Classifications

• • C—CHEMISTRY; METALLURGY
  • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
  • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
  • C09B62/00—Reactive dyes, i.e. dyes which form covalent bonds with the substrates or which polymerise with themselves
  • C09B62/44—Reactive dyes, i.e. dyes which form covalent bonds with the substrates or which polymerise with themselves with the reactive group not directly attached to a heterocyclic ring
  • C09B62/443—Reactive dyes, i.e. dyes which form covalent bonds with the substrates or which polymerise with themselves with the reactive group not directly attached to a heterocyclic ring the reactive group being alternatively specified
  • C09B62/447—Azo dyes
  • C09B62/453—Disazo or polyazo dyes
• • C—CHEMISTRY; METALLURGY
  • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
  • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
  • C09B62/00—Reactive dyes, i.e. dyes which form covalent bonds with the substrates or which polymerise with themselves
  • C09B62/44—Reactive dyes, i.e. dyes which form covalent bonds with the substrates or which polymerise with themselves with the reactive group not directly attached to a heterocyclic ring
  • C09B62/4401—Reactive dyes, i.e. dyes which form covalent bonds with the substrates or which polymerise with themselves with the reactive group not directly attached to a heterocyclic ring with two or more reactive groups at least one of them being directly attached to a heterocyclic system and at least one of them being directly attached to a non-heterocyclic system
  • C09B62/4403—Reactive dyes, i.e. dyes which form covalent bonds with the substrates or which polymerise with themselves with the reactive group not directly attached to a heterocyclic ring with two or more reactive groups at least one of them being directly attached to a heterocyclic system and at least one of them being directly attached to a non-heterocyclic system the heterocyclic system being a triazine ring
  • C09B62/4411—Azo dyes
  • C09B62/4415—Disazo or polyazo dyes
• • C—CHEMISTRY; METALLURGY
  • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
  • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
  • C09D11/00—Inks
  • C09D11/30—Inkjet printing inks
  • C09D11/32—Inkjet printing inks characterised by colouring agents
  • C09D11/328—Inkjet printing inks characterised by colouring agents characterised by dyes

