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|CAS NO:||12768-92-2||E Value:||250|
optical brightener kcb,
optical brighteners chemistry
Optical Brightener Agent C.I.113 E=250
Chemical name Stilbene derivative
Specification Appearance: Yellow powder
Fluorescent Color: Similar to the standard sample
Whitening strength: 100± 3( compared with standard sample)
Moisture: ≤ 6%
Ionic character anionic
Treating process: 1. Exhausting whitening process:
BA: 0.05-0.3% (o. W. F. ), bath ratio: 1: 5-30, dyeing temperature: 40° C -100° C;
Na2SO4: 0-10g/l., start temperature: 30° C, heating rate: 1-2° C /min, keep the
Temperature at 50-100 for 20-40min, then lower to 50-30° C --> wash-->
Dry( 100° C ) --> setting (120° C -150° C )× 1-2 min( add proper amount
Leveling agent according to the leveling effect).
2. Padding Process:
BA: 0.5-3g/l, residue liquor ratio: 100%, one dip and nip --> dry( 100° C )
-->setting (120° C -150° C )× 1-2 min
Use: Mainly be used as brightener of cotton, linen, silk, polyamide fiber, wool and paper.
Package: It is packed in 20Kgs paper board bucket...It can be packed according to the requirement of the user.
Note: It needs to be declared that the above data is based on our present knowledge and experience; Owing to too many affecting factors, these data cannot be free from their check and test when processing and using the product.
Contact Person: Mr.Wang