JPH0441914B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Technical Field) The present invention relates to a method for manufacturing a dry transfer sheet, and particularly to a method for easily and advantageously manufacturing a high quality dry transfer sheet having a transferred image of desired characters, figures, etc. It is about how things can be done.

(Prior art and its problems) Conventionally, dry transfer materials or sheets used for lettering etc. have been used to transfer images or indicia of characters, figures, etc. to be transferred.
It is produced by printing on a predetermined base material sheet using printing ink by screen printing or the like, and then by the action of an adhesive that is applied by printing, spraying, wire bar, etc. The desired instant lettering can be achieved by peeling and transferring it to any receiving surface (Japanese Patent Application Laid-Open Nos. 49-49714 and 49-71).
No. 133111, No. 51-53916, Special Publication No. 57-54313,
Publications such as No. 58-50200 and British Patent No. 954459
No. 959670, etc.).

However, since this method of manufacturing transfer materials requires the use of printing machines and the production of suitable printing plates, screens, and similar materials, implementing this method requires a large amount of capital. and requires a large investment of time.

Therefore, for consumers who cannot afford to invest such funds or time, it is necessary to purchase products made separately by a manufacturer and sold commercially. In addition to having to purchase only unnecessary characters and figures, there is a lot of waste, and the cost per character becomes extremely high.
In some cases, it may even be impossible to purchase the desired graphics or characters because they are not available. Moreover, words, phrases, sentences, etc. need to be picked up one by one from commercially available lettering transfer sheets and transferred while aligning, which is extremely time-consuming and requires layout. It was extremely difficult to achieve a beautiful finish.

In addition, in recent years, another method for producing dry transfer materials has been to expose a photosensitive material to an image and then develop it, thereby separating the transferred image such as a desired figure or character, and transferring it to a carrier or A photographic method for leaving images on the basic sheet has also been proposed (Japanese Patent Application Laid-open No. 1973-
No. 100013, Special Publication No. 57-54313, No. 58-50200,
Publications such as 60-7774 and 61-7959, British Patent Nos. 1079661, 1291960, and 1364627
No. 1441982, etc.).

However, even in the case of this photographic method,
Since it is necessary to expose and develop, an exposure device and a developing device are required, and although it is not as bad as the screen printing method described above, it does have the problem of requiring investment of funds and a large amount of time. There is. In addition, even with this photographic method, consumers cannot create desired letters and figures on their own for lettering, so they must purchase ready-made lettering transfer sheets, and therefore, it is necessary to purchase a ready-made lettering transfer sheet. However, it is unavoidable that the cost per character increases, it is difficult to lay out words, phrases, sentences, etc., and furthermore, it may not be possible to obtain the desired transfer images of figures, characters, etc. , is likewise inherent.

On the other hand, printing devices such as printers, typewriters, and word processors using a thermal transfer method have recently been developed and are now being used widely from small personal computers to business applications. In printing using this thermal transfer method, a thermal transfer ink ribbon is brought into close contact with a predetermined printing paper using a thermal head, and a required heating element among the many heating elements of the thermal head is selectively made to generate heat. By this,
This is done by melting the heat-melting ink portion that is in contact with the heating element via the support of the thermal transfer ribbon and transferring it to printing paper.

Therefore, a desired transfer image is printed on a predetermined base sheet using a printing device such as a thermal transfer printer, typewriter, word processor, etc.
If the desired transfer material for instant lettering is produced by thermal transfer, consumers can easily transfer desired characters, figures, etc. using such a thermal transfer type printing device. Since only the image can be created on a predetermined base material sheet, there is no need for unnecessary characters, figures, etc. unlike conventional ready-made lettering sheets, and therefore waste can be eliminated. The cost per character can be advantageously reduced, and the lettering can be done freely.
Various types of figures can be created, and therefore, various excellent effects can be achieved, such as being able to easily obtain beautiful and waste-free transfer objects.

