WO2007131957A2 - Disazo acid dyes - Google Patents

Disazo acid dyes Download PDF

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Publication number
WO2007131957A2
WO2007131957A2 PCT/EP2007/054581 EP2007054581W WO2007131957A2 WO 2007131957 A2 WO2007131957 A2 WO 2007131957A2 EP 2007054581 W EP2007054581 W EP 2007054581W WO 2007131957 A2 WO2007131957 A2 WO 2007131957A2
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WO
WIPO (PCT)
Prior art keywords
alkyl
unsubstituted
substituted
unbranched
branched
Prior art date
Application number
PCT/EP2007/054581
Other languages
French (fr)
Other versions
WO2007131957A3 (en
Inventor
Rainer Nusser
Urs DÄTWYLER
Original Assignee
Clariant International Ltd
Clariant Finance (Bvi) Limited
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to US12/300,709 priority Critical patent/US20090126128A1/en
Priority to AU2007251589A priority patent/AU2007251589A1/en
Priority to CA002646126A priority patent/CA2646126A1/en
Priority to JP2009510424A priority patent/JP5341750B2/en
Priority to CN2007800178036A priority patent/CN101448901B/en
Priority to KR1020087027896A priority patent/KR101340101B1/en
Priority to BRPI0711651A priority patent/BRPI0711651B1/en
Priority to MX2008014473A priority patent/MX2008014473A/en
Application filed by Clariant International Ltd, Clariant Finance (Bvi) Limited filed Critical Clariant International Ltd
Priority to ES07729033T priority patent/ES2397184T3/en
Priority to EP07729033A priority patent/EP2027213B1/en
Publication of WO2007131957A2 publication Critical patent/WO2007131957A2/en
Publication of WO2007131957A3 publication Critical patent/WO2007131957A3/en
Priority to NO20084804A priority patent/NO20084804L/en
Priority to US13/099,669 priority patent/US8357210B2/en

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    • 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
    • C09B35/00—Disazo and polyazo dyes of the type A<-D->B prepared by diazotising and coupling
    • C09B35/02—Disazo dyes
    • C09B35/021—Disazo dyes characterised by two coupling components of the same type
    • C09B35/025—Disazo dyes characterised by two coupling components of the same type in which the coupling component is an amine or polyamine
    • 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
    • C09B35/00—Disazo and polyazo dyes of the type A<-D->B prepared by diazotising and coupling
    • C09B35/02—Disazo dyes
    • C09B35/037—Disazo dyes characterised by two coupling components of different types
    • 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
    • C09B35/00—Disazo and polyazo dyes of the type A<-D->B prepared by diazotising and coupling
    • C09B35/02—Disazo dyes
    • C09B35/039—Disazo dyes characterised by the tetrazo component
    • C09B35/205—Disazo dyes characterised by the tetrazo component the tetrazo component being a derivative of a diaryl- or triaryl- alkane or-alkene
    • C09B35/21—Disazo dyes characterised by the tetrazo component the tetrazo component being a derivative of a diaryl- or triaryl- alkane or-alkene of diarylmethane or triarylmethane
    • 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
    • C09B35/00—Disazo and polyazo dyes of the type A<-D->B prepared by diazotising and coupling
    • C09B35/02—Disazo dyes
    • C09B35/039—Disazo dyes characterised by the tetrazo component
    • C09B35/205—Disazo dyes characterised by the tetrazo component the tetrazo component being a derivative of a diaryl- or triaryl- alkane or-alkene
    • C09B35/215—Disazo dyes characterised by the tetrazo component the tetrazo component being a derivative of a diaryl- or triaryl- alkane or-alkene of diarylethane or diarylethene
    • 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
    • C09B35/00—Disazo and polyazo dyes of the type A<-D->B prepared by diazotising and coupling
    • C09B35/02—Disazo dyes
    • C09B35/039—Disazo dyes characterised by the tetrazo component
    • C09B35/28—Disazo dyes characterised by the tetrazo component the tetrazo component containing two aryl nuclei linked by at least one of the groups —CON<, —SO2N<, —SO2—, or —SO2—O—
    • 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
    • C09B35/00—Disazo and polyazo dyes of the type A<-D->B prepared by diazotising and coupling
    • C09B35/02—Disazo dyes
    • C09B35/039—Disazo dyes characterised by the tetrazo component
    • C09B35/28—Disazo dyes characterised by the tetrazo component the tetrazo component containing two aryl nuclei linked by at least one of the groups —CON<, —SO2N<, —SO2—, or —SO2—O—
    • C09B35/30—Disazo dyes characterised by the tetrazo component the tetrazo component containing two aryl nuclei linked by at least one of the groups —CON<, —SO2N<, —SO2—, or —SO2—O— from two identical coupling components
    • 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
    • C09B35/00—Disazo and polyazo dyes of the type A<-D->B prepared by diazotising and coupling
    • C09B35/02—Disazo dyes
    • C09B35/039—Disazo dyes characterised by the tetrazo component
    • C09B35/28—Disazo dyes characterised by the tetrazo component the tetrazo component containing two aryl nuclei linked by at least one of the groups —CON<, —SO2N<, —SO2—, or —SO2—O—
    • C09B35/32—Disazo dyes characterised by the tetrazo component the tetrazo component containing two aryl nuclei linked by at least one of the groups —CON<, —SO2N<, —SO2—, or —SO2—O— from two different coupling components
    • 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
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P3/00—Special processes of dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form, classified according to the material treated
    • D06P3/02—Material containing basic nitrogen
    • D06P3/04—Material containing basic nitrogen containing amide groups
    • D06P3/24—Polyamides; Polyurethanes
    • D06P3/241—Polyamides; Polyurethanes using acid dyes
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P5/00—Other features in dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form
    • D06P5/30—Ink jet printing

