Fluorescent brightener 368

Other Name:

Fluorescent Brightener KSN,Fluorescent Brightening Agent KSN, Optical Brightening Agent KSN,Fluorescent Whitening Agent KSN,OBA KSN

Optical Brightener KSN has strong light fastness and migration resistance. 

Applications:

• ‍It is widely used for polyester fiber, polyamide, polypropylene fine polymer fibers, high-quality engineering plastics, etc. 
• KSN is chemically stable and has a good affinity with common plastics. So it can be added in any production stage of blowing film, drawing, injection, molding, extrusion, etc.‍

Technical Specifications

• ‍C.I. No.: Fluorescent brightener 368
• Physical Form: bright yellow crystalline powder
• Purity(%):>99.0
• Melting Point(℃): >295°C
• Volatile content:(%):0.5Max
• Ash content(%):0.1Max
• Appearance: Yellowish green crystal powder
• Shade/Tone: Reddish.
• Melting point: 269-271℃
• Volatile ≤0.5%
• Ash ≤0.5%
• Max Absorption Wavelength 370nm (in ethanol)

• Max. Emission Wavelength 437nm(in ethanol)‍

Directions for use and dosage:

• ‍Dosage in plastics 0.01-0.03%, or adjust according to user’s need.
• Due to the dosage amount is small, please mix thoroughly for the best effect.
• When using any UV absorb additive, the dosage of KSN should be adjusted.‍