ROSIN-MODIFIED POLYESTER RESIN FOR ACTIVE ENERGY RAY-CURABLE LITHOGRAPHIC PRINTING INK, ACTIVE ENERGY RAY-CURABLE LITHOGRAPHIC PRINTING INK, AND PRINTED MATTER

• Main Author: KONNO TAKAHIRO
• Format: Patent
• Language: English; Japanese
• Published: 08.10.2020
• 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 active energy ray-curable lithographic printing ink that achieves both printability and print film strength, and to provide a printed matter thereof.SOLUTION: A rosin modified polyester resin for active energy ray-curable lithographic printing ink, which is a reaction product of at least a resin acid (A), a α,β-unsaturated carboxylic acid or an acid anhydride thereof (B), and a polyalkylene glycol-based compound (C), and in which, characterized, the average molecular weight of the polyalkylene glycol-based compound (C) is 135 or more, and the n-hexane tolerance value is 2.00 or less.SELECTED DRAWING: None 【課題】本発明の目的は、印刷適性と印刷皮膜強度を両立する活性エネルギー線硬化型平版印刷インキおよびその印刷物を提供することである。【解決手段】少なくとも樹脂酸（Ａ）と、α、β−不飽和カルボン酸またはその酸無水物（Ｂ）と、ポリアルキレングリコール系化合物（Ｃ）との反応物である活性エネルギー線硬化型平版印刷インキ用ロジン変性ポリエステル樹脂であって、ポリアルキレングリコール系化合物（Ｃ）の平均分子量が１３５以上であり、ｎ−ヘキサントレランス値が２．００以下であることを特徴とする活性エネルギー線硬化型平版印刷インキ用ロジン変性ポリエステル樹脂。【選択図】なし