Superfine fiber synthetic leather, preparation method thereof and printing material composition

Abstract

The invention discloses a preparation method for superfine fiber synthetic leather, which comprises the following step of: performing printing treatment, water washing, and dry rubbing on the superfine fiber synthetic leather obtained by cover making of a dry-process overlaying process, wherein a printing material in printing treatment comprises the following components in part by weight: 100 parts of waterborne polyurethane resin, 10 to 50 parts of water, preferably 20 to 40 parts of water, and 5 to 40 parts of water-based ink, preferably 10 to 30 parts of water-based ink; the temperature of water washing is 40 to 90DEG C, preferably 50 to 70DEG C; and the time of water washing is 15 to 50 minutes, preferably 25 to 40 minutes. The invention also discloses the superfine fiber synthetic leather prepared by the method. The superfine fiber synthetic leather is washable superfine fiber synthetic leather, and has excellent comprehensive physical properties, dual-color effect and the handfeel of natural leather. The invention also discloses a printing material composition.

Description

technical field [0001] The invention specifically relates to a superfine fiber synthetic leather, its preparation method and a printing material composition. Background technique [0002] Microfiber synthetic leather is the future development direction of synthetic leather, and has been gradually recognized by the market. Traditional polyurethane synthetic leather is generally made of raised woven or knitted fabrics. Although the appearance and feel are good, it is difficult to meet the requirements of high-end sports and leisure shoes in terms of physical properties. Synthetic leather has poor hand feeling, relatively poor physical properties, and heavy quality, which does not meet the requirements of future consumption. Microfiber synthetic leather is a new generation of artificial leather and synthetic leather products. It uses a three-dimensional network structure of non-woven fabric as the substrate, and has a polyurethane mesh and nylon bundle structure with open pore...

AI Technical Summary

Problems solved by technology

[0003] Washed synthetic leather has appeared in the field of synthetic leather, and its preparation method is generally to print and change the color of the synthetic leather that has been made, so that the synthetic leather can be washed to make the leather have a two-color effect, but so far there has been no water-washed superfine fiber synthetic leather. Because ordinary leather does not have ultra-fine fibers of 0.01 to 0.001 denier like micro-fiber leather and has a structure similar to genuine leather, the shrinkage rate, surface color adsorption and uniformity of the two washed leathers are different, and micro-fiber leather is not easy. Washing, special adjustment of printing materials and washing process is required

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