초록 ▼

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

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.

대표청구항 ▼

1. A method for opening a fabric in which a fabric produced by weaving a warp yarn and a weft yarn, each having a bundled plurality of fiber filaments, is opened; the method for opening a fabric characterized in that a contact body is provided to a surface of the fabric with a protective film interp

1. A method for opening a fabric in which a fabric produced by weaving a warp yarn and a weft yarn, each having a bundled plurality of fiber filaments, is opened; the method for opening a fabric characterized in that a contact body is provided to a surface of the fabric with a protective film interposed therebetween; the contact body is provided with a contact portion for contacting a surface of the fabric with the protective film interposed therebetween, a protrusion having a convex ridge being provided to the contact portion in an annular configuration; and the contact body is caused to move over the fabric obliquely, and in a relative manner, while being caused to vibrate and rotate in an eccentric fashion, thereby spreading the warp yarn or the weft yarn. 2. The method for opening a fabric according to claim 1, characterized in that the contact body is caused to move in a relative manner with respect to the fabric. 3. The method for opening a fabric according to claim 2, characterized in that the fabric is conveyed. 4. The method for opening a fabric according to claim 1, characterized in that the fiber filaments are inorganic fiber filaments. 5. The method for opening a fabric according to claim 4, characterized in that the inorganic fiber filaments are carbon fiber filaments. 6. The method for opening a fabric according to claim 1, characterized in that the fiber filaments are organic fiber filaments. 7. A fabric characterized in being opened using the method for opening a fabric according to any of claims 1 through 6. 8. The fabric according to claim 7, characterized in having a cover factor of 96% or higher. 9. A composite material characterized in comprising the fabric according to claim 8 being used as a base material, and the base material being impregnated with a resin, and an interlaminar shear strength of the composite material is greater than or equal to 75 Mpa.