Abstract: A sleeve soldering device has a displacement sensor and a heat flux sensor. The displacement sensor detects a physical quantity related to a pressure from a heated sleeve heated by a heater onto an electric board when the heated sleeve presses the electric board. The displacement sensor detects a physical quantity related to a deformation amount of the electric board due to thermal energy from the heater. The heat flux sensor detects a physical quantity related to a heat transfer amount from the heater to the electric board when the heated sleeve is pressed to the electric board. A control part compares each of detection values obtained from the displacement sensor and the heat flux sensor with a respective judgment reference so as to detect whether each detection value satisfies the respective reference.

Abstract: A sleeve soldering device has a displacement sensor and a heat flux sensor. The displacement sensor detects a physical quantity related to a pressure from a heated sleeve heated by a heater onto an electric board when the heated sleeve presses the electric board. The displacement sensor detects a physical quantity related to a deformation amount of the electric board due to thermal energy from the heater. The heat flux sensor detects a physical quantity related to a heat transfer amount from the heater to the electric board when the heated sleeve is pressed to the electric board. A control part compares each of detection values obtained from the displacement sensor and the heat flux sensor with a respective judgment reference so as to detect whether each detection value satisfies the respective reference.

Abstract: A display panel has a resin substrate and a printed layer formed on at least a part of the resin substrate through inkjet printing. The printed layer is formed from cured products of UV-curable inks each containing UV-curable monomers which are polymerized and cured by UV irradiation, and the printed layer has at least two such cured products having different pencil hardness values.

Abstract: A display panel has a resin substrate and a printed layer formed on at least a part of the resin substrate through inkjet printing. The printed layer is formed from cured products of UV-curable inks each containing UV-curable monomers which are polymerized and cured by UV irradiation, and the printed layer has at least two such cured products having different pencil hardness values.

Abstract: In a method of manufacturing a display panel that includes a base and a printed layer printed on the base by inkjet printing, a color UV curable ink is deposited on a predetermined portion of the base for forming a color printed portion of the printed layer, and a transparent UV curable ink is deposited in at least one of a first depression provided by the color printed portion on a surface of the base and a second depression formed on a surface of the color printed portion for forming a transparent printed portion.

Abstract: An indicator panel is shaped by thermoforming an indicator panel. The indicator panel includes a resin substrate and an inkjet design film on the substrate. The design film is formed by printing a UV hardening ink in an inkjet printing, and hardening. A crack and a removal of the design film can be decreased such that the formed indicator panel can have a high-quality design.

Abstract: An indicator panel for an instrument includes a translucent resin substrate having a first face and a second face opposite to the first face, and a design film on the first face of the substrate. The design film includes a translucent portion through which a light from the second surface of the substrate is transmitted, and an opaque portion which does not transmit the light from the second face of the substrate. The design film is produced by jetting droplets of a UV hardening type colored ink to the first face of the substrate in an inkjet printing, and radiating ultraviolet rays for a time within one second from the jetting so as to harden a mass of the droplets, in which a volume of the droplets is equal to or less than 30 pl.

Abstract: An indicator panel is shaped by thermoforming an indicator panel. The indicator panel includes a resin substrate and an inkjet design film on the substrate. The design film is formed by printing a UV hardening ink in an inkjet printing, and hardening. A crack and a removal of the design film can be decreased such that the formed indicator panel can have a high-quality design.

Abstract: An indicator panel for an instrument includes a translucent resin substrate having a first face and a second face opposite to the first face, and a design film on the first face of the substrate. The design film includes a translucent portion through which a light from the second surface of the substrate is transmitted, and an opaque portion which does not transmit the light from the second face of the substrate. The design film is produced by jetting droplets of a UV hardening type colored ink to the first face of the substrate in an inkjet printing, and radiating ultraviolet rays for a time within one second from the jetting so as to harden a mass of the droplets, in which a volume of the droplets is equal to or less than 30 pl.

Abstract: A display panel includes a transparent image recording sheet having electrophotographically formed thereon at least a background portion, wherein space factor of pinholes per unit area of the background portion is no greater than 1×10?2%. A method of manufacturing the display panel is also disclosed. The background portion has a transparent optical density of 3.0 or greater and an image portion has a transparent optical density of 1.0 or less, and preferably 0.1 to 1. A toner used for electrophotographically forming the background portion and the image portion has a number average molecular weight of 1,000 to 6,000 and a weight average molecular weight of 30,000 to 150,000 as measured by gel permeation chromatography with respect to a portion of the toner dissolved in tetrahydrofuran, and has respective molecular weight distribution peaks in molecular weight ranges of 1000 to 10,000 and 100,000 to 1,500,000.

Abstract: A display panel includes a transparent image recording sheet having electrophotographically formed thereon at least a background portion, wherein space factor of pinholes per unit area of the background portion is no greater than 1×10?2%. A method of manufacturing the display panel is also disclosed. The background portion has a transparent optical density of 3.0 or greater and an image portion has a transparent optical density of 1.0 or less, and preferably 0.1 to 1. A toner used for electrophotographically forming the background portion and the image portion has a number average molecular weight of 1,000 to 6,000 and a weight average molecular weight of 30,000 to 150,000 as measured by gel permeation chromatography with respect to a portion of the toner dissolved in tetrahydrofuran, and has respective molecular weight distribution peaks in molecular weight ranges of 1000 to 10,000 and 100,000 to 1,500,000.

