Unicharm Corporation

Shigetomo Takahashi

Yuji Yamashita

Takayuki Matsumoto

Hiroaki Goto

Kazuhiko Hoshika

Hisaoki Nobukuni

Yasuhiro Koyama

Kunihiko Saito

The present invention is a method for manufacturing cleaning members obtained by cutting multi-layer webs formed by: spreading fiber bundles, the lengthwise directions of which are parallel to the direction in which said are conveyed; and layering together at least the spread and non-woven fabric strips. Said method includes a step in which, before spreading, two or more are joined together, forming one or more join sections. Said joins are performed by joining the back end (with respect to the conveyance direction) of one to the front end (with respect to the conveyance direction) of the next fiber bundle.

Method and system for manufacturing cleaning member

A method for continuously producing a cleaning member obtained from a multilayer web that includes at least a fiber bundle with hollow fibers, and non-woven fabric strips includes at least: a step for preparing a guide member provided with a pair of width-adjusting member, and having a predetermined interval; a step for conveying a fiber bundle strip, such as the fiber bundle with hollow fibers, between the pair of width-adjusting members of the guide member, and adjusting the width of the fiber bundle strip so as to match the aforementioned interval; a step for forming the multilayer web by overlaying the strip-like fiber bundle, the width of which has been adjusted, on the non-woven fabric strips; and a step for joining the components of the multilayer web.

Method for producing cleaning member, and system for producing cleaning member

A method of continuously producing a cleaning member obtained from a multilayer web that includes at least a fiber bundle and a non-woven fabric, includes the following steps: preparing a guide member provided with a pair of width-adjusting members having a predetermined interval therebetween; conveying a fiber bundle through the pair of width-adjusting members of the guide member to adjust the width of the fiber bundle strip so as to match the aforementioned interval; forming the multilayer web by overlaying the fiber bundle, the width of which has been adjusted, on the non-woven fabric; and joining the fiber bundle and non-woven fabric.

A method of manufacturing a cleaning member includes a fiber bundle conveying step conveying a fiber bundle to a merging section, a nonwoven fabric conveying step conveying the nonwoven fabric strips to the merging section; a multilayer web forming step forming a multilayer web by overlaying the fiber bundle on the nonwoven fiber strips at the merging part; and a joining step joining the fiber bundle and the nonwoven fabric strips to each other in the multilayer web. In the fiber bundle conveying step, the fiber bundle is conveyed at a tension at which there is no width shrinkage in the fiber bundle, and in the multilayer web forming step, the multilayer web is formed by overlaying the fiber bundle on the nonwoven strips while applying a tension that does not cause width shrinkage in the fiber bundle.

Manufacturing method and manufacturing system for cleaning member

In a method for manufacturing a cleaning member comprising opened fiber bundle, in order to correct twisting of fiber bundle in the path for feeding the fiber bundle from a storage container to a driving roller to thereby stabilize manufacturing process, and in order to pre-open the fiber bundle in the path from a driving roller to the opening step to thereby speed-up the opening step, fiber bundle drawn out continuously from a storage container in a first direction is wound onto a non-rotational bar, and after being fed in a second direction, is fed to a first driving roller, and the fiber bundle fed from the first driving roller in a third direction is wound onto a second non-rotational bar, and after being fed in a fourth direction, is fed to a second driving roller and to the following opening step.

Method and apparatus for manufacturing 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.

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

The invention relates to a cutting device which cuts a web member, which includes fiber bundles which extend continuously in a machine direction MD and which is intermittently conveyed in said machine direction, in a crossing direction CD which crosses the machine direction. The cutting device has a plurality of disk shaped rotary blades which rotate about rotary shafts which extend along the machine direction while moving in said cross direction so as to thereby cut said web member when the web member is at a stop. The plurality of rotary blades are arranged so as to be substantially aligned in the crossing direction and includes a rotary blade which rotates in one direction and a rotary blade which rotates in the opposite direction.

Cutting device and method of production of cleaning member using cutting device

Stoppers for preventing lifting of the worked sheet are comprised of two stoppers near the press and above the worked sheet at a predetermined space from the worked sheet, one of the stoppers arranged at an upstream side from the press and the other of the stoppers arranged at a downstream side from the press, whereby when the press seals the worked sheet and then moves upward, the preventive stoppers prevent the worked sheet from being lifted up.

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Kanonji, Japan

Shigetomo Takahashi