Ink containing propylene oxide/ethylene oxide block copolymers f

Details Ink containing propylene oxide/ethylene oxide block copolymers f Ink containing propylene oxide/ethylene oxide block copolymers f

1992-11-06

1995-01-17

Lieberman, Paul

Compositions: coating or plastic

Coating or plastic compositions

Metal-depositing composition or substrate-sensitizing...

106 20D, 524505, C09D 1102

Patent

active

053822838

ABSTRACT:
An ink for ink jet recording contains a dye and water, a water soluble organic solvent which dissolves the dye, and 0.8 to 5 weight percent of propylene oxide/ethylene oxide block copolymer which has an average molecular weight from 1000 to 5000 and whose content of ethylene oxide group is in the range from 5 to 60 weight percent based on the average molecular weight of the block copolymer. The ink has a surface tension of 30-40 dyne/cm and a viscosity of 1-10 centipoise. An ink jet ink of this invention can be a combination of three colors, e.g., cyan, magenta and yellow, or four colors (adding black to these colors).

REFERENCES:
patent: 4923515 (1990-05-01), Koike et al.
patent: 5139574 (1992-08-01), Winnik et al.

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