摘要:
A method for drying a printing ink (114) on a printing substrate (14) in a printing press (30), and a printing press (30). The printing substrate (14) is moved along a path (16) through the printing press (30) and printed on by at least one printing ink (114) at a first position (18) of the path (16). At a second position (124) of the path (16), in a conditioning apparatus, a treatment agent (118) is applied to the printing substrate (14) to accelerate the drying of the printing ink (114) on the printing substrate (14) and includes, in particular, an infrared absorber which has an absorption wavelength that is essentially resonant to the wavelength of the light (12) of the radiant energy source (10). The printing substrate (14) may be dried by the action of radiant energy at a chronologically later point in time, at at least one third position (116) of the path (16), by a drying device, in particular by a narrow-band radiant energy source (10).
摘要:
A method for drying a printing ink (114) on a printing substrate (14) in a printing press (30), and a printing press (30). The printing substrate (14) is moved along a path (16) through the printing press (30) and printed on by at least one printing ink (114) at a first position (18) of the path (16). At a second position (124) of the path (16), in a conditioning apparatus, a treatment agent (118) is applied to the printing substrate (14) to accelerate the drying of the printing ink (114) on the printing substrate (14) and includes, in particular, an infrared absorber which has an absorption wavelength that is essentially resonant to the wavelength of the light (12) of the radiant energy source (10). The printing substrate (14) may be dried by the action of radiant energy at a chronologically later point in time, at at least one third position (116) of the path (16), by a drying device, in particular by a narrow-band radiant energy source (10).
摘要:
The present invention relates to a method for controlling the ink feed in a printing press which processes printing substrates (12) and features at least one inking unit and one computer and to a device for carrying out the method. The present invention is characterized in that the computer knows at least the physical properties of printing ink and/or printing substrates (12) as data, that the stored data is read into an ink control model which is stored in the computer, and that the optimum settings with regard to the ink feed are made on the basis of this ink control model before the start of printing or during the printing process.
摘要:
A method for developing printing plates in a printing press having at least one printing unit includes loading an imaged, undeveloped printing plate with dampening solution before a start of printing for dampening in at least one printing unit of the printing press for an active duration corresponding at least to one and one half times a time duration or number of machine revolutions provided before a start of printing when an already developed printing plate is used in the same printing press. A printing press for carrying out the method is also provided.
摘要:
A method of determining trapping, i.e., spreading or choking, in color boundary areas in a printed image, includes characterizing with respect to register behavior one of a printing machine and a printing machine type, respectively, performing a printing; determining the printing-machine specific register behavior with knowledge of influencing factors relating to the color to be printed and the printing material to be printed on for the job being printed; calculating minimum required spreadings and chokings, respectively, while taking a safety margin into account; and taking into account minimum geometric overlaps in producing an original.
摘要:
A method of setting guide elements for a flat material along a printing-material conveying path in a rotary printing machine includes determining a job-specifically optimized actuating position for a positioning of sheet-guiding elements and of sheet-conveying elements by using job-specific printed-image information known from a prepress stage. The sheet-guiding elements and/or the sheet-conveying elements are positioned in relation to a printed image by using the determined job-specifically optimized actuating position.
摘要:
The invention relates to a method for producing interior lining parts in a foaming tool, to an interior lining part produced accordingly, and to a foaming tool which can be used for production. The interior lining part has at least one molded skin, at least one foam layer and at least one carrier, the foam layer being located between the molded skin and the carrier. In order to produce an interior lining part according to the invention, the molded skin is introduced into a mold of a foaming tool. The foaming tool contains at least one separating edge. During back-foaming, the carrier is pressed against the molded skin at the position of the separating edge and connected to said molded skin such that a molded skin end can be severed manually, that is without the aid of tools, from the molded skin or is severed by the pressing step.
摘要:
Printing material is transported through the multicolor printing machine with a cyclically operating feeding arrangement. At least one surface of the printing material is successively imprinted with a printed image. The printed image is recorded in a image pickup and an image signal of each printed image is generated. The image signal generated from a plurality of printed images is transmitted to a control device. The control device processes the electric image signals to obtain information relating to rhythmic vibrations in the machine causing register deviations. The cause of the vibrations is determined and counter-measures are initiated for minimizing or eliminating the rhythmic vibrations.
摘要:
Sheet delivery in a printing press, wherein, at acceptance of a sheet, a gripper bar of the delivery has a speed which is increased in comparison with a sheet-surrendering or transferring gripper bar includes delivery chains, and a drive for driving the chains so as to increase the speed of the gripper bar of the delivery at an instant at which a sheet is transferred to the gripper bar of the delivery by the sheet-surrendering gripper bar.
摘要:
The invention relates to a method for producing interior lining parts in a foaming tool, to an interior lining part produced accordingly, and to a foaming tool which can be used for production. The interior lining part has at least one molded skin, at least one foam layer and at least one carrier, the foam layer being located between the molded skin and the carrier. In order to produce an interior lining part according to the invention, the molded skin is introduced into a mold of a foaming tool. The foaming tool contains at least one separating edge. During back-foaming, the carrier is pressed against the molded skin at the position of the separating edge and connected to said molded skin such that a molded skin end can be severed manually, that is without the aid of tools, from the molded skin or is severed by the pressing step.