Definitions

  • the invention relates to novel acid dyes, a process for their preparation and their use for dyeing organic substrates.
  • Acid dyes are known and dyes with bridging members are known as well. However, there is still a need for acid dyes with improved properties.
  • the invention provides compounds of the general formula (I)
  • R 3 and R 8 is hydrogen, unsubstituted unbranched C 1-6 alkyl or unsubstituted branched C 3-6 alkyl or substituted unbranched C 1-6 alkyl or substituted branched C 3-6 alkyl or unsubstituted unbranched C 1-6 alkoxy or unsubstituted branched C 3-6 alkoxy or substituted unbranched C 1-6 alkoxy or substituted branched C 3-6 alkoxy, or halogen, or -NHCO-( C 1-6 alkyl) with an unbranched C 1-6 alkyl group, which is substituted or unsubstituted, or -NHCO- (C 3-6 alkyl) with a branched C 3-6 alkyl group, which is substituted or unsubstituted, or -NHCONH 2 ,
  • BR is a bridge of the formula -A-B-A- wherein
  • A is substituted phenyl or substituted naphthyl or unsubstituted phenyl or unsubstituted naphthyl
  • B is a bridging -[(CR 6 R 7 ) - (CR 6 V) m - (CR 6" R 7" ) n -
  • R 6 , R 7 , R 6' , R 7' , R 6" , R 7" , R 6'” and R 7'" are independently hydrogen, unsubstituted unbranched C 1-6 alkyl, substituted unbranched Ci.6alkyl, substituted branched C 3-6 alkyl or un substituted branched C 3-6 alkyl, unsubstituted unbranched C 1-6 alkoxy, unsubstituted or substituted phenyl or R 6 and R 7 together or R 6 and R 7 together or R 6 and R 7 together form a five or six membered aliphatic ring, or
  • B is a bridging sulphon, or B is a bridging sulphonamide or
  • B is a bridging carboxamide
  • B is a bridging , and the compounds of the formula (I) bear 1, 2 or 3 sulpho groups.
  • R 1 and R 9 are unsubstituted unbranched C 1-6 alkyl or unsubstituted branched C 3-6 alkyl or substituted unbranched C 1-6 alkyl or substituted branched C 3-6 alkyl,
  • R 3 and R 8 are hydrogen, unsubstituted unbranched C 1-6 alkyl or unsubstituted branched C 3-6 alkyl or substituted unbranched C 1-6 alkyl or substituted branched C3-6alkyl or unsubstituted unbranched C 1-6 alkoxy or unsubstituted branched C 3-6 alkoxy or substituted unbranched C 1-6 alkoxy or substituted branched C 3-6 alkoxy,
  • BR is a bridge of the formula -A-B-A- wherein
  • A is substituted phenyl or substituted naphthyl or unsubstituted phenyl or unsubstituted naphthyl
  • B is a bridging -[(CR 6 R 7 ) - (CR 6 V) m - (CR 6" R 7" ) n -
  • R 6 , R 7 , R 6' , R 7' , R 6" , R 7" , R 6'” and R 7'" are independently hydrogen, unsubstituted unbranched C 1-6 alkyl, substituted unbranched C 1-6 alkyl, substituted branched C3-6alkyl or un substituted branched C3-6alkyl, unsubstituted unbranched Ci_6alkoxy, unsubstituted or substituted phenyl or R 6 and R 7 together or R 6 and R 7 together or R 6 and R 7 together or R 6 and R 7 together form a five or six membered aliphatic ring, or
  • B is a bridging sulphon, or B is a bridging sulphonamide or
  • B is a bridging carboxamide
  • the preferably 1 , 2 or 3 sulpho groups are preferably the further substituents or the substituents on the radicals R 1 , R 2 , R 9 and R 10 .
  • these 1, 2 or 3 sulpho groups are attached to aryl moieties of the radicals R 1 , R 2 , R 9 and R 10 if aryl moieties are present in the radicals R 1 , R 2 , R 9 and R 10 . More preferred these 1, 2 or 3 sulpho groups are located on the radicals R 2 and/or R 10 .
  • the preferred compounds of the formula (I) bear 2 sulpho groups.
  • Aryl is preferably substituted phenyl or substituted naphthyl or unsubstituted phenyl or unsubstituted naphthyl.
  • the substituted aryl groups are preferably substituted by nitro or sulpho groups. Particular preference is given to sulpho groups as substituents on the aryl groups.
  • the preferred -CH2-phenylen groups are substituted, preferably by nitro groups and/or sulpho groups, a sulpho group being very particularly preferred as a substituent for the preferred -CH 2 -phenyl groups.
  • the branched C3-6alkyl groups or unbranched Ci_6alkyl groups and the unbranched Ci_6alkoxy groups or branched C3-6alkoxy groups can be further substituted with hydroxy groups or cyano groups.
  • the alkyl groups and/or the alkoxy groups are not further substituted.
  • the preferred alkyl groups and the preferred alkoxy groups are methyl, ethyl, propyl, methoxy and ethoxy groups. Methyl, ethyl and methoxy groups are very particularly preferred.
  • the particularly preferred bridges have the structures (H-I) or (II-2) or (II-3) or (II-4) or (II-5)::
  • R 4 , R 4' , R 5 and R 5' are independently hydrogen, unsubstituted unbranched C 1-6 alkyl or unsubstituted branched C 3-6 alkyl or substituted unbranched C 1-6 alkyl or substituted branched C 3-6 alkyl or unsubstituted unbranched C 1-6 alkoxy or unsubstituted branched C 3-6 alkoxy or substituted unbranched C 1-6 alkoxy or substituted branched C 3-6 alkoxy, or halogen or -NHCO-(C 3-6 alkyl) with an unbranched C 1-6 alkyl group, which is substituted or unsubstituted, or -NHCO-(C 3-6 alkyl) with a branched C 3-6 alkyl group, which is substituted or unsubstituted, or -NHCONH 2
  • R 7" , R 6'" and R 7'" are independently hydrogen, unsubstituted unbranched C 1-6 alkyl, unsubstituted unbranched C 1-6 alkoxy, unsubstituted or substituted phenyl, or R 6 and R 7 together or R 6 and R 7 together or R 6 and R 7 together form a five or six membered aliphatic ring, or m, n and o have the meaning of 1 or O.
  • the bridge structure (II-3) are the preferred bridge BR.
  • m is 1, n and o are each 0 and have the following structure (II-3')
  • R 4' , R 5' , R 4 , R 5 , R 6 , R 7 , R 6' and R 7' have the meaning as described above.
  • R 4' and R 5' are hydrogen and R 4 and R 5 are independently hydrogen, unsubstituted unbranched C 1-6 alkyl or unsubstituted branched C 3-6 alkyl, or substituted unbranched C 1-6 alkyl or substituted branched C 3-6 alkyl or unsubstituted unbranched C 1- 6 alkoxy or unsubstituted branched C 3-6 alkoxy or substituted unbranched C 1-6 alkoxy or substituted branched C 3-6 alkoxy.
