Optical brightener for plastics

Introduction of optical brightener for plastics

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

Typical optical brightener for plastics includes FP-127, KCB, KSN, OB, OB-1, as Table 1 below. Always pure powder, no reduction, and no filler.

Table 1 Optical brightener for plastic

Name	Equivalent to	CAS No.	CI Number
BX OBA OB	Uvitex/Tinopal OB	7128-64-5	FBA 184
BX OBA OB-1	Eastobrite OB-1	1533-45-5	FBA 393
BX OBA KCB	Hostalux KCB	5089-22-5	FBA 367
BX OBA KSB	Telalux KSB	7128-54-5	FBA 390
BX OBA KSN	Hostalux KSN	5242-49-9	FBA 368

• optical brightener FP-127(fluorescent brightener 378). It’s suited for all kinds of PVC products, is highly effective, and is environment-friendly.
• optical brightener KCB (fluorescent brightener 376). It’s used to replace Clariant Telalux KCB. KCB is especially suited for EVA products, highly effective and environment-friendly.
• optical brightener KSN (fluorescent brightener 368). It’s used to replace Clariant Telalux KSN. KSN is especially suited for thermoplastics and engineering plastics with good weather resistance, highly effective, and also environment-friendly.
• optical brightener OB (fluorescent brightener 184). It’s used to replace Ciba Uvitex OB and BASF Tinopal OB. OB is suited for all kinds of plastics with good light transmittance, and excellent weather resistance, also environment-friendly.
• optical brightener OB-1(fluorescent brightener 393). It’s used to replace Eastman Eastobrite OB-1. OB-1 is suited for all kinds of plastics, effective, immigrant resistant, and environment-friendly.

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

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