Elastomeric nonwoven laminates and process for producing same
AssigneeThe Procter & Gamble Company
InventorsUwe Schneider, Donald Carroll Roe
Life of this patent
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Abstract
An elastomeric laminate for use in an absorbent article can have a first plurality of elastomeric strands and a second plurality of elastomeric strands bonded to a first substrate. The first plurality of elastomeric strands can be bonded to the first substrate in a first orientation while the second plurality of elastomeric strands is joined to the first substrate in a second orientation. The first and second orientations can be different such that the elastomeric laminate can accommodate tension forces which act on the laminate from different axes. Optionally, a second substrate or a third plurality of elastomeric strands may be added to the elastomeric laminate.
Claims17
A process for producing an elastomeric nonwoven laminate, the process comprising the steps of:
- advancing a first nonwoven in a machine direction, the first nonwoven having a longitudinal axis parallel with the machine direction, and the first nonwoven having a first surface and second surface, wherein the first surface is disposed opposite the second surface;
- stretching a first plurality of elastomeric strands in the machine direction;
- bonding the stretched first plurality of elastomeric strands to the first surface of the first nonwoven along a first orientation, wherein the first orientation is parallel with the machine direction;
- corrugating the first nonwoven by allowing the stretched second plurality of elastomeric strands to relax in the machine direction;
- advancing a second nonwoven in the machine direction, the second nonwoven having a longitudinal axis parallel with the machine direction, the second nonwoven having a first surface and second surface, wherein the first surface is disposed opposite the second surface;
- bonding the second plurality of elastomeric strands in a relaxed state along a second orientation to the first surface of the second nonwoven, wherein the first orientation is different from the second orientation;
- connecting the first surface of the first nonwoven with the first surface of the second nonwoven to form a laminate;
- and
- mechanically activating the second nonwoven of the laminate such that the second nonwoven is extensible along the machine direction.
A process for producing an elastomeric nonwoven laminate, the process comprising the steps of:
- advancing a nonwoven in a machine direction, the nonwoven having a first surface and second surface, wherein the first surface is disposed opposite the second surface;
- bonding a first plurality of elastomeric strands to a first portion of the first surface of the nonwoven along a first orientation, wherein the first orientation is parallel with the machine direction;
- bonding a second plurality of elastomeric strands to a second portion of the first surface of the nonwoven along the first orientation;
- bonding a third plurality of elastomeric strands to the first portion of the nonwoven along a second orientation, wherein the first orientation is different from the second orientation;
- connecting the first portion of the first surface of the nonwoven with the second portion of the first surface of the second nonwoven.
Dependencies are inferred from the claim text.