Definitions

• Reactive dyes process for their preparation and their use
• the invention is in the technical field of fiber-reactive azo dyes.
• Reactive dyes that can be used for dyeing cellulose fibers are known and described in the patent literature numerous. However, these conventional dyes do not sufficiently meet the latest high requirements for reactive dyeings. In particular, the build-up behavior of many reactive dyes is often capable of improvement. Therefore, there is still a need for new fiber-reactive dyes that have improved properties. In particular for the production of dyeings having a yellow shade, reactive dyestuffs having a high fastness level and a very good color buildup are required.
• the document DE 4423650 describes yellow-dyeing fiber-reactive dyes which, however, do not meet the specified criteria
• the invention thus relates to dyes of the formula (1) given and defined below.
• M is hydrogen or an alkali metal, such as sodium, potassium or lithium
• R is a monoazo dye of the formulas (2a) to (2i)
• R 1 is hydrogen, methyl, methoxy, sulfo or chlorine
• R 2 has the meaning of R 1 , n is the number zero or 1 (where, in the case of n equal to zero, this group represents hydrogen) and
• Y is vinyl or ethyl which is substituted in the ⁇ -position by a substituent which is eliminable under the action of an alkaline agent to form the vinyl group, such as, for example, chlorine, bromine, acetyloxy, p-toluenesulfonyloxy, thiosulfato, phosphato and in particular sulfato, or ß-hydroxyethyl.
• the dyes of the formula (1) in which R has one of the meanings of the formulas (2a) to (2h) are prepared by reacting the monoazo compound of the formula (4)
• the monoazo compound of the formula (4) is known from German Patent Publication DE4425222 and can be prepared on the basis of the information given there.
• the acylation of the monoazo compound of the formula (4) is carried out with cyanuric chloride and the subsequent condensation with the monoazo compound of the formula (5) in the weakly acidic to neutral range.
• the reaction temperature for the acylation is 20-30 ° C, that for the condensation at 60-80 ° C.
• the dyes of the formula (1) in which R has the meaning of the formula (2i) are prepared by reacting the monoazo compound of the formula (4) wherein M is one of the above has acylated with cyanuric chloride and then condensed with a compound of formula (6).
• the acylation of the monoazo compound of the formula (4) with cyanuric chloride and the subsequent condensation with a compound of the formula (6) are carried out in the weakly acidic to neutral range.
• the reaction with a diazonium compound of an amine of the general formula (7) also takes place in the weakly acidic to neutral range.
• the dyes of the invention have valuable performance properties. They are used for dyeing or printing hydroxyl- and / or carboxamido-containing materials, for example in the form of fabrics, such as paper and leather or films, such as polyamide, or in the mass, such as polyamide and polyurethane, but especially of these Materials used in fiber form. Also, the resulting in the synthesis solution of the dyes of the invention, optionally after addition of a buffer substance, optionally after concentration or dilution, can be supplied directly as a liquid preparation of the dyeing use.
• the present invention thus also relates to the use of the dyes of the invention for dyeing or printing these materials or processes for dyeing or printing such materials in per se conventional procedures which one uses the dyes as a colorant.
• the materials are preferably used in the form of fiber materials, in particular in the form of textile fibers, such as fabrics or yarns, such as in the form of strands or wound bodies.
• the dyes according to the invention can also be used in digital printing processes, in particular in digital textile printing. For this purpose it is necessary to formulate the dyes of the invention in inks.
• Aqueous inks for digital printing, which are characterized by a content of a dye according to the invention, are also the subject of the present invention.
• the inks according to the invention contain the dyes according to the invention preferably in amounts of from 0.1% by weight to 50% by weight, more preferably in amounts of from 1% by weight to 30% by weight and most preferably in amounts of 1% by weight % to 15% by weight based on the total weight of the ink.
• the inks may contain, in addition to the dyes according to the invention, further reactive dyes which are used in digital printing.
• a conductivity of 0.5 to 25 mS / m can be set by addition of electrolyte.
• electrolyte for example, lithium nitrate and potassium nitrate are suitable.
• the inks of the invention may contain organic solvents having a total content of 1-50%, preferably 5-30% by weight.
• Suitable organic solvents are, for example, alcohols, such as. As methanol, ethanol, 1-propanol, isopropanol, 1-butanol, tert. Butanol and pentyl alcohol; polyhydric alcohols, such as. B.
• ethylene glycol monomethyl ether ethylene glycol monoethyl ether, Ethylene glycol monobutyl ether, diethylene glycol monomethyl ether, diethylene glycol monoethyl ether, diethylene glycol monobutyl ether, diethylene glycol monohexyl ether, triethylene glycol monomethyl ether, triethylene glycol monobutyl ether, tripropylene glycol monomethyl ether, tetraethylene glycol monomethyl ether, tetraethylene glycol monobutyl ether, tetraethylene glycol dimethyl ether, propylene glycol monomethyl ether, propylene glycol monoethyl ether, propylene glycol monobutyl ether and tripropylene glycol isopropyl ether; Polyalkylene glycol ethers, such as. For example, polyethylene glycol monomethyl ether, polypropylene glycol glycerol ether, polyethylene glycol tridecyl ether, polyethylene glycol nonylphen
• Amines such as Methylamine, ethylamine, triethylamine, diethylamine, dimethylamine, trimethylamine, dibutylamine, diethanolamine, triethanolamine, N-acetylethanolamine, N-formylethanolamine, ethylenediamine; Urea derivatives, such as. Urea, thiourea, N-methylurea, N, N'-epsilon-dimethylurea, ethyleneurea, 1,1,3,3-tetramethylurea; Amides, such as Dimethylformamide, dimethylacetamide and acetamide; Ketones or keto alcohols, such as. Acetone and diacetone alcohol; cyclic ethers, such as.
• 2- (2-propoxyethoxy) ethanol pyridine, piperidine, butyrolactone, trimethylpropane, 1, 2-dimethoxypropane, dioxane, ethyl acetate, ethylenediaminetetraacetate, ethylpentyl ether, 1, 2-dimethoxypropane and trimethylpropane.
• the inks of the invention may contain the usual additives, such as viscosity moderators to adjust viscosities in the range of 1, 5 to 40.0 mPa.s in a temperature range of 20 to 50 ° C.
• Preferred inks have a viscosity of 1.5 to 20 mPas, and particularly preferred inks have a viscosity of 1.5 to 15 mPas.
• Suitable viscosity moderators are rheological additives, for example: polyvinylcaprolactam, polyvinylpyrrolidone and their co-polymers polyetherpolyol, associative thickener, polyurea, polyurethane, sodium alginates, modified galactomannans, polyetherurea, polyurethane, nonionic cellulose ethers.
• the inks of the invention can surface-active substances for the adjustment of surface tensions of 20 to 65 mN / m, which are optionally adjusted depending on the method used (thermal or piezo technology).
• Suitable surface-active substances are, for example, surfactants of all kinds, preferably nonionic surfactants, butyldiglycol and 1,2-hexanediol.
