INK SET AND INKJET METHOD

• Main Authors: TANAKA KYOHEI, HISHIDA YUKO, SEKINE MIDORI
• Format: Patent
• Language: English; Japanese
• Published: 10.03.2022
• Subjects: ADHESIVES; CHEMICAL PAINT OR INK REMOVERS; CHEMISTRY; COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS; COLOUR PRINTING; CORRECTING FLUIDS; DYES; FILLING PASTES; 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; STAMPS; TRANSPORTING; TYPEWRITERS; USE OF MATERIALS THEREFOR; WOODSTAINS

To provide an ink set capable of imparting excellent glossiness to a recorded matter and its inkjet method.SOLUTION: An ink set of a radiation hardened ink jet composition comprising a polymerizable compound, in which the ink set contains a color ink and a clear ink as the radiation curable ink jet composition, in which the polymerizable compound contained in the clear ink contains at least any one of a polymerizable monomer A1 having a volume defined by a van-der-Waals radius of 0.26 nm3 or larger and an area in a height direction relative to a longer side of 0.25 nm2 or larger and a polymerizable oligomer A2, and a total content of the polymerizable oligomer A1 and the polymerizable oligomer A2 contained in the clear ink is 80 mass% or larger to a total amount of the polymerizable compound.SELECTED DRAWING: None 【課題】光沢性に優れる記録物を与えることのできるインクセット及びそのインクジェット方法を提供すること。【解決手段】重合性化合物を含む放射線硬化型インクジェット組成物のインクセットであって、該インクセットが、前記放射線硬化型インクジェット組成物として、カラーインクとクリアインクとを含み、該クリアインクに含まれる前記重合性化合物が、van-der-Waals半径で定義される体積が０．２６ｎｍ3以上かつ長辺に対する高さ方向の面積が０．２５ｎｍ2以上である重合性モノマーＡ１、又は重合性オリゴマーＡ２の少なくともいずれかを含み、前記クリアインクに含まれる前記重合性モノマーＡ１及び前記重合性オリゴマーＡ２の合計含有量が、前記重合性化合物の総量に対して、８０質量％以上である、インクセット。【選択図】なし