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Thermosetting high temperature resisting printing ink for touch screen as well as preparation method of printing ink

A high-temperature-resistant, touch-screen technology, applied in ink, household utensils, applications, etc., can solve the problems of easy yellowing or cracking of the coating, and limit the sensitivity of the touch screen, and achieve good color retention, no cracks, and coating Membrane Intact Effect

Active Publication Date: 2013-12-11
深圳市卓联电子有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, commercially available touch screen inks generally use resin systems with good mechanical properties and chemical resistance such as poly(urethane) ester and epoxy resin as ink binders, but the coating is prone to yellowing or Cracking, thus limiting the use of high-temperature ITO coating process, which in turn limits the further improvement of touch screen sensitivity;

Method used

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  • Thermosetting high temperature resisting printing ink for touch screen as well as preparation method of printing ink
  • Thermosetting high temperature resisting printing ink for touch screen as well as preparation method of printing ink
  • Thermosetting high temperature resisting printing ink for touch screen as well as preparation method of printing ink

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] 1) Take 55 polyester modified silicone resin JY7200 (Dongguan Junyi Chemical Technology Co., Ltd.), 20g Tupont902 + Titanium dioxide (DuPont), 3g glass powder, 2g nano silicon dioxide, 1g isophorone, 1g No. 200 solvent oil, 0.3g BYK110 dispersant (BYK additive), 0.1g AFCONA3670 leveling agent (Efcona Chemical), add it into the dispersion tank, stir evenly, grind and disperse for 90min with a grinder at 2500rpm, and filter to obtain the main ingredient;

[0035] 2) Take 1g CYMEL303, 1g CYMEL325 crosslinking agent (Weng Kaier Co., Ltd.), 2g cyclohexanone, 0.5g KH550 coupling agent, 0.5g A187 coupling agent, 0.2g AFCONA-5010 dispersant (Efcona Chemical), 0.1g AFCONA3777s leveling agent (Efcona Chemicals) was added to the main agent, dispersed at 1000rpm for 30min, and then filtered out to obtain the ink product;

[0036] 3) Dilute the prepared high-temperature-resistant touch screen ink with a mixed diluent (mixed by isophorone and cyclohexanone at a mass ratio of 1:1) wi...

Embodiment 2

[0038] 1) Take 60g epoxy modified silicone resin HG-52 (Zhonghao Chenguang Chemical Research Institute Co., Ltd.), 10g Tiona-RCL69 titanium dioxide (Shanghai Jinghong Industry), 15g Tiona-595 titanium dioxide (Shanghai Jinghong Industry) , 5g glass powder, 2g nano-silica, 1g talc, 1g isophorone, 0.3g AFCONA5010 dispersant (Efcona Chemical), 0.3g AFCONA4010 dispersant (Efcona Chemical), 0.1g AFCONA3777s Add leveling agent (Efcona Chemicals) into the dispersion tank, stir evenly, grind and disperse for 90 minutes with a grinder at 2500rpm, and then filter to obtain the main agent;

[0039] 2) Take 2.25g CYMEL325 crosslinking agent (Weng Kaier Co., Ltd.), 2g DBE (diformate), 1g A-187 coupling agent, 1g KH550 coupling agent, 0.3g TEGO-628 dispersing agent (Dego Auxiliary), 0.1g AFCONA3670 leveling agent (Efcona Chemical), 0.05g GSK-716 defoamer (Gauss Fine Chemicals), added to the main agent, dispersed at 1200rpm for 30min, then filtered out to obtain ink products;

[0040]3) Di...

Embodiment 3

[0042] 1) Take 65g polyester modified silicone resin KE561 (Guangzhou Kanggujia Synthetic Materials Co., Ltd.), 30g Tiona-RCL69 titanium dioxide (Shanghai Jinghong Industry), 2g glass powder, 2g mica powder, 3g DBE (diformic acid Esters), 1g isophorone, 0.4g Silok7160 dispersant (Silok China Operation Center), 0.2g Silok-8144 leveling agent (Silok China Operation Center), add to the dispersion tank, stir well, Grind and disperse for 90 minutes at 2500rpm with a grinder, then filter to obtain the main agent;

[0043] 2) Take 3g CYMEL303 cross-linking agent (Weng Kaier Co., Ltd.), 1g cyclohexanone, 0.5g Z-6121 coupling agent (Dow Corning), 1g A187 coupling agent, 0.4g TEGO628 dispersant (Digo auxiliary) , 0.1g Silok-8244 leveling agent (Silok China Operation Center), 0.05g AFCONA2022 defoamer (Efcona Chemicals), add to the main agent, disperse at 1500rpm for 30min, filter and discharge to get the ink product ;

[0044] 3) Add the prepared high-temperature-resistant touch scree...

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Abstract

The invention discloses thermosetting high temperature resisting printing ink for a touch screen as well as a preparation method of the printing ink. The formula of the printing ink comprises the following raw materials in parts by weight: 55-65 parts of modified organic silicon resin, 20-30 parts of titanium dioxide, 5-15 parts of powder packing, 3-8 parts of a diluent, 0.5-1.4 parts of a dispersant, 0.1-0.3 part of a leveling agent, 0.05-0.1 part of a defoamer, 1-2 parts of a silane coupling agent and 2-5 parts of a curing agent. The preparation method comprises the following steps: mixing the modified organic silicon resin, a pigment, the powder packing, 0.35-0.95 part of the dispersant, 0.05-0.15 part of the leveling agent and 2-5.4 parts of the diluent to obtain a main agent; and adding the curing agent, the defoamer, the silane coupling agent as well as remaining leveling agent, dispersant and diluent into the main agent, and dispersing, filtering and discharging. The printing ink coating is high temperature- resisting in coating, excellent in color retention at a high temperature of 300 DEG C, good in adhesion to a base material, high in hardness, resistant to acetone wiping and resistant to ITO (Indium Tin Oxides) etching liquids.

Description

technical field [0001] The invention relates to the technical field of inks, in particular to a thermosetting heat-resistant touch screen ink and a preparation method thereof. Background technique [0002] At present, touch screens are widely used in smart phones, tablet computers, ultrabooks, touch screen 3D TVs and other fields. With the improvement of people's quality of life, the performance requirements for touch screens will become higher and higher; in the future, The production of large-size, high-precision, and super-sensitive touch screens will be the core competitiveness of touch screen companies; touch screen inks not only protect and decorate touch screens, but also directly affect the quality of ITO coatings. Bad, which has an important impact on the sensitivity of the touch screen; [0003] At present, commercially available touch screen inks generally use resin systems with good mechanical properties and chemical resistance such as polyurethane (urethane) es...

Claims

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Application Information

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IPC IPC(8): C09D11/10
Inventor 文秀芳胡杰皮丕辉蔡智奇徐守萍程江
Owner 深圳市卓联电子有限公司
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