Abstract: A dyestuff mixture containing one or more copper formazan dyestuffs of the formula (1), one or more disazo dyestuffs of the formula (2) and one or two monoazo dyestuffs of the formula (3)

Abstract: The invention relates to an ATR spectrometer, containing an optical probe having a sensor made of transparent material and a feed line and an exit line for light, wherein the sensor contains an optical polymer or a mixture of different optical polymers. The probe of the spectrometer according to the invention essentially has the advantages that it is inexpensive and extremely flexible, and that it can be matched to the concentration range of the solution to be examined, which makes it possible to fill the gaps in terms of measurable concentrations between conventional transmission spectroscopy and prior ATR spectroscopy.

Abstract: Process for preparing colored regenerated-cellulose fiber, which comprises adding a formulation comprising a cationized polysaccharide and an anionic dye to a viscose dope, an alkali cellulose or a cellulose solution and spinning fiber by a viscose spinning process or from the cellulose solution.

Abstract: Dye mixtures of fiber-reactive azo dyes and their use for dyeing hydroxy- and/or carboxamido-containing fiber materialRed-dyeing fiber-reactive phenylazoaminonaphthol dyes, yellow-dyeing fiber-reactive phenylazoaminobenzene dyes, blue-dyeing fiber-reactive copper formazan dyes and navy-dyeing fiber-reactive disazo dyes of the formulae (1) to (5) as claimed and defined in claim 1 are described which are suitable for dyeing hydroxy- and/or carboxamido-containing fiber material, such as cellulose fiber materials, wool and synthetic polyamide fibers individually or together or some of them together or as a mixture in trichromatic dyeing methods. During the dyeing process a definite hue within the color triangle can be obtained and kept constant by adding the individual dye solutions of the individual dyes and/or mixtures of some of the dyes in a controlled manner by means of the ATR measurement technique.

Abstract: Use of carbohydrate compounds as auxiliaries for dyeing and printing fiber materialsUse of carbohydrate compounds of the formula (1)Z--G--T--R.sup.1.sub.n (1)in whichZ is the radical of a carbohydrate from the series consisting of mono-, di- or oligosaccharides or of a sugar alcohol, the free valency being on a carbon atom;G is a bridge member from the series consisting of --O--, --NR.sup.5 --, --O--CO--, --NR.sup.5 --CO-- and --NR.sup.5 --SO.sub.2 --, in which R.sup.5 is hydrogen or C.sub.1 ---C.sub.4 -alkyl, which can be substituted by 1 to 4 radicals from the series consisting of hydroxyl, sulfo, sulfato or carboxyl;T is a C.sub.4 -C.sub.30 -aliphatic, cycloaliphatic or oiefinic hydrocarbon radical, or is C.sub.6 -C.sub.10 -aryl or is C.sub.6 -C.sub.10 -aryl-C.sub.1 -C.sub.4 alkylene;R.sup.1 is hydroxyl, carboxyl, cyano, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy, sulfo, C.sub.1 -C.sub.10 -alkylsulfonyl, aminosulfonyl, C.sub.1 -C.sub.10 -alkylaminosulfonyl or C.sub.6 -C.sub.10 -arylaminosulfonyl, C.

Abstract: A solid or dissolved dye mixture of azo dyes having fiber-reactive groups of the vinyl sulfone series, yielding dyeings of blue color shade, comprising one or more copper formazane dyes of the general formula (1) shown and defined in claim 1, one or more disazo dyes of the general formula (2) shown and defined in claim 1, and one or two monoazo dyes of the general formula (3) shown and defined in claim 1, respectively in the description part of the patent application, which dye mixtures are suitable for dyeing hydroxy- and/or caroboxamido groups containing materials, in particular fiber materials, such as cellulose fibers, for example cotton, wool and synthetic polyamide fibers, also together with other suitable dyes in trichromatic dyeing.

Abstract: A dye mixture of azo dyes having fiber-reactive groups of the vinylsulfone series, comprising one or more navy-blue disazo dyes with the bivalent 1-amino-8-hydroxy-3,6-disulfo-naphthylene coupling component, one or more red-dyeing mono azo dyes, containing a phenylamino-chlorotriazinylamino-disulfo-naphthol-coupling component and one or more orange-dyeing monoazo dyestuffs with an amino-sulfonaphthol-coupling component, which dye mixtures are suitable for dyeing hydroxy- and/or carboxamido-groups containing materials, in particular fiber materials, such as cellulose fibers, for example cotton, wool and synthetic polyamide fibers.

Abstract: A process which comprises suspending a reactive-dyed cellulose material, optionally in mixture with pulp, in an alkali metal hydroxide solution (alkali cellulose), optionally subjecting the alkali cellulose to the action of a reducing sulfur compound at a temperature from 20.degree. to 80.degree. C., then allowing the alkali cellulose to ripen at temperatures from 30.degree. to 80.degree. C. for at least 30 minutes, dissolving the alkali cellulose at a temperature from 10.degree. to 30.degree. C. by conversion with carbon disulfide into the xanthate, and spinning the xanthated alkali cellulose into fibers, makes it possible to recycle cellulosic waste textiles into similarly colored or colorless cellulose fiber materials.

