GB191009620A - Manufacture and Production of New Substantive Azo-dyestuffs. - Google Patents

Manufacture and Production of New Substantive Azo-dyestuffs.

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Publication number
GB191009620A
GB191009620A GB191009620DA GB191009620A GB 191009620 A GB191009620 A GB 191009620A GB 191009620D A GB191009620D A GB 191009620DA GB 191009620 A GB191009620 A GB 191009620A
Authority
GB
United Kingdom
Prior art keywords
combining
acid
naphthol
amino
aminonaphthol
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
Inventor
Philip Arthur Newton
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of GB191009620A publication Critical patent/GB191009620A/en
Expired legal-status Critical Current

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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
    • C09B35/00—Disazo and polyazo dyes of the type A<-D->B prepared by diazotising and coupling
    • C09B35/36—Trisazo dyes of the type
    • C09B35/362—D is benzene

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Coloring (AREA)

Abstract

9620. Newton, P. A., [Farbenfabriken vorm. F. Bayer & Co.]. April 20. Trisazo dyes are obtained by combining the tetrazo compounds prepared from p-aminophenylazo-#- amino-a-naphthol-#-sulphonic acids with one molecular proportion of a 1 : 8-aminonaphthol sulphonic acid in acid solution and with one molecular proportion of resorcin, m-phenylenediamine, or maminophenol, or suitable derivatives thereof ; the same dyes are obtained by combining diazotized p-aminoacetanilide with #-amino-alpha-naphthol-#- sulphonic acid, diazotizing and combining with 1 : 8 - aminonaphthol sulphonic acids in acid solution, saponifying the products, rediazotizing, and combining with resorcin &c. ; or by combining diazotized p-aminoacetanilide or p-nitraniline with 1 : 8-aminonaphthol sulphonic acids in acid solution, saponifying or reducing, rediazotizing and combining with #-amino-alpha-naphthol-#-sulphonic acid, rediazotizing and combining with resorcin &c. In the first two of the above cases the order of combination may be reversed. According to an example, the diazo compound of p-aminoacetanilide is combined with 2-amino-5-naphthol-7-sulphonic acid, the product is saponified, tetrazotized, and combined first with 1 : 8-aminonaphthol-4 : 6-disulphonic acid and then with resorcin. The following components are also specified :-2-amino- 8-naphthol-6-sulphonic acid ; 1 : 8-aminonaphthol-4- or -5-sulphonic acid or -3 : 6-disulpbonic acid. The products dye cotton blue to black shades ; the dyeings may be developed with diazo compounds, such as diazotized p-nitraniline, one molecular proportion of dye combining with two molecular proportions of diazo compound, giving black shades. Specifications 25,018/94 and 20,278/97 are referred to. Reference has been directed by the Comptroller to Specifications 19,743/92, 4979/93, and 15,269/93.
GB191009620D 1910-04-20 1910-04-20 Manufacture and Production of New Substantive Azo-dyestuffs. Expired GB191009620A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB191009620T 1910-04-20

Publications (1)

Publication Number Publication Date
GB191009620A true GB191009620A (en) 1911-04-20

Family

ID=33444908

Family Applications (1)

Application Number Title Priority Date Filing Date
GB191009620D Expired GB191009620A (en) 1910-04-20 1910-04-20 Manufacture and Production of New Substantive Azo-dyestuffs.

Country Status (1)

Country Link
GB (1) GB191009620A (en)

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