Supersoft leather base cloth fiber and production method thereof

Abstract

The invention relates to the technical field of artificial leather and specifically relates to a supersoft leather base cloth fiber and a production method thereof. The supersoft leather base cloth fiber comprises the components in parts by mass: 50-60 parts of modified polyurethane, 10-15 parts of flexible fiber, 15-20 parts of lignocellulose, 6-8 parts of softening agent, 3-5 parts of lubricant,10-20 parts of filler, 3-5 parts of anti-ageing agent and 1-2 parts of color masterbatches. The supersoft leather base cloth fiber is prepared by using a melting method, the problem of environment pollution caused by preparation realized by using a traditional solvent method is eliminated, and meanwhile, the problem of poisonous and harmful solvent residues in synthetic leather can be solved.

Description

technical field [0001] The invention belongs to the technical field of artificial leather, and in particular relates to a supersoft leather base cloth fiber and a manufacturing method thereof. Background technique [0002] In recent years, raw leather resources of natural leather have become more and more expensive and less and less, which is far from meeting the needs of the market. Therefore, countries all over the world are accelerating the development of new materials to replace natural leather materials. However, most of the development There is also a big gap between the raw material and the input leather. It cannot meet the market demand in terms of mechanical properties, and at the same time it is relatively hard and relatively low in flexibility. [0003] Chinese patent application CN102425068A discloses that the present invention discloses a method for producing ultrafine fiber synthetic leather base cloth by using a water-based polyurethane impregnating composite ...

AI Technical Summary

Problems solved by technology

[0002] In recent years, raw leather resources of natural leather have become more and more expensive and less and less, which is far from meeting the needs of the market. Therefore, countries all over the world are accelerating the development of new materials to replace natural leather materials. However, most of the development There is also a big gap between the material and the input leather, which cannot meet the market demand in terms of mechanical properties, and at the same time it is relatively hard and relatively low in flexibility.

[0003] Chinese patent application CN102425068A discloses that the present invention discloses a method for producing ultrafine fiber synthetic leather base cloth by using a water-based polyurethane impregnating composite method. Impregnation and compounding equipment, first the superfine fiber nonwoven fabric passes through the impregnation tank filled with water-based polyurethane, chemical foaming agent and high-carbon alcohol mixed slurry, so that the mixed slurry completely soaks the superfine fiber nonwoven fabric; then passes through the paddle car, The amount of slurry in the superfine fiber nonwoven is controlled by the gap width between the rollers, the excess slurry is squeezed out, and then dried in an oven, and the drying temperature and time are controlled for chemical foaming, which is filled in the ultrafine The water-based polyurethane between the fibers of the fiber nonwoven fabric forms a porous filler to obtain a superfine fiber synthetic leather base cloth; finally, the superfine fiber synthetic leather base cloth is washed with hot water to form a continuous porous water-based polyurethane filler , to obtain a superfine fiber synthetic leather base cloth with breathable and water vapor permeable properties, but relatively speaking, its mechanical properties are relatively low and its service life is short