公开(公告)号：US11635693B2

公开(公告)日：2023-04-25

申请号：US16755895

申请日：2018-09-25

Applicant: AGFA OFFSET BV

Inventor： Thomas Billiet ,  Katleen Himschoot

IPC: G03F7/11 ,  B41C1/10 ,  G03F7/027 ,  G03F7/38

Abstract: A lithographic printing plate precursor includes a photopolymerizable coating and an overcoat which is deactivated after imagewise exposure and preheating of the precursor.

公开(公告)号：US11845259B2

公开(公告)日：2023-12-19

申请号：US17055241

申请日：2019-05-13

Applicant: AGFA OFFSET BV

Inventor： Thomas Billiet ,  Kristof Heylen

IPC: B41C1/10 ,  G03F7/11 ,  B41N1/14

CPC classification number: B41C1/1016 ,  B41N1/14 ,  G03F7/11 ,  B41C2201/02 ,  B41C2201/12 ,  B41C2210/04 ,  B41C2210/08 ,  B41C2210/22

Abstract: A lithographic printing plate precursor is disclosed including a support and a coating comprising (i) a photopolymerisable layer including a polymerisable compound and an optionally substituted trihaloalkyl sulfone photoinitiator, and (ii) a toplayer provided above the photopolymerisable layer; characterized in that the toplayer includes an infrared absorbing dye capable of forming a print-out image upon exposure to heat and/or IR radiation.

公开(公告)号：US11813838B2

公开(公告)日：2023-11-14

申请号：US17055158

申请日：2019-05-13

Applicant: AGFA OFFSET BV

Inventor： Thomas Billiet ,  Eva Vermeiren

IPC: B41C1/10 ,  G03F7/11 ,  B41N1/14

CPC classification number: B41C1/1016 ,  B41N1/14 ,  G03F7/11 ,  B41C2201/02 ,  B41C2201/12 ,  B41C2210/04 ,  B41C2210/08 ,  B41C2210/22

Abstract: A lithographic printing plate precursor is disclosed including a support and a coating comprising (i) a photopolymerisable layer including a polymerisable compound and a photoinitiator, and a toplayer provided above the photopolymerisable layer; characterized in that the toplayer has a thickness comprised between 0.1 g/m2 and 1.75 g/m2 and includes an infrared absorbing compound which includes a thermocleavable group which transforms into a group which is a stronger electrondonor upon exposure to heat and/or IR radiation, and is capable of forming a printout image upon exposure to heat and/or IR radiation.

公开(公告)号：US11667115B2

公开(公告)日：2023-06-06

申请号：US16758876

申请日：2018-10-23

Applicant: AGFA OFFSET BV

Inventor： Rudolf Bartels

IPC: B41C1/10 ,  G06K15/02 ,  B41N1/14 ,  B41M5/00

CPC classification number: B41C1/10 ,  B41M5/0047 ,  B41N1/14 ,  G06K15/1836 ,  G06K15/1881

Abstract: A halftone raster image suitable for rendering a continuous-tone image includes a plurality of spiral dots. The spiral dots include image pixels arranged as a first arc or as a plurality of arcs which together represent a first spiral, and non-image pixels arranged as a second arc or as a plurality of arcs which together represent a second spiral. The spiral dots enable a controlled spreading of the ink within the dot, resulting in a higher image quality, ink saving, and faster drying.

公开(公告)号：US20220404697A1

公开(公告)日：2022-12-22

申请号：US17772035

申请日：2020-10-20

Applicant: AGFA OFFSET BV

Inventor： Thomas Billiet ,  Hubertus Van Aert ,  Janus Leenders ,  Kristof Heylen

IPC: G03F7/027

Abstract: A lithographic printing plate precursor including a support and a coating comprising a polymerisable compound, optionally a sensitizer, a photoinitiator and discrete particles is disclosed wherein the discrete particles comprise a crosslinked hydrophobic polymer backbone and a plurality of hydrophobic pendant grafts.

