Flint Group Germany GmbH

Germany

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IPC Class
G03F 7/20 - Exposure; Apparatus therefor 20
G03F 7/36 - Imagewise removal not covered by groups , e.g. using gas streams, using plasma 10
B41C 1/05 - Heat-generating engraving heads, e.g. laser beam, electron beam 7
G03F 7/32 - Liquid compositions therefor, e.g. developers 7
B41C 1/00 - Forme preparation 6
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Registered / In Force 34
Found results for  patents

1.

METHOD FOR ASSEMBLING OR REMOVING A HOLLOW CYLINDER ON OR FROM A FURTHER CYLINDER AND ASSEMBLY AID

      
Application Number 17640165
Status Pending
Filing Date 2020-09-11
First Publication Date 2022-10-06
Owner FLINT GROUP GERMANY GMBH (Germany)
Inventor
  • Schwiertz, Martin
  • Müller, Uwe
  • Bennink, Klaus

Abstract

A method for assembling a hollow cylinder on, or removing a hollow cylinder from, a further cylinder. The hollow cylinder includes a body with openings for creating an air cushion within a first portion of a shell and a second portion of the shell is gas-impervious or has openings for creating an air cushion of a reduced quantity and/or size compared to the first portion. The openings are connected to a gas feed and a gas inlet inside the body. The further cylinder has openings on a shell and gas is fed though the openings via an internal gas supply. An assembly method includes providing the hollow cylinder, applying a seal to the first portion to prevent escape of gas from the first portion, providing the further cylinder, applying gas to the further cylinder so that gas escapes from the openings, and pushing the hollow cylinder onto the further cylinder.

IPC Classes  ?

  • B41F 27/10 - Devices for attaching printing elements or formes to supports for attaching non-deformable curved printing formes to forme cylinders

2.

Photosensitive composition

      
Application Number 17523070
Status Pending
Filing Date 2021-11-10
First Publication Date 2022-06-02
Owner Flint Group Germany GmbH (Germany)
Inventor
  • Paulöhrl, Thomas
  • Pietsch, Christian

Abstract

A photosensitive composition of a developable relief precursor includes at least one ethylenically unsaturated monomer as component E, at least one photoinitiator or photoinitiator system as component P, at least one water soluble and/or water dispersible binder as component B, and optionally, one or more additives as component A. Component E includes at least one ionic group and component E is present in an amount of 0.1 to 30 wt %, based on the total weight of the photosensitive composition.

IPC Classes  ?

  • G03F 7/039 - Macromolecular compounds which are photodegradable, e.g. positive electron resists
  • G03F 7/004 - Photosensitive materials
  • G03F 7/20 - Exposure; Apparatus therefor
  • G03F 7/32 - Liquid compositions therefor, e.g. developers

3.

PHOTOSENSITIVE COMPOSITION

      
Application Number 17523000
Status Pending
Filing Date 2021-11-10
First Publication Date 2022-06-02
Owner Flint Group Germany GmbH (Germany)
Inventor
  • Kunz, Martin
  • Pietsch, Christian

Abstract

A photosensitive composition of a developable relief precursor, comprising: at least one copolymer as component C, at least one ethylenically unsaturated compound as component U, at least one photoinitiator or photoinitiator system as component P, at least one water soluble and/or water dispersible binder as component B, wherein the at least one copolymer as component C is an at least partially hydrolyzed ethylene vinyl acetate copolymer, comprising —CH2—CH2— groups and wherein the content of said —CH2—CH2— groups in the partially hydrolyzed ethylene vinyl acetate copolymer is lower than 20 mol %, preferably lower than 15 mol %, more preferably lower than 10 mol %.

IPC Classes  ?

  • G03F 7/039 - Macromolecular compounds which are photodegradable, e.g. positive electron resists
  • G03F 7/038 - Macromolecular compounds which are rendered insoluble or differentially wettable

4.

Cylinder with movable pin, and mounting and dismounting method

      
Application Number 17282011
Grant Number 11420434
Status In Force
Filing Date 2019-10-15
First Publication Date 2021-11-18
Grant Date 2022-08-23
Owner FLINT GROUP GERMANY GMBH (Germany)
Inventor
  • Schwiertz, Martin
  • Schlapschi, Markus
  • Müller, Uwe
  • Bennink, Klaus

Abstract

A cylinder is arranged to receive one or more hollow cylinders on an outer surface of the cylinder. The cylinder has at least one movable stop with at least one movable element. In an idle position the at least one movable element does not protrude beyond the outer surface of the cylinder and allows hollow cylinders to be slid over the cylinder, and in an active position it protrudes beyond the outer surface of the cylinder and acts as a mechanical stop for hollow cylinders. The at least one movable element can be moved from the idle position to the active position, and vice versa, by means of a rotary movement. A method for positioning a hollow cylinder on a cylinder of this kind.

IPC Classes  ?

  • B41F 27/12 - Devices for attaching printing elements or formes to supports for attaching flexible printing formes
  • B41F 30/06 - Devices for attaching coverings or make-ready devices; Guiding devices for coverings attaching of endless or like continuously-fed coverings
  • B41F 13/16 - Registering devices with means for displacing the printing formes on the cylinders
  • B41F 27/00 - Devices for attaching printing elements or formes to supports
  • B41F 27/10 - Devices for attaching printing elements or formes to supports for attaching non-deformable curved printing formes to forme cylinders
  • B41F 27/14 - Devices for attaching printing elements or formes to supports for attaching printing formes to intermediate supports, e.g. adapter members

5.

METHOD FOR IDENTIFYING A RELIEF PRECURSOR FOR PRODUCING A RELIEF STRUCTURE

      
Application Number 16768682
Status Pending
Filing Date 2018-12-07
First Publication Date 2021-06-24
Owner Flint Group Germany GmbH (Germany)
Inventor
  • Muehlfeit, Markus
  • Bickert, Timo
  • Lennick, Ruediger
  • Knapp, Andrew

Abstract

A method for identifying a relief precursor or a relief comprising a carrier and a relief-forming layer, having the steps: a) providing a relief precursor comprising a carrier and a relief-forming layer; b) providing data which identifies the type of relief precursor and, if appropriate, contains process-relevant data for processing it, in the form of at least one two-dimensional code; c) introducing the at least one two-dimensional code into the relief-forming layer as a relief.

