Abstract:
The present invention relates to an ink-jet printing apparatus that is capable of obtaining printed materials having good appearance while maintaining high quality of printed characters or images even when printed on a resin printing medium using a water-based ink, and an ink-jet printing method. The present invention provides an ink-jet printing apparatus in which when setting a plurality of measuring positions of a printing medium including a position of the printing medium at which the printing medium is wound into a web roll in a web roll heating/supporting mechanism and positions of the printing medium which are respectively located just below a plurality of ink-jet printing heads, a plurality of temperature measuring devices measure temperatures of a surface of the printing medium at the plurality of measuring positions, respectively, and a heating amount control device controls a heating amount of the web roll heating/supporting mechanism and heating amounts of under heaters on the basis of the plural measured temperatures such that a difference between the temperatures measured in a portion of the printing medium to which a tension force is applied falls within the range of 10° C., and an ink-jet printing method using the ink-jet printing apparatus.
Abstract:
Provided are a functional cylinder body, including a plurality of layers having magnetic patterns and non-magnetic patterns formed adjacently, and a manufacturing method therefor. The functional cylinder body comprises at least: a cylinder main body; a first functional pattern part, which includes first patterns and first functional patterns, the first patterns having first recess patterns and first non-recess patterns formed by forming recesses on a first material layer made of any one of a magnetic material and a non-magnetic material, the first functional patterns being made of any one of the magnetic material and the non-magnetic material embedded in the first recess patterns; and a second functional pattern part, which is formed in a position of the cylinder main body shallower than a position of the first recess patterns and has magnetic patterns of the magnetic material and non-magnetic patterns of the non-magnetic material formed adjacently.
Abstract:
Provided is a single-motor-driven gravure cylinder chuck mechanism that is enhanced in contact tightness of chuck cones with respect to an unprocessed plate-making roll in each processing unit of a fully automatic plate-making system. The gravure cylinder chuck mechanism is to be used for a processing unit of the fully automatic gravure plate-making processing system for manufacturing a plate-making roll by performing a series of processes on an unprocessed plate-making roll. The gravure cylinder chuck mechanism includes: a pair of chuck cones provided to be opposed to each other, for chucking both end surfaces of the unprocessed plate-making roll; chuck cone moving means for allowing the pair of chuck cones to be freely brought into contact with and separated away from both the end surfaces of the unprocessed plate-making roll; and a single motor for driving the chuck cone moving means. The single motor allows the pair of chuck cones to be freely brought into contact with and separated away from both the end surfaces of the unprocessed plate-making roll so that the pair of chuck cones chuck the unprocessed plate-making roll.
Abstract:
Provided are an inkjet printer and an inkjet printing method with which, when image forming is performed on a web-shaped printing base material with inkjet inks, nozzles for discharging the inks are less liable to clog, streaks or density unevenness is less liable to occur at the time of solid printing, and a density of a single-color printing portion is easily increased. The inkjet printer for an inkjet ink is configured to perform image forming by discharging inkjet inks on a web-shaped printing base material by a single-pass method. The inkjet printer includes: a conveyance mechanism configured to continuously convey the web-shaped printing base material; a plurality of single-pass inkjet heads configured to discharge the inkjet inks to a front surface of the web-shaped printing base material conveyed by the conveyance mechanism; and a curing device configured to cure the inkjet inks discharged on the front surface of the web-shaped printing base material. Resolutions of the plurality of single-pass inkjet heads are varied depending on colors of the inkjet inks.
Abstract:
Provided are a modular processing unit that is standardizable, capable of enhancing production efficiency, and is also flexibly customizable, and a fully automatic gravure cylinder manufacturing system using the modular processing unit. The modular processing unit includes a pair of frame members provided upright so as to face each other, a first processing module including a first processing bath module, a first beam module provided horizontal to a floor, and a first chuck module, and a second processing module including a second processing bath module, a second beam module provided horizontal to the floor, and a second chuck module. The modular processing unit has multi-stage structure with at least the first processing module and the second processing module being assembled onto the frame members.
