JPH08290101A - Partial coating method and production of color filter using the method - Google Patents

Abstract

PURPOSE: To produce one or plural color filters each having an insulating part at the same time by placing a mask provided with an opening only at the necessary part on a traveling substrate and coating the substrate by napkin, bleeding, bar or blade coating from above the mask. CONSTITUTION: A film mask, e.g. 305 by 405mm, provided with a 100 by 150mm openings at the parts, e.g. four, to be coated with an adhesive is placed on a film substrate 1, e.g. 300 by 400mm, being conveyed by a conveyor 10, and an adhesive is applied from above the film mask by napkin coating or bar coating to partially coat the part of the substrate 1 corresponding to the color photosensitive layer. Consequently, the color photosensitive material is adhered to the substrate 1. The viscosity of a coating soln. 26 is controlled to 5cP and the wet coating thickness to 2cc/m<2> . In this case, a fluororesin as a water- repellent substance is used as the material on the boundary edge of the opening of the mask to prevent the thick coating of the edge.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a partial coating method for coating an adhesive layer on a portion corresponding to a color filter layer on a substrate, or a portion for forming a color filter on the substrate by using the partial coating method. The present invention relates to a simple and efficient manufacturing method of a color filter, which is manufactured by partially coating the overcoat layer of.

[0002]

2. Description of the Related Art Color filters are color face plates for CRT display, photoelectric conversion element plates for copying,
It is used in filters for single-tube color TV cameras, flat panel displays using liquid crystals, color solid-state image sensors, and the like. The commonly used color filters are
The three primary colors of blue, green and red are arranged regularly, but if necessary, there are also four or more hues. For example, a color filter for an image pickup tube or a color filter for a liquid crystal display device requires a black pattern for various purposes.

Conventionally known methods for producing a color filter include a vapor deposition method, a dyeing method, a printing method, a pigment dispersion method, an electrodeposition method and a resist electrodeposition transfer method. However, the color filters obtained by these methods have drawbacks such as requiring complicated manufacturing steps, being prone to pinholes and scratches, having a low yield, and being inaccurate.

In order to solve these drawbacks, an internal development method using a silver halide color light-sensitive material (see, for example, Japanese Patent Laid-Open Publication No.
2-148952, 62-71950, 63-
261361) and an external mold developing method (for example, Japanese Patent Laid-Open No.
No. 6342), a method for producing a color filter was investigated. However, the latter method requires color development at least three times, and it cannot be said that the processing steps are simple. Further, both methods require a photosensitive material having a multi-layered structure, and spin coating is repeated in order to apply a photosensitive layer on a hard support such as a glass substrate.

On the other hand, the present applicant has improved the above-mentioned various drawbacks and provided a color filter which is suitable for mass production and has excellent spectral transmittance and a manufacturing method thereof, which does not require complicated steps. Japanese Patent Application No. 6-303977).

[0006]

However, in some cases, the frame edge portion of the color filter needs an insulating portion where the glass substrate for providing electrodes and the like is exposed.
It was necessary to manufacture not only one color filter but also many color filters on one substrate in order to meet manufacturing cost requirements.

The object of the present invention is to solve the problems of the prior art, to provide an insulating portion at the frame edge of a color filter where the substrate surface for providing electrodes and the like is exposed, and to provide a single substrate on one substrate.
It is an object of the present invention to provide a partial coating method useful for simultaneously producing one or a plurality of color filters, and a method for producing a color filter using the same.

[0008]

The above object of the present invention is to mount a mask having an opening only on a portion to be coated on a substrate to be transported, and apply a napkin coating method from above the mask. Partial coating method characterized by coating by bleeding coating method or bar coating method, napkin coating device, bleeding coating device, or a mechanism for bringing the carrier and the bar coating device into contact with the substrate to be transported, And / or a napkin applicator, the substrate and / or oozing applicator, or the substrate and / or bar applicator, or the substrate and / or blade applicator are moved up and down relative to each other according to the application position line, In addition, the adhesive coating liquid for the color filter or the overcoat coating liquid for the color filter is applied only to a necessary portion while adjusting the amount of the coating supply liquid according to the coating position line. Partial coating method, which is characterized in that a gravure cylinder, a flexographic relief plate or an offset plate having an uneven surface corresponding to a portion to be coated is brought into contact with a substrate to be transported, and coating is performed only to a required portion. Coating method: Adhesion of a color photosensitive material in which a color photosensitive layer is provided on a support through a release layer, to a light-transmissive substrate coated with an adhesive layer only on a portion corresponding to the color filter, with the support surface facing outward. Then, the remaining color photosensitive material is peeled off from the substrate leaving only the color photosensitive layer adhered to the adhesive layer, the remaining color photosensitive layer is exposed in a pattern, and color development and desilvering are performed, A method of manufacturing a color filter for obtaining a color filter on the substrate, wherein the adhesive layer is provided by any one of the partial coating methods described above. And the color light-sensitive material in which a color light-sensitive layer is provided on the support via a release layer, with the support surface facing outward on a light-transmissive substrate coated with an adhesive layer only on the part corresponding to the color filter. Adhesion, peeling off the remaining color photosensitive material from the substrate leaving only the color photosensitive layer bonded to the adhesive layer, exposing the color photosensitive layer in a pattern, and then performing color development and desilvering, A method for producing a color filter, which comprises obtaining a color filter on the substrate and then partially coating an overcoat layer on the color filter, wherein the overcoat layer is formed by any one of the above partial coating methods. This is achieved by a method for manufacturing a color filter, which is characterized by being provided.

The mask used in the first partial coating method of the present invention, which has openings formed only on the portions of the substrate that need to be coated, has an adhesive layer provided only on the portions of the substrate where the color filter layers are formed. Alternatively, it is used to provide the overcoat layer only on the color filter layer. Therefore, the size of the opening becomes the size of the color filter layer surface. The thickness of this mask is preferably close to the thickness of the coating liquid. Further, in order to prevent the coating liquid from flowing around to the back side of the mask, it is possible to use a mask material that repels the coating liquid, or to use a mask in which a water-repellent substance is thinly applied to at least the edge of the opening. preferable.

As the water-repellent substance used in this case,
For example, a water-repellent resin for fibers such as silicone oil, silicone emulsion, fluorine emulsion, zirconium salt-containing paraffin emulsion, and wax can be used. This mask is placed on a substrate, and an adhesive layer or an overcoat layer is applied onto the mask by a napkin coating method, a bleeding coating method, or a bar coating method.

The napkin coating in the first and second partial coating methods of the present invention means that a gauze, synthetic fiber or the like which is brought into contact with the substrate is formed into a bag shape and the coating solution is supplied from inside or outside the bag shape. It is a method of applying in a napkin form, and more specifically, for example, Japanese Patent Publication No. 51-16214 and Japanese Patent Publication No. 60-
No. 40903. Further, the bleeding coating of the present invention is a method of leaching and coating the coating liquid from a coating member made of a fibrous material or a fiber woven fabric, and more specifically, for example, JP-A-6-222535 and JP-A-6-52235. -222536 and JP-A-6-22537.

The application member of the napkin applicator is preferably gauze or synthetic fiber.

The bar coating method in the first and second partial coating methods of the present invention is a method in which a coating liquid is supplied to the bar and a thin layer coating is carried out by contact between the substrate and the bar while the substrate is being transported. Specifically, for example, Japanese Patent Laid-Open No. 3-15
No. 1082 publication. In the case of the bar coating method, a backing roller that presses the substrate from above is required in order to bring the bar into close contact with the substrate, and the backing roller on the upper side of the substrate and the coating bar on the lower side of the substrate sandwich the substrate while contacting the substrate. This is a coating method in which the coating liquid is supplied so that a liquid pool is formed immediately before, and the coating amount is regulated by a bar.

The blade coating method in the first partial coating method of the present invention is a fixed blade facing the substrate at a constant interval or a flexible blade pressed against the substrate at a constant pressure to regulate the amount of liquid. Is the way to do it.

