A kind of superfine fiber synthetic leather for clothing and its clean production method

A superfine fiber and clean production technology, which is applied in the direction of synthetic resin layered products, clothing, fiber treatment, etc., can solve the problems of poor product surface feel and imitation, insufficient product softness, poor hand feel, etc., to achieve soft and full hand feeling , small change in hardness, soft hand feeling

Active Publication Date: 2018-10-26
JIANGSU KEMEI NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, compared with natural leather for clothing, microfiber synthetic leather products for clothing still have the following deficiencies: (1) The surface making process usually adopts the transfer coating method of solvent-based polyurethane release paper, which will use a large amount of solvent and cause environmental pollution. Pollution; (2) The softness of the product is insufficient, and the fullness of the handle is poor; (3) The water and gas permeability of the product is small, resulting in poor hygienic performance; (4) The feel and simulation of the product surface are poor

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] (1) Base cloth splitting: using a precision splitting machine, the superfine fiber synthetic leather base cloth with a thickness of 1.0mm is split into two layers to obtain a split base cloth with a thickness of 0.5 mm;

[0032] Wherein, the superfine fiber synthetic leather base cloth is island-fixed superfine fiber synthetic leather base cloth.

[0033] (2) Shrinkage of the base fabric: pass one or two split base fabrics through an impregnation tank equipped with a shrinkage liquid at 30°C, and control the impregnation amount of the shrinkage liquid through a roll to 90% of the quality of the superfine fiber synthetic leather base cloth. %, and then enter the continuous kneading machine, under the condition of 75 ℃, make the split base fabric dry thoroughly to obtain the shrink kneaded base fabric;

[0034]Wherein, the shrinkage liquid is prepared by the following method: in parts by mass, 5 parts of bayberry extract, 1 part of rubber extract, 0.3 part of sodium citra...

Embodiment 2

[0038] (1) base cloth splitting: using a precision splitting machine, the superfine fiber synthetic leather base cloth with a thickness of 1.4mm is cut into two layers to obtain a split base cloth with a thickness of 0.7mm;

[0039] Wherein, the ultrafine fiber synthetic leather base cloth is non-fixed island type ultrafine fiber synthetic leather base cloth.

[0040] (2) Shrinkage of the base fabric: pass one or two split base fabrics through an impregnation tank equipped with a shrinkage liquid at 32°C, and control the impregnation amount of the shrinkage liquid through a roller to be 85% of the quality of the superfine fiber synthetic leather base cloth. %, then enter the continuous kneading machine, under the condition of 55 ℃, make the split layer base fabric dry thoroughly, and obtain the shrink kneading base fabric;

[0041] Wherein, the shrinkage liquid is prepared by the following method: in parts by mass, 8 parts of bayberry extract, 1.5 parts of rubber extract, 0.1 ...

Embodiment 3

[0045] (1) Base cloth splitting: using a precision splitting machine, the superfine fiber synthetic leather base cloth with a thickness of 1.2mm is cut into two layers to obtain a split base cloth with a thickness of 0.6 mm;

[0046] Wherein, the superfine fiber synthetic leather base cloth is a pie-shaped superfine fiber synthetic leather base cloth.

[0047] (2) Base fabric shrinkage: pass one or two split base fabrics through the dipping tank equipped with 33°C shrinkage liquid, and control the impregnation amount of the shrinkage liquid through rolls to 80% of the quality of the superfine fiber synthetic leather base cloth. %, and then enter the continuous kneading machine, under the condition of 60 ℃, make the split layer base fabric dry thoroughly to obtain the shrink kneaded base fabric;

[0048] Wherein, the shrinkage liquid is prepared by the following method: in parts by mass, 9 parts of bayberry extract, 2 parts of rubber extract, 0.2 part of sodium citrate, 3 parts...

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Abstract

The invention discloses superfine fiber synthetic leather for clothes and a clean production method for the superfine fiber synthetic leather. The clean production method comprises the following steps: equally splitting superfine fiber synthetic leather base cloth into two layers by adopting a precision splitting machine to obtain splitting layer base cloth; impregnating the splitting layer base cloth by an impregnating tank filled with a shrinking and rubbing solution, and then feeding the splitting layer base cloth to enter a continuous graining machine to obtain shrank and rubbed base cloth; coating PUR on the shrank and rubbed base cloth by adopting synthetic leather dry process production line equipment with PUR dot matrix roller coating equipment; then laminating the shrank and rubbed base cloth and a waterproof moisture permeable polyurethane film to obtain composite basic cloth; attaching the composite base cloth to a microporous ceramic vacuum grain line suction roller for sucking grain lines to obtain the superfine fiber synthetic leather for the clothes. According to the superfine fiber synthetic leather disclosed by the invention, by adopting a shrinking and rubbing technology, softness, air permeability and water-vapor permeability of the superfine fiber synthetic leather are greatly improved; by means of a PUR dot matrix and roller coating composite technology, a waterproof and moisture permeable PUR thin film is compounded on the superfine fiber synthetic leather base cloth; finally, the superfine fiber synthetic leather with soft hand feeling and good sanitary property is obtained by vacuum grain line suction.

Description

technical field [0001] The invention relates to the technical field of superfine fiber synthetic leather, in particular to a superfine fiber synthetic leather for clothing and a clean production method thereof. Background technique [0002] Due to the limited resources of raw leather used to produce natural leather, and the production of natural leather is a process of high energy consumption and high pollution, it will bring a huge pollution load to the environment. In recent years, developed countries such as the European Union have also proposed new standards for the safety of natural leather itself, strictly restricting the presence of toxic chemicals such as Cr(VI), azo dyes, pentachlorophenol (PCP) and free formaldehyde in natural leather. . From the perspective of raw leather resources, environmental protection, product safety and market, the production and use of natural leather are facing great challenges. [0003] For the above reasons, countries all over the wor...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B7/12B32B27/12B32B27/40B32B37/12B32B38/08B32B38/16D06M15/00D06M13/00D06M13/207D06M13/262D06M13/248
CPCB32B5/02B32B7/12B32B27/12B32B27/40B32B37/12B32B38/08B32B38/162B32B2307/724B32B2307/73B32B2437/00D06M13/00D06M13/207D06M13/248D06M13/262D06M15/00D06M2200/50
Inventor 陆毅马兴元严荣华
Owner JIANGSU KEMEI NEW MATERIALS
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