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transfer film

A technology of transfer film and substrate film, applied in decorative arts, electronic equipment, applications, etc., can solve the problems of mold release layer damage, poor transfer, poor appearance, etc., to achieve less environmental load, excellent mold release, Excellent hard coat function and design effect

Inactive Publication Date: 2017-05-10
TOPPAN PRINTING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method also has a problem that the release layer is destroyed by the temperature applied during transfer, resulting in poor transfer (poor appearance)

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0076] The present invention will be described in detail below using examples.

[0077]

[0078] A biaxially stretched polyester film (manufactured by Mitsubishi Plastics Corporation: G440E50) with a thickness of 50 μm was used as the base film 1, and the following was applied on one surface by the microgravure method so that the film thickness after drying became 0.2 μm. The composition of the coating liquid for the release layer is dried. Thereafter, aging was performed at 50° C. for 5 days to form the release layer 2 .

[0079] (Composition of Coating Liquid for Release Layer)

[0080] Acrylic polyol resin (LC#6560 manufactured by Toei Chemical Co., Ltd.): 100 parts by weight

[0081] Nitrocellulose (H1 / 4): 10 parts by weight

[0082] Acrylic resin: 5 parts by weight

[0083] (It is a copolymer of 6-hydroxyhexyl acrylate and stearyl methacrylate, and has a hydroxyl group and a long-chain alkyl group (18 carbons))

[0084] Isocyanate compound: 20 parts by weight

[0...

Embodiment 2

[0095] The mold release layer 2 was formed similarly to Example 1 except having used the coating liquid for mold release layers of the following composition.

[0096] (Composition of Coating Liquid for Release Layer)

[0097] Acrylic polyol resin (LC#6560 manufactured by Toei Chemical Co., Ltd.): 100 parts by weight

[0098] Nitrocellulose (H1 / 4): 10 parts by weight

[0099] Acrylic resin: 5 parts by weight

[0100] (It is a copolymer of 6-hydroxyhexyl acrylate and stearyl methacrylate, and has a hydroxyl group and a long-chain alkyl group (18 carbons))

[0101] Silicone-modified acrylic resin (manufactured by NOF: FS730): 5 parts by weight

[0102] Isocyanate compound: 20 parts by weight

[0103] (CORONATE L manufactured by Japan Polyurethane Co., Ltd.)

[0104] Next, the coating liquid for hard-coat layers of the following composition was apply|coated by the microgravure method so that the film thickness after drying might become 5.0 micrometers, and it dried. In this ...

Embodiment 3

[0113] Using the same substrate film 1 as in Example 1, an anchor layer coating solution having the following composition was applied to one surface by the microgravure method so that the film thickness after drying became 5.0 μm, and dried. In this way, the anchor layer 9 is formed.

[0114] (Composition of Coating Liquid for Anchor Layer)

[0115] Acrylic polyol resin: 100 parts by weight

[0116] (Manufactured by Toei Chemical Co., Ltd.: LC#6560)

[0117] Silica filler (manufactured by Evonik Degussa: particle size: 6 μm): 5 parts by weight

[0118] Polyacrylonitrile filler (manufactured by Toyobo Co., Ltd.: particle size: 7 μm): 5 parts by weight

[0119] Isocyanate compound: 10 parts by weight

[0120] (Japan Polyurethane Co., Ltd.: CORONATE HL)

[0121] Next, a release layer coating liquid having the following composition was applied on the anchor layer 9 by the microgravure method so that the film thickness after drying became 1.0 μm, and dried. In this way, the r...

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Abstract

The purpose of the present invention is to provide a transfer film in which the environmental load (human load) is smaller, low-temperature processing is possible, and an excellent hard coating function is imparted on the transfer-receiving body (mainly a plastic molded item). This transfer film is obtained by sequentially layering at least a mold separation layer (2), a hard coating layer (3), and an adhesive layer (6) on one surface of a substrate film (1). The separation layer (2) is formed of an acrylic urethane resin having a long-chain alkyl group having 10-30 carbon atoms.

Description

technical field [0001] The present invention relates to a transfer film having a hard coat layer. Background technique [0002] Conventionally, as a method of directly decorating a plastic molded article, a thermal transfer method using a transfer film has been used as an alternative to a direct decorating method such as painting. Most of such transfer films require a hard coat function for the purpose of protecting the surface of plastic moldings. For example, the above-mentioned transfer film generally employs a structure in which a release layer, a hard coat layer, a decorative layer, and an adhesive layer are sequentially laminated on one surface of a base film. [0003] Here, the release layer is required to have a function of imparting good peelability of the self-hard coating layer when thermally transferring to a transfer target such as a plastic molded article. In addition, satisfactory designability is required for the decorative layer, and strong adhesiveness to...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B27/40B44C1/17C08G18/62C09K3/00
CPCB32B27/40B32B7/06B32B27/08B32B27/283B32B27/308B32B2307/748B32B2457/00B44C1/17C08G18/6229C08G18/6254
Inventor 渡边学松田启佑樋爪友美
Owner TOPPAN PRINTING CO LTD
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