Select the original manufacturer of plastic antibacterial masterbatch

06-07-2026

The rubber and plastic products have been upgraded with antibacterial functions. The stability, safety and processing compatibility of the core raw materials directly determine the quality of the finished products. Many rubber and plastic processing factories and product enterprises, when producing antibacterial plastics, will look for reliable and well-coordinated plastic antibacterial masterbatch brands. Dalian Tianwei , which has been deeply engaged in the field of microbial control additives for many years, relies on its own R&D and production system to create a full range of dedicated plastic antibacterial masterbatches that are compatible with multiple substrates and multiple processes. From formula development, sample testing to production support, it comprehensively solves various production pain points in plastic antibacterial modification. 


1. Self-developed silver-zinc sustained-release antibacterial core, creating a stable and long-lasting base for the masterbatch

All plastic antibacterial masterbatches produced by Dalian Tianwei are equipped with the self-developed nano-silver-zinc composite sustained-release antibacterial system. Different from simple compound raw materials, the core performance of the antibacterial masterbatch is controlled from the source:


Broad-spectrum and powerful antibacterial and mold prevention capabilities 

The internal active ions in the masterbatch are evenly distributed. After molding, the products have a stable killing rate of 99.9% against hundreds of pathogenic bacteria such as Escherichia coli, Staphylococcus aureus, Candida albicans, and Aspergillus niger. At the same time, they can inhibit the growth of odors. In a high-humidity and sealed environment, they are not prone to developing mold spots over a long period of use. This is achieved by physically disrupting the cell membranes of microorganisms, without causing bacterial resistance. The long-term production performance shows no significant decline.


Slow-release locking technology, with the antibacterial cycle synchronized with the product's lifespan. 

The antibacterial active ingredients are encapsulated by special carriers, and after molding, the ions release slowly. After washing with water, being exposed to high temperatures, or long-term outdoor use, the antibacterial components are not easily lost. This technology can achieve full-life-cycle antibacterial protection for household appliances, water purification membranes, outdoor building materials, and plastic products that come into prolonged contact.


High-temperature resistant and anti-yellowing, suitable for various high-temperature processing. 

The masterbatch has excellent thermal stability and can withstand processing temperatures ranging from 300 to 500 degrees Celsius. Combined with the exclusive dispersion antioxidant system, it is unlikely to yellow or change color during injection molding, blown film, extrusion, and drawing processes. The appearance of transparent and light-colored plastic products remains unaffected. 


II. Comprehensive range of dedicated antibacterial masterbatches covering all plastic substrates and processing methods

Dalian Tianwei has divided the dedicated masterbatch models based on different plastic raw materials, molding processes, and application scenarios. There is no need for customers to mix the powder by themselves. They can directly add the materials for production, reducing processing losses:


PE/PP dedicated antibacterial masterbatch: Suitable for food films, plastic lunch boxes, storage boxes, baby toys, plastic pipes. It has strong dispersion and does not clog the film during blown molding, and the film has no crystal points;


ABS/PC antibacterial masterbatch: Used for appliance shells, bathroom accessories, plastic kitchenware, high-end daily necessities. It does not affect the physical properties such as impact resistance and light transmittance of the material;


PVC/TPE wood-plastic dedicated antibacterial masterbatch: Suitable for floors, guardrails, plastic foot mats, soft rubber daily necessities. It combines antibacterial and weather resistance and mold resistance;


Food contact grade antibacterial masterbatch: Complies with food contact safety standards, with low ion migration, no harmful substances leaching, and is suitable for water cups, fresh food trays, children's tableware, etc.;


Customized functional composite masterbatch: Can be customized with antibacterial + mold resistance, antibacterial + weather resistance formulas, suitable for special sub-sectors such as hollow fiber membranes in clean water and medical plastic accessories.


The entire masterbatch series uses a new base material carrier for pre-dispersed granulation. The particles are uniform and have good fluidity. It is easy to mix with the original plastic raw materials, and the factory does not need to significantly adjust the existing production line process. The entry threshold is low.


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