Stain resistant nylon carpets

Stock material or miscellaneous articles – Pile or nap type surface or component – With coating – impregnation – or bond

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428 97, 428395, B32B 2734

Patent

active

048392120

ABSTRACT:
Nylon carpet fibers are provided which resist staining by acid dye colorants at room temperature, yet are dyeable at elevated temperatures with acid dyes without losing their resistance to acid dye colorants at room temperature. The fibers are characterized by having a coating on the surface thereof comprising one or more selected compounds (stain blockers). Carpets comprising the fibers resist staining when exposed for long periods of time to spills containing acid dye colorants. By also including a fluorochemical in the coating, the carpets can resist such staining even after being subjected to heavy human trafficking.

REFERENCES:
patent: 3118723 (1964-01-01), Harding
patent: 3178309 (1965-04-01), Harding
patent: 3322488 (1967-05-01), Freeman
patent: 3663157 (1972-05-01), Gilgien
patent: 3765839 (1973-10-01), Mueller et al.
patent: 3849162 (1974-11-01), Mueller et al.
patent: 4030880 (1977-06-01), Holfeld
patent: 4192754 (1980-03-01), Marshall et al.
patent: 4295852 (1981-10-01), Walz
patent: 4302202 (1981-11-01), Summer et al.
patent: 4325890 (1982-04-01), Reitz et al.
patent: 4501591 (1985-02-01), Ucci
patent: 4592940 (1986-06-01), Blyth et al.
"The Monsanto Ultron.RTM. 3D Technical Dyeing Manual", p. 20. This manual was distributed by Monsanto to its carpet fiber customers sometime during Oct. or Nov. of 1983.

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