摘要:
An ink jet recording method which can realize a sharp image and ink dots having excellent circularity is disclosed. The ink jet recording method comprises the step of ejecting ink droplets of an ink composition onto a recording medium to form an ink image on the recording medium, the ink composition having a contact angle with a sized recording paper of 0.degree., as measured one sec after the initiation of contact of the ink composition with the sized recording paper, and containing not less than 60% by weight of water, the recording medium having an ink-repellent layer comprising a water-soluble silicone compound and/or a water-soluble fluorine compound.
摘要:
A recording medium and a recording method are provided which, in a printer comprising a recording head for performing recording without contact with a recording medium and means for changing the carrying direction of the recording medium, can effectively prevent contact of a recording medium with a recording head. The recording medium comprises: a recording sheet; an adhesive layer provided on one side of the recording sheet; and a release sheet provided on the adhesive layer, the recording medium having a Gurley stiffness of 200 to 1500 mgf, the adhesive layer comprising a crosslinked acrylic polymer, the recording medium being such that, in a holding power test according to JIS-Z-0237, the time taken for causing a test piece of the recording medium to drop from an adherend is 500 min or more, or when the time taken for causing a test piece of the recording medium to drop from an adherend is less than 500 min, the test piece drops as a result of coming off at the interface between the adherend and the adhesive layer.
摘要:
An ink composition for ink jet recording comprising a dye, 1 to 10% by weight of glycerin, 1 to 5% by weight of a monohydric alcohol having 4 or less carbon atoms, 0.5 to 10% by weight of 1,3-dimethyl-2-imidazolidinone and 75 to 95% by weight of water. The ink composition of the present invention can offer a good balance of properties required of the ink jet recording ink, especially quality of the print, dryability of the print, water-resistance of the print, storage stability and a property that does not attack members constituting a recording head and an ink passage.
摘要:
Characteristics of a ferroelectric liquid crystal show that ionic impurities deteriorate its display quality to a great extent. The present invention provides a ferroelectric liquid crystal display device of good display quality without the deterioration of display characteristics, as a result of trapping the ionic impurities effectively by adding an organic material which traps ions and which lowers conductivity of a liquid crystal layer thereto.
摘要:
A method and apparatus for detecting neck disconnection between a land and a line in a wiring pattern on a printed board includes a scanner for obtaining images of the wiring pattern and a through hole formed in the pattern. The image of the wiring pattern is converted to a line image representing a wiring line by thinning the pattern image. A window encompassing the image of the through hole is defined, and part of the thinned pattern image overlapping the window is extracted. The number of end points of the thinned pattern image is counted in the window. If the number of the end points is an odd number larger than one, it is determined that neck disconnection is present in the wiring pattern.
摘要:
A substructure of the body of a vehicle such as a railroad car is formed by linking first and second beams with each other. The first beams are formed of first and second members each having locking grooves, and the second beams are arranged at intervals perpendicular to the first beams, thus realizing, for example a thin-walled substructure. By virtue of the locking grooves formed thereon, the first members allow the attachment of seats or the like, and the second members allow the suspension of underfloor equipment.
摘要:
A process for production of corrugated board using an aqueous adhesive which contains polyvinyl alcohol and clay, or polyvinyl alcohol, clay and water-soluble boron compound, the ratio of clay to polyvinyl alcohol being in the range of 200 to 600 parts by weight based on 100 parts by weight of polyvinyl alcohol, the ratio of water-soluble boron compound being not more than 15 parts by weight based on 100 parts by weight of polyvinyl alcohol, the solid content of the adhesive being 25 to 60% by weight characterized in that(a) a polyvinyl alcohol concentration in the solution excluding solid other than polyvinyl alcohol from adhesive being in the region bounded by the following formulas:Y.gtoreq.-0.0014 X+9.4 (i)Y.ltoreq.-0.0061 X+26.3 (ii)200.ltoreq.X.ltoreq.3500 (iii) wherein Y is defined by the following formula: ##EQU1## and X is degree of polymerization of polyvinyl alcohol, (b) the viscosity of the adhesive measured by a Brookfield viscometer being from 200 to 6000 centipoises at 85.degree. C., and the rate of increase of the viscosity of the adhesive being in the range of 1.5 to 8 times when the temperature of adhesive is dropped from 85.degree. to 30.degree. C.,(c) the adhesive, of which temperature is 60.degree. to 95.degree. C., being applied onto the flute tips of corrugated medium to manufacture corrugated board,and an aqueous adhesive therefor. The process for production of a corrugated board has excellent effect on heat energy saving characterized in that said corrugated board can be manufactured at high speed without heating after application of the water-base adhesive at a temperature of 60.degree.-95.degree. C., and the adhesive is easy to handle and has improved adhesion property.
摘要:
A printing device includes a nozzle, a radiation unit and a control unit. The nozzle is configured to eject metallic ink including metal fragments onto a medium. The radiation unit is configured to irradiate the medium with light to temporarily cure the metallic ink. The control unit is configured to control irradiation of the light by the radiation unit so that a film thickness formed by the metallic ink is equal to or less than a length of a long side of the metal fragments when the metallic ink is temporarily cured on the medium.
摘要:
A power converter includes a base plate having thereon a switching device, and positive and negative conductors respectively including main portions disposed parallel to the base plate. One of the main portions is placed over the other of the main portions. The main portions are disposed adjacent to and parallel to each other. The main portions are insulated from each other. The power converter includes a capacitor having positive and negative terminals electrically connected to the respective main portions of the positive and negative conductors. Each of the positive and negative conductors includes a side portion extending from the main portion toward the base plate, and a terminal portion extending from the side portion and joined to the base plate. The side portion is formed with a cutout extending from the end adjacent to the base plate to the opposite end connected to the main portion.
摘要:
A power converter apparatus that includes a substrate, plate-like positive and negative interconnection members, and capacitors is disclosed. Pairs of groups of switching elements are mounted on the substrate. Each of the positive interconnection member and the negative interconnection member has a terminal portion. The terminal portion has a joint portion that is electrically joined to a circuit pattern on the substrate. The switching elements are arranged in the same number on both sides of the joint portion of at least the positive interconnection member of the positive and negative interconnection members.