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Printing-free frosted hardened film for in-mold decoration

An in-mold decoration, printing-free technology, applied in special decorative structures, decorative arts, polyurea/polyurethane coatings, etc., can solve the problems of unenvironmental protection, time-consuming and labor-intensive, etc., to improve production efficiency, environmental friendliness, solve moldability and The effect of surface hardness

Active Publication Date: 2013-03-20
HEFEI LUCKY SCI & TECH IND +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the IMD method is used to replace the traditional coating method, which has greatly improved the brightness and durability of the pattern, but the production process also involves non-environmental factors such as organic solvents. For example, the ink printing process is often accompanied by various organic solvents. The existence of it is not environmentally friendly, but also time-consuming and labor-intensive

Method used

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  • Printing-free frosted hardened film for in-mold decoration

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Aliphatic urethane acrylate prepolymer UXE1000 45.0 parts,

[0037] Propoxylated pentaerythritol tetraacrylate EM2421 5.0 parts,

[0038] Black polyurethane microspheres C-800 B 15.0 parts,

[0039] Photoinitiator 184 2.0 parts,

[0040] Levaslip 432 2.0 servings,

[0041] Butanone 15.5 parts,

[0042] 15.5 parts of ethyl cellosolve,

[0043] To 45 parts of aliphatic urethane acrylate prepolymer (manufactured by Huayao Chemical (Wuxi) Co., Ltd., trade name: UXE1000) and 5.0 parts of propoxylated pentaerythritol tetraacrylate monomer (manufactured by Changxing Chemical Industry Co., Ltd. , trade name: EM2421), add 15 parts of black polyurethane microspheres (Negami Industry, product model: C-800 B, particle size 7 μm) for dispersion, and then add 2.0 parts of polydimethylsiloxane skeleton structure leveling agent (manufactured by Deqian (Shanghai) Chemical Co., Ltd.; trade name: Levaslip 432), and added 2.0 parts of photoinitiator (manufactured by Tianjin Tianjiao C...

Embodiment 2

[0046] Polyester acrylate prepolymer 6311-100 32.0 parts,

[0047] Ethoxylated pentaerythritol tetraacrylate monomer EM2411 8.0 parts,

[0048] Black acrylic microspheres C-400 B 25.0 parts,

[0049] Photoinitiator 1173 6.0 parts,

[0050] BYK 307 1.0 parts,

[0051] Butanone 14.0 parts,

[0052] 14.0 parts of methyl isobutyl ketone,

[0053]To 32.0 parts of polyester acrylate prepolymer (manufactured by Changxing Chemical Industry Co., Ltd., trade name: 6311-100) and 8.0 parts of ethoxylated pentaerythritol tetraacrylate monomer (manufactured by Changxing Chemical Industry Co., Ltd., trade name : EM2411), add 25 parts of black acrylic microspheres (Negami Industry, product model: C-400 B, particle size 15 μm) for dispersion, and then add 1.0 parts of polyether-modified polydimethylsiloxane skeleton Structured leveling agent (manufactured by BYK Chemical Co., Ltd.; trade name: BYK 307), and add 6.0 parts of photoinitiator (manufactured by Tianjin Tianjiao Chemical Co., Lt...

Embodiment 3

[0056] Aliphatic polyurethane hexaacrylate prepolymer 6145-100 20.0 parts,

[0057] 19.5 parts of internal group-modified dipentaerythritol 6 acrylic resin DPCA-60,

[0058] Photoinitiator 184 7.0 parts,

[0059] Blue polyurethane microspheres F040-15 30.0 parts,

[0060] BYK 333 1.5 parts,

[0061] Butanone 11.0 parts,

[0062] 11.0 parts of toluene,

[0063] To 20.0 parts of aliphatic polyurethane hexaacrylate prepolymer (manufactured by Changxing Chemical Industry Co., Ltd., trade name: 6145-100) and 19.5 parts of endide-modified dipentaerythritol 6 acrylic resin (Chemical Chemical Industry (Wuxi) Co., Ltd., trade name: DPCA-60), add 30 parts of blue polyurethane microspheres (Negami Industry, product model: F040-15, particle size 7μm) for dispersion, and then add 1.5 parts of polydimethylsiloxane A leveling agent with an oxane skeleton structure (manufactured by BYK Chemicals; trade name: BYK 333), and 7.0 parts of a photoinitiator (manufactured by Tianjin Tianjiao Ch...

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Abstract

The invention provides a printing-free frosted hardened film for in-mold decoration. According to the invention, a frosted hardened layer containing spherical or approximately spherical monotone organic microspheres is coated and formed on the surface of a substrate through ultraviolet curing technology; and the frosted hardened layer comprises, by weight, 20 to 45 parts of a polyurethane-acrylic acid prepolymer, 5 to 20 parts of an acrylic acid monomer modified through grafting, 15 to 40 parts of organic microspheres, 0.5 to 7 parts of a photoinitiator, 0.05 to 2 parts of a leveling agent and 20 to 60 parts of a solvent. The hardened film provided by the invention enables a later procedure of ink printing to be omitted, is environment-friendlier, has the advantages of a simple process, capacity of improving production efficiency and a frosted visual decorative effect, well overcomes the problem of contradictory performances of formability and surface hardness and can be widely applied in the field of in-mold decoration.

Description

technical field [0001] The invention relates to an in-mold decoration (IMD) technology, in particular to a frosted hardened film for in-mold decoration with a painting effect. 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 the decorative pattern is hot-pressed. After forming a predetermined shape, the film is cut and then placed in the cavity of the injection molding mold. It is preferable to inject molten material into the cavity, and the film is combined with the molten material to form a product with a decorative pattern. [0003] In-mold decoration is a popular surface decoration technology in the world. It is mainly used in surface decoration and functional panels of home appliances. It is commonly used in mobile phone window lenses and casing...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B44C5/04C09D175/14C09D5/28C09D7/12
Inventor 王志坚于佩强刘玉磊宋朝辉侯峰
Owner HEFEI LUCKY SCI & TECH IND
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