However, with this thermal transfer method,
When manufacturing dry transfer materials for instant lettering, it is necessary to form an image with excellent heat-sensitive transfer properties and good pressure-sensitive transfer properties on a predetermined base sheet, so conventional heat-sensitive transfer type A method such as a printing device that simply forms an image with excellent thermal transfer properties on a specified printing paper,
It was extremely difficult to obtain a dry transfer material of good quality by applying it as is.

Of course, as a method for producing dry transfer material for instant lettering, the thermal transfer method described above has not been adopted at all so far, so a designated thermal transfer type printing device is used to produce the desired transfer image. Until now, no proposal has been made regarding a method for effectively forming the film on a predetermined base sheet.

(Object of the Invention) The present invention has been made against the background of the above, and its object is to provide a simple and advantageous method for manufacturing a dry transfer sheet for instant lettering. In particular, to enable a user to effectively form a transfer image of desired characters, figures, etc. on a base sheet, and to easily manufacture a high-quality dry transfer sheet. There is a particular thing.

Another object of the present invention is to provide a method for effectively printing and thermally transferring a predetermined transfer image even when the base sheet of a dry transfer sheet is a sheet-like material with poor surface wettability. Our goal is to provide the following.

(Solution Means) In order to achieve such an object, the present invention provides a dry transfer sheet for pressure-sensitively transferring a transfer image such as a desired character or figure to a target portion of a predetermined receptor. In a method for manufacturing a printer, a thermal transfer type printing device having a thermal head provided with a selective heating section consisting of a plurality of rows of heating elements is used, and the heating section of the thermal head is extended from its center to the end of the head. They are arranged so that the distance is 50 to 500 μm, and the following formula: y>1.4×10 ^-4 χ ² +z z=(10α+25)/3 [However, χ=pressing pressure of the thermal head (g) y=ink ribbon Winding torque (gf cm) α=mounting angle of thermal head to base sheet (°) The reason is that the printing and thermal transfer are performed on the sheet.

In addition, in the method for manufacturing a dry transfer material according to the present invention, preferably, χ in the general formula is
It is desirable that the value is in the range of 100 to 500 g, and it is desirable that the above-mentioned α be a value in the range of 0 to 8°.

Further, according to a preferred embodiment of the present invention, the base sheet on which the transferred image is thermally transferred includes:
contact angle with water of at least 95°, preferably
It has a smooth surface with poor wettability of 105° or more, and the ink ribbon used to form such a transferred image is coated with a colorant and a binder on one side of a predetermined film-like ribbon base material. and a pressure-sensitive adhesive, and has a higher viscosity than the ink layer containing a heat-sensitive adhesive resin and a tackifying resin on the ink layer, and It is provided with a transferability adjusting layer having high heat-sensitive adhesive properties, hardness, and cohesive force.

(Specific configuration/effect) As described above, the present invention utilizes printing devices such as thermal transfer printers, typewriters, word processors, etc. whose production volume has increased significantly in recent years.
By printing and thermally transferring a desired transfer image onto a base sheet under specific conditions, the objective is to advantageously produce a desired dry transfer sheet with good printing quality. An example of this is shown in Figure 1. As shown schematically in

That is, in FIG. 1, 11 is a base material sheet on which a transfer image of desired characters, figures, etc. is formed, and a thermal transfer type printing device operated by a user or the like is placed on the base sheet. The desired transfer image is thermally transferred as a mirror image or a real image. More specifically, thermal transfer printers,
Based on a selection command for a transfer image such as a desired character or figure from an input device constituting a printing device such as a typewriter or word processor, the thermal head 13
As is well known, the heating element 14 provided at
Thermal transfer is performed, and a desired transfer image is thus formed on the base sheet 11.

By the way, in the present invention, when a target transfer image is thermally transferred onto the base sheet 11 using such a thermal transfer type printing device, the thermal head 13 of the printing device is shown in FIG. It was configured so that FIG. 2 shows the surface of the thermal head 13 facing the ink ribbon 12, in which a plurality of heating elements 14a, 14b, 14c that selectively generate heat are shown.
A heat generating section 14 consisting of a row of... is arranged closer to the rear end side in the moving direction of the heat sensitive head 13, and from the center of the heat generating section (center of the row) to the rear end of the head. Distance: l is 50~
The thickness is 500 μm, preferably 50 to 250 μm.