Abstract: Process for dyeing regenerated cellulose fibers, which comprises adding an amine-substituted cellulose derivative to a viscose dope or to an alkali cellulose and spinning fibers by the viscose spinning process, or adding said cellulose derivative to a cellulose solution and spinning fibers from the solution, processing fibers into a woven or knitted fabric and dyeing the fabric with a direct or acid dye in the absence of additional electrolyte salt.

Abstract: Aqueous ink formulations consisting essentially of one or more reactive dyes whose reactive group contains a cyanamido group and an alkaline agent are notable for improved storage stability and are especially suitable for inkier printing.

Abstract: Water-soluble disazo compounds, preparation thereof and use thereof as dyes There are described disazo compounds of the formula (1) ##STR1## where D is phenyl or naphthyl, R.sup.1 is hydrogen, lower alkyl, lower alkoxy, carboxyl, halogen, lower alkanoylamino or benzoylamino, R.sup.2 is hydrogen or lower alkyl, M is hydrogen or a salt-forming metal, m is 1, 2 or 3, n is 1 or 2, and R is hydrogen or lower alkyl. The compounds (1) have fiber-reactive properties and are used as dyes for dyeing and printing amino- and/or hydroxy-containing material, in particular fiber material, such as wool, silk and synthetic polyamide and also cellulose fiber materials, such as cotton; the dyeings and prints obtained are strong, fast and reddish brown.

Abstract: Fiber materials are modified with a polyalkyleneimine polymer at crosslinking agent, preferably glyoxal, and optionally dyed with water-soluble, anionic dyes, preferably reactive dyes. The dyeing process with fiber materials modified according to the invention can be carried out low-salt or completely without salt and also alkali-free or using only minimal amounts of alkali.

Abstract: A process for printing and dyeing sheetlike fiber materials with anionic dyes comprisesa) first applying to the sheetlike fiber material an aqueous solution containing a fixing alkali and a compound which contains a primary, secondary or tertiary amino group or a quaternary ammonium group, which may each also be part of a heterocycle, by using a printing process, thenb) subjecting the sheetlike fiber material to a fixing treatment to modify the sheetlike fiber material, and finally and optionallyc) dyeing the modified sheetlike fiber material one or more times by a customary exhaust or padding method.

Abstract: Process and use of reactive disperse dyes for dyeing and printing aminated, textile cotton and cotton-polyester blend fabricsHydroxyl-containing materials, in particular fiber materials, such as cellulose fiber materials, which have been modified with an amino-containing compound are dyed as such or in blend with polyester fibers with the aid of a fiber-reactive disperse dye in an aqueous, low-electrolyte or completely electrolyte-free medium and in the absence of an alkaline or alkali-donating agent at a temperature of between 100.degree. and 210.degree. C. Not only the modified cellulose-containing material but also the polyester material can be dyed in one and the same dyeing process with one and the same fiber reactive disperse dye. A uniform overall dyeing not only for modified hydroxyl-containing material but also for polyester material is obtained.

Abstract: Aqueous ink formulation and a process for printing sheetlike cellulose fiber materials or materials containing cellulose fibers with reactive dyes using a single-phase inkjet process or some other non-contact minimal addon spray technique and subsequent fixation of the reactive dyes on the fiber, which comprises using an aqueous ink formulation comprising an alkali metal fluoride, an alkali metal formate, an alkali metal citrate, an alkali metal salt of a C.sub.2 -C.sub.4 -dicarboxylic acid or a mixture thereof.

Abstract: Water-soluble disazo compounds, a process for their preparation and their use as dyes.Disazo compounds are described which have the formula (1) given and defined below and are used in their function as fiber-reactive dyes for the dyeing of hydroxy- and/or carboxamido-containing fiber material, such as cellulose fiber materials and synthetic and natural polyamide fiber materials, such as wool. They produce brown dyeings and prints having high color strength and good color fastness by the application and fixation methods customary for fiber-reactive dyes ##STR1## in which R is hydrogen or sulfo,R.sup.1 is hydroxy, methoxy or ethoxy,is hydrogen or an alkali metal and the non-fixed sulfo group in the naphthylene radical is in the 6 or 7 position.

Abstract: There is described a process for dyeing sheetlike fiber materials, in particular those made of or containing cellulose fibers, with anionic dyes, in particular those having fiber-reactive groups, which comprises applying an alkali-free and preferably low-electrolyte or completely electrolyte-free aqueous solution of the anionic dye by the inkjet printing spray technique to a fiber material which has been pretreated and modified with a compound that contains one or more primary, secondary or tertiary amino groups or quaternary ammonium groups, which amino/ammonium groups may be part of a heterocycle. There is generally no need for an aftertreatment by washing. The costly treatment of wastewaters resulting from the excess dyeing liquors otherwise obtained is eliminated. If fiber-reactive dyes are used, fixation by means of alkali is not necessary; it is generally effected by a short heat treatment.