JPH091993A - Marking sheet and manufacture of multi-color mark using that - Google Patents

Abstract

PURPOSE: To obtain a marking sheet and its manufacturing method wherein a multi-color mark can be manufactured by one time cutting and one time heat fixing by pressure. CONSTITUTION: In a marking sheet 6 wherein a film 4 constituted by laminating successively at least two color layers 21, 22, and a heat adhesion layer 3 capable of adhering temporarily in this order from a base material 1 side is provided onto the base material 1, the marking sheet is so constituted that the interface between the base material 1 and the color layer 21 in contact therewith, and the interface between the color layers 21, 22 are separable, and the interface between the color layers 21, 22 comes difficult to be separated by heat fixing by pressure.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a marking sheet capable of producing a multicolor mark by one cutting and one thermocompression bonding and a method for producing the multicolor mark.

[0002]

2. Description of the Related Art In a conventional transfer sheet, the support is a release paper, or
It was a method of transferring using a film with a weak tackiness adhesive called an application film (JP-A-2-196693, JP-A-3-45672, JP-A-3-244682, and JP-A-6-55734). Etc.). However, these methods have a drawback that operations such as alignment become very complicated, and many transfer defects occur.

In order to remedy such drawbacks, a marking sheet in which a coloring layer and a thermal adhesive layer are sequentially laminated on a plastic film support has been proposed and has been widely used in recent years. This marking sheet can be attached by a simple method, and since a transparent or semi-transparent plastic film is used as a support, the work such as alignment becomes very easy. Furthermore, when a stretchable material such as urethane is used, the stretch of the fabric made of fibers is well followed, so that it has come to be used as a number for sportswear.

However, in the case of producing a multicolor mark having an edge, after cutting the marking sheet of the color of the edge portion into a desired pattern, it is thermocompression-bonded to the adherend, and then different from the edge portion. It was necessary to repeat the operation of cutting the color marking sheet into a size different from that of the edge portion, superposing it on the edge portion, and thermocompression-bonding it again for each color. Further, there is a problem that air bubbles enter into the overlapped portions during such work, or misalignment occurs so that the contour portion is unsharply formed, which significantly reduces the commercial value.

There are also cases where a multicolor mark is produced by a method such as silk printing, but since a pattern or the like is printed in advance on the conventional transfer sheet, the user can select from the given print pattern or the like. However, there is a drawback that the transfer sheet can only be used to select a desired one, and the application or versatility of the transfer sheet is narrow. In addition, in the case of a transfer sheet such as a multi-color silk screen printing, in order to produce an original mark, it is necessary to print a large amount from the viewpoint of cost and the like. There was a problem that it was not done at all, and it was practically impossible to make an original mark only for oneself.

In order to improve the above-mentioned problems, the inventors of the present invention have made various studies on the sticking method, the materials to be used, etc. By using a marking sheet in which adhesive layers are sequentially laminated, it was found that a simple operation of one cutting and one thermocompression bonding makes it possible to obtain a multicolored mark in which a desired color is not misaligned. The invention was completed.

[0007]

SUMMARY OF THE INVENTION The present invention provides a method for manufacturing a semiconductor device comprising the steps of:
By using a marking sheet provided with a film in which at least two colored layers and a heat-adhesive layer capable of temporary adhesion are sequentially laminated in order from the side of the support, a desired color can be obtained, and multicolor can be obtained by a simple operation. The mark is obtained.

In the marking sheet 6 of the present invention, as shown in FIG. 1, a coating 4 composed of a first coloring layer 21, a second coloring layer 22 and a heat-adhesive layer 3 which can be temporarily adhered is sequentially formed on a support 1. It has a laminated structure. In addition, although the colored layer is composed of two layers in FIG. 1, any number of colors can be expressed by stacking the colored layers according to the number of colors to be used. Even if it has three or more colored layers, it is composed of two layers,
Since the manufacturing method is almost the same, in the following description, the case of two colored layers will be taken as an example.

