Abstract:
The present invention relates to new azo dyes, a process for their preparation, and their use for dyeing or printing fibrous materials, to produce materials with brownish shades.
Abstract:
The present invention provides azo dyes of formula (1) where Hal, M and Y are each as defined in claim 1, processes for their preparation and their use.
Abstract:
An improved process for producing coloured natural or synthetic substrates involves the following steps: a) application of a reactive coupling component to the substrate; b) fixation of the coupling component on the substrate by formation of a chemical bond; c) removal of non-fixed and hydrolysed coupling component; d) reaction of the fixed reaction component with a diazonium salt suitable for azo dye formation; e) removal of excess diazonium component.
Abstract:
An improved process for producing coloured natural or synthetic substrates involves the following steps: a) application of a reactive coupling component to the substrate; b) fixation of the coupling component on the substrate by formation of a chemical bond; c) removal of non-fixed and hydrolysed coupling component; d) reaction of the fixed reaction component with a diazonium salt suitable for azo dye formation and containing a reactive group; e) removal of excess diazonium component.
Abstract:
The present invention provides azo dyes of formula (1) where Hal, M and Y are each as defined in claim 1, processes for their preparation and their use.
Abstract:
Die vorliegende Erfindung betrifft einen gefärbten und/oder bedruckten Vliesstoff aus ungesplitteten und/oder zumindest teilweise gesplitteten Mikrofasern und/oder Mikrofilamenten aus synthetischen Polymeren enthaltend wenigstens eine Polyesterkomponente und wenigstens eine Polyamidkomponente und gegebenenfalls wenigstens eine Polyurethankomponente, der mit wenigstens einem auf dem Vliesstoff erzeugten Azofarbstoff gefärbt und/oder bedruckt worden ist sowie ein Verfahren zu dessen Färbung und/oder Bedruckung.