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Method for preparing ultra-soft high-elastic polyurethane leather

A synthetic leather and polyurethane technology, applied in polyurea/polyurethane coatings, chemical instruments and methods, synthetic resin layered products, etc., can solve the problems of hard hand feeling, poor durability, and poor fullness, and achieve good softness and durability Excellent performance, natural pattern effect

Active Publication Date: 2013-03-20
ANHUI ANLI MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional PU synthetic leather feels hard and has poor plumpness, while soft has poor durability. The shape of the pattern is provided by the release paper, which is highly imitable

Method used

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  • Method for preparing ultra-soft high-elastic polyurethane leather
  • Method for preparing ultra-soft high-elastic polyurethane leather
  • Method for preparing ultra-soft high-elastic polyurethane leather

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Embodiment Construction

[0019] Manufacturers and trade marks of raw materials used in the embodiments of the present invention are as follows:

[0020] Solvent-based colorant: Zhejiang Deep Blue Textile Technology Co., Ltd., BLPN560

[0021] Anionic surfactant: Jiande Shunfa Chemical Co., Ltd., SF-7

[0022] Nonionic surfactant: Shanghai Rishen Chemical Co., Ltd., S-11

[0023] Stripping aid: BYK, BYK-9565

[0024] Water-based softener: Hefei Lankai Chemical Co., Ltd., LK-136

[0025] Slip agent: Jinling Auxiliary Factory, Jinhu County, HY-905

[0026] Polyether polyurethane: Hefei Amway Polyurethane New Material Co., Ltd., SW-5015RH

[0027] Polyether polyurethane: Hefei Amway Polyurethane New Material Co., Ltd., SW-4015

[0028] Polyurethane resin: Hefei Amway Polyurethane New Material Co., Ltd., LT-80.

[0029] The preparation method of supersoft high elastic polyurethane synthetic leather of the present invention operates as follows:

[0030] a. Choose 180g / m 2 Double-sided knitted fleece...

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Abstract

The invention discloses a method for preparing ultra-soft high-elastic polyurethane leather, which comprises the following steps: preparing a knitted fleeced base fabric, coating polyether urethane sizing on the base fabric, and manufacturing the base fabric into a semi-finished leather product through wet condensation; carrying out release paper type pattern transfer on the manufactured semi-finished leather product, and forming a pattern with an irregular effect through high-temperature thermal contraction; and finally, improving the handfeel and pattern plumpness of the leather through kneading, thus obtaining ultra-soft high-elastic polyurethane high-physical-property furniture leather. A leather product prepared by using the method disclosed by the invention can satisfy the requirements of sofa leather on physical properties such as wear resistance (H-18*500g*1000 revolutions), hydrolysis resistance (passing ASTM D3690 standards) and softness; meanwhile, a pattern effect which is different from an effect produced by using a release paper type pattern transfer method is obtained, and the pattern effect has inimitability.

Description

1. Technical field [0001] The invention relates to a production method of functional polyurethane synthetic leather, more specifically a preparation method of supersoft high-elastic polyurethane synthetic leather. 2. Background technology [0002] Polyurethane synthetic leather, referred to as PU synthetic leather, is a kind of imitation leather synthetic leather that uses various cloth bases as substrates, and coats polyurethane resin on the substrates to endow them with various patterns, patterns, functions and handles. Traditional PU synthetic leather feels hard and has poor plumpness, while soft has poor durability. The shape of the pattern is provided by the release paper, which is highly imitable. 3. Contents of the invention [0003] The invention aims to provide a preparation method of ultra-soft and high-elastic polyurethane synthetic leather, which is mainly used as home leather, so that it can meet the requirements of soft and full-feeling furniture leather, and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06N3/12B32B27/06B32B33/00B32B37/02B32B37/26B32B38/16C09D175/08
Inventor 王燕武黄万里程艳西赵娜娜刘兵张海峰吴建民戴俊
Owner ANHUI ANLI MATERIAL TECH
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