JPH06226920A - Transfer decorating plate - Google Patents

Abstract

PURPOSE:To obtain a transparent, decorative laminate with an ingenious design easily and surely by accomplishing heat transfer on a transparent acetate plate and further laminating a thinner acetate plate by hot-pressing over a transfer pattern layer. CONSTITUTION:A transfer decorating plate 1 consists of integral lamination of a transparent substrate of acetate plate 2, a primary coat of butyral group resin layer 3, a printed pattern layer 4, a finish coat of butyral group resin layer 5 and a thinner, transparent acetate plate 6. The butyral resin layers 3 and 5 are for transferring and bonding the transfer layers onto the bodies to be transferred, and are selected from heat sensitive adhesives, solvent activating adhesives, ionizing radiation setting adhesives etc., that are appropriate for the purposes of their use. However, in the event when the transfer layers such as a pattern layer, peel plies etc., other than adhesive layers have sufficient bonding properties with them, the adhesive layers may be omitted.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transparent decorative plate having a pattern printing layer for clothing accessories such as spectacle frames, combs, buttons or accessory accessories.

[0002]

2. Description of the Related Art Conventional patterned ornaments include natural products such as tortoise shell and coral, molded products in which several pigments are mixed and kneaded, transfer plates using celluloid plates, or acetate plates BACKGROUND ART A decorative plate is known in which printed films are stuck together.

[0003]

However, in the prior art as described above, natural products such as tortoise shells and corals are prevented from catching for the purpose of protecting natural resources, or due to prohibition of acquisition of raw materials, and rising raw material costs. As an alternative to synthetic resin products, celluloid resin plates have a low softening temperature and are limited in shape when molding eyeglass frames, combs and the like. Further, in the case where the pattern films are stuck together, the adhesive layer may bleed and stick out due to aging under severe use conditions such as the edge portion of an eyeglass frame or the like.

The present invention has been made in view of the above problems, and uses an acetate plate as a base material of a decorative plate and sandwiches a pattern layer by heat and pressure transfer to make a highly transparent design. The plate is provided easily and surely.

[0005]

In order to achieve the above object, the transfer painting acetate plate of the present invention is a butyral-based adhesive sheet having adhesion to an acetate resin on both surfaces of a pattern layer of a transfer sheet having releasability. The present invention is characterized in that a resin layer is applied, a transparent acetate plate is subjected to thermal transfer using the transfer sheet, and a thin acetate plate is laminated on the upper surface of the transfer pattern layer by hot pressing.

[0006]

In the transfer painting acetate plate having the above-mentioned structure, the transparent acetate plate is used as the base material of the decorative plate, and the pattern layer is sandwiched by the hot pressing through the butyral resin layer having good heat transfer adhesion. Therefore, it is possible to provide a decorative plate with good post-processability and high design.

[0007]

EXAMPLES Examples will be described below with reference to the drawings.

FIG. 1 is a cross-sectional view of a transfer painting acetate plate obtained by the manufacturing method of the present invention, FIG. 2 is a cross-sectional view in a manufacturing process in which a pattern printing layer is thermally transferred onto a transparent substrate acetate plate, and FIG. 3 is thin. FIG. 3 is a cross-sectional view in a manufacturing process in which a transparent acetate plate is subjected to thermocompression bonding, and as can be seen from these drawings, the transfer painting plate 1 includes a base transparent acetate plate 2, an undercoating butyral resin layer 3, a pattern printing layer 4, The top coat butyral resin layer 5 and the thin transparent acetate plate 6 are integrally laminated.

As the transparent acetate plates 2 and 6,
Generally, a highly transparent thermoplastic resin is used, and since complicated processing is performed, it becomes flexible without causing chemical change even by heating for a short time, and a resin that can be plasticized and processed freely is desirable, Further, from the viewpoint of usage after processing and molding, those having high surface hardness are more desirable. The acetic acid fibrous material is suitable as the resin, and among them, the triacetate resin having excellent mechanical properties such as transparency, flatness, heat resistance, stiffness, flexibility and durability is most suitable.