In the method for producing a multicolor mark of the present invention, the following steps (1) to (4) are sequentially performed using the marking sheet 6 (FIG. 4) of the present invention described above.

(1) The coating 4 is cut from the side of the thermal bonding layer 3 of the marking sheet 6 which can be temporarily bonded without cutting the support 1 (FIG. 5). (2) At least the temporary adhesive heat-bondable layer 3 of the unnecessary portion is peeled off (FIG. 6), and the temporary adhesive heat-bondable layer 3 (desired pattern portion) is provided with tackiness. (3) The heat-adhesive layer 3 capable of temporary adhesion and the adherend 7 are superposed so as to face each other and temporarily adhered to the adherend (FIG. 7), and the support 1 and, if necessary, the coloring layer of unnecessary portions are peeled off. Remove (FIG. 8). (4) At least one of the colored layers of the portion whose color is to be changed
The layer 21 is peeled off entirely or partially (FIG. 9) and thermocompression bonded (FIG. 10).

In addition to this, in the step (2), there is also a method in which the unnecessary portion is not peeled off, the unnecessary portion is masked, and the adhesiveness is given only to the desired pattern portion.

According to this method, at least the heat-bonding layer 3 capable of temporarily adhering the unnecessary portion is peeled off to prevent the film 4 of the unnecessary portion from being transferred to the adherend 7. Also,
By removing and removing the entire film 4 of the unnecessary portion, the contour of the pattern to be attached can be confirmed at the stage before the attachment after the temporary attachment. Further, after temporarily adhering, the support and, if necessary, an unnecessary portion of the coloring layer are peeled off and removed, and at least one of the coloring layers of the portion whose color is to be changed while observing the mark as a normal image
A multicolor mark is obtained by peeling off the layer.

A desired multicolor mark can be easily produced by such a method. However, when the colored layer is softened and melted during thermocompression bonding, the heat resistance and the releasability of the colored layer from the colored layer are improved. It is advisable to place a piece of paper, film or the like on the colored layer and then perform thermocompression bonding.

Next, the marking sheet of the present invention will be described in detail.

As the support 1, paper, synthetic paper, resin-impregnated paper or the like can be used, but a substantially transparent or translucent plastic film such as polypropylene, polyvinyl chloride, polystyrene, polycarbonate, polyethylene terephthalate, polyethylene na. It is desirable to use phthalate or the like. If the support 1 is transparent or semi-transparent, it is easy to perform alignment when temporarily adhering to an adherend after cutting and peeling off the unnecessary portion of the film 4. Therefore, the transparency of the support 1 should be such that the position of the adherend can be confirmed.

A glossy image can be obtained if the surface of the support 1 on the laminated side is smooth, and a matte image can be obtained by using a roughened support.

Further, when cutting with a cutting plotter or the like, it is possible to cut out accurately without slippage, and to prevent blocking between the non-laminated side of the support 1 and each layer during the manufacturing process, non-laminated The surface of the side support may be matted by sandblasting or the like.

The thickness of the support 1 is not particularly limited, but it is better not to be too thin in view of workability when cutting or peeling off the film 4 of an unnecessary portion. Therefore, it is better not to be too thick. For this reason, it is generally 25 to 2 although it depends on working conditions and materials.
The one having a thickness of about 50 μm is used.

Furthermore, after cutting, the unnecessary portion of the film 4 is peeled off from the support 1, or the support 1 is peeled off from the marking sheet 6 in order to change the color by temporarily adhering to the adherend, Appropriate adhesion with the first colored layer 21 is required. Therefore, depending on the support used, it is preferable to subject the support to an appropriate release treatment or undercoating treatment. In particular, as the undercoating treatment, if a natural or synthetic rubber-based material having low tackiness is used, the coating film does not fall off after cutting, and if the coating film 4 is accidentally peeled off, it can be re-bonded. When performing these undercoating treatments, it is preferable that the undercoating layer remains on the support 1 side after peeling. However, an undercoat layer having no tack can be left on the first colored layer 21 side in order to prevent tacking or blocking of the colored layer surface after sticking.

