Credit card surface layer and preparation method thereof

Abstract

The invention discloses a credit card surface layer and a preparation method thereof. The credit card surface layer comprises the following components in parts by mass: 5-15 parts of polyvinyl chloride, 2-4 parts of butyl tin mercaptide, 6-8 parts of an environment-friendly plasticizer, 1-3 parts of a processing assistant, 1-3 parts of an ultraviolet absorbent, 1-3 parts of an antistatic agent, 6-8 parts of zinc silicate, 6-8 parts of low molecular weight acrylic acid copolymer, 1-2 parts of an enhancer, 1-3 parts of a laser marking compound, 1-3 parts of a brightening agent, 1-3 parts of a hardening agent, 3-5 parts of a heat stabilizer and 1-3 parts of a lubricant. According to the invention, the credit card surface layer has better anti-ultraviolet, wear-resistant and scratch-resistant performances.

Description

Technical field [0001] The invention relates to the field of new materials, in particular to a credit card surface layer and a preparation method thereof. Background technique [0002] With the continuous advancement of science and technology and the continuous application of new technologies, the use of various credit cards and contactless IC cards has developed rapidly, and the application fields have become more and more extensive. The base materials required for making all kinds of credit cards and contactless IC cards In addition to the particularity of ordinary PVC hard sheets, it also has higher requirements in terms of rigidity, toughness, and shading properties. It also emphasizes the new requirements of scratch resistance, abrasion resistance, and UV aging resistance on the surface of various cards produced. At present, various PVC card base material manufacturers at home and abroad are not doing ideally in terms of anti-ultraviolet aging, abrasion resistance and scratc...

AI Technical Summary

Problems solved by technology

[0002] With the continuous advancement of science and technology and the continuous application of new technologies, the use of various credit cards and contactless IC cards has developed rapidly, and the application fields have become more and more extensive. The base materials required for making various credit cards and contactless IC cards In addition to the particularity of general PVC hard sheet, it has high requirements in terms of rigidity, toughness, light-shielding, etc., and also emphasizes new requirements such as scratch resistance, abrasion resistance, and UV aging resistance on the surface of various cards produced. At present, the manufacturers of PVC card base materials at home and abroad are not ideal in terms of anti-ultraviolet aging, wear resistance, and scratch resistance, and there are still great improvements.