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Self-adhesive functional composite film and preparation method thereof

A composite film, functional technology, applied in the direction of adhesive types, rosin adhesives, ester copolymer adhesives, etc., can solve the problems of high volatility, complex production process, high pollution and so on

Active Publication Date: 2020-07-07
成都彭州立源高分子材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the first invention of the present invention is to provide a self-adhesive functional composite film, which uses a solvent-free adhesive to form a self-adhesive adhesive layer, and to solve the problems of high volatility, high pollution, and complex production processes that exist in the current self-adhesive functional composite film. The preparation process of coating and radiation curing is adopted, and a transparent release layer with low surface energy is used at the same time, which can realize timely coating and curing, eliminating the need for placing and drying. The preparation process has no solvent volatilization, and the production is easy, simple and efficient. Achieved the technical effect of energy saving, environmental protection and high efficiency

Method used

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  • Self-adhesive functional composite film and preparation method thereof
  • Self-adhesive functional composite film and preparation method thereof
  • Self-adhesive functional composite film and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] On the white PE film (light transmittance 3%) of 25 μ m thick, about 4A size, use 5 roller coating mode to coat about 0.5 μ m of silicon release agent, under voltage 110KV, 30KGy irradiation dose and nitrogen gas, EB curing; The other side of the PE film is coated with EB glue A with a thickness of 30 μm, and the EB is cured under a voltage of 150KV, a radiation dose of 50KGy and nitrogen to obtain a white self-adhesive functional film A without a hardened layer.

Embodiment 2

[0060]Flexographically print black and white stripe patterns on a transparent PET sheet with a thickness of 100 μm, the thickness of the ink layer is about 8 μm, and the EB is cured at a voltage of 130KV, an irradiation dose of 30KGy and nitrogen, and the adhesion of the color block to the PET sheet is detected by the cross-hatch method It is level 0 (best level); roll-coat 5 microns of hardener on the ink layer, and cure with EB at a voltage of 110KV, an irradiation dose of 25KGy and nitrogen to obtain a hardened layer with a hardness of about 4H; roll-coat on the hardened layer About 0.4μm fluorine release agent, and EB curing under voltage 110KV, radiation dose 20KGy and nitrogen; 40μm EB pressure-sensitive adhesive B is coated on the back of PET sheet, and the voltage is 160KV, radiation dose 60KGy and nitrogen The lower EB is cured to obtain a self-adhesive functional film B with a release layer, a hardened layer, and black and white patterns.

Embodiment 3

[0062] Print the pattern of black and blue alternate stripes on a white PET sheet with a thickness of 180 μm. The thickness of the ink layer is about 6 μm. When the voltage is 120KV, the radiation dose is 30KGy and the nitrogen is cured by EB, the adhesion of the pattern color block to the PET sheet is 0; Coat the 5μm hardener with matte powder on the layer, and EB cure at a voltage of 110KV, an irradiation dose of 25KGy and nitrogen, and the hardness of the hardened layer is about 4H; a 60μm UV glue is coated on the back of the PET sheet and used After covered with PE release film, it is irradiated and cured by a crawler-type light curing machine equipped with 2x1000W mercury lamps, and the exposure energy is 1000J / cm 2 , get the self-adhesive functional film C of the matte blue-black pattern of release film protection.

[0063] The self-adhesive functional film A of embodiment 1 and the self-adhesive functional film B of embodiment 2 are both self-adhesive functional films w...

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Abstract

The invention discloses a self-adhesive functional composite film. The self-adhesive functional composite film comprises a plastic base film, one side of the plastic base film is coated with a solvent-free adhesive and forms a self-adhesive layer in a radiation curing mode, a release layer is arranged on the other side of the plastic base film, the release layer is a transparent release layer withlow surface energy, and the stripping force of the release layer to a standard adhesive tape is smaller than 0.5 N / 25 mm. The invention provides the self-adhesive functional composite film. The self-adhesive layer is formed by using the solvent-free adhesive, the preparation process of coating and radiation curing is adopted, and meanwhile, the transparent release layer with low surface energy isadopted, so that timely coating and curing can be realized, the procedures of placing and drying are omitted, no solvent volatilizes in the preparation process, the production is easy, simple and efficient, and the technical effects of energy conservation, environmental protection and high efficiency are achieved.

Description

technical field [0001] The invention relates to the technical field of self-adhesive film preparation, in particular to a self-adhesive functional composite film and a preparation method thereof. Background technique [0002] Self-adhesive functional composite film is a multifunctional composite material with specific functions, such as color or pattern decoration, surface coating function of anti-fouling and anti-graffiti coating, and self-adhesive ability. Due to the inherent high volatility, high pollution, flammability and explosion of coatings and the need for complex coating processing techniques, self-adhesive functional composite films are used instead of coatings, and film lamination replaces high volatility and complex coating production methods. , will be of great value. In the fields of building materials, furniture, home decoration and industrial packaging that need to be painted or decorated, there is an actual demand for self-adhesive functional films to repla...

Claims

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Application Information

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IPC IPC(8): C09J7/30C09J7/24C09J7/25C09J4/02C09J4/06C09J133/04C09J175/14C09J193/04C09J11/06
CPCC09J7/30C09J7/243C09J7/255C09J4/06C09J133/04C09J11/06C08L2205/03C09J2423/046C09J2467/006C08L75/14C08L93/04
Inventor 王跃川林燕斌郑贵章邓超
Owner 成都彭州立源高分子材料有限公司
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