Abstract: A method for preparing a lithographic web during manufacturing by incorporating a cleaning device cleaning device capable of being in contact with one or more web rollers. The cleaning device including a cleaning applicator to apply the cleaning solution such that the cleaning solution connected to the cleaning applicator, and a controller to move the applicator from an operational mode to a self-cleaning mode.

Abstract: Lithographic printing plate precursor comprising (a) a lithographic substrate with a hydrophilic surface and (b) a radiation-sensitive coating on the hydrophilic surface comprising (i) one or more types of monomers and/or oligomers and/or polymers, each comprising at least one ethylenically unsaturated group accessible to a free radical polymerization, (ii) at least one sensitizer, and at least one coinitiator capable of forming free radicals together with the sensitizer (ii); characterized in that the at least one sensitizer is an oligomeric or polymeric compound comprising the following structural unit (Formula (I)), wherein ?1 is an aromatic or heteroaromatic unit or a combination of the two so that a conjugated n-system is present between the two groups Z in structure (I), each Z independently represents a heteroatom, each R1 and R2 is independently selected from a halogen atom, an alkyl, aryl, alkylaryl or aralkyl group, a group —NR3R4 and a group —OR5, each R3, R4 and R5 is independently selected from a

Abstract: An apparatus and related method for preparing a lithographic web during manufacturing by incorporating a cleaning device cleaning device capable of being in contact with one or more web rollers. The cleaning device including a cleaning applicator to apply the cleaning solution such that the cleaning solution connected to the cleaning applicator, and a controller to move the applicator from an operational mode to a self-cleaning mode.

Abstract: An apparatus and related method for preparing a lithographic web during manufacturing by incorporating a cleaning device cleaning device capable of being in contact with one or more web rollers. The cleaning device including a cleaning applicator to apply the cleaning solution such that the cleaning solution connected to the cleaning applicator, and a controller to move the applicator from an operational mode to a self-cleaning mode.

Abstract: Lithographic printing plate precursor comprising (a) a lithographic substrate with a hydrophilic surface and (b) a radiation-sensitive coating on the hydrophilic surface comprising (i) one or more types of monomers and/or oligomers and/or polymers, each comprising at least one ethylenically unsaturated group accessible to a freeradical polymerization, (ii) at least one sensitizer, and at least one coinitiator capable of forming free radicals together with the sensitizer (ii); characterized in that the at least one sensitizer is an oligomeric or polymeric compound comprising the following structural unit (Formula (I)), wherein ?1 is an aromatic or heteroaromatic unit or a combination of the two so that a conjugated n-system is present between the two groups Z in structure (I), each Z independently represents a heteroatom, each R1 and R2 is independently selected from a halogen atom, an alkyl, aryl, alkylaryl or aralkyl group, a group —NR3R4 and a group —OR5, each R3, R4 and R5 is independently selected from an

Abstract: A process for the production of lithographic printing plate precursors with a coating comprising a diazo resin is described, wherein a solvent mixture comprising (i) 2 to 9.9 wt.-% 1-methoxy-2-propanol, (ii) 20 to 50 wt.-% of at least one ketone with a boiling point below 130° C., (iii) 20 to 60 wt.-% of at least one alkanol with a boiling point below 120° C., and (iv) 10 to 30 wt.-% ethyl lactate, and a slot coater are used to produce the printing plate precursors.