  • R 4 , R 5 , R 4 and R 5 are each hydrogen.
  • R 6 , R 7 , R 6' , R 7' , R 6" , R 7" , R 6'” and R 7'" are independently hydrogen or methyl or ethyl or phenyl. Most preferably R 6 , R 7 , R 6 and R 7 are each hydrogen (and m is 1, n and o are each 0).
  • the invention also provides a process for preparing compounds of the formula (I).
  • the present invention's compounds of the formula (I) can be prepared under conventional conditions in conventional processes.
  • the statistical mixture of the different possible compounds will result in such a reaction procedure, wherein the diamin (II) is bis-diazotized and then reacted with the mixture of the compounds of the formulae (Ilia) and (HIb).
  • the compound of the formula (Ilia) may consist of a mixture of the compounds (HIa') and (HIa"), e.g. 15 weight-% of the compound of the formula (HIa') and 85 weight-% of the compound of the formula (HIa")
  • the particular diamine is cooled to 0-1O 0 C or preferably to 0-5 0 C and diazotized by adding nitrosylsulphuric acid or sodium nitrite. Afterwards, the bis- diazotized diamine is allowed to react with the compound (Ilia) or with the compound (HIb), preferably in aqueous solution.
  • the dyes of the formula (I) can be isolated from the reaction medium by conventional processes, for example by salting out with an alkali metal salt, filtering and drying, if appropriate under reduced pressure and at elevated temperature.
  • the dyes of the formula (I) can be obtained as free acid, as salt or as mixed salt which contains for example one or more cations selected from alkali metal ions, for example the sodium ion, or an ammonium ion or alkylammonium cation, for example mono-, di- or trimethyl- or -ethylammonium cations.
  • the dye can be converted by conventional techniques from the free acid into a salt or into a mixed salt or vice versa or from one salt form into another. If desired, the dyes can be further purified by diafiltration, in which case unwanted salts and synthesis by-products are separated from the crude anionic dye.
  • the removal of unwanted salts and synthesis by-products and partial removal of water from the crude dye solution is carried out by means of a semipermeable membrane by applying a pressure whereby the dye is obtained without the unwanted salts and synthesis by-products as a solution and if necessary as a solid body in a conventional manner.
  • the dyes of the formula (I) and their salts are particularly suitable for dyeing or printing fibrous material consisting of natural or synthetic polyamides in yellow to violet shades.
  • the dyes of the formula (I) and their salts are suitable for producing InkJet printing inks and for using these InkJet printing inks to print fibrous material which consists of natural or synthetic polyamides or cellulose (paper for example).
  • the invention accordingly provides from another aspect for the use of the dyes of the formula (I), their salts and mixtures for dyeing and/or printing fibrous materials consisting of natural or synthetic polyamides.
  • a further aspect is the production of InkJet printing inks and their use for printing fibrous materials consisting of natural or synthetic polyamides.
  • Dyeing is carried out as per known processes, see for example the dyeing processes described in Ullmanns Encyklopadie der ischen Chemie, 4th Edition, 1982, Volume 22, pages 658-673 or in the book by M. Peter and H. K. Rouette, Kunststoffn der Textilveredlung, 13th Edition, 1989, pages 535-556 and 566-574. Preference is given to dyeing in the exhaust process at a temperature of 30 to 140 0 C, more preferably 80 to 120 0 C and most preferably at a temperature of 80 to 100 0 C, and at a liquor ratio in the range from 3:1 to 40:1.
  • the substrate to be dyed can be present in the form of yarn, woven fabric, loop- formingly knitted fabric or carpet for example. Fully fashioned dyeings are even permanently possible on delicate substrates, examples being lambswool, cashmere, alpaca and mohair.
  • the dyes of the invention are particularly useful for dyeing fine- denier fibres (micro fibres).
  • the dyes according to the present invention and their salts are highly compatible with known acid dyes. Accordingly, the dyes of the formula (I), their salts or mixtures can be used alone in a dyeing or printing process or else as a component in a combination shade dyeing or printing composition together with other acid dyes of the same class, i.e. with acid dyes possessing comparable dyeing properties, such as for example fastness properties and exhaustion rates from the dyebath onto the substrate.
  • the dyes of the present invention can be used in particular together with certain other dyes having suitable chromophores. The ratio in which the dyes are present in a combination shade dyeing or printing composition is dictated by the hue to be obtained.
  • novel dyes of the formula (I), as stated above, are very useful for dyeing natural and synthetic polyamides, i.e. wool, silk and all nylon types, on each of which dyeings having a high fastness level, especially good light fastness and good wet fastnesses (washing, alkaline perspiration) are obtained.
  • the dyes of the formula (I) and their salts have a high rate of exhaustion.
  • the ability of the dyes of the formula (I) and their salt to build up is likewise very good.
  • On-tone dyeings on the identified substrates are of outstanding quality. All dyeings moreover have a constant hue under artificial light. Furthermore, the fastness to decating and boiling is good.
  • novel dyes are metal free and provide very level dyeings.
  • the compounds according to the invention can be used as an individual dye or else, owing to their good compatibility, as a combination element with other dyes of the same class having comparable dyeing properties, for example with regard to general fastnesses, exhaustion value, etc.
