Abstract: A method, a control means and an exposure apparatus for exposing a relief precursor (P) with a light source (2), the illumination area of the light source (2) covering part of the area of the precursor, wherein exposing the total area of the precursor is performed during an exposure pass by moving relatively to each other the light source and the precursor, the method comprising a step (20) of providing a mask (4) on a photosensitive layer, a first exposing step (ES1) comprising exposing during one or more exposure passes the precursor according to a first intensity profile (IP1) and a first speed profile (SP1); a second exposing step (ES2) comprising exposing during one or more exposure passes the precursor according to a second intensity profile (IP2) different from the first intensity profile (IP1) and a second speed profile (SP2) different from the first speed profile (SP1).

Abstract: Method for exposing a relief precursor, using a first light source to expose a first side of a relief precursor, a movable second light source to expose a second side of the relief precursor opposite the first side during one or more second exposure periods of one or more second exposure steps, said method comprising the steps of receiving through an operator interface at least one first characteristic representative for the first exposure period and/or at least one second characteristic representative for the one or more second exposure periods determining a sequence of operation for the first light source and the second light source based on the at least one first and/or second characteristic, said sequence being such that each of said one or more second exposure periods either fully overlaps with the first exposure period or does not overlap with the first exposure period.

Abstract: A method for producing flexographic printing plates, using a photopolymerizable flexographic printing element having, arranged one atop another, a dimensionally stable support, a photopolymerizable, relief-forming layer, an elastomeric binder, an ethylenically unsaturated compound, and a photoinitiator, and optionally a rough, UV-transparent layer, a particulate substance, and digitally imagable layer. The method includes: (a) producing a mask by imaging the digitally imagable layer, (b) exposing the photopolymerizable, relief-forming layer through the mask with actinic light, and photopolymerizing the image regions of the layer, and (c) developing the photpolymerized layer by washing out the unphotopolymerized regions of the relief-forming layer with an organic solvent, or by thermal development.

Abstract: A method for producing flexographic printing plates, using a photopolymerizable flexographic printing element having, arranged one atop another, a dimensionally stable support, a photopolymerizable, relief-forming layer, an elastomeric binder, an ethylenically unsaturated compound, and a photoinitiator, and optionally a rough, UV-transparent layer, a particulate substance, and digitally imagable layer. The method includes: (a) producing a mask by imaging the digitally imagable layer, (b) exposing the photopolymerizable, relief-forming layer through the mask with actinic light, and photopolymerizing the image regions of the layer, and (c) developing the photpolymerized layer by washing out the unphotopolymerized regions of the relief-forming layer with an organic solvent, or by thermal development.

Abstract: A method for producing flexographic printing plates, using a photopolymerizable flexographic printing element having, arranged one atop another, a dimensionally stable support, a photopolymerizable, relief-forming layer, an elastomeric binder, an ethylenically unsaturated compound, and a photoinitiator, and optionally a rough, UV-transparent layer, a particulate substance, and digitally imagable layer. The method includes: (a) producing a mask by imaging the digitally imagable layer, (b) exposing the photopolymerizable, relief-forming layer through the mask with actinic light, and photopolymerizing the image regions of the layer, and (c) developing the photpolymerized layer by washing out the unphotopolymerized regions of the relief-forming layer with an organic solvent, or by thermal development.

Abstract: A method for producing flexographic printing plates, using a photopolymerizable flexographic printing element having, arranged one atop another, a dimensionally stable support, a photopolymerizable, relief-forming layer, an elastomeric binder, an ethylenically unsaturated compound, and a photoinitiator, and optionally a rough, UV-transparent layer, a particulate substance, and digitally imagable layer. The method includes: (a) producing a mask by imaging the digitally imagable layer, (b) exposing the photopolymerizable, relief-forming layer through the mask with actinic light, and photopolymerizing the image regions of the layer, and (c) developing the photpolymerized layer by washing out the unphotopolymerized regions of the relief-forming layer with an organic solvent, or by thermal development.