The butyral resin layers 3 and 5 are layers for transferring and adhering the transfer layer to the transferred material, and are selected from among heat sensitive adhesives, solvent activated adhesives, ionizing radiation curable adhesives, etc. To select. The adhesive layer may be omitted when the transfer layer other than the adhesive layer such as the pattern layer and the release layer has sufficient adhesiveness. The heat-sensitive adhesive is a material that exhibits adhesiveness when heated, and usually a thermoplastic resin, an ionomer, or the like is used. For example, when the transfer target is an acetate resin, an acrylic resin or a vinyl resin is mainly used. When used as a decorative article as in the present invention,
A polyvinyl butyral resin having excellent transparency is preferable.
By changing the degree of polymerization of the resin, it is possible to arbitrarily adjust the degree of performance such as the softening point (heat melting property). That is, the butyral resin having a low degree of polymerization, which exhibits adhesiveness at a relatively low temperature in view of the temperatures at the time of thermal transfer and post-processing, has an average polymerization degree of 3
Those around 00 are excellent. The method of applying the adhesive may be a usual printing method, and the thickness of the adhesive layer may be 1 to 10 μm.
11 good.

As the printing ink, it is desirable that the pattern printing layer 4 is formed by using an ink having high transparency.
Even when there is no transparency, the lower layer can be seen through between the halftone dots formed with halftone dots. This pattern printing layer is a gravure printing method, a silk screen printing method, etc., using an ink in which a color pigment, an additive, etc. are dispersed in a vehicle in which a resin binder having good adhesion to a transparent adhesive layer is dissolved in a solvent. It is advisable to provide a tortoiseshell pattern, a stone pattern, etc. by the usual printing method.

As the base material 7 for the releasable transfer sheet, polyester, polypropylene, polyethylene, nylon,
It is advisable to use a plastic film such as cellophane, a paper, a metal foil, or a composite film thereof, which is commonly used as a base sheet for a transfer sheet.

Example 1 Butyral resin-based transparent ink (HS medium, Showa Ink Kogyo) on polyester transfer paper (Keiwa Shoko)
Was uniformly gravure coated so that the thickness was 2 μm. Then, on the transparent butyral resin layer, vinyl chloride gravure ink (manufactured by Showa Ink Mfg. Co., Ltd.
T) is used to print with a tortoiseshell pattern gravure plate, and then a butyral resin-based transparent ink (HS Medium, Showa Ink Mfg. Co., Ltd.) is applied to the entire pattern printing layer to have a uniform thickness of 2 μm. Then, a gravure solid coating was carried out to obtain a transfer sheet of the present invention. Then, the butyral resin layer surface of the transfer sheet was brought into close contact with an acetate plate (Takylon Roland, yellow clear plate) having a thickness of 5 mm, and a silicon rubber roller having a surface temperature of 200 ° C. was used to feed 4
Under a condition of m / min and a pressure of 10 kg / cm ² , the roll press method was used to perform thermal pressure transfer to obtain a tortoiseshell pattern transfer product. A 1 mm thick transparent plate of the same quality as the above acetate plate was heat-pressed at 180 ° C. × 2 kg / cm ² × 10 min on the transfer surface of the obtained tortoiseshell pattern transfer product to the acetate plate, and a transfer picture for eyeglass frames was attached. A plate was obtained. ,
In the colored and transparent printed part of the tortoiseshell pattern, the lower glossy layer could be seen through, and the appearance of the glossy layer was different depending on the viewing angle, so the texture of the natural tortoiseshell was expressed and there was a sense of depth.

Composition of transparent adhesive Unit weight% Polyvinyl butyral (polymerization degree 300) 18.0 Isopropyl alcohol 45.0 Toluene 37.0

[0015]

EFFECTS OF THE INVENTION In the transfer painting acetate plate of the present invention, the pattern layer is thermally transferred to the base material transparent acetate via the high-adhesion butyral resin layer, and then the transparent thin acetate plate is laminated by the hot press. As a result, since the pattern layer is sandwiched by the transparent acetate resin, there is no bleed-out of the adhesive layer from the edge portion with the passage of time, and it is possible to mold small items with complicated shapes such as eyeglass frames and combs. It was

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a transfer painting acetate plate obtained by the manufacturing method of the present invention.

FIG. 2 is a cross-sectional view in a manufacturing process in which a pattern printing layer is thermally transferred to a transparent substrate acetate plate.

FIG. 3 is a cross-sectional view in a manufacturing process in which a thin transparent acetate plate is thermocompression bonded.

[Explanation of symbols]

 1 Transfer Painting Plate 2 Base Material Transparent Acetate Plate 3 Undercoat Butyral Resin Layer 4 Pattern Printing Layer 5 Topcoat Butyral Resin Layer 6 Thin Transparent Acetate Plate 7 Transfer Sheet Base Material 8 Transfer Sheet

Claims (1)

[Claims] 1. A transfer sheet having a butyral resin layer having adhesiveness to an acetate resin on both sides of a pattern layer is used to perform thermal transfer to a transparent acetate plate, and a thin acetate plate is then transferred to the upper surface of the transfer pattern layer. A transfer painting acetate plate characterized by being laminated by hot pressing.