Soft backing material for clothing leather and preparation method thereof

A garment leather and soft bottom technology, applied in the field of garment leather, can solve the problems of poor hand feeling and poor environmental protection of garment leather, and achieve the effects of improving softness, meeting environmental protection requirements, and good hand feeling

Inactive Publication Date: 2017-07-07
HEFEI KETIAN WATERBORNE TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a soft base material for garment leather and its preparation method,

Method used

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  • Soft backing material for clothing leather and preparation method thereof
  • Soft backing material for clothing leather and preparation method thereof
  • Soft backing material for clothing leather and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0035] Example one:

[0036] 1. Preparation of waterborne polyurethane resin

[0037] 1) Mix 150kg of polypropylene oxide glycol and 35kg of TDI at 80°C for 1h;

[0038] 2) Adjust the temperature to 80°C, add 3 kg of DMPA, 0.4 kg of bismuth octoate and 5 kg of diluent acetone, and mix and react for 2 hours;

[0039] 3) Adjust the temperature to 20°C, add aminosilane coupling agent KH5501kg, mix and react for 1h;

[0040] 4) Adjust the temperature to 50℃, add 120kg of diluent acetone and mix; adjust the temperature to the required emulsification temperature of 10℃, add 2kg of triethylamine for neutralization, and after neutralization time 2min, add 300kg of emulsified water under high-speed stirring to make After being dispersed into an emulsion state, add 1kg of ethylenediamine to react, and the reaction time is 1h;

[0041] 5) Distill under reduced pressure at 30°C and vacuum -0.07MPa. After stirring for 2 hours, the test result is no acetone and odorless, and the test solid content re...

Example Embodiment

[0048] Embodiment two:

[0049] 1. Preparation of waterborne polyurethane resin

[0050] 1) Mix 170kg of polyisoprene glycol and 30kg of IPDI at 90°C for 1.5h;

[0051] 2) Adjust the temperature to 70°C, add 5 kg of DMPA, 0.1 kg of zinc octoate and 8 kg of diluent acetone, and mix and react for 3 hours;

[0052] 3) Adjust the temperature to 10°C, add 0.5kg of aminosilane coupling agent KH550, and mix and react for 0.5h;

[0053] 4) Adjust the temperature to 55°C, add 140kg of acetone as the diluent and mix; adjust the temperature to the required emulsification temperature of 15°C, add 4kg of triethylamine for neutralization, and after neutralization time 1min, add 400kg of emulsified water under high-speed stirring to make After dispersing into an emulsion state, add 4kg of hexamethylene diamine to react, and the reaction time is 0.6h;

[0054] 5) Distill under reduced pressure at 50°C and vacuum -0.08MPa. After stirring for 3 hours, the test result is no acetone and odorless, and the t...

Example Embodiment

[0061] Example three

[0062] 1. Preparation of waterborne polyurethane resin

[0063] 1) Mix 190kg of polytetrahydrofuran ether and 40kg of NDI at 100°C for 2h;

[0064] 2) Adjust the temperature to 90°C, add 4 kg of DMPA, 0.3 kg of bismuth octoate and 10 kg of diluent methyl ethyl ketone, and mix and react for 1 hour;

[0065] 3) Adjust the temperature to 50°C, add 23kg of aminosilane coupling agent Si-60, and mix and react for 2h;

[0066] 4) Adjust the temperature to 60°C, add 150kg of diluent methyl ethyl ketone and mix; adjust the temperature to the required emulsification temperature of 25°C, add 5kg of triethylamine for neutralization, add 500kg of emulsified water under high-speed stirring after the neutralization time is 5min, After dispersing into an emulsion state, add 5kg of o-xylylenediamine to react, and the reaction time is 0.2h;

[0067] 5) Perform vacuum distillation at 60°C and vacuum -0.09MPa. After stirring for 4 hours, the test result is no butanone taste and no od...

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PUM

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Abstract

The invention provides a soft backing material for clothing leather and a preparation method and application thereof. The soft backing material for clothing leather is prepared from 80-120 parts of waterborne polyurethane resin, 0.1-0.4 part of defoaming agent, 0.3-0.6 part of wetting agent and 0.5-3 parts of thickening agent. By adopting the home-made special waterborne polyurethane resin as the main raw material of the soft backing material for clothing leather, on one hand, the softness of obtained clothing leather can be improved, making the clothing leather have a good handfeel; on the other hand, the waterborne polyurethane resin is environmentally friendly and nontoxic and can meet the environmental requirements.

Description

technical field [0001] The invention relates to the field of garment leather, in particular to a soft base material for garment leather and a preparation method thereof. Background technique [0002] Apparel leather needs to feel comfortable, soft, and washable, especially alkaline water. In addition to the base fabric and fabric layer used in garment leather meeting the requirements, the bottom material must also meet the above requirements. If the bottom material is too hard, the garment leather will feel poor and stiff. As an adhesive, on the one hand, it needs to have high curing bonding strength, and the peeling strength needs to meet the requirements, so as to prevent the delamination of the garment leather during use. On the other hand, it is required that its modulus is low or its molecular polarity is small, so that it can meet the requirement of softness. However, low molecular polarity and high peel strength are contradictory. How to solve this problem so that ...

Claims

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Application Information

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IPC IPC(8): C08G18/10C08G18/32C08G18/36C08G18/48C08G18/65C08G18/66C08G18/69C08G18/75C08G18/76C08L75/08C08L75/04C08L83/04C08L33/02C08L71/02C08K5/09C08K5/521
CPCC08G18/10C08G18/3234C08G18/36C08G18/4825C08G18/4854C08G18/6529C08G18/6685C08G18/69C08G18/755C08G18/7614C08L75/04C08L75/08C08L2205/02C08L2205/025C08L2205/03C08L2205/035C08G18/3228C08G18/324C08L83/04C08L33/02C08K5/09C08L71/02C08K5/521
Inventor 郑广鹏汪飞李维虎赵春娥戴家兵
Owner HEFEI KETIAN WATERBORNE TECH CO LTD
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