  • the combination shade dyeings obtained have similar fastnesses to dyeings with the individual dye.
  • the invention's dyes of the formula (I) can also be used as red components in trichromatic dyeing or printing.
  • Trichromatic dyeing or printing can utilize all customary and known dyeing and printing processes, such as for example the continuous process, exhaustion process, foam dyeing process and Ink- Jet process.
  • composition of the individual dye components in the trichromatic dye mixture used in the process of the invention depends on the desired hue.
  • a brown hue for example preferably utilizes 20 - 40% by weight of a yellow component, 40 - 60% by weight of the invention's orange or red component and 10 - 20% by weight of a blue component.
  • the orange component as described above, can consist of a single component or of a mixture of different orange individual components conforming to the formula (I). Preference is given to double and triple combinations.
  • Examples 2-28 The tables I and II which follow contain dyes which can be prepared similarly to the method described in Example 1 by using the corresponding starting materials. These dyes provide orange dyeings having very good light and wet fastnesses on polyamide fibres and wool.
  • a dyebath at 40 0 C consisting of 2000 parts of water, 1 part of a weakly cation-active levelling agent which is based on an ethoxylated aminopropyl fatty acid amide and which has affinity for dye, 0.25 part of the dye of Preparation Example 1 and adjusted to pH 5 with 1-2 parts of 40% acetic acid is entered with 100 parts of nylon-6 fabric. After 10 minutes at 40 0 C, the dyebath is heated to 98°C at a rate of 1°C per minute and then left at the boil for 45-60 minutes. Thereafter it is cooled down to 70 0 C over 15 minutes. The dyeing is removed from the bath, rinsed with hot and then with cold water and dried. The result obtained is an orange polyamide dyeing possessing good light and wet fastnesses.
  • a dyebath at 40 0 C consisting of 2000 parts of water, 1 part of a weakly cation-active levelling agent which is based on an ethoxylated aminopropyl fatty acid amide and which has affinity for dye, 0.3 part of the dye of Preparation Example 1 and adjusted to pH 5.5 with 1-2 parts of 40% acetic acid is entered with 100 parts of nylon-6, 6 fabric.
  • the dyebath is heated to 120 0 C at a rate of 1.5°C per minute and then left at this temperature for 15-25 minutes. Thereafter it is cooled down to 70 0 C over 25 minutes.
  • the dyeing is removed from the dyebath, rinsed with hot and then with cold water and dried. The result obtained is an orange polyamide dyeing with good levelness and having good light and wet fastnesses.
  • a dyebath at 40 0 C consisting of 4000 parts of water, 1 part of a weakly amphoteric levelling agent which is based on a sulphated, ethoxylated fatty acid amide and which has affinity for dye, 0.4 part of the dye of Preparation Example 1 and adjusted to pH 5 with 1-2 parts of 40% acetic acid is entered with 100 parts of wool fabric.
  • the dyebath is heated to boiling at a rate of 1°C per minute and then left at the boil for 40- 60 minutes. Thereafter it is cooled down to 70 0 C over 20 minutes.
  • the dyeing is removed from the bath, rinsed with hot and then with cold water and dried. The result obtained is an orange wool dyeing possessing good light and wet fastnesses.
  • the material thus impregnated is rolled up and left to dwell in a steaming chamber under saturated steam conditions at 85-98°C for 3-6 hours for fixation.
  • the dyeing is then rinsed with hot and cold water and dried.
  • the result obtained is an orange nylon dyeing having good levelness in the piece and good light and wet fastnesses.
  • a textile cut pile sheet material composed of nylon-6 and having a synthetic base fabric is padded with a liquor containing per 1000 parts
  • the print is fixed for 6 minutes in saturated steam at 100 0 C, rinsed and dried.
  • the result obtained is a level-coloured cover material having an orange and white pattern.
  • a dyebath at 40 0 C consisting of 2000 parts of water, 1 part of a weakly cation-active levelling agent which is based on an ethoxylated aminopropyl fatty acid amide and has affinity for dye, 0.2 part of the dye of Example 1, 1.5 parts of a commercially available preparation of C.I. Acid Yellow 236 (Nylosan Yellow F-L) and 0.5 part of the blue dye of Preparation Example 46 of the patent application WO99/51681 and EP1066340 Bl:
  • 100 parts of a chrome-tanned and synthetically retanned shave-moist grain leather are dyed for 30 minutes in a bath of 300 parts of water and 2 parts of the dye of Preparation Example 1 at 55°C.
  • the leather is fatliquored for 45 minutes. It is then acidified with 8.5% formic acid and milled for 10 minutes (final pH in the bath 3.5-4.0).
  • the leather is then rinsed, allowed to drip dry and finished as usual.
  • the result obtained is a leather dyed in a level clear orange hue with good fastnesses.
  • Use Example H can also be carried out with dyes 1 or 2 and 4 to 140 with similar results.
  • a dyebath consisting of 1000 parts of water, 80 parts of calcined Glauber salt, 1 part of sodium nitrobenzene-3-sulphonate and 1 part of dye from Example 79 is heated to 80 0 C in the course of 10 minutes. Then, 100 parts of mercerized cotton are added. This is followed by dyeing at 80 0 C for 5 minutes and then heating to 95°C in the course of 15 minutes. After 10 minutes at 95°C, 3 parts of sodium carbonate are added, followed by a further 7 parts of sodium carbonate after 20 minutes and another 10 parts of sodium carbonate after 30 minutes at 95°C. Dyeing is subsequently continued at 95°C for 60 minutes. The dyed material is then removed from the dyebath and rinsed in running demineralized water for 3 minutes.

