Optical Brightener OB-1 for PVC, PP, PE

Short Description:

Optical brightener OB-1 is an efficient optical brightener for polyester fiber, and it is widely used in ABS, PS, HIPS, PC, PP, PE, EVA, rigid PVC and other plastics. It has the characteristics of excellent whitening effect, excellent thermal stability etc。

Product Detail

Product Tags


Appearance: Yellowish green powder

Assay: 98.5% min

Melting Point: 357~361°C

Volatiles Content: 0.5% max

Ash content: 0.5% max


1. Suitable for polyester fiber (PSF), nylon fiber and chemical fiber whitening.

2. Applicable to PP, PVC, ABS, PA, PS, PC, PBT, PET plastic whitening brightening, with excellent whitening effect.

3. Suitable for whitening agent concentrated masterbatch added (such as: LDPE color concentrate)


1. polyester fiber 75-300g. (75—300ppm)

2. Rigid PVC ,PP, ABS, Nylon, PC 20-50g.(20—50ppm)

Whitening concentrated masterbatch 5-7kg.(0.5—0.7%)

Package and Storage

1. 25kg drums

2. Stored in a cool and ventilated place.

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