Ink jet recording ink and ink jet recording method

Details Ink jet recording ink and ink jet recording method Ink jet recording ink and ink jet recording method

1996-11-26

1999-03-16

Cain, Edward J.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Processes of preparing a desired or intentional composition...

C09D 500

Patent

active

058831576

ABSTRACT:
Ink for ink jet recording containing water, a coloring material and a water-soluble organic solvent, containing 0.01 to 5 wt % of a polymer containing a carboxylic group or polymer having salt of a carboxylic group, having an acid value of 50 to 700; and 0.001 to 5 wt % of a surface active agent, wherein the foaming surface viscosity of the ink is 0.05 to 1.0 g/s. The polymer is a copolymer of hydrophobic .alpha., .beta.- unsaturated ethylene monomer and a monomer having a plurality of hydrophilic --COOM groups (wherein M is hydrogen, alkali metal, or an onium compound including ammonium ion, organic ammonium ion, phosphonium ion, sulfonium ion, oxonium ion, stibonium ion, stanonium and iodonium), a monomer having acid anhydride thereof or a monomer containing ester thereof. The ink for ink jet recording and the ink jet recording method according to the present invention provide an image having a high optical density, without unevenness and free from feathering and bleeding. Moreover, clogging of the nozzles and disorder in ink discharge can be prevented.

REFERENCES:
patent: 5133803 (1992-07-01), Moffatt

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