In the realm of textile chemicals, optical brighteners are vital for achieving desired levels of whiteness and vibrancy. Understanding the specific properties and applications of each brightener is key for manufacturers aiming for optimal results. This article provides an in-depth look at Optical Brightening Agent BAC-H, a prominent product available from reputable suppliers in China.

Optical Brightening Agent BAC-H, identified by CAS number 95078-19-6, is a chemical auxiliary belonging to the benzimidazole derivative class. This molecular structure is foundational to its ability to absorb ultraviolet light and fluoresce, thereby enhancing the perceived whiteness of materials. A key characteristic noted in its specification is its 'Cationic' ionic character. This classification is significant for textile applications as it indicates the brightener carries a positive charge.

The cationic nature of BAC-H makes it particularly suitable for fibers that possess a negative charge, such as acrylic and certain synthetic materials. This ionic interaction, known as substantivity, ensures that the brightener adheres effectively to the fiber surface during the application process. This strong affinity translates into uniform brightening and improved durability of the white effect, even after repeated washing cycles.

The typical appearance of BAC-H is described as a brown transparent liquid, with a specific requirement for pH value (10g/L) to be between 3.0-5.0. This indicates its optimal performance range within acidic conditions. Its applications are primarily focused on post-processing auxiliaries in textiles, especially where a high degree of whiteness and a specific shade are required. The product boasts good stability, particularly for applications involving chlorite bleach, and provides a bluish-violet white shade.

For businesses looking to buy optical brightening agents, it's important to consider the complete profile of the chemical. BAC-H's specifications point towards its effectiveness in enhancing acrylic fibers and fabrics. As a leading manufacturer and supplier in China, we offer detailed product information and technical support to ensure our clients can effectively utilize this high-performance OBA. Understanding these properties allows textile manufacturers to make informed decisions and achieve superior textile finishing results.