JPH01118481A - Thermal transfer sheet for transferring three-layer structured pattern form and method of manufacturing thereof - Google Patents

Abstract

PURPOSE:To enable a stretchable pattern form to adhere to a film by the action of thermal transfer by integrally heat compacting a solvent mainly incorporating silicone rubber and filling a mold and two kinds of adhesives applied to the solvent. CONSTITUTION:A mold is filled with a solvent mainly incorporating silicone rubber under pressure so as to cover the engraved surface of the mold, and a thermoplastic synthetic resin adhesive having affinity is applied to the surface of the solvent. A hot melt powdered adhesive having affinity relative to the thermoplastic adhesive is spread on the adhesive and is then heat compacted to form a solvent set layer A. A hot melt adhesive is then caused to adhere to the surface of the solvent set layer A to form a adhesive layer B, and furthermore a hot melt powdered adhesive is fused to the surface of the adhesive layer B to form a fused layer C. When these are cooled, a three-layer structure pattern form is completed. This three-layer structure pattern form is then released from the engraved surface of the mold by the action of vacuum in a pattern form releasing process 2 and is then pressed against the surface D of a pet film in a self-adhesive film securing process 3. When a vacuum device is ceased to operate at this point, the surface of the patten form is then allowed to adhere to the surface of the pet film.

Description

Detailed Description of the Invention (Field of Industrial Application) The present invention provides three-dimensional printing on objects that can be thermally transferred (hereinafter simply referred to as fabric) such as sweatshirts, T-shirts, socks, pantyhose, and bags. The present invention relates to a transfer sheet capable of transferring, by a thermal transfer method, a stretchable skewered design mark adapted to the bending and shrinkage of the fabric, and a method for manufacturing the same.

(Prior art) A technique for forming pattern marks on fabric using silicone rubber, etc. is disclosed in Japanese Patent Application No. 102246/1983 (Japanese Patent Application Laid-Open No. 1983-102246).
No. 27893).

However, in order to implement the above invention and form a design mark on the fabric surface, it is necessary to mix silicone rubber, arrange printing equipment, and acquire other printing techniques, and general consumption is limited to implementing the above invention. Therefore, it has been impossible to easily form a three-dimensional and stretchable design pattern on a fabric surface or the like.

The present inventor solved the above-mentioned inconvenience by adding a silicone rubber prepared with a coloring agent, thinner, hardening agent, etc. to a mold in which a desired pattern was engraved so that the above-mentioned pattern could be attached to the fabric surface by a transfer method. , filled with a solvent mainly composed of vinyl chloride, urethane, etc., and a thermoplastic synthetic resin adhesive (
After applying powdered thermoplastic synthetic resin adhesive (Hontomelt powder adhesive) to the coated surface, heat and press it with a heating press tool to harden the solvent and apply pressure to the hardened surface. A pattern mold is formed in the pattern engraving part of the mold, in which a stability layer is formed using a thermoplastic synthetic resin adhesive, and a fusing layer of a powdered thermoplastic synthetic resin adhesive is formed on the surface of the adhesive layer, and the pattern is Attach a water-adhesive paper to the outer surface of the adhesive layer of the powdered thermoplastic synthetic resin adhesive of the mold, take out the pattern mold from the pattern engraving part of the mold, and place it on the opposite side of the surface to which the water-adhesive paper is attached. Paste the adhesive backing of the pet film and pond,
The present invention has provided a method for manufacturing a thermal transfer sheet that can transfer a three-dimensional and stretchable pattern by peeling off the water-adhesive paper (Japanese Patent Application No. 307145/1983). There are various obstacles in the work of taking out the pattern and in adhering the removed pattern to the pent film, etc., which is the mount of the transfer paper, making it difficult to improve productivity.

(Problems to be Solved by the Present Invention) The present invention seeks to solve the above-mentioned problem that general consumers cannot easily form three-dimensional and stretchable pattern patterns on the fabric surface. Even at home, general consumers use fabrics such as trays and T-shirts to create three-dimensional and extremely stretchable fabrics that are mainly made of at least one of silicone rubber, PVC, urethane, acrylic, etc. To provide a transfer sheet on which rich pattern patterns can be attached by a transfer method, and a method for manufacturing the same.

