Product Name |
Direct Black D-HR |
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C.I.No. |
Direct Black 173 |
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CAS No. |
79057-88-8 |
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EINECS |
- |
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Molecular formula: |
C44H33N11O13S3.3Na |
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Molecular weight |
1085.93921 |
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Synonyms |
2-Naphthalenesulfonicacid,6-[(4-amino-2-hydroxyphenyl)azo]-3-[[4-[[4-[[7-[(4-amino-2-hydroxyphenyl;3-2-NAPHTHALENESULFONICACID,6-[(4-AMINO-2-HYDROXYPHENYL)AZO]-3-[[4-[[7-[(4-AMIN;
O-2-HYDROXYPHENYL)AZO]-1-HYDROXY-3-SULFO-2-NAPHTHALENYL]AZO]PHENYL]AMINO]-3-SUL; FOPHENYL]AZO]-4-HYDROXY-TRISODIUMSALT; 2-NAPHTHALENESULFONICACID,6-[(4-AMINO-2-HYDROXYPHENYL)AZO]-3-[[4-[[4-[[7-[(4-AMINO-2-HYDROXYPHENYL)AZO]-1-HYDROXY-3-SULFO-2-NAPHTHALENYL]AZO]PHENYL]AMINO]-3-SULFOPHENYL]AZO]-4-HYDROXY-,TRISODIUMSALT;
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Chemical Property |
Black powder.Soluble in water. Good high temperature resistance. | ||
Application |
It is suitable for the dispersion of polyester viscose medium and long fibers and direct acid high temperature dyeing in one bath. It is especially suitable for one bath one-step dyeing. It is the main dye of black spectrum and can be used for color matching with dyes such as direct yellow D-3rnl and direct ruby D-bl. |
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Fastness |
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Depth % |
4.5 |
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Light |
4 |
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1/1 Dyeing depth |
40°C washing |
CH |
4 |
CO |
4-5 |
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V |
4-5 |
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Perspiration |
CH |
4 |
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CO |
4-5 |
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V |
4-5 |
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Rubbing |
D |
4-5 |
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W |
3 |