| abstract |
A cleaning fluid for cleaning a site to which the ink adheres in an inkjet printer which ejects aqueous inkjet ink containing pigment and alkali-soluble resin having an acid group in a molecule, , nwherein the cleaning fluid contains 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 aminoacetic acid betaine, and 2-alkyl-n-carboxymethyl-n-hydroxyethyl imidazolium betaine and is contained in an amount of 0.1 to 3% by mass to the total amount of the cleaning fluid. |