In the second partial coating method of the present invention,
Amount of coating liquid while moving the substrate and / or napkin applicator, substrate and / or oozing applicator, or substrate and / or bar applicator up and down relative to the application position line and according to the application position. Apply to the necessary part while adjusting. The thickness of the coating liquid is adjusted by the gap between the substrate and the coating device and the supply amount of the coating liquid. When using a napkin applicator or a bleeding applicator, the gap between the substrate and the applicator is controlled by moving the substrate up and down by the transfer mechanism or operating the napkin applicator or the bleeding applicator up and down on the substrate. You can In the case of a bar applicator, by raising the backing roller that holds the substrate, the pressing force of the bar applicator on the substrate decreases, and the gap between the substrate and the bar applicator changes depending on the rotation direction and rotation speed of the bar. To be It is also possible to change the gap between the substrate and the bar applicator by moving the bar applicator up and down. However, this operation needs to be controlled in time with the supply amount of the coating liquid.

In the second partial coating method of the present invention, in order to coat only the portion that needs to be coated, it is necessary to detect the positions of the portion that needs to be coated and the portion that does not need to be coated. This means that the applicator is moved up and down relative to the substrate in time with respect to the application position line. Also, since there are coated parts and uncoated parts on the substrate, it is necessary for the applicator to stop or start the supply amount of the coating liquid, and it is necessary to adjust the supply amount of the coating liquid each time. It is necessary to be carried out in good time while adjusting to.

In the third partial coating method of the present invention,
A gravure cylinder, a flexographic relief printing plate, or an offset printing plate having an uneven surface corresponding to a necessary portion is brought into contact with the transported substrate. In this case, for the same reason as in the bar coating method, a backing roller is arranged on the opposite surface of the substrate to sandwich the substrate. For example, a direct gravure coater consists of a gravure cylinder, a doctor and a rubber coated backing roller. The substrate passes between the gravure cylinder and the rubber-coated backing roller, and the coating liquid in the cell of the gravure cylinder is transferred from the cell to the substrate after the excess coating liquid is removed by the doctor blade. The nip pressure in this case is 1.8.
It is generally about 18 Kg / cm ² . The coating amount is adjusted by the shape and size of the cell of the gravure roll cylinder, flexographic relief plate, or offset plate, the solid content of the coating agent and the flow characteristics.

Embodiments of the present invention will be described with reference to the drawings.
In the first partial coating method of the present invention, as shown in FIG. 1, a film mask having an opening portion provided only on a portion (color filter layer portion) 2 that needs to be coated is placed on a substrate 1 to be transported. Then, coating is performed on the film mask by a napkin coating method, a bleeding coating method, or a bar coating method.

The napkin applicator 20 or the exudation applicator 30 of the napkin application method used in the second partial application method of the present invention will be described with reference to side views of the applicator shown in FIGS. First, the napkin applicator of FIG. 2 will be described. In this apparatus, the coating head portion of the substrates 1 conveyed one by one on the conveyor 10 is detected, and the coating member 22 of the napkin applicator 20 is lowered onto the conveyed substrate at a timing suitable for the coating position, and coating is performed. Do. The coating liquid 26 permeates the coating member 22 from the coating liquid tank 24 with a constant head, through the electromagnetic opening / closing valve 23,
Next, it is exuded to the outside of the application member 22 and applied on the substrate to be transported. In this apparatus, the electromagnetic opening / closing valve 23 is opened at an appropriate timing, and the first coating is started on the substrate when the coating liquid supply amount becomes about 1/2 of the predetermined amount defined by the head. Then, a predetermined amount of liquid is continuously sent for a set time. When the rear end of the coating section on the substrate is approached, the electromagnetic on-off valve 23 is closed at a proper timing while aligning with the coating position line, and when the supply amount of the coating liquid at the rear end of the coating section becomes about 1/2 of the predetermined amount, coating is performed. The container is pulled up and separated from the substrate, and the coating is completed. The above is repeated every time the required coating portion of the substrate comes under the applicator to perform partial coating.

As an up-and-down mechanism for contacting and separating the coating unit and the substrate, a conveyer for transporting the substrate may be moved up and down together with the substrate in addition to the method for moving the applicator 20 portion up and down.
It is preferable to use gauze or synthetic fiber as the coating member 22. Since the coating member 22 has a constant coating liquid holding force, it is useful for continuously changing the coating supply amount that is opened and closed by the electromagnetic opening / closing valve, instead of stepwise control of 1 or 0. Therefore, it is preferable to set the timing of the application start and stop operations according to the performance of the application member.

Next, the exudation coating device shown in FIG. 3 will be described. In this apparatus, the coating leading portion of the substrates 1 conveyed one by one on the conveyor 20 is detected, and the bleeding-out coating member 32 of the coating device 30 oozes out at a proper timing according to the coating position.
Is dropped onto the substrate being conveyed, and coating is performed. The coating liquid 16 permeates the internal member 35 from the coating liquid tank 14 having a constant head through the electromagnetic opening / closing valve 13, then permeates to the coating member 32, and is coated on the substrate to be transported.
In this apparatus, the electromagnetic opening / closing valve 13 is opened at an appropriate timing, and the first coating is started on the substrate when the coating liquid supply amount becomes about 1/2 of the predetermined amount defined by the head. Then, a predetermined amount of liquid is continuously sent for a set time. When the rear end of the coating section on the substrate is approached, the electromagnetic opening / closing valve 13 is closed at a proper timing in line with the coating position line, and when the coating liquid supply amount at the rear end of the coating section becomes about 1/2 of the predetermined amount, coating is performed. The container is pulled up and separated from the substrate, and the coating is completed. The above is repeated every time the required coating portion of the substrate comes under the applicator to perform partial coating.

As the vertical mechanism for contacting and separating the coating section and the substrate, a conveyor for transporting the substrate may be moved up and down together with the substrate in addition to the method for vertically moving the applicator 30.
The internal member 35 is installed on the upstream side of the coating member 32 as a cushioning material for supplying the coating liquid. Internal member 35
As the material of the sponge, a fibrous material such as sponge, cotton, or a non-woven fabric or a fibrous material such as a woven fabric is suitable, and as the coating member 32, a woven fabric such as a velvet or a woven fabric called velvet or suede is suitable. is there.

Since the internal member 35 and the coating member 32 have a constant coating liquid holding force, it is useful for continuously changing the coating supply amount which is opened and closed by the electromagnetic opening / closing valve, instead of stepwise control of 1 or 0. . Therefore, it is preferable to set the timing of starting and stopping the coating in accordance with the performance of the internal member and the coating member.

Next, the bar applicator 40 used in the present invention will be described. As shown in FIGS. 4, 5 and 6, the bar coating device moves the substrate 1 while sandwiching the substrate 1 between the coating bar 41 and the backing roller 45, and contacts the substrate while rotating in the same direction as the substrate. In an apparatus for supplying the coating liquid 48 from the coating liquid supply port 43 so that a liquid pool 49 is formed immediately before the contact portion with the substrate 1, and applying the coating liquid 48 to the substrate 1 by the coating bar 41. is there.

In this system, it is desirable to use an edge roller as the pass roller 44 so as not to come into contact with the lower surface of the substrate 1 as much as possible. In this case, the bar 41 is a bar obtained by crushing the wire grooves of the ears with solder or the like. By forming an uncoated portion on the side, it is possible to prevent the pass roller 44 from being soiled by the coating liquid after coating. Further, if the backing roller 45 that functions as a pressing roller has an elastic body such as rubber on the surface, the substrate 1 is spread over the entire width.
It is suitable for closely contacting the stepped coating bar 46 as shown in FIG.

In the present invention, an important factor for performing uniform coating is to maintain the liquid pool 49 in an optimum shape. Since the substrate 1 is intermittently fed during the substrate coating, the liquid pool 49 is intermittently formed. Therefore substrate 1
It is necessary to devise such that the liquid pool 49 is formed in a steady state at the same time as the contact with the bar 41 (46). Figure 6
In the bar applicator 40 shown in FIG. 2, when the rotation of the bar 41 (46) is stopped, the height L _{1 of the} liquid surface and the height of the apex of the bar 41 created by the coating liquid supplied to the side where the liquid pool 49 is to be formed. By setting the distance a to the length L ₂ in the range of 0.5 to 4.5 mm, preferably in the range of 1.0 to 4.0 mm, the liquid pool 49 is quickly formed into a steady shape. When the distance a in FIG. 6 becomes larger than 4.5 mm, the liquid pool 49
Takes a long time to form a steady state, and the substrate 1
The film thickness at the leading end of the liquid is likely to be unstable, and even after reaching the steady state, the shape of the liquid pool 49 is likely to be uneven in the width direction, and vertical unevenness is likely to occur. On the contrary, when the distance a is less than 0.5 mm, the liquid pool 49 becomes large and the coating is likely to be uneven.

