Detergents & Care
Optical Bluing in Spray-Dried Detergents and Laundry Powders
Published:
2026-04-05
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Reading time:
4 min read
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By RS Pigments Applications Engineering
How ultramarine blue particles counteract textile yellowing across repeated wash cycles without staining synthetic fibers.
Cellulose and synthetic textiles gradually acquire a yellow cast over time. Ultramarine blue particles reflect reddish-blue light that optically neutralizes yellowness, restoring fabric whiteness.
The fine particulate nature of RS Pigments laundry grades ensures rapid dispersion in water without staining or agglomeration.
Key Technical Takeaways
- Ultramarine Blue is chemically non-nucleating, eliminating shrinkage and warping in HDPE and PP injection moldings.
- Thermal stability up to 350°C in specialized heat-resistant grades and NANOX compounding platforms.
- Total resistance to alkaline environments (5/5 rating), ideal for masonry coatings, concrete, and laundry powders.
Need Technical Testing Samples for Your Lab?
RS Pigments supplies 1kg and 5kg trial sample packs with certified CoA, complete particle size distribution, and FPV analysis.