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Pigment

Optical Brightener KCB
Optical Brightener KCB

Structure type: naphthyl benzoxazole type

 

Chemical name: 1,4-2 (benzoxazolyl-2-yl) naphthalene

 

Molecular formula: C24H14O2N2

 

C.I.NO:367

 

CAS No:5089-22-5

 

Molecular weight: 362

 

Technical indicators:

 

Appearance: yellow green crystalline powder

 

Melting point: 210~212 ℃

 

Fluorescent tone: blue violet light

 

Fineness: ≥ 100 meshes

 

Ultraviolet absorption wavelength: 370nm

 

Performance and use: This product has excellent light resistance and heat resistance, and does not react with foaming agent, cross-linking agent, etc.

 

It is mainly used for whitening fiber and plastic products, widely used in plastic film, injection molding materials, etc. It has excellent effects on polyolefin, PVC, foamed PVC, TPR, EVA, PU foam, synthetic rubber, etc. It can also be used for whitening paint and natural paint.

 

Recommended dosage: add 5~50g KCB whitening agent for every 100kg of material.

 

Packaging and storage: Packed in cardboard barrels lined with plastic bags, with a net weight of 25kg/barrel, or packed according to customer needs, and stored in a cool, dry place away from light.