公开(公告)号：EP2726287A2

公开(公告)日：2014-05-07

申请号：EP12731820.2

申请日：2012-06-15

申请人： Eastman Kodak Company

发明人： MELAMED, Ophira ,  GAL, Ido ,  DAHAN, Limor ,  AMIEL-LEVY, Mazi

IPC分类号： B41C1/05

CPC分类号： B41N1/12 ,  B41C1/05 ,  Y10T428/31696 ,  Y10T428/31931 ,  Y10T442/20

摘要： A laser-engraveable composition comprises one or more elastomeric rubbers including at least 10 parts of one or more CLCB EPDM elastomeric rubbers, based on parts per hundred of the total weight of elastomeric rubbers (phr). The laser- engraveable composition further comprises 2-30 phr of a near-infrared radiation absorber and either 1-80 phr of an inorganic, non-infrared radiation absorber filler, or a vulcanizing composition that comprises a mixture of at least two peroxides. One first peroxide has a t
90 value of 1-6 minutes as measured at 160°C, and a second peroxide has a t
90 value of 8-20 minutes as measured at 160°C. This laser- engraveable composition can be used to form various flexographic printing precursors that can be laser-engraved to provide relief images in flexographic printing plates, printing cylinders, or printing sleeves.

摘要翻译： 激光可雕刻组合物包含一种或多种弹性体橡胶，其包含至少10份的一种或多种CLCB EPDM弹性体橡胶，基于每100重量份弹性体橡胶（phr）的份数。 该激光可雕刻组合物还包含2-30phr的近红外辐射吸收剂和1-80phr的无机非红外辐射吸收剂填充剂，或者包含至少两种过氧化物的混合物的硫化组合物。 在160℃下测量，一种第一过氧化物的t 90值为1-6分钟，而另一种过氧化物在160℃下测量的t 90值为8-20分钟。 该激光可雕刻组合物可以用于形成各种柔性版印刷前体，其可以被激光雕刻以在柔性版印刷版，印刷滚筒或印刷套筒中提供浮雕图像。

公开(公告)号：EP2726287B1

公开(公告)日：2016-04-13

申请号：EP12731820.2

申请日：2012-06-15

申请人： Eastman Kodak Company

发明人： MELAMED, Ophira ,  GAL, Ido ,  DAHAN, Limor ,  AMIEL-LEVY, Mazi

IPC分类号： B41C1/05 ,  B41N1/12

CPC分类号： B41N1/12 ,  B41C1/05 ,  Y10T428/31696 ,  Y10T428/31931 ,  Y10T442/20

公开(公告)号：EP2758240A1

公开(公告)日：2014-07-30

申请号：EP12767168.3

申请日：2012-09-14

申请人： Eastman Kodak Company

发明人： GAL, Ido ,  SOLOMON, Yehuda ,  MELAMED, Ophira ,  PERRY, Lior

IPC分类号： B41C1/05

CPC分类号： B41C1/05

摘要： A method of preparing a flexographic printing plate includes providing a flexographic plate having a printing layer wherein the printing layer is a top layer, a second layer wherein the second layer is a support layer, and a cushion layer wherein the cushion layer is a bottom layer; imaging a first zone on a surface of the cushion layer; and imaging a first area of a surface of the printing layer wherein the first area corresponds to the first zone.