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Coloring (AREA)
  • Inks, Pencil-Leads, Or Crayons (AREA)
  • Ink Jet Recording Methods And Recording Media Thereof (AREA)
  • Ink Jet (AREA)
  • Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)

Abstract

Compounds of the general formula (I) whereby the substituents are defined in claim 1, a process for their preparation and their use for dyeing and/or printing organic substrates.

Description

Acid dyes
The invention relates to novel acid dyes, a process for their preparation and their use for dyeing organic substrates.
Acid dyes are known and dyes with bridging members are known as well. However, there is still a need for acid dyes with improved properties.
The invention provides compounds of the general formula (I)
Figure imgf000002_0001
where
R1, R2, R9 and R10 are independently unsubstituted unbranched C1-6alkyl or unsubstituted branched C3-6alkyl or substituted unbranched C1-6alkyl or substituted branched C3-6alkyl, or aryl, or -(CH2)p-aryl where p =1, 2, 3 or 4,
R3 and R8 is hydrogen, unsubstituted unbranched C1-6alkyl or unsubstituted branched C3-6alkyl or substituted unbranched C1-6alkyl or substituted branched C3-6alkyl or unsubstituted unbranched C1-6alkoxy or unsubstituted branched C3-6alkoxy or substituted unbranched C1-6alkoxy or substituted branched C3-6alkoxy, or halogen, or -NHCO-( C1-6alkyl) with an unbranched C1-6alkyl group, which is substituted or unsubstituted, or -NHCO- (C3-6alkyl) with a branched C3-6alkyl group, which is substituted or unsubstituted, or -NHCONH2,
BR is a bridge of the formula -A-B-A- wherein
A is substituted phenyl or substituted naphthyl or unsubstituted phenyl or unsubstituted naphthyl, and B is a bridging -[(CR6R7) - (CR6 V)m - (CR6"R7")n -
(CR6 R7 )o ]- where m, n and o have the meaning of 1 or 0, and R6, R7, R6', R7', R6", R7", R6'" and R7'" are independently hydrogen, unsubstituted unbranched C1-6alkyl, substituted unbranched Ci.6alkyl, substituted branched C3-6alkyl or un substituted branched C3-6alkyl, unsubstituted unbranched C1-6alkoxy, unsubstituted or substituted phenyl or R6 and R7 together or R6 and R7 together or R6 and R7 together or R6 and R7 together form a five or six membered aliphatic ring, or
B is a bridging sulphon, or B is a bridging sulphonamide or
B is a bridging carboxamide or
B is a bridging
Figure imgf000003_0001
, and the compounds of the formula (I) bear 1, 2 or 3 sulpho groups.
referred compounds of the general formula (I)
R1 and R9 are unsubstituted unbranched C1-6alkyl or unsubstituted branched C3-6alkyl or substituted unbranched C1-6alkyl or substituted branched C3-6alkyl,
R2 and R10 are aryl, or -(CH2)p-aryl where p = 1, 2, 3, or 4,
R3 and R8 are hydrogen, unsubstituted unbranched C1-6alkyl or unsubstituted branched C3-6alkyl or substituted unbranched C1-6alkyl or substituted branched C3-6alkyl or unsubstituted unbranched C1-6alkoxy or unsubstituted branched C3-6alkoxy or substituted unbranched C1-6alkoxy or substituted branched C3-6alkoxy, BR is a bridge of the formula -A-B-A- wherein
A is substituted phenyl or substituted naphthyl or unsubstituted phenyl or unsubstituted naphthyl, and B is a bridging -[(CR6R7) - (CR6 V)m - (CR6"R7")n -
(CR6 R7 )o ]- where m, n and o have the meaning of 1 or 0, and R6, R7, R6', R7', R6", R7", R6'" and R7'" are independently hydrogen, unsubstituted unbranched C1-6alkyl, substituted unbranched C1-6alkyl, substituted branched C3-6alkyl or un substituted branched C3-6alkyl, unsubstituted unbranched Ci_6alkoxy, unsubstituted or substituted phenyl or R6 and R7 together or R6 and R7 together or R6 and R7 together or R6 and R7 together form a five or six membered aliphatic ring, or
B is a bridging sulphon, or B is a bridging sulphonamide or
B is a bridging carboxamide or
B is a bridging
Figure imgf000004_0001
The preferably 1 , 2 or 3 sulpho groups are preferably the further substituents or the substituents on the radicals R1, R2, R9 and R10. By preference these 1, 2 or 3 sulpho groups are attached to aryl moieties of the radicals R1, R2, R9 and R10 if aryl moieties are present in the radicals R1, R2, R9 and R10. More preferred these 1, 2 or 3 sulpho groups are located on the radicals R2 and/or R10. In the preferred compounds of the formula (I) there are no anionic substituents in the bridge member BR.
The preferred compounds of the formula (I) bear 2 sulpho groups.
Aryl is preferably substituted phenyl or substituted naphthyl or unsubstituted phenyl or unsubstituted naphthyl. The substituted aryl groups are preferably substituted by nitro or sulpho groups. Particular preference is given to sulpho groups as substituents on the aryl groups.
Very particular preference is further given to compounds of the formula (I) wherein R2 and/or R10 are substituted or unsubstituted -(CH2)p-phenyl or substituted or unsubstituted -(CH2)p-naphthyl where p = 1, 2, 3 or 4, preferrably p is 1 or 2 and of which a -CH2-phenyl group is very particularly preferred. The preferred -CH2-phenylen groups are substituted, preferably by nitro groups and/or sulpho groups, a sulpho group being very particularly preferred as a substituent for the preferred -CH2-phenyl groups.
Particularity preferred -CH2-phenyl groups have the following formula
Figure imgf000005_0001
The branched C3-6alkyl groups or unbranched Ci_6alkyl groups and the unbranched Ci_6alkoxy groups or branched C3-6alkoxy groups can be further substituted with hydroxy groups or cyano groups. Preferably the alkyl groups and/or the alkoxy groups are not further substituted.
In the preferred compounds of the formula (I) the preferred alkyl groups and the preferred alkoxy groups are methyl, ethyl, propyl, methoxy and ethoxy groups. Methyl, ethyl and methoxy groups are very particularly preferred.
In the preferred compounds of the formula (I), the particularly preferred bridges have the structures (H-I) or (II-2) or (II-3) or (II-4) or (II-5)::
Figure imgf000005_0002
or
Figure imgf000006_0001
or
Figure imgf000006_0002
or
Figure imgf000006_0003
or
Figure imgf000006_0004
wherein
R4, R4', R5 and R5' are independently hydrogen, unsubstituted unbranched C1-6alkyl or unsubstituted branched C3-6alkyl or substituted unbranched C1-6alkyl or substituted branched C3-6alkyl or unsubstituted unbranched C1-6alkoxy or unsubstituted branched C3-6alkoxy or substituted unbranched C1-6alkoxy or substituted branched C3-6alkoxy, or halogen or -NHCO-(C3-6alkyl) with an unbranched C1-6alkyl group, which is substituted or unsubstituted, or -NHCO-(C3-6alkyl) with a branched C3-6alkyl group, which is substituted or unsubstituted, or -NHCONH2
R6, R7 ,R6' ,R7' ,R6"
R7", R6'" and R7'" are independently hydrogen, unsubstituted unbranched C1-6alkyl, unsubstituted unbranched C1-6alkoxy, unsubstituted or substituted phenyl, or R6 and R7 together or R6 and R7 together or R6 and R7 together or R6 and R7 together form a five or six membered aliphatic ring, or m, n and o have the meaning of 1 or O.
From the bridge structures (II- 1) or (II-2) or (II-3) or (II-4), the bridge structure (II-3) are the preferred bridge BR. In the prefeerredstructure (II-3) m is 1, n and o are each 0 and have the following structure (II-3')
Figure imgf000007_0001
wherein R4' , R5' , R4, R5, R6, R7, R6' and R7' have the meaning as described above.
Preferably R4' and R5' are hydrogen and R4 and R5 are independently hydrogen, unsubstituted unbranched C1-6alkyl or unsubstituted branched C3-6alkyl, or substituted unbranched C1-6alkyl or substituted branched C3-6alkyl or unsubstituted unbranched C1- 6alkoxy or unsubstituted branched C3-6alkoxy or substituted unbranched C1-6alkoxy or substituted branched C3-6alkoxy. Most preferably R4 , R5 , R4 and R5 are each hydrogen. Preferably R6, R7, R6', R7', R6", R7", R6'" and R7'" are independently hydrogen or methyl or ethyl or phenyl. Most preferably R6, R7, R6 and R7 are each hydrogen (and m is 1, n and o are each 0).
The invention also provides a process for preparing compounds of the formula (I). The present invention's compounds of the formula (I) can be prepared under conventional conditions in conventional processes.
In these processes, both the amine functions of compounds of the formula (II)
Figure imgf000008_0002
