Vat Blue 20 | 116-71-2
International Equivalents:
| Dark blue BO | Violanthrone |
| Dibenzanthrone | C.I.Vat Blue 20 |
| Pigment Blue 65 | Vat Dark Blue BO |
Product physical properties:
| Product Name |
Vat Blue 20 |
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| Specification |
Value |
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| Appearance |
Blue-black Powder |
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| density |
1.1055 (rough estimate) |
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|
General properties |
Dyeing method |
KN |
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| Dyeing Depth (g/L) |
40 |
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| Light(xenon) |
6-7 |
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| Water spotting(immediately) |
3-4R |
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| Level-dyeing property |
Moderate |
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|
Light&Perspiration |
Alkalinity |
4-5 |
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| Acidity |
4-5 |
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|
Fastness properties |
Washing |
CH |
3-4 |
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|
CO |
4-5 |
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|
VI |
4-5 |
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|
Perspiration |
Acidity |
CH |
4-5 |
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|
CO |
4-5 |
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|
WO |
4-5 |
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|
Alkalinity |
CH |
4-5 |
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|
CO |
4-5 |
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|
WO |
4-5 |
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|
Rubbing |
Dry |
4-5 |
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|
Wet |
3-4 |
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| Hot pressing |
200℃ |
CH |
3 |
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|
Hypochlorite |
CH |
4-5 |
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Superiority:
Blue-black Powder. Insoluble in water and ethanol, slightly soluble in acetone, chloroform, o-chlorophenol, pyridine, toluene, soluble in tetralin and xylene (red with red fluorescent solution). It appears purple-black in concentrated sulfuric acid, and produces purple-black precipitate after dilution. It appears dark purple in alkaline solution of insurance Powder and dark red in acidic solution. Used for dyeing cotton fibers, with Good affinity, fast coloring and medium level dyeing properties. It is less used for printing and more used for color matching. It can be used for dyeing silk, viscose fiber, viscose cotton, and viscose cotton. It can also be used for hot-melt dyeing of polyester-cotton blended fabrics and disperse dyes in the same bath. It can also be used to prepare organic pigments.
Application:
Vat blue 20 is used in the dyeing and printing of cotton fabrics.
Package: 25 kgs/bag or as you request.
Storage: Store at a ventilated, dry place.
Execution Standards: International Standard.