IPC Classes  ?

  • B41C 1/05 - Heat-generating engraving heads, e.g. laser beam, electron beam
  • G03F 7/20 - Exposure; Apparatus therefor

6.

Pneumatically clamping adapter sleeve

      
Application Number 16768719
Grant Number 11203197
Status In Force
Filing Date 2018-12-13
First Publication Date 2021-06-10
Grant Date 2021-12-21
Owner Flint Group Germany GmbH (Germany)
Inventor
  • Mueller, Uwe
  • Schlapschi, Markus

Abstract

Described herein is an adapter sleeve for adapting the internal diameter of cylindrical hollow cylinders to the external diameter of a cylindrical roller, comprising a sleeve body with (as viewed from the inside to the outside) a deformable base sleeve, optionally an intermediate layer and a top layer. The adapter sleeve furthermore contains a first gas distribution system and a second gas distribution system, which are connected to a gas inlet. The first gas distribution system is connected to at least one first gas outlet, which opens on an outer lateral surface of the adapter sleeve. The second gas distribution system has a cavity, which is designed, when supplied with a pressurized gas, to transmit pressure from the inside to the deformable base sleeve in such a way that the internal diameter of the sleeve body is reduced, at least in a partial region of the adapter sleeve, by a deformation of the base sleeve.

IPC Classes  ?

  • B41F 27/14 - Devices for attaching printing elements or formes to supports for attaching printing formes to intermediate supports, e.g. adapter members
  • B41F 27/12 - Devices for attaching printing elements or formes to supports for attaching flexible printing formes
  • B41F 27/10 - Devices for attaching printing elements or formes to supports for attaching non-deformable curved printing formes to forme cylinders

7.

Apparatus and method for developing printing precursors

      
Application Number 16768680
Grant Number 11422467
Status In Force
Filing Date 2018-12-07
First Publication Date 2021-03-04
Grant Date 2022-08-23
Owner Flint Group Germany GmbH (Germany)
Inventor
  • Brinkmann, Axel
  • Dietz, Gernot

Abstract

The present invention relates to an apparatus (10) for developing printing precursors (11) comprising a developing station (20) comprising a rotating drum (22) having a fixation mechanism (24) for the precursor (11) and at least one brush (26). The apparatus (10) further comprises a pre-cleaning station (30) and a first transport mechanism (12), the first transport mechanism (12) being configured for transporting the precursor (11) through the pre-cleaning station (30) and, after the precursor (11) has passed the pre-cleaning station (30), to the developing station (20). Further aspects relate to a method for developing a printing precursor using such an apparatus.

IPC Classes  ?

  • G03F 7/30 - Imagewise removal using liquid means
  • B41N 1/12 - Printing plates or foils; Materials therefor non-metallic other than stone

8.

Relief precursor having low cupping and fluting

      
Application Number 16754572
Grant Number 11822246
Status In Force
Filing Date 2018-10-05
First Publication Date 2020-11-05
Grant Date 2023-11-21
Owner Flint Group Germany GmbH (Germany)
Inventor
  • Beyer, Matthias
  • Becker, Armin

Abstract

characterized in that the layer (C) and optionally the layer (D) comprise at least one second ethylenically unsaturated monomer.

IPC Classes  ?

  • G03F 7/095 - Photosensitive materials - characterised by structural details, e.g. supports, auxiliary layers having more than one photosensitive layer
  • G03F 7/20 - Exposure; Apparatus therefor
  • G03F 7/033 - Non-macromolecular photopolymerisable compounds having carbon-to-carbon double bonds, e.g. ethylenic compounds with binders the binders being polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds, e.g. vinyl polymers
  • G03F 7/36 - Imagewise removal not covered by groups , e.g. using gas streams, using plasma

9.

Method for the production of functionalized partially hydrolyzed polyvinyl acetate

      
Application Number 16768149
Grant Number 11498988
Status In Force
Filing Date 2018-11-29
First Publication Date 2020-10-08
Grant Date 2022-11-15
Owner Flint Group Germany GmbH (Germany)
Inventor
  • Pietsch, Christian
  • Telser, Thomas
  • Hartmann, Caroline
  • Krauss, Uwe
  • Baier, Moritz C.

Abstract

A method for the production of functionalized partially hydrolyzed polyvinyl acetate comprising vinyl alcohol, vinylacetate and functionalized vinyl alcohol units by reacting in a melt a partially hydrolyzed polyvinyl acetate as component A with a reactive compound carrying at least one ethylenically unsaturated group and at least one reactive group reactive with hydroxyl or acetate groups as component B, in the presence of at least one stabilizer as component C and in the presence of at least one catalyst selected from the group consisting of tertiary amines and nitrogen-containing heterocycles as component D, the method comprising the steps: feeding the components into a mixing device capable of heating, melting and mixing components A, B, C and D, heating, melting and mixing components A, B, C and D in the device to give a melt and reacting components A and B in the melt.

IPC Classes  ?

10.

Low-vibration cylinder

      
Application Number 16793625
Grant Number 11890857
Status In Force
Filing Date 2020-02-18
First Publication Date 2020-08-20
Grant Date 2024-02-06
Owner Flint Group Germany GmbH (Germany)
Inventor
  • Schwiertz, Martin
  • Müller, Uwe
  • Bennink, Klaus

Abstract

The invention relates to a cylinder (10) which is set up for application of at least one hollow cylinder, the cylinder (10) having a layer structure which comprises in this order, from inside to outside, a base layer (12) or a cylinder core, a first compressible layer (14), a filling layer (16), an interlayer (18), a second compressible layer (20) and an outer layer (22), the outer layer forming a lateral surface of the cylinder. The invention further relates to arrangements comprising at least one such cylinder (10) and further cylinders.

IPC Classes  ?

