Bleaching and dyeing; fluid treatment and chemical modification – Dye or potential dye composition – additive – treatment,... – Mixed dyes – noncomplexed
Patent
1999-09-17
2000-11-28
Einsmann, Margaret
Bleaching and dyeing; fluid treatment and chemical modification
Dye or potential dye composition, additive, treatment,...
Mixed dyes, noncomplexed
8919, 8445, 8499, 564 49, 564 56, 564 57, C09B 4800, D06P 140
Patent
active
061529680
DESCRIPTION:
BRIEF SUMMARY
The present invention provides for the use of water-soluble quinacridones of the formula I ##STR2## where M.sup..sym. is a lithium, sodium, potassium or ammonium cation, -C.sub.8 -alkyl, C.sub.1 -C.sub.8 -alkoxy, carboxyl, C.sub.1 -C.sub.4 -alkoxycarbonyl, sulfamoyl, mono- or di-(C.sub.1 -C.sub.4)-alkylsulfamoyl, carbamoyl, mono- or di-(C.sub.1 -C.sub.4)-alkylcarbamoyl, unsubstituted or substituted mono- or diphenylsulfamoyl, unsubstituted or substituted mono- or diphenylcarbamoyl, halogen, nitro or cyano, recording liquids comprising them. The invention also relates to soluble quinacridones with an ammonium cation.
JP-A 5 004 019 and JP-A 46 010 069 disclose pigment mixtures containing salts of primary, secondary or tertiary amines of sulfonated quinacridones.
Furthermore, U.S. Pat. No. 3,386,843 describes the sodium salt of sulfonated quinacridone as a precursor in the preparation of aluminum quinacridonesulfonic acids.
These salts are employed as crystallization disruptors for quinacridone pigments in order to improve their dispersing properties.
JP-A 05 222 328 discloses quinacridones having 2-carboxybenzoylaminomethylene substituents in mixtures of colorants for inkjet printing.
The use of quinacridone pigments in graphic inks and printing inks is generally known but in general is hampered by the problem of unstable colorant mixtures. This can lead to the deposition of solid substances and thus to the blockage of nozzles, which often totally rules out the use of quinacridone pigments in recording liquids such as inks.
If soluble colorants, ie. dyes, instead are used in inks, then the wet fastness of the resultant prints is usually inadequate.
It is an object of the present invention, therefore, to provide inkjet coloring techniques with colorants which solve the problems of the prior art.
We have found that this object is achieved by the use of the water-soluble quinacridones defined at the outset for dyeing and printing natural and synthetic fiber material, especially for the pulp dyeing of paper and for inkjet printing processes.
The quinacridones have up to four, preferably three, two or one sulfo group in anion form. Particular preference is given to quinacridones having two sulfo groups.
Suitable cations M.sup..sym. are lithium, sodium, potassium or, preferably, ammonium ions. For the purposes of the invention, ammonium ions can be substituted or unsubstituted ammonium cations. The former include monoalkyl-, dialkyl-, trialkyl-, tetraalkyl- or benzyltrialkylammonium cations or those cations derived from nitrogen-containing 5- or 6-membered saturated heterocycles. Alkyl is generally straight-chain or branched C.sub.1 -C.sub.20 -alkyl which can be substituted by 1 or 2 hydroxyls and/or interrupted by 1 to 4 oxygens in ether function. Where the ammonium ions have one or more alkyls, the latter can be identical or different.
Particular mention may be made of mono-C.sub.1 -C.sub.6 -alkylammonium, di-(C.sub.1 -C.sub.6 -alkyl)ammonium, tri-(C.sub.1 -C.sub.6 -alkyl)ammonium, tetra-(C.sub.1 -C.sub.6 -alkyl)ammonium, benzyltri-(C.sub.1 -C.sub.6 -alkyl)ammonium, pyrrolidinium, piperidinium, morpholinium, piperazinium or N-(C.sub.1 -C.sub.4 -alkyl)piperazinium ions.
Suitable amines from which the ammonium ions are derived are, for example: isopropylamine, butylamine, sec-butylamine, isobutylamine, 1,2-dimethylpropylamine or 2-ethylhexylamine, diisopropylamine, dibutylamine, diisobutylamine, di-sec-butylamine, bis-(2-ethylhexyl)amine, N-methyl-n-butylamine or N-ethyl-n-butylamine, 3-methoxypropylamine, 3-ethoxypropylamine or 3-(2-ethylhexoxy)propylamine, tributylamine, N,N-dimethylethylamine, N,N-dimethylisopropylamine, N,N-dimethylbenzylamine and mono- or diisopropanolamine, N-mono- or N,N-di-(C.sub.1 -C.sub.4 -alkyl)ethanolamines, -propanolamines or -isopropanolamines, such as N-mono- or N,N-dimethylethanolamine, -propanolamine or -isopropanolamine, N-mono- or N,N-diethylethanolamine, -propanolamine or -isopropanolamine, N-mono- or N,N-dipropylethanolamine, -propanolamine or -isopropanolamine, N-mono- or N,
REFERENCES:
patent: 3386843 (1968-06-01), Jaffe et al.
B. Smith, et al., Text. Chem. Color, vol. 15, No. 8, pps. 23-29, "Ink Jet Printing For Textiles", Aug. 1987.
L.A. Graham, Text. Chem Color, vol. 21, No. 6, pps. 27-32, "Ink Jet Systems For Dyeing and Printing of Textiles", Jun. 1989.
Etzbach Karl-Heinz
Kranz Carolin
Sens Rudiger
BASF - Aktiengesellschaft
Einsmann Margaret
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