In this way, by bringing the heating element 14 of the thermal head 13 to the end of the head, the ink ribbon 12 can be peeled off from the object 11 while the ink is still hot and molten. . This is especially true when performing thermal transfer onto the surface of the base sheet 11 with poor wettability. This is because the adhesive force between the ink and the base sheet 11 is greater than the adhesive force between the ink and the base sheet 11, making it extremely difficult to form the desired transfer image on the base sheet 11. .

Also, the ink ribbon 1 is attached to the base sheet 11.
Pressure pressure of the heat-sensitive head 13 to press 2 (χ: g)
1, the winding torque (y: gf cm) of the ink ribbon 12 in the direction of arrow A as shown in FIG. :°), in the present invention, in order to effectively thermally transfer the intended transfer image onto the base sheet 11, the following formula: y>1.4×10 ^-4 χ ² +z z=( It must be adjusted to satisfy 10α+25)/3.

That is, the surface of the base sheet 11, which is the transfer target, is generally considered to have poor wettability in consideration of the subsequent pressure-sensitive adhesive operation, so the ink on the ink ribbon 12 and the base sheet Therefore, the frictional force between the thermal head 13 and the ribbon base material of the ink ribbon 12 and the frictional force between the thermal head 13 and the ribbon base material of the ink ribbon 12 and the frictional force between the thermal head 13 and the ribbon base material of the ink ribbon 12 and the frictional force between the thermal head 13 and the ink ribbon 12 surface are significantly reduced. ) The pulling force on the ink ribbon 12 becomes larger, causing the problem that even when printing is done, it slips along with the thermal head 13 instead of being wound up.In order to solve this problem, It is necessary to increase the winding force y of the ink ribbon 12 as shown in the above equation.

Regarding the mounting angle α of the heat-sensitive head 13 with respect to the base sheet 11, the surface of the base sheet 11, which is the object to be transferred, is generally coated with silicone resin or the like, which has poor wettability and good mold releasability. Because it is a surface, it is difficult for thermal ink to transfer, and the transferred printed image is also difficult to transfer to the thermal head 13.
In order to prevent such problems, the angle α of the thermal head 13 with respect to the transferred material 11 is generally set between 0 and 8 degrees. It is desirable to make the actual presser pressure as small as possible, preferably from 0 to 5 degrees. Further, for the same reason, it is desirable to make the head presser pressure χ as small as possible, and generally it is 100 to 500 g, preferably 100 to 300 g.

Then, as described above, the desired transfer image thermally transferred onto the base sheet 11 is retransferred (pressure-sensitive transfer) to a target receptor by applying a predetermined pressure from the back side of the sheet. Therefore, it is desirable that the surface of the base sheet 11 to be subjected to thermal transfer has good releasability, in other words, it has poor wettability.

Such a base sheet 11 with good mold releasability has a smooth surface with a contact angle of at least 95°, preferably 105° or more with respect to water, and is preferably made of polyethylene, polypropylene or foam. In addition to using a film made of base resin alone, a predetermined releasable coating layer is formed by coating with silicone resin on the heat-sensitive transfer surface of a film-like base material such as paper, metal foil, or plastic film. , etc. will be suitably used. Incidentally, examples of the plastic film used here include films obtained from polyethylene terephthalate, polyethylene, polypropylene, nylon, polyimide, fluororesin, vinyl chloride resin, polysulfone, polycarbonate, ABS resin, and the like.

Further, in order to facilitate positioning during subsequent pressure-sensitive transfer, it is preferable that the base sheet 11 be transparent or semi-transparent. In particular, it is preferable that the base sheet 11 be transparent or semi-transparent so that it is easy to check whether the transferred image has been transferred or not. It is most preferable to use a sheet, and furthermore, it is desirable that the sheet has appropriate flexibility so that pressure can be easily applied to the transferred image during pressure-sensitive transfer.

