Methods and compositions to enhance stain resistance of carpet f

Details Methods and compositions to enhance stain resistance of carpet f Methods and compositions to enhance stain resistance of carpet f

1992-01-06

1992-09-08

Clingman, A. Lionel

Bleaching and dyeing; fluid treatment and chemical modification

Organic additive for dye composition, dye composition...

Polymeric additive

8560, 8589, 8623, 811556, 8924, 8929, C09B 6700, D06M 1541, D06M10134

Patent

active

051454874

ABSTRACT:
This invention relates to improved methods and compositions to enhance stain resistance of carpet fiber. The improved methods relate to a continuous aftertreatment for dyed carpet fabric and to two-step processes, either batch-batch, batch-continuous or continuous-continuous. The improved compositions are used in the processes to enhance stain resistance of carpet or carpet fiber and to overcome various prior drawbacks, such as, yellowing, oxidation and durability to cleaning. The sulfonated aromatic condensates are used to enhance stain resistance, and can be combined with fluorocarbon compounds for soil resistance, thiocyanates, and/or salts having divalent cations, such as magnesium sulfate. Also various dispersing agents, buffering acids and sequestering agents are disclosed.

REFERENCES:
patent: 3387913 (1968-06-01), Tigler et al.
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patent: 3652199 (1972-03-01), Leung
patent: 4592940 (1986-06-01), Blyth et al.
patent: 4619853 (1986-10-01), Blyth et al.
patent: 4680212 (1987-07-01), Blyth et al.
patent: 4780099 (1988-10-01), Greschler et al.
patent: 4879180 (1989-11-01), Blyth et al.

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