Claims
- 1. In a process for dyeing carpet containing nylon pile fibers coated with stain blocker, wherein said stain blocker is a polymeric condensation product containing --SO.sub.3 X groups where X is hydrogen or a cation and wherein the carpet is treated with an aqueous solution of an acid dye under conditions of time and temperature sufficient to provide dyed carpet of a selected shade, the improvement comprising adding a sufficient amount of said stain blocker to said aqueous solution to provide carpet having a dye absorption value at 25.degree. C. of substantially zero.
- 2. The process of claim 1 wherein said amount is in the range of from 0.1% to 3.0% by weight, based on the weight of said fibers.
- 3. The process of claim 1 wherein said nylon fibers are nylon 66 fibers.
CROSS-REFERECE TO RELATED APPLICATION
This is a continuation of application Ser. No. 296,301, filed Jan. 9, 1989, now abandoned, which is a continuatin of application Ser. No. 084,777, filed Aug. 13, 1987, now abandoned which is a continuation-in-part of copending application Ser. No. 059,714, filed June 8, 1987 and now abandoned, which in turn is a continuation of application Ser. No. 914,507, filed Oct. 2, 1986, and now U.S. Pat. No. 4,680,212, which in turn is a continuation of application Ser. No. 834,804, filed Mar. 6, 1986, and now abandoned, which in turn is a continuation-in-part of application Ser. No. 643,606, filed Aug. 23, 1984, and now abandoned, which in turn is a continuation of application Ser. No. 562,370, filed Dec. 16, 1983, and now abandoned.
US Referenced Citations (2)
Number |
Name |
Date |
Kind |
4030880 |
Holfeld et al. |
Jun 1977 |
|
4619853 |
Blyth et al. |
Oct 1986 |
|
Foreign Referenced Citations (1)
Number |
Date |
Country |
1369586 |
Oct 1974 |
GBX |
Continuations (5)
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Number |
Date |
Country |
Parent |
296301 |
Jan 1989 |
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Parent |
84777 |
Aug 1987 |
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Parent |
914507 |
Oct 1986 |
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Parent |
834804 |
Mar 1986 |
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Parent |
562370 |
Dec 1983 |
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Continuation in Parts (2)
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Number |
Date |
Country |
Parent |
59714 |
Jun 1987 |
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Parent |
643606 |
Aug 1984 |
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