Abstract: An extremely practical prepreg manufacturing device whereby a fiber body can be easily impregnated with a high-viscosity, low-concentration thermosetting resin using existing hot-melt method equipment, without having to use a solvent. In a prepreg manufacturing device for manufacturing a prepreg (5) by laminating and heating a resin sheet (4) formed by laminating a resin (3) with a release film (2), a resin sheet feeding mechanism (6) for feeding the resin sheet (4) laminated with a conveyed fiber body (1) comprises a release film feeding part (7) for feeding the release film (2), and a resin application part (8) for applying the resin (3) on the release film (2), the resin (3) containing a solvent. The resin sheet feeding mechanism (6) is configured so that the fiber body (1) is laminated with the resin sheet (4) formed by laminating the resin (3) with the release film (2), without the resin sheet (4) being formed into a roll shape.

Abstract: According to the present invention there is provided a method for opening a fabric, in which warp and weft yarns can be uniformly opened using a simple method without having to alter the fabric weaving procedure. The method is a method for opening a fabric (4) produced by weaving a warp yarn (2) and a weft yarn (3), each of which having a bundled plurality of fiber filaments (1). A contact body (6) is provided to a surface of the fabric (4) with a protective film (5) interposed therebetween, and the contact body (6) is caused to move over the fabric (4) obliquely, and in a relative manner, with respect to the longitudinal direction of the warp yarn (2) or the weft yarn (3), whereby the warp yarn (2) or the weft yarn (3) is spread.

Abstract: An extremely practical prepreg manufacturing device whereby a fiber body can be easily impregnated with a high-viscosity, low-concentration thermosetting resin using existing hot-melt method equipment, without having to use a solvent. In a prepreg manufacturing device for manufacturing a prepreg (5) by laminating and heating a resin sheet (4) formed by laminating a resin (3) with a release film (2), a resin sheet feeding mechanism (6) for feeding the resin sheet (4) laminated with a conveyed fiber body (1) comprises a release film feeding part (7) for feeding the release film (2), and a resin application part (8) for applying the resin (3) on the release film (2), the resin (3) containing a solvent. The resin sheet feeding mechanism (6) is configured so that the fiber body (1) is laminated with the resin sheet (4) formed by laminating the resin (3) with the release film (2), without the resin sheet (4) being formed into a roll shape.

Abstract: According to the present invention there is provided a method for opening a fabric, in which warp and weft yarns can be uniformly opened using a simple method without having to alter the fabric weaving procedure. The method is a method for opening a fabric (4) produced by weaving a warp yarn (2) and a weft yarn (3), each of which having a bundled plurality of fiber filaments (1). A contact body (6) is provided to a surface of the fabric (4) with a protective film (5) interposed therebetween, and the contact body (6) is caused to move over the fabric (4) obliquely, and in a relative manner, with respect to the longitudinal direction of the warp yarn (2) or the weft yarn (3), whereby the warp yarn (2) or the weft yarn (3) is spread.

Abstract: Disclosed is a process for making a preliminarily printed formed body, which is characterized in that a halftone separated rectangular printing plate is once made from a rectangular original, halftone dots of each halftone-separated image are developed on an annular plane by picture element units finer than the halftone dots to deform the shapes of the dots, an annular halftone dot image is formed based on the changes of the shapes of the halftone dots and a halftone printing plate for the annular halftone dot image is made, and this halftone printing plate is applied to a blank to be formed. According to this process undesirable formation of a striped pattern caused by the elongating flow of the blank in the height direction and the contracting flow of the blank in the circumferential direction is prevented and a strange feeling is not given to the printed image, and a faithful printed image can be reproduced.

Abstract: The present invention relates to a process for preparing a printed can be draw-forming or draw-redraw-forming a preliminarily printed metal blank or laminate. By forming an original plate for printing by an image processing by a computer, a print image faithful to the original image can be manifested on the side wall portion of the can, and formation of an undesirable stripe pattern can be prevented. Furthermore, a print image excellent in the linearity can be displayed without an error on the draw-formed can in due consideration of the anisotropy owing to the plastic flow of the blank.

Abstract: Disclosed is a method for preliminarily printing a blank for a tapered draw-formed body, which comprises transforming digital rectangular coordinates to annular coordinates so that the height of the rectangular coordinates is made to correspond to the height of a tapered plane on which the printed image is to be manifested and the change of the area of the tapered plane by a minute change of the height of the tapered plane is made equal to the change of the area of the annular plane. In this method, excessive flattening of the image in the lateral direction is prevented when the resulting preliminarily printed blank is draw-formed, and an image having a beautiful appearance and a high commercial value can be reproduced.

Abstract: A number of rods are disposed along at least three differently oriented axes, the rods being formed by bonding together bundles of fibers with a matrix. Each rod in one group is passed between rods of the other differently oriented groups. The cross-sectional shape of a rod extending in at least one direction is matched to the shape of a clearance which is left between rods extending in other directions to admit the rod inserted therethrough. Put otherwise, a rod extending in at least one direction has a projection to fill such a clearance. Great enough strength to withstand external forces exerted from any direction is imparted to the three-dimensional fabric composite materials either by increasing the area of contact between individual rods or by minimizing the clearances between rods by means of a matrix or the like.

Abstract: A number of rods are disposed along at least three differently oriented axes, the rods being formed by bonding together bundles of fibers with a matrix. Each rod in one group is passed between rods of the other differently oriented groups. The cross-sectional shape of a rod extending in at least one direction is matched to the shape of a clearance which is left between rods extending in other directions to admit the rod inserted therethrough. Put otherwise, a rod extending in at least one direction has a projection to fill such a clearance. Great enough strength to withstand external forces exerted from any direction is imparted to the three-dimensional fabric composite materials either by increasing the area of contact between individual rods or by minimizing the clearances between rods by means of a matrix of the like.

Abstract: A three-dimensional fabric is woven by disposing a large number of contiguous rotors in columns and rows in an area in which carriers move about, with a carrier holding a thread being held between a pair of adjoining rotors. One of the paired rotors turns to move the carrier held between them while using the other rotor as a guide to help the transfer of the carrier. The carrier is caused to move along a predetermined path by repeating the above cycle.

Abstract: A multicolor printing method for printing multicolor picture images upon a material or object to be printed comprises the steps of, in accordance with a first embodiment of the invention, the formation of a multicolor toner image upon a flexible belt by means of electrophotographic printing methods or techniques, and the transfer of such multicolor toner image directly to the material or object to be printed, such as, for example, a container made of, for example, metal, paper, plastic, glass, or the like, by means of a thermo-transferring process. In accordance with a second embodiment of the invention, the multicolor toner image is formed upon a plastic film, which is laminated upon the flexible belt, by means of electrophotographic printing methods or techniques, and the plastic film is then transerred to and fused upon the container.

Abstract: A process for the preparation of a printed draw-formed body having a printed image on the side wall thereof by subjecting a prior-printed blank to draw-forming, which comprises converting an image of an original to be printed to a digital image element signal on a rectangular coordinate, converting the image element signal on the rectangular coordinate to an image signal or image signals on a corresponding conversion coordinate formed by developing the rectangular coordinate to an annular plane having an area substantially equal to the area of said rectangle, reading image element signals on the conversion coordinate in order of the coordinate, photo-electrically converting the read image element signals to a printing plate for the blank and printing the blank by using the formed printing plate. According to this process, since digital coordinate conversion is performed while compensating anisotropy of the elongation of the metal blank, an improved printing precision can be obtained in a draw-formed body.