Abstract:
Provided is a processing unit including a condenser, which is capable of condensing, during a plate-making process to be performed by the processing unit in a fully automatic gravure plate-making processing system, a processing solution vaporized into the form of mist so as to reuse the resultant as the processing solution, and to provide a fully automatic gravure plate-making processing system using the processing unit including a condenser. The processing unit includes a condenser, which is to be used for a fully automatic gravure plate-making processing system for manufacturing a plate-making roll by performing a series of processes on an unprocessed plate-making roll. The processing unit includes: a processing bath; chuck means for holding a gravure cylinder inside the processing bath; an intake port for taking in air, which is provided in a part of the processing bath; an exhaust port for exhausting gas, which is provided in another part of the processing bath; a condenser provided between the processing bath and the exhaust port; and a processing solution return pipe for returning, to the processing bath, a processing solution obtained by the condenser that liquefies a part of the gas to be exhausted.
Abstract:
An inkjet printer for preventing ink flow, color blurring and color mixing during multicolor printing when image formation is performed with aqueous ink on a web-shaped printing base material, and an inkjet printing method using the inkjet printer. The inkjet printer is configured to perform image formation by discharging aqueous ink to a web-shaped printing base material, and includes: a conveyance mechanism configured to continuously convey the web-shaped printing base material; a single-pass system inkjet head configured to discharge the aqueous ink to a surface of the web-shaped printing base material conveyed by the conveyance mechanism; and a surface pre-heating unit arranged on an upstream side of conveyance from the single-pass system inkjet head and configured to heat at least the surface of the web-shaped printing base material. Image formation is performed on the web-shaped printing base material heated by the surface pre-heating unit.
Abstract:
Provided is a gripping portion structure of a gravure plate-making robot in which the accurate gripping of an unprocessed plate-making roll and the positioning accuracy during transfer of the unprocessed plate-making roll to each processing device can be improved by causing a gravure plate-making robot to exhibit a high gripping force when gripping the unprocessed plate-making roll. The gripping portion structure of a gravure plate-making robot to be used in a fully automatic gravure plate-making processing system for manufacturing a gravure plate-making roll by gripping and transferring an unprocessed plate-making roll to each processing device includes: a pair of gripping plates to be mounted on an arm distal end of the gravure plate-making robot, the pair of gripping plates being freely spaced widely or narrowly from each other, and being configured to grip both end portions of the unprocessed plate-making roll; and a gripping surface forming member provided on each of the pair of gripping plates, the gripping surface forming member having a gripping surface that is curved so as to be recessed toward a center of the end portion of the unprocessed plate-making roll to be gripped and having a non-slip function.
Abstract:
Provided is an aqueous gravure ink that is environmentally friendly, allows high-resolution printing by virtue of its excellent highlight suitability, and is excellent in drying property. The aqueous gravure ink comprises: a pigment; a polymer; a water-soluble organic solvent; a surfactant; and water, in which the water-soluble organic solvent has a boiling point of 100° C. or more and 260° C. or less, in which a content of the water-soluble organic solvent in the aqueous gravure ink is 10 mass % or more and 35 mass % or less, and in which a content of the water in the aqueous gravure ink is 50 mass % or more and 70 mass % or less.
Abstract:
Provided are a non-conductive antibacterial sheet, a method for manufacturing thereof, and an antibacterial method, wherein it is enough that the feature height of the non-conductive antibacterial sheet is shallower than the conventional one, and hence many materials may be used for preparation thereof. The non-conductive antibacterial sheet of an acrylic resin comprises a micropatterned concave and convex surface in which there are produced concave and convex micropattern groups by forming multiple protrusion portions each having a nearly rectangular shape in a plane view on the surface thereof, wherein the protrusion portions are regularly formed in an x-direction and a y-direction orthogonal thereto with x-direction spaces and y-direction spaces, the both spaces having predetermined widths; a height from the surface of the sheet to the top of the protrusion portion is 0.4 μm to 1 μm; a bottom width of the protrusion portion is 2 μm to 3 μm, and the width of the x-direction space is equal to the bottom width of the protrusion portion; and the non-conductive antibacterial sheet exhibits an antibacterial effect in such a way that bacteria which are in static contact with the micropatterned surface are not trapped in the x-direction spaces.