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Optical brighteners, optical brightening agents (OBAs), fluorescent brightening agents (FBAs), or fluorescent whitening agents (FWAs), are added to Paper/Fabrics/Detergent/Plastic etc to reduce yellowing , improve whiteness and enhance the brightness of the substrate.
Optical brighteners function absorbs in the UV portion of the spectrum and re-emit it in the blue portion of the visible spectrum. A white surface treated with an optical brightener can emit more visible light making it appear whiter and brighter.
End uses of optical brighteners include:
Detergent whitener
Paper brightening
Fiber whitening
Textile whitening
Color-correcting or brightening additive in advanced cosmetic formulas (shampoos, conditioners, eye makeup)
Types of optical brighteners :
Brightening agents can be categorised into three main types.
Di-sulfo
Tetra-sulfo
Hexa-sulfo
Our Offering
Shreeji Dyechem Industry offers a full range of products for in Powder/ Liquid, Tinted and Non tinted.
We offer a complete range of OBA, Di-sufo, Tetra-sulpho and hexa-sulpho products. On the application side this means we have products for any pH application as well as all kinds of processes.
Special requirements like high wash fastness etc. can be achieved with di-sulpho OBA, while extremely low pH requirements can be achieved with Hexa-sulpho OBA. Tetra-sulpho OBA, are the most versatile can be applied for a range of applications and in a variety of processes.
Our Product certification:
Our products are
GOTS approved
REACH – registered.
ZDHC registered
Oeko Tex-100 Compliant
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