which are known from the literature are conventionally diazotized and coupled onto totally two equivalents of a compound of the formula (Ilia) and of a compound of the formula (HIb)
Figure imgf000008_0001
where the substituents are each as defined above an the sum of the compound of the formula (Ilia) and of the compound of the formula (HIb) is two equivalents.
It should be clear to a person skilled in the art, that the statistical mixture of the different possible compounds will result in such a reaction procedure, wherein the diamin (II) is bis-diazotized and then reacted with the mixture of the compounds of the formulae (Ilia) and (HIb). Furthermore, in case that one of the components (Ilia) and/or (HIb) comprises position isomers it should be clear to a person skilled in the art, that this would result as well to the statistical mixture of the additional different possible compounds. As an example, the compound of the formula (Ilia) may consist of a mixture of the compounds (HIa') and (HIa"), e.g. 15 weight-% of the compound of the formula (HIa') and 85 weight-% of the compound of the formula (HIa")
Figure imgf000009_0001
In these processes, the particular diamine is cooled to 0-1O0C or preferably to 0-50C and diazotized by adding nitrosylsulphuric acid or sodium nitrite. Afterwards, the bis- diazotized diamine is allowed to react with the compound (Ilia) or with the compound (HIb), preferably in aqueous solution.
The dyes of the formula (I) can be isolated from the reaction medium by conventional processes, for example by salting out with an alkali metal salt, filtering and drying, if appropriate under reduced pressure and at elevated temperature.
Depending on the reaction and/or isolation conditions, the dyes of the formula (I) can be obtained as free acid, as salt or as mixed salt which contains for example one or more cations selected from alkali metal ions, for example the sodium ion, or an ammonium ion or alkylammonium cation, for example mono-, di- or trimethyl- or -ethylammonium cations. The dye can be converted by conventional techniques from the free acid into a salt or into a mixed salt or vice versa or from one salt form into another. If desired, the dyes can be further purified by diafiltration, in which case unwanted salts and synthesis by-products are separated from the crude anionic dye.
The removal of unwanted salts and synthesis by-products and partial removal of water from the crude dye solution is carried out by means of a semipermeable membrane by applying a pressure whereby the dye is obtained without the unwanted salts and synthesis by-products as a solution and if necessary as a solid body in a conventional manner. The dyes of the formula (I) and their salts are particularly suitable for dyeing or printing fibrous material consisting of natural or synthetic polyamides in yellow to violet shades. The dyes of the formula (I) and their salts are suitable for producing InkJet printing inks and for using these InkJet printing inks to print fibrous material which consists of natural or synthetic polyamides or cellulose (paper for example).
The invention accordingly provides from another aspect for the use of the dyes of the formula (I), their salts and mixtures for dyeing and/or printing fibrous materials consisting of natural or synthetic polyamides. A further aspect is the production of InkJet printing inks and their use for printing fibrous materials consisting of natural or synthetic polyamides.
Dyeing is carried out as per known processes, see for example the dyeing processes described in Ullmanns Encyklopadie der technischen Chemie, 4th Edition, 1982, Volume 22, pages 658-673 or in the book by M. Peter and H. K. Rouette, Grundlagen der Textilveredlung, 13th Edition, 1989, pages 535-556 and 566-574. Preference is given to dyeing in the exhaust process at a temperature of 30 to 1400C, more preferably 80 to 1200C and most preferably at a temperature of 80 to 1000C, and at a liquor ratio in the range from 3:1 to 40:1.
The substrate to be dyed can be present in the form of yarn, woven fabric, loop- formingly knitted fabric or carpet for example. Fully fashioned dyeings are even permanently possible on delicate substrates, examples being lambswool, cashmere, alpaca and mohair. The dyes of the invention are particularly useful for dyeing fine- denier fibres (micro fibres).
The dyes according to the present invention and their salts are highly compatible with known acid dyes. Accordingly, the dyes of the formula (I), their salts or mixtures can be used alone in a dyeing or printing process or else as a component in a combination shade dyeing or printing composition together with other acid dyes of the same class, i.e. with acid dyes possessing comparable dyeing properties, such as for example fastness properties and exhaustion rates from the dyebath onto the substrate. The dyes of the present invention can be used in particular together with certain other dyes having suitable chromophores. The ratio in which the dyes are present in a combination shade dyeing or printing composition is dictated by the hue to be obtained.
The novel dyes of the formula (I), as stated above, are very useful for dyeing natural and synthetic polyamides, i.e. wool, silk and all nylon types, on each of which dyeings having a high fastness level, especially good light fastness and good wet fastnesses (washing, alkaline perspiration) are obtained. The dyes of the formula (I) and their salts have a high rate of exhaustion. The ability of the dyes of the formula (I) and their salt to build up is likewise very good. On-tone dyeings on the identified substrates are of outstanding quality. All dyeings moreover have a constant hue under artificial light. Furthermore, the fastness to decating and boiling is good.
One decisive advantage of the novel dyes is that they are metal free and provide very level dyeings.
The compounds according to the invention can be used as an individual dye or else, owing to their good compatibility, as a combination element with other dyes of the same class having comparable dyeing properties, for example with regard to general fastnesses, exhaustion value, etc. The combination shade dyeings obtained have similar fastnesses to dyeings with the individual dye.
The invention's dyes of the formula (I) can also be used as red components in trichromatic dyeing or printing. Trichromatic dyeing or printing can utilize all customary and known dyeing and printing processes, such as for example the continuous process, exhaustion process, foam dyeing process and Ink- Jet process.
The composition of the individual dye components in the trichromatic dye mixture used in the process of the invention depends on the desired hue. A brown hue for example preferably utilizes 20 - 40% by weight of a yellow component, 40 - 60% by weight of the invention's orange or red component and 10 - 20% by weight of a blue component. The orange component, as described above, can consist of a single component or of a mixture of different orange individual components conforming to the formula (I). Preference is given to double and triple combinations.
Particularly preferred blue and/or yellow components are described in WO2002/46318.
In the examples which follow, parts and percentages are by weight and temperatures are reported in degrees Celsius.
Preparation Example 1
29.1 parts of 3-[(ethylphenylamino)methyl]benzenesulphonic acid were suspended in 200 parts of water and dissolved by adding a small amount of sodium hydroxide solution (approx. 30% strength) at a pH 7-7.5. This solution was then admixed with a bis-diazonium salt solution prepared in a conventional manner from 43.0 parts of 1,2- (4,4'-diamino diphenyl) ethane and 50 parts by volume of 4N sodium nitrite solution at 0-50C. The pH is held at 7.0-7.5 by metered addition of 15% sodium carbonate solution. After coupling had ended, the resulting dye of the formula
Figure imgf000012_0001
is salted out with sodium chloride, filtered off and dried at 500C under reduced pressure. On wool and in particular on polyamide fibres it produces orange dyeings having very good light and wet fastness properties (lamda(max) (λmax ) = 482 nm).
