Claims
- 1. Polyester fiber dyed with a disazo disperse dyestuff, free from --SO.sub.3 H groups impartingg solubility in water, and having the formula ##STR80## wherein Z is --O-- or --NH-;
- R.sub.1 and R.sub.2 each represent methyl or methoxy; and
- D.sub.1 and D.sub.2 each is a group of the formula ##STR81## wherein a is hydrogen, cyano, chloro, bromo, methyl, trifluoromethyl, carboxymethoxy, methylsulfonyl, nitro, methoxy, ethoxy, sulfonic acid amide, N-C.sub.1-3 alkyl sulfonic acid amide, N-isopropyloxypropyl sulfonic acid amide or N,N-di-C.sub.1-2 alkylsulfonic acid amide; b is hydrogen, bromo or chloro; c' is C.sub.1-2 -alkylcarbonyl, C.sub.1-2 -alkylaminocarbonyl, nitro, cyano C.sub.1-2 - alkylsulfonyl, carbo-C.sub.1-2 alkoxy, carbocyclohexyloxy, .beta.-chloroethylaminosulfonyl, sulfonic acid amide, N-C.sub.1-3 alkyl sulfonic acid amide, N-isopropyloxypropyl sulfonic acid amide or N,N-di-C.sub.1-2 -alkyl sulfonic acid amide.
- 2. Polyester fiber according to claim 1, wherein a dyestuff is used wherein c' is nitro, cyano, C.sub.1 -C.sub.2 -alkylsulphonyl, C.sub.1 -C.sub.2 -alkylaminosulphonyl, di-(C.sub.1 -C.sub.2 -alkyl)aminosulphonyl, C.sub.1 -C.sub.2 -alkyloxycarbonyl or C.sub.1 -C.sub.2 -alkylcarbonyl.
- 3. Polyester fiber according to claim 1 which is dyed with a dyestuff wherein a is hydrogen, chlorine, bromine, methyl, methoxy, nitro, cyano, carbo-C.sub.1 -C.sub.2 -alkoxy or methylsulphonyl, b is hydrogen, methyl, bromine, chlorine, cyano or trifluoromethyl and c' is nitro, cyano, carbo-C.sub.1-2 alkoxy or methylsulphonyl.
- 4. The composition according to claim 1 wherein the polyester fibre is selected from the group consisting of the polyester of terephthalic acid and ethylene glycol; the polyester of terephthalic acid and 1,4-dimethylolcyclohexane; and the polyester copolymer of terephthalic and isophthalic acid and ethylene glycol.
- 5. Polyester fiber which is dyed with a dyestuff of the formula ##STR82##
Priority Claims (1)
Number |
Date |
Country |
Kind |
6112/72 |
Apr 1972 |
CH |
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CROSS-REFERENCE TO RELATED APPLICATION
This application is a continuation-in-part of application Ser. No. 191,535, filed Oct. 21, 1971, now abandoned; application Ser. No. 191,535 is in turn a continuation-in-part of application Ser. No. 816,394, filed Apr. 15, 1969; abandoned.
US Referenced Citations (3)
Number |
Name |
Date |
Kind |
2936306 |
Schmid et al. |
May 1960 |
|
3124566 |
Jung et al. |
Mar 1964 |
|
3325468 |
Jung et al. |
Jun 1967 |
|
Foreign Referenced Citations (3)
Number |
Date |
Country |
885,851 |
Jun 1943 |
FR |
264,287 |
Sep 1913 |
DD |
393,592 |
Nov 1965 |
CH |
Continuation in Parts (2)
|
Number |
Date |
Country |
Parent |
191535 |
Oct 1971 |
|
Parent |
816394 |
Apr 1969 |
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