Pigment ink composition

Details Pigment ink composition Pigment ink composition

Filed on

2008-07-01

Date issued

2008-07-01

Examiner

Lipman, Bernard (Department: 1796)

Patent Class

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

SubClass

Synthetic resins

SubSubClass

Processes of preparing a desired or intentional composition...

Other Related Categories

C523S161000, C524S555000, C106S031600, C106S031850, C106S031860

Type

Reexamination Certificate

Status

active

Patent number

10518452

Description

ABSTRACT:
A pigmented ink composition comprising a pigment, a resin having an acidic group and an organic solvent having a boiling point of at least 150° C. which is present in an amount of from 50 to 90% by weight based on the whole weight of the ink composition. When this ink composition is subjected to an printed layer-sliding test in which the ink composition is applied on a cationically treated printing medium with a #4 bar coater (available from TOYO SEIKI KOGYO CO., LTD.) and dried and then the printed surface is slid with a cloth on which a weight of 50 g is placed, the printed record is not grazed. This ink composition contains the pigment with a small dispersion particle size and has good water resistance, can be printed on a plain paper sheet without cockling, and suffers from no grazing of printed records when the ink composition is printed on a cationically treated paper sheet.

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Lewis, Sr., Richard J.; Hawley's Condensed Chemical Dictionary 13th Ed., John Wily & Sons, New York, 1997 (pp. 469-470).

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