Optical Brightening Agent 4BK: Superior Whitening for Cotton & Blended Fabrics

Achieve unparalleled brightness and a vibrant white finish for cotton, polyester, and blended textiles with our advanced OBA 4BK solution.

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Key Advantages of OBA 4BK

Unrivaled Whitening Power

Experience a high and brilliant white maximum, providing an exceptional blue-white shade that truly makes your fabrics stand out, crucial for achieving desired textile whitening.

Superior Process Stability

Optical Brightening Agent 4BK exhibits remarkable stability to alkalis, peroxide, and electrolyte, ensuring consistent performance even under demanding dyeing and finishing conditions.

Efficient & Economical Application

Its good water solubility coupled with very high bath exhaustion ensures efficient application and minimizes waste, making it a cost-effective solution for textile auxiliary needs.

Key Applications

Cotton Fabric Treatment

Ideal for achieving brilliant cotton fabrics whitening, ensuring pure and bright results for various cotton textiles.

Polyester Blends Enhancement

Optimizes the appearance of polyester-cotton blends, delivering a desired level of whiteness and vibrancy through its unique fluorescent whitening agent 4BK properties.

Cellulosic & Polyamide Fibers

Widely used across cellulosic fibers and polyamide for effective brightening, crucial for a broad range of textile auxiliary applications.

Paper & Other Industries

Beyond textiles, Optical Brightener 4BK finds valuable use in paper pulp brightening and other specific industrial applications where enhanced whiteness is desired.