The height of the dam portion 42 is appropriately adjusted so that the above distance is within a predetermined range. At this time, the height of the dam member 42 is set to the same level as the target liquid surface height, and the target liquid surface height can be easily maintained while the coating liquid overflows to some extent. However, if it is desired to prevent overflow for reasons such as saving the amount of coating liquid, the height of the dam member 42 can be set to be equal to or higher than the target liquid level height. However, in this case, it is preferable to control the liquid transfer amount while detecting the liquid level by rotating the bar.

On the other hand, the weir member 42 and the bar 41 shown in FIG.
The distances c and e from (46) are preferably set to 3 to 20 mm.

As an embodiment, in FIG. 4, when the position of 3 to 20 mm before the coating end of the substrate 1 comes into contact with the bar 41, the rotation speed of the bar is reduced to ⅕ or less of the substrate transfer speed, or Stop rotating. The substrate is conveyed while receiving a driving force from the backing roller 45 that is being pulled and is rotating at a constant speed. Further, as another aspect, it is possible to widen the gap between the backing roller 45 and the coating bar 41 to prevent the back adhesion to the substrate.

The material of the bar 41 (46) used in the present invention is preferably a metal in many cases in terms of strength and chemical resistance, but is not limited thereto, and the wire bar 1 wound with a plastic fiber such as nylon is used. Grooved bars made of rubber or plastic are also used. In order to obtain a good coated surface condition, the wire diameter range is preferably 0.05 to
The range is 1.0 mm, more preferably 0.05 to 0.7 mm. An appropriate bar is selected within that range.

The coating speed in the present invention is 0.1 to 20 m.
/ Min range, preferably 0.2 to 10 m / min. The blade coating of FIG. 8 will be described. The apparatus of this aspect is equipped with a fixed blade 61 facing the substrate with a constant gap or a flexible blade 61 attached to the substrate 1 at a constant pressure, and supplies the coating liquid in an amount necessary for coating. Is transported at a constant speed, or
The blade 61 may be operated in parallel with the substrate 1.

The blade may be made of any material such as metal, rubber and plastic. The napkin coating device, the bleeding coating device, the bar coating device, and the blade coating device described above can be used as they are in the first partial coating method of the present invention.

Next, examples of gravure cylinders used in the present invention will be described with reference to FIG. A rubber-coated backing roller 52 corresponding to the upper and lower surfaces of the substrate 1 to be transported,
It is composed of a doctor 53 and a gravure cylinder 51. The gravure cylinder 51 is formed with cells 55 corresponding to the portions that need to be coated. Gravure cylinder 51
Is immersed in a coating liquid tank 54 and rotated, and the excess coating liquid containing the coating liquid in the cells 55 on the gravure cylinder surface is scraped off by the doctor 53, comes into contact with the substrate 1, and the rubber-coated backing roller 52 The pressing liquid transfers the coating liquid onto the lower surface of the substrate 1. In the case of a gravure cylinder, the portion without the cells 55 on the surface of the gravure cylinder is also scraped off by the doctor, so that a portion where the coating liquid is transferred to the substrate and a portion where the coating liquid is not applied can be provided by simply rotating the substrate. It is important to synchronize the transport and spacing with the rotation of the gravure cylinder. The vertical movement of the applicator and the substrate is not required unlike other partial coating methods.

The coating amount is 0.39 depending on the cell shape (pyramid type, lattice type, diagonal type) and cell depth.
g / m ² ~63g / m ² and can be selected in a wide range, although the coating speed used at a relatively high speed 360 m / m ^3, may be at a low speed. The nip pressure between the gravure cylinder 51 and the rubber-coated backup roller 52 between the substrates 1 is 1.8 to 1.
It is 8 kg / cm ² .

The color light-sensitive material in which a color light-sensitive layer having a release layer interposed on the support in the present invention is provided will be described.

As the binder or protective colloid which can be used in the silver halide emulsion layer, intermediate layer and protective layer of the color light-sensitive material of the present invention, it is advantageous to use gelatin because it has a relationship with the peeling layer. Other hydrophilic polymers can also be used. As a hydrophilic polymer,
For example, polyvinyl alcohol, polyvinyl alcohol partial acetal, polyvinyl butyral, poly-N-vinyl pyrrolidone, polyacrylic acid, polyacrylamide,
Examples thereof include polyvinyl imidazole, polyvinyl pyrazole, carrageenan, gum arabic, and further homopolymers or copolymers of hydroxyalkyl cellulose, carboxymethyl cellulose, cellulose sulfate, cellulose acetate hydrogen phthalate and cellulose derivatives such as sodium alginate.

Further, a graft polymer of gelatin and another polymer may be used. As the gelatin-graft polymer, gelatin is acrylic acid, methacrylic acid, their derivatives such as esters and amides, and vinyl type polymers such as acrylonitrile and styrene. It is possible to use grafted monomers or copolymers of monomers. Particularly preferred is a graft polymer with a polymer having a certain degree of compatibility with gelatin, for example, a polymer such as acrylic acid, methacrylic acid, acrylamide, methacrylamide, or hydroxyalkyl methacrylate. Examples of these are described in US Pat. Nos. 2,763,625, 2,831,767, 2,956,884, and JP-A-56-65133.

Typical synthetic hydrophilic polymer substances include, for example, West German patent application (OLS) 2,312,708, US Pat. Nos. 3,620,751 and 3,879,205.
And those described in JP-B-43-7561 can also be used. The above hydrophilic polymers may be used alone,
You may use 2 or more types together.

As gelatin, alkali treatment, acid treatment,
What was subjected to any of the enzyme treatments, or a mixture thereof may be used. It can also be obtained by reacting gelatin with various compounds such as acid halides, acid anhydrides, isocyanates, bromoacetic acid, alkanesultonic acid, vinylsulfonamidic acid, maleinimide compounds, polyalkylene oxides and epoxy compounds. Gelatin derivatives are also used. Specific examples of the gelatin derivative are U.S. Pat. Nos. 2,614,928, 3,132,945, 3,186,846, 3,312,553, British Patents 861,414 and 1,033. No. 189, No. 1,005,784, and Japanese Examined Patent Publication No. 42-26345.

Preferably, the layers other than the release layer of the light-sensitive material are composed of a binder containing gelatin (including its derivative) as a main component, and the release layer is composed of a layer containing a polymer other than gelatin (including its derivative) as a main component. To be done. A gelatin-based binder means that about 80% or more of the binder is gelatin or a gelatin derivative. Similarly, the release layer contains about 80% of the hydrophilic polymer other than gelatin.
% Or more is included. The hydrophilic polymers may be used alone or in combination of two or more. When the content of the hydrophilic polymer is about 80% or more, the rest may contain gelatin or a gelatin derivative, and may further contain a dispersion of a hydrophobic compound.

The hydrophilic polymer of the release layer is preferably a cellulose derivative, particularly preferably hydroxyalkyl cellulose. Examples of the compound include hydroxyethyl cellulose, hydroxypropyl cellulose, hydroxypropyl methyl cellulose and the like. Also, a mixture thereof is effective. The release layer is suitably 0.02 to 2.0 g / m ² , preferably 0.05.
~ 1.0 g / m ² .

In the present invention, at least one layer adjacent to the release layer contains about 8 parts of gelatin or gelatin derivative.
It is desirable to provide a gelatin-based layer containing 0% or more.
The remaining about 20% or less may include dispersions of the hydrophilic polymers or hydrophobic compounds described above. This layer is 0.01 ~
2.0 g / m ² is suitable, and preferably 0.05-1.
It is 0 g / m ² . The total coating amount of the binder (hydrophilic polymer) other than the release layer of the light-sensitive material of the present invention is 20 g / m ² or less, preferably 10 g / m ² or less, and particularly ^{2 to 8} g
/ M ² is preferred.

