Innovative Applications of Penetrants in Functional Textile Finishing

Demand for functional textiles (e.g., waterproof, antibacterial) is rising, but dense fabrics (e.g., oxford, down-proof materials) struggle with uneven functional agent penetration. Chemi Tech penetrants overcome this via molecular innovation and process adaptation:

Deepening Waterproof-Breathable Finishing

C6 waterproofers require uniform fiber coverage to form continuous films. Chemi Tech’s fluorocarbon-modified penetrants reduce dynamic surface tension (≤25 mN/m), enabling rapid infiltration into yarn gaps without surface pooling (“white residue”). In nylon taslan applications, adding 0.2% penetrant elevates waterproof rating from Level 4 to 5 while maintaining moisture permeability >8000 g/m²/24hr.

Promoting In-Situ Antimicrobial Fixation

Long-lasting antimicrobial effects (e.g., nano-silver, quaternary ammonium salts) depend on deep fiber penetration. Cationic penetrants guide charge-directed adsorption into cotton micropores, increasing agent retention. Treated antibacterial towels retain >85% bacterial inhibition after 50 washes—20% higher than conventional methods.

Uniform Distribution of Phase-Change Microcapsules (PCM)

Thermoregulatory fabrics rely on even PCM implantation. Low-shear penetrants utilize a “microfluidic effect” to maintain microcapsule integrity during padding and drive inward migration. In outdoor jacket linings, PCM coverage increases by 35%, extending temperature regulation to 8 hours.

The amount of Chemi Tech’s penetrant added can be automatically adjusted according to the weight of the fabric (corresponding to a concentration of 0.1% -0.5% for 80-200 g/m ² fabric), and is applied in high-end products such as sports speed drying clothes and medical protective clothing, promoting the upgrading of functional textiles to precision and durability in production.