Title:
AQUEOUS PIGMENT INK COMPOSITION
Document Type and Number:
Japanese Patent JP2014189725
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide an aqueous pigment ink composition capable of writing on a writing surface consisting of an impermeable smooth surface or porous surface, of easily erasing writing marks thereof with wet wiping materials such as wet rags, wet tissues, wet blackboard erasers, etc., and yielding writing marks not erased even when used outdoors and exposed to rains and, furthermore, to realize an excellent re-dispersibility over time.SOLUTION: The provided aqueous ink composition includes at least water, a pigment, a water-soluble resin, and a water-repellent resin in a state where the water-repellent resin includes an alkyl ketene dimer and/or alkenyl succinic anhydride.
Inventors:
SAITO SATOSHI
Application Number:
JP2013068687A
Publication Date:
October 06, 2014
Filing Date:
March 28, 2013
Export Citation:
Assignee:
PENTEL KK
International Classes:
C09D11/16