Bleaching and dyeing; fluid treatment and chemical modification – Reactive dye composition – process – or product – Alkylene sulfato – halotriazine – halodiazine,...
Patent
1999-12-22
2000-12-12
Einsmann, Margaret
Bleaching and dyeing; fluid treatment and chemical modification
Reactive dye composition, process, or product
Alkylene sulfato, halotriazine, halodiazine,...
8638, 8639, 8641, 8643, 8685, 8918, 8924, 534634, 534637, 534638, 540126, 544 76, 544 77, 552218, 552219, C09B 6204, C09B 67221, D06P 1382
Patent
active
061592501
DESCRIPTION:
BRIEF SUMMARY
SPECIFICATION
The present invention relates to novel reactive dyes of the formula I ##STR2## where Chr is a chromophore residue with or without further fiber-reactive groups and derived from a metallized or unmetallized mono- or disazo dye, from a triphendioxazine, from an anthraquinone, from a metallized formazan or from a metallized phthalocyanine, or substituted or unsubstituted C.sub.1 -C.sub.6 -alkyl, -alkylene with or without interruption by 1 or 2 unadjacent oxygen atoms, and substituted or unsubstituted phenyl, substituted or unsubstituted C.sub.2 -C.sub.3 -alkenyl, substituted or unsubstituted C.sub.1 -C.sub.6 -alkoxy, substituted or unsubstituted phenoxy or C.sub.1 -C.sub.6 -alkylamino, for dyeing or printing hydroxyl-containing or nitrogenous substrates.
WO 97/19137 teaches reactive dyes composed of three chromophores linked via a polyamine. The synthesis of these reactive dyes generally produces not only the trimer but also, owing to incomplete conversion, the sparingly soluble dimer. However, good solubility is an important requirement for reactive dyes, since incomplete solution gives rise to nonuniform dyeings.
It is an object of the present invention to provide novel reactive dyes having advantageous application properties, especially good solubility. Furthermore, they shall be high yielding, have high wetfastnesses and provide brilliant dyeings, and their unfixed portions shall be easy to wash off. In particular, their mixtures with the trimer shall have advantageous properties.
We have found that this object is achieved by the reactive dyes of the formula I defined at the beginning and also by their mixtures, a process for preparing the mixtures and their use for dyeing or printing hydroxyl-containing or nitrogenous substrates.
The novel reactive dyes of the formula I are each shown in the form of their free acids. It will be readily understood that the invention also encompasses their salts.
Suitable cations are derived from metal or ammonium ions. Metal ions are especially lithium, sodium or potassium ions. Ammonium ions for the purposes of the present invention are substituted or unsubstituted ammonium cations. Examples of substituted ammonium cations are monoalkyl-, dialkyl-, trialkyl-, tetraalkyl- or benzyltrialkyl-ammonium cations or those cations derived from nitrogenous five- or six-membered saturated heterocycles, such as pyrrolidinium, piperidinium, morpholinium, piperazinium or N-alkylpiperazinium cations or their N-monoalkyl- or N,N-dialkyl-substituted products. Alkyl is generally straight-chain or branched C.sub.1 -C.sub.20 -alkyl, which may be substituted by 1 or 2 hydroxyl groups and/or interrupted by from 1 to 4 oxygen atoms in ether function.
In general, all alkyl, alkenyl and alkylene groups mentioned above and appearing in the formulae which follow may be straight-chain or branched.
Substituted alkyl radicals preferably contain, unless otherwise stated, 1, 2 or 3 substituents, especially 1 or 2 substituents, in any desired position.
For substituted alkyl or alkoxy appearing herein, suitable substituents include, for example, unless otherwise stated, chlorine, hydroxyl, methoxy, carboxyl and methoxycarbonyl.
Substituted alkenyl groups can be substituted, for example, by carboxyl and methoxycarbonyl.
For substituted phenyl or phenoxy appearing herein, suitable substituents include, for example, unless otherwise stated, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy, halogen, nitro, hydroxysulfonyl, carboxyl, sulfamoyl, carbamoyl or mono- or di-C.sub.1 -C.sub.4 -alkylsulfamoyl. The number of substituents is generally within the range from 1 to 3, preferably 1 or 2.
Suitable halogen radicals are fluorine, chlorine and bromine.
Z.sup.1, Z.sup.2, Z.sup.3 and A are each for example methyl, ethyl, propyl, isopropyl, butyl, isobutyl, sec-butyl, tert-butyl, pentyl, isopentyl, neopentyl, tert-pentyl, hexyl, 2-methylpentyl, chloromethyl, 2-chloroethyl, 2- or 3-chloropropyl, 2- or 4-chlorobutyl, hydroxymethyl, 2-hydroxyethyl, 2- or 3-hydroxypropyl, 2- or 4-hydroxybutyl, methoxym
REFERENCES:
patent: 5968208 (1999-10-01), Taylor
BASF - Aktiengesellschaft
Einsmann Margaret
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