GB247187A - Process of dyeing leather with acid azo-dyestuffs - Google Patents

Process of dyeing leather with acid azo-dyestuffs

Info

Publication number
GB247187A
GB247187A GB2914/26A GB291426A GB247187A GB 247187 A GB247187 A GB 247187A GB 2914/26 A GB2914/26 A GB 2914/26A GB 291426 A GB291426 A GB 291426A GB 247187 A GB247187 A GB 247187A
Authority
GB
United Kingdom
Prior art keywords
acid
resorcinol
sulphonic
chlor
nitro
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
GB2914/26A
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.)
IG Farbenindustrie AG
Original Assignee
IG Farbenindustrie 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 IG Farbenindustrie AG filed Critical IG Farbenindustrie AG
Publication of GB247187A publication Critical patent/GB247187A/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
    • 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
    • D06P3/32—Material containing basic nitrogen containing amide groups leather skins
    • D06P3/3206—Material containing basic nitrogen containing amide groups leather skins using acid dyes
    • D06P3/3226—Material containing basic nitrogen containing amide groups leather skins using acid dyes dis-polyazo

Landscapes

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

Abstract

247,187. I. G. Farbenindustrie Akt.- Ges., (Assignees of Farbwerke vorm. Meister, Lucius, & Br³ning). Feb. 3, 1925, [Convention date]. Polyazo dyes.-Azo dyes of the type amine # resorcinol <- aminonaphthol or naphthylamine sulphonic acid <- amine are used for dyeing leather in even deep brown shades. The amines may be any diazotizable aromatic amine, aminooxy-, or amino-azo compound, or their sulphonic or carboxylic .acids, such as aniline, p-nitraniline, amino-azobenzene. 2-chlor-6-toluidine-4-sulphonic acid, p-nitro-o-aminophenol, picramic acid, etc.; the resorcinol may be replaced by its substitution products (except sulphonic acids) such as chlorresorcinol or 1 : 3 : 4-resorcylic acid; as rediazotizable middle components are specified 1:8- aminonaphthol-3: 6- or 4: 6-disulphonic acid, 1 : 8-aminonaphthol-4-sulphonic acid, and 1-naphthylamine-6 (7)-sulphonic acid (technical mixture). In an example the dyestuff p-nitraniline # resorcinol <- H-acid # pieramic acid is used. The following dyestuffs are also specified: -2-toluidine-5-sulpho acid or sulphanilic acid or naphthionic acid # H-acid ->- resorcinol # p-nitraniline, sulphanilic acid # Cleve's acid (mixture) # resorcinol <- 4-nitro-2-aminophenol, 4-nitro-2-aminophenol # Cleve's acid # resorcinol # naphthionic acid, and picramic acid # Cleve's acid # resorcinol # picramic acid. 2-Chlor-6-toluidine-4-sulphonic acid is made by sulphonating 2-chlor-6-nitro-toluene and reducing the 2-chlor-6-nitrotoluene-4-sulpbonic acid thus obtained.
GB2914/26A 1925-02-03 1926-02-01 Process of dyeing leather with acid azo-dyestuffs Expired GB247187A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE247187X 1925-02-03

Publications (1)

Publication Number Publication Date
GB247187A true GB247187A (en) 1927-03-10

Family

ID=5935298

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2914/26A Expired GB247187A (en) 1925-02-03 1926-02-01 Process of dyeing leather with acid azo-dyestuffs

Country Status (1)

Country Link
GB (1) GB247187A (en)

Similar Documents

Publication Publication Date Title
US2185153A (en) Stable ice color producing
GB209723A (en) Manufacture of new azo-dyestuffs
GB247187A (en) Process of dyeing leather with acid azo-dyestuffs
GB536159A (en) Manufacture of brown polyazo dyestuffs, especially suitable for dyeing leather
GB267162A (en) Manufacture of dyestuffs
US2257694A (en) Process for dyeing leather
GB779486A (en) Manufacture of polyazo-dyestuffs
GB265553A (en) Improvements in tetrakisazo dyes, and the process of manufacture
US2112864A (en) Process for producing fast dyeings on the fiber
US2155685A (en) Azo dyes
GB299791A (en) Manufacture of azo-dyestuffs
GB569770A (en) Diazo dyestuffs
US2606896A (en) Method of preparation of watersoluble azo dyes and watersoluble bases therefor
US1876641A (en) Dyeing preparation for coloring chrome leather and process of making the same
GB258611A (en) Process of dyeing cellulose esters and ethers
GB424262A (en) Manufacture of azo-dyestuffs suitable for dyeing leather
GB530215A (en) Process for dyeing leather, production of disazo dyestuffs more especially for use therein and the resulting dyestuffs
GB403672A (en) Improvements in the manufacture of leather dyes
GB1598212A (en) Water-soluble polyazo dyestuffs
GB245790A (en) Process of dyeing cellulose esters and ethers
GB614652A (en) Manufacture and use of polyazo-dyestuffs
GB533060A (en) Manufacture of hexakisazo dyestuffs, more especially suitable for dyeing leather
GB390936A (en) Process for the manufacture of copper complex compounds of polyazodyestuffs
GB190906086A (en) Manufacture of New Monoazo-dyestuffs.
GB546595A (en) Manufacture of disazo dyestuffs