Preparation method of nano self-cleaning leather or product

Abstract

A preparation process of nano self-clearing leather or product comprises firstly mixing organic fluoro-resin, nano solid particles, silane coupling agent, triethanolamine and propylene glycol with water to obtain organic fluorine finishing agent, then conducting spray coating, brush painting or roller painting to leather or products with organic fluorine finishing agent under the constant temperature, preliminarily drying for 5-30 min under 30-50 DEG C, and finally completely drying leather and products under 50-95 DEG C. The process endows high roughness factors to leather and products through the compounding of organic fluorine finishing agent and nano solid particles which are used in the traditional leather production, thereby further increasing hydrophobic and oleophobic properties, and making leather have self-clearing function since leather is water free and oil free. Leather and products which are treated are led to have the super hydrophobic and oleophobic properties, and be water free and oil free, thereby realizing the purpose of self-clearing, not only increasing service life, but also having significant benefits in environmental-friendly and energy-saving aspects.

Description

Technical field [0001] The invention belongs to the field of leather processing, and particularly relates to a preparation method of nanometer self-cleaning leather or products. Background technique [0002] Natural leather is favored by consumers due to its superior moisture absorption, vapor permeability, heat dissipation, and warmth retention characteristics. In daily consumer goods, leather shoes, leather clothing, leather bags and other products, in order to maintain the natural characteristics of leather, the coating amount of high-end leather is generally low or uncoated. The leather has good hydrophilicity and poor water and oil resistance. Even after heavy coating, the oil resistance of leather is generally poor. If leather products are stained with water, they may become hard and deformed if not handled properly. Leather products, such as leather coats and bags, are stained with oil, and consumers mainly send them to leather cleaning shops for cleaning. [0003] With th...

AI Technical Summary

Problems solved by technology

In daily consumer goods such as leather shoes, leather clothes, leather bags and other products, in order to maintain the natural characteristics of leather, the coating amount of high-grade leather is generally low or not coated, the hydrophilicity of leather is better, and the waterproof and oil-proof performance is poor

Even heavily finished leathers are generally less oil-resistant