For the first colored layer 21 and the second colored layer 22, a resin or resin solution having film forming properties, in which a dye, a pigment, a metal powder or the like is dispersed or dissolved, is used. As the resin, vinyl chloride resin, vinyl acetate resin, vinylidene chloride resin, cellulose resin, polyester resin, urethane resin, polyamide resin, polystyrene resin, acrylic resin, olefin resin, nitrile rubber, etc. One kind or two or more kinds of resins can be used. In addition, when used by being attached to a cloth, a resin having flexibility to follow the elongation of the cloth and having water resistance so as not to be peeled off by washing or the like is preferably used. Among the resins, Urethane resins are particularly preferable.

It is preferable that the first colored layer 21 and the second colored layer 22 have a performance such as a slight adhesiveness such that the layers are not separated when they are cut between the adjacent layers. The adhesiveness is such that the layers between the colored layers and the layer between the heat-adhesive layer 3 that can be temporarily adhered and the second colored layer 22 that is in contact with the layers do not peel off or fall off when cut, and
Work is easily performed when peeling between the layers of the colored layers where the color is desired to be changed or between the non-sticking portion (unnecessary portion) of the temporarily adhesive heat-adhesive layer 3 and the second colored layer 22 in contact therewith. It is preferably as high as possible. If a layer that does not have a slight adhesiveness between the colored layers is used, for example, as shown in FIG. 2, the adhesiveness between the first colored layer 21 and the second colored layer 22 is slightly reduced. You may provide the adhesive layer 5 which has. Further, other than the above, a method may be used in which the layers between the colored layers are not separated by an operation such as cutting.

Furthermore, it is preferable that the layers between the colored layers and the layer between the heat-bonding layer 3 capable of temporary bonding and the second color layer 22 in contact with the layer are firmly bonded after thermocompression bonding. As a method of firmly adhering after thermocompression bonding, for example, the colored layer (the first colored layer 21 or the second colored layer 22) is made of a material that is slightly melted by the heat at the time of attachment, and the colored layers are mutually bonded by thermocompression bonding. There may be mentioned a method of firmly melting and adhering the heat-adhesive layer 3 capable of temporary adhesion and the second colored layer 22 in contact therewith.

The thickness of the first colored layer 21 and the second colored layer 22 is such that the coating film strength is not lost, and after the application, the color of the underlying colored layer and the pattern of the adherend. The thickness is preferably such that the above can be concealed, and from the viewpoint of cutting property, peeling property, productivity, etc., 5 to 150 μm is preferable.

The first colored layer 21 and the second colored layer 22 are usually mixed with dyes or pigments for coloring. However, if a metal thin film layer or the like is provided above or below the colored layers, the dyes are added to the colored layers. It may be colorless without mixing a pigment or a pigment, and the colored layer may be replaced with a metal thin film layer or the like.

It is also possible to use a transparent resin for the first colored layer 21 in contact with the support 1 and to give the mark originality by applying a pattern to the first colored layer 21 or coloring it with a dye. It is possible. For example, the first colored layer 21
Are colored with a fluorescent dye, and the second colored layer 22 is colored with a white pigment, whereby a brighter fluorescent color mark can be produced.

Further, when a cloth made of fibers whose dyes are easily sublimated by heat during thermocompression bonding is used as an adherend, a barrier is applied so that the dye is not dyed in the colored layer and the color tone of the mark is not changed. Layers can also be provided (Japanese Patent Laid-Open No. 7-83200).
No. 26479). This barrier layer may be provided anywhere, but since the unnecessary coloring layer is peeled off and removed, it is particularly effective if it is provided between the heat-adhesive layer 3 that can be temporarily adhered and the second coloring layer 22 that is in contact therewith. is there.

