Preparation method for ultrafine fiber clothing leather

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...

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.

[0003] Microfiber synthetic leather is a high-grade artificial leather compound made of ultrafine fiber and polyurethane. Due to the large specific surface area of ​​bundled ultrafine fiber, the molecular structure of the fiber and polyurethane has a water absorption similar to that of collagen fibers in the dermis. Therefore, microfiber synthetic leather resembles real leather in structure, appearance and performance. It is superior to real leather in terms of its performance, and is widely used in downstream industries such as high-end shoemaking, bags, furniture, automotive interiors, ball games, and clothing. At present, the research on microfiber clothing leather is still blank in China. Although the processing is difficult, it is relatively Genuine leather and knitted fabric artificial leather, with irreplaceable advantages

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