Explosion-proof film for glass backboards

A glass backplane, explosion-proof film technology, applied in the direction of film/flake adhesives, coatings, adhesive additives, etc. The effect of market competitiveness

Inactive Publication Date: 2020-02-18
DONGGUAN HANGDA ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the high intensity of the current laser engraving machine, it is easy to cause the laser intensity to be too high and break down the entire explosion-proof membrane
However, if the laser intensity is reduced by other means, it will not only be troub

Method used

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  • Explosion-proof film for glass backboards
  • Explosion-proof film for glass backboards
  • Explosion-proof film for glass backboards

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] The substrate layer 1 adopts a TPU optical substrate film with a thickness of 100 microns.

[0030] The components in the optical adhesive layer 2 and the weight ratio of each component are:

[0031]

[0032] The acrylate is epoxy methacrylate, the modifier is methacrylic acid, and the curing agent is isocyanate.

[0033] The release film 3 is a PET release film with a thickness of 100 microns. The electroplating layer is coated with aluminum powder, and the protective layer is a black ink layer.

[0034] When engraving with a laser engraving machine, a laser with a wavelength of 300nm–400nm is used, and 75% of the laser can be blocked by an anti-ultraviolet blocker, thereby greatly reducing the intensity of the laser, and at the same time ensuring that the laser passing through the optical adhesive layer 2 The engraving of the electroplating layer 4 can be completed.

[0035] The products described are as follows:

[0036] The total thickness of the whole produc...

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PUM

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Abstract

The invention relates to the technical field of protective film products, and in particular, relates to an explosion-proof film for glass backboards, wherein the explosion-proof film comprises a basematerial layer; an optical adhesive layer and a release film are sequentially attached to the upper surface of the base material layer, and an electroplated layer and a protective layer are sequentially attached to the lower surface of the base material layer; the optical adhesive layer adopts a thermocuring optical adhesive coating layer, and an anti-ultraviolet blocking agent and a pigment are added into the optical adhesive layer; the protective layer is a black film layer. The explosion-proof film can be applied to the glass backboards of electronic products such as mobile phones, not onlyhas the effect of protecting the glass backboards, but also can be used as a pattern forming carrier of the glass backboards, and laser-engraved patterns can be directly transmitted through the glassbackboards. The anti-ultraviolet blocking agent is added into the optical adhesive layer, so that when the patterns are engraved by laser, the anti-ultraviolet blocking agent can block the laser to acertain extent, the explosion-proof film is prevented from being broken down, and meanwhile, the phenomenon that patterns are discontinuous due to the fact that the laser intensity is too low can beprevented.

Description

Technical field: [0001] The invention relates to the technical field of protective film products, in particular to an explosion-proof film used in a glass backplane. Background technique: [0002] In the current mobile communication terminal products, the back plate of the product is also beginning to use glass material. Since the glass material is usually a transparent material, for the beauty of the product, it is necessary to spray or print various colors or patterns on the inner surface of the glass back cover. However, since the surface of the 3D-shaped glass will form a certain curved surface, it is difficult to form a pattern on the inner surface of the 3D glass back cover by spraying, transfer printing, etc. In addition, using a 3D glass back cover to replace the traditional metal or plastic back cover will also bring about another problem, that is, even if the glass material is tempered, its anti-drop ability is still weak. Explosion may cause certain damage to the...

Claims

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Application Information

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IPC IPC(8): C09J7/25C09J7/30C09J4/02C09J11/06C08J7/04C08L75/04
CPCC08J7/04C08J2375/04C09J4/00C09J11/06C09J2467/006C09J2475/006C09J7/25C09J7/255C09J7/30
Inventor 洪立志
Owner DONGGUAN HANGDA ELECTRONICS
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