Unicharm Corporation

Yasuhiro Koyama

Takeshi Bando

Yuji Yamashita

Yukiko Iida

Ikuya Saitou

Shigetomo Takahashi

Tatsuya Okamoto

A method of producing an opened fiber bundle is in a space-saving manner. The method of continuously producing an opened fiber bundle for a cleaning member, includes the steps of (a) providing (i) first nip rolls, (ii) second nip rolls, (iii) third nip rolls, and (iv) an air feeder; (a) conveying a fiber bundle using the first nip rolls and the second nip rolls to apply a tensile force to the fiber bundle; (a) conveying the fiber bundle using the second nip rolls and the third nip rolls to relax the fiber bundle, thereby forming a belt-shaped fiber bundle; and (a) blowing air from the air feeder in a direction intersecting with the conveying direction of the first belt-shaped fiber bundle.

Method of producing opened fiber bundle, and method of producing cleaning member, apparatus which opens fiber bundle, and system which produces cleaning member

A method of continuously producing an opened fiber bundle for a cleaning member while conveying a fiber bundle, includes the steps of applying a tensile force to the fiber bundle; relaxing the tensioned fiber bundle to open the fiber bundle; and blowing air in a direction intersecting with the machine direction of the belt-shaped fiber bundle through an air outlet of an air feeder, to further open the belt-shaped fiber bundle and widen the belt-shaped fiber bundle in the width direction. An outer portion in the width direction of the air outlet is disposed downstream in the machine direction, compared with an inner portion in the width direction of the air outlet.

Method of producing opened fiber bundle, method of producing cleaning member, apparatus which opens fiber bundle, and system which produces cleaning member

An object of the present disclosure is to provide a method of producing an opened fiber bundle at high speed and in a space-saving manner. The method is as follows. A method of continuously producing an opened fiber bundle for a cleaning member, comprising the steps of (a) providing (i) first nip rolls, (ii) second nip rolls, (iii) third nip rolls, and (iv) an opening facilitator; (a) conveying a fiber bundle using the first nip rolls and the second nip rolls to apply a tensile force to the fiber bundle, the fiber bundle being pushed onto the upstream portion and the edge of the opening facilitator while conveying; and (a) conveying the fiber bundle using the second nip rolls and the third nip rolls to relax the fiber bundle, thereby forming a belt-shaped fiber bundle.

Disclosed is a sheet package including: a sheet stack formed by folding and stacking rectangular sheets; and a container having a dispensing opening through which the sheets are to be removed. Each sheet is first folded on an X-axis folding line substantially parallel to one side of the rectangular shape, and then folded on a Y-axis folding line substantially perpendicular to the X-axis folding line, thereby to form a folded sheet having two outermost sheet portions appearing on two external surfaces thereof and intermediate sheet portions positioned between the outermost sheet portions. Adjacent folded sheets are combined such that X-axis folding lines of the adjacent folded sheets are positioned at opposite sides of the sheet stack and only an outermost sheet portion of one folded sheet is sandwiched between an outermost sheet portion and an intermediate sheet portion of the other folded sheet.

Sheet package

A box body ( ) having a bottom face portion ( ), side face portions ( ) and corner sealing portions ( ) is formed of a packaging material of a soft sheet, and flange portions ( ) and flange jointing portions ( ) are formed by folding the upper portions of the side face portions ( ). After this box body ( ) is charged with a content, a cover member ( ) is jointed to the flange portions.

Process and apparatus for manufacturing packages

There is disclosed a package including a box body having an opening and a cover member for closing the opening of the box body. The box body is formed of a packaging material of a soft sheet having a monolayer of a resin film or a multi-layer structure having a resin film. The box body includes: a rectangular bottom face portion; four side face portions folded from the four sides of the bottom face portion; corner sealing portions formed by jointing the inner faces of the side face portions at corner portions between the adjoining side face portions; flange portions folded outward of the box body from the upper ends of the side face portions substantially at a right angle thereto and with a predetermined width size; and flange jointing portions jointing the flange portions folded from the side face portions without any clearance between each other at the upper ends of the corner portions between the adjoining side face portions. The cover member is formed of a packaging material of a soft sheet having a monolayer of a resin film or a multi-layer structure having a resin film. The cover member is jointed to the upper surfaces of the flange portions and the flange jointing portions which are formed continuously along the upper ends of the side face portions and the upper ends of the corner portions.

Growing community of inventors

Kanonji, Japan

Yasuhiro Koyama