公开(公告)号：US11915072B2

公开(公告)日：2024-02-27

申请号：US17607534

申请日：2020-04-27

Applicant: AGFA OFFSET BV

Inventor： Rudolf Bartels

IPC: H04N1/405 ,  G06K15/02 ,  B41N1/14 ,  B41N3/00

CPC classification number: G06K15/1881 ,  B41N1/14 ,  B41N3/003 ,  H04N1/405 ,  G06K15/1836 ,  H04N1/4055 ,  H04N1/4056 ,  H04N1/4057

Abstract: A halftone raster image, suitable for rendering a continuous-tone image, which comprises a plurality of regularly tiled spiral dots. Said spiral dots comprise (i) image pixels arranged as a first arc (200) or as a plurality of arcs which together represent a first spiral (100), and (ii) non-image pixels arranged as a second arc (201) or as a plurality of arcs which together represent a second spiral (101), wherein neighbour halftone dots from said plurality of regularly tiled halftone dots represent a double spiral or triple spiral.

公开(公告)号：US20230211599A1

公开(公告)日：2023-07-06

申请号：US18008541

申请日：2021-05-25

Applicant: AGFA Offset BV

Inventor： Katleen Himschoot ,  Eva Vermeiren ,  Thomas Billiet ,  Fabienne Goethals

IPC: B41C1/10 ,  G03F7/031 ,  G03F7/09 ,  G03F7/30

CPC classification number: B41C1/1033 ,  G03F7/031 ,  G03F7/091 ,  G03F7/3035 ,  B41C2201/12 ,  B41C2210/04

Abstract: A lithographic printing plate precursor is disclosed which comprises a support, a photopolymerizable image recording layer and an overcoat which comprises a low-molecular radical inhibitor. After image-wise exposure, the plate is heated whereby the radical inhibitor diffuses from the overcoat to the image recording layer, resulting in an increase of the daylight stability of the exposed and heated precursor. Such plate is especially suitable for on-press processing.

公开(公告)号：US11584118B2

公开(公告)日：2023-02-21

申请号：US17292568

申请日：2019-10-21

Applicant: AGFA OFFSET BV

Inventor： Nicolas Vriamont ,  Thomas Billiet ,  Johan Loccufier ,  Elke Dom

IPC: B41C1/10 ,  C07C233/56 ,  G03F7/09

Abstract: A lithographic printing plate precursor including a photopolymerisable coating and an overcoat layer provided on top of said layer, characterized in that the overcoat layer includes a compound comprising at least one moiety having a structure according to Formula (I): (I).

公开(公告)号：US11568189B2

公开(公告)日：2023-01-31

申请号：US17264525

申请日：2019-04-30

Applicant: AGFA OFFSET BV

Inventor： Rudolf Bartels

IPC: G06K15/02 ,  H04N1/405 ,  B41C1/10 ,  B41N1/00 ,  B41F33/00 ,  B41M1/14 ,  B41M1/04 ,  B41M1/06

Abstract: A halftone raster image, suitable for rendering a continuous-tone image, which comprises a plurality of dots, arranged according a screen ruling and screen angle. Said dots comprise (i) image pixels arranged as a first arc or as a plurality of arcs which together represent a first spiral, and (ii) non-image pixels arranged as a second arc or as a plurality of arcs which together represent a second spiral. Small displacements of the feed point of said dots away from the theoretical centre of a halftone dot, defined by said screen ruling and screen angle, enable a higher image quality and less patterns in said halftone raster image.

公开(公告)号：US20240100820A1

公开(公告)日：2024-03-28

申请号：US18257321

申请日：2021-11-15

Applicant: AGFA Offset BV

Inventor： Thomas Billiet ,  Willem Cortens ,  Yves Defossez

IPC: B41F33/00 ,  B41C1/10

CPC classification number: B41F33/0045 ,  B41C1/1075 ,  B41C2210/04 ,  B41P2227/70 ,  B41P2233/11

Abstract: A method for setting up a lithographic printing press is provided which reduces the make-ready time of on-press developable printing plates so that less copies are wasted. The method uses an ‘ink boost’ at the startup of the press by presetting the inking system to a configuration whereby the amount of ink supplied to the plate is different from the amount prescribed by standard printing conditions. The ink boost can be positive or negative and can be made dependent on the difference in the image coverage between plates used in successive print jobs or on different paper types used in successive print jobs.