  • B41F 3/54 - Impression cylinders; Supports therefor
  • B32B 1/08 - Tubular products
  • B32B 5/18 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by features of a layer containing foamed or specifically porous material
  • B32B 25/08 - Layered products essentially comprising natural or synthetic rubber comprising rubber as the main or only constituent of a layer, next to another layer of a specific substance of synthetic resin
  • B32B 25/14 - Layered products essentially comprising natural or synthetic rubber comprising copolymers in which synthetic rubber constituents predominate
  • B32B 27/06 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance
  • B32B 27/18 - Layered products essentially comprising synthetic resin characterised by the use of special additives
  • B32B 27/40 - Layered products essentially comprising synthetic resin comprising polyurethanes

11.

Method for thermally developing relief precursors

      
Application Number 16577296
Grant Number 11718085
Status In Force
Filing Date 2019-09-20
First Publication Date 2020-03-26
Grant Date 2023-08-08
Owner Flint Group Germany GmbH (Germany)
Inventor
  • Fronczkiewicz, Peter
  • Knapp, Andrew
  • Wendland, Torben
  • Kunz, Martin

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.

IPC Classes  ?

  • B41C 1/055 - Thermographic processes for producing formes
  • G03F 7/36 - Imagewise removal not covered by groups , e.g. using gas streams, using plasma
  • G03F 7/038 - Macromolecular compounds which are rendered insoluble or differentially wettable
  • G03F 7/039 - Macromolecular compounds which are photodegradable, e.g. positive electron resists

12.

Method for producing pictorial relief structures

      
Application Number 16498039
Grant Number 11325368
Status In Force
Filing Date 2017-03-27
First Publication Date 2020-02-20
Grant Date 2022-05-10
Owner Flint Group Germany GmbH (Germany)
Inventor
  • Telser, Thomas
  • Beyer, Matthias
  • Fleischer, Daniel
  • May, Claudia

Abstract

The invention relates to a method for producing pictorial relief structures on a layer construction. The method comprises the provision of a layer construction having a substrate layer. After this, at least one fluid containing at least one first reactive component is applied pictorially to the substrate, wherein the pictorial application takes place in the form of a plurality of droplets with a droplet volume of less than 2 μl, and wherein the droplets are positioned pictorially. After this, there is an at least partial diffusing of the at least one first reactive component into the substrate layer for a predefined exposure time and/or an at least partial diffusing of at least one second reactive component into the pictorially positioned droplets of fluid for a predefined exposure time, wherein the substrate layer comprises the at least one second reactive component. The created relief is then fixed under the influence of heat and/or radiation via a reaction involving the first reactive component and/or the second reactive component. Further aspects of the invention relate to a pictorial relief structure produced according to the method and to the use of the pictorial relief structure as a printing form, as a microfluidic component, as a microreactor, as a phoretic cell, as a light-controlling element for color representation, as photonic crystals or as flexible parts of items of clothing.

IPC Classes  ?

  • B41C 1/00 - Forme preparation
  • G03F 7/033 - Non-macromolecular photopolymerisable compounds having carbon-to-carbon double bonds, e.g. ethylenic compounds with binders the binders being polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds, e.g. vinyl polymers
  • G03F 7/20 - Exposure; Apparatus therefor
  • G03F 7/36 - Imagewise removal not covered by groups , e.g. using gas streams, using plasma
  • B41C 1/05 - Heat-generating engraving heads, e.g. laser beam, electron beam
  • C09D 11/101 - Inks specially adapted for printing processes involving curing by wave energy or particle radiation, e.g. with UV-curing following the printing

13.

Light exposure device and method for exposing plate-shaped materials to light

      
Application Number 16463024
Grant Number 11007767
Status In Force
Filing Date 2017-11-27
First Publication Date 2020-01-23
Grant Date 2021-05-18
Owner Flint Group Germany GmbH (Germany)
Inventor Boyksen, Frank

Abstract

The invention relates to an exposure apparatus (1) for exposing plate-shaped materials (2). The plate-shaped material (2) has a first side (3) and a second side (4) that lies opposite the first side (3). The exposure apparatus (1) comprises a first exposure unit (10) and a conveyor unit (30), wherein the first exposure unit (10) comprises at least one segment with a light source and has an embodiment so as to be rotatable about an axis (14), and the first exposure unit (10) and the conveyor unit (30) are configured in such a way that the first side (3) of the plate-shaped material (2) is supplied for an exposure in a first position (11) of the exposure unit (10) and the second side (4) of the plate-shaped material (2) is supplied for an exposure in a second position (12) of the exposure unit (10). Further aspects of the invention relate to methods for exposing plate-shaped material and a printing plate that was produced from a plate-shaped material according to any one of the methods.

IPC Classes  ?

  • B41C 1/05 - Heat-generating engraving heads, e.g. laser beam, electron beam
  • G03F 7/20 - Exposure; Apparatus therefor
  • B41N 1/12 - Printing plates or foils; Materials therefor non-metallic other than stone

14.

Radiatioin-curable mixture containing low-functionalised, partially saponified polyvinyl acetate

      
Application Number 16482041
Grant Number 11914293
Status In Force
Filing Date 2018-01-26
First Publication Date 2019-12-26
Grant Date 2024-02-27
Owner Flint Group Germany GmbH (Germany)
Inventor
  • Pietsch, Christian
  • Becker, Armin
  • Krauss, Uwe
  • Telser, Thomas

Abstract

a) at least one functionalized, part-hydrolyzed polyvinyl acetate comprising (i) vinyl alcohol units, (ii) vinyl acetate units, and (iii) vinyl acrylate units, where the vinyl acrylate units, which can be substituted, have the general structure wherein the amount of vinyl acrylate units (iii) in the functionalized, part-hydrolyzed polyvinyl acetate a), based on all the units (i), (ii), and (iii), is 0.1 to <3 mol %, and component D comprises an additive capable of hydrogen bonding, in an amount of 0.001 to 30 wt %, based on the sum of components A to D.

IPC Classes  ?

  • G03F 7/038 - Macromolecular compounds which are rendered insoluble or differentially wettable
  • C08L 31/04 - Homopolymers or copolymers of vinyl acetate
  • C08L 71/08 - Polyethers derived from hydroxy compounds or from their metallic derivatives
  • C08L 75/04 - Polyurethanes
  • C08L 79/02 - Polyamines
  • G03F 7/11 - Photosensitive materials - characterised by structural details, e.g. supports, auxiliary layers having cover layers or intermediate layers, e.g. subbing layers
  • G03F 7/20 - Exposure; Apparatus therefor

15.