Among these, in the present invention, in order to improve the quality of the transferred image during thermal transfer, a base sheet with high surface smoothness and few irregularities is advantageously used, especially for thermal transfer through a platen. 5 to 200 μm, preferably 70 to 150 μm, which can advantageously ensure the required appropriate flexibility
It is desirable to use a sheet having a thickness of

Further, the ink ribbon 12 used for thermally transferring a desired transfer image onto the base sheet 11 is
There is no problem even if it is coated with commonly used wax-based ink, but it has a two-layer structure consisting of a transferability adjustment layer and an ink layer that further improves heat-sensitive transferability and pressure-sensitive transferability. It is preferable to use an ink ribbon of This transferability adjusting layer is provided as a top coat layer on the ink layer, and has higher heat-sensitive adhesiveness, hardness, viscosity, and cohesive force than the ink layer. The heat-sensitive transfer properties to the surface of the material sheet 11 are significantly improved, and in addition, by providing the ink layer with pressure-sensitive adhesive properties, pressure-sensitive transfer of the transferred image formed by heat-sensitive transfer to the receptor is also possible. It can be considered good.

More specifically, regarding the ink ribbon 12, any of the various types of film-like ribbon base materials that support the ink layer that have been conventionally used as base materials for thermal transfer ink ribbons can be used. However, because the heat-sensitive head 13 is brought into contact for heat-sensitive transfer, polyester, polyimide, polycarbonate, polysulfon, etc., which have a heat resistance temperature of 150°C or higher, are used.
A resin film made of polyether sulfon, polyphenyl sulfide, etc., or paper such as capacitor paper, glassine paper, etc. is used as a suitable material, and its thickness is determined as appropriate depending on the type of material. However, it is generally 3 to 20 μm.
It is desirable to use a material with a thickness in the range of .

Further, the ink layer provided on the ink ribbon 12 is mainly composed of a colorant, a binder agent, and a pressure-sensitive adhesive. and,
As the coloring agent, a pigment such as carbon black is mainly used, but an appropriate dye may be added as necessary to adjust the color tone.

The binder agent constituting the ink layer mainly includes vegetable waxes such as candelilla wax, carnauba wax, rice wax, and wood wax; animal waxes such as beeswax, lanolin, spermaceti wax; and montan wax. , mineral waxes such as ceresin; waxes made of one or more petroleum waxes such as paraffin waxes and microcrystalline waxes, and petroleum resins, rosin resins, ketone resins, polyamide resins, phenolic resins, etc. A tackifying agent is used. Furthermore, as the above-mentioned waxes, resin-based waxes such as α-olefin-maleic anhydride copolymer can also be used.Furthermore, the adhesion agent may be used to improve ink adhesion, hardness, cohesive force, etc. It functions to impart adhesive strength and tackiness to pressure-sensitive adhesives. The wax and tackifying agent constituting this binder are generally mixed in a ratio of about 15:1 to 3:2 on a weight basis.

Furthermore, the pressure-sensitive adhesives constituting the ink layer include polyvinyl chloride, polyacrylic ester,
Vinyl polymers such as ethylene-vinyl acetate copolymer, ethylene-ethyl acrylate copolymer, polyvinyl acetate, polyvinyl ether, polyvinyl acetal, polyisobutylene; Fibrous polymers such as ethyl cellulose, nitrocellulose, cellulose acetate; chloride One type or a combination of two or more types of rubber-based polymers such as rubber and natural rubber are used.

In addition, the above-mentioned colorant, binder agent, and pressure-sensitive adhesive that constitute the ink layer are generally in a ratio of 5 to 30:40 to
93: blended at a ratio of about 2 to 30,
The ink composition preferably provides a viscosity of less than 3000 centipoise, particularly about 200 to 1000 centipoise, at a temperature of 95°C. Further, such an ink composition can be dissolved or dispersed in an appropriate solvent to form an ink liquid, or heated and mixed to form an ink, and then applied onto a desired film-like ribbon substrate using known techniques. Coating or hot melt coating will be applied according to the following.

