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GB2002020A - Conditioning of 4,4',7,7'- Tetrachlorothioindigo - Google Patents

Conditioning of 4,4',7,7'- Tetrachlorothioindigo

Info

Publication number
GB2002020A
GB2002020A GB7831912A GB7831912A GB2002020A GB 2002020 A GB2002020 A GB 2002020A GB 7831912 A GB7831912 A GB 7831912A GB 7831912 A GB7831912 A GB 7831912A GB 2002020 A GB2002020 A GB 2002020A
Authority
GB
United Kingdom
Prior art keywords
large amounts
kneaded
acid
pigment
tetrachlorothioindigo
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.)
Withdrawn
Application number
GB7831912A
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 Farben und Fasern AG
Original Assignee
BASF Farben und Fasern 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 Farben und Fasern AG filed Critical BASF Farben und Fasern AG
Publication of GB2002020A publication Critical patent/GB2002020A/en
Withdrawn legal-status Critical Current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
    • 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
    • C09B67/0001—Post-treatment of organic pigments or dyes
    • C09B67/0017—Influencing the physical properties by treatment with an acid, H2SO4
    • 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
    • C09B7/00—Indigoid dyes
    • C09B7/10—Bis-thionapthene indigos

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)
  • Pigments, Carbon Blacks, Or Wood Stains (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Disintegrating Or Milling (AREA)

Abstract

The raw pigment is kneaded with sulphuric acid at a viscosity sufficient to permit sheering forces to be exerted upon the mixture during kneading and subsequently the kneaded mixture hydrolyzed by the addition of water. The conditioned indigo pigment is an effective commercial dyeing agent and the disadvantages of earlier known treatments which require large amounts of acid or large amounts of solvents are overcome.
GB7831912A 1977-08-03 1978-08-02 Conditioning of 4,4',7,7'- Tetrachlorothioindigo Withdrawn GB2002020A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19772734951 DE2734951C2 (en) 1977-08-03 1977-08-03 Process for the aftertreatment of 4,4 ', 7,7'-tetrachlorothioindigo

Publications (1)

Publication Number Publication Date
GB2002020A true GB2002020A (en) 1979-02-14

Family

ID=6015518

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7831912A Withdrawn GB2002020A (en) 1977-08-03 1978-08-02 Conditioning of 4,4',7,7'- Tetrachlorothioindigo

Country Status (3)

Country Link
DE (1) DE2734951C2 (en)
FR (1) FR2399468A1 (en)
GB (1) GB2002020A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1037187C (en) * 1991-04-15 1998-01-28 Basf公司 Purification method of indigo
CN1037450C (en) * 1991-04-15 1998-02-18 Basr公司 Process for preparing purified indigo
CN1043651C (en) * 1991-07-17 1999-06-16 Basf公司 A method for preparing purified indigo

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2916400A1 (en) * 1979-04-23 1980-11-13 Basf Ag METHOD FOR PRODUCING LASING PIGMENT FORMS OF 4,4 ', 7,7'-TETRACHLORTHIOINDIGO

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1156998A (en) * 1956-07-26 1958-05-23 Gen Aniline & Film Corp Acid mashing of organic compounds in the tank
US3022299A (en) * 1958-12-30 1962-02-20 Gen Aniline & Film Corp Conditioning of pigments

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1037187C (en) * 1991-04-15 1998-01-28 Basf公司 Purification method of indigo
CN1037450C (en) * 1991-04-15 1998-02-18 Basr公司 Process for preparing purified indigo
CN1043651C (en) * 1991-07-17 1999-06-16 Basf公司 A method for preparing purified indigo

Also Published As

Publication number Publication date
DE2734951B1 (en) 1978-12-07
DE2734951C2 (en) 1979-08-09
FR2399468A1 (en) 1979-03-02

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)