Cylinder having a partially gas-permeable surface

      
Application Number 16098459
Grant Number 10538078
Status In Force
Filing Date 2017-05-08
First Publication Date 2019-05-16
Grant Date 2020-01-21
Owner Flint Group Germany GmbH (Germany)
Inventor
  • Schwiertz, Martin
  • Bennink, Klaus
  • Müller, Uwe
  • Leinenbach, Alfred
  • Schnell, Martin

Abstract

A cylinder (10) comprising a cylindrical body (11) is provided. A first proportion of the circumferential face (48) of the cylindrical body (11) is of porous and gas-permeable configuration and a second proportion of the circumferential face (48) of the cylindrical body (11) is of gas-impermeable configuration, wherein the porous, gas-permeable first proportion of the circumferential face (48) is in communication with at least one gas supply line and wherein the first proportion of the circumferential face (48) amounts to at least 0.1% and at most 50%. Further, a corresponding adapter sleeve and a corresponding printing forme cylinder are provided.

IPC Classes  ?

  • B41F 27/14 - Devices for attaching printing elements or formes to supports for attaching printing formes to intermediate supports, e.g. adapter members
  • B41F 13/10 - Forme cylinders
  • B41F 27/10 - Devices for attaching printing elements or formes to supports for attaching non-deformable curved printing formes to forme cylinders
  • B41F 5/24 - Rotary letterpress machines for flexographic printing
  • B41F 25/00 - Devices for pressing sheets or webs against cylinders, e.g. for smoothing purposes

16.

Method for producing flexographic printing plates using UV-LED irradiation

      
Application Number 16142225
Grant Number 10730283
Status In Force
Filing Date 2018-09-26
First Publication Date 2019-01-24
Grant Date 2020-08-04
Owner Flint Group Germany GmbH (Germany)
Inventor
  • Schadebrodt, Jens
  • Becker, Armin
  • Stebani, Uwe
  • Thate, Maximilian

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. Step (b) includes (1) exposure with actinic light with an intensity of ≥100 mW/cm2 from a plurality of UV-LEDs and (2) exposure with actinic light with an intensity of <100 mW/cm2 from a UV radiation source other than UV-LEDs.

IPC Classes  ?

  • B41C 1/10 - Forme preparation for lithographic printing; Master sheets for transferring a lithographic image to the forme
  • G03F 1/68 - Preparation processes not covered by groups
  • G03F 7/20 - Exposure; Apparatus therefor
  • G03F 7/027 - Non-macromolecular photopolymerisable compounds having carbon-to-carbon double bonds, e.g. ethylenic compounds
  • G03F 7/11 - Photosensitive materials - characterised by structural details, e.g. supports, auxiliary layers having cover layers or intermediate layers, e.g. subbing layers
  • G03F 7/32 - Liquid compositions therefor, e.g. developers
  • G03F 7/36 - Imagewise removal not covered by groups , e.g. using gas streams, using plasma

17.

Method for generative production of relief printing plates by monomer diffusion through an integral mask layer

      
Application Number 16064092
Grant Number 10824072
Status In Force
Filing Date 2016-12-19
First Publication Date 2018-12-27
Grant Date 2020-11-03
Owner Flint Group Germany GmbH (Germany)
Inventor
  • Telser, Thomas
  • Beyer, Matthias
  • Fleischer, Daniel

Abstract

The invention relates to a method for generative production of relief printing plates, wherein a support with a polymeric substrate layer and a laser-ablatable mask layer is provided, the polymeric substrate layer containing a first binder. A mask with openings corresponding to pixels is produced by imagewise laser ablation of the mask layer. A liquid containing a reactive monomer is then applied over the surface of the mask-covered polymeric substrate layer, and the liquid or the reactive monomer diffuses through the openings of the mask into the polymeric substrate layer for a defined exposure time so as to form a relief. The excess liquid or the excess monomer and optionally the mask are removed from the surface, and the resulting relief is fixed by crosslinking.

IPC Classes  ?

  • G03F 7/12 - Production of screen printing forms or similar printing forms, e.g. stencils
  • G03F 7/32 - Liquid compositions therefor, e.g. developers
  • G03F 7/00 - Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printed surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
  • G03F 7/033 - Non-macromolecular photopolymerisable compounds having carbon-to-carbon double bonds, e.g. ethylenic compounds with binders the binders being polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds, e.g. vinyl polymers
  • G03F 7/032 - Non-macromolecular photopolymerisable compounds having carbon-to-carbon double bonds, e.g. ethylenic compounds with binders
  • B29C 35/08 - Heating or curing, e.g. crosslinking or vulcanising by wave energy or particle radiation

18.

Method for the additive production of relief printing plates

      
Application Number 15769560
Grant Number 11498325
Status In Force
Filing Date 2016-10-21
First Publication Date 2018-10-25
Grant Date 2022-11-15
Owner Flint Group Germany GmbH (Germany)
Inventor
  • Telser, Thomas
  • Freudenthaler, Eva

Abstract

where in step a) the liquid is applied in accordance with an image to the surface and where, after the prescribed exposure time of step b), any liquid that remains on the surface, having not diffused into the material, is removed from the surface, and in step c) the relief that is hardened comprises the polymer of the substrate layer and reactive monomer that has diffused into the material.

IPC Classes  ?

  • B41C 1/00 - Forme preparation
  • G03F 7/00 - Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printed surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
  • G03F 7/027 - Non-macromolecular photopolymerisable compounds having carbon-to-carbon double bonds, e.g. ethylenic compounds
  • G03F 7/20 - Exposure; Apparatus therefor

19.

