Abstract: A laminate film manufacturing method is capable of preventing thickness unevenness of a cured layer and preventing wrinkling of the entire laminate film. A laminate film is manufactured by applying a coating solution including an active radiation curable resin to a surface of a first film that is continuously transported in an application part to form a coated film in a lamination part, laminating a second film that is continuously transported on the coated film to sandwich the coated film between the first film and the second film, and in a state in which the coated film is sandwiched between the first film and the second film, winding the first film around a backup roller and irradiating the coated film with infrared rays from an ultraviolet irradiation device while continuously transporting the first film to cure the coated film in a curing part so as to form a cured layer.

Abstract: A laminate film manufacturing method is capable of preventing thickness unevenness of a cured layer and preventing wrinkling of the entire laminate film. A laminate film is manufactured by applying a coating solution including an active radiation curable resin to a surface of a first film that is continuously transported in an application part to form a coated film in a lamination part, laminating a second film that is continuously transported on the coated film to sandwich the coated film between the first film and the second film, and in a state in which the coated film is sandwiched between the first film and the second film, winding the first film around a backup roller and irradiating the coated film with infrared rays from an ultraviolet irradiation device while continuously transporting the first film to cure the coated film in a curing part so as to form a cured layer.

Abstract: A tape winder includes: a hub, around which a tape is wound overlappingly and which forms a tape roll on the hub; a first guide roller, defining the position of feeding of the tape into the tape roll being formed on the hub while pressing an outer peripheral surface of the tape roll; and a moving mechanism, moving the first guide roller away from the rotation axis of the hub as the tape roll increases in diameter. A rotation axis of the first guide roller is positioned along a normal to a reference surface and the rotation axis of the hub intersects the rotation axis of the first guide roller at an angle ?. The tape is processed to provide winding curl to the tape through winding the tape on a tapered hub with inclination and a heat treatment to fix the winding curl.

Abstract: A method for slitting a continuously traveling laterally-stretched transparent polymer film, comprising the steps of: heating the transparent polymer film by infrared irradiation; and slitting the transparent polymer film with a slitting blade.

Abstract: A laminated film obtained by cutting a laminate, the laminate including: a long support, and a hard thin film which is harder and thinner than the support and is provided on the support. The ratio of sag length B to sag amount A, B/A, on a surface on which the hard thin film is provided, when a cut end face is viewed in a direction perpendicular to the end face, is 5 or more.

Abstract: A magnetic recording medium includes a support and a magnetic layer containing a ferromagnetic powder and a binder, and has a cut surface along an edge of the magnetic recording medium, wherein the cut surface of the magnetic recording medium has a shear region whose length in a thickness direction of the magnetic recording medium is at least 50% of the thickness of the magnetic recording medium.

Abstract: Disclosed are a magnetic tape capable of being wound regularly, and an apparatus and a method by which the tape is wound regularly. The tape-shaped recording medium, which includes a tape-shaped support body and a recording layer being formed on a surface of the support body, is curved laterally over its whole length and said tape-shaped recording medium being curved laterally over its whole length and having a surface arching across a whole width of the medium. Furthermore, it is preferable that a curved amount of the medium ranges from 0.5 mm/m to 4.0 mm/m and an arched amount of the medium ranges from 0.3 mm to 2.0 mm.

Abstract: A tape winder includes: a hub, around which a tape is wound overlappingly and which forms a tape roll on the hub; a first guide roller, defining the position of feeding of the tape into the tape roll being formed on the hub while pressing an outer peripheral surface of the tape roll; and a moving mechanism, moving the first guide roller away from the rotation axis of the hub as the tape roll increases in diameter. A rotation axis of the first guide roller is positioned along a normal to a reference surface and the rotation axis of the hub intersects the rotation axis of the first guide roller at an angle ?. The tape is processed to provide winding curl to the tape through winding the tape on a tapered hub with inclination and a heat treatment to fix the winding curl.

Abstract: A tape winder includes: a hub, around which a tape is wound overlappingly and which forms a tape roll on the hub; a first guide roller, defining the position of feeding of the tape into the tape roll being formed on the hub while pressing an outer peripheral surface of the tape roll; and a moving mechanism, moving the first guide roller away from the rotation axis of the hub as the tape roll increases in diameter. A rotation axis of the first guide roller is positioned along a normal to a reference surface and the rotation axis of the hub intersects the rotation axis of the first guide roller at an angle ?. The tape is processed to provide winding curl to the tape through winding the tape on a tapered hub with inclination and a heat treatment to fix the winding curl.

Abstract: A manufacturing method of a tape for manufacturing a curved tape curving in the width direction along the longitudinal direction of the tape, wherein, in a cutting process which cuts an original tape with a wide width into a plurality of tapes with a predetermined width by continuously passing the original tape between a rotary blade and a rotary bed knife having a receiving portion for receiving the rotary blade, an edge which has a shorter edge length between both edges in the width direction of the tape is to become a cut side by being pushed into the receiving portion of the rotary bed knife.

Abstract: A tape winder includes: a hub, around which a tape is wound overlappingly and which forms a tape roll on the hub; a first guide roller, defining the position of feeding of the tape into the tape roll being formed on the hub while pressing an outer peripheral surface of the tape roll; and a moving mechanism, moving the first guide roller away from the rotation axis of the hub as the tape roll increases in diameter. A rotation axis of the first guide roller is positioned along a normal to a reference surface and the rotation axis of the hub intersects the rotation axis of the first guide roller at an angle ?. The tape is processed to provide winding curl to the tape through winding the tape on a tapered hub with inclination and a heat treatment to fix the winding curl.

Abstract: The present invention relates to a magnetic tape, a magnetic tape manufacturing method, and a magnetic tape winding apparatus; and the magnetic tape manufacturing method is the method for the magnetic tape curved in a width direction, and comprises a determination process of determining a curvature polarity possessed in advance by the magnetic tape, and a winding process of winding the magnetic tape on a first taper hub comprising a taper winding face corresponding to the curvature polarity of the magnetic tape.

Abstract: Disclosed are a magnetic tape capable of being wound regularly, and an apparatus and a method by which the tape is wound regularly. The tape-shaped recording medium, which includes a tape-shaped support body and a recording layer being formed on a surface of the support body, is curved laterally over its whole length and said tape-shaped recording medium being curved laterally over its whole length and having a surface arching across a whole width of the medium. Furthermore, it is preferable that a curved amount of the medium ranges from 0.5 mm/m to 4.0 mm/m and an arched amount of the medium ranges from 0.3 mm to 2.0 mm.