Process for photochemical stabilization of polyamide and polyurethane fiber materials with metal complex compounds
AssigneeCiba-Geigy Corporation
InventorsGerhard Reinert, Gerhard Back, Helmut Huber-Emden
Life of this patent
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Abstract
A process for the photochemical stabilization of undyed and dyed polyamide or polyurethane fibre material that is characterized in that the fibre material is treated with a water soluble, organic copper, manganese or nickel complex that displays an affinity for the fibres. The polyamide or polyurethane fibre material, e.g., textile, that has been so treated retains its stretch characteristics and elasticity even after prolonged periods of illumination. In addition, in the case of dyed material, treatment with the metal complex results in a marked improvement in light-fastness.
Claims9
A process for the photochemical stabilization of undyed or dyed polyamide or polyurethane fiber material which comprises treating said material with a water-soluble copper, manganese or nickel complex of a tetradentrate bisazomethine, an acylhydrazone a semicarbazone or a thiosemicarbazone of an aromatic aldehyde or ketone, said complex containing at least one sulfo group.
A process for the photochemical stabilization of undyed or dyed polyamide material which comprises treating said material with a water soluble copper, manganese or nickel complex of the formula ##STR18## or a salt thereof,
- wherein:
- R.sub.1 is hydrogen;
- C.sub.1 -C.sub.8 alkyl which is unsubstituted or substituted by halogen, C.sub.1 -C.sub.4 -alkoxy, phenyl, carboxyl, hydroxy, cyclohexyl or mono- or dialkyl amino;
- or aryl which is unsubstituted or substituted by C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy, halogen, C.sub.2 -C.sub.5 -alkanoylamino, nitro, cyano, sulfo or mono- or dialkylamino;
- Y is alkylene of 2 to 8 carbon atoms which may be interrupted by oxygen or nitrogen;
- or arylene which is unsubstituted or substituted by C.sub.1 -C.sub.4 -alkyl or C.sub.1 -C.sub.4 -alkoxy;
- Me is copper, manganese or nickel;
- and
- n is 1, 2 or 3.
A process for the photochemical stabilization of undyed or dyed polyamide or polyurethane fiber material which comprises treating said material with a water-soluble copper, manganese or nickel complex of the formula ##STR19## or a salt thereof
- wherein:
- R.sub.1 is hydrogen;
- C.sub.1 -C.sub.8 alkyl which is unsubstituted or substituted by halogen, C.sub.1 -C.sub.4 -alkoxy, phenyl, carboxyl, hydroxy, cyclohexyl or mono- or dialkyl amino;
- or aryl which is unsubstituted or substituted by C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy, halogen, C.sub.2 -C.sub.5 -alkanoylamino, nitro, cyano, sulfo or mono- or dialkylamino;
- R.sub.2 is hydrogen;
- C.sub.1 -C.sub.8 alkyl which is unsubstituted or substituted by halogen, C.sub.1 -C.sub.4 -alkoxy, phenyl, carboxyl, hydroxy, cyclohexyl or mono- or dialkyl amino;
- or aryl which is unsubstituted or substituted by C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy, halogen, C.sub.2 -C.sub.5 -alkanoylamino, nitro, cyano, sulfo or mono- or dialkylamino;
- and
- Me is copper, manganese or nickel.
A process for the photochemical stabilization of undyded or dyed polyamide or polyurethane fiber material which comprises treating said material with a water-soluble copper, manganese or nickel complex of the formula ##STR20## or a salt thereof,
- wherein:
- R.sub.1 is hydrogen;
- C.sub.1 -C.sub.8 alkyl which is unsubstituted or substituted by halogen, C.sub.1 -C.sub.4 -alkoxy, phenyl, carboxyl, hydroxy, cyclohexyl or mono- or dialkyl amino;
- or aryl which is unsubstituted or substituted by C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy, halogen, C.sub.2 -C.sub.5 -alkanoylamino, nitro, cyano, sulfo or mono- or dialkylamino;
- X is oxygen or sulfur;
- and
- Me is copper, manganese or nickel.
Dependencies are inferred from the claim text.