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AssigneeNippon Sanmo Sensyoku Co., Ltd.
InventorsReizo Gomibuchi, Kyoushirou Wajima
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Modified wool having improved shrink-proofing property is obtained by a two step process in which raw material wool is first immersed in a first aqueous bath containing a water-soluble organic phosphine and is then immersed in a second aqueous bath containing a modifying agent selected from epoxy compounds, ethyleneimine compounds, urea, substituted urea compounds, thiourea, substituted thiourea compounds, alkylene carbonates, unsaturated carboxylic acids, derivatives of unsaturated carboxylic acids, unsaturated nitriles, unsaturated alcohols, esters of an unsaturated alcohol, sulfonic acid salts having a vinyl group, cyanic acid salts, nonionic surfactants of a poly(alkylene oxide) type, salts of sulfates of the nonionic surfactants and silane coupling agents having a vinyl group. The treatment may also be performed by a one step process in which wool is immersed in an aqueous bath containing the above phosphine compound and a modifying agent selected from the above.
A process of treating wool for imparting shrink-proofing property thereto, comprising the steps of immersing the wool in a first aqueous bath containing a water-soluble organic phosphine to obtain a pretreated wool, and then immersing said pretreated wool in a second aqueous bath consisting of (I) at least one modifying agent selected from the group consisting of:
A process of treating wool for imparting shrink-proofing property thereto, comprising immersing the wool in an aqueous bath containing a water-soluble organic phosphine and a modifying agent selected from the group consisting of poly(3-(1-aziridinyl)propionates) of a polyhydric alcohol, N-alkyl-N',N'-ethylene urea, N-alkyl,N',N'-ethylene thiourea, allyl alcohol, propargyl alcohol, sulfonic acid salts having a vinyl group and selected from the group consisting of vinyl group-containing aliphatic sulfonic acid salts and styrene sulfonic acid salts, cyanic acid salts, poly(alkylene oxide) surfactants of the following formula:
Dependencies are inferred from the claim text.