Temperature change resistant PVC wood grain film printing yellow ink

Abstract

The invention provides a temperature change resistant PVC wood grain film printing yellow ink comprising the raw material formula by the weight percentage: 25-40% of a 30% modified polyurethane-acrylic acid emulsion, 25-40% of a 20% carboxyl modified ternary composite vinisol solution, 10-15% of benzidine yellow, 1-5% of a filling material, 1-6% of a functional resin, 1-3% of polyethylene wax, 1-5% of a dedicated auxiliary agent, 10-15% of ethyl acetate, and 10-15% of butanone. Aiming at the performance characteristic of the temperature change resistant PVC wood grain film printing yellow ink and the process requirement of adhesive-free high-temperature self-bonding compositing, the modified polyurethane-acrylic acid emulsion and the carboxyl modified ternary composite vinisol resin are added in the formula, so that adverse reactions of the yellow ink and an adhesive basal material during adhesive-free self-bonding of a print can be improved and avoided to the largest extent, the problems that the composite product has large color decay when meeting the high temperature and has low bonding fastness are solved, and the quality of the product is ensured.

Description

technical field [0001] The invention relates to a novel decorative material, in particular to a yellow ink for printing on a temperature-resistant PVC wood grain film. Background technique [0002] At present, PVC wood grain film is a new type of decorative material produced by printing yellow ink, wood grain printing, gluing compound, and roller calendering. It can be compounded with wood, plastic board, aluminum board, iron board and other substrates to make multi-purpose PVC decoration. For film decoration materials, the lamination of wood grain film printing enterprises in the domestic market is still mainly dry lamination. However, with the rapid development of new technologies and new products and the gradual maturity of various market conditions, domestic adhesive-free high-temperature (200°C) self-adhesive composite technology is facing unprecedented opportunities for rapid development. [0003] In particular, the new national standard GB28481-2012 released the limi...

AI Technical Summary

Problems solved by technology

[0004] Glue-free self-adhesive lamination is widely used by more wood grain film printing enterprises because of its fast lamination speed, no solvent emission, no solvent residue, and low processing cost. However, in the yellow ink printed on ordinary PVC wood grain film, yellow pigments are It is a high-molecular organic structure material, which is especially easy to fade when exposed to high temperature. The structure of the yellow pigment will change during the compounding process of printing without glue and high temperature (200°C), resulting in color change. In the specific application of printed products, it will also cause color fading when exposed to light.

In addition, the oil absorption value of the yellow pigment is relatively high, the wetting and dispersibility is poor, the resin has poor encapsulation of the pigment, and the color development of the ink is poor, which cannot meet the color concentration requirements of the product and can meet the requirements of customers.

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