Abstract: A method of thermal development of flexographic printing elements, having steps of: fixing a relief precursor a movable support; repeatedly moving the support in a multitude of movement cycles; heating the relief precursor to a temperature sufficient to cause the uncured portions of the photopolymer layer to soften or liquefy; contacting with a development medium; Single movement cycles are carried out with different heating powers and different contacting with the developing medium such that one may improve the registration accuracy of the printing element, ease removal of functional layers, smoothen the relief plate precursor surface, and address heat build-up problem.

Abstract: A method for thermally developing a relief precursor comprising a supporting layer and photopolymer layer having cured and uncured portions comprising the steps: (a) fixing the relief precursor with the supporting layer adjacent to a movable support; (b) repeatedly moving the support with the relief precursor fixed thereon in a multitude of movement cycles; (c) heating the relief precursor to a temperature sufficient to cause the uncured portions of the photopolymer layer to soften or liquefy; (d) contacting the relief precursor with a development medium to allow the liquefied material of the uncured portions to be adhered to and removed by the development medium; wherein the heating and contacting is carried out in cycles A, B, C or D each corresponding to a single movement cycle such that (i) in a cycle A, the relief precursor is heated with higher heating power and not contacted the relief precursor with the development medium; (ii) in a cycle B, the relief precursor is heated with higher heating power

Abstract: A method for producing flexographic printing plates. The method has the following steps: (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 photopolymerized layer by washing out the unphotopolymerized regions of the relief-forming layer with an organic solvent, or by thermal development, wherein step (b) contains at least two exposure cycles with actinic light with an intensity of 100 to 5000 mW/cm2 from a plurality of UV-LEDs, the energy input into the photopolymerizable, relief-forming layer per exposure cycle being 0.1 to 5 J/cm2.

Abstract: A method for producing flexographic printing plates, using as starting material a photopolymerizable flexographic printing element which at least comprises, arranged one atop another, a dimensionally stable support, and at least one photopolymerizable, relief-forming layer, at least comprising an elastomeric binding, an ethylenically unsaturated compound, and a photoinitiator, a digitally imagable layer, and the method comprises at least the following steps (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 photopolymerized layer by washing out the unphotopolymerized regions of the relief-forming layer with an organic solvent, or by thermal development, characterized in that step (b) comprises two or more exposure cycles (b 1) to (b n) with actinic light with an intensity of 100 to 5000 mW/cm2 from a plurality of UV-LEDs, the

Abstract: Process of manufacturing flexagraphic printing firms using digital flexographic printing elements as starting material by imaging, main exposure in the presence of oxygen, development and finishing. The process comprises an additional embossing step in which the surface of the developed printing form is texturized thereby improving the print quality of the printing form.

Abstract: Process of manufacturing flexagraphic printing firms using digital flexographic printing elements as starting material by imaging, main exposure in the presence of oxygen, development and finishing. The process comprises an additional embossing step in which the surface of the developed printing form is texturized thereby improving the print quality of the printing form.