JPS56131669A - Production of highly concentrated solution of metal complex dye - Google Patents

Production of highly concentrated solution of metal complex dye

Info

Publication number
JPS56131669A
JPS56131669A JP3539980A JP3539980A JPS56131669A JP S56131669 A JPS56131669 A JP S56131669A JP 3539980 A JP3539980 A JP 3539980A JP 3539980 A JP3539980 A JP 3539980A JP S56131669 A JPS56131669 A JP S56131669A
Authority
JP
Japan
Prior art keywords
dye
org
metal complex
group
concentrated solution
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.)
Pending
Application number
JP3539980A
Other languages
Japanese (ja)
Inventor
Yoshirou Izutsuya
Sadaji Abeta
Suketsugu Kofumura
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 JP3539980A priority Critical patent/JPS56131669A/en
Publication of JPS56131669A publication Critical patent/JPS56131669A/en
Pending legal-status Critical Current

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Abstract

PURPOSE: To obtain the titled highly concentrated solution of a dye, which dyes polyamide fibers at least as well as powdered products, by a method wherein an acidic a.q. soln. of a specified metal complex dye is extracted by a water-insoluble org. solvent phase contg. a specified amine, and the dye component is back-extracted from said org. solvent phase.
CONSTITUTION: An acidic aq. soln. of a metal complex dye (which is a soluble complex salt contg. 1/2 or one equivalent metal atom such as Cr, Co or Cu in the dye molecule and does not contain sulfonic group or carboxyl group) is contacted with a water-insoluble org. solvent (e.g. toluene) contg. a water-insoluble sec. or tert.-amine of the formula (wherein R1 is a 6W24C aliph. group, arom. group; R2, R3 are each H, 1W24C hydrocarbon group with the proviso that at least one of R2, R3 is always hydrocarbon group) such as dibenzyldodecylamine, to extract said dye component by said org. phase. Then said org. phase is contacted with an alkaline aq. soln. (e.g. monoethanolamine) to back-extract said dye component, whereby a highly concentrated solution of the metal complex dye is produced.
COPYRIGHT: (C)1981,JPO&Japio
JP3539980A 1980-03-18 1980-03-18 Production of highly concentrated solution of metal complex dye Pending JPS56131669A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3539980A JPS56131669A (en) 1980-03-18 1980-03-18 Production of highly concentrated solution of metal complex dye

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3539980A JPS56131669A (en) 1980-03-18 1980-03-18 Production of highly concentrated solution of metal complex dye

Publications (1)

Publication Number Publication Date
JPS56131669A true JPS56131669A (en) 1981-10-15

Family

ID=12440830

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3539980A Pending JPS56131669A (en) 1980-03-18 1980-03-18 Production of highly concentrated solution of metal complex dye

Country Status (1)

Country Link
JP (1) JPS56131669A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61173203A (en) * 1985-01-28 1986-08-04 Sumitomo Chem Co Ltd Production of color filter

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61173203A (en) * 1985-01-28 1986-08-04 Sumitomo Chem Co Ltd Production of color filter
JPH041322B2 (en) * 1985-01-28 1992-01-10 Sumitomo Chemical Co

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