The adhesive layer 5 used in the above may be any substance having a slight adhesive property at room temperature, and it is necessary for the adhesive layer 5 to firmly adhere the colored layers after thermocompression bonding. Further, those having water resistance are preferable so as not to be peeled off by rain or washing. For example, various types such as rubber-based resins, acrylic-based resins, urethane-based resins, ethylene / vinyl acetate-based resins, styrene / isoprene-based resins, and other organic solvents or aqueous solutions, and water dispersions can be used.

The adhesive layer 5 is preferably one that remains on the side of the colored layer to be peeled off and is removed together with the colored layer when peeling between the colored layers at the portions whose color is desired to be changed. It is also possible to put a curing agent in a microcapsule, mix it with a resin, and apply pressure to break the microcapsule to cure it. Furthermore, beads made of acrylic or the like may be added to the resin, and the adhesive amount may be adjusted by changing the addition amount of the beads.

For the heat-bonding layer 3 that can be temporarily bonded, it is advisable to select a material having good adhesion depending on the type of the adherend. Normally it does not have tackiness, but due to external factors such as moisture and heat,
Any substance can be used as long as it exhibits strong adhesiveness, and it is preferable that it is not transferred to the adherend when it is peeled off after the temporary adhesion to the adherend and when it is desired to change the place of sticking. For example, polyvinyl alcohol resin, polyvinyl ether resin, cellulose resin, polyester resin, polyurethane resin, polyamide resin, EVA (ethylene-vinyl acetate copolymer) resin, polyolefin resin, vinyl copolymer, One or more of polyamide-based resins, epoxy-based resins, phenol-based resins and the like are used. Further, when used by being attached to a cloth, a resin having flexibility to follow the elongation of the cloth and having water resistance so as not to be peeled off during washing is preferably used. Among these, a polyurethane resin is particularly preferable.

When the tackiness is developed by heat, the layers between the colored layers and the layer between the heat-adhesive layer 3 which can be temporarily adhered and the second colored layer 22 which is in contact with the layer are not melted by heat and peeling is difficult. , The melting point and softening point of the colored layer, those exhibiting tackiness at a temperature lower than the temperature at the time of thermocompression bonding,
It is preferable to use a material that does not exhibit tackiness even when the temperature is high. For example, when the temperature at the time of thermocompression bonding is about 160 ° C., it is preferable that the adhesiveness is exhibited at a temperature of about 40 ° C. to 140 ° C.

The heat-adhesive layer 3 which can be temporarily adhered may contain a colorant, if necessary.

When the heat-bonding layer 31 that cannot be temporarily bonded is used, as shown in FIG.
May be laminated to form the heat-bonding layer 3 that can be temporarily bonded.

As the film thickness of the heat-bonding layer 3 which can be temporarily bonded,
Although it depends on the adherend, if the adherend is a fiber product such as clothing, it can be adhered if it is 10 μm or more. In order to improve the adhesive strength, it is preferable that the film thickness is thick, but if it is too thick, it may cause inconvenience in cutting property, productivity, etc., and therefore, it is preferably 200 μm or less.

The temporary adhesive layer 32 used in the above may be a substance which does not normally have tackiness, but exhibits strong tackiness due to external factors such as moisture and heat,
It is preferable that the temporary adhesive layer does not transfer to the object to be adhered when it is temporarily adhered to the object to be adhered and then peeled off when it is desired to change a place to be adhered. For example, polyvinyl alcohol resin, polyvinyl ether resin, water-soluble resin such as cellulose resin, polyester resin, polyurethane resin, polyamide resin, EVA (ethylene-vinyl acetate copolymer)
Examples include hot-melt resins such as resin and polyolefin resin.

Next, the marking sheet of the present invention will be described in more detail using the method for producing a multicolor mark of the present invention in which the following steps (1) to (4) are sequentially performed.

