Abstract: Provided is a method for manufacturing a ribbon piece that allows suppressing a damage of a rotary die cutter. A method for manufacturing a ribbon piece of the present disclosure includes punching out a ribbon piece from a ribbon material using a rotary die cutter. The rotary die cutter includes a die roll and an anvil roll. The die roll includes a die roll body, and a cutting blade is formed to protrude on an outer peripheral surface of the die roll body. The anvil roll includes an anvil roll body, a groove is provided on an outer peripheral surface of the anvil roll body, and the cutting blade is engageable with the groove with a space.

Abstract: This roll cutter device is provided with roll units in which a thin plate material is passed between a pair of rolls. Three sets of the roll units are provided in an axial direction of the rolls in such a way that central axes of the rolls lie on one straight line in the axial direction. The configuration is such that a plurality of the roll units including an upper roll and a receiving roll exist in the axial direction.

Abstract: This roll cutter device is provided with roll units in which a thin plate material is passed between a pair of rolls. Three sets of the roll units are provided in an axial direction of the rolls in such a way that central axes of the rolls lie on one straight line in the axial direction. The configuration is such that a plurality of the roll units including an upper roll and a receiving roll exist in the axial direction.

Abstract: A one-surface groove for wiring is formed in a front surface 2a, opposite-surface grooves for wiring are formed in a back surface 2b by protruding core members, and communication parts for allowing the one-surface groove and the opposite-surface grooves to communicate with each other are formed to shape a board section 2 made of a non-conductive resin. After the core members are retracted, a conduction-side resin, which will become conductive, is shaped in the one-surface groove, the opposite-surface grooves, and the communication parts to form front-side wiring 3, communication wirings 4, and back-side wirings 5, whereby a wiring circuit component is provided.

Abstract: Tensile strength in a width direction and a longitudinal direction is improved without damaging a ventilation characteristic. A perforated film is a perforated film provided with holes, each of the holes is arranged at an intersection of a plurality of virtual lines extending along a direction and a plurality of virtual lines extending along a direction, and the direction is different from the width direction and the longitudinal direction. The direction and the direction may be both inclined at an angle larger than 30° and smaller than 60° to the width direction.

Abstract: A one-surface groove for wiring is formed in a front surface 2a, opposite-surface grooves for wiring are formed in a back surface 2b by protruding core members, and communication parts for allowing the one-surface groove and the opposite-surface grooves to communicate with each other are formed to shape a board section 2 made of a non-conductive resin. After the core members are retracted, a conduction-side resin, which will become conductive, is shaped in the one-surface groove, the opposite-surface grooves, and the communication parts to form front-side wiring 3, communication wirings 4, and back-side wirings 5, whereby a wiring circuit component is provided.

Abstract: Tensile strength in a width direction and a longitudinal direction is improved without damaging a ventilation characteristic. A perforated film is a perforated film provided with holes, each of the holes is arranged at an intersection of a plurality of virtual lines extending along a direction and a plurality of virtual lines extending along a direction, and the direction is different from the width direction and the longitudinal direction. The direction and the direction may be both inclined at an angle larger than 30° and smaller than 60° to the width direction.

Abstract: A film coated with a metal foil is embossed beforehand by a film shaping male mold to impart to the film a shape conformed to a formed article. The film shaping male mold and an injection molding male mold are slid, and injection molding is performed, with the embossed film coated with the metal foil being sandwiched between the injection molding male mold and a shaping female mold. As a result, the metal foil of the film coated with the metal foil is transferred to a product having a deeply concavo-convex surface, without damage to the metal foil, with the quality of the product being ensured.

Abstract: A film coated with a metal foil is embossed beforehand with a shape conformed to a formed article. Injection molding is performed, with the embossed film coated with the metal foil being sandwiched between an injection molding male mold and an injection molding female mold. As a result, the metal foil of the film coated with the metal foil is transferred to a product having a deeply concavo-convex surface, without damage to the metal foil, with the quality of the product being ensured.