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Polyurethane synthetic leather for high-grade electronic packages and certificates

A technology of polyurethane and synthetic leather, which is applied in application, leather surface treatment, small raw leather/large raw leather/leather/fur treatment, etc. It can solve the problems of unsatisfactory high-end electronic product packaging leather, hardening, and uneven quality of synthetic leather. , to achieve an excellent protective effect

Active Publication Date: 2015-01-21
ANHUI ANLI MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the quality of synthetic leather for electronic packaging on the market is generally uneven. Ordinary packaging leather will become hard, cracked and polluted during use, and the environmental protection does not meet RoHS requirements, and the touch and antifouling properties are not ideal. , unable to meet the needs of high-end electronic product packaging leather

Method used

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  • Polyurethane synthetic leather for high-grade electronic packages and certificates

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] 1) Mix 40 parts of silicone-modified polyurethane prepolymer, 10 parts of polyisocyanate and 1.5 parts of accelerator triethylenediamine and stir evenly to obtain a colorless and transparent slurry with a viscosity of 500CPS / 25°C;

[0027] 2) the above-mentioned colorless transparent slurry is coated on the outer surface of the polyurethane synthetic leather base with 140 purpose printing rollers;

[0028] 3) Then dry it at 80°C and then cure it at 130°C for 5 minutes to obtain polyurethane synthetic leather.

[0029]

Embodiment 2

[0031] 1) Mix 80 parts of silicone-modified polyurethane prepolymer, 15 parts of polyisocyanate and 1.0 parts of accelerator dibutyltin dilaurate and stir evenly to obtain a colorless and transparent slurry with a viscosity of 800CPS / 25°C;

[0032] 2) the above-mentioned colorless transparent slurry is coated on the outer surface of the polyurethane synthetic leather base with 160 purpose printing rollers;

[0033] 3) Then dry it at 100°C and then cure it at 150°C for 3 minutes to obtain polyurethane synthetic leather.

[0034]

Embodiment 3

[0036] 1) Mix 100 parts of silicone-modified polyurethane prepolymer, 20 parts of polyisocyanate and 2 parts of accelerator stannous octoate and stir evenly to obtain a colorless and transparent slurry with a viscosity of 200CPS / 25°C;

[0037] 2) the above-mentioned colorless transparent slurry is coated on the outer surface of the polyurethane synthetic leather base with 120 purpose printing rollers;

[0038] 3) Then dry it at 90°C and then cure it at 140°C for 4 minutes to obtain polyurethane synthetic leather.

[0039] The performance indexes of the polyurethane synthetic leather prepared in the above examples 1-3 are compared with the existing polyurethane synthetic leather as shown in the following table:

[0040]

[0041] As can be seen from the above table, the polyurethane synthetic leather for high-grade electronic packaging and certificates of the present invention has excellent touch, yellowing resistance, and wear resistance compared with ordinary packaging leat...

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PUM

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Abstract

The invention discloses polyurethane synthetic leather for high-grade electronic packages and certificates. The polyurethane synthetic leather comprises a polyurethane synthetic leather base layer, wherein the outer surface of the polyurethane synthetic leather base layer is coated with a layer of colorless and transparent pulp, and then drying and curing are carried out to obtain the polyurethane synthetic leather; the colorless and transparent pulp is obtained by mixing and stirring a silicone-modified polyurethane prepolymer, polyisocyanate and an accelerant according to weight parts. The polyurethane synthetic leather disclosed by the invention has soft touch feel, has excellent yellowing resistance, wear resistance and antifouling property, has an excellent defending effect on pollution sources such as lipsticks, sweat stains, red wine, sunscreen cream and denim fabrics in the process of daily use, and simultaneously meets the requirement on environmental protection of European RoHS.

Description

technical field [0001] The invention relates to a production method of polyurethane synthetic leather, in particular to a production method of polyurethane synthetic leather for electronic packaging and certificates. [0002] Background technique [0003] With the rapid development of the fast-moving consumer electronics industry, the demand for electronic packaging and certificates, such as mobile phone cases, tablet computer cases, and packaging leather for other certificates, is increasing. Electronic products are generally carried around and are often in contact with the human body. Therefore, compared with traditional packaging leather, synthetic leather for electronic product packaging has higher requirements for tactility, antifouling performance and environmental protection. However, the quality of synthetic leather for electronic packaging currently on the market is generally uneven. Ordinary packaging leather will become hard, cracked and polluted during use, and ...

Claims

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Application Information

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IPC IPC(8): D06M15/564C14C11/00D06N3/14
Inventor 迟红梅阚道俊程艳西黄万里阮仁祥杜先炳阮华功芮永新
Owner ANHUI ANLI MATERIAL TECH
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