Examples 2-28 The tables I and II which follow contain dyes which can be prepared similarly to the method described in Example 1 by using the corresponding starting materials. These dyes provide orange dyeings having very good light and wet fastnesses on polyamide fibres and wool.
Figure imgf000013_0001
Figure imgf000014_0001
Figure imgf000015_0001
Figure imgf000016_0001
Figure imgf000017_0001
Figure imgf000018_0001
Figure imgf000019_0001
Figure imgf000020_0001
Figure imgf000021_0001
Figure imgf000022_0001
Figure imgf000023_0001
Figure imgf000024_0001
Figure imgf000025_0001
Figure imgf000026_0001
Figure imgf000027_0001
Figure imgf000028_0001
Figure imgf000029_0001
Figure imgf000030_0001
Figure imgf000031_0001
Figure imgf000031_0002
Figure imgf000032_0001
Figure imgf000033_0001
Figure imgf000034_0001
Figure imgf000035_0001
Figure imgf000036_0001
USE EXAMPLE A
A dyebath at 400C, consisting of 2000 parts of water, 1 part of a weakly cation-active levelling agent which is based on an ethoxylated aminopropyl fatty acid amide and which has affinity for dye, 0.25 part of the dye of Preparation Example 1 and adjusted to pH 5 with 1-2 parts of 40% acetic acid is entered with 100 parts of nylon-6 fabric. After 10 minutes at 400C, the dyebath is heated to 98°C at a rate of 1°C per minute and then left at the boil for 45-60 minutes. Thereafter it is cooled down to 700C over 15 minutes. The dyeing is removed from the bath, rinsed with hot and then with cold water and dried. The result obtained is an orange polyamide dyeing possessing good light and wet fastnesses.
USE EXAMPLE B
A dyebath at 400C, consisting of 2000 parts of water, 1 part of a weakly cation-active levelling agent which is based on an ethoxylated aminopropyl fatty acid amide and which has affinity for dye, 0.3 part of the dye of Preparation Example 1 and adjusted to pH 5.5 with 1-2 parts of 40% acetic acid is entered with 100 parts of nylon-6, 6 fabric. After 10 minutes at 400C, the dyebath is heated to 1200C at a rate of 1.5°C per minute and then left at this temperature for 15-25 minutes. Thereafter it is cooled down to 700C over 25 minutes. The dyeing is removed from the dyebath, rinsed with hot and then with cold water and dried. The result obtained is an orange polyamide dyeing with good levelness and having good light and wet fastnesses.
USE EXAMPLE C
A dyebath at 400C, consisting of 4000 parts of water, 1 part of a weakly amphoteric levelling agent which is based on a sulphated, ethoxylated fatty acid amide and which has affinity for dye, 0.4 part of the dye of Preparation Example 1 and adjusted to pH 5 with 1-2 parts of 40% acetic acid is entered with 100 parts of wool fabric. After 10 minutes at 400C, the dyebath is heated to boiling at a rate of 1°C per minute and then left at the boil for 40- 60 minutes. Thereafter it is cooled down to 700C over 20 minutes. The dyeing is removed from the bath, rinsed with hot and then with cold water and dried. The result obtained is an orange wool dyeing possessing good light and wet fastnesses.
USE EXAMPLE D
100 parts of a woven nylon-6 material are padded with a 500C liquor consisting of
40 parts of the dye of Preparation Example 1,
100 parts of urea,
20 parts of a nonionic solubilizer based on butyldiglycol,
15-20 parts of acetic acid (to adjust the pH to 4),
10 parts of a weakly cation-active levelling agent which is based on an ethoxylated aminopropyl fatty acid amide and has affinity for dye, and 810-815 parts of water (to make up to 1000 parts of padding liquor).
The material thus impregnated is rolled up and left to dwell in a steaming chamber under saturated steam conditions at 85-98°C for 3-6 hours for fixation. The dyeing is then rinsed with hot and cold water and dried. The result obtained is an orange nylon dyeing having good levelness in the piece and good light and wet fastnesses.
USE EXAMPLE E
A textile cut pile sheet material composed of nylon-6 and having a synthetic base fabric is padded with a liquor containing per 1000 parts
1 part of dye of Preparation Example 1
4 parts of a commercially available thickener based on carob flour ether
2 parts of a nonionic ethylene oxide adduct of a higher alkylphenol 1 part of 60% acetic acid. This is followed by printing with a paste which per 1000 parts contains the following components:
20 parts of commercially available alkoxylated fatty alkylamine (displace product) 20 parts of a commercially available thickener based on carob flour ether.
The print is fixed for 6 minutes in saturated steam at 1000C, rinsed and dried. The result obtained is a level-coloured cover material having an orange and white pattern.
USE EXAMPLE F
A dyebath at 400C consisting of 2000 parts of water, 1 part of a weakly cation-active levelling agent which is based on an ethoxylated aminopropyl fatty acid amide and has affinity for dye, 0.2 part of the dye of Example 1, 1.5 parts of a commercially available preparation of C.I. Acid Yellow 236 (Nylosan Yellow F-L) and 0.5 part of the blue dye of Preparation Example 46 of the patent application WO99/51681 and EP1066340 Bl:
Figure imgf000039_0001
Preparation Example 46 of the patent application WO99/51681 and EP 1066340 Bl,
which is adjusted to pH 5 with 1-2 parts of 40% acetic acid is entered with 100 parts of woven nylon-6,6 fabric. After 10 minutes at 400C, the dyebath is heated to 98°C at a rate of 1°C per minute and then left at the boil for 45 to 60 minutes. This is followed by cooling down to 700C over 15 minutes. The dyeing is removed from the bath, rinsed with hot and then with cold water and dried. The result obtained is a level grey polyamide dyeing having good light and wet fastnesses. USE EXAMPLE G
100 parts of a chrome-tanned and synthetically retanned shave-moist grain leather are dyed for 30 minutes in a bath of 300 parts of water and 2 parts of the dye of Preparation Example 1 at 55°C. After addition of 4 parts of a 60% emulsion of a sulphited fish oil, the leather is fatliquored for 45 minutes. It is then acidified with 8.5% formic acid and milled for 10 minutes (final pH in the bath 3.5-4.0). The leather is then rinsed, allowed to drip dry and finished as usual. The result obtained is a leather dyed in a level clear orange hue with good fastnesses.
Use Examples A to G can also be carried out with dyes 2 to 140 with similar results.
USE EXAMPLE H
3 parts of the dye of Preparation Example 3 are dissolved in 82 parts of demineralized water and 15 parts of diethylene glycol at 600C. Cooling down to room temperature gives an orange printing ink which is very highly suitable for ink jet printing on paper or polyamide and wool textiles.
Use Example H can also be carried out with dyes 1 or 2 and 4 to 140 with similar results.
USE EXAMPLE I
A dyebath consisting of 1000 parts of water, 80 parts of calcined Glauber salt, 1 part of sodium nitrobenzene-3-sulphonate and 1 part of dye from Example 79 is heated to 800C in the course of 10 minutes. Then, 100 parts of mercerized cotton are added. This is followed by dyeing at 800C for 5 minutes and then heating to 95°C in the course of 15 minutes. After 10 minutes at 95°C, 3 parts of sodium carbonate are added, followed by a further 7 parts of sodium carbonate after 20 minutes and another 10 parts of sodium carbonate after 30 minutes at 95°C. Dyeing is subsequently continued at 95°C for 60 minutes. The dyed material is then removed from the dyebath and rinsed in running demineralized water for 3 minutes. This is followed by two washes for 10 minutes in 5000 parts of boiling demineralized water at a time and subsequent rinsing in running demineralized water at 600C for 3 minutes and with cold tap water for one minute. Drying leaves a brilliant orange cotton dyeing having good fastnesses.
USE EXAMPLE J
0.2 part of the dye of Preparation Example 1 is dissolved in 100 parts of hot water and the solution is cooled down to room temperature. This solution is added to 100 parts of chemically bleached sulphite pulp beaten in 2000 parts of water in a Hollander. After 15 minutes of commixing the stuff is sized with resin size and aluminium sulphate in a conventional manner. Paper produced from this stuff has an orange shade with good wet fastnesses.
Use Examples I and J can also be carried out with dyes 1 to 140 with similar results.

