Thin type micro villus polyurethane certificate leather and preparation method thereof

Abstract

The invention discloses thin type micro villus polyurethane certificate leather and a preparation method of the thin type micro villus polyurethane certificate leather. The preparation method of the thin type micro villus polyurethane certificate leather takes a 0.45 imitated micro fiber fabric base raising on a single face as a carrier and comprises the following steps: directly coating a polyurethane resin layer with a certain viscosity on the raised surface of the 0.45 imitated micro fiber fabric base, after coagulation, forming a polyurethane epithelium on the surface of the fabric base after cohesion, and during the film formation process, sequentially carrying out washing for displacing a DMF (dimethyl formamide) solvent, drying and shaping the polyurethane epithelium, so as to obtain a semi-finished product; carrying out oriented buffing and tentering on the surface layer of the semi-finished product, then carrying out aftertreatment and colour alternation, so that the thin type micro villus polyurethane certificate leather finished product is obtained. The thin type micro villus polyurethane certificate leather obtained by adopting the preparation method has the advantages of fine villus, soft handfeel, light weight, superior air permeability and downy feeling like micro fiber, a certificate leather lining made adopting the thin type micro villus polyurethane certificate leather shines with dazzling brilliance, is decent and has excellent protective properties, such as shakeproof, breakageproof and scratchproof properties, on a delicate article, and the thin type micro villus polyurethane certificate leather is especially applicable to linings of shells of a mobile phone, a computer and the like.

Description

technical field [0001] The invention relates to a polyurethane slurry and a micro-velvet thin polyurethane synthetic leather containing the polyurethane slurry and a preparation method thereof, in particular to a polyurethane synthetic leather with suede effect and a preparation method thereof. Background technique [0002] Polyurethane synthetic leather, referred to as PU synthetic leather, is a kind of imitation leather synthetic leather that uses various base fabrics as base materials and coats polyurethane resin on the base materials to make it have various patterns, patterns, functions and handles. With the development of social economy, more and more consumers advocate fashion, pursue trends, and pay attention to taste. There are all kinds of exquisite and precious accessories, which can be seen everywhere, such as IPAD, IPHONE, computer, etc. With more and more With the emergence of more and more high-end products, the protective requirements for high-end products suc...

AI Technical Summary

Problems solved by technology

With the development of social economy, more and more consumers advocate fashion, pursue trends, and pay attention to taste. There are all kinds of exquisite and precious accessories, which can be seen everywhere, such as IPAD, IPHONE, computer, etc. With more and more With the emergence of more and more high-end products, the protective requirements for high-end products such as shockproof, shatterproof, scratch-proof, and pollution-proof have increased, while the packaging lining made of ordinary PU has a velvet effect, fine touch, breathability, and moisture permeability. Poor and easy to fade