Product Name: Fluorescent Whitening Agent DCB
C.I. No.: FBA121
Physical Form: Appearance:brownish yellow powder
Properties:
Hue:bluish purple
Solubility:insoluble in cold water;a yellowish white suspending liquid can be obtained by dissolve it in the water having a temperature of 40; soluble in organic solvents such as ethanol,glycol and ethyl ether.
Ionicity:non-ionic
Structure:a compound of pyrazoline type
Applications:
Whitening Agent DCB is mainly used for whitening and brightening polyacrylonitrile fiber and polyacrylonitrile-containing fabrics.It is similar to Blankophor DCB made in foreign country.
Directions for use and dosage:
The following is an example of formula for reference only: Weight of acrylonitrile fabric:2g;dosage of DCB 1% O.W.F.;dosage of 100% acetate acid:3% O.W.F.;dosage of anhydrous sodium sulfate:5% O.W.F.;dosage of distilled water based on bath ratio of 1:100;adjust the PH value to 3.5-5;dye at 100 for 60 minutes,and normally dry at 60.