Ink composition capable of realizing image possessing excellent rubbing/scratch resistance
AssigneeSeiko Epson Corporation
InventorToshiyuki Miyabayashi
Life of this patent
Estimating the term…
Abstract
An ink composition comprising a resin having a certain chelate structure can realize an image possessing excellent rubbing/scratch resistance and at the same time can realize various properties on a high level required of ink compositions. The ink composition comprises a colorant, water, a water-soluble organic solvent, and fine particles of a polymer, the polymer having a ligand structure capable of combining with a metal ion to form a chelate.
Claims26
An ink composition comprising a pigment, water, a water-soluble organic solvent, a water-soluble sequestering agent, and fine particles of a polymer, the polymer having a ligand structure that combines with a metal ion to form a chelate and, upon the formation of the chelate, forms an agglomerate.
An ink composition comprising water, a pigment in an amount of about 0.5 to 25% by weight, a water-soluble organic solvent in an amount of about 0.1 to 30% by weight, a water-soluble sequestering agent in an amount of about 0.0001 to 5% by weight, and fine particles of a polymer in an amount of about 1 to 10% by weight, the polymer having a film forming property and a ligand structure that combines with a metal ion to form a chelate and, upon the formation of the chelate, forms an agglomerate.
Dependencies are inferred from the claim text.