(1) The coating 4 is cut from the side of the thermal bonding layer 3 of the marking sheet 6 which can be temporarily bonded without cutting the support 1 (FIG. 5). (2) The unnecessary portion of the film 4 is peeled off and removed from the support 1 (FIG. 6), and tackiness is imparted to the heat-adhesive layer 3 (desired pattern portion) capable of temporary adhesion. (3) The heat-adhesive layer 3 capable of temporary adhesion and the adherend 7 are superposed so as to face each other and temporarily adhered to the adherend 7 (FIG. 7),
The support 1 is peeled and removed (FIG. 8). (4) The first colored layer 2 of the colored layers of the portion whose color is to be changed
1 is peeled off entirely or partially (FIG. 9) and thermocompression bonded (FIG. 10).

In this case, it is preferable that the coating film 4 in the unnecessary portion can be easily peeled and removed after cutting, and further, peeling can be performed between the colored layers in the portions where the color is desired to be changed. That is, before thermocompression bonding, the layers between the support 1 and the first colored layer 21 in contact therewith, and the layers between the colored layers can be peeled off, and it is difficult to peel the layers between the colored layers by thermocompression bonding. It has a feature.

Before thermocompression bonding, the support 1 and the first
If it is difficult to peel off the layer between the colored layer 21 and the colored layer 21, not only the unnecessary portion of the film 4 cannot be peeled off, but also the support 1 cannot be peeled off particularly after temporary adhesion, and a desired pattern cannot be obtained. Also, if the film 4 on the unnecessary portion can be peeled off,
At the stage before sticking, the outline of the sticking pattern can be confirmed. Furthermore, a multicolor mark cannot be obtained unless the colored layers can be separated from each other. At this time, it may be difficult to peel off the interlayer between the heat-bonding layer 3 that can be temporarily bonded and the second colored layer 22 that is in contact with the heat-bonding layer 3. Further, after thermocompression bonding, it is difficult to separate the colored layers from each other. When the colored layers are separated from each other, peeling or the like occurs during use, resulting in a significant decrease in commercial value. This is because it ends up.

Further, in producing a multicolor mark,
The relationship of the adhesive force between the layers will be described in detail.

For the sake of explanation, the adhesive force between the layers will be indicated as follows.

The adhesive force between the support 1 and the colored layer 21 in contact with the support 1. : Adhesive force between the colored layers. : Adhesion between the heat-bonding layer 3 that can be temporarily bonded and the second colored layer 22 that is in contact with the heat-bonding layer 3. : Adhesive force between layers of the heat-adhesive layer 3 capable of temporary adhesion and the adherend 7.

When the unnecessary portion of the film 4 is peeled off from the support 1 after cutting, the relationship of the adhesive force between the layers is preferably ≦≦ (,).
When peeling the support 1 after temporary adhesion (FIGS. 7 to 8),
When it is <, peeling is liable to occur between the colored layers, resulting in poor workability. Further, when peeling between the layers of the colored layers where the color is desired to be changed (FIGS. 8 to 9), when <, the thermal bonding layer 3 that can be temporarily bonded and the second colored layer 22 that is in contact with the thermal bonding layer 3 are temporarily bonded. Peeling is easy, and when <, peeling easily occurs between the adherend 7 and the heat-bonding layer 3 that can be temporarily adhered, and it becomes difficult to separate between the colored layers, resulting in very poor workability.

After thermocompression bonding (FIG. 10), it is preferable that all layers are difficult to peel off.

This is because if the layers are easily peeled off after thermocompression bonding, the layers to be adhered after sticking are likely to be peeled off and the use cannot be endured.

In the above description, the case where the entire film 4 of the unnecessary portion is peeled off has been described, but only the heat-bonding layer 3 capable of temporarily bonding the unnecessary portion (FIG. 11) or the heat-bonding capable of temporarily bonding the unnecessary portion. Layer 3 and at least one colored layer 22
It is also possible to peel off (FIG. 12) to produce a multicolor mark. In this case, it is preferable that the adhesive force between the layers be appropriately adjusted so that the work can be performed easily.

