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Transfer film for decoration

A transfer film and hard coating technology, which is applied in applications, decorative arts, household appliances, etc., can solve the problems that the hard coating and the decorative layer cannot be fully bonded, and the cost is increased.

Active Publication Date: 2015-10-21
TOPPAN PRINTING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is not preferable to newly install an anti-adhesion layer because it will increase the cost.
[0011] In addition, ultraviolet curable resins are often used in the hard coat layer, but in this case, sufficient adhesion between the hard coat layer and the decorative layer cannot be obtained in many cases.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0093] On a biaxially stretched polyester film (Mitsubishi Plastics G440E50) with a thickness of 50 μm, the release layer coating liquid of the following formulation was coated by micro gravure coating and dried so that the film thickness after drying became 0.4 μm . Afterwards, it aged for 5 days in an environment of 50° C. to form the mold release layer 2 .

[0094] ・Coating solution for mold release layer

[0095]Acrylic polyol LC#6560 manufactured by Dongrong Chemical Co., Ltd. 100 parts by weight

[0096] 20 parts by weight of silicone-modified acrylic resin FS730 manufactured by NOF

[0097] Japan Polyurethane isocyanate compound CORONATE L 20 parts by weight

[0098] Next, as the hard coat layer 3, the coating liquid for the hard coat layer described below was applied by the micro gravure coating method, and dried so that the film thickness after drying became 5.0 μm. After that, the film was wound up. The film was stored in an environment of 40° C. for 30 days, bu...

Embodiment 2

[0113] On a biaxially stretched polyester film (Mitsubishi Plastics G440E50) with a thickness of 50 μm, the release layer coating solution formulated as follows was applied by the micro gravure coating method and dried so that the film thickness after drying became 0.4 μm. Afterwards, it aged for 5 days in an environment of 50° C. to form the mold release layer 2 .

[0114] ・Coating solution for mold release layer

[0115] Acrylic polyol LC#6560 manufactured by Dongrong Chemical Co., Ltd. 100 parts by weight

[0116] 20 parts by weight of silicone-modified acrylic resin FS730 manufactured by NOF

[0117] Japan Polyurethane isocyanate compound CORONATE L 20 parts by weight

[0118] Next, as the first hard coat layer 8 , the coating liquid for the first hard coat layer described below was applied by the micro gravure coating method and dried so that the film thickness after drying became 1.0 μm. Thereafter, the coating liquid for the second hard coat layer described below wa...

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Abstract

Provided is a transfer film for decoration, which exhibits satisfactory molding performance during injection molding, while having excellent surface protection performance. A transfer film for decoration according to the present invention is obtained by sequentially laminating, on the surface of a supporting film, a mold release layer (2), a hard coat layer (3), a primer layer (4), a decorative layer (5) and a bonding layer (6). The hard coat layer (3) is formed of a tack-free ultraviolet curable composition which contains at least an acrylic acrylate resin that contains a hydroxyl group and has a weight average molecular weight of from 40,000 to 100,000 (inclusive), an ultraviolet initiator, silica particles having an average particle diameter of from 10 nm to 100 nm (inclusive), and a polytetrafluoroethylene powder having an average particle diameter of from 1 μm to 10 μm (inclusive). The primer layer (4) is formed of a two-package curable resin which contains at least an acrylic polyol resin, a polyisocyanate compound and a vinyl chloride-vinyl acetate copolymer resin containing a hydroxyl group.

Description

technical field [0001] The present invention relates to a transfer film for decoration, and in particular to a transfer film for decoration while molding, which has molding transferability and excellent surface protection performance. Background technique [0002] Inserting a transfer film having a hard coat layer and a decorative layer into a metal mold during injection molding is used as a method of manufacturing a decorated molded product having a surface excellent in scratch resistance, chemical resistance, etc. Internally, the method of transferring the hard coat layer and decorative layer to the molding resin (transfer object) at the same time as molding by using hot pressing during injection molding. In recent years, for the hard coat layer of the transfer film (hereinafter also referred to as "molding and decoration transfer film"), the ultraviolet curing type is more dominant than the heat curing type. And recently, the hard coat layer before transfer is in a semi-...

Claims

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Application Information

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IPC IPC(8): B32B27/30B32B27/00B32B27/18B44C1/165
CPCB44C1/1729B32B7/06B32B27/08B32B27/16B32B27/20B32B27/308B32B2255/10B32B2255/26B32B2264/0242B32B2264/102B32B2307/554B32B2307/748B32B2457/00B32B2605/00B44C1/165
Inventor 渡边学松田启佑樋爪友美渡边惠
Owner TOPPAN PRINTING CO LTD
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