PHOTOSENSITIVE RESIN LAMINATE FOR FLEXOGRAPHIC PRINTING PLATE HAVING INFRARED ABLATION LAYER

申请公布号：: JP2014119594(A)
申请号：: JP20120274544
申请日期：: 2012.12.17
申请公布日期：: 2014.06.30
申请人：: JSR CORP;NIPPON DENSHI SEIKI KK;OSAKA INSATSU INK SEIZO KK
发明人：: SANO TAKUYA;KANAE KENTARO;UEDA JIRO;AOYAMA AKIO;YOSHIDA JUN;TSUJIUCHI HIDEJI
分类号：: G03F7/039;G03F7/00;G03F7/004;G03F7/095;G03F7/36
主分类号：: G03F7/039
摘要：: PROBLEM TO BE SOLVED: To provide a photosensitive resin laminate for a flexographic printing plate, which includes an infrared ablation layer that can be removed with an infrared laser, and which has characteristics such as excellent adhesiveness with a photosensitive resin layer, good handling property in a platemaking process, good infrared laser drawing property, and solubility with a developing solvent for a flexographic printing plate.SOLUTION: The photosensitive resin laminate includes: a support layer (A); a photosensitive resin layer (B) which is disposed on the support layer (A) and comprises a thermoplastic elastomer, a polymerizable unsaturated monomer and a photopolymerization initiator; and an infrared ablation layer (C) which is disposed on the photosensitive resin layer (B), can be removed with an infrared laser and blocks non-infrared radiation. The infrared ablation layer (C) comprises syndiotactic 1,2-polybutadiene (c1), a resin (c2) having a number average molecular weight of 500 or more and 5,000 or less and a softening point of 60°C or higher and 200°C or lower, and an infrared-absorbing substance (c3).