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Solvent-friction-corrosion-resistant scratch-resistant black shading edge-covered conductive cloth adhesive tape

A technology of friction corrosion and conductive cloth, applied in the direction of conductive adhesives, adhesives, adhesive types, etc., can solve the problems of poor solvent resistance, low yield rate, easy rebound and warping, etc.

Inactive Publication Date: 2021-05-28
湖南弘擎电子材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The traditional LCD edge-wrapping blackout tape uses PET as the base material, one side is coated with anti-fingerprint insulating light-shielding ink, and the other side is coated with ordinary light-shielding adhesive. If it is exported, too much static electricity will lead to screen touch disorder; 2. The edge wrapping needs to be bent, but PET is used as the base material, and its stress is large, and it is easy to rebound and warp after bending; 3. PET as the base material If the material is used, the stress rebound must be considered, so the thickness is greatly limited. If the thickness is too thin, it is very soft and easy to break, resulting in difficulty in assembly and low yield rate; 4. The ink coating is poor in solvent resistance and can only withstand A single alcohol solvent and not scratch-resistant. The friction resistance of ordinary inks to alcohol solvents is as follows: the load of the friction tester is 500g, the reciprocating speed is 42m / min, and the ink surface is completely destroyed immediately after 10 reciprocations. As for the strong corrosive solvents Non-resistance, melts at one touch
The above shortcomings are caused by the defects of the PET substrate and the ink itself

Method used

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  • Solvent-friction-corrosion-resistant scratch-resistant black shading edge-covered conductive cloth adhesive tape

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0029] The preparation method of the ink layer 10 includes the following steps: adding each component into a high-speed stirring disperser according to the above ratio, keeping the stirring speed at 1000-1200 rpm, stirring for 20-30 minutes, standing and filtering to obtain a black solvent-resistant Scratch-resistant blackout ink.

[0030] The light-shielding adhesive layer 40 is a black conductive light-shielding adhesive layer, which is composed of the following components in mass percentage: 70-80% of high-viscosity and high-temperature-resistant acrylic glue; 5-10% of conductive material; 1-3% of isocyanate curing agent; black color 4-6% pulp; 10-15% diluent.

[0031] The conductive material is composed of the following components in mass percentage: 45-65% of superfine nickel powder; 35-55% of superfine silver powder.

[0032] The preparation method of the light-shielding adhesive layer 40 includes the following steps: adding each component into a high-speed stirring dis...

Embodiment 1

[0036] A solvent-resistant, friction-corrosion, scratch-resistant, black light-shielding and edge-wrapping conductive cloth 3 tape, the tape includes an ink layer 10, an anti-penetration layer 20, a conductive cloth 3, and a light-shielding adhesive layer 40; the ink layer 10 is arranged on the anti-penetration layer 20; the impermeable layer 20 is disposed above the conductive cloth 3; the conductive cloth 3 is disposed above the light-shielding adhesive layer 40.

[0037] The ink layer 10 is a black solvent-resistant and scratch-resistant shading ink layer, which is composed of the following components in mass percentage: 30% of nano-carbon black; 15% of polyurethane resin; 20% of solvent-resistant auxiliary agent; 5% of bridging agent, wetting 5% dispersant; 25% solvent; and 20-30% isocyanic acid crosslinking agent of the total amount of the above components.

[0038] The solvent-resistant auxiliary agent comprises the following components in mass percentage: 10-30% of nano...

Embodiment 2

[0047] A solvent-resistant, friction-corrosion, scratch-resistant, black light-shielding and edge-wrapping conductive cloth 3 tape, the tape includes an ink layer 10, an anti-penetration layer 20, a conductive cloth 3, and a light-shielding adhesive layer 40; the ink layer 10 is arranged on the anti-penetration layer 20; the impermeable layer 20 is disposed above the conductive cloth 3; the conductive cloth 3 is disposed above the light-shielding adhesive layer 40.

[0048] The difference from Example 1 is that the ink layer 10 is a black solvent-resistant and scratch-resistant shading ink layer, which is composed of the following components in mass percentages: 45% of nano-carbon black; 10% of polyurethane resin; 20% of solvent-resistant auxiliary agent %; bridging agent 5%, wetting and dispersing agent 5%; solvent 15%; also includes 20-30% isocyanic acid crosslinking agent of the total amount of the above components.

[0049] The solvent-resistant auxiliary agent comprises t...

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Abstract

The invention relates to the field of adhesive tapes, in particular to a solvent-friction-corrosion-resistant scratch-resistant black shading edge-covered conductive cloth adhesive tape which comprises an ink layer, an anti-permeation layer, conductive cloth and a shading adhesive layer; wherein the ink layer is arranged above the anti-permeation layer; the anti-permeation layer is arranged above the conductive cloth; and the conductive cloth is arranged above the shading adhesive layer. The solvent-friction-corrosion-resistant scratch-resistant black shading edge-covered conductive cloth adhesive tape provided by the invention is high in scratch resistance, and the problems of tightness between ink and conductive cloth and the permeability of the conductive cloth are effectively solved.

Description

technical field [0001] The invention relates to the field of adhesive tapes, in particular to a solvent-resistant, friction-corrosion, and scratch-resistant black light-shielding edge-wrapping conductive cloth adhesive tape. Background technique [0002] Adhesive tape is a roll-shaped adhesive tape made of paper, cloth, and plastic film as the base material, and then uniformly coated with elastomer-type pressure-sensitive adhesive or resin-type pressure-sensitive adhesive on the above-mentioned base material. Type paper (membrane) or silicon oil paper consists of three parts. [0003] The traditional LCD edge-wrapping blackout tape uses PET as the base material, one side is coated with anti-fingerprint insulating light-shielding ink, and the other side is coated with ordinary light-shielding adhesive. If it is exported, too much static electricity will lead to screen touch disorder; 2. The edge wrapping needs to be bent, but PET is used as the base material, and its stress ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J133/04C09J7/21C09J7/30C09J9/02C09D11/102C09D11/03
CPCC09J133/04C09J7/21C09J7/30C09J9/02C09D11/102C09D11/03C08K2003/0806C08K2003/0862C08K3/08
Inventor 方友黄世锋
Owner 湖南弘擎电子材料科技有限公司
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