Direct-to-press imaging system for use in lithographic printing

Details Direct-to-press imaging system for use in lithographic printing Direct-to-press imaging system for use in lithographic printing

B - Operations, Transporting

41

F

B41F 7/00 (2006.01) B41C 1/10 (2006.01)

Patent

CA 2073295

A direct-to-press imaging system for use in lithographic printing wherein a master-image printing cylinder is used with separate application of ink and water onto its surface to enable repetitive conveyance of image-formatted ink films onto substrates for printing purposes. The imaging system includes a master-image printing cylinder adapted for receiving a hydrophilic coating layer on its surface and a device for laying down a uniform layer of hydrophilic material on the surface of this cylinder. An apparatus is also provided for applying oleophilic materials in image-formatted patterns on top of the layer of hydrophilic material on the master-image printing cylinder to form a printing structure having separate hydrophilic and oleophilic areas of the format to be printed. Further, a mechanism is provided for removing the printing structure including both the hydrophilic and oleophilic materials from the surface of the master-image printing cylinder so that a new printing structure corresponding to a new image to be printed can be formed on the master-image printing cylinder.

La présente invention fait état d'un système d'imagerie à impression lithographique directe. Il s'agit d'un cylindre d'impression à image-matrice sur lequel on applique séparément de l'encre et de l'eau en vue de reproduire de façon répétée des films d'encre correspondant à l'image à reproduire sur des supports d'impression. Le système d'imagerie comprend : un cylindre d'impression à image-matrice dont la surface est conçue pour recevoir une couche hydrophile; et un dispositif pour appliquer uniformément une couche de matériau hydrophile sur la surface de ce cylindre. Un dispositif est également prévu pour l'application de matériaux oléophiles, correspondant aux motifs de l'image à reproduire, par-dessus la couche de matériau hydrophile déjà sur le cylindre d'impression à image-matrice, ce qui permet de former une structure d'impression comportant des zones hydrophiles et oléophiles distinctes du format à imprimer. En outre, un mécanisme est prévu pour enlever la structure d'impression, y compris les matériaux hydrophiles et oléophiles de la surface du cylindre d'impression à image-matrice afin de pouvoir y former une nouvelle structure d'impression correspondant à une nouvelle image à imprimer.

Affiliated with

Also associated with

Rating

Direct-to-press imaging system for use in lithographic printing does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Direct-to-press imaging system for use in lithographic printing, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Direct-to-press imaging system for use in lithographic printing will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-2064585