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Specifications
| Appearance: | White to greenish-yellow crystalline powder |
| Assay: | 98.5% min |
| C.I: | 378 |
| Fineness: | 200 mesh min |
| Volatile matter: | 0.5% max |
| Ash: | 0.5% max |
Applications
1. Textile Industry
Applied in fabric finishing and processing to improve brightness and whiteness of cotton, polyester, nylon, and blends.
Enhances fabric appearance by neutralizing yellowish tints and providing a crisp white look.
2. Paper Industry
Used in paper manufacturing to increase the brightness and whiteness of paper and paperboard products.
Improves visual quality without chemical bleaching.
3. Detergents and Cleaning Products
Incorporated in laundry detergents, fabric softeners, and cleaning agents to enhance fabric brightness after washing.
Provides a perceived higher cleaning performance by optical brightening.
4. Plastics
Added to plastic resins and films to improve whiteness and color consistency.
Enhances visual appeal of plastic consumer goods and packaging.
5. Coatings and Paints
Used in paints, coatings, and inks to enhance whiteness and brightness.
Benefits
Effective Whitening: Provides bright, clean white appearance by fluorescence.
Improves Visual Appeal: Neutralizes yellow tones for enhanced aesthetic quality.
Broad Compatibility: Suitable for textiles, paper, plastics, detergents, and coatings.
Stable Under Use Conditions: Maintains performance under exposure to light and heat.
Low Toxicity: Safe for use in consumer products within regulated concentrations.
Conclusion
Fluorescent Brightener 378 (CAS 40470-68-6) is a versatile optical brightener widely used in textiles, paper, plastics, detergents, and coatings. Its ability to absorb UV light and emit visible blue light enhances the whiteness and brightness of products, improving their aesthetic and market value. Its chemical stability and safety profile make it a trusted additive in many industrial and consumer applications.
