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Printable functional hard coating film and preparation method thereof

A technology of hard coating and hard coating, applied in coatings, polyurea/polyurethane coatings, etc., can solve the problems of hard coating residue, high peeling force, difficult to control peeling force, etc., and achieve excellent hardness and printability , easy peeling effect

Active Publication Date: 2020-02-18
爱思开迈克沃解决方案有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, in the case of a melamine-based or acrylic release layer, unlike a silicon-based release layer, although the surface layer coating (overcoating) is good, the release force is high and it is difficult to control the release force. In the case of mold film, it cannot be peeled off completely, so there is a problem of hard coat residue on the release surface

Method used

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  • Printable functional hard coating film and preparation method thereof
  • Printable functional hard coating film and preparation method thereof
  • Printable functional hard coating film and preparation method thereof

Examples

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preparation example Construction

[0067] The preparation method of the hard coating film comprises the following steps: (1) adding polydimethylsiloxane and hydrogen siloxane having vinyl or hexenyl to prepare silicone resin; Coating a composition comprising the silicone resin on the material layer to form a release layer; and (3) coating a hard coating comprising a polymer resin having a glass transition temperature of 30° C. or higher on the release layer layer of resin composition to form a hard coat.

[0068] Each step will be described in detail below.

[0069] The step (1) is a step of preparing a silicone resin by adding polydimethylsiloxane having vinyl or hexenyl groups to hydrogen siloxane.

[0070] The specific types, structures, and reaction amounts of the polydimethylsiloxane and hydrogen siloxane are as exemplified above.

[0071]Specifically, as shown in the chemical formula 1, the polydimethylsiloxane may have a vinyl group or a hexenyl group, whereby the vinyl group or hexenyl group may be co...

Embodiment 1-1

[0089] 10 parts by weight of polydimethylsiloxane (manufactured by Dow Corning, LTC750A), 0.2 parts by weight of hydrosiloxane (manufactured by Dow Corning, 7048), 0.002 parts by weight of platinum catalyst and the remaining amount of solvent (toluene / methyl ethyl ketone mixed solvent) were mixed and stirred to prepare a total of 100 parts by weight of the release layer resin composition. The release layer resin composition was coated on a polyethylene terephthalate film (PET film) with a thickness of 50 μm by a conventional coating method, and then heated and dried at 150° C. for 30 seconds. As a result, a release film in which a release layer with a thickness of 0.5 μm was formed on a PET film was obtained.

Embodiment 1-2

[0091] The same procedure as in Example 1 above was carried out, except that the coating amount of the release layer resin composition was adjusted to prepare a release film in which a release layer with a thickness of 0.05 μm was formed on a PET film.

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Abstract

The invention relates to a printable functional hard coating film and preparation method thereof, wherein the hard coating film has a structure that a base layer, a release layer and a hard coating layer are stacked in order. The release layer comprises silicone that is obtained by addition reaction between polydimethylsiloxane containing vinyl or hexenyl and hydrogen siloxanes; the hard coating layer comprises polymer resin that has a glass transition temperature of over 30 DEG C. The hard coating layer has a good hardness and print adhesion; the release layer can be peeled off from the hard coating layer easily, therefore, the release layer can be peeled off from the hard coating layer clean after printing or vapor depositing on the surface of the hard coating layer.

Description

technical field [0001] The invention relates to a printable functional hard coating film and a preparation method thereof. More specifically, it relates to a hard coat film capable of printing and vapor deposition on the hard coat film and easy to peel off from a release film, and a method for producing the hard coat film. Background technique [0002] Recently, in order to reduce the difference in thickness due to printing, a substrate-free hard coat film has been widely used. Most substrateless transfer hard coat films are formed by coating and curing a hard coat resin composition on a release film (see Korean Laid-Open Patent Publication No. 2015-77428). After that, a printing layer using ink or patterns is formed on the hard coat layer, and plastic injection products are attached to the printing layer, and then transferred by removing the release film. [0003] The release film included in the hard coat film is composed of a base material layer and a release layer, and...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08J7/04C09D183/04C09D183/10C09D5/20C09D175/04C08G77/38C08G77/44C08L67/02
CPCC08G77/38C08G77/44C08J7/042C08J2367/02C08J2475/04C08J2483/04C08J2483/10C09D5/20C09D175/04C09D183/04C09D183/10
Inventor 李康圭李扃旻郑光洙崔荣洙冰广殷
Owner 爱思开迈克沃解决方案有限公司
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