Claims

1. Compounds of the general formula (I)
Figure imgf000042_0001
where
R1, R2, R9 and R10 are independently unsubstituted unbranched C1-6alkyl or unsubstituted branched C3-6alkyl or substituted unbranched C1-6alkyl or substituted branched C3-6alkyl, or aryl, or -(CH2)p-aryl where p = 1, 2, 3 or 4,
R3 and R8 is hydrogen, unsubstituted unbranched C1-6alkyl or unsubstituted branched C3-6alkyl or substituted unbranched C1-6alkyl or substituted branched C3-6alkyl or unsubstituted unbranched C1-6alkoxy or unsubstituted branched C3-6alkoxy or substituted unbranched C1-6alkoxy or substituted branched C3-6alkoxy, or halogen, or -NHCO-(C 1-6alkyl) with an unbranched C1-6alkyl group, which is substituted or unsubstituted, or -NHCO-(C3_6alkyl) with a branched C3-6alkyl group, which is substituted or unsubstituted, or -NHCONH2,
BR is a bridge of the formula -A-B-A- wherein
A is substituted phenyl or substituted naphthyl or unsubstituted phenyl or unsubstituted naphthyl, and
B is a bridging -[(CR6R7) - (CR6' R7')m - (CR6"R7")n - (CR6 R7 )o ]- where m, n and o have the meaning of 1 or 0, and R6, R7, R6', R7', R6", R7", R6'" and R7'" are independently hydrogen, unsubstituted unbranched C1-6alkyl, substituted unbranched C1-6alkyl, substituted branched C3-6alkyl or un substituted branched C3-6alkyl, unsubstituted unbranched C1-6alkoxy, unsubstituted or substituted phenyl or R6 and R7 together or R6 and R7 together or R6 and R7 together or R6 and R7 together form a five or six membered aliphatic ring, or
B is a bridging sulphon, or B is a bridging sulphonamide or
B is a bridging carboxamide, or
B is a bridging
Figure imgf000043_0001
and the compounds of the formula (I) bear 1 or 2 or 3 sulpho groups .
2. Compounds according to Claim 1 characterized in that
R1 and R9 are unsubstituted unbranched C1-6alkyl or unsubstituted branched
C3-6alkyl or substituted unbranched C1-6alkyl or substituted branched C3-6alkyl,
R2 and R10 are aryl, or -(CH2)p-aryl where p = 1 , 2, 3 or 4,
R3 and R8 are hydrogen, unsubstituted unbranched C1-6alkyl or unsubstituted branched C3-6alkyl or substituted unbranched C1-6alkyl or substituted branched C3-6alkyl or unsubstituted unbranched C1-6alkoxy or unsubstituted branched C3-6alkoxy or substituted unbranched C1-6alkoxy or substituted branched C3-6alkoxy, BR is a bridge of the formula -A-B-A- wherein
A is substituted phenyl or substituted naphthyl or unsubstituted phenyl or unsubstituted naphthyl, and B is a bridging -[(CR6R7) - (CR6 'R7')m- (CR6"R7")n -
(CR6 R7 )o ]- where m, n and o have the meaning of 1 or 0, and R6, R7, R6', R7', R6", R7", R6'" and R7'" are independently hydrogen, unsubstituted unbranched C1-6alkyl, substituted unbranched C1-6alkyl, substituted branched C3-6alkyl or un substituted branched C3-6alkyl, unsubstituted unbranched C1-6alkoxy, unsubstituted or substituted phenyl or R6 and R7 together or R6 and R7 together or R6 and R7 together or R6 and R7 together form a five or six membered aliphatic ring, or
B is a bridging sulphon, or B is a bridging sulphonamide or
B is a bridging carboxamide, or
B is a bridging
Figure imgf000044_0003
and the compounds of the formula (I) bear 1 or 2 or 3 sulpho groups .
3. Compounds according to Claim 1 or 2 characterized in that the compounds of the formula (I) bear 2 sulpho groups.
4. Compounds according to Claim 1 or 2 or 3 characterized in that the bridges BR of the compounds of the formula (I) have the structures (II- 1) or (II-2) or (II-3) or (II-4) or (II-5):
Figure imgf000044_0001
or
Figure imgf000044_0002
or
Figure imgf000045_0001
or
Figure imgf000045_0002
or
Figure imgf000045_0003
wherein
R4, R4', R5 and R5' are independently hydrogen, unsubstituted unbranched C1-6alkyl or unsubstituted branched C3-6alkyl or substituted unbranched C1- 6alkyl or substituted branched C3-6alkyl or unsubstituted unbranched C1-6alkoxy or unsubstituted branched C3-6alkoxy or substituted unbranched C1-6alkoxy or substituted branched C3-6alkoxy, or halogen or -NHCO-(C3-6alkyl) with an unbranched C1-6alkyl group, which is substituted or unsubstituted, or -NHCO- (C3-6alkyl) with a branched C3-6alkyl group, which is substituted or unsubstituted, or -NHCONH2 R 6 Tj l τ} 6' Tf T τ> 6" , Xv , Xv , JV , JV ,
R7 , R6 and R7 are independently hydrogen, unsubstituted unbranched Ci_6alkyl, unsubstituted unbranched Ci^allvoxy, unsubstituted or substituted phenyl, or R6 and R7 together or R6' and R7' together or R6" and R7" together or R6 and R7 together form a five or six membered aliphatic ring, or m, n and o have the meaning of 1 or 0.
5. Process for preparing compounds of the formula (I) according to Claim 1, characterized in that both the amine functions of the compounds of the formula (II)
Figure imgf000046_0002
are diazotized and coupled onto totally two equivalents of a compound of the formula (Ilia) and of a compound of the formula (HIb)
Figure imgf000046_0001
where the substituents are each as defined above.
6. Use of the compounds of the formula (I) according to Claim 1 for dyeing and/or printing organic substrates.
7. Use of compounds of formula (I) according to Claim 1 for dyeing and/or printing wool, silk and synthetic polyamides.
8. Use of compounds of formula (I) according to Claim 1 for preparing printing inks for the InkJet process.
PCT/EP2007/054581 2006-05-16 2007-05-11 Disazo acid dyes WO2007131957A2 (en)

Priority Applications (12)

Application Number Priority Date Filing Date Title
BRPI0711651A BRPI0711651B1 (en) 2006-05-16 2007-05-11 acid dyes, their preparation process, and their uses
CA002646126A CA2646126A1 (en) 2006-05-16 2007-05-11 Disazo acid dyes
JP2009510424A JP5341750B2 (en) 2006-05-16 2007-05-11 Acid dye
CN2007800178036A CN101448901B (en) 2006-05-16 2007-05-11 Disazo acid dyes
KR1020087027896A KR101340101B1 (en) 2006-05-16 2007-05-11 Disazo acid dyes
US12/300,709 US20090126128A1 (en) 2006-05-16 2007-05-11 Disazo Acid Dyes
MX2008014473A MX2008014473A (en) 2006-05-16 2007-05-11 Disazo acid dyes.
AU2007251589A AU2007251589A1 (en) 2006-05-16 2007-05-11 Disazo acid dyes
ES07729033T ES2397184T3 (en) 2006-05-16 2007-05-11 Disazo acid dyes
EP07729033A EP2027213B1 (en) 2006-05-16 2007-05-11 Disazo acid dyes
NO20084804A NO20084804L (en) 2006-05-16 2008-11-14 Disazosyre colorants
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NO20084804L (en) 2009-02-16
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PT2027213E (en) 2013-02-05
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WO2007131957A3 (en) 2008-02-07
TWI422647B (en) 2014-01-11
CN101448901B (en) 2013-08-21
JP2009538364A (en) 2009-11-05
KR20090010984A (en) 2009-01-30
TW200804534A (en) 2008-01-16
KR101340101B1 (en) 2013-12-10
ES2397184T3 (en) 2013-03-05
US20110203058A1 (en) 2011-08-25
EP2027213A2 (en) 2009-02-25
EP2027213B1 (en) 2012-11-21
AU2007251589A1 (en) 2007-11-22
US8357210B2 (en) 2013-01-22
BRPI0711651A2 (en) 2011-11-29
US20090126128A1 (en) 2009-05-21
CN101448901A (en) 2009-06-03
BRPI0711651B1 (en) 2017-02-21

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