AQUEOUS GRAVURE OR FLEXOGRAPHIC INK, PRINTED MATTER AND LAMINATE

• Main Authors: KOTO MICHIHISA, NIWA NORITO, INOMATA DAIKI, HOSHINO TOMOMI
• Format: Patent
• Language: English; Japanese
• Published: 05.11.2020
• Subjects: ADHESIVES; CHEMICAL PAINT OR INK REMOVERS; CHEMISTRY; COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS; COMPOSITIONS BASED THEREON; CORRECTING FLUIDS; DYES; FILLING PASTES; INKS; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; ORGANIC MACROMOLECULAR COMPOUNDS; PAINTS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; PERFORMING OPERATIONS; POLISHES; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING; USE OF MATERIALS THEREFOR; WOODSTAINS

To provide a gravure or flexographic ink excellent in light resistance, resistance to retort suitability and laminate strength, a plastic base material printed matter using the same, and a laminate body.SOLUTION: An aqueous gravure or flexographic ink for laminate contains an aqueous polyurethane resin, in which the aqueous polyurethane resin has a glass transition temperature of -40 to 0°C, a hydroxyl value of 0.1-15 mgKOH/g and an acid value of 15-60 mgKOH/g, and the aqueous polyurethane resin contains a constitutional unit derived from aliphatic polycarbonate polyol.SELECTED DRAWING: None 【課題】耐光性、耐レトルト適性、及びラミネート強度に優れたグラビアまたはフレキソ印刷インキと、これを用いたプラスチック基材印刷物、及びラミネート積層体を提供することを課題とする。【解決手段】水性ポリウレタン樹脂を含有するラミネート用の水性グラビアまたはフレキソインキであって、前記水性ポリウレタン樹脂の、ガラス転移温度は、−４０〜０℃、水酸基価は、０．１〜１５ｍｇＫＯＨ／ｇ、酸価は、１５〜６０ｍｇＫＯＨ／ｇであり、かつ、前記水性ポリウレタン樹脂は、脂肪族ポリカーボネートポリオール由来の構成単位を含有する、水性グラビアまたはフレキソインキ。【選択図】 なし