Unicharm Corporation

Yuji Yamashita

Shigetomo Takahashi

Takayuki Matsumoto

Hiroaki Goto

Yasuhiro Koyama

Kazuhiko Hoshika

Hiroyoshi Takada

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

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

The method of production of a web having a tow according to the present invention has a transfer step of transferring a product form web member which is formed by a continuous web member being cut, which product form web member is configured having a plurality of fibrous members formed from tows, to a packaging step which packages the product form web member, the transfer step has a stacking step of stacking a plurality of product form web members to form a stacked member and a variation correction step of suppressing variation of bulk of the stacked member by pressing the stacked member from above the stacked member.

Method of production of web member including tow

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

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

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

Yuji Yamashita