GB1045129A - Purifying colour bases of the nigrosine and induline series - Google Patents

Purifying colour bases of the nigrosine and induline series

Info

Publication number
GB1045129A
GB1045129A GB3765365A GB3765365A GB1045129A GB 1045129 A GB1045129 A GB 1045129A GB 3765365 A GB3765365 A GB 3765365A GB 3765365 A GB3765365 A GB 3765365A GB 1045129 A GB1045129 A GB 1045129A
Authority
GB
United Kingdom
Prior art keywords
induline
nigrosine
series
purifying
bases
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
GB3765365A
Inventor
Helmut Finkenauer
Eduard Hartmann
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.)
BASF SE
Original Assignee
BASF SE
Badische Anilin and Sodafabrik 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 BASF SE, Badische Anilin and Sodafabrik AG filed Critical BASF SE
Publication of GB1045129A publication Critical patent/GB1045129A/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
    • C09B59/00—Artificial dyes of unknown constitution
    • 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
    • C09B17/00—Azine dyes
    • C09B17/02—Azine dyes of the benzene series
    • 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
    • C09B67/00—Influencing the physical, e.g. the dyeing or printing properties of dyestuffs without chemical reactions, e.g. by treating with solvents grinding or grinding assistants, coating of pigments or dyes; Process features in the making of dyestuff preparations; Dyestuff preparations of a special physical nature, e.g. tablets, films
    • C09B67/0096—Purification; Precipitation; Filtration

Landscapes

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

Abstract

Bases of the nigrosine and induline series are purified by treating the finely divided dye with dilute aqueous acid and drying the product thus obtained at 100-115 DEG C. under subatmospheric pressure. In the example there is an intermediate washing with water between the acid treatment and the drying stages. The acid preferably has a pH of not less than 6.
GB3765365A 1964-09-05 1965-09-03 Purifying colour bases of the nigrosine and induline series Expired GB1045129A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB78413A DE1260057B (en) 1964-09-05 1964-09-05 Process for cleaning color bases of the nigrosine and indulin series

Publications (1)

Publication Number Publication Date
GB1045129A true GB1045129A (en) 1966-10-05

Family

ID=6979871

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3765365A Expired GB1045129A (en) 1964-09-05 1965-09-03 Purifying colour bases of the nigrosine and induline series

Country Status (3)

Country Link
CH (1) CH445695A (en)
DE (1) DE1260057B (en)
GB (1) GB1045129A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4230855A (en) * 1977-10-31 1980-10-28 Montedison S.P.A. Method of preparation of improved nigrosine and indulino dyes
EP1806626A1 (en) * 2004-09-27 2007-07-11 Dainippon Ink And Chemicals, Inc. Modified nigrosine and process for producing the same, and electrostatic charge image developing toner using said modified nigrosine

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE50534C (en) * FARBWERKE VORM. Meister, Lucius & Brüning in Höchst a. M Process for the isolation of a dye of the indulin series

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4230855A (en) * 1977-10-31 1980-10-28 Montedison S.P.A. Method of preparation of improved nigrosine and indulino dyes
EP1806626A1 (en) * 2004-09-27 2007-07-11 Dainippon Ink And Chemicals, Inc. Modified nigrosine and process for producing the same, and electrostatic charge image developing toner using said modified nigrosine
EP1806626A4 (en) * 2004-09-27 2012-08-15 Dainippon Ink & Chemicals Modified nigrosine and process for producing the same, and electrostatic charge image developing toner using said modified nigrosine

Also Published As

Publication number Publication date
CH445695A (en) 1967-10-31
DE1260057B (en) 1968-02-01

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