(Means for Solving the Problems) The first invention is a silicone rubber or vinyl chloride prepared by adding a coloring agent, thinner, hardening agent, etc. to the engraved part of a mold that is engraved with a desired pattern and treated with Teflon. , urethane, or acrylic, and apply a thermoplastic synthetic resin adhesive that has an affinity for the solvent to the upper surface of the filled material. After spraying a powdered thermoplastic synthetic resin adhesive that has an affinity with the thermoplastic synthetic resin adhesive, the solvent is cured by heating and pressing with a heat suppression device, and the thermoplastic synthetic resin adhesive is applied to the upper surface of the solvent-cured layer. A stretchable pattern mold having a three-layer structure in which an adhesive layer of a resin adhesive is closely formed and a fusion layer of the powdered thermoplastic synthetic resin adhesive is formed on the upper surface of the adhesive layer is formed in the pattern engraving portion of the mold. a step of peeling off the three-layered design mold from the engraving part of the mold while adsorbing the three-layered design mold using a vacuum; pasting the three-layered design mold on a pet film; A step of releasing the suction force of the post-vacuum and pasting the three-layer pattern pattern on the PET film surface with the fusion layer of hot melt powder adhesive facing up; other than the pattern pattern of the PET film. The basic structure of the invention is a step of scattering and fixing a powder that eliminates the adhesive force of the parts.

In addition, the second invention provides a method in which a solvent containing at least one of silicone rubber, vinyl chloride, urethane, and acrylic as a main component prepared by mixing a colorant, thinner, and a hardening agent is used in the pattern engraving part of the mold. A solvent-cured layer representing a pattern cured by heating and pressing; a thermoplastic synthetic adhesive having affinity with the solvent applied on top of the solvent is heated and pressed in the pattern engraving part of the mold; An adhesive layer of a thermoplastic synthetic adhesive adhered to the upper part of the cured layer; A powdered thermoplastic synthetic resin adhesive having affinity with the thermoplastic synthetic adhesive coated on the upper part of the thermoplastic synthetic adhesive is applied to the mold. a fusion layer of a powdered thermoplastic synthetic resin adhesive formed by heating and pressurizing within the pattern engraving area and tightly adhered to the top of the adhesive layer of the thermoplastic synthetic adhesive; an adhesive layer of the solvent-cured layer and the thermoplastic synthetic resin; The basic structure of the invention is a film attached to the outer surface of a pattern-shaped fusing layer consisting of a thermoplastic resin and a fusing layer of powdered thermoplastic synthetic resin.

(Function) The solvent-cured layer A, which is the main component of the pattern mold, is mainly composed of silicone rubber, etc., and provides stretchability to the three-dimensional pattern pattern.

The adhesive layer C of the hot-melt powder adhesive penetrates into the fabric by heating during transfer, and also combines with the adhesive layer B interposed on the upper surface of the solvent-cured layer A, so that the adhesive layer C, which forms the main body of the fabric and pattern, is cured by the solvent. Firmly adhere to layer A.

In addition, the adhesive layer B on the top surface of the solvent layer A is melted by heating during transfer, reinforcing the adhesive force of the hot melt adhesive layer C.
Increases the adhesive strength between the fabric and the solvent-cured layer A (pattern pattern).

(Example) Hereinafter, an example of the present invention will be described based on FIGS. 1 to 3.

FIG. 1 shows the manufacturing process of a thermal transfer sheet for transferring a three-layer pattern pattern according to the present invention. 4 is a process of fixing the adhesive film, and 4 is a finishing process of the adhesive surface of the film.

In the pattern forming step 1, as shown in Fig. 2, a metal plate, especially an aluminum plate, is first engraved to a depth of 0.1 to 0.5 mm to form a mold, and the engraved surface is treated with Teflon. Apply 1 [Step 1a). Of course, this sculpture may be formed by etching.

Next, a solvent mainly composed of silicone rubber is filled and press-fitted into the engraved surface of the mold using a spatula or skate.
Step 1b).

The solvent whose main component is silicone rubber is in the form of a paste, and is prepared by mixing silicone rubber with a colorant, a hardening agent, a thinner, etc. Note that instead of silicone rubber, vinyl chloride, urethane, and acrylic may be used alone or in combination, and in some cases, gold powder, silver powder, clear, etc. may also be used in combination with these.

After this work is completed, the surface of the above-mentioned silicone rubber-based solvent injected into the engraved surface of the mold is coated with a material that is compatible with the above-mentioned solvent and is generally used as a transfer adhesive in the transfer paper manufacturing industry. Step 1c of applying thermoplastic synthetic resin adhesive
), its surface is coated with a true melt powder, which is also compatible with the adhesive.