On the other hand, the transferability adjustment layer as a top coat layer formed on such an ink layer has a higher viscosity than that of this ink layer (under thermal transfer conditions).
In addition, it is configured as a layer with high heat-sensitive adhesive properties, hardness, and cohesive force, and is generally made of resins with high film-forming properties and high heat-sensitive adhesive properties, such as ethylene-vinyl acetate copolymer, polyvinyl acetate, and ionomer. , acrylic polymer, ethylene-ethyl acrylate copolymer, ethylene-acrylic acid copolymer, vinyl chloride-vinyl acetate copolymer, polyvinyl butyral, polyvinylpyrrolidone, polyvinyl alcohol, polyamide, ethyl cellulose, etc., or one or two of them. Above all, the cohesive force is large,
It is mainly composed of one or a mixture of two or more of tackifying resins such as petroleum resins, rosins, hydrogenated rosins, rosin esters, ketone resins, and phenolic resins. The heat-sensitive adhesive resin and tack-imparting resin are 1 part by weight of the former and 0.5 to 10 parts by weight of the latter.
It is preferably blended in a proportion of 0.8 to 7 parts by weight.

The composition consisting of a heat-sensitive adhesive resin and a tackifying resin with high film-forming properties can be prepared in the form of an aqueous solution or dispersion, or in the form of a general-purpose organic solvent that does not impregnate the ink layer. In the form of a solution or dispersion, it is coated onto the ink layer to a predetermined thickness according to a normal coating method, and the transferability adjusting layer thus formed is sensitive to The viscosity is higher than that of the ink layer under thermal transfer conditions, generally more than 3000 centipoise, preferably 10000 centipoise at a temperature of 95°C.
This layer has a viscosity of centipoise or higher.

In addition, kaolin and talc are added to the transferability adjusting layer formed in this way in order to adjust the film strength and obtain a sharp printed image, and to prevent staining and blocking. Fillers such as , bentonite, titanium oxide, etc., and organic or inorganic powders such as metal soaps such as zinc stearate and aluminum stearate are blended in a proportion not exceeding 20% by weight and are present in the transferability adjustment layer. It is also possible.

Then, using the ink ribbon 12 obtained in this way, it is set in a predetermined thermal transfer type printing device, and the arrangement of the heating element 14 of the thermal head 13 described above, as well as the presser foot of the thermal head 13 are determined. By performing printing and thermal transfer under the pressure χ, the winding torque y of the ink ribbon 12, and the installation angle α of the thermal head 13, the desired dry transfer material can be advantageously manufactured.

That is, by using such an ink ribbon 12, even if a transfer image such as a desired character or figure is thermally printed onto a film (base sheet 11) having a surface with poor wettability, it will not spread, collapse, or It is possible to realize a high-quality printed image without causing any problems such as shading, scraping by the head, stringiness, yuzu skin, or insufficient transfer.

Furthermore, even if the image printed in this way is pressure-sensitively transferred onto a target receptor such as paper, plastic, metal, etc. by applying pressure from the back side of the film (base material sheet), the film cannot be transferred. There is no residual ink on the surface, and the transferred image can be a good, firmly adhered image that does not collapse, spread, or become brittle.

(Examples) Some examples of the present invention will be shown below to clarify the present invention more specifically, but the present invention is not limited in any way by such descriptions. Needless to say, it no longer exists.

In addition to the following examples and the above-mentioned specific description, the present invention includes various changes, modifications, and changes based on the knowledge of those skilled in the art, as long as they do not depart from the spirit of the present invention. It should be understood that improvements and the like may be made.

Example 1 To form the ink layer and transferability adjustment layer,
An ink and a coating liquid for forming a transferability adjusting layer were prepared as follows. The viscosity of the ink layer formed with this ink is 270 centipoise (95°C), and the viscosity of the transferability adjustment layer formed with this coating liquid is 50,000 to 70,000 centipoise (95°C). ).

