Preparation method of nano self-cleaning leather or product

A nanometer self-cleaning, leather technology, applied in leather surface treatment, small raw hide/large raw hide/leather/fur treatment, small raw hide/large raw hide/leather hide/fur chemical treatment, etc. Low or no coating, poor water and oil resistance, etc., to achieve the effect of increasing service life and significant benefits

Inactive Publication Date: 2008-08-27
SHAANXI UNIV OF SCI & TECH
View PDF7 Cites 27 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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 le

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0010] Example 1: Firstly, 8% of 3M Scotchgard PM-4701 organic fluorine resin, 0.5% of silicon oxide with a particle size of 10-100nm, 1.2% of triethanolamine and 2.5% of propylene glycol were mixed with water according to mass percentage The organic fluorine coating agent is obtained; then, the cowhide shoe upper leather blank after dyeing, oiling, drying and finishing is brushed with the organic fluorine coating agent at room temperature, pre-baked at 50°C for 5 minutes, and finally dried at 50°C to obtain Nano self-cleaning cowhide upper leather.

Embodiment 2

[0011] Example 2: First, 2% of 3M Scotchgard PM-4701 organic fluorine resin, 1.3% of zinc oxide with a particle size of 10-100 nm, 2% of vinyl triethoxy silane and 0.8% of The triethanolamine and water are mixed to obtain an organic fluorine finishing agent; then, at room temperature, the organic fluorine finishing agent is used to spray the sheepskin garment leather blank after dyeing, oiling, drying and finishing. The dosage is 10-12g / ft. 2 , Pre-baked at 40℃ for 15min, and finally dried at 80℃ to obtain nano self-cleaning sheepskin garment leather.

Embodiment 3

[0012] Example 3: First, 10% of 3M’s Scotchgard PM-4701 organic fluorine resin, 2.6% of titanium oxide with a particle size of 10-100nm, 4% of vinyl trimethoxysilane and 3% of Propylene glycol and water are mixed to obtain an organic fluorine coating agent; then, the cowhide white shoe upper leather blank is sprayed with the organic fluorine coating agent at room temperature, pre-baked at 30°C for 30 minutes, and finally dried at 70°C to obtain nano self-cleaning cowhide white Shoe upper leather.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
Particle sizeaaaaaaaaaa
Login to view more

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...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): C14C11/00C09D127/12C09D7/12B05D7/12
Inventor 薛朝华贾顺田
Owner SHAANXI UNIV OF SCI & TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap