A kind of leather and preparation method thereof

Abstract

The invention discloses a kind of leather and a preparation method thereof, at least comprising the following steps: providing a rewetted crust leather, squeezing and stretching the crust leather, stretching and drying, and brushing cracked surface paste, the cracked surface The slurry preparation method is as follows: uniformly mix 100-300 parts of anionic polyacrylic resin polymer, 10-50 parts of penetrant, and 50-250 parts of water, dry in an oven, shake and soften, and obtain a uniform and natural crack effect; In this application, anionic polyacrylic resin is used as the main material, and at the same time it is mixed with water and a small amount of penetrant to make a slurry, which is brushed on the grain surface of the crust leather, and then dried quickly in an oven. Under the action of the penetrant, the anionic Polyacrylic resin can penetrate into the grain layer, fill the grain layer, make the grain layer hard and brittle after rapid drying, and form a stiff dry film on the grain surface, then vibrate and soften, mechanical action will The stiff dry film and grain layer are broken, so that the crust leather gets natural and uniform cracks.

Description

technical field [0001] The invention relates to the technical fields of tanning chemistry and tanning engineering, in particular to a leather crack treatment method, leather including the crack treatment method and a preparation method thereof. Background technique [0002] With the improvement of people's living standards, people are now paying more and more attention to the beauty of leather, and leather is derived from animal fur such as cattle and sheep, which will inevitably have defects such as brand marks, scratches, and punctures. Or to eliminate these defects, either apply a thicker coating on the grain surface, or grind the grain surface to make a repaired leather, both of which will lose the natural lines and traces of the leather itself, and lose leather as a natural material The unique characteristics of natural leather, and the current sluggish natural leather market at home and abroad, the development of the industry has encountered bottlenecks, natural leathe...

AI Technical Summary

Problems solved by technology

[0002] With the improvement of people's living standards, people are now paying more and more attention to the beauty of leather, and leather is derived from animal fur such as cattle and sheep, which will inevitably have defects such as brand marks, scratches, and punctures. Or to eliminate these defects, either apply a thicker coating on the grain surface, or grind the grain surface to make a repaired leather, both of which will lose the natural lines and traces of the leather itself, and lose leather as a natural material The unique characteristics of natural leather, and the current sluggish natural leather market at home and abroad, the development of the industry has encountered bottlenecks, the natural leather products are single, and the phenomenon of homogeneity is becoming more and more serious, which can no longer meet people's growing demand for individualization and fashion.