These layers can be laminated by dispersing or dissolving them in a solvent or the like, or by heat-melting them and successively coating and laminating on the support 1. In addition, a colored layer of a desired color (the first colored layer 21 and the second colored layer 22, or the first colored layer 21) is laminated on the support 1 by a known method, while on the temporary support, Thermal adhesive layer 3 for temporary adhesion
Or a desired second layer on the heat-bonding layer 3 that can be temporarily bonded.
The colored layer 22 laminated by a known method is used as a colored layer on the support 1 (second colored layer 22 or first colored layer 21).
Alternatively, a method of laminating and laminating so that the heat-adhesive layer 3 that can be temporarily adhered or the second colored layer 22 on the heat-adhesive layer 3 that can be temporarily adhered face each other is also possible. It is also possible to provide each layer on the support 1 one by one and laminate them by a laminating method.

As a method for applying such a layer, known methods such as a bar coating method, a roll coater method and a curtain flow method, an extrusion method, a hot melt roll coater method and a die coating method can be used. .

[0048]

According to the method for producing a marking sheet and a multicolor mark of the present invention, a desired multicolor mark can be obtained by one cutting and one thermocompression bonding. The step in the portion where the colored layers overlap is almost eliminated by thermocompression bonding to the adherend, and the appearance is very good in use. Further, since the layers are not laminated (thermo-compression bonding twice or more), bubbles do not enter between the layers of the mark.

[0049]

EXAMPLES Next, examples of the marking sheet of the present invention and a method for producing a multicolor mark using the marking sheet will be described.

(Example 1) A transparent polyester film which had been subjected to an undercoating treatment so that the colored layer could be easily peeled off was used as a support, and the coating solution for the first colored layer having the following formulation was applied thereto by bar coating. A first colored layer having a dry film thickness of 20 μm was formed to prepare a sheet A. In the present invention, "%" and "parts" are based on weight unless otherwise specified.

First color layer formulation: (film thickness 20 μm) Urethane resin (solid content 30%) 30.0 parts (Samprene SP-25: Sanyo Kasei Co., Ltd.) Green pigment 0.5 parts Toluol 10.0 parts Isopropyl Alcohol 10.0 parts

Next, another polyester film was coated with a coating solution for a second colored layer having the following formulation by bar coating to form a second colored layer having a dry film thickness of 30 μm.

Second colored layer formulation: (film thickness 30 μm) Urethane resin (solid content 30%) 35.0 parts (Samprene SP-75: Sanyo Chemical Industry Co., Ltd.) Titanium oxide 6.0 parts Dimethylformamide 30.0 parts

On the second colored layer, a coating liquid for a heat-bonding layer capable of temporary bonding having the following formulation was applied by bar coating,
A heat-bonding layer capable of temporary bonding having a dry film thickness of 50 μm was formed to prepare a sheet B.

Preliminary heat-bondable layer formulation: (film thickness 50μ
m) Urethane resin (solid content 25%) 56.0 parts (Nipporan 3110: Nippon Polyurethane Industry Co., Ltd.) Toluol 5.5 parts Isopropyl alcohol 5.0 parts

While peeling off the polyester film of the sheet B, the sheet A was laminated so that the colored layers were in contact with each other to obtain a marking sheet as shown in FIG.

The marking sheet thus produced was cut from the heat-adhesive layer side capable of temporary adhesion with a cutter knife blade to peel off and remove unnecessary portions of the film.
Then, the temporary adhesive layer was heated with a dryer to show tackiness in the temporary adhesive layer, and then the temporary adhesive layer was temporarily laminated on the adherend so that the heat-adhesive layer capable of temporary adhesion faces each other, and the support was peeled off. Then, the portion of the first colored layer where the second colored layer was desired to be exposed on the surface was peeled off from the second colored layer.

By thermocompression bonding the sample obtained as described above, a mark composed of two colors, white and green, could be obtained.

(Example 2) A transparent polyester film which had been subjected to an undercoating treatment so that the colored layer could be easily peeled off was used as a support, and the coating solution for the first colored layer having the following formulation was applied thereto by bar coating. A first colored layer having a dry film thickness of 20 μm was formed.