Thereafter, the silicone rubber-based solvent press-fitted into the engraved surface of the mold described above is cured by heating and pressing in a similar manner using a heating-pressing tool, and the silicone rubber press-fitted into the engraved surface of the mold is cured. A solvent as a main component is used as a solvent-cured layer A forming the main body of the pattern, and the true melt adhesive is bonded to the surface of the solvent-cured iP9 A as an adhesive layer B, and further,
The above-mentioned true melt powder adhesive is fused to the surface of the adhesive layer B to form a fusion layer C. Then, when this is cooled, it becomes a three-groove pattern pattern having the above structure (step 1e).

At this time, the heat pressing equipment used had a temperature of 70°C to 150°C and a pressure of 10 Kg/dt to 70 K! 7/cII conditions. The pressing surface of the hot pressing device is treated with Teflon.

When the work of forming the pattern mold is completed, next is the pattern mold!
4 In mold step 2, this is peeled off from the engraved surface of the mold. A vacuum is used for this peeling. This vacuum is configured so that a printing plate used for so-called silk screen printing can be attached to and removed from the suction port. Then, in order to peel off the three-layer structure pattern mold from the engraved surface of the mold, the suction port of the vacuum is brought into close contact with the surface of the three-layer structure pattern mold to which the hot melt powder adhesive is fused. .

Then, after the close contact, the vacuum suction device is driven. By this drive, the above-mentioned three-layered design mold is taken out from the engraving surface of the mold while being attracted to the suction port.

After the pattern mold is taken out from the mold in the above state, in step 3 of bonding the adhesive film, the surface of the three-layer pattern pattern (the surface opposite to the adhesive layer of the hot melt powder adhesive) is ) against the separately prepared PET film 9 surface and stop the vacuum suction device. By this stop, the suction force of the vacuum is released from the pattern mold in the three-layer state, and its surface is stuck to the PET film surface.

After the adhesion of the adhesive film is completed, in the film processing and finishing step 4, the adhesive surface of the PET film is stained. That is, in order to prevent parts of the PET film other than the part to which the pattern is attached from sticking to the fabric during transfer, Tancal or Glass Peas E is sprayed and fixed. , get rid of that stickiness. Of course, adhesive paper may be used as a mount instead of the PET film. This creates a transfer paper onto which the above-mentioned design is transferred. In this example, a pattern mold whose main component is silicone rubber was used as an example, but the principle is the same when using PVC, urethane, or acrylic alone or in a mixture of two or more of them instead of silicone rubber. It is.

FIG. 3 is a partially enlarged vertical cross-sectional view of a three-layer structure stretchable pattern mold manufactured by the method invention, in which a solvent containing silicone rubber as a main component was heated and hardened in the mold. A solvent-cured layer A, an adhesive layer B formed by heating a thermoplastic synthetic resin adhesive coated on the upper surface of the solvent at the same time as the solvent is heated in a mold, and a thermoplastic synthetic resin adhesive coated on the upper surface of the adhesive. A fusion layer C in which a plastic synthetic resin powder adhesive is heated and melted at the same time as the solvent is heated in a mold, a film D attached to the lower surface of the solvent layer, and a pattern other than the pattern of the film D. It consists of granular material E fixed to the adhesive surface of the part.

Next, a method of using the transfer sheet according to the present invention will be explained.

To transfer the above-mentioned three-layer pattern pattern pasted on the PET film onto fabric, etc., overlap the surface of the three-layer structure pattern pattern on which the true melt powder adhesive has been applied with the fabric, and use normal thermal transfer. Depending on the method, the transfer is performed by heating and pressing using a heating press.

During this heating and pressing, since the three-layer pattern pattern is adhered to the PET film, the three-layer structure pattern pattern can be easily positioned to be adhered through the PET film. Further, due to the heat suppression by the heat suppressor, the adhesive layer C of the hot melt powder adhesive is further melted and adhered to the fabric etc. in an anchor shape, and is also firmly fused to the adhesive layer B which is the base thereof. At the same time, the adhesive layer B also firmly adheres to the pattern type (solvent) cured layer A. By peeling off the PET film D from the pattern surface after adhesion, a three-dimensional and stretchable pattern pattern is adhered to the fabric surface.

