摘要:
The present invention provides a control method used in a roller coating production line, wherein by calculating and controlling the theoretical roll surface linear velocity and actual roll surface linear velocity of each roller in a roller coating unit, the rotational speed of each roller is kept consistent with the process speed, increasing production efficiency. At the same time, calculating a pattern misplacement distance in repeat printing by means of code recognition technology, thereby adjusting the rotational speed of each roller, achieves lifelike and holonomic patterning in multicolored printing and extends the printed length of the pattern.
摘要:
A method of achieving precision registration in a roll to roll process by simultaneously depositing multiple inks onto a printing roll. One of these inks prints a pattern of fiducial marks onto a substrate while another ink prints a predetermined pattern on the same substrate such that the predetermined pattern bears a predictable spatial relationship to the pattern of fiducial marks. Consequently, even if the ink forming the predetermined pattern is invisible, or has such low contrast with the substrate that it is effectively invisible, or even has been dissolved away in a subsequent processing step, it is still possible to know where the predetermined pattern is by referring to the pattern of fiducial marks.
摘要:
The present application relates to a roll printing apparatus and a roll printing method using the same, and the roll printing apparatus according to the present application comprises a printing roll support, a printing roll, a blanket which is provided on an outer surface of the printing roll, a coater which coats a surface of the blanket with ink, a cliche, and a printing object, in which the printing roll is provided to be fixed to the printing roll support so as to perform rotational motion, and the cliche is conveyed by the rotational motion of the printing roll.
摘要:
An ink-storage unit for a hand stamp includes a retainer in which a storage body is arranged, and a frame in which a printing plate is arranged. The frame sits in a provisional mounting position on the retainer, in which position the storage body and the printing plate are held at a distance from each other, and the frame can be moved into a final mounting position on the retainer, in which position the storage body and the printing plate lie against each other, wherein the storage body is fixed in the retainer by at least one engaging part.
摘要:
A structure and method of using a reusable master printing plate is described. In one embodiment, the viscosity of an electrorheological fluid is adjusted using an electric field to control its flow and create the desired relief pattern in a flexible printed surface. After creating the relief pattern, the pattern is fixed and used for printing. After completion of printing, the relief pattern is removed from the master printing plate and the printing plate may be reused by applying a new pattern.
摘要:
Spectral, densitometric, or color measured values are detected on sheet printing materials during the printing process in a sheet-fed printing press. The measured values are determined on sheets as they are moving through the printing press and the measured values are used in real-time by a computer to control parameters for controlling the printing process in the sheet-fed printing press.
摘要:
A roller parallelism adjustment structure is provided for, a roller feeder having, a transfer roller and an impression roller. The transfer and impression rollers are located between the first end and the second end of the roller feed for transferring a material from the first end to the second end. A roller parallelism adjustment mechanism is installed in one side of the roller feeder to support one end of the impression roller and is adjustable relative to the roller feeder to keep the impression roller in parallel to the transfer roller for accurate transfer of the fed material from the first end to the second end.
摘要:
An object is to provide a single color press which shortens takt time by eliminating wastefulness from the printing process. There is provided: a first transfer cylinder which transfers an image to a first printing substrate; a first moving carriage which holds the first transfer cylinder in a rotatable manner and travels along a frame; a second transfer cylinder which transfers an image of the same color and shape to a second printing substrate; a second moving carriage which holds the second transfer cylinder in a rotatable manner and travels along the frame 3; and a single relief plate which removes a reverse image from ink applied to the first transfer cylinder and the second transfer cylinder.
摘要:
A printing press ink transfer mechanism includes a primary flow metering device to monitor the flow ink supply and a secondary flow metering device to monitor the return flow of the ink to the supply. The difference in ink flow between the supply and return is delivered to the application rollers of a printing press.