The light-sensitive material that can be used in the present invention is
The following are preferred. They are an external color reversal film capable of obtaining a positive image by color reversal processing, an internal color reversal film, a color negative film by color negative processing, a display color film, an auto positive color film and the like. Regarding these, Science Handbook (top) (Maruzen) pp. 559-564, 569
Page, The Theory of the Photographic Process, 4th Edition, edited by TH James. In addition, as described in JP-A-63-261361, an inner type color light-sensitive material containing two or more kinds of couplers having different hues obtained by color development in the same light-sensitive silver halide emulsion layer, and the same as those described in JP-A-63-261361. As described in No. 79701, it is also possible to use an external color light-sensitive material which is developed by using a developer containing two or more kinds of couplers showing different colors with respect to the same photosensitive silver halide and a developing agent.

The light-sensitive material and the processing method which can be preferably used in the present invention will be outlined below. Preferred silver halides contained in the emulsion layer of the light-sensitive material used in the present invention are silver chloride, silver chlorobromide, silver bromide, silver iodobromide and silver chloroiodobromide, and the average iodide content is Is preferably 3% or less and 0%. Particularly preferably, it is substantially pure silver bromide or pure silver chloride.

The silver halide grains in the emulsion include those having regular crystals such as cubes, octahedra and tetradecahedrons, those having irregular crystal forms such as spheres and plates, and twin crystals. It may have a crystal defect such as a plane or a composite form thereof. A cube or an octahedron is particularly preferable.

The grain size of the silver halide may be fine grains of about 0.2 micron or less or large grains having a projected area diameter of up to about 10 microns, and may be a polydisperse emulsion or a monodisperse emulsion, but it is 0.15. Preference is given to using monodisperse emulsions with a grain size of microns to 1.5 microns and a coefficient of variation of 15% or less.

The silver halide emulsion that can be used in the present invention is
For example, Research Disclosure (RD), 17
Volume 6 No. 17643 (December 1978), 22-23
Page, "I. Emulsion preparation and type
s) ”, and ibid. No. 18716 (1979, 11)
Mon), pp. 648, "The Physics and Chemistry of Photography" by Graphide,
Published by Paul Montel (P.Glafkides, Chemic et Phisiqu
e Photographique (Paul Montel, 1967)), "Photoemulsion Chemistry" by Duffin, published by Focal Press (GFDuff
in, Photographic Emulsion Chemistry (Focal Press, １
966)), "Manufacturing and coating of photographic emulsions" by Zelikmann et al., Published by Focal Press (VLZelikman et al, Mak.
ing and Coating Photographic Emulsion (Focal Press,
1964) and the like.

US Pat. Nos. 3,574,628 and 3,
655,394 and British Patent 1,413,748.
The monodisperse emulsions described in JP-A No. 1989-2000 are also preferable.

Further, tabular grains having an aspect ratio of about 5 or more can be used in the present invention. Tabular grains are written by Gatov, Gutoff, Photographic Science and Eng.
ineering, Vol. 14, pp. 248-257 (1970)
Year): U.S. Pat. Nos. 4,434,226 and 4,41
4,310, 4,433,048, 4,43
It can be easily prepared by the method described in 9,520 and British Patent No. 2,112,157.

The crystal structure may be uniform, may have different halogen compositions inside and outside, may have a layered structure, and silver halides having different compositions may be bonded by epitaxial bonding. May be
Further, it may be bonded to a compound other than silver halide such as silver rhodanide and lead oxide. Also, a mixture of particles having various crystal forms may be used.

The amount of the silver halide emulsion used is preferably 1 to 5 times, and more preferably 1 to 3 times, the theoretical equivalent of the coupler.

The silver halide emulsion is usually one which has been physically ripened, chemically ripened and spectrally sensitized. Additives used in such a process are listed in Research Disclosure No. 17643, No. 18716, and No. 18716.
It is described in No. 307105, and the relevant parts are summarized in the table below. Known photographic additives that can be used in the present invention are also described in the above-mentioned three Research Disclosure magazines, and the relevant portions are shown in the following table.

Additive type RD17643 RD18716 RD307105 1 Chemical sensitizer page 23 648 page right column 866 page 2 Sensitivity enhancer Same as above 3 Spectral sensitizer, page 23 to page 648 right column to 866 page to 868 page Supersensitization Agent page 649 right column 4 whitening agent page 24 648 page right column 868 page 5 antifoggant page 24 to page 649 page right column 868 to 870 and stabilizer 6 light absorber, page 25 to page page 649 right column 〜873 Luther dye, Purple 650 page 650 Left column External absorber 7 Stain inhibitor 25 page Right column 650 Page left 〜Right column 8 Dye image stabilizer 25 page 650 page Left column 872 page 9 Hardener 26 page 651 page left Column 874-875 page 10 Binder 26 page ibid.873-874 page 11 plasticizer, lubricant page 27 page 650 page right column 876 page 12 coating aid, surface 26-27 page ibid 875-876 activator 13 antistatic agent 27 Page ibid 876-877 pages

Various color couplers can be used in the present invention, specific examples of which are described in the patents described in Research Disclosure (RD) No. 17643, VII-CG. .

As the coupler used in the present invention, a two-equivalent color coupler in which an active position is substituted with a leaving group is preferable to a four-equivalent color coupler having a hydrogen atom in terms of reducing the coated silver amount. A typical example of the yellow coupler that can be used in the present invention is an oil protect type acylacetamide coupler. A specific example is
US Pat. Nos. 2,407,210 and 2,875,0
57 and 3,265,506. In the present invention, it is preferable to use a 2-equivalent yellow coupler, and US Pat. Nos. 3,408,194 and 3,408,194 are preferable.
Nos. 447,928, 3,935,501, 4,022,620 and the like, or oxygen atom-releasing yellow couplers or JP-B-58-10739.
U.S. Pat. Nos. 4,401,752 and 4,32
6,024, RD18053 (April 1979), British Patent No. 1,425,020, West German Application Publication No. 2,2.
No. 19,917, No. 2,261,361, No. 2,
Typical examples thereof include nitrogen atom-releasing yellow couplers described in JP-A Nos. 329,587 and 2,433,812. The α-pivaloyl acetanilide type coupler is excellent in the fastness, especially the light fastness, of the color forming dye, while the α-benzoyl acetanilide type coupler can obtain a high coloring density.

Examples of the magenta coupler which can be used in the present invention include oil-protected type and preferably pyrazoloazole type couplers such as 5-pyrazolone type and pyrazolotriazole type couplers. The 5-pyrazolone-based coupler is preferably a coupler in which the 3-position is substituted with an arylamino group or an acylamino group, from the viewpoint of the hue and color density of the color forming dye, and a typical example thereof is US Pat.
No. 1,082, No. 2,343,703, No. 2,6
No. 00,788, No. 2,908,573, No. 3,
No. 062,653, No. 3,152,896 and No. 3,936,015. As the leaving group of the 2-equivalent 5-pyrazolone-based coupler, the nitrogen atom leaving group described in US Pat. No. 4,310,619 or the arylthio group described in US Pat. No. 4,351,897 is particularly preferable. European Patent No. 73,63
The 5-pyrazolone-based coupler having a ballast group described in No. 6 provides high color density.

As the pyrazoloazole type coupler, pyrazolobenzimidazoles described in US Pat. No. 3,369,879, preferably US Pat. No. 3,725,06.
No. 7, pyrazolo [5,1-c] [1,2,
4] Triazoles, Research Disclosure 2
4220 (June 1984) and pyrazolotetrazoles and Research Disclosure 24230.
(June 1984), pyrazolopyrazoles. The imidazo [1,2-b] pyrazoles described in European Patent No. 119,741 are preferable in view of the small yellow sub-absorption of the color forming dye and the light fastness, and the pyrazolo compounds described in European Patent No. 119,860 are preferable. [1,5-b]
[1,2,4] triazole is particularly preferred.

Cyan couplers which can be used in the present invention include oil-protection type naphthol type and phenol type couplers, and US Pat. No. 2,474,293.
-Type couplers described in U.S. Pat. No. 4,054
No. 2,212, No. 4,146,396, No. 4,2
Representative examples thereof include oxygen atom desorption type two-equivalent naphthol couplers described in Nos. 28,233 and 4,296,200. Further, specific examples of the phenol-based coupler are described in U.S. Pat. No. 2,369,929 and U.S. Pat.
801,171, 2,772,162, 2,895,826 and the like. Cyan couplers that are robust to humidity and temperature are preferably used in the present invention, of which typical examples are US Pat.
No. 72,002, a phenolic cyan coupler having an alkyl group of ethyl group or more at the meta position of the phenol nucleus, US Pat. Nos. 2,772,162, and 3,
No. 758,308, No. 4,126,396, No. 4,334,011, No. 4,327,173, No. 4,500,635, West German Patent Publication No. 3,329,
2,5-diacylamino-substituted phenol couplers described in U.S. Pat. No. 729, and U.S. Pat. No. 3,446,6.
No. 22, No. 4,333, 999, No. 4,451,
Nos. 559 and 4,427,767, and the like include phenolic couplers having a phenylureido group at the 2-position and an acylamino group at the 5-position.