Ink layer composition Part by weight α-olefin-maleic anhydride copolymer [Diakaruna 30 manufactured by Mitsubishi Chemical Industries, Ltd.] 2 Candelilla wax [Candelilla wax 2698 manufactured by Chukyo Yushi Co., Ltd.] 3 Microcrystalline wax [ Manufactured by Nippon Seiro Co., Ltd.
Hi-MiC1045] 9 Rosin ester [Superester A-100 manufactured by Arakawa Chemical Co., Ltd.] 2 Ethylene-vinyl acetate copolymer [EVA210 manufactured by Mitsui DuPont Polychemical Co., Ltd.] 2 Carbon black [Mitsubishi Chemical Industries, Ltd. MA- manufactured by Co., Ltd.
7] 2 Methyl isobutyl ketone (solvent) 100 Transferability adjustment layer composition Part by weight Ethylene-vinyl acetate copolymer [EVA210 manufactured by Mitsui Dupont Polychemical Co., Ltd.] 1 Petroleum resin [HiResin # manufactured by Toho Oil Resin Co., Ltd. 90]
5 Methyl isobutyl ketone (solvent) 54 Then, using a 3.5 μm polyethylene terephtate (PET) film as a ribbon base material, ink with the above composition was applied onto the film to a dry film thickness:
After forming an ink layer by coating to a thickness of 6 to 7 μm and drying, a coating liquid for forming a transferability adjustment layer having the above composition is applied on top of the ink layer to a dry film thickness of 1 to 2 μm. The desired ink ribbon was obtained by coating and drying the ink ribbon.

Next, using the thus obtained ink ribbon, it was set in a thermal transfer type printer, and the distance l between the heating element 14 and the end of the head in the thermal head 13 was set to 200 μm, and the head installation angle α: Silicone resin was applied under the conditions of 2°, head pressure χ: 300g, and winding torque y: 30gf・cm (contact angle with water: 108 to 110°).
When printed on a polyethylene film (thickness: 100 μm), a sufficiently beautiful and good quality printed image could be obtained. Furthermore, by rubbing the printed polyethylene film from the back side and applying pressure, the printed image was pressure-sensitively transferred onto the desired surface of paper, plastic, or metal, and the quality was sufficiently good. I was able to complete the statue.

On the other hand, the heating element 14 serves as the thermal head 13.
Similar thermal transfer was carried out under the same conditions as above, except that the ink was placed 1 mm from the end of the head (=l). I couldn't transfer it at all.

Example 2 An ink ribbon similar to that in Example 1 was made using an ink and a coating liquid having the following ink layer composition and transferability adjustment layer composition, and was set in a thermal transfer printer, with a head installation angle α: 8. As a result of conducting a thermal transfer experiment in the same manner as in Example 1 under the conditions of 300 g of head pressure, 300 g of winding torque, and 70 gf cm of winding torque, a beautiful and good quality printed image was obtained. It was also possible to transfer such a printed image onto a desired transfer object as an image of good quality by pressure-sensitive transfer. In addition, the viscosity of the ink layer formed with the ink having the following composition is:
700 centipoise (95°C), and the viscosity of the transferability adjustment layer formed with the coating solution below is 50,000~
It was 70,000 centipoise.