First color layer formulation: (film thickness 20 μm) Vinyl chloride-vinyl acetate copolymer 15.0 parts (Vinylite VYHH: Union Carbide Co.) acrylonitrile rubber 5.0 parts (Nippole 1432J: Nippon Zeon Co., Ltd.) Black pigment 1.0 part Toluol 60.0 parts Methyl ethyl ketone 60.0 parts

On this first colored layer, an adhesive layer coating solution having the following formulation was applied by bar coating to give a dry film thickness of 4.5.
A sheet C was prepared by forming an adhesive layer having a thickness of μm.

Adhesive layer formulation: (film thickness 4.5 μm) Urethane resin 10.0 parts (Pandex T-5265H: Dainippon Ink and Chemicals, Inc.) Methyl ethyl ketone 90.0 parts

Next, another polyester film was coated with a coating solution for a second colored layer having the following formulation by bar coating to form a second colored layer having a dry film thickness of 30 μm.

Second colored layer formulation: (film thickness 30 μm) urethane resin (solid content 30%) 35.0 parts (Nipporan 3038: Nippon Polyurethane Industry Co., Ltd.) titanium oxide 6.0 parts dimethylformamide 30.0 parts

A heat-bonding layer capable of temporary bonding was formed on the second colored layer in the same manner as in Example 1 to prepare a sheet D.

While peeling off the polyester film of the sheet D, it was laminated so that the adhesive layer of the sheet C and the second colored layer of the sheet D were in contact with each other to obtain a marking sheet as shown in FIG.

The marking sheet thus produced was processed in the same manner as in Example 1 to obtain a mark composed of two colors, white and black.

Example 3 A sheet A was prepared in the same manner as in Example 1 on which a transparent polyester film which had been subjected to an undercoating treatment so that the colored layer could be easily peeled off was used as a support.

Then, a second colored layer was formed on another polyester film in the same manner as in Example 1. A coating solution for a thermal adhesive layer having the following formulation was applied on the second colored layer by bar coating to form a thermal adhesive layer having a dry film thickness of 50 μm.

Thermal adhesive layer formulation: (film thickness 50 μm) Urethane resin (solid content 25%) 56.0 parts (Nipporan 5138: Nippon Polyurethane Industry Co., Ltd.) Toluol 5.5 parts Isopropyl alcohol 5.0 parts

Further, a coating liquid for a temporary adhesive layer having the following formulation was applied on the above by bar coating to give a dry film thickness of 10 μm.
A temporary adhesive layer of m was formed to prepare a sheet E.

Prescription of temporary adhesive layer: (film thickness 10 μm) Polyvinyl alcohol resin 10.0 parts (Gothenol NH-26: manufactured by Nippon Synthetic Chemical Industry) water 90.0 parts

While peeling off the polyester film of the sheet E, the sheet A was laminated so that the colored layers were in contact with each other to obtain a marking sheet as shown in FIG.

The marking sheet produced in this manner was cut from the temporary adhesive layer side with a cutter knife blade to remove and remove the coating on unnecessary portions. Next, water was applied to the temporary adhesive layer by spraying, and after the tackiness appeared in the temporary adhesive layer, the temporary adhesive layer was overlaid and temporarily adhered so that the temporary adhesive layer faced, and the support was peeled off. Then, the portion of the first colored layer where the second colored layer was desired to be exposed on the surface was peeled off from the second colored layer.

By thermocompression bonding the sample obtained as described above, a mark composed of white and green could be obtained.

[0076]

EFFECTS OF THE INVENTION The present invention has a structure in which at least two colored layers and a heat-adhesive layer capable of temporary adhesion are sequentially laminated on a support, so that a pattern can be formed by one cutting and one thermocompression bonding. It is possible to obtain a multicolor mark that does not cause misalignment. Further, since the colored layer has a slight adhesiveness, it can be corrected. Further, since the marking sheets themselves are not overlapped as in the conventional case, the texture of the adherend itself is not impaired and the weight is light even when adhered to a large area. In addition, the heat-adhesive layer that can be temporarily bonded does not require a separator because it exhibits adhesiveness due to external factors, and after temporary bonding to the adherend, the workability is very good because the color changes while seeing the mark in the normal image. . Furthermore, when the adherend is a stretchable fabric, by using a specific material for each layer, it follows the elongation of the fabric well, does not peel or break, and adheres without peeling even after repeated washing, etc. The performance of is also very good.