In the present invention, 2,5-diacylamino-substituted phenol couplers and carbostyryl couplers described in Japanese Patent Application No. 6-84315 are desired as color filters in terms of fastness to temperature and humidity, coloring hue and the like. Is preferred.

Typical examples of polymerized dye-forming couplers are US Pat. Nos. 3,451,820 and 4,084.
No. 0,211, No. 4,367,282 and British Patent No. 2,102,173.

A coupler which releases a photographically useful residue upon coupling is also preferably used in the present invention. The DIR coupler which releases the development inhibitor is the above-mentioned R
Patents described in D17643, VII to F, JP-A-5
Nos. 7-151944, 57-154234, 60
Those described in US Pat. No. 4,184,248 and US Pat. No. 4,248,962 are preferable.

As a coupler which releases a nucleating agent or a development accelerator imagewise during development, British Patent No. 2,093
7,140, 2,131,188, JP-A-59
Those described in Nos. 157638 and 59-170840 are preferable.

Other couplers that can be used in the light-sensitive material of the present invention include US Pat. No. 4,130,42.
Competitive couplers described in US Pat.
No. 472, No. 4,338, 393, No. 4,310,
No. 618 and the like, multiequivalent couplers, JP-A-60-18.
Examples thereof include DIR redox compound releasing couplers described in 5950 and the like, and couplers releasing a dye that restores color after separation described in EP 173,302A.

In the light-sensitive material according to the present invention, a layer containing a coupler has a layered structure of EP 0,277,589A2.
It is preferred to use color image-storing improving compounds as described in US Pat. In particular, it is preferably used in combination with a pyrazoloazole-based magenta coupler.

That is, the compound (F) which reacts with the aromatic amine-based developing agent remaining after the color development processing to form a chemically inactive and substantially colorless compound and / or remains after the color development processing. The use of a compound (G) which reacts with an oxidized product of an aromatic amine-based developing agent to form a chemically inactive and substantially colorless compound, simultaneously or alone, is effective in, for example, storage after processing. It is preferable in order to prevent the occurrence of stains and other side effects due to the formation of a coloring dye by the reaction of the coupler with the color developing agent remaining in the film or its oxidant.

The light-sensitive material according to the present invention may contain a hydroquinone derivative, an aminophenol derivative, a gallic acid derivative, an ascorbic acid derivative or the like as a color antifoggant.

In order to prevent the cyan dye image from being deteriorated by heat and especially light, it is more effective to introduce an ultraviolet absorber into the cyan coloring layer and the layers on both sides adjacent to the cyan coloring layer. As the ultraviolet absorber, a benzotriazole compound substituted with an aryl group (for example, those described in US Pat. No. 3,533,794), a 4-thiazolidone compound (for example, US Pat. No. 3,314,794 and No. 3,352,681), benzophenone compounds (for example, those described in JP-A-46-2784), cinnamic acid ester compounds (for example, US Pat. No. 3,705,805 and the same). No. 3,707,395), a budadiene compound (for example, US Pat.
No. 045,229) or a benzoxazole compound (for example, US Pat. No. 3,406,070).
No. 4,271,307). Ultraviolet absorbing couplers (for example, α-naphthol type cyan dye forming couplers) and ultraviolet absorbing polymers may be used. These ultraviolet absorbers may be mordanted to a specific layer. Among them, the benzotriazole compound substituted with the above aryl group is preferable.

In order to prevent various molds and bacteria which propagate in the hydrophilic colloid layer and deteriorate the image, the light-sensitive material according to the present invention has antibacterial properties as described in JP-A-63-271247. It is preferable to add a fungicide.

Hydrophobic additives such as couplers used in the present invention can be introduced into the light-sensitive material by various known dispersion methods.
Examples of the high boiling point solvent used in the oil-in-water dispersion method are described in US Pat. No. 2,322,027. The amount of the high boiling point solvent used is 10 g or less, preferably 5 g or less, and more preferably 1 to 0.1 g per 1 g of the coupler. Further, 1 g or less, more preferably 0.5 g or less, and particularly 0.3 g or less is suitable for 1 g of the binder.

The steps, effects, and specific examples of the latex for impregnation in the latex dispersion method are described in US Pat. No. 4,199,
363, West German Patent Application (OLS) No. 2,541,27
No. 4 and No. 2,541,230.

Further, for the outer type light-sensitive material, a coupler soluble in the developing solution is used instead of the hydrophobic coupler, and it is added not in the light-sensitive material but in the color developing solution. Specific examples of this coupler are described in JP-A No. 64-79701.

Further, regarding the internal latent image type emulsion and silver halide grains which can be used in the direct positive light-sensitive material such as the auto positive color film and the auto positive color paper of the present invention, JP-A-63-81337, JP Kaihei 1-
No. 282545 and the like. The internal latent image type emulsion may be a conversion type emulsion or a core / shell type emulsion, but a core / shell type emulsion is preferred.

Details of the color couplers which can be used in the direct positive light-sensitive material are described in JP-A-63-81337, pp. 19-27, and various compounds which can be contained in the light-sensitive material (prevention of color fog). Agents, anti-fading agents, dyes, etc.) are respectively described on pages 28 to 30 of the same specification.

Suitable supports which can be used in the light-sensitive material of the present invention are, for example, those described in RD. No. 17643, page 28,
And No. 18716, page 647, right column to page 648, left column. The surface of these supports may be subbed. Further, glow discharge, corona discharge, UV irradiation or the like may be applied. The back surface of the support may be coated with carbon black or the like to increase heat and electric conductivity.

The light-sensitive material used in the present invention is the RD.
No. 17643, pages 28-29, and No. 1871.
The development process can be carried out by a usual method described in the left column to the right column of 651 of No. 6.

For example, a color development processing step, a desilvering processing step, and a water washing processing step are carried out. In the desilvering step, instead of the bleaching step using a bleaching solution and the fixing step using a fixing solution, a bleach-fixing processing step using a bleach-fixing solution can be performed, a bleaching processing step, a fixing processing step, The bleach-fix processing steps may be combined in any order. The stabilizing process may be performed instead of the washing process, or the stabilizing process may be performed after the washing process. It is also possible to perform a monobath processing step using a one-bath development bleach-fix processing solution in which color development, bleaching and fixing are carried out in one bath. In combination with these treatment steps, a pre-hardening treatment step, a neutralizing step thereof, a stop fixing treatment step, a post-hardening treatment step, an adjusting step, an intensifying step and the like may be performed. In these processes, a so-called activator processing step may be performed instead of the color development processing step.

As the processing bath in each of the above steps, a processing apparatus having a bubble generating means described in JP-A-7-56015 may be used.

As the dye image-forming compound used in the light-sensitive material for the color filter of the present invention, in addition to the above-mentioned color coupler, a diffusible dye corresponding to the reaction in which silver halide is reduced to silver or vice versa is used. Diffusion-resistant dye-donor compounds that release are mentioned. Specific examples of such dye donating compounds are disclosed in JP-A-59-185333 and JP-A-63-20.
1653, European Patent EP220,746B, US Pat. Nos. 4,500,626 and 4,639,408,
4,783,396, 4,232,107, 4,619,884, 4,450,223, 4,503,137, 4,559,290, etc. Has been done.

A light-sensitive material containing such a dye-donating compound in the present invention is described in US Pat. No. 3,923,510.
, West German Patent OLS-2,916,582, JP-A-5
It is possible to form a color filter with the dye-donor compound which is processed according to the method described in Japanese Patent Application No. 4-143230, Japanese Patent Application No. 5-205554, etc. and remains in the light-sensitive material.

The film thickness of the color filter light-sensitive material of the present invention is preferably 20 μm or less in the case of the inner type, and particularly 5 to 15
μ is more preferred. In the case of external photosensitive material, it is 15μ
The following is preferable, and 3 to 10 μ is particularly preferable.

