JPH0412900A - Manufacture of transfer sheet - Google Patents

Abstract

PURPOSE:To make the coating of a transfer layer possible and to extremely facilitate the transfer to a transfer material by coating the upper surface of release pasteboard with an adhesive layer having tack and successively applying and laminating a separation layer composed of ultraviolet curable resin paint, a color layer and a clear layer to the coated surface and subsequently applying a carrier sheet having an adhesive layer bonded to the rear thereof to the upper surface of the release pasteboard having the transfer layer. CONSTITUTION:An adhesive is applied to the upper surface of release pasteboard 1 by an appropriate means such as screen printing to form an adhesive layer 2 and, next, a separation layer composed of ultraviolet curable resin paint 3, a color layer 4 and a clear layer 5 are successively applied and laminated to the adhesive layer 2 by the same means so that the respective layers have thickness of about 0.2mm. Further, a transparent carrier sheet 6 having an adhesive layer bonded to the rear thereof is applied to the entire upper surface of the release pasteboard 1 having a transfer layer at a part thereof.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention makes it possible to apply a clear transfer layer and extremely easily transfer the transfer layer to the transferred object without using heat, solvents, etc. The present invention relates to a method for manufacturing a transfer sheet that can provide excellent friction durability on the transfer surface even after transfer.

[Prior Art] Conventionally, as a transfer means for a transfer layer in a transfer sheet,
There are two types of adhesives: one that is reduced with a solvent containing a solvent-based alcohol to reproduce adhesive properties, and the other that uses a thermoplastic resin as an adhesive and applies pressure using a heat source.

[Problems to be Solved by the Invention] However, in the above-mentioned conventional techniques, first of all, the former uses a solvent, which deteriorates the environment and is likely to have an adverse effect on the human body of the worker.

In addition, in the latter case, the introduction and maintenance of mechanical equipment for heat treatment is costly, and there is also a risk of disasters caused by heat treatment.

Furthermore, it is difficult to apply a transfer layer to the surface of a wet or tacked sticky or adhesive film on a base sheet such as release paper by printing means, and it is difficult to maintain a good application state of the transfer layer. It is not possible to hold the transfer layer, and it dissolves into the adhesive, making it impossible to create a clear transfer layer coating surface (Figure 1 (a) and (b)). It becomes impossible to accurately express minute characters, shapes, etc., and if the paint used for the transfer layer is solvent-based or water-based, it mixes with stickiness and adhesives and becomes a gelatinous state, losing its stickiness and adhesive properties. A problem arose.

The present invention has been made with the aim of improving the drawbacks of the above-mentioned prior art, and by interposing a colored coating layer between the coatings of transparent ultraviolet curable resin coating, it is possible to clearly apply the transfer layer. A method for producing a transfer sheet that allows transfer to an object to be transferred extremely easily without using heat, solvents, etc., and that has excellent friction durability on the transfer surface even after transfer. This is what we provide.

[Means for Solving the Problems] The present invention relates to a method for manufacturing a transfer sheet to achieve the above-mentioned object. Agent layer (2)
and then sequentially apply a separation layer (3), a colored layer (4), and a clear layer (5) made of ultraviolet curable resin paint on the coated surface of the adhesive layer (2). The method is characterized in that a carrier sheet (6) having an adhesive layer attached to the back side is attached to the upper surface of a release mount having a transfer layer.

[Function] The present invention uses the above-mentioned method to first coat the upper surface of a release mount (1) serving as a base sheet with a wet or tack adhesive layer (2) having an arbitrary shape such as a character shape. When the ultraviolet curable resin coating that becomes the separation layer (3) is applied to the coated surface of the adhesive layer (2), the applied part will be cured by absorbing ultraviolet rays.

Next, a colored ultraviolet curable resin paint is applied on the cured portion to form a colored layer (4).
) can be easily cured without coming into direct contact with the coating surface of the adhesive layer (2) coated on the top surface of the release mount (1) due to the presence of the separation layer (3). The colored layer (4) itself is also cured by absorption of ultraviolet rays, so it does not react with the adhesive layer (2) after being applied. (This makes it possible to obtain a clearly colored surface, and it becomes possible to accurately express the contours of minute characters, figures, etc. using the colored layer (4).

Furthermore, by applying a transparent ultraviolet curable resin paint on the colored layer (4) and using this as a clear layer (5), the clear layer (5) absorbs ultraviolet rays and hardens after being applied. , serves as a protective film for the colored layer (4) before and after transfer, and particularly after transfer, prevents frictional peeling of the colored layer (4) due to changes over time.

