Patent classifications
G03G15/1625
Textile printing
Herein is described a method of printing an image on a textile. The method comprises electrophotographically printing an image onto a textile substrate using an electrophotographic ink composition, applying a coating composition comprising a polymer and a crosslinking agent to the printed electrophotographic ink, and crosslinking the applied coating composition.
Fabrication of 3D objects via multiple build platforms
A method is disclosed for improving the productivity of digitally fabricated 3D objects with the same or different shape and material composition. The improved productivity is enabled by the incorporation of multiple build platforms and multiple objects per build platform within a 3D object fabrication apparatus. Some 3D manufacturing processes such as those based on electrophotography require a wait time to condition the build object before the next layer of build and support material can be applied. Under these fabrication conditions, the utilization of multiple build platforms in the 3D object manufacturing process effectively minimizes the wait time between layer deposition so that the productivity for fabricating 3D objects is improved. Furthermore, the incorporation of an additional adjacent set of multiple platforms enables rapid changeover when the fabrication of one set of 3D objects is completed on an adjacent set of build platforms.
IMAGE FORMING APPARATUS
An image forming apparatus includes an image processing section and an image forming section. The image processing section corrects, on the basis of pieces of image data, a pixel value corresponding to an auxiliary color developer in a first pixel and thereby causes a developer amount in the first pixel to fall within a predetermined range. The pieces of image data correspond to respective developers including one or more basic color developers that configure an image and the auxiliary color developer. The developer amount in the first pixel is a total amount of the one or more basic color developers and the auxiliary color developer in the first pixel when the one or more basic color developers and the auxiliary color developer are disposed on each other. The image forming section forms an image on a transfer print medium on the basis of the pieces of processed image data processed.
FABRICATION OF 3D OBJECTS VIA MULTIPLE BUILD PLATFORMS
A method is disclosed for improving the productivity of digitally fabricated 3D objects with the same or different shape and material composition. The improved productivity is enabled by the incorporation of multiple build platforms and multiple objects per build platform within a 3D object fabrication apparatus. Some 3D manufacturing processes such as those based on electrophotography require a wait time to condition the build object before the next layer of build and support material can be applied. Under these fabrication conditions, the utilization of multiple build platforms in the 3D object manufacturing process effectively minimizes the wait time between layer deposition so that the productivity for fabricating 3D objects is improved. Furthermore, the incorporation of an additional adjacent set of multiple platforms enables rapid changeover when the fabrication of one set of 3D objects is completed on an adjacent set of build platforms.
Electrostatic 3-D printing system having acoustic transfer and corotron
3-D printers include a transfuse station having at least one roller on one side of the ITB supporting the ITB, and a transmission device on the same side of the ITB. A platen is included that moves relative to the ITB. The ITB electrostatically transfers a layer made up of the different color build materials and the support material to the platen each time the platen contacts the other side of the ITB at the transfuse station (the side of the ITB opposite the transfuse station roller and transmission device) using vibration and charge devices; and this successively forms multiple layers of the build materials and the support material on the platen.
FORMING APPARATUS, AND MANUFACTURING METHOD OF THREE-DIMENSIONAL OBJECT
Occurrence of layering defects is suppressed in a layering forming method where material layers on a conveyance member are heated and layered. A forming apparatus 1 configured to sequentially layer a plurality of material layers and form a three-dimensional object includes a stage having a forming face on which the material layers are layered, a conveyance member configured to support and convey the material layers to a layering position facing the forming face, and a heating member configured to nip the material layers between itself and the forming face of the stage at the layering position, and pressurize and heat the material layer. When a heating region of the heating member is perpendicularly projected onto a plane where a supporting face at which the conveyance member supports the material layer exists, a projection plane of the heating region has extending regions that extend further to the outer side from both edges of the supporting face, on both edges of the projection plane of the heating region.
Acoustic transfude 3-D printing
3-D printers include a transfuse station having at least one roller on one side of an ITB supporting the ITB, and a transmission device on the same side of the ITB. A charge neutralizer is included on a second side of the intermediate transfer surface. The charge neutralizer outputs an opposite charge to neutralize existing static charge on a layer of the build material and the support material on the ITB, before the layer reaches the transfer station. Additionally, the intermediate transfer surface transfers the layer to a platen each time the platen contacts the second side of the intermediate transfer surface, at the transfer station, to successively form layers of the build material and the support material on the platen. Also, the transmission device outputs acoustic waves to cause the layer to move from the intermediate transfer surface to the platen, or to the layers on the platen.
IMAGE FORMING APPARATUS
An image forming apparatus includes an image forming section. The image forming section includes: a first toner image forming unit that forms a textile printing toner image with a textile printing toner; and a second toner image forming unit that forms a first dyeing-target toner image with a dyeing-target toner. The image forming section disposes the textile printing toner image and the first dyeing-target toner image in this order on a print medium. The textile printing toner includes a textile printing dye. The dyeing-target toner includes a polymer compound that is to be dyed with the textile printing dye.
BUILDING WITH CYLINDRICAL LAYERS IN ADDITIVE MANUFACTURING
An additive manufacturing system for printing a three-dimensional part includes a build roller that rotates while receiving part material such that layers of part material are formed on a cylindrical base of the build roller in a cylindrical scroll to form the three-dimensional part, wherein the part material of adjacent layers of part material are bonded together on the build roller, and wherein the three-dimensional part can be non-cylindrical.
ELECTROPHOTOGRAPHY-BASED ADDITIVE MANUFACTURING WITH PART MOLDING
An additive manufacturing method produces a 3D part utilizes electrophotography-based additive manufacturing and molding processes. A layered structure having a cavity is printed on a build platform using at least one electrophotographic (EP) engine to develop imaged layers of powder material, and a transfusion assembly to stack and fuse the imaged layers on the build platform. Molding material is deposited into the cavity as the layered structure is printed, using a deposition unit. The molding material solidifies to form at least a portion of the 3D part, which may also include portions formed from imaged powder material.