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3D protective film and preparation process thereof

A preparation process and technology of protective film, applied in the field of 3D protective film and its preparation process, can solve the problems of low production efficiency, poor tensile strength, lack of availability, etc., to improve the repair effect, lasting antibacterial properties, and reduce the coefficient of friction. Effect

Active Publication Date: 2020-12-01
SHENZHEN FANCY OPTICAL MATERIAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The research found that there are the following technical problems: 1) TPU film does not have good self-healing performance, poor tensile strength, and antibacterial performance is not durable enough; 2) There is no matching double-sided lamination hot pressing equipment, which makes the production efficiency low, The produced 3D protective film does not have good fineness and sealing effect

Method used

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  • 3D protective film and preparation process thereof
  • 3D protective film and preparation process thereof
  • 3D protective film and preparation process thereof

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Experimental program
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Effect test

Embodiment 1

[0034] refer to Figure 1-5 As shown, a 3D protective film of this embodiment includes a dumb film layer from top to bottom, a first OCA adhesive layer, a grating layer, a self-repairing TPU film layer, a second OCA adhesive layer, a high-viscosity silica gel layer, a fluorine Plain release film; the thickness of the dumb film and fluorine release film is 40-60 μm, the thickness of the first OCA adhesive layer and the second OCA adhesive layer is 15-18 μm, and the thickness of the self-healing TPU film is 100 -160μm, the thickness of the high-viscosity silicone layer is 18-25μm, and the grating layer is grid-like stripes arranged evenly.

[0035] The self-healing TPU film layer is obtained by coating and solidifying the self-healing TPU mixture. The preparation method of the self-healing TPU mixture is as follows: according to parts by weight, 95 parts of hot-melt grade TPU, 7 parts of white carbon black, and 7 parts of propylene glycol butyl Add ether, 0.6 parts of molybdenu...

Embodiment 2

[0049] refer to Figure 1-5 As shown, a 3D protective film of this embodiment includes a dumb film layer from top to bottom, a first OCA adhesive layer, a grating layer, a self-repairing TPU film layer, a second OCA adhesive layer, a high-viscosity silica gel layer, a fluorine Plain release film; the thickness of the dumb film and fluorine release film is 40-60 μm, the thickness of the first OCA adhesive layer and the second OCA adhesive layer is 15-18 μm, and the thickness of the self-healing TPU film is 100 -160μm, the thickness of the high-viscosity silicone layer is 18-25μm, and the grating layer is grid-like stripes arranged evenly.

[0050] The self-healing TPU film layer is obtained by coating and solidifying the self-healing TPU mixture. The preparation method of the self-healing TPU mixture is as follows: according to parts by weight, 88 parts of hot-melt grade TPU, 6 parts of white carbon black, 9 parts of propylene glycol butane Add ether, 0.7 parts of molybdenum d...

Embodiment 3

[0055] refer to Figure 1-5 As shown, a 3D protective film of this embodiment includes a dumb film layer from top to bottom, a first OCA adhesive layer, a grating layer, a self-repairing TPU film layer, a second OCA adhesive layer, a high-viscosity silica gel layer, a fluorine Plain release film; the thickness of the dumb film and fluorine release film is 40-60 μm, the thickness of the first OCA adhesive layer and the second OCA adhesive layer is 15-18 μm, and the thickness of the self-healing TPU film is 100 -160μm, the thickness of the high-viscosity silicone layer is 18-25μm, and the grating layer is grid-like stripes arranged evenly.

[0056] The self-healing TPU film layer is obtained by coating and solidifying the self-healing TPU mixture. The preparation method of the self-healing TPU mixture is as follows: according to parts by weight, 90 parts of hot-melt grade TPU, 8 parts of white carbon black, and 9 parts of propylene glycol butyl Add ether, 0.7 parts of molybdenu...

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Abstract

The invention discloses a 3D protective film and a preparation process thereof. The protective film comprises a matt film layer, a first OCA adhesive layer, a grating layer, a self-repairing TPU filmlayer, a second OCA adhesive layer, a high-viscosity silica gel layer and a fluorine release film layer from top to bottom. The self-repairing TPU film layer is made of coating hot-melt grade TPU withgood tensile strength, elongation at break and tearing strength, white carbon black is used as a reinforcing adhesive, propylene glycol butyl ether is used as a dispersing agent, and molybdenum disulfide is used as a lubricating agent, so that the coated hot-melt grade TPU obtains a good lubricating effect, the friction coefficient is greatly reduced, and the repairing effect is improved. The antibacterial filler adopts alkalized beta-cyclodextrin to wrap silver nitrate, so that silver ions can be slowly released to achieve a lasting antibacterial property, the arc-shaped grating layer structure enables the 3D protective film to show a good stereoscopic visual effect after being applied to an electronic product.

Description

technical field [0001] The invention relates to the technical field of screen protective films, in particular to a 3D protective film and a preparation process thereof. Background technique [0002] With the popularization of touch screens of electronic products, the screen becomes the place of operation, and the operation for a long time may inevitably cause operation on the screen. Therefore, people usually paste a protective film on the screen. The early protective films were relatively simple, without any special structure, and did not have the function of preventing the screen from being broken. With the development of the screen, tempered film, 2.5D tempered film, 3D tempered film, etc. have appeared. This kind of protective film can not only prevent the screen from being scratched, but also has a certain anti-drop ability, and at the same time, the fit with the screen has also been greatly improved. promote. [0003] The prior art (CN108116020A) discloses a 3D curve...

Claims

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Application Information

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IPC IPC(8): C09J7/29C08L75/04C08K13/06C08K7/26C08K3/30C08K9/10C08K3/28C08K5/06
CPCC08K3/28C08K3/30C08K5/06C08K7/26C08K9/10C08K13/06C08K2003/3009C08K2201/005C08K2201/006C09J2475/006C09J7/29C08L75/04
Inventor 余正波
Owner SHENZHEN FANCY OPTICAL MATERIAL TECH CO LTD
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