• the inks of the present invention may contain conventional additives such as fungicidal and bacterial growth inhibiting agents in amounts of from 0.01 to 1% by weight based on the total weight of the ink.
• the inks can be prepared in a conventional manner by mixing the components in water.
• the inks according to the invention are particularly suitable for use in inkjet printing processes for printing a wide variety of preprepared materials, such as silk, leather, wool, polyamide fibers and polyurethanes, and in particular cellulose-containing fiber materials of all kinds.
• preprepared materials such as silk, leather, wool, polyamide fibers and polyurethanes, and in particular cellulose-containing fiber materials of all kinds.
• blended fabrics can be printed, for example mixtures of cotton, silk or wool with polyester fibers or polyamide fibers.
• the aids In contrast to conventional textile printing, in which the printing ink already contains all the fixing chemicals and thickeners for a reactive dye, in the case of digital or ink-jet printing, the aids must be applied to the textile substrate in a separate pretreatment step.
• the pretreatment of the textile substrate such as, for example, cellulose and cellulose regenerated fibers, as well as silk and wool, takes place before printing with an aqueous alkaline liquor.
• alkali such as sodium carbonate, sodium bicarbonate, Nathumacetat, trisodium phosphate, sodium silicate, sodium hydroxide, alkali donors such as Nathumchloracetat, sodium formate, hydrotropic substances such as urea, reduction inhibitors, such as sodium nitrobenzenesulfonates, and thickeners
• alkali such as sodium carbonate, sodium bicarbonate, Nathumacetat, trisodium phosphate, sodium silicate, sodium hydroxide
• alkali donors such as Nathumchloracetat, sodium formate
• hydrotropic substances such as urea
• reduction inhibitors such as sodium nitrobenzenesulfonates, and thickeners
• pre-preparation reagents are coated with suitable applicators, such as a 2- or 3-roll pad, with non-contact
• Spray technologies applied by foam application or with appropriately adapted ink-jet technologies in a defined amount evenly on the textile substrate and then dried.
• the textile fiber material is dried at 120 to 150 ° C and then fixed.
• the fixation of the ink jet prints prepared with reactive dyes can be carried out at room temperature, or with saturated steam, with superheated steam, with hot air, with microwaves, with infrared radiation, with laser or electron beams or with other suitable types of energy transfer.
• the prints made with the inks of the present invention especially on cellulose fiber matehals, have high color strength and high fiber-dye bonding stability in both acidic and alkaline ranges, furthermore good fastness to light and very good wet fastness properties such as washing, water, seawater -, over-dyeing and perspiration fastness, as well as a good pleating fastness, ironing fastness and rubbing fastness.
• the following examples serve to illustrate the invention.
• the parts are by weight, the percentages are by weight unless otherwise stated. Parts by weight refer to parts by volume such as kilograms to liters.
• the compounds described by formula in the examples are written in the form of the alkali metal salt, since they are generally prepared and isolated in the form of their salt, preferably sodium or potassium salt, and used in the form of their salt for dyeing.
• the starting compounds mentioned in the examples below may be in the form of the free acid or else in
• alkali metal salts such as sodium or potassium salts
• Example 1 A suspension of 800 parts of water and 14 parts of the monoazo compound of the formula (4) with M of the abovementioned meaning, preferably sodium, is adjusted to pH 6.5 with sodium carbonate. Subsequently, 36.9 parts of cyanuric chloride are added and the mixture is stirred for 1 hour at room temperature, wherein the pH is maintained at 6.0 to 6.5 with 15% sodium carbonate solution. After completion of the acylation, a neutral solution of 102 parts of the monoazo dye of the following formula
• the dye (1 -1) according to the invention is isolated by evaporation of the synthesis solution in a vacuum drying oven.
• the inventive dye (1 -2) is isolated by evaporation of the synthesis solution in a vacuum oven.
• the dye solution prepared according to Example 9 is added dropwise, with the aid of a 15% aqueous sodium carbonate solution, the pH is maintained at 6.3-6.5.
• the reaction mixture is left for 2 hours at 18-20 ° C. After stirring, adjust the pH to 5 with a little dilute hydrochloric acid and evaporate the reaction solution in vacuo.
• the dyestuff of the formula (1 -10) is obtained.
• the dye solution prepared according to Example 9 is added dropwise, with the aid of a 15% aqueous sodium carbonate solution, the pH is maintained at 6.3-6.5.
• the reaction mixture is allowed to stir for another 2 hours at 18-20 ° C., then the pH is adjusted to 5 with a little dilute hydrochloric acid and the reaction solution is evaporated in vacuo.
• the dyestuff of the formula (1 -1 1) is obtained.
• a fabric consisting of mercerized cotton is padded with a liquor containing 35 g / l of sodium carbonate, 100 g / l of urea and 150 g / l of a low-viscosity Nathum alginate solution (6%) and then dried.
• the fleet intake is 70%.
• On pretreated textile there is by means of an aqueous ink containing 2% dye according to Example 1, 20% sulfolane, 0.01% Mergal K9N and 77.99% water, with a drop-on-demand (bubble jet) ink jet Printhead printed a pattern. The print is completely dried. The fixation takes place by means of saturated steam at 102 ° C for 8 minutes. The pressure is then rinsed warm, subjected to a fastness wash with hot water at 95 ° C., rinsed warm and then dried. This gives a yellow print with excellent use fastness.
• a fabric consisting of mercerized cotton is padded with a liquor containing 35 g / l of sodium carbonate, 50 g / l of urea and 150 g / l of a low-viscosity Nathum alginate solution (6%) and then dried.
• the fleet intake is 70%.
• the textile pretreated in this way is treated with an aqueous ink containing 8% of the dyestuff of Example 2, 20% of 1,2-propanediol, 0.01% of Mergal K9N and 71.99% of water with a drop-on-demand (Bubble Jet ) Ink-jet print head a pattern printed.
• the print is completely dried.
• the fixation takes place by means of saturated steam at 102 ° C for 8 minutes.
• the pressure is then rinsed warm, subjected to a fastness wash with hot water at 95 ° C., rinsed warm and then dried. This gives a yellow print with excellent use fastness.
• a fabric consisting of mercerized cotton is padded with a liquor containing 35 g / l of sodium carbonate, 100 g / l of urea and 150 g / l of a low-viscosity Nathum alginate solution (6%) and then dried.
• the fleet intake is 70%.
• the textile pretreated in this way is treated with an aqueous ink containing 8% of the dye according to Example 3, 15% N-methylpyrrolidone, 0.01% Mergal K9N and 76.99% water with a drop-on-demand (bubble jet) ink jet Printhead printed a pattern.
• the print is completely dried.
• the fixation takes place by means of saturated steam at 102 ° C for 8 minutes.
• the pressure is then rinsed warm, subjected to a fastness wash with hot water at 95 ° C., rinsed warm and then dried. This gives a yellow print with excellent use fastness.