Apparatus and method for producing flexographic printing plates

      
Application Number 15506088
Grant Number 10691021
Status In Force
Filing Date 2015-08-27
First Publication Date 2018-08-02
Grant Date 2020-06-23
Owner Flint Group Germany GmbH (Germany)
Inventor
  • Dietz, Gernot
  • Mühlfeit, Markus
  • Boyksen, Frank

Abstract

A device for producing flexographic printing plates starting from digitally imagable flexographic printing elements, with which at least the method steps of reverse exposure, main exposure, development using washout media, drying, and aftertreatment can be carried out in automated form, the device comprising at least two different transport devices with which the flexographic printing elements or plates, respectively, are transported through the device. A method for producing flexographic printing plates using said device.

IPC Classes  ?

  • G03F 7/30 - Imagewise removal using liquid means
  • G03F 7/20 - Exposure; Apparatus therefor
  • B41C 1/10 - Forme preparation for lithographic printing; Master sheets for transferring a lithographic image to the forme
  • B41C 1/00 - Forme preparation

20.

Laser-ablatable mask film

      
Application Number 15744553
Grant Number 11106136
Status In Force
Filing Date 2016-07-14
First Publication Date 2018-07-19
Grant Date 2021-08-31
Owner Flint Group Germany GmbH (Germany)
Inventor
  • Mühlfeit, Markus
  • Leinenbach, Alfred
  • Unglaube, Jochen

Abstract

The invention relates to a laser-ablatable mask film for the exposing of relief printing plates and screen printing stencils, comprising at least (i) a dimensionally stable base sheet, (ii) a UV-transparent adhesion layer, and (iii) a laser-ablatable mask layer, characterized in that the laser-ablatable mask layer (iii) comprises a) a binder comprising a crosslinked polyvinyl alcohol, b) a material which absorbs UV/VIS light and IR light, and c) optionally an inorganic filler.

IPC Classes  ?

  • G03F 7/20 - Exposure; Apparatus therefor
  • G03F 7/039 - Macromolecular compounds which are photodegradable, e.g. positive electron resists
  • B41M 5/24 - Ablative recording, e.g. by burning marks; Spark recording
  • G03F 7/34 - Imagewise removal by selective transfer, e.g. peeling away
  • G03F 7/36 - Imagewise removal not covered by groups , e.g. using gas streams, using plasma
  • G03F 7/40 - Treatment after imagewise removal, e.g. baking
  • G03F 7/16 - Coating processes; Apparatus therefor
  • G03F 1/68 - Preparation processes not covered by groups

21.

Laser-engravable pad printing plate

      
Application Number 15571099
Grant Number 10792909
Status In Force
Filing Date 2016-05-03
First Publication Date 2018-07-05
Grant Date 2020-10-06
Owner Flint Group Germany GmbH (Germany)
Inventor
  • Mühlfeit, Markus
  • Leinenbach, Alfred
  • Unglaube, Jochen

Abstract

(c5) 0 to 10 wt % of further additives.

IPC Classes  ?

  • B41C 1/05 - Heat-generating engraving heads, e.g. laser beam, electron beam
  • B41N 1/20 - Curved printing plates, especially cylinders made of metal
  • B23K 26/364 - Laser etching for making a groove or trench, e.g. for scribing a break initiation groove
  • B32B 15/09 - Layered products essentially comprising metal comprising metal as the main or only constituent of a layer, next to another layer of a specific substance of synthetic resin comprising polyesters
  • B32B 27/36 - Layered products essentially comprising synthetic resin comprising polyesters
  • B32B 37/18 - Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with all layers existing as coherent layers before laminating involving the assembly of discrete sheets or panels only
  • B41M 1/10 - Intaglio printing
  • B41M 1/40 - Printing on bodies of particular shapes
  • B32B 15/18 - Layered products essentially comprising metal comprising iron or steel
  • B41F 17/00 - Printing apparatus or machines of special types or for particular purposes, not otherwise provided for
  • B41N 1/06 - Printing plates or foils; Materials therefor metallic for relief printing or intaglio printing

22.

Digitally imageable flexo-printing plate with integrated barrier layer

      
Application Number 15577103
Grant Number 10518571
Status In Force
Filing Date 2016-05-24
First Publication Date 2018-06-21
Grant Date 2019-12-31
Owner FLINT GROUP GERMANY GmbH (Germany)
Inventor
  • Beyer, Matthias
  • Becker, Armin

Abstract

A digitally imageable, photopolymerizable flexographic printing element that includes, disposed one above another in order, at least a dimensionally stable support, at least one photopolymerizable, relief-forming layer having a layer thickness of 300-6000 μm, including at least one elastomeric binder, an ethylenically unsaturated monomer, and a photoinitiator or a photoinitiator system, an oxygen-blocking barrier layer which is transparent to UVA light and has a layer thickness of 0.3-5 μm, a laser-ablatable mask layer having a layer thickness of 0.3-5 μm, including at least one elastomeric binder and a material which absorbs UV/VIS light, and a removable outer film, wherein the at least one relief-forming layer, the barrier layer and the mask layer are soluble or dispersible in an organic solvent, and the barrier layer includes at least one oxygen-blocking binder and an oligomeric or polymeric basic adhesion component.

IPC Classes  ?

  • G03F 7/20 - Exposure; Apparatus therefor
  • B41N 1/12 - Printing plates or foils; Materials therefor non-metallic other than stone
  • G03F 7/11 - Photosensitive materials - characterised by structural details, e.g. supports, auxiliary layers having cover layers or intermediate layers, e.g. subbing layers
  • G03F 7/004 - Photosensitive materials
  • G03F 7/09 - Photosensitive materials - characterised by structural details, e.g. supports, auxiliary layers
  • B41C 1/00 - Forme preparation

23.

Automated UV-LED exposure of flexographic printing plates

      
Application Number 15860795
Grant Number 10632733
Status In Force
Filing Date 2018-01-03
First Publication Date 2018-05-10
Grant Date 2020-04-28
Owner Flint Group Germany GmbH (Germany)
Inventor Boyksen, Frank

Abstract

Method for producing flexographic printing plates from a photopolymerizable flexographic printing plate with a dimensionally stable support, photopolymerizable, relief-forming layer(s), and a digitally imagable layer. The method comprises (a) producing a mask by imaging the digitally imagable layer, (b) exposing the flexographic printing plate with a plurality of UV-LEDs on a UV-LED strip through the mask with actinic light, and photopolymerizing the image regions of the layer, and (c) developing the photopolymerized layer. In the UV-LED strip or in a separate strip, at least one ultrasonic sensor is arranged for determining the thickness of the flexographic printing plate for exposure. Depending on the measured thickness of the flexographic printing plate, the exposing of the flexographic printing plate is controlled in respect of: (i) number of exposure steps, exposure intensity, energy input per exposure step, duration of the individual exposure steps, and/or overall duration of exposure.

