Clariant KSN is a yellow powder, non-ionic benzoxazole derivative brightener for plastics/polyester. It has good thermal stability, excellent migration resistance in LDPE, delivers blue-violet whitening effect at low dosage, and enhances color brightness.
High whitening brightness, providing neutral to blue-violet bright shade for light-toned products.
Thermal stability fits high-temperature processing of plastics and chemical fiber polymers.
Excellent migration resistance in LDPE, avoiding post-processing precipitation or discoloration.
Flexible dosage range, adapting to whitening needs of different materials (plastics/fibers).
Compatible with multiple processing steps, usable directly or as brightening masterbatch.
Suitable for optical whitening of films, injection/compression molded plastic products.
Fits dyeing whitening of chemical fibers, bristles and colored wax hairs.
Used to improve whiteness and gloss of thermoplastic PVC and rigid PVC.
Applied in whitening of polyester fibers with uniform and long-lasting effect.
Compatible with whitening addition in polymer synthesis steps like transesterification and polycondensation.
| Parameter | Specification / Value |
|---|---|
| Appearance | Yellow powder |
| Chemical Nature | Benzoxazole derivative |
| Ionic Character | Non-ionic |
| Melting Point | 250 - 300 °C |
| Storage Stability | Unstable in humidity & sunlight |
| Water Dilutability | Insoluble in water |
| Recommended Dosage (Colored Plastics) | 20 - 300 ppm |
| Recommended Dosage (Transparent Plastics) | 5 - 20 ppm |
| Recommended Dosage (Thermoplastic PVC) | Max 100 ppm |
| Recommended Dosage (Rigid PVC) | Max 500 ppm |
| Recommended Dosage (Polyester Fiber) | 100 - 250 ppm |
| Masterbatch Addition Level | 0.5 - 20 % |
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