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Nano-silica modified high-pressure molding printing ink for two-component plastic

A technology of nano-silica and high-pressure molding, which is applied in the ink field to achieve the effects of good elasticity, good transparency, and improved weather resistance

Inactive Publication Date: 2018-09-04
深圳市科美达迈斯科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide high-pressure molding inks modified with nano-silica on two-component plastics, aiming to solve the defects in the inks used for screen printing of mobile phone shells in the prior art

Method used

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Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment example 1

[0070] Take the manufacture of 100 kilograms of white two-component plastics as an example with nano-silica-modified high-pressure forming inks.

[0071]Take: 40.0% of saturated polyester resin with low hydroxyl value, 17.5% of isophorone, 0.5% of polymer dispersant, 18.7% of rutile titanium dioxide, stir and mix the above materials in order, and the stirring speed is 800 rpm minutes, stir for 10 minutes, then increase the speed to 1600 rpm, slowly add 2.0% acrylate leveling agent, 1.3% acrylic defoamer, 1.5% UV absorber, and 1.5% hindered amine light stabilizer.

[0072] Stir and mix the above materials evenly while adding in order, stir at 800 rpm, stir for 10 minutes, then increase the rotating speed to 1600 rpm, slowly add 6.0% of nano-silica, 2.0% of fumed silica, to prevent Agglomerate, after feeding is completed, stir at 1600 rpm for another 20 minutes until uniform, grind on a three-roller machine to a fineness of ≤5um, and pack. Add the remaining 9.0% curing agent wh...

specific Embodiment example 2

[0074] Take the high-pressure molding ink modified with nano-silica on the 100KG black two-component plastic as an example.

[0075] Take: 42.5% of saturated polyester resin with low hydroxyl value, 24.0% of isophorone, 1.5% of dispersant, 10.0% of carbon black, stir and mix the above materials in order, and the stirring speed is 800 rpm, stirring After 10 minutes, increase the speed to 1600 rpm, slowly add 1.5% acrylate leveling agent, 2.0% acrylic defoamer, 0.5% ultraviolet absorber, and 0.5% hindered amine light stabilizer.

[0076] Stir and mix the above materials evenly while adding in order, stir at 800 rpm, stir for 10 minutes, then increase the rotating speed to 1600 rpm, slowly add 7% nano-silica, 1% fumed silica, to prevent Agglomerate, after feeding is completed, stir at 1600 rpm for another 20 minutes until uniform, grind on a three-roller machine to a fineness of ≤5um, and pack. Add the remaining 9.5% curing agent when used.

specific Embodiment example 3

[0078] Take the high-pressure molding ink modified with nano-silica on the manufacture of 100KG red two-component plastic as an example.

[0079] Take: 45.0% of low hydroxyl value saturated polyester resin polyester, 20.0% of isophorone, 1.0% of dispersant, 12.0% of permanent red, stir and mix the above materials in order, and the stirring speed is 800 rpm Minutes, stirring for 10 minutes, then increase the speed to 1600 rpm, slowly add 1.0% acrylate leveling agent, 1.0% acrylic defoamer, 1.0% ultraviolet absorber, 1.0% hindered amine light stabilizer.

[0080] Stir and mix the above materials evenly while adding in order, stir at 800 rpm, stir for 10 minutes, then increase the rotating speed to 1600 rpm, slowly add 6.5% of nano-silica, 1.5% of fumed silica, to prevent Agglomerate, after feeding is completed, stir at 1600 rpm for another 20 minutes until uniform, grind on a three-roller machine to a fineness of ≤5um, and pack. Add the remaining 10.0% curing agent when used. ...

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Abstract

The invention discloses nano-silica modified high-pressure molding printing ink for two-component plastic, belonging to the technical field of printing ink. The nano-silica modified high-pressure molding printing ink comprises, by weight, 40% to 45% of polyester resin, 17.5% to 24% of a solvent, 0.5% to 1.5% of a dispersing agent, 10.0% to 18.7% of pigment, 6% to 7% of a matting agent which includes nano-silica, 1% to 2% of an anti-settling agent, 1% to 2% of a leveling agent, 1% to 2% of a defoaming agent,1% to 3% of an UV aid and 9% to 10% of a curing agent. The nano-silica modified high-pressure molding printing ink for two-component plastic has good hand feeling, excellent fineness, fast curing speed, strong adhesion, high stretchability, soft gloss, excellent resistance to alcohol andwater, high dyne value and good weather resistance.

Description

technical field [0001] The invention relates to the technical field of inks, in particular to high-pressure molding inks modified with nanometer silicon dioxide on two-component plastics. Background technique [0002] Mobile phone is an essential equipment in personal daily life, which is mainly used for communication, and with the continuous development of mobile phone and Internet technology, the use of mobile phone covers almost all the needs in life. [0003] In recent years, the shell of the mobile phone has been sprayed after injection molding, and turned to PC film or PC and PMMA composite film material, which is screen printed first and then hot-pressed. In this way, the manufacturing injection molding cost of the shell can be greatly reduced. The color and texture are more beautiful, rich in color and varied. [0004] In the prior art, the casing of the mobile phone is screen-printed with ink during the manufacturing process, which has many defects, such as poor ha...

Claims

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Application Information

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IPC IPC(8): C09D11/104C09D11/03C09D11/037
CPCC09D11/03C09D11/037C09D11/104
Inventor 柏跃松
Owner 深圳市科美达迈斯科技有限公司
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