JP2007176173A5 - - Google Patents

Claims (10)

In a sheet processing machine, particularly a sheet rotary printing machine, a method for transferring an image line providing layer or a coating or surface coating layer from a carrier film to a printing sheet,
The sheet-fed rotary printing machine includes at least one coating device (1) for providing a flat coating on a printed sheet according to an image area with an adhesive,
And at least one coating device (2) for transferring the image area providing layer or coating layer from the carrier film to the printed sheet,
A transfer gap (6) is formed in the coating apparatus (2), and the carrier film is in contact with the printing sheet while the coated side is in contact with the printing sheet, while the transfer gap is applied. (6) In this method, the image portion providing layer or the covering layer is transferred so as to adhere to the printed sheet from the carrier film in the region where the adhesive is provided.
When the transfer film (5) is supplied to the transfer gap (6) and / or when the transfer film (5) is unloaded from the transfer gap (6), the tension of the web is changed to a sheet coating cycle. A method characterized by changing.   The web of the transfer film (5) has a winding angle (Z) of the transfer film around the press roller (3) in the discharge section of the transfer gap (6) in the operation cycle of the coating device (2). The method of claim 1, wherein the method is guided to change.   In a cycle in which the web tension of the transfer film (5) passes through the groove of the cylinder groove (3.1, 4.1) between the impression cylinder (4) and the press roller (3), the loop is controlled, 3. Method according to claim 1 or 2, characterized in that the tension of the web as it passes through the groove increases for a short time. An apparatus for transferring an image area providing layer and / or a coating or surface coating layer from a transfer film (5) to a printed sheet,
At least one coating device (1) for applying a flat coating to the printed sheet according to the image area with an adhesive;
And at least one coating device (2) for transferring the image area providing layer and / or the coating layer of the transfer film (5) to a printed sheet,
Each coating device (2) has a transfer gap (6) in which the transfer film (5) contacts at least the press roller (3) while the coated side is on the printed sheet. In the abutted state, it is conveyed while pressure is applied. At this time, the image area providing layer or the covering layer or the surface covering layer is adhered to the printed sheet in the region where the adhesive is provided. In the apparatus for transferring from the transfer film (5) to the printed sheet,
A device characterized in that a film guide device which can be controlled in a sheet coating cycle is provided for the transfer film (5) in a module type film sticking device. The film guide device for controlling the tension of the web of the transfer film (5) is provided with a device for measuring the tensile force of the web-like film of the transfer film (5), and the transfer film (5 1) for changing the web tension of the web-like film by using the measured value of the device for measuring the tensile force of the web-like film in the film guide device for controlling the tension of the web) The apparatus according to claim 4 , wherein a plurality of apparatuses are provided . In the film guide device for controlling the tension of the web of the transfer film (5), the measured value of the device for measuring the pulling force of the web-like film is used, and the web-like film is conveyed in the transport direction. One or a plurality of dancer rollers (18) for changing the transport path of the web-like film by moving in a direction transverse to the web , or the web of the transfer film (5) Using the measured value of the device for measuring the tensile force of the web-like film in the film guide device for controlling the tension of the web, from the winding roller or the feeding roller (8, 9), the web in the transport direction One or more drive units (7) or brakes are provided for changing the tensile force exerted on the film. Apparatus according to claim 5, characterized in that is.   The film guide device for controlling the tension of the web of the transfer film (5) has a device for changing the winding angle (Z) of the web-like film around the press roller (3) by timing control. Device according to claim 4, characterized in that it is provided. In order to change the winding angle (Z) of the web-like film around the press roller (3) on the carry-in side of the transfer gap (6) by timing control, the web running direction of the transfer film (5) Is provided with a guide roller (24) that can be moved by a cycle operation , and / or on the carry-out side of the transfer gap (6), the press roller (3 In order to change the wrapping angle (Z) around the transfer film (5) by timing control, a guide roller (34) is provided which can be moved by a cycle operation across the web running direction of the transfer film (5). The device according to claim 7, characterized in that:   The member which covers the trunk | drum (3.1) which accommodates the member for tensioning | pressing the press tension | tensile_strength material (10) is provided in the said press roller (3), The said roller is provided. Equipment.   The impression cylinder (4) has a holding member (G) for flatly forming a holding (G) for fixing the sheet (B) to the impression cylinder (4). 10. A device according to any one of claims 4 to 9, characterized in that the upward protrusion of the peripheral surface is minimized or zero.