Polycondensates as dyeing promoters for hydrophobic polymer...

Details Polycondensates as dyeing promoters for hydrophobic polymer... Polycondensates as dyeing promoters for hydrophobic polymer...

C - Chemistry, Metallurgy

08

L

C08L 101/00 (2006.01) C08L 67/00 (2006.01) D06M 15/507 (2006.01) D06P 1/52 (2006.01)

Patent

CA 2529609

A process for dyeing or printing an article comprising a hydrophobic polymer, wherein said polymer is brought into contact with a condensation polymer obtained by condensation of at least one poly-hydroxyl-mono-carboxylic acid, prior to or simultaneously with the treatment of said article with a color imparting compound, with the proviso that the condensation polymer is not terminated with lipophilic groups, provides dyed articles with good fastness properties.

L'invention concerne un procédé pour teindre ou imprimer un article comprenant un polymère hydrophobe, ledit procédé consistant à mettre en contact ledit polymère avec un polymère de condensation obtenu par condensation d'au moins un acide polyhydroxyle monocarboxylique, avant de traiter cet article ou pendant le traitement de ce dernier avec un composé colorant, à condition que le polymère de condensation ne soit pas terminé par des groupes lipophiles. Ce procédé permet d'obtenir des articles teints présentant une grande solidité.

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