WEB JOINING DEVICE AND WEB JOINING METHOD

Title:

WEB JOINING DEVICE AND WEB JOINING METHOD

Document Type and Number:

WIPO Patent Application WO/2011/013823

Kind Code:

A1

Abstract:

A web joining device (200) joins a pair of waist sections (10) together while webs (61, 62) for an absorptive article (1) are folded on each other in the intersecting direction (CD) along a folding line which is parallel to the machine direction (MD). The web joining device (200) is provided with an ultrasonic horn (211) which joins the pair of waist sections (10) together, an anvil (222) which faces the ultrasonic horn (211) and sandwiches an intermediate web (6)in cooperation with the ultrasonic horn (211), and a crotch holding bar (240) which, when the intermediate web (6) becomes joined by the ultrasonic horn (211) and the anvil (222), holds the intermediate web (6) with the intermediate web (6) stretched in the direction in which a crotch section (20) is separated from the waist sections.

Inventors:

YAMAMOTO HIROKI (JP)

Application Number:

PCT/JP2010/062945

Publication Date:

February 03, 2011

Filing Date:

July 30, 2010

Export Citation:

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Assignee:

UNICHARM CORP (JP)
YAMAMOTO HIROKI (JP)

International Classes:

A61F13/49; A61F13/15; A61F13/496; B65H23/022; B65H23/28

Domestic Patent References:

WO2010024373A1

2010-03-04

Foreign References:

JP2008174328A	2008-07-31
JP2005046246A	2005-02-24
JP2003038566A	2003-02-12
JP2010227545A	2010-10-14
JP2005046246A	2005-02-24
JP2004298413A	2004-10-28
JP2009180201A	2009-08-13

Other References: