Ciba Specialty Chemicals Corporation

Bernhard Müller

Athanassios Tzikas

Georg Roentgen

Hans Reichert

The present invention relates to a method of printing a substrate, comprising (a) printing onto the substrate at least one time temperature indicator with chromic properties based on an azo coupling reaction between a capped diazonium component and a coupling component.

Method of printing a time-temperature indicator based on azo coupling reactions onto a susbtrate

Reactive dyes of formula (1) wherein Q, Q, Qand Qare each independently of the others hydrogen or unsubstituted or substituted C&#x2013;Calkyl, A is the radical of a monoazo, polyazo, metal complex azo, anthraquinone, phthalocyanine, formazan or dioxazine chromophore, D is the radical of a diazo component, of the benzene or naphthalene series, X is halogen, 3-carboxpyridin-1-yl, 3-carbamoylpyridin-1-yl, hydroxy, C&#x2013;Calkoxy unsubstituted or substituted in the alkyl moiety, phenoxy unsubstituted or substituted in the phenyl moiety, C&#x2013;Calkylthio unsubstituted or substituted in the alkyl moiety, unsubstituted or substituted amino, or an N-heterocycle which may or may not contain further hetero atoms, and Y is vinyl or a radical &#x2014;CH&#x2014;CH&#x2014;U and U is a group removable under alkaline conditions, are suitable for dyeing cellulosic or amide-group-containing fibre materials.

Fibre-reactive dyes, their preparation and their use

Reactive dyes of formula (I), wherein A is the radical of a monoazo, polyazo, metal complex azo, anthraquinone, phthalocyanine, formazan or dioxazine chromophore, Q, and Qare each independently of the other hydrogen or unsubstituted or substituted C&#x2013;Calkyl, (Q)denotes n substituents selected from the group C&#x2013;Calkyl, C&#x2013;Calkoxy, halogen and sulfo, X is halogen, 3-carboxypyridin-1-yl, 3-carbamoylpyridin-1-yl, hydroxy, C&#x2013;Calkoxy unsubstituted or substituted in the alkyl moiety, phenoxy unsubstituted or substituted in the phenyl moiety, C&#x2013;Calkylthio unsubstituted or substituted in the alkyl moiety, unsubstituted or substituted amino, or an N-heterocycle which may or may not contain further hetero atoms, Y is vinyl or a radical &#x2014;CH&#x2014;CH&#x2014;U and U is a group removable under alkaline conditions, k is a number 2, 3, 4, 5 or 6, m is a number 0 or 1, and n is a number 0, 1 or 2, with the proviso that when A denotes a monoazo chromophore it is not directly linked to the triazinyl radical through a hydroxynaphthalenesulfonic acid coupling component and does not denote a radical of formula (II), are suitable for dyeing cellulosic or nitrogen-containing fiber materials 

Fiber-reactive azo dyes, their preparation and their use

Reactive dyes containing at least one structural unit of formula (I), wherein Y is vinyl or a radical &#x2014;CH&#x2014;CH&#x2014;U and U is a group removable under alkaline conditions, are suitable for dyeing cellulosic or amide-group-containing fiber materials.

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Efringen-Kirchen, Germany

Bernhard Müller