Transparent hardened film for in-mold decoration

A technology of in-mold decoration and hardening film, which is applied in the direction of chemical instruments and methods, coatings, layered products, etc., can solve the problems of insufficient hardness, etc., to overcome the reduction of molding tensile properties and excellent molding tensile properties , the effect of good forming tensile properties

Active Publication Date: 2012-11-21
NINGBO HUGHSTAR ADVANCED MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Patent CN 200610001638 discloses a high-hardness optical film structure and process using in-mold molding to prepare a cured film for in-mold decoration by UV curing, but the film does not have a high enough hardness (2B, H )

Method used

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  • Transparent hardened film for in-mold decoration

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] The hardened coating layer of this embodiment is made by the following components by weight after being cured by ultraviolet light:

[0049] 6147 15

[0050] 6130B-80 20

[0051] U8605 5

[0052] 184 10

[0053] EFKA3772 0.01

[0054] Ethyl acetate 49.99

[0055] The preparation method is as follows:

[0056] To 15 parts by weight of hexafunctional aliphatic urethane acrylate prepolymer (produced by Changxing Chemical Materials Co., Ltd., trade name: 6147, functionality: 6), 20 parts by weight of trifunctional aliphatic urethane acrylate prepolymer (Changxing Produced by Chemical Materials Co., Ltd., trade name: 6130B-80, functionality: 3) and 5 parts by weight of organic-inorganic hybrid material (produced by Taiwan Lida Chemical Co., Ltd., trade name: U8605) mixture, while adding 0.01 wt. Parts of acrylic leveling agent (produced by Efka Auxiliary Company of the Netherlands, trade name: EFKA3772), 10 parts by weight of photoinitiator 1-hydroxycyclohexyl phenyl k...

Embodiment 2

[0058] The hardened coating layer of this embodiment is made by the following components by weight after being cured by ultraviolet light:

[0059] U900 20

[0060] W300 5

[0061] 601A-35 7

[0062] 184 5

[0063] EFKA3299 0.1

[0064] Butyl acetate 62.9

[0065] The preparation method is as follows:

[0066] To 20 parts by weight of hexafunctional aliphatic urethane acrylate prepolymer (produced by Bayer, Germany, trade name: U900, functionality: 6), 5 parts by weight of difunctional aliphatic urethane acrylate prepolymer (Guangzhou Wuxing Produced by Material Company, trade name: W300, functionality: 2) and 7 parts by weight of organic-inorganic hybrid material (produced by Changxing Chemical Co., Ltd., trade name: 601A-35), while adding 0.1 parts by weight of organosiloxane Alkane leveling agent (produced by Efka Auxiliary Company of the Netherlands, trade name: EFKA3299), 5 parts by weight of photoinitiator 1-hydroxycyclohexyl phenyl ketone (produced by Changzhou Hu...

Embodiment 3

[0068] The hardened coating layer of this embodiment is made by the following components in parts by weight after being cured by ultraviolet light: EB220 30

[0069] W300 14

[0070] U-0933-63 10

[0071] 1173 8

[0072] EFKA3299 0.5

[0073] Butyl acetate 37.5

[0074] The preparation method is as follows:

[0075] To 30 parts by weight of hexafunctional aromatic urethane acrylate prepolymer (produced by Cytec, trade name: EB220, functionality: 6), 14 parts by weight of difunctional aliphatic urethane acrylate prepolymer (Guangzhou Wuxing Produced by Material Company, trade name: W300, functionality: 2) and 10 parts by weight of organic-inorganic hybrid material (produced by Suzhou Lihua Resin Co., Ltd., trade name: U-0933-63), while adding 0.5 parts by weight Parts of organosiloxane leveling agent (produced by Efka Auxiliaries in the Netherlands, trade name: EFKA3299), 8 parts by weight of photoinitiator 2-hydroxy-methylphenylpropane-1-one (Changzhou Huati Chemical Co.,...

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Abstract

The invention provides a transparent hardened film for in-mold decoration. The transparent hardened film comprises a base film and a hardened coating layer coated thereon. The base film is a PET (polyethylene glycol terephthalate) film, and the thickness of the hardened coating layer ranges from 3 micrometers to 5 micrometers. The hardened coating layer comprises, by weight, 15-30 parts of high-functionality polyurethane acrylate prepolymer, 5-20 parts of low-functionality polyurethane acrylate prepolymer, 5-10 parts of organic-inorganic hybrid materials, 5-10 parts of photoinitiators, 0.01-0.1 part of flattening agents and 30-64 parts of organic solvent which are subjects to ultraviolet curing. The transparent hardened film has the advantages of high hardness, excellent stretch forming performance, good wear resistance, high transparency and low haze.

Description

technical field [0001] The invention belongs to the technical field of in-mold decoration (IMD), and in particular relates to a transparent cured film for in-mold decoration. Background technique [0002] In-mold decoration (in-mold decoration, IMD) refers to putting the printed decorative sheet into the injection mold, and then injecting the resin on the back of the formed sheet, so that the resin and the sheet are combined and cured. Technology, the process principle is: the surface is a hardened transparent film, the middle is a printed pattern layer, and the back is an injection layer. IMD inserts decoration while injection molding, so that the final product and the decorative sheet are laminated together to achieve the effect of combining decoration and functionality. The appearance of products made by using in-mold decoration technology has a stronger sense of reality than products formed by painting after injection molding, and the patterns do not have any adverse ph...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/14C09D7/12B32B27/08B32B27/18B32B27/36B32B27/40
Inventor 王小蓓张美超董红星
Owner NINGBO HUGHSTAR ADVANCED MATERIAL TECH
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