Abstract:
A printing machine, comprising an intermediate medium; an ink jet printhead, for dispensing phase-change ink droplets at selected locations of a surface of the intermediate medium, the selected locations corresponding to an image to be printed; a receiver source, for providing a receiver; and a transfer station, for electrostatically transferring the dispensed phase-change ink droplets to the receiver.
Abstract:
A system that prints three dimensional products, the system including at least one printhead that prints electrical connections to at least one object incorporated in the products.
Abstract:
A direct printing image forming apparatus arranged to provide at least a first printed image of intercepted toner particles within a printable area on a first information carrier in accordance with an image configuration. The first printed image has a print quality being a function of print settings of the image forming apparatus which include at least printing zone geometry, toner delivery system, and electric field characteristics. Thereby, the print settings have been set in such a way that, when the image information descrives a matrix of 8 x 6 pixels each 100 % of a single color selected from yellow (Y), magenta (M), cyan (C) and black (K) and in which pixels of the same color are present in at least 6 rows and in at least 5 columns of the matrix giving the first printed image (IM1) 8 x 6 print blocks (Y, M, C, K) having an area close to 25.4 x 25.4 mm, the difference in optical density between any two measurement positions (MP641, MP822) within the print blocks becomes smaller than 0.7 units when measured by means of Macbeth3 RD914.
Abstract:
A method of printing uses a liquid applicator to apply a coating solution containing polyvinyl pyrrolidone or a polyvinyl pyrrolidone copolymer to an intermediate transfer medium. An image is printed onto the intermediate transfer medium using an ink jet printing device. The coating solution contains an organic solvent, which is preferably a glycol solvent or a diol solvent. Suitable solvents include trimethylene glycol, diethylene glycol, propylene glycol, di propylene glycol, tri propylene glycol, 11,2 butane diol, 2 pyrrolidone, gamma butyrolactone and glycerol. The coating solution is applied in an amount of 0.01 to 10 mg/cm . The coating solution may contain 0.01 to 20 wt. % of polyvinyl pyrrolidone or a polyvinyl pyrrolidone copolymer, 5-95 wt. % water. More preferably, the coating solution contains 0.01 to 15 wt. % of polyvinyl pyrrolidone or a polyvinyl pyrrolidone copolymer, 5,95 wt. % of an organic solvent and 5-95 wt. % water. Most preferably, the coating solution contains 2 to 8 wt. % of an organic solvent and 5-95 wt. % water. The PVP should have a molecular weight greater than 400,000, more preferably greater than 750,000 and most preferably within the range of from 850,000 to 1,500,000.
Abstract:
A method of printing uses an inkjet print head to print an ink containing about 0.01 to about 15 wt.% of a wetting agent onto an intermediate transfer surface to form an image on the intermediate transfer surface. The method transfers the image from the intermediate transfer surface to a final medium while the ink is partially wet. The wetting agent may be a 1, 2 alkyldiol having 4-10 carbon atoms or a diether alcohol having 6-14 carbon atoms. 1, 2hexanediol and hexylcarbitol, respectively, are particularly suitable wetting agents. If 1, 2 hexanedio is used as the wetting agent, the ink may contain about 1.0 to about 5.0 wt.% hexanediol. If hexylcarbitol is used as the wetting agent, the ink may contain about 0.1 to about 2.5 wt.% of hexylcarbitol. The intermediate transfer surface may be coated with a coating solution. In this case, the ink should have a surface energy different from that of the coating solution by no more than about about 10 dynes/cm. The coating solution may contain polyvinyl pyrrolidone, and if so, about 0.01 to about 20 wt.% PVP is suitable. The PVP should have a molecular weight greater than about 400,000.
Abstract:
Image processing is effected by processing an input data file having data representative of a scanned image which is required for colour printing, the method including producing an output electronic data file with amendments to apply rules affecting colour dot disposition to correct for what would otherwise be loss of detail and colour distortion in printing a colour image from the original file with transfer ink which is adapted to be printed onto a substrate for subsequent transfer under heat and pressure to the product such as a fabric.
Abstract:
A print array (240) that incorporates reservoir(s) (412), microchannels (422) and micropumps (434) such as electrohydrodynamic (EHD) pumps for selectively dispensing fluid from the reservoir(s) onto the surface of a receptor (250) is disclosed. The control signals for the pumps are implemented using electronic fluid modulation (EFM) to selectively dispense fluid from the reservoir(s) of the print array onto a receptor.
Abstract:
An improved print head construction for maintaining wafer strength along the line of nozzles at approximately 50 % of the normal wafer strength. This is achieved by dividing each row of nozzles into segments, and by displacing some of those segments (preferably every alternate segment) in the print direction. Displacement of the segment of nozzles is in the print direction so that the nozzles can still print the same pixels to the recording medium, simply by altering the time that the nozzles are provided with the particular information to be printed. The distance that the displaced segments are displaced is preferably slightly more than the width of the slot (or ink channel) in which the nozzles in the appropriate segment are formed.
Abstract:
An article having a patterned metallic film on a surface thereof, and methods of producing such an article, the article including: (a) a porous substrate having a first porous surface; (b) a patterned metallic film attached to the first porous surface, including (i) a first patterned polymeric layer attached to the first porous surface; and (ii) a patterned metallic layer attached to the first patterned polymeric layer, on a distal side with respect to the first porous surface; wherein a thickness of the metal layer is at most 3 µm.
Abstract:
A system and method for performing is laser induced forward transfer (LIFT) of 2D materials is disclosed. The method includes generating a receiver substrate, generating a donor substrate, wherein the donor substrate comprises a back surface and a front surface, applying a coating to the front surface, wherein the coating includes donor material, aligning the front surface of the donor substrate to be parallel to and facing the receiver substrate, wherein the donor material is disposed adjacent to the target layer, and irradiating the coating through the back surface of the donor substrate with one or more laser pulses produced by a laser to transfer a portion of the donor material to the target layer. The donor material may include Bi2S3-xSx, MoS2, hexagonal boron nitride (h-BN) or graphene. The method may be used to create touch sensors and other electronic components.