Process for making high simulation ultra-fine fabric leather based cloth

Abstract

One high simulation superfine fiber leather base cloth production method, uses the double component altogether to mix spinning production law produce island superfine fiber, then makes the adhesive-bonded base cloth material, first contains soaks half polyether polyurethane resin or the polyester polyurethane resin, then blows in base cloth the surface spreads gathers the carbonic ether polyurethane resin or the entire polyether polyurethane resin, then carries on coagulation processing using the DMF solution after the polyurethane resin, then uses the lukewarm water completely to wash DMF, use toluene solution island superfine fiber's in 'sea' ingredient extract comes out, then carries on alkali decrement processing. This invention produce base cloth which has thickness direction from trapezoidal density distribution structure, the dermis feeling is strong, may further enhance the artificial leather product the scale.

Description

Technical field [0001] The invention relates to the technical field of artificial leather production, and more specifically relates to a production method of superfine fiber leather base cloth. Background technique [0002] With the continuous development of composite fiber manufacturing technology, artificial leather has also entered the simulation stage, especially the ultra-fine fiber polyurethane artificial leather, because it is based on a three-dimensional network structure of non-woven fabric, using polyurethane resin impregnated with an open pore structure. , and adopt the composite surface layer processing technology to play the role of the huge surface area of ​​the superfine fiber. The performance of variable and other aspects has surpassed that of natural leather, so it has been more and more widely used. However, the deficiency of the above-mentioned artificial leather is that it lacks the trapezoidal density distribution structure of natural leather in the thi...

AI Technical Summary

Problems solved by technology

However, the deficiency of the above-mentioned artificial leather is that it lacks the trapezoidal density distribution structure of natural leather in the thickness direction, that is, its cross-sectional density distribution is uniform, so the elasticity is poor, and the imitation leather feeling is not enough, so it can only be used in shoemaking, clothing and other industries. The production of low-end products limits the further improvement of product grades