JPS57168952A - Production of stable form dioxazine violet pigment - Google Patents

Production of stable form dioxazine violet pigment

Info

Publication number
JPS57168952A
JPS57168952A JP5485681A JP5485681A JPS57168952A JP S57168952 A JPS57168952 A JP S57168952A JP 5485681 A JP5485681 A JP 5485681A JP 5485681 A JP5485681 A JP 5485681A JP S57168952 A JPS57168952 A JP S57168952A
Authority
JP
Japan
Prior art keywords
dioxazine violet
violet pigment
pigment
stable form
production
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.)
Granted
Application number
JP5485681A
Other languages
Japanese (ja)
Other versions
JPS6356269B2 (en
Inventor
Iwao Sakaguchi
Yoshiaki Hayashi
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.)
Sumitomo Chemical Co Ltd
Original Assignee
Sumitomo Chemical Co 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 Sumitomo Chemical Co Ltd filed Critical Sumitomo Chemical Co Ltd
Priority to JP5485681A priority Critical patent/JPS57168952A/en
Priority to US06/360,771 priority patent/US4481358A/en
Priority to DE19823211607 priority patent/DE3211607A1/en
Priority to CH2210/82A priority patent/CH647539A5/en
Publication of JPS57168952A publication Critical patent/JPS57168952A/en
Publication of JPS6356269B2 publication Critical patent/JPS6356269B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Pigments, Carbon Blacks, Or Wood Stains (AREA)
  • Inks, Pencil-Leads, Or Crayons (AREA)

Abstract

PURPOSE: To obtain easily the titled pigment having excellent coloring power, gloss, dispersibility, etc., by adding a 4W11C aliph. or alicyclic ketone to an aq. suspension of a metastable form dioxazine violet pigment and heat-treating the mixture.
CONSTITUTION: A 4W10C aliph. or alicyclic ketone such as methyl isobutyl ketone or 3-methylcyclohexanone in an amount of 0.1W5 times the amount by weight of a pigment mentioned below is added to an aq. suspension of a metastable form dioxazine violet pigment. The mixture is heat-treated to obtain the desired stable form dioxazine violet pigment. Said metastable form dioxazine violet pigment can be prepd. in the following manner. Crude dioxazine violet pigment is sulfated with 60W90% sulfuric acid, and then hydrolyzed. Alternatively, crude dioxazine violet pigment is dissolved in an acetyl halide, and recrystallized from water or a water-soluble solvent.
COPYRIGHT: (C)1982,JPO&Japio
JP5485681A 1981-04-10 1981-04-10 Production of stable form dioxazine violet pigment Granted JPS57168952A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP5485681A JPS57168952A (en) 1981-04-10 1981-04-10 Production of stable form dioxazine violet pigment
US06/360,771 US4481358A (en) 1981-04-10 1982-03-22 Process for producing dioxazine violet pigment
DE19823211607 DE3211607A1 (en) 1981-04-10 1982-03-30 METHOD FOR PRODUCING A DIOXAZINE VIOLET PIGMENT
CH2210/82A CH647539A5 (en) 1981-04-10 1982-04-08 METHOD FOR PRODUCING A DIOXAZINE VIOLET PIGMENT.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5485681A JPS57168952A (en) 1981-04-10 1981-04-10 Production of stable form dioxazine violet pigment

Publications (2)

Publication Number Publication Date
JPS57168952A true JPS57168952A (en) 1982-10-18
JPS6356269B2 JPS6356269B2 (en) 1988-11-07

Family

ID=12982228

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5485681A Granted JPS57168952A (en) 1981-04-10 1981-04-10 Production of stable form dioxazine violet pigment

Country Status (1)

Country Link
JP (1) JPS57168952A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006091649A (en) * 2004-09-27 2006-04-06 Dainippon Ink & Chem Inc Method for manufacturing pigment composition for blue-pixel portion of color filter, and the color filter

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006091649A (en) * 2004-09-27 2006-04-06 Dainippon Ink & Chem Inc Method for manufacturing pigment composition for blue-pixel portion of color filter, and the color filter

Also Published As

Publication number Publication date
JPS6356269B2 (en) 1988-11-07

Similar Documents

Publication Publication Date Title
JPS5632548A (en) Preparation of stable type dioxazine violet pigment
JPS57168952A (en) Production of stable form dioxazine violet pigment
JPS57168951A (en) Production of stable form dioxazine violet pigment
JPS5271526A (en) Preparation of water-dispersible processed pigments
JPS5594955A (en) Film-forming coating solution
JPS5525460A (en) Preparation of red dye
JPS5513760A (en) Water-resistant organic colorant and its production
JPS5363760A (en) Water treatment process for decoloring water
JPS5289158A (en) Thixotrpic polyvinyl choride paste sol compositions
JPS5677251A (en) Preparation of anthraquinone intermediate
JPS5582170A (en) Golden water color
JPS57131259A (en) Production of paprika coloring matter
JPS5640643A (en) Preparation of ethyl trans-2-decen-4-ynoate
JPS56120765A (en) Preparation of 1:2-type chromium complex salt dye having low bulk density
JPS5366941A (en) Preparation of anthroquinone dispersion dyes
JPS55108401A (en) Production of low-viscosity carboxymethylethylcellulose
JPS5542260A (en) Production of alpha-type hemihydrate gypsum from gypsum
JPS5444655A (en) Production of 1-chloroanthroquinone-2-carboxylic acid
JPS5321182A (en) Antibiotic angolamycin derivatives and their preparation
JPS5367729A (en) Aqueous pigment dispersion
JPS5423042A (en) Formation of anodic oxide film on aluminum or its alloy
JPS52128290A (en) Preparation of acylpeptides
JPS52141838A (en) Treatment of isoindolinone pigment
JPS5692899A (en) Composition containing s-adenosyl-l-methionine, and its preparation
IE39184L (en) 9-ß-D-ARABINOFURANOSYL PURINE