Zinc-based antibacterial and mold-preventing agent for PP material
Polypropylene (PP) is one of the most widely used general-purpose plastics - food storage containers, refrigerator liners, children's tableware, medical devices, home appliance shells, PP spun-bond fabric... These products frequently come into contact with food, human bodies, and humid environments, and are highly prone to the growth of microorganisms such as Escherichia coli, Staphylococcus aureus, and Aspergillus niger.
Adding special antibacterial and mold-preventing agents during the production of PP products can endow the products with the ability to inhibit the growth of microorganisms from the material source. This is a mature technical path in the industry. Among various antibacterial agents, zinc-based antibacterial agents are the ideal choice for food contact and transparent PP products scenarios due to their high safety, colorless transparency, high-temperature resistance, and non-production of drug resistance. Tianshi Blue Shield ZN90 zinc ion antibacterial agent uses zinc ions as the active ingredient, is safe and environmentally friendly, has colorless transparency, can withstand temperatures below 400°C, and is suitable for all PP processes such as injection molding, blow molding, and spinning, helping to upgrade the quality of PP products.
01 Why PP materials need zinc-based antibacterial and mold-preventing agents
Microbial risks of PP products
PP materials themselves do not have antibacterial capabilities. In humid environments and frequent contact, they face multiple microbial threats:
Hygiene requirements in food contact scenarios: PP storage containers, tableware, refrigerator liners, etc. directly contact food, and if bacteria grow on the surface, they may contaminate food and cause food safety issues. Zinc ions are elements present in the human body and necessary for health, and are harmless to the human body. They achieve broad-spectrum antibacterial effects by interfering with and destroying the proteins inside bacteria.
Special requirements for transparent products: Transparent PP products (such as storage containers, food containers) have strict requirements for the particle size and dispersion of antibacterial agents - if the particle size is too large or the dispersion is uneven, the fogging and transparency of the product will increase. Zinc ion antibacterial agents have the characteristic of colorless transparency, which is suitable for scenarios with requirements for transparency.
Unique advantages of zinc-based antibacterial agents
Compared to silver-based antibacterial agents, the core advantage of zinc-based antibacterial agents lies in:
Safe and non-irritating: Zinc ions are elements present in the human body and necessary for health, safe, healthy, and non-irritating, and do not produce drug resistance.
Colorless transparency: Suitable for PP products with requirements for transparency, without affecting the color of the base material
Good heat resistance: Can withstand temperatures below 400°C during processing, suitable for all PP processes
Durable and color-resistant: Good anti-coloring performance, no yellowing or discoloration over time
Dalian Tianwei: PP-specific zinc-based antibacterial and mold-preventing solution
Dalian Tianwei Chemical Co., Ltd.'s mold-preventing agent is an antibacterial agent powder with zinc ions as the active ingredient, specially designed for fields requiring long-term antibacterial in plastics, rubber, coatings, elastomers, etc.
Broad-spectrum antibacterial and mold-preventing, safe and non-irritating
It has good inhibitory effects on bacteria and molds:
Bacterial inhibition: Has obvious inhibitory effects on common pathogenic bacteria such as Escherichia coli, Staphylococcus aureus, Pneumonia bacillus, and Candida albicans
Mold inhibition: Also effective against molds such as Aspergillus niger, Penicillium citrinum, Rhizopus stolonifer, and Pseudomonas aeruginosa
Zinc ions are elements present in the human body and necessary for health, safe and harmless to the human body, and achieve broad-spectrum antibacterial effects by interfering with and destroying the proteins inside bacteria, and have good inhibitory effects on various fungi with protein shells.
Colorless transparency, without affecting the transparency of PP
For transparent PP products, the transparency of the antibacterial agent is the core consideration for selection. ZN90 can be uniformly dispersed in high-molecular materials, colorless and transparent, without affecting the color of the base material. After addition, the transparency of the product is stable, without yellowing, grayish, or crystal point defects, suitable for high-end transparent PP products such as storage containers.
High-temperature resistance, suitable for all PP processes
The processing temperature of PP is usually in the range of 190-260°C. ZN90 can withstand processing temperatures below 400°C for a short time, with good anti-coloring performance. It can meet the mainstream antibacterial and mold-preventing standards such as ISO 22196, JIS Z 2801, GB/T 31402, and ASTM G21 for testing requirements.
Safe and environmentally friendly, compliant with food contact grade standards
The mold inhibitor of Dalian Tianwei Chemical complies with the GB 9685-2016 food contact material standards and the requirements of the EU RoHS and REACH. It can be safely used in food contact scenarios, such as cutting boards, food containers, refrigerator inner shells, PP spunbond fabric, etc.
Application fields
The mold inhibitor of Dalian Tianwei Chemical can be used in fields that require long-term antibacterial properties, such as plastics, rubber, coatings, elastomers, sheets, pipes, ceramics, etc. In the PP field, it is particularly suitable for:
PP fresh-keeping boxes, food containers, disposable food packaging
Refrigerator inner shells, transparent storage objects
Children's tableware, tableware, milk bottle accessories
PP spunbond fabric, non-woven fabric
Human contact materials: handle, sheath, etc.
