In the demanding world of textile manufacturing, achieving exceptional whiteness requires robust chemical solutions. Chlorite bleaching is a common and effective method for treating various fibers, but it demands auxiliaries that can withstand its chemical environment. This is where high-performance optical brighteners, like our Optical Brightening Agent BAC-H, become indispensable. As a leading supplier and manufacturer from China, we offer a product specifically designed for stability and effectiveness in such processes.

Optical Brightening Agent BAC-H, derived from benzimidazole, is a cationic optical brightener renowned for its excellent compatibility with acrylic and secondary acetate fibers. Its primary function is to absorb ultraviolet light and re-emit it as visible blue light, making fabrics appear whiter and brighter by counteracting yellowing. What sets BAC-H apart, however, is its notable stability under chlorite bleaching conditions. This characteristic is crucial for textile mills that utilize chlorite for achieving a base level of whiteness before or during the application of finishing agents.

The chemical makeup of BAC-H allows it to maintain its fluorescent properties even in the presence of reducing agents and the oxidative environment typical of chlorite bleaching. This ensures that the intended whitening effect is not diminished during the bleaching cycle, leading to a more uniform and intense white shade on the final product. The agent imparts a distinctive bluish-violet hue, adding a desirable cool tone that enhances overall perceived whiteness.

For procurement professionals seeking to buy optical brightening agents, understanding the application parameters is key. When using Optical Brightening Agent BAC-H in conjunction with chlorite bleaching, specific process parameters are recommended. For instance, a common application involves using 0.2-1.5% of the agent (o.w.f.) in the dye bath, with the pH adjusted to 3-4 using acids like formic acid or oxalic acid dihydrate. The process is typically carried out at temperatures of 90-98°C for approximately 40-60 minutes. Maintaining these conditions is vital for maximizing the agent’s efficacy and ensuring stable, reproducible results.

As a dedicated manufacturer and supplier in China, we are committed to providing high-quality textile auxiliaries like BAC-H. Our competitive pricing for bulk orders makes it an attractive option for textile mills aiming to optimize their finishing processes. By choosing our Optical Brightening Agent BAC-H, you are selecting a product that offers both exceptional performance during challenging bleaching stages and a reliable supply chain to meet your production demands.