Claims
- 1. A dyed nylon carpet fiber characterized in being coated with a sufficient amount of a sulfonated condensation product containing --SO.sub.3 X radicals, where X is hydrogen or a cation, such that when 64 ounces (1892.5 ml) of an aqueous solution of cherry flavored soft drink premix containing 0.054 grams per liter of Red Dye No. 40 is poured onto a carpet having a pile consisting of said fibers from a height of one meter and left overnight followed by washing of said pile for a removal of excess solution therefrom, no visual evidence of said Red Dye No. 40 remains on said pile.
- 2. The dyed carpet fiber of claim 1 wherein said nylon is nylon 6.
- 3. The dyed carpet fiber of claim 1 wherein said condensation product is a sulfonated phenol-formaldehyde condensation product.
- 4. The dye carpet fiber of claim 1 wherein said sulfonated phenol-formaldehyde condensation product of phenol sulfonic acid with dihydroxy diphenylsulfone and formaldehyde.
- 5. The dyed carpet fiber of claim 1 wherein said condensation product is a condensation product of a naphthalene monsulfonic acid with dihydroxy diphenylsulfone and formaldehyde.
Parent Case Info
CROSS-REFERENCE TO RELATED APPLICATIONS
This application is a division of copending application Ser. No. 180,589, filed Apr. 7, 1988, which in turn is a continuation of application Ser. No. 59,714, filed June 6, 1987 and now abandoned, which in turn is a continuation of application Ser. No. 914,507, filed Oct. 2, 1986, now U.S. Pat. 4,680,212 which in turn is a continuation of application Ser. No. 834,804, filed Mar. 6, 1986, and now abandoned. Application Ser. No. 834,804 is a continuation-in-part of application Ser. No. 643,606, filed Aug. 23, 1984, and now abandoned. Application Ser. No. 643,606 is a continuation of application Ser. No. 562,370, filed Dec. 16, 1983, and now abandoned.
US Referenced Citations (18)
Foreign Referenced Citations (2)
Number |
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1062949 |
Apr 1954 |
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1369586 |
Oct 1974 |
GBX |
Divisions (1)
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180589 |
Apr 1988 |
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Continuations (3)
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914507 |
Oct 1986 |
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834804 |
Mar 1986 |
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Parent |
562370 |
Dec 1983 |
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Continuation in Parts (1)
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643606 |
Aug 1984 |
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