GB659695A - Process for producing fast dyeings - Google Patents

Process for producing fast dyeings

Info

Publication number
GB659695A
GB659695A GB24286/49A GB2428649A GB659695A GB 659695 A GB659695 A GB 659695A GB 24286/49 A GB24286/49 A GB 24286/49A GB 2428649 A GB2428649 A GB 2428649A GB 659695 A GB659695 A GB 659695A
Authority
GB
United Kingdom
Prior art keywords
oxynaphthalene
sulphonamide
dyestuff
nitro
amino
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
GB24286/49A
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.)
BASF Schweiz AG
Original Assignee
Ciba AG
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 Ciba AG filed Critical Ciba AG
Publication of GB659695A publication Critical patent/GB659695A/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
    • 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
    • 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

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

2-Oxynaphthalene sulphonamides in which the amino group may be substituted by one or two alkyl or oxyalkyl groups containing not more than 8 carbon atoms in all, are prepared by acylating the 2-oxynaphthalene-sulphonic acid, e.g. with p-toluene sulphonyl chloride, treating with a phosphorus chloride to produce the corresponding sulphonyl chloride, and then reacting with ammonia or an amine. 2-Oxynaphthalene-6-sulphonamides may be prepared by reacting with ammonia or an amine, 2-oxynaphthalene-1-carboxylic acid-6-sulphonyl chloride obtainable by the action of chlorosulphonic acid on 2-oxynaphthalene-1-carboxylic acid, and then removing the carboxyl group by heating in a weakly alkaline medium.ALSO:Textile materials are dyed by the single bath chroming process using a dyestuff free from carboxylic and sulphonic acid groups and of the formula <FORM:0659695/IV (c)/1> wherein R is a benzene residue containing a hydroxyl group in the ortho-position to the azo linkage, <FORM:0659695/IV (c)/2> is the residue of a 2-oxynaphthalene sulphonamide bound to the azo linkage in the 1-position, and X and Y each represent a hydrogen atom or an alkyl or oxyalkyl group and together contain not more than 8 carbon atoms. Other substituents may be present in the dyestuff, e.g. alkyl, alkoxy, acylamino, halogen and nitro groups. The sulphonamido group may be in the 3-, 4-, 5-, 6- or 7-position, but is preferably in one of the b -positions. The dyes may be prepared by coupling the ortho-oxy-diazo compound of the benzene series with the oxynaphthalene sulphonamide in an alkaline medium. In an example, 2-oxynaphthalene-6-sulphonamide is dissolved in potassium hydroxide and coupled in phe presence of sodium carbonate with diazotized 5-nitro-4-chloro-2-amino-1-oxybenzene. Other suitable components are specified. The dyeing is carried out by entering the wool into a bath containing the dyestuff together with potassium chromate, ammonium sulphate and sodium sulphate. Acetic acid is added to complete the dyeing. A valuable black dyeing is obtained by using a mixture of 3 parts of the dyestuff 5 - nitro - 2 - amino - 1 - oxybenzene --> 2 - oxynaphthalene - 6 - sulphonamide and 1 part of 4 - nitro - 2 - amino - 1 - oxybenzene --> 2 - oxynaphthalene-6-sulphonamide. p
GB24286/49A 1948-09-29 1949-09-21 Process for producing fast dyeings Expired GB659695A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH659695X 1948-09-29

Publications (1)

Publication Number Publication Date
GB659695A true GB659695A (en) 1951-10-24

Family

ID=4526790

Family Applications (1)

Application Number Title Priority Date Filing Date
GB24286/49A Expired GB659695A (en) 1948-09-29 1949-09-21 Process for producing fast dyeings

Country Status (1)

Country Link
GB (1) GB659695A (en)

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