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Thermally induced viscosity-decreasing meshed protective film

A protective film, thermally induced technology, applied in the direction of adhesive types, ester copolymer adhesives, polymer adhesive additives, etc., can solve the problems of residual glue, affecting product quality, affecting product quality and aesthetics, etc. Achieving good effect, low cost and best use effect

Active Publication Date: 2017-09-15
惠州市科域新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Protective film In the prior art, the protective film is flat and smooth, and it is easy to have residual air when the machine is automatically pasted, which is not completely discharged and remains between the protected material and the protective film to generate air bubbles, resulting in the protective film not being perfectly pasted. Flat, affecting product quality; In addition, after the protective film is torn off, there will be bubble marks in the place where the bubbles are formed, and there may be residual glue after a long time, which affects the quality and appearance of the product

Method used

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  • Thermally induced viscosity-decreasing meshed protective film
  • Thermally induced viscosity-decreasing meshed protective film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Step 1: Prepare modified polyacrylate glue:

[0035] Weighing by weight: modified polyacrylate: 40 parts, ethyl acetate: 49.6 parts, isocyanate: 6 parts, polyaniline: 0.4 parts, polymerized rosin ester: 4 parts, heat-induced viscosities: 6 parts. Stir and mix the above raw materials for 30 minutes at a rotation speed of 400 rpm, then filter through a pore size of 50-100 mesh, let stand for 60 minutes, and detect that the solid content is 24.4 parts, and set aside;

[0036] Step 2: Preparation of heat-induced non-adhesive textured protective film:

[0037] Unwind the PET film, the unwinding tension is 50N, and then brush the polyaniline antistatic liquid on both sides of the PET film, and the brushing amount is 0.005g / cm 2 , then dry, and then apply the modified polyacrylate glue prepared in the first step on the PET film coated with antistatic liquid, the thickness of the glue layer is 20 μm, dry at low temperature, and the drying temperature gradient is: 40°C , 50°C,...

Embodiment 2

[0039] Step 1: Prepare modified polyacrylate glue:

[0040] Weighing by weight: modified polyacrylate: 35 parts, ethyl acetate: 43.7 parts, isocyanate: 5 parts, polythiophene: 0.3 parts, polymerized rosin ester: 8 parts, heat-induced viscosities: 8 parts. Stir and mix the above raw materials for 30 minutes at a rotation speed of 400 rpm, then filter through a pore size of 50-100 mesh, let stand for 60 minutes, and detect that the solid content is 23.8 parts, and set aside;

[0041] Step 2: Preparation of heat-induced non-adhesive textured protective film:

[0042] Unwind the PET film, the unwinding tension is 50N, and then brush the polyaniline antistatic liquid on both sides of the PET film, and the brushing amount is 0.005g / cm 2 , then dry, and then apply the modified polyacrylate glue prepared in the first step on the above-mentioned PET film coated with antistatic liquid. The thickness of the glue layer is 16 μm, and dry at low temperature. The temperature gradient of dry...

Embodiment 3

[0044] Step 1: Prepare modified polyacrylate glue:

[0045] Weighing by weight: modified polyacrylate: 30 parts, ethyl acetate: 45.7 parts, isocyanate: 4 parts, polybenmidazole: 0.3 part, polymerized rosin ester: 10 parts, heat-induced viscosities: 10 parts. Stir and mix the above raw materials for 30 minutes at a rotation speed of 400 rpm, then filter through a pore size of 50-100 mesh, let stand for 60 minutes, and detect that the solid content is 23.3 parts, and set aside;

[0046] Step 2: Preparation of heat-induced non-adhesive textured protective film:

[0047] Unwind the PET film, the unwinding tension is 50N, and then brush the polyaniline antistatic liquid on both sides of the PET film, and the brushing amount is 0.005g / cm 2 , then dry, and then apply the modified polyacrylate glue prepared in the first step on the PET film coated with antistatic liquid, the thickness of the glue layer is 14 μm, dry at low temperature, and the drying temperature gradient is: 40° , 5...

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Abstract

The invention discloses a thermally induced viscosity-decreasing meshed protective film which comprises a PET (Polyethylene Terephthalate) film layer, a PE (Polyethylene) spraying film mesh layer, a silicone oil layer, a glue layer, a conductive layer and a PET base material layer which are arranged from top to bottom, wherein the glue layer is a modified polyacrylate glue layer. The protective film disclosed by the invention has a function of automatic dropping after heating and does not need to be stripped manually or by a robot. In addition, the protective film has a network structure, the mesh surface has an automatic exhaust effect during use, the protective film can be completely flushed, and residual glue is avoided after the film is stripped.

Description

technical field [0001] The invention relates to the field of protective films, in particular to a heat-induced non-adhesive textured protective film. Background technique [0002] During the die-cutting process of metal plates, plastic plates, touch screens, multi-layer ceramic films, wafers and other materials, the surface is prone to contact pollution or scratches, so a protective film is usually used to cover the surface to prevent it from damaged and polluted. After the die-cutting process is finished, the protective film is peeled off manually or by robots. Therefore, how to peel off the protective film conveniently and efficiently to improve production efficiency is a technical problem that needs to be solved urgently in the process of die-cutting. [0003] Protective film In the prior art, the protective film is flat and smooth, and it is easy to have residual air when it is automatically pasted by the machine. It is not completely exhausted and remains between the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B3/12B32B7/06B32B7/12B32B27/36B32B27/08B32B27/32B32B27/06B32B33/00C09J133/04C09J11/08
CPCB32B3/12B32B7/06B32B7/12B32B27/06B32B27/08B32B27/32B32B27/36B32B33/00B32B2255/10B32B2255/26B32B2307/202B32B2307/21C08L2205/03C09J11/08C09J133/04C08L79/02C08L93/04C08L65/00C08L79/04
Inventor 黄金黄瑞泉
Owner 惠州市科域新材料科技有限公司
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