NON-AQUEOUS INK JET INK COMPOSITION AND RECORDING METHOD

• Main Authors: KUBOTA KENICHIRO, MATSUMOTO AKIRA, TAKIGUCHI HIROSHI
• Format: Patent
• Language: English; Japanese
• Published: 13.10.2023
• 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 non-aqueous ink jet ink composition that can achieve both satisfactory glossiness and a satisfactory property of reducing unevenness at the same time.SOLUTION: A non-aqueous ink jet ink composition according to an embodiment of the present disclosure contains a bright pigment, and glycol monoether A and glycol monoether B that are represented by Formula (1) and have flash points different from each other, in which the glycol monoether A has a flash point of 85°C or lower, the glycol monoether B has a flash point of 95°C or higher, a total content of the glycol monoether A and the glycol monoether B is in a range of 20 to 60 mass% with respect to a total amount of the ink composition, and the content of the glycol monoether A is greater than the content of the glycol monoether B. R1-(O-R2)n-OH...Formula (1) (In Formula (1), R1 represents an alkyl group having 1 to 8 carbon atoms or a phenyl group, R2 represents an alkylene group having 1 to 5 carbon atoms, and n represents an integer of 1 to 4.)SELECTED DRAWING: Figure 1 【課題】良好な光沢性と良好なムラの低減性を両立できる非水系インクジェットインク組成物を提供すること。【解決手段】本発明の一実施形態に係る非水系インクジェットインク組成物は、光輝性顔料と、下記式（１）で表され引火点が互いに異なるグリコールモノエーテルＡとグリコールモノエーテルＢとを含有し、前記グリコールモノエーテルＡの引火点は、８５℃以下であり、前記グリコールモノエーテルＢの引火点は、９５℃以上であり、前記グリコールモノエーテルＡと前記グリコールモノエーテルＢの合計含有量は、インク組成物の総量に対して２０～６０質量％であり、前記グリコールモノエーテルＡの含有量は、前記グリコールモノエーテルＢの含有量よりも多いものである。Ｒ１－（Ｏ－Ｒ２）ｎ－ＯＨ ・・・式（１）（式（１）中、Ｒ１は、炭素数１～８のアルキル基又はフェニル基であり、Ｒ２は、炭素数１～５のアルキレン基であり、ｎは１～４の整数である。）【選択図】図１