The function of adding antibacterial and antifungal agents to PU polyurethane leather
The function of adding antibacterial and antifungal agents to PU polyurethane leather
1. Extend service life and reduce maintenance costs
Inhibit the growth of microorganisms
The surface of polyurethane leather is prone to adsorbing organic substances such as dust, sweat and grease, providing a nutrient source for bacteria and mold. In a humid environment (such as during the rainy season or in high-humidity areas), the reproduction rate of microorganisms accelerates, causing mold spots, discoloration, stickiness and even rot on the leather surface.
Antibacterial and antifungal agents effectively block the growth chain of microorganisms by destroying their cell membrane structure, interfering with metabolic processes or inhibiting enzyme activity, thereby reducing leather degradation caused by microbial erosion.
Reduce physical damage
The organic acids secreted by mold can corrode the surface coating of leather, resulting in a decrease in luster and a harder hand feel. Bacterial reproduction may cause local swelling or cracking. Antibacterial and antifungal agents can reduce the risk of such damage and extend the stability of the appearance and performance of leather.
2. Enhance hygiene and safety to meet health needs
Reduce the spread of pathogens
Polyurethane leather is widely used in scenarios that come into close contact with the human body, such as footwear, furniture, and automotive interiors. If bacteria (such as Staphylococcus aureus, Escherichia coli) or molds (such as Aspergillus, penicillium) breed on the leather surface, it may cause skin allergies, respiratory infections or cross-infections.
Antibacterial and antifungal agents can significantly reduce the microbial load, providing users with a safer contact environment. They are especially suitable for fields with strict hygiene requirements such as medical care, elderly care, and children's products.
Inhibit the generation of unpleasant odors
During the metabolic process of microorganisms, volatile organic compounds (such as hydrogen sulfide and ammonia) are released, causing leather to develop an unpleasant odor. Antibacterial and antifungal agents reduce the source of odors from the source by blocking the reproduction chain of microorganisms and enhance the product user experience.
3. Enhance the added value of products to meet the differentiated demands of the market
Functional upgrade
Beyond basic performance such as wear resistance, breathability and softness, antibacterial and antifungal functions have become the key to product differentiation and competition. For instance, sports shoe brands can claim that the upper materials of their shoes have the property of "72-hour antibacterial and anti-mold" to attract health-conscious consumers.
Comply with environmental protection and health standards
As global attention to environmental protection and health issues increases, polyurethane leather with added antibacterial and antifungal agents is more likely to pass international certifications (such as the EU Reach, RoHS, and the US EPA), meet export market access requirements, and expand high-end application scenarios.
4. Adapt to special environmental requirements and expand application fields
High humidity environment
Polyurethane leather products (such as seats and waterproof pads) used in damp places like bathrooms, kitchens, and around swimming pools are highly prone to surface blackening and delamination due to mold growth if no fungicides are added. Antibacterial and antifungal treatment can significantly enhance its environmental adaptability.