As described above, after laminating the adhesive layer (2) of any shape, the separation layer (3), the colored layer (4), the clear layer (5), on the upper surface of the release mount (1), By applying a carrier sheet (6) with an adhesive layer attached to the back side on the top surface of the mount (1),
It maintains the arrangement of the transfer layer (adhesive layer (2), separation layer (3), colored layer (4), and clear layer (5)), and also serves as a protective film.

Next, in the transfer stage, when the carrier sheet (6) is transferred from the release mount (1), the transfer layer is attached to the adhesive surface on the back side of the carrier sheet (6), and the carrier sheet (6) is If the transfer layer is attached to the surface to be transferred and then peeled off, the adhesive layer (2) inside the transfer layer will stick to the surface to be transferred, leaving only the transfer layer stuck to the surface to be transferred. Separate it from the carrier sheet (6). Therefore, at the transfer stage, only the ultraviolet curable resin coating consisting of the separation layer (3), colored layer (4), and clear layer (5) is adhered to the object to be transferred by the adhesive layer (2). becomes.

[Example] Hereinafter, one embodiment of the present invention will be described based on the drawings.

On the upper surface of the release mount (1), a rubber-based, acrylic-based, synthetic resin-based adhesive or adhesive is applied by appropriate means such as screen printing to form a sticky or adhesive layer (2).

Next, apply the adhesive layer (2) to the adhesive layer (2) by the same means as above.
Separation layer (3), colored layer (4),
A clear layer (5) is applied and laminated. The separation layer (3
) may or may not be colored, but an appropriately colored paint may be used for the colored layer (4), and a transparent paint may be used for the clear layer (5).

Further, a transparent carrier sheet (6) having an adhesive layer attached to the back surface is applied over the entire upper surface of the release mount (1) having a transfer layer on a part thereof. At this time,
The adhesive used in a layered manner on the back side of the carrier sheet (6) should be weaker than the adhesive used for the adhesive layer (2), and should not leave the transfer layer during transfer. Make the carrier sheet (6) easy to peel off.

As the ultraviolet curable resin paint used in the present invention, rJY-G gloss type manufactured by Joyo Mark Co., Ltd., JY
-M pine type” is most suitable.

In addition, FIGS. 1(a) and 1(b) are cross-sectional views of the transfer coating layer according to the present invention, and by using different ultraviolet curable resin paints with different chemical properties, a hemispherical shape as shown in (a) can be obtained. The coating film can be closed or formed into a trapezoidal shape 14 as shown in (b).

[Effect of the invention〕 The present invention having the above configuration has the following effects.

Adhesive on the release mount (1) having wet or tack properties,
Since the colored layer (4) is applied to the adhesive layer (2) via the separation layer (3) using an ultraviolet resin curable resin paint, the colored layer (4) is sticky and the adhesive layer A clear colored layer (4) that is not affected by (2) and does not gel after being melted into or mixed with the adhesive or adhesive as in the prior art.
), and it becomes possible to obtain a transfer layer that accurately represents minute characters, shapes, etc.

In addition, transfer to the object to be transferred can be easily performed by attaching the carrier sheet (]) and the transfer layer that have been peeled off from the release mount (1) to the object to be transferred, and then peeling off only the carrier sheet (1). It is very convenient, and can be easily transferred even by workers who are not proficient in transfer technology, and it does not require the use of heat, solvents, etc., thus reducing the risk of accidents and deterioration of the working environment. No more speaking.

In addition, the transfer layer after transfer is a clear layer (5) that serves as a cover to protect the colored layer (4), and the clear layer (5) hardened by UV absorption exhibits solvent resistance and alcohol resistance. Therefore, it is possible to prevent the colored layer (4) from peeling off due to friction or chemical reaction due to changes over time, and it can be used for a long period of time.

[Brief explanation of the drawing]

FIGS. 1A and 1B are cross-sectional views of the transfer coating layer according to the present invention, and FIG. 2 is a partial cross-sectional view showing the laminated structure of the present invention.・Release mount ・Adhesive, adhesive layer ・Separation layer ・Colored layer ・Clear layer ・Carrier sheet Joyo Mark Co., Ltd. Figure 1 Figure 2

Claims (1)

[Claims] A sticky or adhesive layer (2) having an arbitrary shape of wet or tack is applied to the upper surface of the release mount (1), and the sticky or adhesive layer (2) is coated on the surface to which the sticky or adhesive layer (2) is applied. A separation layer (3), a colored layer (4), and a clear layer (5) made of ultraviolet curable resin paint are applied in sequence to form a layer, and then a carrier sheet (6) with an adhesive layer attached to the back side is applied. A method for producing a transfer sheet, which comprises adhering the transfer sheet to the upper surface of a release mount having a transfer layer.