Back to results
US 2003/0114814 A1Published application
Zoned absorbency with uniform basis weight core material
OwnerAndrew Thomas Baker, Dennis Chia-Bin Chen +1inventors
InventorsAndrew Thomas Baker, Dennis Chia-Bin Chen, Douglas Raymond Frederisy JR.
Life of this patent
Estimating the term…
Abstract
An absorbent garment having an absorbent core with zones of enhanced absorbency is described. The zones of enhanced absorbency are formed by selective transverse folding of the absorbent core material. Customization of positioning and configuration of the folds facilitates achieving a high distribution index value and accommodating specialized requirements of specific user groups such as male and female users for example.
Claims42
An absorbent article comprising:
- a liquid permeable top sheet;
- a liquid impermeable back sheet associated with said top sheet;
- and
- an absorbent core disposed between the top sheet and the back sheet, the absorbent core comprising an absorbent laminate, the absorbent laminate comprising:
- an upper layer near the top sheet;
- a lower layer near the back sheet;
- and
- an absorbent layer positioned between the upper and lower layers,
- said upper and lower layer comprise a material selected from the group comprise a material selected from the group consisting essentially of tissue, air laid fluff pulp and synthetic non-woven;
- said absorbent layer comprising about 10-90% superabsorbent polymer (SAP) by weight;
- and wherein said absorbent laminate has;
- a first end;
- a second end;
- at least one transverse fold;
- and a layer region of two or more layers positioned between said first end and said second end and wherein said layer region has a plurality of layer edges at least one of said plurality of layer edges coinciding with said at least one transverse fold and at least one of said plurality of layer edges positioned at a distance intermediate said first end and said second end.
12 more elements
An absorbent core for absorbent garments comprising:
- a roll good core portion, said roll good core portion having:
- a first end;
- a second end;
- at least one transverse fold;
- and
- a layer region of two or more layers positioned between said first end and said second end, and wherein said layers have a plurality of layer edges, at least one of said plurality of layer edges coinciding with said at least one transverse fold and at least one of said plurality of layer edges positioned at a position intermediate said first end and said second end.
3 more elements
A method of manufacturing absorbent core for absorbent garments comprising:
- providing a roll good core portion, having a first end and a second end to a folding station including a rotating drum having grouping portions, the first end being the leading end and the second end being the trailing end;
- drawing the leading end into a chamber disposed adjacent the folding station;
- engaging the roll good core portion with the grasping projections of the rotating drum;
- advancing the trailing portions of the roll good core portion along the rotating drum and past the chamber;
- creating a fold in the roll good core portion as the trailing portions of the roll good core portion advanced past the chamber;
- releasing the leading end from the chamber prior to the trailing end advancing past the chamber on the rotating drum;
- and
- releasing the roll good core portion from the grouping projections.
5 more elements
A method of making an absorbent garment comprising:
- supplying a top sheet material;
- supplying a back sheet material;
- preparing an absorbent core;
- and
- disposing the absorbent core between the top sheet material and the back sheet material,
- whereby the absorbent core is prepared by
- providing a roll good core portion, having a first end and a second end to a folding station including a rotating drum, the first end being the leading end and the second end being the trailing end;
- drawing the leading end into a chamber disposed adjacent the folding station;
- advancing the trailing portions of the roll good core portion along the rotating drum and past the chamber;
- creating a fold in the roll good core portion as the trailing portions of the roll good core portion advanced past the chamber;
- and
- releasing the leading end from the chamber prior to the trailing end advancing past the chamber on the rotating drum.
9 more elements
A method of manufacturing absorbent core for absorbent garments comprising:
- providing a roll good core web having a first web portion, a layer segment and a second web portion;
- advancing the roll good core web to a folding station having a first moving belt, a second moving belt and a pressor wherein the first web portion of the roll good core is drawn along the first moving belt and the layer segment portion is drawn along the second moving belt;
- creating at least one loop in the roll good core web as the roll good core web is drawn along by the first and the second moving belts;
- pressing at least one loop into at least one fold with the pressor;
- feeding a second web portion of roll good core web along one of the first and second moving belts;
- and
- cutting a length of roll good core web wherein the length of roll good core web comprises at least one fold and a portion of at least one of the first and second web portions.
4 more elements
A method of making an absorbent garment comprising:
- supplying a top sheet material;
- supplying a back sheet material;
- preparing an absorbent core;
- and
- disposing the absorbent core between the top sheet material and the back sheet material,
- whereby the absorbent core is prepared by
- providing a roll good core web having a first web portion, a layer segment and a second web portion;
- advancing the roll good core web to a folding station having a first moving belt, a second moving belt and a pressor wherein the first web portion of the roll good core is drawn along the first moving belt and the layer segment portion is drawn along the second moving belt;
- creating at least one loop in the roll good core web as the roll good core web is drawn along by the first and the second moving belts;
- pressing at least one loop into at least one fold with the pressor;
- feeding a second web portion of roll good core web along one of the first and second moving belts;
- and
- cutting a length of roll good core web wherein the length of roll good core web comprising at least one fold and a portion of at least one of the first and second web portions.
10 more elements
Dependencies are inferred from the claim text.