Long-acting antibacterial and mildew-proof artificial leather and preparation method thereof

By employing a dual-layer structure in artificial leather, where a foaming layer and a surface treatment layer are synergistically loaded with an antibacterial and antifungal compound, and combining inorganic antibacterial agents with organic antifungal agents and microencapsulation technology, the problem of unstable antibacterial and antifungal effects of artificial leather under high temperature and high humidity environments has been solved, achieving long-lasting antibacterial and antifungal performance and stability.

CN122588892APending Publication Date: 2026-08-18DINGZHOU KUNSHENG NEW MATERIAL TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202611021290.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-07-09
Publication Date
2026-08-18

AI Technical Summary

Technical Problem

Existing synthetic leather is prone to bacterial and mold growth in high temperature and high humidity environments. Existing antibacterial agents are easy to migrate, volatilize, and run off, resulting in a rapid decline in antibacterial and anti-mold effects, which affects product performance and lifespan.

Method used

It adopts a two-layer structure with a foam layer and a surface treatment layer synergistically loading antibacterial and antifungal composite agent. It uses a combination of inorganic antibacterial agent and organic antifungal agent, and through a microcapsule encapsulation structure, it ensures that the antibacterial active components are stored in the material and continuously act on the surface.

Benefits of technology

It significantly improves the long-lasting antibacterial and antifungal properties of artificial leather, with an antibacterial rate of no less than 99% and an antifungal level of 0 or 1. It also maintains stability during long-term use, avoiding the aggregation and loss of antibacterial agents.

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Abstract

This invention discloses a long-lasting antibacterial and mildew-resistant artificial leather, relating to the field of artificial leather preparation technology. It comprises a base fabric layer, a foaming layer, and a surface treatment layer sequentially composited. The foaming layer is prepared from the following raw materials in parts by weight: 100 parts polyvinyl chloride resin, 40-80 parts plasticizer, 2-8 parts stabilizer, 1-10 parts foaming agent, 0.5-8 parts antibacterial and mildew-resistant composite agent, and 1-10 parts additives. The antibacterial and mildew-resistant composite agent includes a supported inorganic antibacterial agent and an organic mildew-resistant agent. The supported inorganic antibacterial agent is one or more of silver-loaded zeolite, silver-loaded zirconium phosphate, nano-zinc oxide, and nano-copper oxide. This invention employs a dual-layer structure design where the foaming layer and surface treatment layer synergistically support the antibacterial and mildew-resistant composite agent, enabling the antibacterial active components to form a reservoir within the material and continuously exert their effects on the material surface, thereby significantly improving the long-lasting antibacterial and mildew-resistant performance of the artificial leather.
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