PVC table mat extrusion and calendering special antibacterial agent
I. Overview
PVC soft glass table mats and table mats are commonly used in family, dining, and office environments where they are frequently exposed to water stains and oil residues. Due to prolonged contact with these substances, they are prone to bacterial and mold growth, resulting in odors, mold spots, and stickiness. Conventional antibacterial additives are not suitable for the PVC extrusion and calendering high-temperature process, and may cause production and finished product defects such as yellowing, precipitation, poor dispersion, and short antibacterial duration.
Dalian Tianwei's PVC table mat extrusion and calendering special antibacterial agent is specifically developed for the soft PVC molding process. It is resistant to high temperatures, has good compatibility, does not affect transparency and hand feel, is suitable for large-scale production, and can effectively impart long-lasting antibacterial and mold prevention properties to the table mats.
II. Core Requirements of the Antimicrobial Agent for PVC Calendering Extrusion Process
The mainstream production of PVC table mats is extrusion + multi-roll calendering process, with a processing temperature of 160-190℃. The threshold for antibacterial additives is extremely high:
It needs to be resistant to high temperatures without decomposition or yellowing, ensuring the appearance of transparent products;
The powder dispersion is excellent, without white spots or particle flaws, reducing the defect rate;
It is compatible with plasticizers and stabilizers, eliminating the problems of precipitation, oil leakage, and fogging;
It is safe for food contact and complies with standards for food contact, with low VOC and no irritation.
III. Core Product Advantages
Dalian Tianwei's PVC table mat special antibacterial agent adopts a silver-zinc composite inorganic slow-release system and nano carrier modification technology, which is compatible with the soft PVC system. Its core advantages are prominent:
High-temperature compatibility for mass production: Decomposition temperature ≥ 240℃, perfectly covering the processing temperature range of PVC, no oxidation or color change during high-temperature molding, and no impact on the transparency of the table mat.
Good dispersion, high yield: Nano particle size + surface modification, uniform mixing without agglomeration, no blemishes or white spots in the calendering finished product, suitable for high-speed continuous production lines.
Low addition, cost control: The conventional addition amount is only 0.3%-1%, no need to significantly modify the original formula, and low cost can achieve an upgrade in antibacterial function.
Long-lasting antibacterial without loss: Embedded antibacterial in the base material, not a surface coating, resistant to water washing and wiping, stable antibacterial and mold prevention effect over a long period of use.
Food-grade environmentally friendly compliance: Meets GB 4806.7 food contact standards, complies with RoHS and REACH certification standards, non-toxic and low odor, suitable for dining tables and children's tabletop products.
Does not change the base material properties: Does not affect the softness, toughness, transparency, and printing performance of PVC, compatible with new and old equipment, no need to change the production line.
