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Shallow fringe transparent hard coating film for in-mold decoration

A technology of in-mold decoration and interference patterns, which is applied in the direction of chemical instruments and methods, coatings, layered products, etc., can solve problems that affect product applications and affect product visual effects, and achieve the effect of solving interference

Active Publication Date: 2012-12-26
CHINA LUCKY FILM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In addition, the refractive index of the hard coat layer on the surface of the hardened film and the PET film are generally different. The difference in refractive index between the hard coat layer and the PET film will cause a clear interface. Light interferes, and at a certain angle, it will produce rainbow-shaped interference patterns. The existence of such interference patterns will affect the visual effect of the product and affect the application of the product. Therefore, the interference patterns must be eliminated on the in-mold decoration products.

Method used

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  • Shallow fringe transparent hard coating film for in-mold decoration

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Underlayer Coating Material

[0036] 611A-85 16.0 parts by weight;

[0037] 184 1.6 parts by weight;

[0038] BYK 377 0.1 parts by weight;

[0039] Butanone 22.3 parts by weight;

[0040] Dissolve 16.0 parts by weight of aliphatic polyurethane diacrylate prepolymer 611A-85 [manufactured by Changxing Chemical Industry Co., Ltd., functionality 2] into 22.0 parts by weight of methyl ethyl ketone solvent, add 0.1 parts by weight of polydimethyl The leveling agent BYK 377 [manufactured by BYK] with siloxane skeleton structure and 1.6 parts by weight of photoinitiator 184 [manufactured by Tianjin Tianjiao Chemical Co., Ltd.] were used to obtain the coating materials.

[0041] The above-mentioned coating material is applied to one side of a polyethylene terephthalate film [manufactured by China Lucky Film Group Corporation, trade name; PG12-125] with a thickness of 125 micrometers of optical grade, and heated at 70-90° C. After the formed coating dries for 2min, with 250mJ...

Embodiment 2

[0052] Underlayer Coating Material

[0053] 611A-85 16.0 parts by weight;

[0054] 184 1.6 parts by weight;

[0055] BYK 377 0.1 parts by weight;

[0056] Butanone 22.3 parts by weight;

[0057] Dissolve 16.0 parts by weight of aliphatic polyurethane diacrylate prepolymer 611A-85 [manufactured by Changxing Chemical Industry Co., Ltd., functionality 2] into 22.0 parts by weight of methyl ethyl ketone solvent, add 0.1 parts by weight of polydimethyl The leveling agent BYK 377 [manufactured by BYK] and 1.6 parts by weight of photoinitiator 184 [manufactured by Tianjin Tianjiao Chemical Co., Ltd.] were used to obtain coating materials.

[0058] The above-mentioned coating material is applied to one side of a polyethylene terephthalate film [manufactured by China Lucky Film Group Corporation, trade name; PG12-125] with a thickness of 125 micrometers of optical grade, and heated at 70-90° C. After the formed coating dries for 2min, with 250mJ / cm 2 The amount of light, the dried...

Embodiment 3

[0069] Underlayer Coating Material

[0070] 611A-85 16.0 parts by weight;

[0071] 184 1.6 parts by weight;

[0072] BYK 377 0.1 parts by weight;

[0073] Butanone 22.3 parts by weight;

[0074] Dissolve 16.0 parts by weight of aliphatic polyurethane diacrylate prepolymer 611A-85 [manufactured by Changxing Chemical Industry Co., Ltd., functionality 2] into 22.0 parts by weight of methyl ethyl ketone solvent, add 0.1 parts by weight of polydimethyl The leveling agent BYK 377 [manufactured by BYK] with siloxane skeleton structure and 1.6 parts by weight of photoinitiator 184 [manufactured by Tianjin Tianjiao Chemical Co., Ltd.] were used to obtain the coating materials.

[0075] The above-mentioned coating material is applied to one side of a polyethylene terephthalate film [manufactured by China Lucky Film Group Corporation, trade name; PG12-125] with a thickness of 125 micrometers of optical grade, and heated at 70-90° C. After the formed coating dries for 2min, with 250mJ / c...

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Abstract

The invention relates to a shallow fringe transparent hard coating film for in-mold decoration. A transparent hard coating is coated on a support body and comprises an upper hard coating and a lower hard coating, wherein the thickness of the hard coating is 5 to 10mu m; and the thickness of the upper hard coating is 1 to 3mu m. The fringes generated because the refractive index of the hard coating is different from that of a base material are eliminated through a two-layer hardening structure; and the shallow fringe transparent hard coating film has high rigidity and rub resistance and can meet the requirement of injection molding tensile property of the height of over 6mm.

Description

technical field [0001] The invention belongs to the technical field of in-mold decoration (IMD), in particular to a transparent cured film with shallow interference pattern for in-mold decoration (IMD). Background technique [0002] In-mold decoration (IMD) refers to the process of forming a decorative pattern on the surface of the product when the product is injection molded in the mold. Generally, a film with a decorative pattern is formed in advance, and then the film with a decorative pattern is formed. Thermoforming to form a predetermined shape, the film is cut and then placed in the cavity of the injection molding mold, preferably molten material is injected into the cavity, the film is combined with the molten material to form a product with a decorative pattern. The appearance of products made by in-mold decoration has a stronger sense of reality than products that are patterned by painting after injection molding, and the pattern does not have any adverse phenomena...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B27/08C09D175/14
Inventor 刘玉磊郑文耀李竞明王志坚于佩强王宏伟鲁若娜李丽
Owner CHINA LUCKY FILM CORP
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