| abstract |
The present invention provides an ink composition comprising a colorant, a binder and a solvent, wherein the binder is an emulsion containing starch-based polymer particles of a core-shell structure or a dispersion thereof. The ink composition according to the present invention is an environmentally friendly material containing a raw material derived from natural materials such as starch polymer particles as a binder and has a core-shell structure and a glass transition temperature within a predetermined range, The coating film has good water resistance, oil resistance, abrasion resistance, adhesion, gloss, color strength, re-solubility, and metastability. Accordingly, the ink composition according to the present invention can be applied to various printing methods such as offset printing, inkjet printing, flexographic printing, gravure printing, and screen printing, and has excellent printing characteristics. |