Optical Brightener 121 unique structure enables it to absorb ultraviolet light and emit visible blue light, enhancing the whiteness and brightness of materials.
This compound is particularly effective in improving the visual appeal of fabrics, synthetic fibers, and plastic products. Commonly supplied as a white to light yellow crystalline powder, Fluorescent Brightener 121 is valued for its efficiency and stability.
It is an essential additive for applications requiring enhanced brightness and whiteness in industrial and consumer products.
Fluorescent Brightener DCB,Fluorescent Brightening Agent DCB, Optical Brightening Agent DCB,Fluorescent Whitening Agent DCB,OBA DCB
Optical Brightener 121 is a versatile optical brightening agent widely used in textiles, plastics, coatings, and detergents.
C.I. No.: Fluorescent brightener 121
Physical Form: Appearance:brownish yellow powder
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
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.
