Claims
- 1. Polyamide fibers dyed with a compound of the formula ##STR52## wherein A.sub.1 is hydrogen or methoxy,
- A.sub.2, B.sub.1 and B.sub.2 are independently hydrogen, methyl or methoxy, and D--SO.sub.3 M is
- 1-hydroxy-4-sulfo-2-naphthyl,
- 2-hydroxy-6-sulfo-1-naphthyl,
- 2-amino-6-sulfo-1-naphthyl, or
- 2-amino-8-hydroxy -6-sulfo-1-naphthyl,
- where M is hydrogen, alkali metal or ammonium, provided that at least one of A.sub.1, A.sub.2, B.sub.1 and B.sub.2 is methoxy, and no more than one of A.sub.2, B.sub.1 and B.sub.2 is methyl, and further provided that when one of A.sub.2, B.sub.1 and B.sub.2 is methyl, that said methyl be para to a methoxy group.
Parent Case Info
This is a division of application Ser. No. 693,593, now U.S. Pat. No. 4,143,035 filed on June 7, 1976, which is a continuation of application Ser. No. 123,443, filed Mar. 11, 1971 (now abandoned).
US Referenced Citations (5)
Foreign Referenced Citations (1)
Number |
Date |
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1511684 |
May 1978 |
GBX |
Divisions (1)
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Date |
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693593 |
Jun 1976 |
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Continuations (2)
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489865 |
Jul 1974 |
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123443 |
Mar 1971 |
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