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Film plating method for forming colorful films through PET films, and application of PET films to glass cover plates

A color film and coating technology, which is applied to the coating of PET film to form colorful film, and the application field of glass cover plate, can solve the problems of multiple raw materials, the difference of the refractive index of the colorful film layer is reduced, and the processing technology is cumbersome. Achieve the effect of saving raw materials and shortening processing procedures

Active Publication Date: 2019-12-20
深圳市旭意嘉鸿科技开发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The traditional colorful film is made of composite plastic film by melting and extruding two or more resins with different refractive indices and stacking at least 100 layers at intervals. Since this process must go through the melt extrusion process, different refractive index There will be partial mixing between the index resin melts, which will reduce the difference in refractive index between the layers of the colorful film, so it is necessary to stack more layers of resin films to achieve a good light effect, and the processing technology is cumbersome.
For example, the patent application number CN021590-49.4 discloses a multi-layer optical interference iridescent film and its preparation method. The iridescent film is composed of more than 70 layers of A layer and B layer composed of a resin core layer. The processing technology is cumbersome and requires more raw material

Method used

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  • Film plating method for forming colorful films through PET films, and application of PET films to glass cover plates

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A method for coating a PET film to form a colorful film, comprising the following steps:

[0025] S1: Pretreatment of PET film: use 120nm PET film as the substrate, immerse it in the pretreatment solution for 3 hours to seal the irregular micropores and defects on the surface of the PET film, and dry at 60°C for 1 hour;

[0026] The pretreatment liquid includes the following components in parts by weight: 20 parts of nano-alumina sol, 10 parts of polyether modified silicone oil, 5 parts of heptadecafluorodecyltriethoxysilane, 1 part of sodium lauryl sulfate, emulsified 0.5 part of agent;

[0027] S2: Coating modified PMMA resin film: After pretreatment, one side of the PET film is coated with fluorine-silicon modified methacrylic acid emulsion, cured at 60°C to form a modified PMMA resin film, and the thickness of the film layer is controlled to 100nm to obtain PET / PMMA Composite film;

[0028] S3: Repeat steps S1 and S2 to obtain 30 groups of PET / PMMA composite films...

Embodiment 2

[0031] A method for coating a PET film to form a colorful film, comprising the following steps:

[0032] S1: Pretreatment of PET film: use 140nm PET film as the substrate, immerse it in the pretreatment solution for 6 hours to seal the irregular micropores and defects on the surface of the PET film, and dry at 60°C for 1 hour;

[0033] The pretreatment liquid includes the following components by weight: 25 parts of nano-alumina sol, 15 parts of polyether modified silicone oil, 7.5 parts of heptadecafluorodecyltriethoxysilane, 2 parts of fatty alcohol polyoxyethylene ether, emulsified Dosage TX-1001 part;

[0034] S2: Coating modified PMMA resin film: After pretreatment, one side of the PET film is coated with fluorine-silicon modified methacrylic acid emulsion, cured at 60°C to form a modified PMMA resin film, and the thickness of the film layer is controlled to 110nm to obtain PET / PMMA Composite film;

[0035] S3: Repeat steps S1 and S2 to obtain 35 groups of PET / PMMA compo...

Embodiment 3

[0038] A method for coating a PET film to form a colorful film, comprising the following steps:

[0039] S1: Pretreatment of PET film: use 150nm PET film as the substrate, immerse it in the pretreatment solution for 6 hours to seal the irregular micropores and defects on the surface of the PET film, and dry at 60°C for 1 hour;

[0040] The pretreatment liquid includes the following components in parts by weight: 30 parts of nano-alumina sol, 20 parts of polyether modified silicone oil, 10 parts of heptadecafluorodecyl triethoxysilane, 3 parts of sodium alkyl sulfosuccinate , emulsifier TX-1002 parts;

[0041] S2: Coating modified PMMA resin film: After pretreatment, one side of the PET film is coated with fluorine-silicon modified methacrylic acid emulsion, cured at 60°C to form a modified PMMA resin film, and the thickness of the film layer is controlled to 100nm to obtain PET / PMMA Composite film;

[0042] S3: Repeat steps S1 and S2 to obtain 40 groups of PET / PMMA composite...

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Abstract

The invention discloses a film plating method for forming colorful films through PET films, and application of the PET films to glass cover plates. The film plating method comprises the following steps: S1, one of the PET films is pretreated, specifically, the 120-180 nm PET film serves as a substrate, and is impregnated in pretreatment liquid for 3-6 h so as to close irregular micro-holes and defects in the surface of the PET film, and drying is conducted for 1 h at 60 DEG C; S2, a modified PMMA resin film is smeared and plated, specifically, a fluorosilicone modified methacrylic acid emulsion is smeared and plated on one side of the pretreated PET film and solidified at 60 DEG C to form the modified PMMA resin film, the film layer thickness is controlled to be 100-150 nm, and a PET / PMMAcomposite film is obtained; S3, operation processes of the step S1 and the step S2 are repeated, and 25-40 sets of PET / PMMA composite films are obtained; and S4, the 25-40 sets of PET / PMMA composite films are overlaid in the mode that the sides plated with the PMMA composite films are upward or downward, and hot-extruded at 100 DEG C to form the multiple layers of optical interference colorful films. A process does not need a melting extrusion procedure, the good optical effect can be achieved only by overlaying the 25-40 sets of PET / PMMA composite films, the processing procedure is greatly shortened, and meanwhile a large number of raw materials are saved.

Description

technical field [0001] The invention belongs to the technical field of PET film processing, and in particular relates to a film coating method for forming a colorful film from a PET film and its application in glass cover plates. Background technique [0002] Dazzling film is also called iridescent film, colorful film, magic film, laser iridescent film, due to the different materials of multi-layer film, the refractive index is different, using the principle of light interference, under the irradiation of light, the refraction and interference between layers can be selected The multi-angle layered color changes between them produce a rainbow-like effect in the sky. At the same time, at different distances and different angles, the colorful film substrate will show completely different colorful effects due to its rich light effects. [0003] The traditional colorful film is made of composite plastic film by melting and extruding two or more resins with different refractive in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/06B32B27/36B29D7/01C08J7/04C08L67/02C09D133/12C09D183/12C09D7/61C09D7/63
CPCB29D7/01B32B27/08B32B27/36B32B2255/10B32B2255/26B32B2307/418B32B2457/00C08J2483/12
Inventor 李刚
Owner 深圳市旭意嘉鸿科技开发有限公司
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