Fluorescent Brightener 353

Fluorescent Brightener 353 (CAS 55585-28-9), commercially known as Tinopal MSP, is a stilbene-triazine optical brightening agent that enhances perceived substrate whiteness by converting UV light into visible blue-white fluorescence.

Where is Fluorescent Brightener 353 used?

• Textile processing: applied in dyeing and finishing baths to boost whiteness on cotton, viscose and blended fabrics without altering base colour
• Paper manufacturing: incorporated into pulp slurries or surface sizing to meet brightness specifications for printing and packaging grades
• Leather finishing: used in top-coat formulations to correct yellowish tones on finished hides
• Printing and packaging: improves substrate brightness for accurate colour reproduction
• It is a water-soluble anionic compound suited to industrial whitening processes.

Commercial specifications

• Powder forms: higher active content for dosing flexibility in large-scale operations
• Technical and industrial-grade specifications with purity assays and shade strength data