Process for providing polyamide materials with stain resistance with sulfonated novolak resin and polymethacrylic acd
AssigneeMinnesota Mining and Manufacturing Company
InventorsMaynard H. Olson, John C. Chang, Imelda A. Muggli
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Abstract
A treated fibrous polyamide substrate having resistance to staining by acid colorants is provided. The treated substrate comprises a fibrous polyamide substrate having applied thereto (a) a partially sulfonated novolak resin and (b) polymethacrylic acid, copolymers of methacrylic acid, or combinations of said polymethacrylic acid and said copolymers of methacrylic acid.
Claims16
A treated fibrous polyamide substrate having resistance to staining by acid colorants comprising a fibrous polyamide substrate having applied thereto (a) a partially sulfonated novolak resin and (b) polymethacrylic acid, copolymers of methacrylic acid, or combinations of said polymethacrylic acid and said copolymers of methacrylic acid.
A method for imparting to fibrous polyamide materials stain resistance to acid colorants comprising contacting the fibrous polyamide materials with an aqueous treating solution comprising (a) a partially sulfonated novolak resin and (b) polymethacrylic acid, copolymers of methacrylic acid, or combinations of said polymethacrylic acid and said copolymers of methacrylic acid.
A method for imparting to fibrous polyamide materials stain resistance to acid colorants comprising contacting the fibrous polyamide materials sequentially contacting said fibrous polyamide materials with an aqueous treating solution of a partially sulfonated novolak resin and an aqueous treating solution of a polymethacrylic acid, copolymers of methacrylic acid, or combinations thereof.
An aqueous solution useful in imparting stain resistance to acid colorants to fibrous polyamide materials, the solution comprising a mixture of (a) a partially sulfonated novolak resin and (b) polymethacrylic acid, copolymers of methacrylic acid, or combinations of said polymethacrylic acid and said copolymers of methacrylic acid.
Dependencies are inferred from the claim text.