Provided is a method comprises: continuously forming an elongated, glass film having marginal portions from molten glass into a given shape having two marginal portions, in width-directional opposite edge regions thereof, wherein the glass film having marginal portions has the marginal portions, and an effective portion formed in a width-directional central region of the glass film having marginal portions; annealing the glass film having marginal portions; continuously forming resin tapes on the glass film having marginal portions at positions adjacent to and away by a given distance from the respective marginal portions, to extend in a length direction of the glass film having marginal portions; and continuously removing each of the marginal portions from the glass film having marginal portions, along a position between the marginal portion and a corresponding one of the resin tapes, or at a given width-directional position within the corresponding resin tape.

Provided is a method comprises: continuously forming an elongated, glass film having marginal portions from molten glass into a given shape having two marginal portions, in width-directional opposite edge regions thereof, wherein the glass film having marginal portions has the marginal portions, and an effective portion formed in a width-directional central region of the glass film having marginal portions; annealing the glass film having marginal portions; continuously forming resin tapes on the glass film having marginal portions at positions adjacent to and away by a given distance from the respective marginal portions, to extend in a length direction of the glass film having marginal portions; and continuously removing each of the marginal portions from the glass film having marginal portions, along a position between the marginal portion and a corresponding one of the resin tapes, or at a given width-directional position within the corresponding resin tape.

The present disclosure discloses arrays (retail store shelves and digital retail) of disposable, fibrous, rolled products comprising Traditional Diameter Rolls and Packages and Larger Diameter Rolls and Packages.

The present disclosure discloses arrays (retail store shelves and digital retail) of disposable, fibrous, rolled products comprising Traditional Diameter Rolls and Packages and Larger Diameter Rolls and Packages.

A package for an optical fiber includes: a base portion; a plurality of protruding portions that protrude from a flat surface of the base portion, are arranged along an outer periphery of the base portion, and are configured so that an optical fiber including a connector mounted to at least one end thereof is wound along a part of an outer periphery of each of the protruding portions; a mounting portion to which the connector of the optical fiber is to be mounted; and a plurality of fall-off preventing portions that are formed integrally with the base portion and capable of restricting a position of the optical fiber to be wound over the plurality of protruding portions.

An expansion device includes an unexpended slit sheet roll that is wound on a paper core that is wider than the slit sheet paper. The paper core is placed into a yoke that holds the paper in position on each side of the unexpended slit sheet material. An adjustable downward pressure is exerted on the paper core and the paper core exerts pressure on the yoke. As the paper is pulled, this downward pressure creates the friction required to enable the unexpended slit sheet to be unwind and fed while simultaneously expanding. A blank sheet is formed into a box that stabilizes slit paper sheet wound around a core member.

An expansion device includes an unexpended slit sheet roll that is wound on a paper core that is wider than the slit sheet paper. The paper core is placed into a yoke that holds the paper in position on each side of the unexpended slit sheet material. An adjustable downward pressure is exerted on the paper core and the paper core exerts pressure on the yoke. As the paper is pulled, this downward pressure creates the friction required to enable the unexpended slit sheet to be unwind and fed while simultaneously expanding. A blank sheet is formed into a box that stabilizes slit paper sheet wound around a core member.

A packaging box with improved strength in the vertical direction in a packing body housing a rolled product is provided. The packaging box comprises a lower case for forming a space for housing a rolled product, and an upper cover for sealing the space. The upper cover comprises a rectangular top board portion and a rectangular parallelepiped upper cover extending downward in the vertical Z direction from respective sides of the top board portion so as to cover almost all of the lower case. The upper cover is configured by a pair of narrow-width sideboard portions facing to each other in approximately parallel and a pair of wide-width sideboard portions facing to each other in approximately parallel, all formed to be integrated by a margin for sticking, and is provided to an end portion of at least one sideboard portion and superimposed on an inner surface on the space side of another sideboard portion to be connected. At a lower side of at least one sideboard portion, a cutout handle part is formed for lifting in the Z direction when unpacking. By holding the handle part and lifting, the packing body opens. The superimposed and fixed margin for sticking does not exist on an inner surface of a sideboard portion, where the handle part is formed.

A packaging box with improved strength in the vertical direction in a packing body housing a rolled product is provided. The packaging box comprises a lower case for forming a space for housing a rolled product, and an upper cover for sealing the space. The upper cover comprises a rectangular top board portion and a rectangular parallelepiped upper cover extending downward in the vertical Z direction from respective sides of the top board portion so as to cover almost all of the lower case. The upper cover is configured by a pair of narrow-width sideboard portions facing to each other in approximately parallel and a pair of wide-width sideboard portions facing to each other in approximately parallel, all formed to be integrated by a margin for sticking, and is provided to an end portion of at least one sideboard portion and superimposed on an inner surface on the space side of another sideboard portion to be connected. At a lower side of at least one sideboard portion, a cutout handle part is formed for lifting in the Z direction when unpacking. By holding the handle part and lifting, the packing body opens. The superimposed and fixed margin for sticking does not exist on an inner surface of a sideboard portion, where the handle part is formed.

A packaging box capable of improving unpacking performance in a packing body housing a rolled product is provided. The packaging box comprises a lower case for forming a space for housing a rolled product, which is a long material rolled around an axis in a longitudinal X direction, and an upper cover for sealing the space in the lower case. The upper cover comprises a rectangular top board portion for sealing the space in the lower case and a plurality of sideboard portions extending downward in the vertical Z direction from respective sides of the top board portion, and the plurality of sideboard portions cover approximately all of outer surfaces of the lower box body. At least one of the sideboard portions has a pair of perforations extending upward from a lower end thereof toward the top board portion. By cutting the perforations, a sideboard piece surrounded by the perforations and a lower side of the sideboard portion can be detached.