Matting soft-touch anti-fingerprint packaging material and preparation method thereof

Abstract

The invention relates to a preparation method of an extinction soft-touch anti-fingerprint packaging material. The preparation method comprises the following steps: (1) mixing deionized water and isopropanol to prepare a diluent; (2) adding a certain amount of the diluent into waterborne polyurethane emulsion, fully and uniformly mixing, then adding a certain amount of a self-extinction waterbornepolyurethane resin, and uniformly stirring at room temperature to obtain a mixed solution I; (3) adding nano silicon oxide into the mixed solution obtained in the step (2), and fully and uniformly stirring to obtain a mixed solution II; (4) sequentially adding a surface leveling agent, a wetting agent and a slipping aid into the mixed solution II, and uniformly stirring to obtain a macromolecularwater-based coating solution; and (5) carrying out printing and coating processing on the surface of a high-transparency plastic material by using the macromolecular water-based coating solution prepared in the step (4), and then drying the coated material to prepare the soft-touch packaging material capable of eliminating the surface gloss of the material, improving the wear-resistant effect ofthe material and preventing touch fingerprint residues.

Description

technical field [0001] The invention relates to the technical field of packaging materials, in particular to a matte soft-touch anti-fingerprint plastic material and a preparation method thereof. Background technique [0002] As a substrate, packaging materials can highlight the characteristics of the goods to be packaged and improve the quality of product packaging. Therefore, with the continuous improvement of product quality and quality, people's quality requirements for packaging materials are also increasing. Due to the continuous development of science and technology and the change of people's payment methods, QR codes need to be attached to the surface of many packaging materials. Due to the high gloss of the existing packaging materials, it is easy to reflect when people scan the QR code and it is not easy to scan Information; high-quality packaging materials require the surface to have the characteristics of good matting effect, soft touch, dust resistance and no fi...

AI Technical Summary

Problems solved by technology

Due to the continuous development of science and technology and the change of people's payment methods, QR codes need to be attached to the surface of many packaging materials. Due to the high gloss of the existing packaging materials, it is easy to reflect when people scan the QR code and it is not easy to scan Information; high-quality packaging materials require the surface to have the characteristics of good matting effect, soft touch, dust resistance and no fingerprint residue. Now it usually includes flocking materials, spraying materials and film materials, but the above three materials themselves and production The method is difficult to meet the requirements of high-quality packaging materials at the same time: ①Flocking materials: the glue volatilizes organic gases to cause environmental pollution, the fluff splashes and pollutes the workshop environment, the flocking layer is easy to fall off and pollutes the packaged products, and the leftover materials cannot be recycled and reused, which increases the cost. Not conducive to resource regeneration and environmental protection; ② Spraying materials: can not be evenly sprayed on the complex product surface, prone to processing defects such as color difference; involving baking and secondary processing, it is easy to cause deformation of the original product and affect the size, resulting in defects, It can only be used for the treatment of some heat-resistant materials; the processing cycle is long and the cost is high, so this process is difficult to adopt on a large scale; Stretching of such complex cavities is prone to problems such as uneven stretching and penetration; and the scraps of film-coated materials cannot be recycled and reused, which increases costs and is not conducive to resource regeneration and environmental protection.