GB511103A - Manufacture of substantive polyazo dyestuffs - Google Patents

Manufacture of substantive polyazo dyestuffs

Info

Publication number
GB511103A
GB511103A GB25909/38A GB2590938A GB511103A GB 511103 A GB511103 A GB 511103A GB 25909/38 A GB25909/38 A GB 25909/38A GB 2590938 A GB2590938 A GB 2590938A GB 511103 A GB511103 A GB 511103A
Authority
GB
United Kingdom
Prior art keywords
acid
sulphonic acid
naphthylamine
sulphonic
dyes
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
GB25909/38A
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.)
Novartis AG
Original Assignee
JR Geigy 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 JR Geigy AG filed Critical JR Geigy AG
Publication of GB511103A publication Critical patent/GB511103A/en
Expired legal-status Critical Current

Links

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
    • C09B31/00—Disazo and polyazo dyes of the type A->B->C, A->B->C->D, or the like, prepared by diazotising and coupling
    • C09B31/16—Trisazo dyes
    • C09B31/22—Trisazo dyes from a coupling component "D" containing directive hydroxyl and amino groups

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Coloring (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

511,103. Dyes. GEIGY AKT.-GES., J. R Sept. 5, 1938, No. 25909. Convention date Sept. 7, 1937. [Classes 2(iii) and 15(ii)] Substantive polyazo dyes are made by diazotizing disazo dyes of the formula A-N=N-M1-N=N-M2-NH2 and coupling with 2-aroylamino-6-naphthol-8- sulphonic acids, in which the aroyl residue may be substituted (A = the residue of a benzene or naphthalene sulphonic or carboxylic acid, M1 and M2=benzene and naphthalene residues containing the azo groups in p-position to one another or to the amido group). They produce fast blue to grey shades on cotton and viscose which may be developed on the fibre to fast green shades. In examples the following dyes are described (1) aniline-m-sulphonic acid# 1 - naphthylamine - 7 - sulphonic acid# amino - hydroquinone dimethylether# 2 - (4<1>- or 3<1> - amino) benzoylamino - 6 - naphthol - 8 - sulphonic acid# (on the fibre)- 1 - phenyl - 3 - methyl - 5 - pyrazolone : other middle components 'specified are aminohydroquinone diethyl or dibenzyl ether, cresidine, aminonaphthol ethers or alpha-naphthylamine, (2) 1-amino-4- acetylaminonaphthalene-7-sulphonic acid# 1- naphthylamine - 6 - sulphonic acid # 1 - naphthylamine - 7 - sulphonic acid # N - benzoyl - 2:6:8: - acid. Other initial components specified are aniline o - sulphonic acid, aniline-2:5-disulphonic acid, 4-chloraniline-3- sulphonic acid, 2-naphthylamine-4:8-disulphonic acid. Specifications 445,999 and 481,832 are referred to.
GB25909/38A 1937-09-07 1938-09-05 Manufacture of substantive polyazo dyestuffs Expired GB511103A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH511103X 1937-09-07

Publications (1)

Publication Number Publication Date
GB511103A true GB511103A (en) 1939-08-14

Family

ID=4517437

Family Applications (1)

Application Number Title Priority Date Filing Date
GB25909/38A Expired GB511103A (en) 1937-09-07 1938-09-05 Manufacture of substantive polyazo dyestuffs

Country Status (1)

Country Link
GB (1) GB511103A (en)

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