PU applying silicone rubber zipper film, coating technology and application thereof

Abstract

The invention discloses a PU applying silicone rubber zipper film, which comprises a processed PU film and a silicone rubber layer, the PU film is applied on the silicone rubber layer, the silicone rubber layer comprises the following raw materials in parts by mass: 100-120 parts of a vinylsilane rubber component A, 100-120 parts of a vinylsilane rubber component B, 10-30 parts of a color paste pigment, 3-10 parts of a silane coupling agent, 3-10 parts of low-viscosity hydroxyl silicone oil, and 1-3 parts of polyether modified hydrogen silicone oil. The invention also discloses a coating technology of the PU applying silicone rubber zipper film and an application thereof. The coating technology has the advantages that the process is simple, cost is low, the production efficiency is high, the zipper film is easily processed, post-forming is realized, weatherability is good, hydrolysis resistance and high/low temperature resistance are good, color fastness is good, and cleaning is easy,and the PU applying silicone rubber waterproof zipper film has the advantages that the waterproof performance is good, the cost is low, and the usage life is long.

Description

technical field [0001] The invention relates to the technical field of zipper film manufacturing, in particular to a PU-bonded silicon rubber zipper film, a coating process and its application. Background technique [0002] Zipper is a product that is often used in people's daily life, and is often used at the interface or seal of bags, clothing, and shoes. The zipper sliders and chain teeth of traditional zippers are mostly made of metal, plastic and other materials. These zippers themselves do not have waterproof function and often bring a lot of inconvenience to users in rainy weather. [0003] In order to overcome this problem, the industry has designed and developed zippers with waterproof function, coating a layer of PU resin on the surface of the zipper, or attaching a layer of PU film by high-temperature hot pressing. For example, the Chinese utility model patent with the publication number of 205390571U discloses a high-temperature and wear-resistant TPU film water...

AI Technical Summary

Problems solved by technology

For example, the Chinese utility model patent with the publication number of 205390571U discloses a high-temperature and wear-resistant TPU film waterproof zipper. One side of the product is provided with a TPU elastic seat, and the other side is provided with a TPU elastic sheet. However, due to its poor aging resistance, weather resistance, hydrolysis resistance, and acid and alkali resistance, the TPU film is prone to adverse experiences such as shortened service life, hardening, and brittleness of the zipper during use.