Direct Congo Red 4B / Direct Red 28

Direct Congo Red 4B

  • C.I.Direct Red 28

  • C.I.22120

  • CAS: 573-58-0

  • Standard Strength: 100%

  • Molecular Formula: C32H22N6Na2O6S2

  • Formula Weight: 696.67

Physical and Chemical Properties

 

Appearance: Tan powder

Shade: Similar to standard

Strength: 100%

Insolubility: ¡Ü2%

Moisture: ¡Ü3%

Fineness(60 Mesh Sieve Residue):¡Ü5%


 

Fastness

 

Light

Washing

Water

Crocking

Perspiration

Ironing

 

 

 

 

1-2

Bleaching

Staining

Bleaching

Staining

Dry

Wet

Bleaching

Staining

3-4

2

3-4

2

3-4

2-3

2-3

4

4-5


 

Application

 

Dyeing for Cotton and Viscose fiber  

Coloring for Wool, SilkPaper and Biological

 


 

Packing

 

Packed in 25kgs Fiber drum and Carton


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