| Patent application number | Description | Published |
|---|
| 20080241718 | Method and Device for Receiving a Used Web of Transfer Foil - A method and device for receiving a used web of transfer foil on a wind-up reel overcome the disadvantage of telescoping of the wound-up web of transfer foil on the wind-up reel, which tends to increase as a used web of transfer foil continues to be fed to the wind-up reel. Telescoping is at least reduced by providing a device for receiving a used web of transfer foil with at least one dielectric layer, causing web regions adjacent each other in the radial direction on the wind-up reel to adhere to each other due to electrostatic forces. At least one charging device for charging the dielectric layer of the web of transfer foil is provided in a transfer foil web region upstream of the wind-up reel, to charge the used web of transfer foil. The charging device substantially extends over the entire width of the web of transfer foil. | 10-02-2008 |
| 20080251190 | Film transfer unit having an integrated further processing device and method for transferring a transfer layer from a carrier film onto a print carrier - A printing machine contains a transfer unit for transferring a transfer layer onto a print carrier in a transfer nip. The printing machine further has at least one applicator unit for applying an adhesive to the print carrier. The applicator unit precedes the transfer unit, and the transfer layer is detached from the carrier film in the transfer unit in the regions in which adhesive is applied. By printing units being converted into transfer units or applicator units, the functionality of the printing unit for a printing operation is lost. If the applicator device and the transfer device are located in this order on an impression cylinder of a printing unit, the applied adhesive is not predried sufficiently. To overcome these disadvantages, the transfer unit is a further processing unit and has at least one further processing device which follows the transfer nip and which acts on the print carrier. | 10-16-2008 |
| 20080277067 | Blanket for Use in a Cold-foil Stamping Process and Cold-foil Stamping Device Having a Blanket - A blanket for use in a cold-foil stamping process includes hard elements at least partially embedded in a cover layer. As a result, a line pressure in a transfer nip of a transfer unit of a cold-foil stamping device can be adjusted and increased to such an extent that a transfer layer is transferred with sharper edges from a transfer foil to a printing substrate. Structuring of the transfer layer due to the hard elements can be successfully avoided at the same time, if desired, by completely embedding the hard elements into the cover layer. A cold-foil stamping device including a transfer cylinder and a corresponding blanket, is also provided. | 11-13-2008 |
| 20090205772 | Method for Transferring a Transfer Layer from a Carrier Film, Film Transfer Apparatus and Covering Surface for a Film Transfer Apparatus - A film transfer apparatus includes an application unit, a transfer unit downstream of the application unit, and at least one third unit for further processing a printing material with a transfer layer applied. In the prior art, if contact pressure is exerted on coated printing material again in a following nip, the adhesive layer under the transfer layer can be pressed out. A blanket can then be contaminated with adhesive, ink itself can be contaminated and parts of the transfer layer can be detached from the coated sheet. In order to avoid pressing out the adhesive, measured values in the transfer unit are compared with corresponding values in the third unit. At least one controlled variable in the units can then be readjusted on the basis of a difference, to at least reduce the quantity of adhesive squeezed out. A transfer method and a covering surface are also provided. | 08-20-2009 |
| 20090294038 | Intermittent Film Drive and Method - A method and an apparatus for reducing web tension change during intermittent driving of a transfer film in a film transfer unit, include severely impairing the web tension by contact sections before and after a transfer nip of the film transfer unit as the transfer film runs through a channel at the transfer nip. In order to reduce the web tension changes, front and/or rear guide elements before and after the transfer nip are moved time-asynchronously in relation to one other in order to at least reduce web tension fluctuations of the transfer film as it passes through the transfer nip. | 12-03-2009 |
| 20090294039 | Film Transfer Apparatus, Cassette for a Film Transfer Apparatus and Method for Operating a Film Transfer Apparatus - A film transfer unit is provided on an inking unit of a printing unit. If such a film transfer unit includes an intermittent drive device having dancers then, as a result, access to an ink fountain or an inking unit is generally rather restricted. Adjustable guide elements of the intermittent drive device are provided in a frame of an intermittent drive module which can be pushed, in the form of a cassette, out of an opening of the film transfer unit when the film transfer unit is not to be used to transfer a transfer layer from a transfer film to a printing material, so that an installation space which has thus become free can be used to operate an ink fountain of the inking unit. A cassette for a film transfer apparatus and a method for operating a film transfer apparatus, are also provided. | 12-03-2009 |
| 20100200171 | FILM TRANSFER APPARATUS WITH VARIABLE FILM WEB GUIDANCE - An apparatus for film transfer includes at least one printing press and at least one transfer film supply roller, a transfer film guiding device for guiding the transfer film web from the transfer film supply roller to a transfer nip. In order to ensure a variable film transfer in different printing units of the printing press, up to now the transfer film supply roller is moved with a film module into the region of the desired printing unit. In order to make a variable film transfer possible without complicated moving, the guiding device has web guiding elements at least in the region of the at least one printing press and the web guiding elements are enabled to selectively guide the transfer film web to different positions on the at least one printing press, such as to possible potential transfer nips. | 08-12-2010 |
| 20110277650 | FILM TRANSFER DEVICE - A film transfer device guides a transfer film at least partly around a transfer cylinder having a channel. As a result of entrainment of the transfer film by an edge region of the channel during indexing, considerable impairment to web tension occurs, requiring an indexing speed to be reduced so as not to cause damage to the film. In order to increase an indexing frequency, in one region, i.e. more precisely in an edge region of the channel of the transfer cylinder, a coating is provided having such a nature that it at least reduces an adhesion of a rear side of the transfer film to the edge region of the channel, i.e. to the transfer cylinder in this case. In this way, the film slides better off the edge region of the channel and a higher indexing speed can be achieved. | 11-17-2011 |