The exposure method applied to the present invention includes a surface exposure method and a scanning exposure method. As a scanning method, a line (slit) scanning or a point scanning method using laser exposure can be applied. As the light source, a tungsten lamp, a halogen lamp, a fluorescent lamp, a mercury lamp (such as a three-wavelength fluorescent lamp), a laser beam, or a light emitting diode is used. Particularly, a halogen lamp, a fluorescent lamp, and a laser beam are preferable.

In exposure, US Pat. No. 4,880,
It is preferable to use the band stop filter described in No. 726. As a result, light color mixture is removed, and color reproducibility is significantly improved.

When a direct positive type color light-sensitive material is used in the present invention, an aromatic primary amine type color developing agent is used after imagewise exposure and after or while being fogged with a light or a nucleating agent. Including, preferably pH 12 or less,
It is preferable to directly form a positive color image by color development, bleaching and fixing treatment with a surface developer. The pH of this developer is more preferably in the range of 11.0 to 10.0.

The fogging treatment which can be used in the present invention is carried out in the presence of a so-called "light fogging method" for giving a second exposure to the entire surface of the photosensitive layer and a "chemical fogging method" in the presence of a nucleating agent. Either of the processing methods may be used. Development processing may be performed in the presence of a nucleating agent and fog light. Further, a light-sensitive material containing a nucleating agent may be fog-exposed.

Regarding the optical fogging method, the above-mentioned Japanese Patent Laid-Open No. 63-63
No. 81313, page 33, line 17 to page 35, last line, and the nucleating agent that can be used in the present invention is described on pages 50 to 53 of the specification, particularly the same specification. It is preferable to use the compounds represented by the general formulas [N-1] and [N-2].

Regarding the nucleation accelerator which can be used in the present invention,
It is described on pages 54 to 57 of the same specification, and a specific example thereof is (A-1) described on pages 55 to 57 of the same.
The use of (A-13) is preferred. This is the end of the description of the color light-sensitive material used in the present invention.

Next, as the light transmissive substrate used in the present invention, those which are transparent, have optical isotropy and have sufficient heat resistance are preferable, for example, polyethylene terephthalate, polybutylene terephthalate, polyethylene naphthalate, polystyrene. , Polycarbonate, polyether sulfone, cellulose acetate, polyarylate, soda glass, borosilicate glass, non-alkali glass, quartz and the like.

The surface of the substrate made of these materials may be subjected to undercoating treatment if necessary. Furthermore, treatments such as glow discharge, corona discharge, and ultraviolet (UV) irradiation may be performed.

The light transmissive substrate can be used in the form of a plate, sheet or film. The thickness of the substrate can be set appropriately according to the application and material,
Generally, it is 0.01 to 10 mm. For example, in the case of a glass substrate, the thickness is in the range of 0.3 to 3 mm.

As the adhesive used for adhering the color light-sensitive material on the light transmissive substrate, a commercially available adhesive can be used. There are various types of adhesives such as thermosetting resin type, thermoplastic resin type, elastomer type and polymer alloy type, and they can be used according to the material to be adhered. For example, when the substrate is glass and the binder of the emulsion layer or the protective layer is mainly gelatin, an epoxy-based polymer alloy adhesive or gelatin solution (particularly a gelatin solution containing colloidal silica. In this case, gelatin and colloidal silica Mixing ratio is 10: 1
~ 1:10. The average particle size of colloidal silica is 0.
5 μm or less, particularly 0.1 μm or less is desirable. ) Is preferred. In the present invention, the color photosensitive material is provided with the support surface as an outer side, that is, the adhesive layer and the photosensitive layer or a protective layer provided on the photosensitive layer is provided on the substrate partially coated with the adhesive layer. Stick together on the body.

Bonding can be accelerated by applying heat and pressure. The heating temperature is 60 ° C. to 180 ° C., the pressing force is 1.8 to 8 kg / cm ² , and the heating time can be set arbitrarily, but 0.1 second to 60 seconds is preferable. Further, the heat bonding may be performed in the presence of a small amount of water.

In the present invention, applying an adhesive layer to a portion corresponding to a color filter formed on a light-transmitting substrate by a partial coating method means that only a substrate portion corresponding to a color filter layer requiring a color photosensitive layer is applied. It is to apply the adhesive by the partial application method. As a result, the color photosensitive layer of the color photosensitive material adheres to the substrate side. At that time, before overlapping with the substrate, the adhesive layer is preliminarily cut with a knife or the like on the color photosensitive layer at the boundary between the portion coated by the partial coating method and the frame edge portion not coated to facilitate separation. You can glue them together.

When the color photosensitive material is adhered to the substrate, the color photosensitive layer in the portion where the adhesive layer is present is in close contact with the adhesive layer, but the color photosensitive layer in the other portions is in the non-adhesive state. Therefore, when the color light-sensitive material is peeled off from the substrate in this state, the color light-sensitive layer in the portion in close contact with the adhesive layer is peeled off from the support of the light-sensitive material at the release layer and remains on the substrate,
The other portion (frame edge portion) is separated from the substrate together with the support. Further, the color photosensitive layer at the frame edge portion may be removed by performing a water washing process.

The color photosensitive layer left adhered on the substrate is exposed in a pattern, and then color development processing and desilvering processing are performed, whereby a color filter is obtained on the substrate.

Next, the pre-hardened color light-sensitive material, which remains on the substrate, is developed and desilvered to form a color filter layer. The color light-sensitive material used in the present invention can be developed by a usual method as described above.

In the color filter produced by the method of the present invention, a resin having heat resistance, water resistance, organic solvent resistance, and high specific electric resistivity is applied as the protective film (overcoat layer) to the outermost layer. You can Examples of such resins are U.S. Pat. Nos. 4,698,295 and 4,668,601.
No., European Patent Application EP-179,636A, 55
6,810A, JP-A-3-163416, and 3-1.
88153, 5-78443, 1-27610.
1, JP-A-60-21637, and JP-A-63-21877.
No. 1 etc. The resulting color filter preferably has as few surface irregularities as possible, for example ±
It is preferably 0.1 μ or less.

The coating of this overcoat layer can be carried out by any of the above-mentioned first, second or third partial coating methods of the present invention. As a result, it becomes possible to apply the overcoat layer only to the color filter portion, and there is no inconvenience that the overcoat layer coating liquid adheres to the frame edge portion and deteriorates the insulating property.

An alignment film such as a polyimide resin may be provided on the overcoat layer of the color filter of the present invention. Further, a deflector or a retardation film may be arranged on the surface of the color filter opposite to the emulsion film of the light transmissive substrate.

[0099]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the following examples.

[0100]

【Example】

(Embodiment 1) A film-like mask 1 (305 mm) in which 100 mm × 150 mm openings are provided at four portions where adhesive application is required on a substrate 1 (300 mm × 400 mm) to be conveyed having dimensions as shown in FIG. (405 mm), and the adhesive is applied from above the film mask by the napkin application method shown in FIG. 2 or the bar application method shown in FIG. 4 to a portion corresponding to the color photosensitive layer on the substrate. Partial coating was performed. The conditions for the coating liquid are a viscosity of 5 c. p. The coating thickness when wet was ² cc / m ² . At this time, by using a fluororesin as a water repellent substance for the material of the edge portion of the opening boundary portion of the film mask, thick coating at the edge portion could be prevented.

(Examples 2 and 3) A partial applicator with a napkin applicator 20 as shown in FIG. 2 was installed on the upper portion of the substrate 1 (300 mm × 400 mm) having the dimensions as shown in FIG. Where the substrate 1 is moved relative to the napkin applicator 20 by ± 2 mm relative to the top and bottom of the conveyor, and the amount of coating liquid is turned on / off at the timing as described above, the portion where the adhesive is required. 1
A coating of ² cc / m ² was applied to four places of 00 mm × 150 mm × 4. While detecting the front end and the rear end of the substrate, it was possible to perform the coating in good timing so that the coating thickness of the front end portion and the rear end portion of the portion where the adhesive was necessary and the coating thickness of both ears did not become thick. As the partial application method, the exudation application method shown in FIG. 3 was used instead of the napkin application, but the same effect was obtained.

