1. Excellent Spinnability for Fine Denier Fibers

One of the strongest advantages of this masterbatch is its excellent spinnability. It can be used to produce fine-denier filaments such as 75D/72F without causing processing resistance, filament breakage, or uneven denier distribution. This allows manufacturers to maintain stable production speeds and produce fibers with smooth texture and high uniformity.

Because the copper ions are well-encapsulated within the polymer, the masterbatch disperses evenly during melt extrusion, ensuring that the resulting yarn maintains consistent color, stability, and antibacterial activity.

2. Powerful Antibacterial Effect—Up to 99% Sterilization Rate

Copper ions are exceptionally effective at killing common microorganisms. Their antibacterial mechanism works through:

• Disrupting microbial cell membranes

• Destroying bacterial proteins

• Inhibiting enzyme activity

• Blocking microbial metabolism

As a result, the masterbatch can eliminate up to 99% of bacteria, including Escherichia coli, Staphylococcus aureus, molds, and fungal strains that typically flourish in warm, moist environments such as shoes and athletic apparel.

This makes the masterbatch an ideal solution for industries seeking long-lasting, built-in hygiene performance.

3. Outstanding Deodorizing Ability

Unlike standard odor-resistant treatments that coat the surface of finished fabrics, copper ions work naturally by neutralizing odor-causing molecules. They can adsorb common gases responsible for unpleasant smells, such as:

• Ammonia

• Hydrogen sulfide

• TVOCs

This gives textiles a fresher feeling, reduces long-term odor buildup, and enhances the comfort of products worn for extended periods.

4. Environmentally Friendly and Non-Toxic

The masterbatch is produced without the use of hazardous chemicals. Copper’s antibacterial mechanism is natural, physically safe, and widely recognized. As a result, it is:

• Free of toxic or harmful substances

• Environmentally safe

• Suitable for products in direct contact with the skin

Unlike some chemical antibacterial agents, copper does not volatilize or degrade into harmful byproducts. Its effectiveness is built into the fiber structure, making it both durable and eco-friendly.

5. Long-Lasting Antibacterial Performance

Because the copper ions are incorporated into the fiber itself rather than applied as a topical coating, the antibacterial function:

• Does not wash off

• Does not fade with wear

• Remains active throughout the textile’s lifespan

This gives it a major advantage over post-treatment antibacterial finishes, which gradually lose effectiveness after washing.