Abstract: A display panel includes a transparent image recording sheet having electrophotographically formed thereon at least a background portion, wherein space factor of pinholes per unit area of the background portion is no greater than 1×10?2%. A method of manufacturing the display panel is also disclosed. The background portion has a transparent optical density of 3.0 or greater and an image portion has a transparent optical density of 1.0 or less, and preferably 0.1 to 1. A toner used for electrophotographically forming the background portion and the image portion has a number average molecular weight of 1,000 to 6,000 and a weight average molecular weight of 30,000 to 150,000 as measured by gel permeation chromatography with respect to a portion of the toner dissolved in tetrahydrofuran, and has respective molecular weight distribution peaks in molecular weight ranges of 1000 to 10,000 and 100,000 to 1,500,000.

Abstract: A method of manufacturing a back light type display panel includes a first step of forming on a transparent base film an opaque area of a thick layer of toner particles and a transparent area of a thin layer of toner particles, a second step of covering the opaque and transparent areas of the base film with a transparent protection film. In this step, a thermoplastic adhesive agent is coated on the protection film to form a laminate member of thick and thin layers of toner and the protection film. The method further includes a third step of vacuuming the laminate member and its surrounding, and a fourth step of heating the laminate member to be lower for the toner to melt and sufficiently high for the adhesive agent to have a characteristic of tack and pressing the laminate member at a first pressure by a pair of pressing boards, and a fifth step of heating the laminate member to be sufficiently high for the toner to melt.

Abstract: A display panel includes a transparent image recording sheet having electrophotographically formed thereon at least a background portion, wherein space factor of pinholes per unit area of the background portion is no greater than 1×10−2%. A method of manufacturing the display panel is also disclosed. The background portion has a transparent optical density of 3.0 or greater and an image portion has a transparent optical density of 1.0 or less, and preferably 0.1 to 1. A toner used for electrophotographically forming the background portion and the image portion has a number average molecular weight of 1,000 to 6,000 and a weight average molecular weight of 30,000 to 150,000 as measured by gel permeation chromatography with respect to a portion of the toner dissolved in tetrahydrofuran, and has respective molecular weight distribution peaks in molecular weight ranges of 1000 to 10,000 and 100,000 to 1,500,000.

Abstract: A display board has a substrate, a transparent photopolymerization resin layer formed on the substrate, and a picture layer formed in a surface of the transparent photopolymerization resin layer. The picture layer is composed of at least one dots-shaped colored photopolymerization resin. This display board is produced by exposing a colored photopolymerization resin film supported by a support member through a negative having a predetermined picture pattern to form a dots-shaped colored photopolymerization resin layer on the support member, transferring the dots-shaped colored photopolymerization resin layer to a surface of a transparent photopolymerization resin layer formed on a substrate to form a picture layer in the surface of the transparent photopolymerization resin layer, and setting the transparent photopolymerization resin layer in which the picture layer is formed to fix the picture layer.

Abstract: A display board has a light transmitting substrate illuminated by a light source at the back side, a illuminance adjusting layer having a plurality of light reflective dots and formed on the surface at the front side of the substrate, and a colored light transmitting image layer formed on the illuminance adjusting layer. This display board is manufactured by forming a illuminance adjusting layer and image layer sequentially on the same side of the substrate.

Abstract: A peel-off developable pattern sheet comprising a transparent flexible substrate having thereon a pattern comprising a photopolymerizable color image-forming material layer and a process for producing a monochromatic or multi-color patterned display element by making use of the pattern sheet(s) are disclosed. A patterned display element can be produced in a continuous manner in an organic solvent-free working environment. The formed pattern has excellent sharpness and well-controlled surface properties.

Abstract: The present invention relates to an insulating coating material for an electronic circuit board, an insulating coating layer for an electronic circuit board, and a method for forming such insulating coating layer, and the insulating coating material is a solution comprising a thermoplastic resin and a solvent containing a low boiling solvent, which solution can be prevented from dropping after its application onto the electronic circuit board, and the insulating coating layer is formed using the coating material on the surface of the electronic circuit board having edge portions thereon so that the coating thickness at the edge portions and that at the other portion than the edge portions are almost equal to each other, further, the method for forming such insulating coating layer is characterized by forming the coating layer using the above insulating coating material according to a spray method or a dipping method.

Abstract: A display such as meter panel and advertising display comprises a color image forming layer provided on a light-transmitting permanent support via a photo-polymerizable adhesive layer, and a photo-polymerizable image-receiving layer closely adhered to the color image forming layer. The display can be effectively produced by a process comprising the steps of forming a color image on a photo-polymerizable image-receiving layer of a photosensitive image-receiving material, placing it upon a photo-polymerizable adhesive layer formed on a light-transmitting permanent support to form a laminate so that the photo-polymerizable image-receiving layer and the photo-polymerizable adhesive layer face each other and then exposing the laminate to light so as to closely adhere the photo-polymerizable image-receiving layer and the photo-polymerizable adhesive layer to their adjacent layers, respectively, by the photo-polymerization.

Abstract: The present invention relates to an insulating coating material for an electronic circuit board, an insulating coating layer for an electronic circuit board, and a method for forming such insulating coating layer, and the insulating coating material is a solution comprising a thermoplastic resin and a solvent containing a low boiling solvent, which solution can be prevented from dropping after its application onto the electronic circuit board, and the insulating coating layer is formed using the coating material on the surface of the electronic circuit board having edge portions thereon so that the coating thickness at the edge portions and that at the other portion than the edge portions are almost equal to each other, further, the method for forming such insulating coating layer is characterized by forming the coating layer using the above insulating coating material according to a spray method or a dipping method.