IPC Classes  ?

  • G03F 7/36 - Imagewise removal not covered by groups , e.g. using gas streams, using plasma
  • B41C 1/10 - Forme preparation for lithographic printing; Master sheets for transferring a lithographic image to the forme
  • G03F 7/20 - Exposure; Apparatus therefor

24.

Method for producing a flexographic printing frame through multiple exposures using UV LEDS

      
Application Number 15536565
Grant Number 10175580
Status In Force
Filing Date 2015-12-16
First Publication Date 2018-01-04
Grant Date 2019-01-08
Owner Flint Group Germany GmbH (Germany)
Inventor
  • Fronczkiewicz, Peter
  • Wendland, Thorben
  • Beyer, Matthias

Abstract

2.

IPC Classes  ?

  • G03F 7/32 - Liquid compositions therefor, e.g. developers
  • G03F 7/36 - Imagewise removal not covered by groups , e.g. using gas streams, using plasma
  • G03F 7/027 - Non-macromolecular photopolymerisable compounds having carbon-to-carbon double bonds, e.g. ethylenic compounds
  • G03F 7/20 - Exposure; Apparatus therefor

25.

Flexographic printing elements that can be dried rapidly

      
Application Number 15315161
Grant Number 10437152
Status In Force
Filing Date 2015-06-02
First Publication Date 2017-07-13
Grant Date 2019-10-08
Owner Flint Group Germany GmbH (Germany)
Inventor
  • Becker, Armin
  • Unglaube, Jochen
  • Wochele, Andrea

Abstract

Photopolymerizable, preferably digitally imageable photopolymerizable, flexographic printing elements having a PET support sheet of low thermal shrinkage, methods of preparing such flexographic printing elements and their use for making flexographic printing plates by imagewise exposure to light, washing out with organic solvents and drying, wherein said drying is carried out at temperatures of more than 60° C.

IPC Classes  ?

  • G03F 7/20 - Exposure; Apparatus therefor
  • G03F 7/09 - Photosensitive materials - characterised by structural details, e.g. supports, auxiliary layers
  • G03F 7/26 - Processing photosensitive materials; Apparatus therefor
  • G03F 7/30 - Imagewise removal using liquid means
  • G03F 7/34 - Imagewise removal by selective transfer, e.g. peeling away
  • G03F 7/40 - Treatment after imagewise removal, e.g. baking
  • B41F 5/24 - Rotary letterpress machines for flexographic printing

26.

Automated UV-LED exposure of flexographic printing plates

      
Application Number 15015744
Grant Number 09889640
Status In Force
Filing Date 2016-02-04
First Publication Date 2016-08-11
Grant Date 2018-02-13
Owner Flint Group Germany GmbH (Germany)
Inventor Boyksen, Frank

Abstract

Described is a method for producing flexographic printing plates, using as starting material a photopolymerizable flexographic printing plate which contains a dimensionally stable support, a photopolymerizable, relief-forming layer, and a digitally imagable layer. A mask is produced by imaging the digitally imagable layer. The printing plate is exposed with actinic light through the mask. The image regions of the layer are photopolymerized. A plurality of UV-LEDs are arranged on at least one UV-LED strip which is moved relative to the surface of the flexographic printing plate for exposure. The photopolymerized layer is developed by washing out and drying or by thermal development. An ultrasonic sensor determines the thickness of the flexographic printing plate for exposure. The exposure is controlled as to number of exposure steps, exposure intensity, energy input per exposure step, duration of individual exposure steps, and/or overall duration of exposure.

IPC Classes  ?

  • G03F 7/20 - Exposure; Apparatus therefor
  • B41C 1/10 - Forme preparation for lithographic printing; Master sheets for transferring a lithographic image to the forme

27.

Digitally exposable flexographic printing element and method for producing flexographic printing plates

      
Application Number 15022660
Grant Number 09789679
Status In Force
Filing Date 2014-09-18
First Publication Date 2016-08-11
Grant Date 2017-10-17
Owner Flint Group Germany GmbH (Germany)
Inventor
  • Stebani, Uwe
  • Becker, Armin
  • Beyer, Matthias
  • Riewe, Denis
  • Reifschneider, Andreas

Abstract

Digitally imagable flexographic printing elements for producing flexographic printing plates, which comprise an organically soluble relief-forming layer, a water-soluble barrier layer for oxygen, and a water-soluble laser-ablatable mask layer. A method for producing flexographic printing plates using such flexographic printing elements, which comprises a two-stage washout procedure using aqueous and organic washout media.

IPC Classes  ?

  • G03F 7/40 - Treatment after imagewise removal, e.g. baking
  • B41C 1/00 - Forme preparation
  • G03F 7/09 - Photosensitive materials - characterised by structural details, e.g. supports, auxiliary layers
  • G03F 7/20 - Exposure; Apparatus therefor
  • G03F 7/30 - Imagewise removal using liquid means

28.

Device and method for the in-line production of flexographic printing plates

      
Application Number 15024650
Grant Number 09937703
Status In Force
Filing Date 2014-09-30
First Publication Date 2016-07-21
Grant Date 2018-04-10
Owner Flint Group Germany GmbH (Germany)
Inventor
  • Stebani, Uwe
  • Dietz, Gernot

Abstract

A device for automated implementation of preliminary reverse exposure, main exposure, and development of digitally imagable flexographic printing elements, and a method for producing flexographic printing plates starting from digitally imaged flexographic printing elements, using said apparatus.

IPC Classes  ?

  • G03F 7/36 - Imagewise removal not covered by groups , e.g. using gas streams, using plasma
  • B41C 1/055 - Thermographic processes for producing formes
  • G03F 7/20 - Exposure; Apparatus therefor

29.

