US 8,474,502 B2Granted

Elastic composite for a disposable absorbent garment, and a system and process for making the elastic composite and a garment having the elastic composite

AssigneeDSG Technology Holdings Ltd.

InventorsKuo-Shu Edward Chang, Patrick King Yu Tsang, Anne Smid, Andrew C. Wright

Life of this patent

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Abstract

A method is provided for making an elastic composite for incorporation into a disposable absorbent garment. An elastic element applicator is provided that is configured to move a section of a continuous strand of elastic element generally about a plane. A first web of material is conveyed in a first web moving direction such that the first web intersects the plane. Then, the applicator is operated to move the elastic element about the plane, thereby applying the section of elastic element onto the first web along a direction generally transverse to the web moving direction and such that the first web draws the continuous elastic strand from the elastic element applicator as the first web is conveyed away from the plane. The elastic element applicator may be in the form of a spin cylinder or bracket that is operated to spin the elastic element about the moving first web, thereby applying the elastic element on the first web.

Claims12

Dependent claims

An apparatus for delivering a web of an elastic composite for incorporation into a disposable garment, said apparatus comprising:

a first conveyor including a platform movable along a looped path to convey a first sheet of material supported thereon;
and
a spin head configured to receive a continuous feed of an elastic strand and rotatable about a spin axis to spin an end section of a continuous strand supported thereon about a spin plane intersecting the conveyor and periodically apply a section of the elastic strand transversely onto a sheet conveyed on the platform;
a feed source of continuous elastic strand spaced apart from and operatively associated with the spin head to feed a continuous elastic strand to the spin head, the feed source being supported independently of the spin head;
and
a downstream conveyor positioned downstream of the spin plane to apply a second sheet of material on a sheet passed on the platform of the first conveyor through the spin plane with elastic elements applied thereon to form a web of elastic composite including two sheets of material and a plurality of elastics sandwiched between the two sheets.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application: 13/427,412Filed 22 Mar 2012 · continuation
Priority: 24 Dec 2003
Published: US 2012/0238988 A120 Sep 2012
Granted: 2 Jul 2013
Term ends: Not estimatedThe source records don’t support an estimate.

Classification14 codes

A61F 13/15699
Apparatus or processes for manufacturing: forming webs by bringing together several webs, e.g. by laminating or folding several webs, with or…
A61F 13/15593
Of babies' napkins, e.g. diapers: having elastic ribbons fixed thereto; Devices for applying the ribbons
A61F 13/49019
With elastic means: the elastic means being placed longitudinally, transversely or diagonally over the article
A61F 13/4902
With elastic means: characterised by the elastic material

Family

Application60/532,480Us provisional application · filed 24 Dec 2003
Application11/021,424Parent of this continuation · filed 23 Dec 2004
Application11/982,349Parent of this division · filed 31 Oct 2007
Application12/799,917Parent of this continuation · filed 4 May 2010
US 2012/0238988 A1Pre-grant publication · published 20 Sep 2012
US 8,168,024 B2Parent of this continuation
US 7,740,727 B2Parent of this division
Application12/799,917Parent of this division
US 7,361,246 B2Parent of this continuation
Application11/982,349Parent of this continuation
US 2005/0139311 A1Published application
US 2008/0176026 A1Published application
US 2011/0314787 A1Published application
US 8,474,502 B2This patent

From the US filing history. Foreign family members aren’t listed.