Process for pad-dyeing and printing fabrics made of cellulose and/or regenerated modified cellulose and optionally polyester fibers
AssigneeHoechst Aktiengesellschaft
InventorsErich Feess, Friedrich Reinhardt
Life of this patent
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Abstract
Synthetic polymers having carboxy groups are useful thickeners for printing pastes or pad-dyeing liquors containing disperse dyestuffs for the coloring of cellulose fibers which may be regenerated or their mixtures or mixtures of such fibers with polyester fibers.
Claims14
In a process for printing or pad-dyeing fabrics consisting of fibers of cellulose or regenerated cellulose or mixtures of these fibers with an aqueous composition containing a disperse dyestuff, the improvement which comprises printing or pad-dyeing said fabric with a printing paste or pad-dyeing liquor containing as a thickening agent a synthetic polymer which is an addition polymer containing recurring units of at least one low molecular weight ethylenically unsaturated mono- or dicarboxylic acid, said polymer having free carboxy groups.
In a process for printing or pad-dyeing a fabric made from a fiber blend containing at least 30% by weight of fibers consisting of cellulose, regenerated cellulose or mixtures of such fibers with an aqueous composition containing disperse dyestuffs, the improvement which comprises printing or pad-dyeing said fabric with a printing paste or pad-dyeing liquor containing as a thickening agent a synthetic polymer which is an addition polymer containing recurring units of at least one low molecular weight ethylenically unsaturated mono- or dicarboxylic acid, said polymer having free carboxy groups.
In a process for printing or pad-dyeing a fabric made of a fiber blend containing at least 30% by weight of fibers consisting of cellulose, regenerated cellulose or mixtures of such fibers and the remainder of said blend being synthetic fibers with aqueous compositions containing disperse dyestuffs, the improvement which comprises printing or pad-dyeing said fabric with a printing paste or pad-dyeing liquor containing as a thickening agent a synthetic polymer which is an addition polymer containing recurring units of at least one low molecular weight ethylenically unsaturated mono- or dicarboxylic acid, said polymer having free carboxy groups.
Dependencies are inferred from the claim text.