Manufacturing method of sulfinyl-based solvent type polyurethane resin artificial leather

Abstract

The invention relates to a manufacturing method of sulfinyl-based solvent type polyurethane resin artificial leather. Coating slurry is prepared from sulfinyl-based solvent type polyurethane resin, then coats the surface of artificial leather base cloth and is dyed to obtain dyed polyurethane artificial leather. The coating slurry comprises the following components in parts by mass: 100 parts of sulfinyl-based solvent type polyurethane resin, 20 to 120 parts of dimethylformamide, and 20 to 120 parts of acetone. The sulfinyl-based solvent type polyurethane resin is used as an artificial leather surface coating material, and can be dyed with dye, and the color effect of dye coloring can be obtained after dyeing, so that the product has the characteristics of bright color, high coating permeability, high surface color fastness and low color transfer performance.

Description

technical field [0001] The invention belongs to the technical field of polyurethane resin artificial leather preparation methods, and in particular relates to a method for manufacturing a thionyl-based solvent-based polyurethane resin artificial leather that is easy to dye. Background technique [0002] The artificial leather with dye coloring effect on the surface is bright in color and high in transparency. It is popular in fashion products such as bags and women’s shoes. However, traditional synthetic leather is usually colored by pigment, which cannot achieve the effect of dye coloring. Although it can The manufacturing method of adding dye water coloring agent to the coating material is used to obtain the dye coloring effect, but this manufacturing method will bring serious color migration, poor color fastness, high cost and other problems, which restrict the use of the product. [0003] In the traditional synthetic leather manufacturing process, it is necessary to add ...

AI Technical Summary

Problems solved by technology

[0004] Coloring substances such as dyes are combined to give different colors to the finished leather, but the coloring of the coating feels hard, and once the coloring formula is determined, the coating presents a single color, the gloss and color are monotonous, and there is no layering such as depth, light and shade, new and old.