Vat Khaki 2G (Vat Green 8) is used for dyeing cotton and silk fibers. It has good leveling properties and affinity, and is a major dye for grass green. It is also used for dyeing viscose-cotton and polyester/cotton blended fabrics. It is often blended with Vat Brown GG, BR, and Sulfur Vat Black CLN to dye various shades of brown yarns, with Vat Olive Green B to dye various shades of olive green yarns, and with Vat Olive Green B or Vat Brilliant Green FFB to dye grass green fabrics. Fabrics dyed with this product become slightly lighter in color after treatment with urea-formaldehyde or cyanoform resin. It is an important dye variety for dyeing military uniform fabrics.
1-Aminoanthracene-9,10-dione and 1,4,5,8-Tetrachloroanthracene-9,10-dionein copper and Nitrobenzene under the existence of condensation,And then cyclized with aluminum chloride anthraquinone five four imine.
1,1' : 4,1'' : 5 ,1''' : 8,1''''-Pentanthrimide-
2,2' : 3,2' : 6,2''' : 7,2''''-carbazole
is prepared
from the corresponding pentanthrimide with
aluminum chloride or with aluminum
chloride–sodium chloride , .
Properties and Applications
Olive green. Black powder. Insoluble in water, alcohol and organic solvents. The concentrated sulfuric acid is dark brown, olive green after dilution with precipitation; hydrosulfite in alkaline solution, light brown red; hydrosulfite in an acidic solution of olive color. Mainly used for dyeing cotton fiber. Applies to vat olive green b or brilliant green FPB fight with grass green, khaki, but also suitable for knitwear, yarn, cotton and polyester / cotton blended fabric dyeing. Printing less effective.
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Standard
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Ironing Fastness
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Chlorine bleach
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Light Fastness
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Mercerized
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Oxygen bleach
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Soaping
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Fading
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Stain
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ISO
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4
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5
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7
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4-5
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4
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4-5
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5
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AATCC
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5
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4-5
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7
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4-5
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4
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