Pre-strained laminates and methods for making the same
AssigneeThe Procter & Gamble Company
InventorsTimothy Ian Mullane, Kelyn Anne Arora, Jill Marlene Orr, Donald Carroll Roe, John Brian Strube
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Abstract
A method of forming a three-dimensional laminate for an absorbent article is provided. The method comprises providing a first nonwoven layer, providing a second nonwoven layer, and applying a pre-strain force to the first nonwoven layer or to the second nonwoven layer. The method comprises joining the first nonwoven layer to the second nonwoven layer while the first nonwoven layer or the second nonwoven layer is in a pre-strained condition, and releasing the pre-strain force to form the three-dimensional laminate.
Claims19
A method of forming an outer cover and backsheet three-dimensional laminate for an absorbent article, the method comprising:
- providing a first nonwoven layer configured to be an outer cover in the absorbent article;
- providing a second film layer configured to be a backsheet in the absorbent article;
- wherein only the first nonwoven layer has a plurality of apertures defined therein;
- wherein the second film layer is free of apertures;
- applying a pre-strain force to only one of the first nonwoven layer or the second film layer;
- joining the first nonwoven layer to the second film layer while the first nonwoven layer or the second film layer is in a pre-strained condition;
- releasing the pre-strain force to allow the first nonwoven layer or the second film layer to at least partially recover and form the outer cover and backsheet three-dimensional laminate;
- and
- wherein the laminate is free of elastic strands.
A method of forming an outer cover and backsheet three-dimensional laminate for an absorbent article, the method comprising:
- providing a first nonwoven layer configured to be an outer cover of the absorbent article;
- providing a second film layer configured to be a backsheet of the absorbent article, wherein the second film layer is free of apertures, wherein only the first nonwoven layer has a plurality of apertures defined therein, and wherein at least some of the plurality of apertures are non-homogenous apertures;
- applying a pre-strain force to only one of the first nonwoven layer or the second film layer;
- joining the first nonwoven layer to the second film layer while the first nonwoven layer or the second film layer is in a pre-strained condition;
- and
- releasing the pre-strain force to allow the first nonwoven layer or the second film layer to at least partially recover and form the outer cover and backsheet three-dimensional laminate.
A method of forming an outer cover and backsheet three-dimensional laminate for an absorbent article, the method comprising:
- providing a first nonwoven layer that forms the outer cover;
- providing a second film layer that forms the backsheet, wherein the second film layer is free of apertures, wherein only the first nonwoven layer has a plurality of apertures defined therein, wherein at least some of the plurality of apertures are non-homogenous apertures, and wherein the laminate is free of elastic strands;
- applying a pre-strain force to only one of the first nonwoven layer or the second film layer, wherein the pre-strain force causes the first nonwoven layer or the second film layer to elongate by at least 5%;
- joining the first nonwoven layer to the second film layer while the first nonwoven layer or the second film layer is in a pre-strained condition;
- and
- releasing the pre-strain force to allow the first nonwoven layer or the second film layer to at least partially recover and form the three-dimensional laminate.
Dependencies are inferred from the claim text.