0688836-A2 is referenced by 51 patents and cites 10 patents.

A water-based pigment ink having high concentration which provides excellent jetting stability when using for ink-jet printer and provides excellent writing stability when using for fine-point pen is provided. The water-based pigment ink comprises water and carbon black, wherein said carbon black has a surface active hydrogen content of not less than 1.5 mmol/g.

Title
Water-based pigment ink and process for producing the same
Application Number
EP19950109550 19950620
Publication Number
0688836 (A2)
Application Date
June 20, 1995
Publication Date
December 27, 1995
Inventor
Nagasawa Toshiyuki
JP
Assignee
Orient Chemical
JP
IPC
C09D 11/16
C09D 11/02
C09D 11/16
C09D 11/00
C09D 11/16
C09D 11/00
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