| abstract |
A cleaning fluid for cleaning a site to which ink adheres in an inkjet printer which ejects aqueous inkjet ink containing a pigment and alkali-soluble resin having an acid group in a molecule, wherein the cleaning fluid contains an amphoteric surfactant, a basic compound, and water, a pH range of the cleaning fluid is from 9 to 12, the amphoteric surfactant is at least one selected from a group consisting of dimethyl_lauryl_amine oxide, lauryl_dimethyl_amino acetic acid betaine and a 2-al-kyl-n-carboxymethyl-n-hydroxyethyl_imidazolinium betaine and is contained in an amount of 0.1- to 3% by mass to the total amount of the cleaning fluid. |