GB681653A - Improvements in azo dye - Google Patents

Improvements in azo dye

Info

Publication number
GB681653A
GB681653A GB3315/51A GB331551A GB681653A GB 681653 A GB681653 A GB 681653A GB 3315/51 A GB3315/51 A GB 3315/51A GB 331551 A GB331551 A GB 331551A GB 681653 A GB681653 A GB 681653A
Authority
GB
United Kingdom
Prior art keywords
naphthol
sulphonamide
wool
nylon
chloride
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
GB3315/51A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
EIDP Inc
Original Assignee
EI Du Pont de Nemours and Co
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
Application filed by EI Du Pont de Nemours and Co filed Critical EI Du Pont de Nemours and Co
Publication of GB681653A publication Critical patent/GB681653A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
    • D06P1/38—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using reactive 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
    • C09B62/503—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 an esterified or non-esterified hydroxyalkyl sulfonyl or mercaptoalkyl sulfonyl group, a quaternised or non-quaternised aminoalkyl sulfonyl group, a heterylmercapto alkyl sulfonyl group, a vinyl sulfonyl or a substituted vinyl sulfonyl group, or a thiophene-dioxide group
    • C09B62/507—Azo dyes
    • C09B62/513—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
    • C09B67/00—Influencing the physical, e.g. the dyeing or printing properties of dyestuffs without chemical reactions, e.g. by treating with solvents grinding or grinding assistants, coating of pigments or dyes; Process features in the making of dyestuff preparations; Dyestuff preparations of a special physical nature, e.g. tablets, films
    • C09B67/0033—Blends of pigments; Mixtured crystals; Solid solutions
    • C09B67/0046—Mixtures of two or more azo 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
    • 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
    • D06P3/58—Material containing hydroxyl groups
    • D06P3/60—Natural or regenerated cellulose
    • D06P3/66—Natural or regenerated cellulose using reactive dyes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Coloring (AREA)

Abstract

2-Naphthol-6-sulphonamide is made by esterifying 2-naphthol-6-sulphonic acid with benzenesulphonyl chloride, converting the sulphonic acid group via the chloride into the amide and hydrolysing the ester. 2-Naphthol-7-sulphonamide is made similarly, using p-toluene-instead of benzene-sulphonyl chloride, and likewise 2 - naphthol - 7 - sulphomethylamide using methylamine to react with the sulphonyl chloride group. 2 : 5 - Dimethoxyaniline - 4 - sulphomethylamide is prepared by acetylating 2 : 5-dimethoxyaniline, treating the product first with chlorosulphonic acid and then with methylamine, and finally hydrolysing the acetylamino group.ALSO:The invention comprises half-chromed azo dyes whose anions are of the formula <FORM:0681653/IV (c)/1> where X is methoxy or ethoxy, Y and Z are hydrogen, sulphonamide, sulphonmethylamide or sulphonethylamide, and Y is in one of the b -positions, which yield blue shades on wool, nylon or wool-nylon mixtures. Black shades are obtained by using them in conjunction with the half-cobalt derivative of 4-nitro-2-aminophenol --> acetoacetanilide or the half-chromed derivative of 4-nitro-2-aminophenol --> b -naphthol. The dyes of the above formula are obtained by chroming the parent dye or its monomethyl or monoethyl ether at 135-160 DEG C. in the presence of ethylene glycol, formamide or acetamide. The starting materials are obtained by coupling the appropriate diazotized 2 : 5-dialkoxyaniline or 2-hydroxy - 5 - alkoxyaniline with b - naphthol or a 6- or 7-sulphonamide thereof. Examples are given of the preparation and chroming (with chromic acetate) of various monoazo dyes to give compounds of the above formula. Further examples show the dyeing of wool and nylon.
GB3315/51A 1950-06-29 1951-02-12 Improvements in azo dye Expired GB681653A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US681653XA 1950-06-29 1950-06-29

Publications (1)

Publication Number Publication Date
GB681653A true GB681653A (en) 1952-10-29

Family

ID=22080819

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3315/51A Expired GB681653A (en) 1950-06-29 1951-02-12 Improvements in azo dye

Country Status (1)

Country Link
GB (1) GB681653A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1032865B (en) * 1955-12-07 1958-06-26 Basf Ag Process for the production of cobalt-containing monoazo dyes
DE1032864B (en) * 1954-06-16 1958-06-26 Basf Ag Process for the production of cobalt-containing monoazo dyes

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1032864B (en) * 1954-06-16 1958-06-26 Basf Ag Process for the production of cobalt-containing monoazo dyes
DE1032865B (en) * 1955-12-07 1958-06-26 Basf Ag Process for the production of cobalt-containing monoazo dyes

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