Ink layer composition Part by weight α-olefin-maleic anhydride copolymer [Diakarna 30 manufactured by Mitsubishi Chemical Industries, Ltd.] 8 Candelilla wax [Candelilla wax 2698 manufactured by Chukyo Yushi Co., Ltd.] 5 Rosin ester [Arakawa Chemical Superester A-100 manufactured by Kogyo Co., Ltd.] 2 Ethylene-vinyl acetate copolymer [EVA210 manufactured by Mitsui Dupont Polychemicals Co., Ltd.] 3 Carbon black [MA- manufactured by Mitsubishi Chemical Industries, Ltd.]
7] 2 Methyl isobutyl ketone (solvent) 100 Transferability adjustment layer composition Parts by weight Ethyl cellulose [Reagent manufactured by Kanto Kagaku Co., Ltd., 10 cps]
1 Hydrogenated rosin [Hyperel manufactured by Arakawa Chemical Co., Ltd.] 5 Isopropyl alcohol (solvent) 54 Comparative example 1 Thermal head mounting angle α: 2°, head holding pressure χ:
Under the conditions of 500g and winding torque y: 20gf・cm,
When thermal transfer was performed in the same manner as in Example 1, the ink ribbon 12 was not wound up and was dragged by the thermal head 13, causing heat generation and printing to occur many times at the same location, causing the ink to evaporate. The amount of transfer was insufficient or no transfer occurred at all, making it impossible to produce the intended instant lettering sheet.

(Effects of the Invention) As is clear from the above description, according to the present invention, the heating element of the thermal head in a thermal transfer type printing device is disposed close to the end of the head, and the mounting angle α of the thermal head is By adjusting the head pressure χ and the winding torque y, it is now possible to effectively transfer and print onto a base sheet from a dry transfer sheet, which has a particularly poor surface wettability. The great industrial significance of the present invention lies in the fact that it has become possible to obtain a dry transfer sheet with good print quality that is free from problems such as crushing, spreading, scraping by heads, and insufficient transfer. It exists.

According to the present invention, a user can easily transfer only desired characters, figures, etc. onto a predetermined base sheet using a thermal transfer printer, typewriter, word processor, etc. It goes without saying that since it can be created, there are no unnecessary characters or figures like conventional ready-made lettering sheets, and therefore it is possible to eliminate waste, and the cost per letter is also reduced. It is possible to advantageously reduce the number of transfers, and since the layout can be made freely, it is possible to create various shapes, and therefore it is possible to easily obtain beautiful and waste-free transfer materials. It can also produce excellent effects.

[Brief explanation of drawings]

FIG. 1 is an explanatory plan view showing an example of the dry transfer mode according to the present invention, and FIG. 2 is an explanatory view showing the surface of the thermal head on the side facing the ink ribbon. 11: Base sheet, 12: Ink ribbon, 1
3: Heat sensitive head, 14: Heating element, 14a, 14
b, 14c: heating element.

Claims (1)

[Claims] 1. A method for manufacturing a dry transfer sheet for pressure-sensitive transfer of a transfer image such as a desired character or figure to a target part of a predetermined receptor, comprising a plurality of heating elements. Using a thermal transfer type printing device having a thermal head equipped with a selective heating section consisting of rows of
The heat generating part of the heat sensitive head is arranged so that the distance from the center part to the end of the head is 50 to 500 μm, and the following formula: y>1.4×10 ^-4 χ ² +z z=(10α+25)/3 [ However, χ = pressing pressure of the thermal head (g) y = winding torque of the ink ribbon (gf cm) α = installation angle of the thermal head with respect to the base sheet (°) A method for producing a dry transfer sheet, characterized in that the selected transfer image is printed and thermally transferred from an ink ribbon onto a predetermined base sheet. 2. The method for manufacturing a dry transfer sheet according to claim 1, wherein the χ is a value within the range of 100 to 500 g. 3. The method for manufacturing a dry transfer sheet according to claim 1 or 2, wherein the α is a value within the range of 0 to 8°. 4. The ink ribbon has an ink layer containing a colorant, a binder agent, and a pressure-sensitive adhesive on one side of a predetermined film-like ribbon base material, and a heat-sensitive adhesive resin is placed on the ink layer. and a transferability adjusting layer comprising a tackifying resin and having a higher viscosity than the ink layer, as well as greater heat-sensitive adhesiveness, hardness and cohesive force. The method for producing a dry transfer sheet according to any one of items 1 to 3. 5. The substrate sheet according to any one of claims 1 to 4, wherein the base sheet on which the transferred image is thermally transferred has a smooth surface having a contact angle with water of at least 95°. Method of manufacturing dry transfer sheet.