| THINK LABORATORY CO., LTD. Patent applications |
| Patent application number | Title | Published |
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| 20100089263 | DOCTOR BLADE - Provided is a doctor blade for use with a gravure printing roll, which hardly causes fogging even when it is used for the gravure printing using aqueous ink at the same printing speed as that of the gravure printing using oil based ink, can upgrade the gravure printing using the aqueous ink to a practical level, and can have an extended service life. The doctor blade includes a doctor blade body having a distal end with a knife edge portion, for filling gravure cells with ink and scraping off surplus ink with the knife edge portion being brought into contact with a gravure printing roll through a relative movement of the doctor blade to the gravure printing roll, in which at least the knife edge portion of the doctor blade body is coated with a silicon dioxide film, and the silicon dioxide film is formed by using a perhydropolysilazane solution. | 04-15-2010 |
| 20100064918 | GRAVURE PRINTING ROLL WITH CUSHION LAYER AND METHOD OF PRODUCING THE SAME - Provided is a method of producing a printing plate, especially a gravure plate with cushion properties, which enables direct gravure printing on a hard printing target without using a blanket roll owing to being provided with cushion properties, effects a satisfactory gravure printing on a rough surface such as corrugated cardboard, and is suitable for color-printing a matrix image for forming a color filter on glass for liquid crystal panels or an image on a compact disk or the like. The gravure plate includes a hollow roll provided on the surface thereof with a cushion layer formed of rubber or resin with cushion properties, a copper-plated layer formed on the surface of the cushion layer and formed on the surface thereof with multiple gravure cells, a metal layer formed on the surface of the copper-plated layer, a metal carbide layer formed on the surface of the metal layer, and a diamond-like carbon film for covering the surface of the metal carbide layer. | 03-18-2010 |
| 20090266254 | GRAVURE PRINTING ROLL AND METHOD OF MANUFACTURING THE SAME - Disclosed is a novel gravure printing roll which has no toxicity, causes no deterioration of the environment, has a surface-reinforcing coating layer and is excellent in print durability and printing performance. Also disclosed is a method of manufacturing of the gravure printing roll. The gravure printing roll includes a hollow roll, a copper plating layer which is formed on a surface of the hollow roll and has a large number of gravure cells, and a diamond-like carbon coating layer covering the surface of the copper plating layer, in which each of the gravure cells coated with the diamond-like carbon coating layer has a depth of 5 μm or more and less than 10 μm. | 10-29-2009 |
| 20090095633 | COPPER PLATING METHOD AND APPARATUS FOR A GRAVURE CYLINDER - The present invention provides a copper plating method and apparatus for a gravure cylinder in which copper plating with more uniform thickness can be provided over a full length of a gravure cylinder without causing defects such as rashes and pits irrespective of a size of the gravure cylinder, concentration of a copper plating solution can be managed automatically, a consumption amount of an additive is reduced to make it possible to perform a plating treatment within a short period of time, a power supply cost is reduced, and handling is easy with excellent visibility. A gravure cylinder in a hollow cylindrical shape is held at both ends in a longitudinal direction. The gravure cylinder is accommodated in a plating bath filled with a copper plating solution. The gravure cylinder is energized so that the gravure cylinder functions as a cathode while being rotated at a predetermined speed. A pair of anode chambers in a long box shape, in which insoluble anodes are provided upright slidably to both sides of the gravure cylinder in the plating bath and energized so as to function as an anode, are brought close to both side surfaces of the gravure cylinder at a predetermined interval. Copper plating is provided on an outer peripheral surface of the gravure cylinder. | 04-16-2009 |
| 20090075116 | GRAVURE PLATE-MAKING ROLL AND METHOD OF PRODUCING THE SAME - A novel gravure engraving roll that has a surface-reinforcing coating layer being nontoxic and having no danger of pollution generation at all and that excels in printing life; and a process for producing the same. There is provided a gravure engraving roll comprising: a metal hollow roll; a copper plating layer superimposed on the surface of the hollow roll and on its surface furnished with a multiplicity of gravure cells; a metal layer superimposed on the surface of the copper plating layer; a layer of carbide of said metal superimposed on the surface of the metal layer; and a diamond-like carbon coating covering the surface of the metal carbide layer. | 03-19-2009 |
| 20090068421 | GRAVURE PRINTING ROLL AND MANUFACTURING METHOD THEREOF - The present invention provides a novel gravure printing roll which includes a surface reinforcing coating layer having no toxicity and no possibility of causing pollution, and which has excellent printing resistance, and a manufacturing method thereof. The gravure printing roll includes: a plate base material; a copper plating layer formed on a surface of the plate base material and having multiple gravure cells formed thereon; and a silicon dioxide film which covers a surface of the copper plating layer, in which the silicon dioxide film is formed by using a perhydropolysilazane solution. The copper plating layer has a thickness of from 50 to 200 μm, the gravure cell has a depth of from 5 to 150 μm, and the silicon dioxide film has a thickness of from 0.1 to 5 μm, preferably 0.1 to 3 μm, and more preferably 0.1 to 1 μm. | 03-12-2009 |
