SET OF PROCESS LIQUID AND INK, IMAGE FORMING METHOD, AND IMAGE FORMING APPARATUS

• Main Authors: HIROKAWA YUYA, SAIGA TAKUYA, NAKAGAWA TOMOHIRO, HAGIWARA HIRONORI, UMEMURA KAZUHIKO, YAMAMOTO CHIKAU, TAMURA RISA
• Format: Patent
• Language: English; Japanese
• Published: 15.09.2022
• Subjects: ADHESIVES; CHEMICAL PAINT OR INK REMOVERS; CHEMISTRY; COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS; COLOUR PRINTING; CORRECTING FLUIDS; CORRECTION OF TYPOGRAPHICAL ERRORS; DYES; FILLING PASTES; i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; INKS; LINING MACHINES; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; PAINTS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; PERFORMING OPERATIONS; POLISHES; PRINTING; PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; SELECTIVE PRINTING MECHANISMS; STAMPS; TRANSPORTING; TYPEWRITERS; USE OF MATERIALS THEREFOR; WOODSTAINS

To provide a set of a process liquid and inks that can give a clear image with less color bleeding.SOLUTION: Provided is a set of a process liquid and inks, including a process liquid containing a flocculant, a non-white ink containing a coloring material other than white, and a white ink containing a white coloring material. When an aqueous solution containing the white ink 1 vol.% diluted with water and an aqueous solution containing calcium acetate 1 mass% are mixed with each other, a rate of initial increase in particle diameter is 30 nm/sec or greater after a lapse of 20 seconds from the start of mixing.SELECTED DRAWING: None 【課題】色間での滲みが少なく、鮮明な画像が得られる処理液とインクのセットの提供。【解決手段】凝集剤を含む処理液と、白色以外の色材を含む非白色インクと、白色の色材を含む白色インクと、を有し、前記白色インクを水で希釈した１体積％水溶液と、酢酸カルシウムの１質量％水溶液とを混合した際の、混合開始から２０秒後までの初期粒径増加率が３０ｎｍ／秒以上である処理液とインクのセットである。【選択図】なし