Scratch resistant processing method of non-figured island ultrafine fiber napped leather

Abstract

The invention relates to a scratch resistant processing method of non-figured island ultrafine fiber napped leather, which comprises the following steps: taking PA6 as an island; taking PE with low density as the sea; adding a small amount of ionic polymer; and spinning an ultrafine fiber by a single-screw blending method. The ultrafine fiber is needled into non-woven fabrics, impregnated with PUresin, reduces toluene contents, and is expanded for drying, sliced, ground, and the like to manufacture ultrafine fiber napped leather. The islands of the ultrafine fiber are partially crosslinked due to the function of ionic compound in a production flow so as to prevent the fiber in the napped leather from falling when the napped leather is used as a material to be made into products of gloves, shoes, clothing, bags, suitcases, and the like, thereby greatly improving the scratch resistance of the napped leather.

Description

technical field

[0001] The invention relates to an indeterminate island superfine fiber suede, in particular to a scratch-resistant treatment method for the indefinite island superfine fiber suede. Background technique

[0002] The scratch resistance of suede leather is an important indicator in the use of superfine fiber synthetic leather. Now the fibers of domestic suede leather are spun by the single-screw extruder method of indeterminate island (see: Zhang Daxing, Wang Rui. Chao Fine fiber production technology and application). This product has a big limitation: the axial discontinuity and unevenness of the inner island of fibers, the fibers are easy to fall off in the subsequent finished products, and the writing property is poor. Contents of the invention

[0003] The technical problem to be solved by the present invention is to provide a scratch-resistant treatment method for indeterminate island superfine fiber suede leather, aiming to solve the above-mentioned p...