The present disclosure provides a screen-printing mask for packaging organic light-emitting diode (OLED) products. The screen-printing mask includes a screen and a masking layer on the screen, the screen including a plurality of grids, and the masking layer including a plurality of blocking regions and a plurality of opening regions, the blocking regions being filled with a first blocking material, the opening regions corresponding to regions of an OLED substrate to be filled with a packaging material. In the opening regions, a first portion of the grids is exposed and a second portion of the grids is filled with a second blocking material, the first portion being a substantial portion of the grids.

There is described a combined printing press (10) for the production of security documents, in particular banknotes, comprising a screen printing group (3) and a numbering group (4) adapted to process printed substrates in the form of individual sheets or successive portions of a continuous web. The screen printing group (3) is located upstream of the numbering group (4) and comprises at least one screen printing unit (32-33) designed to print a pattern of optically-variable ink, which optically-variable ink contains flakes that can be oriented by means of a magnetic field. The screen printing group further comprises a magnetic unit (36) located downstream of the screen printing unit (32-33), which magnetic unit (36) is designed to magnetically induce an optically-variable effect in the pattern of optically-variable ink applied by the screen printing unit (32-33) prior to drying/curing of the optically-variable ink. The screen printing group (3) further comprises at least one drying/curing unit (37) designed to dry/cure the pattern of optically-variable ink in which the optically-variable effect has been induced by the magnetic unit (36), prior to transfer of the printed substrates to the numbering group (4).

A screen printing apparatus comprises print executing parts 20A, 20B, first and second substrate loading parts En1, En2 and a substrate unloading part Ex, and first and second substrate support tables 10A, 10B for supporting a substrate W to enable printing thereon by the print executing parts 20A, 20B. The first substrate support table 10A moves between a first receiving position where the substrate W loaded from the first substrate loading part En1 is received, and a sending position where the substrate W is unloaded from the substrate unloading part Ex. The second substrate support table 10B moves between a second receiving position where the substrate W loaded from the second substrate loading part En2 is received, and the sending position. The print executing parts 20A, 20B are respectively placed at positions on the substrate support tables 10A, 10B where printing on the substrate W is enabled.

A method of performing screen printing on a substrate used for the manufacture of a solar cell is provided. The method includes moving a print head over a screen by a first drive actuator to perform a printing stroke in a first direction. The method includes moving a material processing head in the first direction by a second drive actuator to perform a material processing stroke behind the print head. The print head is moved away from the material processing head by the first drive actuator during a distance increasing phase of the printing stroke to increase a separation distance between the print head and the material processing head.

The application relates to a doctoring unit for a printing apparatus for printing flat substrates, in particular circuit boards, wafers, or solar cells, comprising two doctor blades, which extend parallel to one another and are pivotably mounted. It is provided that the doctor blades are operatively connected to a gearing, which is formed in a self-locking manner and can be coupled or is coupled to a drive device.

An electrostatic screen printer includes: an electrically conductive screen arranged in non-contact with a printing medium; sponges for rubbing a powder into the screen; and a direct current power source for applying a voltage to the printing medium and the powder, wherein the powder rubbed into the screen is adhered to the printing medium by electrostatic induction. The electrostatic screen printer includes a rotation mechanism for rotating the sponges, a parent revolution mechanism for parent revolution of the sponges, and a child revolution mechanism for child revolution of the sponges. The revolution speed ratio of the child revolution to the parent revolution may preferably be 4.0 or greater, a scraper is provided on the parent revolution mechanism so as to be interlocked with the revolution of the sponges, and the scraper is arranged so as to scrape the powder on the screen toward an axis of the parent revolution

A method and an apparatus for selecting a paste stencil (10) for paste printing onto a substrate (20), the paste stencil (10) being selected on the basis of a stencil thickness (h), in the case of which an area ratio of a small through opening (11a, 11b) of the substrate is greater than or equal to a setpoint area ratio. Furthermore, the present disclosure relates to a method and an apparatus for applying paste material (30) onto a substrate (20) for at least one small component (21a, 21b) and at least one large component (22) which is larger than the at least one small component (21a, 21b), paste material (30) being applied for the at least one small component (21a, 21b) and the at least one large component (22) by means of a paste stencil (10) which is selected according to the invention, and additional paste material (30) being applied onto the paste material (30) for the at least one large component (22), after paste material (30) has been applied by means of the selected paste stencil (10) for the at least one small component (21a, 21b) and the at least one large component (22).

Provided is a solder supply method of supplying, onto a mask sheet, solder to be printed on a printed circuit board. The method includes calculating an amount of solder supplied for a plurality of points in an X direction that is a lengthwise direction of a squeegee, and changing the amount of solder supplied at each point in the X direction based on a result of the calculation.

A method of dispensing paste for a printer using a paste dispensing apparatus is provided. The paste dispensing apparatus includes a reservoir for storing a paste for a printer. The reservoir includes a stirrer for stirring the paste. The paste dispensing apparatus includes a receptacle for receiving paste from the reservoir. The paste dispensing apparatus includes a closable passage from the reservoir to the receptacle. The closable passage is changeable between an open state and a closed state. In the open state, the receptacle is fluidly coupled to the reservoir so that paste can pass from the reservoir to the receptacle. In the closed state, the receptacle is fluidly decoupled from the reservoir so that the paste is prevented from passing from the reservoir to the receptacle. The paste dispensing apparatus includes a pusher for pushing paste out of the receptacle. The method includes transferring a first volume of paste from the reservoir to the receptacle while the closable passage is in the open state. The method includes, after the transferring, changing the closable passage from the open state to the closed state. The method includes, after the changing, performing a first discharging operation by the pusher to discharge a first amount of paste from the receptacle while the closable passage is in the closed state.

A mounting system including a printing device that prints a viscous fluid on a processing target object using a screen mask, an exchange unit disposed in the printing device and configured to automatically exchange a printing related member for use in the printing device between the printing device and the exchange unit, one or more mounting devices including a mounting section configured to mount a component on the processing target object, and a moving work device configured to move around a circumference of the mounting device to automatically attach and detach a mounting related member for use in the mounting device between the mounting device and the moving work device. The printing device and the mounting device are disposed in such a manner that front surfaces thereof lie on the same side, and the exchange unit and the moving work device are disposed on the same side.