Process of manufacturing flexographic printing forms

      
Application Number 14905527
Grant Number 09671695
Status In Force
Filing Date 2014-07-14
First Publication Date 2016-06-02
Grant Date 2017-06-06
Owner Flint Group Germany GmbH (Germany)
Inventor
  • Fronczkiewicz, Peter
  • Becker, Armin

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.

IPC Classes  ?

  • G03F 7/20 - Exposure; Apparatus therefor
  • G03F 7/09 - Photosensitive materials - characterised by structural details, e.g. supports, auxiliary layers
  • G03F 7/32 - Liquid compositions therefor, e.g. developers
  • G03F 7/36 - Imagewise removal not covered by groups , e.g. using gas streams, using plasma
  • G03F 7/40 - Treatment after imagewise removal, e.g. baking

30.

Method for producing cylindrical flexo printing elements

      
Application Number 14897839
Grant Number 10953648
Status In Force
Filing Date 2014-06-12
First Publication Date 2016-05-19
Grant Date 2021-03-23
Owner Flint Group Germany GmbH (USA)
Inventor
  • Stebani, Uwe
  • Bedat, Joelle
  • Becker, Armin
  • Leinenbach, Alfred
  • May, Claudia
  • Arnold, Christian
  • Rothen, Josef

Abstract

Methods for producing cylindrical flexographic printing elements, the cylindrical flexographic printing elements having a relief-forming layer, and the relief-forming layer being produced by successive application of a plurality of layers of a relief-forming material in liquid melt form, preferably of a photopolymerizable material in liquid melt form, to a rotating cylindrical sleeve in a continuous process.

IPC Classes  ?

  • B41C 1/00 - Forme preparation
  • G03F 7/18 - Coating curved surfaces
  • B05D 3/12 - Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by mechanical means
  • B05D 7/00 - Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
  • B41N 1/22 - Curved printing plates, especially cylinders made of other substances
  • B41C 1/05 - Heat-generating engraving heads, e.g. laser beam, electron beam

31.

Flexographic printing element which can be digitally imaged and has a polar, ultra-thin barrier layer

      
Application Number 14897880
Grant Number 09671696
Status In Force
Filing Date 2014-06-12
First Publication Date 2016-05-12
Grant Date 2017-06-06
Owner Flint Group Germany GmbH (Germany)
Inventor
  • Becker, Armin
  • Beyer, Matthias
  • Reifschneider, Andreas
  • Riewe, Denis
  • Stebani, Uwe

Abstract

Digital imageable flexographic printing elements for producing flexographic printing plates, which are developable using hydrocarbon-comprising washout media and which, between the photopolymerizable layer and the digital imageable layer, have a polar, ultrathin, oxygen-blocking barrier layer. Methods for producing flexographic printing plates using such digital imageable flexographic printing elements, by imaging, exposing, washing out, drying, and post-treating, the washout being formed by means of hydrocarbon-comprising washout media.

IPC Classes  ?

  • B41N 1/12 - Printing plates or foils; Materials therefor non-metallic other than stone
  • G03F 7/40 - Treatment after imagewise removal, e.g. baking
  • G03F 7/09 - Photosensitive materials - characterised by structural details, e.g. supports, auxiliary layers
  • G03F 7/32 - Liquid compositions therefor, e.g. developers

32.

Photopolymerizable flexographic printing elements for printing with UV inks

      
Application Number 14145378
Grant Number 09939726
Status In Force
Filing Date 2013-12-31
First Publication Date 2014-04-24
Grant Date 2018-04-10
Owner Flint Group Germany GmbH (Germany)
Inventor
  • Stebani, Uwe
  • Döttinger, Stefanie

Abstract

Photopolymerizable flexographic printing elements which contain cyclohexanepolycarboxylic esters as plasticizers and also their use for producing flexographic printing forms for printing with UV inks, in particular for UV narrow web printing.

IPC Classes  ?

  • G03F 7/00 - Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printed surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
  • G03F 7/004 - Photosensitive materials
  • B41C 1/05 - Heat-generating engraving heads, e.g. laser beam, electron beam
  • B41N 1/12 - Printing plates or foils; Materials therefor non-metallic other than stone
  • G03F 7/033 - Non-macromolecular photopolymerisable compounds having carbon-to-carbon double bonds, e.g. ethylenic compounds with binders the binders being polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds, e.g. vinyl polymers
  • B41C 1/02 - Engraving; Heads therefor

33.

Method for producing flexographic printing plates using UV-LED irradiation

      
Application Number 13810738
Grant Number 10112381
Status In Force
Filing Date 2011-07-12
First Publication Date 2013-09-19
Grant Date 2018-10-30
Owner Flint Group Germany GmbH (Germany)
Inventor
  • Schadebrodt, Jens
  • Becker, Armin
  • Stebani, Uwe
  • Thate, Maximilian

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. Step (b) includes (1) exposure with actinic light with an intensity of ≥100 mW/cm2 from a plurality of UV-LEDs and (2) exposure with actinic light with an intensity of <100 mW/cm2 from a UV radiation source other than UV-LEDs.

IPC Classes  ?

  • B41C 1/10 - Forme preparation for lithographic printing; Master sheets for transferring a lithographic image to the forme
  • G03F 1/68 - Preparation processes not covered by groups
  • G03F 7/20 - Exposure; Apparatus therefor
  • G03F 7/027 - Non-macromolecular photopolymerisable compounds having carbon-to-carbon double bonds, e.g. ethylenic compounds
  • G03F 7/11 - Photosensitive materials - characterised by structural details, e.g. supports, auxiliary layers having cover layers or intermediate layers, e.g. subbing layers
  • G03F 7/32 - Liquid compositions therefor, e.g. developers
  • G03F 7/36 - Imagewise removal not covered by groups , e.g. using gas streams, using plasma

34.

