GB760710A - New metallisable disazostilbene dyestuffs - Google Patents

New metallisable disazostilbene dyestuffs

Info

Publication number
GB760710A
GB760710A GB3269753A GB3269753A GB760710A GB 760710 A GB760710 A GB 760710A GB 3269753 A GB3269753 A GB 3269753A GB 3269753 A GB3269753 A GB 3269753A GB 760710 A GB760710 A GB 760710A
Authority
GB
United Kingdom
Prior art keywords
pyrazolone
indazyl
methyl
dyestuffs
bis
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
GB3269753A
Inventor
Robert Ronald Davies
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.)
Imperial Chemical Industries Ltd
Original Assignee
Imperial Chemical Industries Ltd
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 Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Priority to GB3269753A priority Critical patent/GB760710A/en
Publication of GB760710A publication Critical patent/GB760710A/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
    • C09B35/00—Disazo and polyazo dyes of the type A<-D->B prepared by diazotising and coupling
    • C09B35/02—Disazo dyes
    • C09B35/039—Disazo dyes characterised by the tetrazo component
    • C09B35/205—Disazo dyes characterised by the tetrazo component the tetrazo component being a derivative of a diaryl- or triaryl- alkane or-alkene
    • C09B35/215—Disazo dyes characterised by the tetrazo component the tetrazo component being a derivative of a diaryl- or triaryl- alkane or-alkene of diarylethane or diarylethene
    • 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
    • C09B45/00—Complex metal compounds of azo dyes

Landscapes

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

Abstract

The invention comprises dyestuffs which as free acids are of formula <FORM:0760710/IV(b)/1> where X is a direct link or -NHCOO -or -NHCOO - linked via -NHCO- to the stilbene radical and A is a residue of a 1- (51 or 61-indazyl)-3-methyl-5-pyrazolone which is linked to azo group via the 4-position of the pyrazolone ring. They are made by tetrazotizing 4:41- diaminostilbene-2:21-disulphonic acid or its bis-m- or p-aminobenzoyl derivatives and coupling the tetrazo derivatives thus formed with 2 molecular proportions of 1-(51 or 61-indazyl 3-3-methyl-5-pyrazolone. The dyestuffs dye cellulosic fibres e.g. cotton and viscose, in orange to scarlet shades, and the dyeings may be after-coppered. Examples are provided of the following dyestuffs 4:41-diaminostilbene-2:21-disulphonic acid or its bis-m or p-aminobenzoyl derivatives-->1-(61-indazyl)-3-methyl-5-pyrazolone (alkaline) and (2) 4:41-diamino-stilbene-2:21 disulphonic acid and its bis-m-aminobenzoyl derivative--> 1-(51-indazyl) - 3 - methyl-5-pyrazolone (alkaline) and their use in dyeing cellulose fibres by an after-coppering process. In the Provisional Specification A is a residue such that HA is a 1-(51 - or 61-indazyl)-3-methyl-5-pyrazolone. Specification 753,573 [Group IV (b)] is referred to.
GB3269753A 1953-11-25 1953-11-25 New metallisable disazostilbene dyestuffs Expired GB760710A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3269753A GB760710A (en) 1953-11-25 1953-11-25 New metallisable disazostilbene dyestuffs

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3269753A GB760710A (en) 1953-11-25 1953-11-25 New metallisable disazostilbene dyestuffs

Publications (1)

Publication Number Publication Date
GB760710A true GB760710A (en) 1956-11-07

Family

ID=10342657

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3269753A Expired GB760710A (en) 1953-11-25 1953-11-25 New metallisable disazostilbene dyestuffs

Country Status (1)

Country Link
GB (1) GB760710A (en)

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