Preparation method of moisture-absorbing, breathable and antibacterial spunlace non-woven fabric for polyurethane synthetic leather

Abstract

The preparation method of the moisture-absorbing, breathable and antibacterial spunlace non-woven fabric for the polyurethane synthetic leather comprises the following steps: dipping 44.7 g of pure cotton spunlace non-woven fabric into 70 g of formic acid aqueous solution for 30-90 min, taking out cotton textile fibers, putting the cotton textile fibers into 60 g of acetic acid aqueous solution with the mass concentration of 15%, taking out after 30-150 min, washing with 100 ml of mixed solution of ethanol and water in a volume ratio of 70:30 for 3-5 times, and drying; dispersing 0.8 g of sodium alginate, 0.7 g of chitosan and 0.6 g of an emulsifier into 160 g of distilled water, mixing and stirring at 60 DEG C for 50 minutes, adding 1.6 g of modified cotton textile fibers and an antibacterial agent, dipping for 30-90 minutes, taking out, reacting for 0.5-3.5 hours in the aqueous solution of 7 g of dipping crosslinking agent and 80 g of trifluoroacetic anhydride, drying at 100 DEG C for 15-40 minutes, washing with water for 3-5 times, and drying; and uniformly spreading 15 g of obtained modified coco coir product, 0.05 g of carboxylated graphene sheet, 11.6 g of polyurethane adhesive and 2.1 g of substance A on the surface of the moisture-absorbing and breathable spunlace weaving material obtained in the step (3), folding and flattening the moisture-absorbing and breathable spunlace weaving material, and putting the folded and flattened spunlace weaving material into a drying oven at 50 DEG C for carrying out a heat preservation reaction for 2-4h to obtain the moisture-absorbing, breathable and antibacterial spunlace non-woven fabric for the polyurethane synthetic leather.

Description

[0001] This application is a divisional application of 2018108507506. technical field [0002] The invention relates to a preparation method of a spunlace weaving material, especially a preparation method of a hygroscopic, breathable and antibacterial polyurethane synthetic leather spunlace non-woven fabric. Background technique [0003] Non-woven fabrics have no warp and weft threads, are very convenient for cutting and sewing, and are light in weight and easy to shape, so they are deeply loved by handicraft lovers. Because it is a fabric that does not need spinning and weaving, it is just oriented or random arrangement of short textile fibers or filaments to form a web structure, and then reinforced by mechanical, thermal bonding or chemical methods. [0004] It is not interwoven and braided by one yarn, but the fibers are directly bonded together through physical methods, so when you get the sticky scale in your clothes, you will find that, It is impossible to pull out a...

AI Technical Summary

Problems solved by technology

[0007] Its disadvantages are 1) poorer strength and durability compared to woven fabrics; 2) it cannot be washed like other fabrics; 3) the fibers are arranged in a certain direction, so it is easy to split from right angles, etc.

(4) Poor water absorption; non-woven products are rich in color, bright and bright, fashionable and environmentally friendly, widely used, beautiful and generous, with various patterns and styles, and are light in weight, environmentally friendly and recyclable. They are internationally recognized as the best way to protect the earth's ecology Environmentally friendly products

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