JPS5575455A - Preparation of thick aqueous dispersion of vat dye - Google Patents

Preparation of thick aqueous dispersion of vat dye

Info

Publication number
JPS5575455A
JPS5575455A JP14776578A JP14776578A JPS5575455A JP S5575455 A JPS5575455 A JP S5575455A JP 14776578 A JP14776578 A JP 14776578A JP 14776578 A JP14776578 A JP 14776578A JP S5575455 A JPS5575455 A JP S5575455A
Authority
JP
Japan
Prior art keywords
dye
vat dye
vat
solvent
aqueous
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
JP14776578A
Other languages
Japanese (ja)
Other versions
JPS6160873B2 (en
Inventor
Masao Imai
Saguru Takahata
Ryoichi Tsukahara
Tsuneo Hidaka
Toshiyuki Sugino
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.)
Mitsui Toatsu Chemicals Inc
Original Assignee
Mitsui Toatsu Chemicals Inc
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 Mitsui Toatsu Chemicals Inc filed Critical Mitsui Toatsu Chemicals Inc
Priority to JP14776578A priority Critical patent/JPS5575455A/en
Publication of JPS5575455A publication Critical patent/JPS5575455A/en
Publication of JPS6160873B2 publication Critical patent/JPS6160873B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Coloring (AREA)

Abstract

PURPOSE: To prepare an aqueous dispersion of vat dye having high dye content and excellent dispersion property, fluidity and storage stability, by heat-treating vat. dye in a water-immiscible inactive organic solvent and finely grinding the vat dye in the presence of a surfactant.
CONSTITUTION: Vat dye of formula wherein n is 1W3, is suspended in a water- immiscible inactive organic solvent selected from the group consisiting of halogenated arom. hydrocarbons and nitroso arom. hydrocarbons. The solvent is used in an amount ranging from 5W20 times the amount of the vat dye. The suspension is heat-treated at a boiling temperature of the solvent or at a temperature below 200°C under pressure for from 30min to 24hrs. Then the solvent is removed. If necessary, the vat dye is converted into aqueous wetted cake or aqueous suspension, to which an anion surfactant such as sodium naphthalenesulfonate-formalin condensate, sodium ligninsulfonate is added. The mixt. is finely ground mechanically by grinder.
COPYRIGHT: (C)1980,JPO&Japio
JP14776578A 1978-12-01 1978-12-01 Preparation of thick aqueous dispersion of vat dye Granted JPS5575455A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14776578A JPS5575455A (en) 1978-12-01 1978-12-01 Preparation of thick aqueous dispersion of vat dye

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14776578A JPS5575455A (en) 1978-12-01 1978-12-01 Preparation of thick aqueous dispersion of vat dye

Publications (2)

Publication Number Publication Date
JPS5575455A true JPS5575455A (en) 1980-06-06
JPS6160873B2 JPS6160873B2 (en) 1986-12-23

Family

ID=15437659

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14776578A Granted JPS5575455A (en) 1978-12-01 1978-12-01 Preparation of thick aqueous dispersion of vat dye

Country Status (1)

Country Link
JP (1) JPS5575455A (en)

Also Published As

Publication number Publication date
JPS6160873B2 (en) 1986-12-23

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