LIQUID INK COMPOSITION

• Main Authors: MOROI SUNAO, NAKANE KOHEI, CHANG KEUM-HEE, HOTTA HIROTAKA
• Format: Patent
• Language: English; Japanese
• Published: 07.12.2023
• Subjects: ADHESIVES; CHEMICAL PAINT OR INK REMOVERS; CHEMISTRY; COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS; 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; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; PAINTS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; PERFORMING OPERATIONS; POLISHES; TRANSPORTING; USE OF MATERIALS THEREFOR; WOODSTAINS

To provide a printed material that uses a biodegradable substrate, coupled with a printed layer with superior adhesion to the substrate as well as superior printability.SOLUTION: A printed material has a biodegradable substrate, and a printed layer that is provided on the substrate and includes polyurethane resins. The polyurethane resins at least include a polyurethane resin (A1) that uses a polyester polyol as the reactive raw material, where the polyester polyol uses a polycarboxylic acid with seven or more carbon atoms and two or more carboxyl groups as the raw material.SELECTED DRAWING: None 【課題】生分解性を有する基材を使用しつつも、基材に対する密着性及び良好な印刷適性を兼備する印刷層を有する印刷物を提供することを目的とする。【解決手段】生分解性を有する基材と、該基材上にポリウレタン樹脂を含む印刷層を有し、ポリウレタン樹脂が、ポリエステルポリオールを反応原料とし、該ポリエステルポリオールが炭素原子数が７以上、かつカルボキシル基を２つ以上有するポリカルボン酸を原料とするポリウレタン樹脂（Ａ１）を少なくとも含有する印刷物。【選択図】 なし