摘要:
Printing methods and apparatus for thermal transferring dye from a dye donor to a dye receiver wherein electromagnetic radiation such as a laser beam is applied through the dye receiver to effect dye transfer. Either or both of the dye donor and the dye receiver used with such printing methods and apparatus can be in the form of individual sheets or continuous ribbons and may be either stationary or moving. In various embodiments, the dye receiver is held between a convex surface of a rigid support plate and the dye donor during thermal transfer of dye. A variety of methods and devices for providing electromagnetic radiation and for transporting dye donors and dye receivers during printing are also disclosed.
摘要:
A printing mechanism for waterless offset printing including a form cylinder that carries a sleeve-shaped printing form and/or a transfer cylinder that carries a sleeve-shaped transfer form such that the forms can be slipped onto or removed from their respective cylinder. Both the transfer cylinder and the form cylinder having internal and external cooling arrangements.
摘要:
Method of controlling a start-up of paper travel and printing, respectively, in a printing press having an electrically operated dryer for printing products printed with ink curable by drying, the dryer being preheatable over a limited time period, includes switching-on a drive for effecting paper travel and printing, respectively, after the dryer, which has been switched on beforehand, has reached a limit value representing optimum operating conditions.
摘要:
A thermal ink jet printer incorporates a copy speed feed control for reducing peak power requirements. Printing data supplied to the printer is scanned to determine image density or power consumption to dry ink in a dryer is determined. The speed of the sheet transport system is controlled in accordance with the image density so that, at high image densities, the speed of the sheet at the printer and/or at the dryer is reduced. A controller controls the speed of a drive motor driving the transport system in accordance with a determination of the density of the printed image from image print data or energy required for ink drying. A printer employing on-demand workstations having potentially high peak power usages can be made compatible with conventionally provided power supply systems.
摘要:
A method for operating a web printing press is provided. The method includes unwinding a substrate from a roll to define a web; during makeready, printing the web using at least one print unit, the makeready ending when the web is being printed to a desired standard; stopping the web after the makeready; rewinding the web so that the substrate printed during the make ready pass back through the print unit; and unwinding again the rewound substrate to pass through the print unit. A press and printed product are also provided.
摘要:
A press includes a blanket cylinder, an impression cylinder, and a roller. The impression cylinder rollingly engages the blanket cylinder to form a nip and includes at least one gripper configured to selectively secure an end of a media sheet relative to the impression cylinder. The roller is selectively engageable against the impression cylinder to apply to pressure to the secured media sheet prior to its passage through the nip.
摘要:
There are provided a printing method for a printing press that includes: printing an image on a sheet of paper fed using an ultraviolet curable paint; and irradiating the ultraviolet curable paint on the printed sheet fed by selectively causing a plurality of light emitting diodes disposed at predetermined intervals across a lateral direction of the sheet to turn on in accordance with the location and size of a predetermined area of the sheet, thereby irradiating the predetermined area with ultraviolet light therefrom and curing the predetermined area.
摘要:
A printing/coating method includes the steps of transferring highly reactive ink/varnish which cures with a low light energy onto a transfer object, and irradiating the transfer object, onto which the highly reactive ink/varnish is transferred, with light in the wavelength range, in which no ozone is generated, to cure the highly reactive ink/varnish on the transfer object. A printing/coating apparatus is also disclosed.
摘要:
In a line art transfer free hand colouring printing technique, a design outline is first generated on a transfer substrate using a glutinous ink and is then applied to a surface, for example the front of a T-shirt. A user then applies colouring and/or texturing in and/or around the design in accordance with personal choice to create an image and thereafter a finishing is applied. The finishing comprises a sheet releasably carrying decorative transfer elements which upon application to the image highlights the outline only, the remainder of the image remaining unaffected by the finishing.
摘要:
According to an aspect of the present disclosure; a method of processing a substrate media having an image injected thereon is provided and includes the step of passing the substrate media through a nip defined between a heated fuser drum and a pressure roll. A fixer subsystem, for use in a system for printing on a substrate media, where the subsystem includes a rotatable, heatable fuser drum defining an axis of rotation; and a rotatable pressure roll operatively associated with the fuser drum and defining an axis of rotation substantially parallel to the axis of rotation of the fuser drum. The pressure roll is rotatable about the axis of rotation of the fuser drum to vary a length of contact of substrate media and image with fuser drum.