Method for coloring acrylic fibers
OwnerBrian Alan Connolly, Rainer Casaretto +2inventors
InventorsBrian Alan Connolly, Rainer Casaretto, Frank Grundmann, Dieter Steffens
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Abstract
The novel process for dyeing non-cationically-modified polyacrylonitrile fibers during spinning when the fibers are in the gel state which comprises using at least one anionic dye from the group of the acid dyes, the direct dyes or the reactive dyes and provides deep dyeings having good general fastnesses.
Claims9
A process for dyeing non-cationically-modified polyacrylonitrile fibers during spinning when the fibers are in the gel state, which comprises using as dye at least one anionic dye from the group of the acid dyes, the direct dyes or the reactive dyes.
Use of anionic dyes from the group of the acid dyes, and direct dyes or reactive dyes for dyeing non-cationically-modified polyacrylonitrile fibers in the gel state.
Dependencies are inferred from the claim text.