GB276767A - New black and grey vat dyestuffs - Google Patents

New black and grey vat dyestuffs

Info

Publication number
GB276767A
GB276767A GB1551626A GB1551626A GB276767A GB 276767 A GB276767 A GB 276767A GB 1551626 A GB1551626 A GB 1551626A GB 1551626 A GB1551626 A GB 1551626A GB 276767 A GB276767 A GB 276767A
Authority
GB
United Kingdom
Prior art keywords
grey
new black
vat dyestuffs
dyestuffs
products
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
GB1551626A
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
British Dyestuffs Corp 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 British Dyestuffs Corp Ltd filed Critical British Dyestuffs Corp Ltd
Priority to GB1551626A priority Critical patent/GB276767A/en
Publication of GB276767A publication Critical patent/GB276767A/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
    • C09B3/00—Dyes with an anthracene nucleus condensed with one or more carbocyclic rings
    • C09B3/22—Dibenzanthrones; Isodibenzanthrones
    • C09B3/30—Preparation from starting materials already containing the dibenzanthrone or isodibenzanthrone nucleus

Landscapes

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

Abstract

276,767. British Dyestuffs Corporation, Ltd., and Thornley, S. June 19, 1926. Dibenzanthrone dyes.-The dyestuffs obtained according to the process of Specification 276,766 by alkali fusion of benzanthrone sulphonation products are treated with hydroxylamine or its salts in the presence or absence of ferrous sulphate. The products dye cotton in grey to black shades from the hydrosulphite vat. In examples, the reaction is effected in sulphuric acid solution.
GB1551626A 1926-06-19 1926-06-19 New black and grey vat dyestuffs Expired GB276767A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1551626A GB276767A (en) 1926-06-19 1926-06-19 New black and grey vat dyestuffs

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1551626A GB276767A (en) 1926-06-19 1926-06-19 New black and grey vat dyestuffs

Publications (1)

Publication Number Publication Date
GB276767A true GB276767A (en) 1927-09-08

Family

ID=10060497

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1551626A Expired GB276767A (en) 1926-06-19 1926-06-19 New black and grey vat dyestuffs

Country Status (1)

Country Link
GB (1) GB276767A (en)

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