A kind of production process of antibacterial and mildew-resistant synthetic leather

Abstract

The invention discloses a production process of antibacterial and mildew-proof synthetic leather in the technical field of synthetic leather. The process includes the following steps: step 1: preparing organosilicon / waterborne polyurethane interpenetrating network polymer emulsion containing zinc phthalocyanine, foaming slurry and surface treatment agent; step 2: sending the release paper into a preheating oven for heating; Step 3: On the release paper, evenly coat the organic silicon / waterborne polyurethane interpenetrating network polymer emulsion containing zinc phthalocyanine to form a surface layer, and send it to the first oven; Step 4: Evenly coat the foaming slurry on the surface layer to form The foam layer is sent to the second oven; Step 5: Apply adhesive glue on the foam layer, and then cover it with polyester cloth, and send it to the third oven; Step 6: After cooling down, peel off the release paper and the surface layer to obtain the semi-finished antibacterial and mildew-proof synthetic leather; step 7: coating the surface of the semi-finished antibacterial and mildew-proof synthetic leather with a surface treatment agent, and then sending it into the fourth oven to obtain the antibacterial and mildew-resistant synthetic leather. The invention has the advantages of safe use and remarkable antibacterial and antifungal effects.

Description

technical field [0001] The invention relates to the technical field of synthetic leather, in particular to a production process of antibacterial and mildew-proof synthetic leather. Background technique [0002] Polyurethane (PU) synthetic leather, as a type of polyurethane elastomer, has the appearance, feel and mechanical properties similar to natural leather, and is currently the most popular and mainstream product in synthetic leather. Then, the special molecular structure of polyurethane, the fiber components in the synthetic leather base cloth and the auxiliary agents contained in the synthetic leather such as protein adhesives, lignocellulose fillers, etc. can provide a rich source of nutrients for the growth of microorganisms, making the polyurethane synthetic leather extremely It is easily rotted and deteriorated by microorganisms, and the service life is greatly shortened. At the same time, the growth and reproduction of pathogenic microorganisms on the surface will...

AI Technical Summary

Problems solved by technology

Natural product antibacterial agents are rarely used due to defects such as poor heat resistance, short duration of drug effect, and difficulty in mass production; organic antibacterial agents and polymer antibacterial agents are easily hydrolyzed, highly volatile, and have certain toxicity and other problems. In terms of its application, in contrast, inorganic antibacterial agents have a higher safety factor, but have problems such as sterilization and antibacterial response time. In addition, these blended antibacterial agents are easy to continue to migrate from leather products to the external environment. Affects the persistence of antibacterial and mildew proof of finished leather; the antibacterial agent released has certain irritation and even toxicity to the human body, threatening the health and safety of consumers