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Transfer film for in-mold injection showing three-dimensional pattern, and preparation method thereof

A technology of in-mold injection molding and transfer printing film, which is applied to the device for coating liquid on the surface, chemical instruments and methods, printing of special varieties of printed matter, etc. It can solve the problems that the optical gradient of the three-dimensional pattern cannot be displayed, and achieve a strengthened surface. The effect of intensity

Inactive Publication Date: 2014-07-23
LG HAUSYS LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, although the above-mentioned laminated film comprising a metal vapor-deposited layer and a printed layer can express a simple metallic feeling or a flat pattern, it cannot express a three-dimensional pattern or give a hologram effect or an optical gradation with a different color or pattern depending on the viewing angle. (optical graduation) effect

Method used

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  • Transfer film for in-mold injection showing three-dimensional pattern, and preparation method thereof
  • Transfer film for in-mold injection showing three-dimensional pattern, and preparation method thereof

Examples

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preparation example Construction

[0035] Preparation method of transfer film for in-mold injection molding

[0036] figure 2 It is a flow chart showing the manufacturing process of the transfer film for in-mold injection molding of the Example of this invention.

[0037] refer to figure 2 , the preparation process of the transfer film for in-mold injection molding of the present invention comprises: the step S110 of forming the substrate, the step S120 of forming an ultraviolet curable layer comprising a release agent composition on the upper part of the substrate, and the step S120 of forming the ultraviolet curable layer on the above substrate Step S130 of forming a hard coat layer on top, step S140 of forming a printing layer on top of the hard coat layer, and step S150 of forming an adhesive layer on top of the printing layer.

[0038] The step S120 of forming a UV-curable layer comprising a release agent composition on the upper part of the base material includes the step of forming a three-dimensio...

Embodiment

[0050] A UV curable layer is formed on the upper part of a 50 μm thick polyethylene terephthalate film, and then a 5 μm thick three-dimensional pattern is formed on the upper part of the UV curable layer using a micro gravure coating method, wherein the above UV curable layer contains 50 % by weight of urethane acrylate, 5% by weight of photoinitiator (benzoin methyl ether), 35% by weight of additives (sodium lauryl sulfate) and 10% by weight of silicone acrylate oligomers, In addition, the thickness of the ultraviolet curing layer was 20 μm. Thereafter, it was cured with a metal halide ultraviolet lamp (lamp power: 400 mJ, curing speed: 5 m / min).

[0051] Afterwards, a hard coat layer is formed, and a modified acrylic polyol-based vapor deposition primer composition is coated with a thickness of 1 μm on the top of the hard coat layer, and then cured at a temperature of 120° C. for 20 seconds to form a vapor deposition primer. paint layer.

[0052] Afterwards, a printed laye...

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Abstract

The present invention provides a transfer film for in-mold injection, comprising a substrate, a UV curing layer, a hard coating layer, a printed layer and an adhesive layer, wherein the UV curing layer comprises a three-dimensional pattern and a releasing agent composition. In addition, the present invention provides a preparation method of a transfer film for in-mold injection comprising the steps of: forming a substrate; forming a UV curing layer comprising a releasing agent composition on the substrate; forming a three-dimensional pattern on the UV curing layer, and curing the same using a UV lamp; forming a hard coating layer on the releasing layer; forming a printed layer on the hard coating layer; and forming an adhesive layer on the printed layer.

Description

technical field [0001] The present invention relates to a transfer film for in-mold injection molding and a preparation method thereof, and in more detail, relates to a transfer film for in-mold injection molding characterized by the above-mentioned ultraviolet curing layer comprising a three-dimensional pattern and a release agent composition. Background technique [0002] The transfer film for in-mold injection molding is a laminated film formed of a plurality of layers each having unique characteristics, and includes a metal vapor-deposited layer or a printed layer printed with various patterns in order to express a metallic feeling or a pattern. However, although the above-mentioned laminated film comprising a metal vapor-deposited layer and a printed layer can express a simple metallic feeling or a flat pattern, it cannot express a three-dimensional pattern or give a hologram effect or an optical gradation with a different color or pattern depending on the viewing angle....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41M3/12B41M5/40
CPCB29C45/14688B32B23/08B32B2250/24B32B2307/40B41M3/12B44C1/1712B44C1/1729Y10T428/24612B41M5/40B05D1/30B05D3/067
Inventor 李明珍黄载捧
Owner LG HAUSYS LTD
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