Preparation method for ultrafine fiber clothing leather

A technology for superfine fiber and garment leather, applied in the field of preparation of superfine fiber garment leather, can solve the problems of serious pollution of leather tanning technology, limited development of leather, high price of leather, etc., and achieves great difficulty in recycling and high temperature ironing resistance. Good perm effect, excellent recovery effect

Inactive Publication Date: 2016-05-11
SHANDONG TONGDA ISLAND NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] For a long time, it has been popular to use real leather and knitted artificial leather to make clothing leather in the market. With the rapid development of my country's economy and the improvement of people's living standards, people's consumption levels are constantly upgrading, and the demand for leather clothing and accessories is also increasing. Clothing The development of fabrics has also become rich and colorful, mainly natural leather (genuine leather) such as cowhide, goatskin, sheepskin, pigskin, artificial leather and synthetic leather. The laws and regulations of protection have strictly restricted the development of leather, and the price of leather is expensive, the source is limited, and it is difficult to meet the requirements of some specific occasions. People began to seek substitutes for leather.
...

Method used

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  • Preparation method for ultrafine fiber clothing leather

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] (1) Production of high-density nonwovens

[0041] Use PET / COPET fixed island and sea-island composite fibers with a length of 51mm, fiber fineness of 6dtex, and a mass fraction of 65 / 35. After opening, carding, laying, pre-punching with a pre-looming machine, and needle-punching with a needle-punching machine, the thickness is made. 3.0mm high-density non-woven fabric; the web width is 1680mm, the number of web layers is 40 layers, the frequency of pre-punching and needle punching is 500 punches / min, and the density of pre-punching and needle punching is 800 thorns / cm 2 , the speed is 3.5m / min, the average weight of the nonwoven fabric is 600g / cm 2 , the apparent density is 0.20g / cm 3 .

[0042] (2) heat setting

[0043] Under the conditions of drying room temperature of 130°C and vehicle speed of 9m / min, the non-woven fabric is rolled and shaped by rollers to make the density reach 0.27g / cm 3 , the thickness is 2.2mm.

[0044] (3) Wet impregnation

[0045] (1) P...

Embodiment 2

[0056] (1) Production of high-density nonwovens

[0057] Select PA6 / LDPE fixed island and sea-island type composite fiber with a length of 51mm, fiber fineness of 7dtex, and mass fraction of 54 / 46. After opening, carding, laying, pre-punching with a pre-punching machine and needle-punching with a needle-punching machine, the thickness is made. It is a high-density nonwoven fabric of 2.6mm; the width of the web is 1680mm, the number of layers of the web is 40 layers, the frequency of pre-punching and needle punching is 800 punches / min, and the density of pre-punching and needle punching is 1200 thorns / cm 2 , the speed is 3.2m / min, the average weight of the nonwoven fabric is 600g / cm 2 , the apparent density is 0.23g / cm 3 .

[0058] (2) heat setting

[0059] Under the conditions of drying room temperature of 130°C and vehicle speed of 9m / min, the non-woven fabric is rolled and shaped by rollers to make the density reach 0.315g / cm 3 , the thickness is 1.9mm.

[0060] (3) We...

Embodiment 3

[0071] (1) Production of high-density nonwovens

[0072] Select PA6 / LDPE indeterminate island-sea-island type composite fiber with a length of 51mm, fiber fineness of 7dtex, and mass fraction of 54 / 46, through opening, carding, web laying, pre-punching with a pre-looming machine, and needle-punching with a needle-punching machine to make a thickness It is a high-density nonwoven fabric of 2.4mm; the width of the web is 1680mm, the number of layers of the web is 40 layers, the frequency of pre-punching and needle punching is 1000 punches / min, and the density of pre-punching and needle punching is 1500 thorns / cm 2 , the speed is 3.2m / min, the average weight of the nonwoven fabric is 600g / cm 2 , the apparent density is 0.25g / cm 3 .

[0073] (2) heat setting

[0074] Under the conditions of drying room temperature of 140°C and vehicle speed of 9m / min, the non-woven fabric is rolled and shaped by rollers to make the density reach 0.33g / cm 3 , thickness 1.8mm.

[0075] (3) Wet...

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Abstract

The invention discloses a preparation method for ultrafine fiber clothing leather. The preparation method comprises the following steps that a figured or unfigured sea-island fiber is selected to be prepared into a high-density non-woven cloth, and heat setting is performed; the non-woven cloth is impregnated with polyurethane sizing and then cured to be prepared into semi-finished synthetic leather; quantity reduction treatment is performed on the semi-finished synthetic leather to strip out sea ingredients in the sea-island fiber, and then semi-finished ultrafine fiber clothing leather is prepared; the semi-finished ultrafine fiber clothing leather is treated through splitting, sanding and softening, and then the ultrafine fiber clothing leather is prepared. The ultrafine fiber clothing leather obtained through the method has the advantages that the handfeel is soft, the drape performance is good, the hot iron resisting effect is good, the effect of consistent folding grains in the warp direction and weft drection is achieved, the zigzagged folding grain or thick wrinkle phenomenon cannot occur when the leather is folded in half, the recovery effect is extremely good after the leather is folded in half, and the surface has no fold residue.

Description

technical field [0001] The invention relates to a preparation method of superfine fiber garment leather. Background technique [0002] For a long time, it has been popular to use real leather and knitted artificial leather to make clothing leather in the market. With the rapid development of my country's economy and the improvement of people's living standards, people's consumption levels are constantly upgrading, and the demand for leather clothing and accessories is also increasing. Clothing The development of fabrics has also become rich and colorful, mainly natural leather (genuine leather) such as cowhide, goatskin, sheepskin, pigskin, artificial leather and synthetic leather. The laws and regulations of protection strictly restrict the development of genuine leather, and the price of genuine leather is expensive, the source is limited, and it is difficult to meet the requirements of some specific occasions, so people begin to seek substitutes for genuine leather. [000...

Claims

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Application Information

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IPC IPC(8): D06N3/14D04H1/48D06B3/10D06B23/20D06C7/02D06C11/00
CPCD06N3/14D04H1/48D06B3/10D06B23/20D06C7/02D06C11/00D06N2201/02D06N2201/0254D06N2201/0263D06N2203/068D06N2205/023D06N2209/06D06N2211/10D06N2211/28
Inventor 王乐智郑永贵张丰杰王吉杰朱晓丽董瑞华付倩倩马丽豪
Owner SHANDONG TONGDA ISLAND NEW MATERIALS
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