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• Chemical & Material Sciences (AREA)
• Organic Chemistry (AREA)
• Life Sciences & Earth Sciences (AREA)
• Engineering & Computer Science (AREA)
• Materials Engineering (AREA)
• Wood Science & Technology (AREA)
• Coloring (AREA)

Applications Claiming Priority (2)

Publications (1)

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• 2005
  • 2005-03-26 DE DE102005013960A patent/DE102005013960A1/de not_active Withdrawn
• 2006
  • 2006-03-21 WO PCT/EP2006/060927 patent/WO2006103186A2/de active Application Filing
  • 2006-03-21 KR KR1020077021410A patent/KR20070114171A/ko not_active Application Discontinuation
  • 2006-03-21 CN CNA2006800047694A patent/CN101384671A/zh active Pending
  • 2006-03-21 BR BRPI0609314-0A patent/BRPI0609314A2/pt not_active IP Right Cessation
  • 2006-03-21 CA CA002595798A patent/CA2595798A1/en not_active Abandoned
  • 2006-03-21 EP EP06725211A patent/EP1869128A2/de not_active Withdrawn
  • 2006-03-21 MX MX2007011846A patent/MX2007011846A/es unknown
  • 2006-03-21 US US11/909,684 patent/US20080194817A1/en not_active Abandoned
  • 2006-03-23 TW TW095110103A patent/TW200700506A/zh unknown

Non-Patent Citations (1)

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