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Laser silver paste used for capacitive touch screen as well as preparation method and use method for laser silver paste

A capacitive touch screen and laser technology, which is applied in the direction of cable/conductor manufacturing, circuit, electrical components, etc., can solve the problem of narrow frame circuit design, etc., and achieve the effect of good resistance uniformity, simple process and reasonable formula

Inactive Publication Date: 2015-12-09
DONGGUAN DOMAL ELECTRONICS SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the continuous improvement of consumers' requirements for consumer electronic products, in the production process of capacitive touch screens, the frame design is getting narrower and narrower, and the requirements for silver paste wiring are also getting higher and higher. Printing silver paste has been difficult to meet in The frame design requirements, now in order to meet the frame design requirements, it is necessary to develop a suitable laser laser silver paste

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Embodiment 1: A kind of capacitive touch screen laser silver paste provided by this embodiment, its raw material includes the following components in weight and number ratio: 60 parts of silver powder, 7 parts of resin, 23 parts of solvent, 2 parts of toner, auxiliary agent 1 serving.

[0028] A preparation method for preparing the above-mentioned capacitive touch screen laser silver paste, which comprises the following steps:

[0029] (1) Mix the resin and the solvent, heat and stir for 2 to 4 hours, and obtain the mixed liquid after stirring evenly;

[0030] (2) After the mixture is cooled, add silver powder, toner and additives to the mixture, stir with a mixer at high speed for 20 to 40 minutes, and obtain a slurry after stirring evenly;

[0031] (3) Put the slurry into a grinder for grinding, and then filter to obtain a capacitive touch screen laser silver paste product.

[0032] (4) Put the capacitive touch screen laser silver paste product into the jar and seal...

Embodiment 2

[0038] Embodiment 2: A kind of capacitive touch screen laser silver paste provided by this embodiment and its preparation and use method are basically the same as Embodiment 1, the difference is that the weight and number ratio of each component of the raw materials is different, and its raw materials include Components in the following parts by weight ratio: 72 parts of silver powder, 6 parts of resin, 22 parts of solvent, 3 parts of toner, and 2 parts of auxiliary agent.

Embodiment 3

[0039] Embodiment 3: A kind of capacitive touch screen laser silver paste provided by this embodiment and its preparation and use method are basically the same as Embodiment 1, the difference is that the weight and number ratio of each component of the raw materials is different, and its raw materials include Components in the following parts by weight ratio: 80 parts of silver powder, 8 parts of resin, 25 parts of solvent, 2.5 parts of toner, and 5 parts of auxiliary agent.

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Abstract

The invention discloses laser silver paste used for a capacitive touch screen as well as a preparation method and a use method for the laser silver paste. The laser silver paste used for the capacitive touch screen comprises the following raw materials in parts by weight: 60-80 parts of silver powder, 6-10 parts of resin, 22-25 parts of solvent, 0.3-3 parts of toner and 1-5 parts of accessory ingredients, wherein the grain diameter of the silver powder is 0.0005-0.0015 mm. The laser silver paste used for the capacitive touch screen is reasonable in formula, the printing thickness can be controlled to be 4-6 microns, and the laser silver paste is good in resistance uniformity, strong in adhesive force and high in stability; the preparation method provided by the invention is simple in process, easy to implement, and greatly shortens the production period and effectively improves the production efficiency; the use method provided by the invention is simple in process, and the laser silver paste can be attached to the majority of ITO membrane materials and glass substrates; in addition, the laser silver paste is excellent in adhesive force, capable of passing the adhesion test, good in working performance and easy to implement; and the working efficiency is effectively improved, so that the laser silver paste used for the capacitive touch screen can be widely applied.

Description

technical field [0001] The invention belongs to the technical field of touch screen paste, and in particular relates to a capacitive touch screen laser silver paste and a preparation and application method thereof. Background technique [0002] With the continuous improvement of consumers' requirements for consumer electronics products, in the production process of capacitive touch screens, the frame line design is getting narrower and narrower, and the requirements for silver paste wiring are also getting higher and higher. Printing silver paste has been difficult to meet in The frame design requirements, now in order to meet the frame design requirements, it is necessary to develop a suitable laser laser silver paste. Because in the laser laser process, the adhesion of silver paste and laser requirements are relatively high, so the requirements for compatibility between resin and silver powder are higher. Contents of the invention [0003] In view of the above-mentioned...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B1/22H01B13/00G06F3/044
Inventor 周军
Owner DONGGUAN DOMAL ELECTRONICS SCI & TECH
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