Laundry — Process Challenge

Optical Brighteners (OBA/FWA) for Laundry Whiteness

Design pairs optical brighteners with chelants so fluorescent whitening agents deposit on fabric without metal-ion quenching
Why It Matters
Design pairs optical brighteners with chelants so fluorescent whitening agents deposit on fabric without metal-ion quenching
Solution Approach

Design pairs optical brighteners with chelants so fluorescent whitening agents deposit on fabric without metal-ion quenching RawSource supplies the base chemicals that go into these programs. We can help with product selection, grade matching, and sourcing from multiple origins for supply security.

Typical Formulation Workflow
1
Application & Soil Assessment
Define the cleaning task, surfaces, soils, and water hardness, plus the safety and regulatory profile for the use environment.
2
Surfactant & Builder Selection
Match surfactants, builders, solvents, chelants, acids or alkalis, and preservatives to the soil, surface compatibility, and label claims.
3
Formulation & Use-Dilution Trial
Optimize the actives ratio and use dilution, checking foam, clarity, stability, and performance at the in-use concentration.
4
Performance & Stability Validation
Confirm cleaning efficacy, storage and freeze-thaw stability, and packaging compatibility before scale-up.
Recommended Chemistries (4)
Bis--stilbene Disulfonic Derivative
CAS 16090-02-1
Specialty Additives
Color / Pigmentation
Stilbene fluorescent whitening agent: absorbs UV and re-emits blue light, masking yellowing so white fabric reads brighter
Melting Point: >270 °C   Solubility: In water, 5 mg/l at 25 °C   Flash Point: not available
Full Details
Fluorescent Brightener BA-L
CAS 12768-92-2
Surfactants
Cleaning / Degreasing
Detergent-grade FWA that substantively deposits on cotton for visible whiteness gain under daylight UV
Full Details
Disodium Distyryl Biphenyl Disulfonate
CAS 27344-41-8
Specialty Additives
Color / Pigmentation
Distyrylbiphenyl brightener, the standard liquid-detergent FWA for blue-white shading
Physical Description: Yellow odorless powder; 29-31% Aqueous solution…
Full Details
Tetrasodium EDTA (EDTA Na4)
CAS 64-02-8
Amines & Amides
Broad-spectrum chelant binding Ca, Mg, Fe, Cu across wide pH range
Sequesters Fe/Cu/Mn that otherwise quench brightener fluorescence and graying, protecting whiteness
Melting Point: 300 °C (decomposes)   Density: 6.9 lb/gal /Apparent density/   Solubility: Slightly soluble in ethanol
Full Details

Need help selecting the right chemistry?

Our team can help with grade selection, dosage guidance, and multi-origin sourcing.

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