A peep-proof flexible explosion-proof membrane and its preparation process

A preparation process and technology of explosion-proof membranes, which are applied in the direction of film/sheet-like adhesives and adhesives, can solve the problems of high flexural resistance, easy to warp, difficult to use, etc., and achieve a wide range of applications and good cushioning. , the effect of high flexibility

Active Publication Date: 2020-12-15
四川羽玺新材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the existing anti-spy films all use PRT substrates, and PET itself has high flex resistance, it is not easy to use on touch screen devices such as mobile phones, and there is a problem that the rear edge of the 2.5D / 3D curved screen is easy to warp. At the same time, due to the high hardness of PET and poor cushioning effect, it is easy to cause the problem that the protective film is not damaged when the mobile phone is dropped, but the mobile phone screen has been broken.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A peep-proof flexible explosion-proof film, comprising a TPU film, the upper surface of the TPU film is sequentially provided with a protective layer, a high refractive index hardening layer; the lower surface of the TPU film is provided with an anti-peep layer, a silicone pressure Sensitive adhesive layer, release layer;

[0028] Among them, the thickness of the TPU film is 50 μm, the light transmittance is 90%, and the haze is less than 10%;

[0029] Among them, the high refractive index hardened layer has a refractive index of 1.57 and a thickness of 2 μm;

[0030] Among them, the anti-peeping layer is made of polyurethane material mixed with phthalocyanine pigment, and the mass percentage of phthalocyanine pigment is 0.01%; the surface of the anti-peeping layer is provided with parallelepipedic lines, and the side length of parallelepipedic lines is 3mm. The line width is 2 μm, the line depth is 3 μm, the angle between the straight side and the hypotenuse is 120°, ...

Embodiment 2

[0039] A peep-proof flexible explosion-proof film, comprising a PP film, the upper surface of the PP film is sequentially provided with a protective layer and a high refractive index hardening layer; the lower surface of the PP film is sequentially provided with a peep-proof layer, a silicone pressure Sensitive adhesive layer, release layer;

[0040] Among them, the thickness of PP film is 100μm, the light transmittance is 85%, and the haze is less than 10%;

[0041] Among them, the high refractive index hardened layer has a refractive index of 1.58 and a thickness of 3 μm;

[0042] Among them, the anti-peeping layer is made of polyurethane material mixed with phthalocyanine pigments, and the mass percentage of phthalocyanine pigments is 0.05%; the surface of the anti-peeping layer is provided with parallelepiped lines, and the side length of the parallelepiped lines is 3mm. The width is 2 μm, the line depth is 3 μm, the angle between the straight side and the hypotenuse is 1...

Embodiment 3

[0051] A peep-proof flexible explosion-proof film, comprising a PO film, the upper surface of the PO film is sequentially provided with a protective layer and a high refractive index hardening layer; the lower surface of the PO film is provided with a peep-proof layer, a silicone pressure layer, and Sensitive adhesive layer, release layer;

[0052] Among them, the thickness of PO film is 150μm, the light transmittance is 86%, and the haze is less than 10%;

[0053] Among them, the high refractive index hardened layer has a refractive index of 1.59 and a thickness of 4 μm;

[0054] Among them, the anti-peeping layer is made of polyurethane material mixed with phthalocyanine pigments, and the mass percentage of phthalocyanine pigments is 0.08%; the surface of the anti-peeping layer is provided with parallelepiped lines, the side length of parallelepiped lines is 3mm, and the lines The width is 2 μm, the line depth is 3 μm, the angle between the straight side and the hypotenuse ...

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Abstract

The invention discloses an anti-peep flexible explosion-proof film, which comprises a flexible film; the upper surface of the flexible film is sequentially provided with a protective layer and a highrefractive index hardening layer from top to bottom; the lower surface of the flexible film is sequentially provided with an anti-peep layer, an organosilicone pressure-sensitive adhesive layer and arelease layer from top to bottom, wherein the surface of the anti-peep layer is provided with a parallel hexagon grain with the edge length being 3mm, the line width being 2 microns and the line depthbeing 3 microns, an included angle between a straight edge and a corresponding inclined edge is 120 degrees, and an included angle between an inclined edge and a corresponding inclined edge is 60 degrees; and the anti-peep layer is prepared by adopting a polyurethane material mixed with a phthalocyanine pigment. The anti-peep flexible explosion-proof film has very high flexibility, can exert better buffering performance in the process that a mobile phone drops, is wide in application range, can be suitable for various electronic screens and is particularly suitable for 2.5D and 3D arch-shapedscreens.

Description

technical field [0001] The invention belongs to the technical field of explosion-proof membranes, and in particular relates to a peep-proof flexible explosion-proof membrane and a preparation process thereof. Background technique [0002] In the process of work, life, entertainment, and communication, in order to help people use electronic products such as computers to leak screen information and cause commercial losses, more and more anti-spy films are appearing on the market. Since the initial definition of privacy protection film was to protect the computer screen, PET was used as the base material. [0003] At present, smart phones have become people's basic daily necessities, which are related to various aspects of personal life, such as communication, entertainment, consumption, etc., and therefore involve more personal privacy. Since the existing anti-spy films all use PRT substrates, and PET itself has high flex resistance, it is not easy to use on touch screen devi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J7/29
CPCC09J2423/046C09J2423/106C09J2475/006C09J7/29C09J2301/122
Inventor 王中正邬艺金军强陈仁秀许显成
Owner 四川羽玺新材料股份有限公司
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