Unicharm Corporation

Hiroaki Goto

Yuji Yamashita

Shigetomo Takahashi

Takayuki Matsumoto

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

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

Hiroaki Goto