(Embodiment 4) On a substrate 1 (300 mm × 400 mm) to be conveyed having dimensions as shown in FIG.
The backing roller 45 and the step coating bar 46 corresponding to the partial coating by the bar coating method as shown in FIGS.
A mechanism for contacting with the adhesive is installed, the head portion of the substrate is detected, the substrate is moved up and down relative to the stepped coating bar 46 with good timing, and the supply amount of the coating liquid is adjusted with good timing. Area that needs application 100mm
The coating was applied to 4 sheets of 150 mm.

While detecting the front end and the rear end of the substrate, it was possible to apply the adhesive so that the required amount of the adhesive was not thickened at the front end and the rear end, and further at both ears.

(Embodiment-5, 6, 7) A substrate 1 (300 mm × 400 m) having a size as shown in FIG.
m) rubber-coated backing roller 5 on the top and bottom respectively
2 and the roller surface on which the cell 55 of the gravure cylinder 51 corresponding to the portion where the adhesive needs to be applied is brought into contact,
Application was performed on 100 mm × 150 mm × 4 places where an adhesive was required. The cell was a pyramid type and the cell depth was 0.025 mm, and the coating speed was 3 m / min. As a result of applying the coating while synchronizing with the cell of the gravure cylinder while detecting the leading end and the trailing end of the substrate, it was possible to perform the coating without thickening the leading end, the trailing end and both ears. The same partial coating was possible using flexographic relief plates and offset plates.

Specific examples of the present invention will be described below.
Embodiments of the present invention are not limited to these. (Example-8) As described in Examples in JP-A-63-293348, a 100 μm thick polyethylene terephthalate support coated with carbon black dispersed in polyvinyl chloride as a back layer was subjected to gelatin subbing. Then, the first to tenth layers having the constitutions shown below were simultaneously coated in multiple layers to prepare a color light-sensitive material. The components and the coating amount (g / m ² unit) are shown below. For silver halide and colloidal silver emulsions, the coating amounts in terms of silver are shown. Each layer of the silver halide emulsion is negative type silver chlorobromide.

First Layer (Release Layer) Hydroxyethyl Cellulose ... 0.72 Terminal Alkyl Modified Polyvinyl Alcohol (Saponification Degree: 98 mol%, Polymerization Degree: 300) ...

Second layer (layer adjacent to gelatin) Gelatin ... 0.45

Third Layer (UV Absorbing Layer) Gelatin ... 0.45 UV Absorber (Cpd-1) ... 0.01 UV Absorber (Cpd-8) ... 0.02 UV Absorbent (Cpd-9) ... 0.06 UV absorber (Cpd-10) ... 0.03 Holimer (Cpd-11) ... 0.05

Fourth Layer (Red Sensitive Layer) Silver chlorobromide emulsion spectrally sensitized with a red sensitizing dye (ExS-11) (Br: 25%, 0.2 μ) ... 0.50 Gelatin ... ... 1.50 Yellow coupler (ExY-1) ... 0.52 Magenta coupler (ExM-1) ... 0.25 Color image stabilizer (Cpd-21) ... 0.09 Color image stabilizer (Cpd-4) ... 0.12 Color image stabilizer (Cpd-22) ... 0.01 High boiling point solvent (Solv-1) ... 0.25 High Boiling point solvent (Solv-2) 0.07 High boiling point solvent (Solv-3) 0.14 Compound (Cpd-23) 0.04

Fifth layer (intermediate layer) Gelatin ... 0.90 Color mixing inhibitor (Cpd-3) ... 0.04 UV absorber (Cpd-1) ... 0.02 UV absorption Agent (Cpd-8) ... 0.04 UV absorber (Cpd-9) ... 0.12 UV absorber (Cpd-10) ... 0.06 Polymer (Cpd-11) ... 0.10

Sixth Layer (Green Sensitive Layer) Silver chlorobromide emulsion spectrally sensitized with a green sensitizing dye (ExS-12, 13) (Br: 30%, 0.2 μ) ... 0.50 Gelatin・ ・ ・ 1.20 Cyan coupler (ExC-1) ・ ・ ・ 0.23 Cyan coupler (ExC-2) ・ ・ ・ 0.25 Yellow coupler (ExY-1) ・ ・ ・ 0.60 color Image stabilizer (Cpd-1) 0.08 Color image stabilizer (Cpd-9) 0.04 Color image stabilizer (Cpd-10) 0.07 Color image stability Agent (Cpd-21) ... 0.12 Polymer (Cpd-13) ... 0.17 High boiling solvent (Solv-2) ... 0.19 High boiling solvent (Solv-1) ... 0.23

7th layer (intermediate layer) Gelatin ... 0.90 Color mixing inhibitor (Cpd-3) ... 0.08 UV absorber (Cpd-1) ... 0.01 UV absorption Agent (Cpd-8) ... 0.02 UV absorber (Cpd-9) ... 0.06 UV absorber (Cpd-10) ... 0.03 Polymer (Cpd-11) ... 0.05

Eighth Layer (Blue Sensitive Layer) Silver chlorobromide emulsion spectrally sensitized with a blue image-sensitizing dye (ExS-14) (Br: 80%, 0.5 μ) ... 0.47 gelatin ..・ ・ ・ 1.40 Cyan coupler (ExC-1) ・ ・ ・ 0.25 Cyan coupler (ExC-2) ・ ・ ・ 0.28 Magenta coupler (ExM-1) ・ ・ ・ 0.15 Color image stability Agent (Cpd-1) ... 0.04 Color image stabilizer (Cpd-9) ... 0.05 Color image stabilizer (Cpd-10) ... 0.07 Color image stabilizer ( Cpd-4) 0.12 Color image stabilizer (Cpd-22) 0.01 Polymer (Cpd-13) 0.20 High boiling solvent (Solv-2)・ ・ 0.35 High boiling point solvent (Solv-3) ・ ・ ・ ・ 0.16 9th layer (Irradiation prevention Postal layer) Gelatin ... 0.50 anti-irradiation dye (Dye-1, 2, 3, 4 a 10:10:13: 1: 5 molar ratio) ... 0.04

10th layer (protective layer) Gelatin ... 0.50 Colloidal silver emulsion (0.02 μ) 0.20 Surfactant (Cpd-14) 0.06 Hard film Agent (H-1) ... 0.25

In each silver halide emulsion layer, the blue-sensitive layer ^contained 4.0 × 10 ^-6 mol, the green-sensitive layer contained 3.0 × 10 ^-5 mol, and the red-sensitive layer ^contained 1. 0 × 10 ^-5 mol of C
pd-24 was added. In addition, in the blue and green layers,
1.2 × 10 ^-2 mol per mol of silver halide blue-sensitive layer, a 1.1 × 10 ^-2 mol of Cpd-16 in the green-sensitive layer was added.

Further, in each layer, sodium dodecylbenzene sulfonate as an emulsifying dispersion aid, ethyl acetate as an auxiliary solvent, Cpd-17 as a coating aid, and potassium polystyrene sulfonate as a thickening agent were used. An example of the photosensitive emulsion of the present invention is a negative type. The chemical formulas of the related drugs are shown below.

[0117]

Embedded image

[0118]

Embedded image

[0119]

Embedded image

[0120]

[Chemical 4]

[0121]

Embedded image

[0122]

[Chemical 6]

[0123]

[Chemical 7]

100 mm × 1 on a transparent borosilicate glass (30 cm × 30 cm) with a thickness of 1.1 mm as a light transmissive substrate.
50 mm x 4 filter surfaces, each 25 mm outside
Prepared with a frame edge, gelatin and colloidal silica (average particle size 7 to 9 mμ) were mixed in a weight ratio of 1: 3 to the filter surface, and saponin was added as a surfactant. The material was partially applied. The coating thickness of the dry film was 0.2μ.

The tenth layer of the above color light-sensitive material was brought into close contact with the coating surface of this light-transmitting substrate as an adhesive layer. At this time, some moisture was applied to the emulsion surface of the light-sensitive material. After that, a laminator whose temperature was set so that the temperature of the contact surface was about 130 ° C. was used and the particles were passed at a linear velocity of 0.45 m / min.
At that time, it is preferable to make a cut in advance in the color photosensitive layer corresponding to the boundary between the coated portion of the adhesive layer and the uncoated frame edge portion with a knife or the like, and then superimpose it on the substrate.

