WHITE INK, NON-WHITE INK, INK SET, PRINTING SET, PRINTING METHOD, AND PRINTING APPARATUS

• Main Authors: HIROKAWA YUYA, SAIGA TAKUYA, NAKAGAWA TOMOHIRO, HAGIWARA HIRONORI, UMEMURA KAZUHIKO, KOYANO MASAYUKI, YAMAMOTO CHIKAU
• Format: Patent
• Language: English; Japanese
• Published: 13.12.2021
• 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 an ink set that can prevent cissing and bleeding between different colors and can give a high image density.SOLUTION: Provided is an ink set including: a non-white ink, which contains water, a coloring material, an organic solvent, and an acetylene glycol compound; and a white ink, which contains water, a coloring material, an organic solvent, and a compound represented by General formula (1). In General formula (1), R represents a hydrogen atom or a methyl group, n1 and n2 each represent an integer of from 1 through 7, k represents an integer of from 0 through 5, and m represents an integer of from 1 through 20.SELECTED DRAWING: None 【課題】色間でのはじき及び滲みを防止でき、高い画像濃度が得られるインクセットの提供。【解決手段】水、色材、有機溶剤、及びアセチレングリコール化合物を含む非白色インクと、水、色材、有機溶剤、及び下記一般式（１）で表される化合物を含む白色インクと、を有するインクセットである。前記一般式（１）中、Ｒは水素原子又はメチル基を表す。ｎ１、ｎ２は１〜７の整数を表す。ｋは０〜５の整数、ｍは１〜２０の整数を表す。【選択図】なし