[Brief description of the drawings]

FIG. 1 is a diagram showing an embodiment of a marking sheet of the present invention.

FIG. 2 is a diagram showing another embodiment of the marking sheet of the present invention.

FIG. 3 is a diagram showing another embodiment of the marking sheet of the present invention.

FIG. 4 is a diagram showing one step of a method for producing a multicolor mark of the present invention.

FIG. 5 is a diagram showing one step of a method for producing a multicolor mark of the present invention.

FIG. 6 is a diagram showing one step of a method for producing a multicolor mark of the present invention.

FIG. 7 is a diagram showing one step of a method for producing a multicolor mark of the present invention.

FIG. 8 is a diagram showing one step of a method for producing a multicolor mark of the present invention.

FIG. 9 is a diagram showing one step of a method for producing a multicolor mark of the present invention.

FIG. 10 is a diagram showing one step of a method for producing a multicolor mark of the present invention.

FIG. 11 is a diagram showing one step of a method for producing a multicolor mark of the present invention.

FIG. 12 is a diagram showing one step of a method for producing a multicolor mark of the present invention.

[Explanation of symbols]

1 ... Support 21 ... 1st colored layer 22 ... 2nd colored layer 3 ... Temporary adhesive heat-bondable layer 31 ... Thermal-bonding layer 32 ... ..Temporary adhesive layer 4 ... Film 5 ... Adhesive layer 6 ... Marking sheet 7 ... Adhered material: Between the support and the colored layer in contact therewith Adhesive strength. : Adhesive force between the colored layers. : Adhesion between the heat-bonding layer capable of temporary bonding and the second colored layer in contact with the heat-bonding layer. : Adhesive force between layers of a heat-bondable layer capable of temporary adhesion and an adherend.

Claims (6)

[Claims] 1. A marking sheet comprising a support and a coating formed by sequentially stacking at least two colored layers and a heat-adhesive layer capable of temporary adhesion in this order from the support side. 2. The heat-bonding layer capable of temporary bonding comprises two layers, a heat-bonding layer and a temporary bonding layer.
Marking sheet described. 3. The marking sheet according to claim 1, wherein the colored layers have an adhesive property. 4. An interlayer between the support and a colored layer in contact therewith, and interlayers between the colored layers can be peeled off, and thermocompression makes it difficult to peel off the interlayers between the colored layers. The marking sheet according to claim 1. 5. When the adhesive force between the respective layers is expressed as follows, the relation of the adhesive force between the respective layers is ≦≦ (,) before thermocompression bonding.
Marking sheet described. : Adhesion between the support and the colored layer in contact with the support. : Adhesive force between the colored layers. : Adhesion between the heat-bondable layer that can be temporarily bonded and the colored layer that is in contact with the heat-bonded layer. : Adhesive force between layers of a heat-bondable layer capable of temporary adhesion and an adherend. 6. A marking sheet comprising a support and a coating film formed by sequentially stacking at least two colored layers and a heat-adhesive layer capable of temporarily adhering in this order from the support side. ) To (4) are sequentially performed, and a method for producing a multicolor mark. (1) The coating is cut without cutting the support from the heat-adhesive layer side of the marking sheet which can be temporarily adhered. (2) At least an unnecessary portion of the heat-bondable heat-bonding layer is peeled off to give tackiness to the heat-bondable heat-bondable layer (desired pattern portion). (3) The heat-adhesive layer capable of temporary adhesion and the adherend are superposed so as to face each other and temporarily adhered to the adherend, and the support and, if necessary, an unnecessary portion of the colored layer are peeled off. (4) At least one of the colored layers of the portion whose color is to be changed
The layer is peeled off entirely or partially and thermocompression bonded.