Textiles optical brightener

Optical Brighteners

Introduction of textiles optical brightener

Optical brightener brightening colors or mask yellowing by optically yield a brighter, fresher appearance. Its synonym name OBA which is also known as fluorescent whitening agent(FWA) or fluorescent brightening agent(FBA).

Baoxu chemical offers optical brightener agents in textiles as Table 1 below, Always pure powder, no reduction, and no filler.

Table 1 Optical brightener agent for textiles

Typical optical brightener for textiles is ER-I, ER-II, and 4BK. Always pure powder, no reduction, no filler.

• optical brightener ER-I is also known as fluorescent brightener 199. It’s used in whitening and brightening polyester fiber.
• optical brightener ER-II is also known as fluorescent brightener 199:1, used to whitening polyester, polyester/cotton, polyester/yarn, polyester/linen, and other blended fabrics. Both CAS number is 13001-39-3 and could be in powder or liquid form.
• optical brightener  4BK(fluorescent brightener 113) is used in whitening cotton fabric and polyester/cotton blends.

For more info and selection of optical brighteners for various applications, please check our blog.