By Baico Biotech 丨 Textile Enzyme 丨 BIO-SCOUIRNG ENZYME 丨 BBT-PK-Isabella
For cotton towel dyeing mills, the pre-treatment process not only determines the quality of subsequent dyeing but also directly affects production efficiency and overall cost. Conventional processes usually require multiple separate steps, including desizing and scouring, bleaching, and bio-polishing. Among them, desizing and scouring require the addition of amylase, wetting agents, and scouring agents. Bleaching usually requires chemicals such as caustic soda, hydrogen peroxide, and hydrogen peroxide stabilizers, while bio-polishing requires additional cellulase. In addition, in conventional processes, after desizing and scouring, the bath usually needs to be drained and refilled before bleaching. Bio-polishing is also generally carried out as a separate process before dyeing. Frequent draining, refilling, and bath changes make the process more complicated, increase chemical consumption, water and energy consumption, extend processing time, and increase wastewater treatment and environmental management pressure.
BBT has developed RF838-W(D), a multi-functional bio-scouring enzyme specially designed for cotton towel pre-treatment. It provides multiple functions, including desizing, bio-scouring, bio-polishing, and wetting. Through the synergistic action of multiple enzyme components, RF838-W(D) can completedesizing, scouring, and bio-polishing in the same bath. Without draining the bath, the process can directly increase the temperature to 95°C for subsequent boiling treatment, achieving a smooth connection of the pre-treatment process. At the same time, RF838-W(D) moves the conventional pre-dyeing bio-polishing step forward to the pre-treatment stage. While maintaining excellent polishing performance, it greatly simplifies the process, reduces bath changes, shortens processing time, and improves production efficiency. In addition, during the bio-scouring process, RF838-W(D) effectively removes natural impurities through enzymatic catalysis. It can reduce caustic soda usage while keeping hydrogen peroxide consumption basically unchanged. Compared with conventional scouring processes, RF838-W(D) can reduce caustic soda consumption by approximately 30% while achieving a whiteness level comparable to conventional processes, achieving a balance between lower chemical consumption and stable fabric quality.
In addition to its multi-functional advantages, RF838-W(D) also has excellent process adaptability. The product works stably within a wide temperature range of 40–60°C, with a suitable pH range of 6.5–8.0. The treatment time is only 30–60 minutes, and stable enzyme performance can still be maintained under a wide liquor ratio range of 1:5–1:20. This broad process adaptability allows RF838-W(D) to meet the requirements of different production equipment and process conditions, providing towel dyeing mills with higher process tolerance and production flexibility while ensuring stable and consistent pre-treatment performance.
RF838-W(D) uses a gentle enzymatic treatment method to selectively remove sizing agents and natural impurities such as pectin. It reduces damage to cotton fibers, maintains fiber integrity, decreases fiber-to-fiber friction, and helps fabrics maintain better strength and softness. Meanwhile, towels treated with RF838-W(D) show excellent absorbency, with capillary absorption time controlled within 1 second. This provides a more uniform fabric base for subsequent bleaching and dyeing, helping light-colored products achieve brighter and more even dyeing results.
Furthermore, RF838-W(D) can reduce the usage amount of amylase, neutral cellulase, wetting agents, scouring agents, caustic soda, and hydrogen peroxide. It reduces COD and BOD emissions and lowers wastewater treatment pressure. At the same time, by reducing processing steps and decreasing the consumption of chemicals, water, electricity, and steam, RF838-W(D) helps towel dyeing mills reduce overall production costs and achieve more environmentally friendly, efficient, and sustainable production.

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