| abstract |
PROBLEM TO BE SOLVED: To provide a printing proof (proof) utilizing a feature of an ink jet printer capable of outputting a color image in a short time by a simple operation. Provided is a method for producing a proof which has high image fastness and can accurately perform print proofing, and a precoat liquid used in the method. SOLUTION: An aqueous pigment ink is used as the ink, a printing paper used in the main printing is used as a recording medium, and a precoat liquid having a property of aggregating the aqueous pigment ink is used. Then, after the precoat liquid is ejected from the recording head of the ink jet printer and adheres to the main printing paper, the aqueous pigment ink is ejected from the recording head to the adhered portion. The pre-coat liquid, It contains at least a metal salt and water. |