Ink composition, image forming method, and printed article using the same

摘要

Provided is an ink composition that can form an image in which bleeding caused when the image is recorded by an ink jet method is inhibited and which has excellent toughness and glossiness and shows excellent adhesiveness with respect to various substrates, even when being dried at a low temperature. The ink composition for an ink jet including (a) an alkyl(meth)acrylate copolymer which contains an alkyl(meth)acrylate having 7 to 22 carbon atoms in total and a repeating unit derived from (meth)acrylic acid and has an acid value of 1.3 mmol/g to 2.0 mmol/g in an unneutralized state, and (b) an aqueous medium containing water.

主权项

1. An ink composition for an ink jet comprising:
(a) an alkyl (meth)acrylate copolymer which contains a repeating unit derived from an alkyl (meth)acrylate having 7 to 22 carbon atoms in total and a repeating unit derived from (meth)acrylic acid and has an acid value of 1.3 mmol/g to 2.0 mmol/g in an unneutralized state; and (b) an aqueous medium containing water, wherein the (a) alkyl (meth)acrylate copolymer is a copolymer of which 10% by mass or more dissolves in the (b) aqueous medium used in the ink composition.