After laminating and cooling to about room temperature, the flexible support was peeled off. No white spots were observed because the emulsion surface was uniformly adhered to the portion corresponding to the filter layer on the substrate surface. Further, the color emulsion at the frame edge portion not coated with the adhesive layer is peeled off together with the support, or otherwise washed off with water or warm water as a detergent.

Next, a color filter mask consisting of a blue portion, a green portion, and a red portion was superposed from the emulsion surface side on the substrate having the emulsion layer prepared as described above, and pattern exposure was performed using tungsten light. It was dipped in a hardening fluid at 38 ° C. for 3 minutes for pre-hardening treatment. Next, after washing with water at 35 ° C for 1 minute, the exposed substrate is color-developed and desilvered according to the following steps, and a color filter that develops B, G, R three colors and black is produced in one operation. did.

(Processing step) (Temperature) (Time) Color development 38 ° C. 2 minutes 30 seconds Bleach fixing 38 ° C. 1 minute Water wash-2 35 ° C. 1 minute Water wash-3 35 ° C. 1 minute Water wash-4 35 ° C. 30 seconds Dry 80 ° C. 1 min (rinsing 2,3,4 was a 3 tank countercurrent system from 4 to 2.) (color development bath was N ₂ bubbles, the bleach-fixing circulate liquid air as bubbles.)

The composition of each processing liquid is as follows. Color developer Water 800 ml Ethylenediaminetetraacetic acid 3.0 g 4,5-Dihydroxybenzene-1,3-disulfonic acid disodium salt 0.5 g Triethanolamine 12.0 g Potassium chloride 6.5 g Potassium bromide 0.03 g Potassium carbonate 27.0 g Fluorescent brightener (WHITEX4 manufactured by Sumitomo Chemical Co., Ltd.) 1.0 g Sodium sulfite 0.1 g Disodium-N, N bis (sulfonatoethyl) hydroxylamine 5.0 g Triisopropylnaphthalene (β) sodium sulfonate 1 g N-ethyl-N- (β-methanesulfonamidoethyl) -3-methyl-4-aminoanilino / 3/2 sulfuric acid monohydrate 5.0 g Water was added to 1 liter pH (25 ° C) = 10.0 Bleach-fixing solution Ethylenediaminetetraacetic acid 5.0g Ethylenediaminetetraacetic acid・ Ferric ammonium 55.0 g Ammonium thiosulfate (750 g / liter) 160 ml Ammonium sulfite 40.0 g Ammonium nitrate 10.0 g Water is added to 1 liter pH (25 ° C.) = 6.0 Wash water Deionized water with conductivity of 5 μS or less

As described above, four color filters for liquid crystal were prepared. The resulting color filter has an absorbance of each of cyan, magenta, and yellow components of 0.9 to
The absorbance of B, G, R of 1.6 and each component is 2.2.
It had a black pattern of 2.9, and was free from white spots and color bleeding.

(Example-9) The same formulation as in Example-8,
Specifications of polyethylene terephthalate film 100 μm
A 10-layer color photosensitive material having a release layer of 0.5 g / m of hydroxyethyl cellulose interposed thereon was used as a light-transmissive substrate, and borosilicate glass 300 mm × 400 mm × 1.
A color filter layer of 100 mm × 150 mm × 4 places is prepared on 1 mm, each having a frame edge of 25 mm, and an adhesive consisting of gelatin and colloidal silica and a dry film of 0.2 μm are formed on the color filter surface. Example-1,-
2, -3, -4, -5, -6, or -7) by thermocompression bonding to the coated surface, and after cooling, the polyethylene terephthalate film 100 μm of the support is peeled off, and an adhesive layer is applied. It was peeled off together with the color photosensitive layer in the frame edge portion which was not formed.

Next, after the exposed color photosensitive layer was patternwise exposed, color development processing and desilvering processing were carried out to obtain 4 faces of color filters on the substrate, and then (Example-1,
(2, -3, -4, -5, -6, or -7)), an overcoat layer is partially coated on the color filter by the partial coating method to form a color filter. Obtained.

The obtained color filter has a black pattern in which the absorbances of cyan, magenta, and yellow components are 1.0 to 1.7, B, G, and R, and the absorbance of each component is 2.3 to 2.7. And there was no white spot or color bleeding.

[0134]

According to the method of partial coating and the method of manufacturing a color filter of the present invention, a single substrate having an insulating portion where the substrate surface for providing electrodes and the like is exposed at the frame edge portion of the color filter. It is possible to fabricate one or more color filters at the same time, which not only improves performance but also increases productivity.

[Brief description of drawings]

FIG. 1 is a top view of an example of dimensions when a plurality of color filters are provided on a light-transmitting substrate used in the present invention.

FIG. 2 is a side view of an embodiment of a napkin applicator of the napkin application method or partial application method using the present invention.

FIG. 3 is a side view (A) and a partially enlarged side view (B) of an embodiment of a bleeding applicator used in the present invention.

FIG. 4 is a side view of an embodiment of a coating method or a partial coating method using a bar coater used in the present invention.

FIG. 5 is a perspective view of an embodiment of a coating bar of a partial coating method using a bar coating device used in the present invention.

FIG. 6 is a side view of an embodiment of a bar applicator used in the present invention.

FIG. 7 is a side view of an embodiment of a gravure coater, flexographic relief plate, offset plate, etc. used in the present invention.

FIG. 8 is a side view showing an embodiment of the blade applicator used in the present invention.

[Explanation of symbols]

 1 Substrate ≒ (Film-shaped mask) 2 Part requiring application (color filter layer part) 20 Napkin applicator 22 Applicator member 23 Electromagnetic on-off valve 24 Constant-head coating liquid tank 26 Coating liquid 30 Bleed-out coating device 32 Coating member 33 Electromagnetic on-off valve 34 Constant-head coating liquid tank 35 Internal member 36 Coating liquid 40 Bar coating device 41 Coating bar 42 Dam member 43 Coating liquid supply port 44 Pass roller 45 Backing roller 46 Coating bar 48 Coating liquid 49 Liquid pool 51 Gravure cylinder 52 Rubber-coated backup roller 53 Doctor 54 Coating liquid tank 55 Cell 60 Blade applicator 61 Blade

Claims (5)

[Claims] 1. A mask having an opening provided only on a portion to be coated is placed on a substrate to be transported, and a napkin coating method, a bleeding coating method, a bar coating method or a blade coating is applied from above the mask. Partial coating method characterized by applying by a method. 2. A mechanism for bringing a napkin applicator, a bleeding applicator, or a bar applicator into contact with a substrate to be conveyed, the substrate and / or the napkin applicator, the substrate and / or the oozing applicator, The substrate and / or bar applicator or the substrate and / or blade applicator is moved up and down relative to the application position line, and a necessary portion is adjusted while adjusting the application liquid supply amount in accordance with the application position line. A partial coating method characterized in that the coating is performed only on the surface. 3. A gravure cylinder, a flexographic relief printing plate, or an offset printing plate having an uneven surface corresponding to a portion to be coated on a substrate to be conveyed is brought into contact with the substrate, and an adhesive coating solution for a color filter or a color is applied only to the required portion. A partial coating method comprising applying an overcoat coating liquid for a filter. 4. A color light-sensitive material having a color light-sensitive layer provided on a support via a release layer, and a light-transmitting substrate coated with an adhesive layer only on a portion corresponding to a color filter, with the support surface facing outward. The remaining color photosensitive material is peeled off from the substrate, leaving only the color photosensitive layer bonded to the adhesive layer, and the remaining color photosensitive layer is exposed in a pattern, followed by color development processing and desilvering processing. A method for producing a color filter, which is carried out to obtain a color filter on the substrate, wherein the adhesive layer is provided by the partial coating method according to any one of claims 1 to 3. . 5. A color light-sensitive material having a color light-sensitive layer provided on a support via a release layer, the light-transmitting substrate coated with an adhesive layer only on a portion corresponding to a color filter, with the support surface facing outward. Adhesion, peeling off the remaining color photosensitive material from the substrate leaving only the color photosensitive layer bonded to the adhesive layer, exposing the color photosensitive layer in a pattern, and then performing color development and desilvering, A method for producing a color filter, which comprises obtaining a color filter on the substrate and then partially coating an overcoat layer on the color filter, wherein the overcoat layer is formed.
Item 2. A method for producing a color filter, which is provided by the partial coating method according to any one of items.