D - Textiles – Paper – 06 – P
Patent
D - Textiles, Paper
06
P
D06P 1/90 (2006.01) C09B 67/44 (2006.01) D06P 1/642 (2006.01) D06P 1/649 (2006.01) D06P 1/651 (2006.01) D06P 3/24 (2006.01) D06P 5/20 (2006.01)
Patent
CA 2053074
A method for dyeing fibrous material is provided. The method includes contacting a fibrous material with a mixture of a carrier and a dye soluble or dispersed in the carrier. The improvement comprises the use, as the carrier, of a mixture comprising N-cyclohexyl-2-pyrrolidone and an alkyl or aryl benzoate. The carrier system of the present can be utilized advantageously to dye difficult to dye fibrous material such as aromatic polyamides including Kevlar~ fibers and blends thereof with other fibers.
Méthode de coloration pour matière fibreuse. La méthode consiste à mettre en contact une matière fibreuse avec un mélange d'un véhicule et d'un colorant soluble ou dispersé dans le véhicule. La méthode comprend l'utilisation, comme véhicule, d'un mélange renfermant la N-cyclohexyl-2-pyrrolidone et un benzoate d'alkyle ou d'aryle. Le véhicule de l'invention peut servir avantageusement pour colorer des matières fibreuses qu'il est difficile de colorier, notamment les polyamides aromatiques, comme les fibres Kevlar et des mélanges de celles-ci avec d'autres fibres.
Sim & Mcburney
Springs Industries Inc.
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