Title:
PRODUCTION OF LITHIUM SALT OF ANIONIC DYE PREFERABLY HAVING FIBER REACTIVE GROUP
Document Type and Number:
Japanese Patent JPS61130374
Kind Code:
A
Abstract:
Lithium salts of anionic dyes are prepared by first converting another salt of this anionic dye in aqueous solution or suspension by means of a compound which releases calcium ions into the water-insoluble or sparingly water-soluble calcium salt of the dye, which is separated from the aqueous medium and is then converted to an aqueous suspension by treatment with lithium sulfate or lithium hydrogensulfate or a mixture thereof in an equivalent amount of each or in an excess of up to 10% into its lithium salt.
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Inventors:
FURITSUTSU MAININGERU
RUUTOUITSUHI SHIYUREEFUERU
RUUTOUITSUHI SHIYUREEFUERU
Application Number:
JP26517685A
Publication Date:
June 18, 1986
Filing Date:
November 27, 1985
Export Citation:
Assignee:
HOECHST AG
International Classes:
C09B62/02; C09B62/44; C09B69/02; (IPC1-7): C09B69/02
Foreign References:
| DE1909136A1 | 1970-09-10 | |||
| US4002603A | 1977-01-11 | |||
| GB1318111A | 1973-05-23 |
Attorney, Agent or Firm:
Ezaki Mitsuyoshi
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