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Environment-friendly anti-siphon finishing method for suede microfiber synthetic leather

A technology of microfiber and synthetic leather, applied in fiber processing, textiles and papermaking, etc., can solve the problems of increased surface tension of microfiber leather, decreased anti-siphon effect, and worsened suede creases, etc., and achieves increased softness. Degree, improve the grade, good crease and velvet effect

Active Publication Date: 2018-01-19
HUAFON MICROFIBER SHANGHAI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if a penetrating agent is added, although the penetration ability of the waterproof finishing agent is enhanced, the surface tension of the microfiber leather increases, which leads to a decrease in the anti-siphon effect; if a crosslinking agent is added, although more waterproof finishing agents can be crosslinked to On microfiber leather, the anti-siphon effect is increased, but the crease of suede leather becomes worse, and the hand feeling decreases

Method used

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  • Environment-friendly anti-siphon finishing method for suede microfiber synthetic leather
  • Environment-friendly anti-siphon finishing method for suede microfiber synthetic leather

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] (1) In parts by weight, add 5 parts of fluorine-free waterproof finishing agent ECO plus, 5 parts of active polysiloxane NFR-A, 3 parts of water-based crosslinking agent FU and 100 parts of deionized water into the mixing tank Stir evenly to obtain a mixed solution A, and then adjust the pH of the mixed solution A to 5 with acetic acid to obtain an anti-siphon treatment solution B;

[0023] (2) Using ultrasonic technology, immerse the superfine fiber synthetic leather in the anti-siphon treatment solution B, at 100kHz, control the vehicle speed to 8m / min. After 1 dipping and 1 rolling treatment, the liquid carrying rate of microfiber leather is controlled to 65%;

[0024] (3) High-temperature cross-linking treatment, drying at 130°C for 10 minutes, and anti-siphon treatment after cooling, winding, kneading and other processes.

Embodiment 2

[0026] (1) In parts by weight, add 10 parts of fluorine-free waterproof finishing agent LZ-XR88, 2 parts of active polysiloxane NFR-A, 1 part of water-based crosslinking agent FU and 100 parts of deionized water into the mixing tank Stir evenly in the middle to obtain the mixed solution A, then use acetic acid to adjust the pH of the mixed solution A to be 4, and obtain the anti-siphon treatment solution B;

[0027] (2) Using ultrasonic technology, immerse the superfine fiber synthetic leather in the anti-siphon treatment solution B, at 50kHz, control the vehicle speed to 2m / min. After 1 dipping and 1 rolling treatment, the liquid-carrying rate of microfiber leather is controlled to 70%;

[0028] (3) High-temperature cross-linking treatment, drying treatment at 160°C for 5 minutes, and anti-siphon treatment after cooling, winding, kneading and other processes.

Embodiment 3

[0030] (1) In parts by weight, add 6 parts of fluorine-free waterproof finishing agent LZ-XR88, 3 parts of active polysiloxane NFR-A, 3 parts of water-based crosslinking agent 628 and 100 parts of deionized water into the mixing tank Stir evenly to obtain mixed solution A, then use acetic acid to adjust the pH of mixed solution A to 5.5 to obtain anti-siphon treatment solution B;

[0031] (2) Using ultrasonic technology, immerse the superfine fiber synthetic leather in the anti-siphon treatment solution B, at 80kHz, control the vehicle speed to 5m / min. After 1 dipping and 1 rolling treatment, the liquid carrying rate of microfiber leather is controlled to 55%;

[0032] (3) High-temperature cross-linking treatment, drying treatment at 140°C for 7 minutes, and anti-siphon treatment after cooling, winding, kneading and other processes.

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Abstract

The present invention discloses an environmentally friendly anti-siphon afterfinishing method for a suede microfiber synthetic leather. The method is as below: (1) immersing the dyed microfiber synthetic leather into an anti-siphon treatment solution, and padding; (2) then drying the product obtained in the step (1), cooling, rolling and crumpling to obtain the anti-siphon suede microfiber synthetic leather. The anti-siphon treatment solution for suede microfiber synthetic leather has a pH value of 4-6, and comprises the following components by weight: 5-10 parts of a fluorine-free waterproof finishing agent, 2-5 parts of reactive polysiloxane, 1-3 parts of an aqueous crosslinking agent and 100 parts of water. The agent of the invention uses the fluorine-free environment-friendly waterproof finishing agent without APEO, PFOA or PFOS, and the ultrasonic technology; and the obtained microfiber synthetic leather achieves anti-siphon effect of rise of impregnating solution of less than 1cm after 2h immersion, and has good creases and velvety sense, so as to improve the grade of the suede microfiber synthetic leather.

Description

technical field [0001] The invention relates to a finishing method for suede superfine fiber synthetic leather. Background technique [0002] In recent years, suede microfiber synthetic leather has become more and more popular among consumers and has become the mainstream product of microfiber synthetic leather. However, with the progress of society, people have stricter requirements on the performance and environmental performance of suede microfiber synthetic leather. Although the traditional C6 and C8 series waterproofing agents can give microfiber leather good anti-siphon performance, the PFOA contained in them , PFOS and other substances not only damage people's health, but also are not easy to decompose; therefore, it is extremely urgent to develop environmentally friendly fluorine-free anti-siphon microfiber synthetic leather. [0003] The fluorine-free waterproof finishing agent is generally a macromolecule of a polymer. When dealing with microfiber leather or high-...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06M15/643D06M15/564D06M15/00
CPCD06M15/00D06M15/564D06M15/643
Inventor 胡雪丽胡忠杰孙向浩张其斌杜明兵诸葛磊吴勇韩芹马玲玲蔡肖燕
Owner HUAFON MICROFIBER SHANGHAI
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