Preparation method of nano self-cleaning leather or product
A nano self-cleaning and leather technology, which is applied in leather surface treatment, small raw hide/big raw hide/leather/fur treatment, small raw hide/large raw hide/leather skin/fur chemical treatment, etc. It can solve poor oil resistance and coating quantity Low or no coating, poor water and oil repellency, etc., to achieve the effect of increasing service life and significant benefits
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Embodiment 1
[0010] Embodiment 1: First, the Scotchgard PM-4701 organic fluorine resin of 8% 3M company, the particle diameter of 0.5% are 10~100nm silicon oxide, 1.2% triethanolamine and 2.5% propylene glycol mixed with water by mass percentage Obtain the organic fluorine coating agent; then, at room temperature, use the organic fluorine coating agent to brush the cowhide shoe upper leather base after dyeing, oiling, and drying, pre-baking at 50 ° C for 5 minutes, and finally drying at 50 ° C to obtain Nano self-cleaning cowhide upper leather.
Embodiment 2
[0011] Embodiment 2: at first, the Scotchgard PM-4701 organic fluorine resin of 2% 3M company, the particle diameter of 1.3% are the zinc oxide of 10~100nm, the vinyltriethoxysilane of 2% and 0.8% by mass percentage Mix triethanolamine with water to obtain an organic fluorine finishing agent; then, at room temperature, use the organic fluorine finishing agent to spray the sheepskin garment leather base after dyeing, oiling, drying and finishing, and the dosage is 10-12g / foot 2 , pre-dried at 40°C for 15 minutes, and finally dried at 80°C to obtain nano self-cleaning sheepskin garment leather.
Embodiment 3
[0012] Embodiment 3: at first, the Scotchgard PM-4701 organic fluorine resin of 10% 3M company, the particle diameter of 2.6% are the titanium oxide of 10~100nm, the vinyltrimethoxysilane of 4% and 3% by mass percent Propylene glycol is mixed with water to obtain an organic fluorine coating agent; then, the cowhide white shoe upper leather blank is sprayed with an organic fluorine coating agent at room temperature, pre-baked at 30°C for 30 minutes, and finally dried at 70°C to obtain a nanometer self-cleaning cowhide white finish. upper leather.
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