(Effect) In the present invention, a solvent mainly composed of silicone rubber or the like is filled into the mold, two types of adhesives are applied to the upper surface of the mold, and these three are simultaneously heated and compressed to integrate them. Since the pattern mold is formed by the above, a three-dimensional pattern mold can be easily formed, and the pattern mold itself has sufficient elasticity. As a result, as the fabric expands and contracts, the pattern pattern transferred onto the fabric also expands and contracts easily, and peeling of the pattern pattern does not occur at all.

Further, in the present invention, since two types of adhesives are laminated on the upper surface of the solvent-cured layer, the adhesion between the fabric and the solvent layer constituting the three-dimensional pattern mold is significantly improved.

(Hiro) In the first invention of this case, the design mold is released from the mold using a vacuum device, and the released design mold is adsorbed to the blowing port and pressed against the adhesive surface of the sheet, and the sheet is released with the design. It has a structure that fixes it to the mold.As a result, the work of releasing the pattern mold and putting on the sheet can be done extremely smoothly.
It is possible to significantly improve work efficiency.

Furthermore, in the second invention, since the three-layer stretchable design mold is formed in the form of a transfer sheet, the design can be printed without any other equipment as long as there is a heat suppression device. The mold can be fixed onto the fabric,
It is extremely convenient.

As mentioned above, the present invention has excellent practical utility.

[Brief explanation of the drawing]

FIG. 1 is a process explanatory diagram of the present method invention. FIG. 2 is an explanatory diagram of the work contents of the step 1 of forming a three-layer pattern pattern in the present method invention. FIG. 3 is an enlarged partial cross-sectional view of a thermal transfer sheet for transferring a three-layer structure pattern mold according to the present invention. 0 1 Pattern mold formation process 2 Pattern mold release process 3 Film fixing process 4 Process of treating the adhesive surface of the film A Solvent cured layer B Adhesive layer of thermoplastic synthetic resin adhesive C Fusion layer of thermoplastic synthetic concave powder adhesive D Film E Fine particles patent applicant Ivy Hearts Co., Ltd. Representative Nitta delivery

Claims (2)

[Claims] (1) Apply at least one of silicone rubber, vinyl chloride, urethane, or acrylic prepared with a coloring agent, thinner, hardening agent, etc. to the engraved part of a mold that has been engraved with a desired pattern and treated with Teflon. A solvent as a main component is filled, a thermoplastic synthetic resin adhesive having an affinity for the solvent is applied to the upper surface of the filled material, and a thermoplastic synthetic resin adhesive having an affinity for the above-mentioned thermoplastic synthetic resin adhesive is further applied to the upper surface of the applied material. After dispersing a powdered thermoplastic synthetic resin adhesive, the solvent is cured by heating and pressing with a heating press tool, and an adhesive layer of the thermoplastic synthetic resin adhesive is applied on the upper surface of the cured layer of the solvent. forming a stretchable pattern mold with a three-layer structure in which a melting layer of the powdered thermoplastic synthetic resin adhesive is closely formed on the top surface of the adhesive layer within the pattern engraving part of the mold; a step of peeling off the three-layer design mold from the engraving part of the mold while adsorbing the design mold; and releasing the suction force of the vacuum after pasting the three-layer design mold on the PET film; A step of pasting the three-layer pattern pattern on the PET film surface with the adhesive layer of hot melt powder adhesive facing upward; and applying a powder that eliminates the adhesive force of the portions of the PET film other than the pattern pattern. A method for manufacturing a thermal transfer sheet for transferring a three-layer pattern pattern, which comprises a step of spraying and fixing. (2) A solvent mainly composed of at least one of silicone rubber, vinyl chloride, urethane, and acrylic prepared by mixing a colorant, thinner, and hardening agent is heated and pressurized in the pattern engraving part of the mold. a solvent-cured layer representing a hardened design; a thermoplastic synthetic adhesive having affinity with the solvent applied on top of the solvent is heated and pressed in the design engraving part of the mold; an adhesive layer of a thermoplastic synthetic adhesive in close contact with the thermoplastic synthetic adhesive; a powdered thermoplastic synthetic resin adhesive that has an affinity with the thermoplastic synthetic adhesive applied on the top of the thermoplastic synthetic adhesive; a fusing layer of a powdered thermoplastic synthetic resin adhesive formed by heating and pressurizing the adhesive layer; and a fusing layer of the solvent-cured layer, an adhesive layer of the thermoplastic synthetic resin, and a powdered thermoplastic synthetic resin. A thermal transfer sheet for transferring a pattern pattern having a stretchable three-layer structure consisting of a film attached to the outer surface of a pattern pattern fusing layer consisting of.