Method for preparing PVC leatheroid color film compound embossing plastic leather

Abstract

The invention relates to a method for preparing a PVC leatheroid color film compound embossing plastic leather. The method comprises the following technological steps: preparing a PVC printing film; preparing a plastic leather semi-finished product; printing a nontransparent light white base color ink on the back face of the PVC printing film; carrying out two to six sets of color printing on the front face of the PVC printing film according to the pattern demands; entering the next set of color printing after printing each set of colors and drying the PVC printing film at a temperature of 140 to 160 DEG C; preparing the colorful PVC printing film; and finally coiling the colorful PVC printing film of which the front face and the back face are printed into a large coil. The nontransparent light white base color ink is prepared by adding titanium pigments into a colorless ink or a light color ink, and the weight of the titanium pigments accounts for 30 to 40 percent of the weight of the colorless ink or the light color ink; and the PVC leatheroid color film compound embossing plastic leather is prepared after heating, pressing, jointing, towing and cooling the printed colorful PVC printing film and the plastic leather semi-finished product. The plastic leather finished product prepared by the method has the advantages of no color difference, simple manufacturing working procedure, high product qualification rate, low cost, good quality and good appreciation.

Description

(1) Technical field [0001] The invention relates to an artificial leather color pattern printing and composite embossing process, in particular to a preparation method of PVC artificial leather color film composite embossed plastic surface leather. It belongs to the technical field of artificial leather. (2) Background technology [0002] Before the present invention was made, the color patterns on the surface of the plastic surface leather in the past were made by a transfer printing process, and the defects on the surface of the plastic surface leather were not covered, and it mainly had the following defects: [0003] 1. The color difference of the plastic surface leather is caused by the temperature change of the raw material and the feeding batch. After printing, the finished product still has color difference. [0004] 2. Colored raw materials, especially plastic leather produced from dark-colored recycled materials, must be calendered and pasted with white material f...

AI Technical Summary

Problems solved by technology

[0003] 1. The color difference of the plastic surface leather is caused by the temperature change of the raw material and the feeding batch. After printing, the final finished product still has color difference.

[0004] 2. Colored raw materials, especially plastic leather produced from dark-colored recycled materials, must be calendered and pasted with white material film before printing

[0005] 3. In the traditional transfer printing process, due to the uneven stripping agent on the surface of the carrier, part of the color pattern is peeled off the plastic leather surface with the carrier, resulting in unclear patterns and low authenticity rate

[0006] 4. Increase the cost of transfer carrier

[0007] 5. The effect of printing color patterns on the front of the printing film cannot be controlled artificially, which reduces the quality of color patterns on the surface of plastic leather

[0008] 6. Plastic leather lacks ornamental effect