Device and method for producing flexographic printing sleeves

      
Application Number 13698080
Grant Number 08770107
Status In Force
Filing Date 2011-05-16
First Publication Date 2013-04-18
Grant Date 2014-07-08
Owner Fling Group Germany GmbH (Germany)
Inventor Dietz, Gernot

Abstract

Device for producing flexographic printing sleeves starting from photopolymerizable sleeves comprising at least a clean-out unit, a drying unit, and a post-exposure unit, wherein the flexographic printing sleeves are transported within the apparatus by means of a transport device, wherein the sleeves are mounted dually translationally in the longitudinal direction in the transport device, and a method for the production of flexographic printing sleeves using said device.

IPC Classes  ?

  • B65G 49/02 - Conveying systems characterised by their application for specified purposes not otherwise provided for for conveying workpieces through baths of liquid

35.

Photopolymerizable flexographic printing elements for printing with UV inks

      
Application Number 12993182
Grant Number 08685624
Status In Force
Filing Date 2009-05-13
First Publication Date 2011-10-20
Grant Date 2014-04-01
Owner Flint Group Germany GmbH (Germany)
Inventor
  • Döttinger, Stefanie
  • Stebani, Uwe

Abstract

Photopolymerizable flexographic printing elements which contain cyclohexanepolycarboxylic esters as plasticizers and also their use for producing flexographic printing forms for printing with UV inks, in particular for UV narrow web printing.

IPC Classes  ?

  • B41G 7/00 - Auxiliary perforating apparatus associated with printing devices
  • G03F 7/00 - Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printed surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
  • G03F 7/20 - Exposure; Apparatus therefor

36.

Photopolymerisable layered composite for producing flexo printing elements

      
Application Number 12305817
Grant Number 09599902
Status In Force
Filing Date 2007-06-18
First Publication Date 2011-09-08
Grant Date 2017-03-21
Owner Flint Group Germany GmbH (Germany)
Inventor
  • Becker, Armin
  • Stebani, Uwe
  • Schadebrodt, Jens
  • Krauss, Uwe

Abstract

the relief-forming layer a) having a hardness of 30 to 70° Shore A and the elastomeric substrate layer b) having a hardness of 75° Shore A to 70° Shore D in each case in the photopolymerized state, and the layer b) having a hardness of at least 5° Shore A greater than the layer a).

IPC Classes  ?

  • G03F 7/00 - Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printed surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
  • G03F 7/095 - Photosensitive materials - characterised by structural details, e.g. supports, auxiliary layers having more than one photosensitive layer
  • G03F 7/09 - Photosensitive materials - characterised by structural details, e.g. supports, auxiliary layers
  • G03F 7/18 - Coating curved surfaces

37.

Photopolymerizable flexographic printing elements and hard flexographic printing formes which are produced therefrom

      
Application Number 12526443
Grant Number 08288080
Status In Force
Filing Date 2008-02-08
First Publication Date 2010-11-25
Grant Date 2012-10-16
Owner Flint Group Germany GmbH (Germany)
Inventor
  • Becker, Armin
  • Stebani, Uwe
  • Geisen, Berthold
  • Krauss, Uwe
  • Telser, Thomas

Abstract

The invention relates to photopolymerizable flexographic printing elements which contain ethylenically unsaturated, alicyclic monomers and hard flexographic printing plates, in particular cylindrical continuous seamless flexographic printing plates, which can be produced therefrom.

IPC Classes  ?

  • G03F 7/24 - Curved surfaces
  • G03F 7/11 - Photosensitive materials - characterised by structural details, e.g. supports, auxiliary layers having cover layers or intermediate layers, e.g. subbing layers
  • B32B 37/00 - Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
  • B41C 1/05 - Heat-generating engraving heads, e.g. laser beam, electron beam

38.

Processes and apparatus for producing photopolymerizable, cylindrical, continuous, seamless flexographic printing elements

      
Application Number 11665482
Grant Number 08066837
Status In Force
Filing Date 2005-10-12
First Publication Date 2009-07-09
Grant Date 2011-11-29
Owner Flint Group Germany GmbH (Germany)
Inventor
  • Stebani, Uwe
  • Krauss, Uwe
  • Metzmann, Udo

Abstract

Processes comprising providing a layer composite comprising a layer of photopolymerizable material and a removable substrate film disposed on one side of the layer of photopolymerizable material, wherein the photopolymerizable material comprises an elastomeric binder, an ethylenically unsaturated monomer and a photoinitiator; and (a) miter-cutting two edges of the layer composite to be joined, to form two miter-cut ends; (b) providing a hollow cylinder on a rotatably mounted support cylinder, wherein the hollow cylinder has an outer surface and is in a temporarily locked position relative to the support cylinder; (c) applying an adhesion-promoting layer to the outer surface of the hollow cylinder; (d) applying the layer composite to the hollow cylinder bearing the adhesive-promoting layer, wherein the layer composite is disposed on the hollow cylinder such that the removable substrate film faces away from the hollow cylinder and the two miter-cut ends lie substantially one on top of the other, but not overlapping; (e) removing the substrate film from the layer of photopolymerizable material to provide an exposed surface of the layer of photopolymerizable material; (f) contacting the exposed surface of the layer of photopolymerizable material with a rotating calender roll with heating to join the two miter-cut edges and form a processed hollow cylinder, wherein heating comprises a locally-acting heat source moved in an axial direction relative to the hollow cylinder along the entire width of the layer of photopolymerizable material such that the exposed surface is heated; and (g) removing the processed hollow cylinder from the support cylinder.

IPC Classes  ?

  • B29C 63/10 - Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor using sheet or web-like material by folding, winding, bending or the like by winding helically around tubular articles
  • B29C 65/02 - Joining of preformed parts; Apparatus therefor by heating, with or without pressure
  • B29C 65/18 - Joining of preformed parts; Apparatus therefor by heating, with or without pressure using heated tool
  • B65H 81/00 - Methods, apparatus, or devices for covering or wrapping cores by winding webs, tapes, or filamentary material, not otherwise provided for
  • B32B 37/02 - Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by a sequence of laminating steps, e.g. by adding new layers at consecutive laminating stations
  • B32B 38/10 - Removing layers, or parts of layers, mechanically or chemically
  • B32B 43/00 - Operations specially adapted for layered products and not otherwise provided for, e.g. repairing; Apparatus therefor