A kind of preparation method of sea-island type superfine fiber synthetic leather base cloth with high moisture absorption and moisture permeability
A superfine fiber and island-in-the-sea technology, which is applied in fiber processing, fiber type, textiles and papermaking, etc., can solve the problems of poor moisture absorption and moisture permeability of sea-island ultrafine fibers, so as to solve the problem of poor moisture absorption and moisture permeability and improve hygiene. The effect of performance, good economic benefits and social benefits
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Embodiment 1
[0053] Step 1, cut out a 170×130mm ultra-fine fiber sample (about 12g±0.5g), ultrasonically clean it with acetone at room temperature for 30 minutes, take it out and soak it in 10% NaOH solution for 1 hour, take it out and rinse it with plenty of water , placed in a 50°C oven for drying, placed in a mixed solution of 85% phosphoric acid solution and formaldehyde solution with a volume ratio of 1:100, reacted at 60°C for 15 hours, took it out and rinsed it with a large amount of water, and dried at 50°C to obtain Hydroxylated ultrafine fiber (USFSLB-OH), put the hydroxylated ultrafine fiber in a small sample cup of 100mL isopropanol, add 0.7mL MPS, then fill the small sample cup with nitrogen, and place the small sample cup at 70°C After the reaction was completed, it was taken out, thoroughly washed with isopropanol for 3 times, and dried in an oven at 60°C to obtain a mercaptolated island-in-the-sea microfiber synthetic leather base cloth.
[0054] Step 2: Weigh 5.0 g of coll...
Embodiment 2
[0057] Step 1, cut out a 170×130mm ultra-fine fiber sample (about 12g±0.5g), ultrasonically clean it with acetone at room temperature for 30 minutes, take it out and soak it in 10% NaOH solution for 1 hour, take it out and rinse it with plenty of water , placed in a 50°C oven for drying, placed in a mixed solution of 85% phosphoric acid solution and formaldehyde solution with a volume ratio of 2:100, reacted at 60°C for 15 hours, took it out and washed it with a large amount of water, and dried it at 50°C to obtain Hydroxylated ultrafine fiber (USFSLB-OH), put the hydroxylated ultrafine fiber in a small sample cup of 100mL isopropanol, add 0.7mL MPS, then fill the small sample cup with nitrogen, and place the small sample cup at 70°C After the reaction was completed, it was taken out, thoroughly washed with isopropanol for 3 times, and dried in an oven at 60°C to obtain a mercaptolated island-in-the-sea microfiber synthetic leather base cloth.
[0058] Step 2: Weigh 5.0 g of c...
Embodiment 3
[0061] Step 1, cut out a 170×130mm ultra-fine fiber sample (about 12g±0.5g), ultrasonically clean it with acetone at room temperature for 30 minutes, take it out and soak it in 10% NaOH solution for 1 hour, take it out and rinse it with plenty of water , placed in an oven at 50°C for drying, placed in a mixed solution of 85% phosphoric acid solution and formaldehyde solution with a volume ratio of 1.5:100, reacted at 60°C for 15 hours, took it out and rinsed it with a large amount of water, and dried at 50°C to obtain Hydroxylated ultrafine fiber (USFSLB-OH), put the hydroxylated ultrafine fiber in a small sample cup of 100mL isopropanol, add 0.7mL MPS, then fill the small sample cup with nitrogen, and place the small sample cup at 70°C After the reaction was completed, it was taken out, thoroughly washed with isopropanol for 3 times, and dried in an oven at 60°C to obtain a mercaptolated island-in-the-sea microfiber synthetic leather base cloth.
[0062] Step 2: Weigh 5.0 g o...
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