Abstract: The present invention has an object to provide a fiber-spreading method which can form a thin spread fiber sheet having a large and uniform spread width by uniformly distributing fibers of a fiber bundle having an increased number of fibers. Since a set of regions Si each including a pair of a fiber-spreading region Ai and an expansion region Bi are arranged in a movable region M set so that the fibers of the fiber bundle can move in the width direction, the fiber-spreading region Ai moving the fibers in the width direction while bending the fibers by letting a fluid pass through the fiber bundle, thereby spreading the fiber bundle to a spread width Wi (i=1, . . .

Abstract: An end of a sheet drawn out form a feeder is clamped by a pair of upper and lower clamping devices of two or more pairs. The sheet is drawn out from the initial position to the end position in a spread state. While the spread sheet is being tentered on pin tenters, another pair of upper and lower clamping devices at the end position is separated from each other and moved along the respective rails into the initial position. The end of the sheet drawn out from the feeder is clamped from above and below at the initial position with the upper and lower clamping devices that has returned to the initial position.

Abstract: A method of producing a spread multi-filament bundle along with an apparatus used in the same, by which a multi-filament bundle is spread with high speed and facility, and a high quality spread multi-filament bundle or sheet with the component monofilaments thereof aligned in parallel widthwise and uniformly distributed in density is produced.

Abstract: An end of a sheet drawn out form a feeder is clamped by a pair of upper and lower clamping devices of two or more pairs. The sheet is drawn out from the initial position to the end position in a spread state. While the spread sheet is being tentered on pin tenters, another pair of upper and lower clamping devices at the end position is separated from each other and moved along the respective rails into the initial position. The end of the sheet drawn out from the feeder is clamped from above and below at the initial position with the upper and lower clamping devices that has returned to the initial position.

Abstract: The present invention provides a high-quality multilayer thermoplastic-resin-reinforced sheet material having excellent mechanical properties and drapeability in which a thermoplastic resin excellent in recycling efficiency and shock resistance is used as a matrix; a method for efficiently producing the multilayer thermoplastic-resin-reinforced sheet material in a short time; and a thermoplastic-resin multilayer reinforced molding formed of the multilayer thermoplastic-resin-reinforced sheet material, in which the high quality and the mechanical properties are maintained.

Abstract: An object of the present invention is to provide a laminated molding having high strength and reduced possibility of layer separation, a multiaxially reinforced laminated molding capable of reducing the production time and the production cost, and a method for producing the same. A multiaxially reinforced laminated molding (F) is formed of fiber-reinforced layers (SR1 to SR3), each including reinforcing fiber sheets stacked on top of each other such that reinforcing fibers of the reinforcing fiber sheets are oriented in three axial directions. Resin layers (TP1 and TP2) are disposed among the fiber-reinforced layers. The resin layers (TP1 and TP2) are formed of many particles of a thermoplastic resin material that are substantially uniformly distributed and heat-sealed together. The distributed thermoplastic resin material is adhered to the adjacent fiber-reinforced layer through heat-sealing.

Abstract: A method of producing a spread multi-filament bundle along with an apparatus used in the same, by which a multi-filament bundle is spread with high speed and facility, and a high quality spread multi-filament bundle or sheet with the component monofilaments thereof aligned in parallel widthwise and uniformly distributed in density is produced.

Abstract: A method of producing a spread multi-filament bundle and an apparatus is used in which an arbitrary number of multi-filament bundles of higher strength are simultaneously spread with high speed and a high-quality. A spread multi-filament bundle or sheet with the component monofilaments thereof aligned in parallel widthwise and uniformly distributed in density is produced. The respective multi-filament bundles fed from a yarn supplier or a creel are subjected to fluctuation of the tensile force applied thereto alternatively between tension and relaxation and the respective bundles as subjected to such fluctuation are passed in succession through a fluid flowing spreader.

Abstract: An end of a sheet drawn out form a feeder is clamped by a pair of upper and lower clamping devices of two or more pairs. The sheet is drawn out from the initial position to the end position in a spread state. While the spread sheet is being tentered on pin tenters, another pair of upper and lower clamping devices at the end position is separated from each other and moved along the respective rails into the initial position. The end of the sheet drawn out from the feeder is clamped from above and below at the initial position with the upper and lower clamping devices that has returned to the initial position.

Abstract: A fiber-reinforced sheet comprises a first fiber sheet having a fiber bundle arranged and arrayed in one direction and arranged along the longitudinal direction of the fiber-reinforced sheet. The fiber bundle is so folded back at an inclination of a winding angle of ? degrees that the first fiber sheet is helically wound on the fiber-reinforced sheet. The fiber-reinforced sheet has three layers including: the first fiber sheet having the fiber bundle at an angle of 0 degrees with respect to the longitudinal direction; a second fiber sheet at an angle of +? degrees; and a third fiber sheet at an angle of ?? degrees.

Abstract: A method of producing a spread multi-filament bundle and an apparatus is used in which an arbitrary number of multi-filament bundles of higher strength are simultaneously spread with high speed and a high-quality. A spread multi-filament bundle or sheet with the component monofilaments thereof aligned in parallel widthwise and uniformly distributed in density is produced. The respective multi-filament bundles fed from a yarn supplier or a creel are subjected to fluctuation of the tensile force applied thereto alternatively between tension and relaxation and the respective bundles as subjected to such fluctuation are passed in succession through a fluid flowing spreader.

Abstract: Fiber composite materials using thin plies with a thickness of less than 0.08 mm provide improved delamination resistance and thinner minimum gauge for laminates. Thin plies may be hybridized with conventional plies, interlaced for strength, and used with adhesives as reinforcement in bonding.

Abstract: The present invention aims to provide a method of producing a high-quality multi-filament spread sheet by spreading the filaments in such a manner that they are orderly disposed in parallel to each other without the quality deterioration and an apparatus used in the same as well as a multi-filament spread sheet produced in the same. The method and apparatus embodied in the present invention are intended to spread the filaments widthwise by subjecting a multi-filament oversupplied by a certain amount under a feeding control mechanism from a yarn supply section to a yarn winding section to air blowing crosswise with the multi-filament so as to transform the filaments into a multi-filament spread sheet. With this method and apparatus, it becomes possible to obtain various types of multi-filament spread sheets.