| 摘要 |
PROBLEM TO BE SOLVED: To provide, in an inkjet printing using an ink composition, a method for improving fastness to friction such as dry friction and wet friction of dyed images.SOLUTION: Provided is a method for improving friction fastness of images dyed by an ink composition, comprising having a urethane resin included in the ink composition used in inkjet printing, the ink comprising a pigment, water, a polymeric dispersant, a water-soluble organic solvent, and a nonionic surfactant. |
