Breathable absorbent article
AssigneeAllegiance Corporation
InventorWalter H. Isaac
Life of this patent
Estimating the term…
Abstract
An absorbent article including a non-woven substrate of one or more layers of meltblown fibers and a first layer of spunbond fibers and a second layer of spunbond fibers. The absorbent article further includes an absorbent core comprising at least one of fibers or a superabsorbent polymer. At least one of the non-woven substrate or the absorbent may be treated with an alcohol repellency (“AR”) treatment.
Claims19
An air-permeable absorbent underpad usable with a low-airloss-bed and configured to prevent liquid from passing from a first side of the absorbent underpad to a second side of the absorbent underpad, the underpad comprising:
- a topsheet layer;
- an absorbent core comprising fibers or a superabsorbent polymer;
- and
- a non-woven substrate backsheet comprising:
- a first layer of spunbond fibers;
- a second layer of spunbond fibers;
- a first layer of meltblown fibers;
- a second layer of meltblown fibers;
- a third layer of meltblown fibers;
- and
- a fourth layer of meltblown fibers, wherein at least one of the layers of the non-woven substrate backsheet is treated with a fluorocarbon, and wherein the underpad is configured to cover at least a portion of the low-airloss-bed with the second side of the underpad facing a surface of the low-airloss-bed, and the substrate backsheet is configured to prevent liquid absorbed by the absorbent core of the underpad from passing to the second side of the underpad and to the surface of the low-airloss-bed, and wherein a hydrostatic pressure of the substrate backsheet is greater than or equal to 60 centimeters and less than or equal to 190 centimeters based on the American Association of Textile Chemists and Colorists (AATCC) Test Method 127-2008 and wherein an air permeability of the substrate backsheet is greater than or equal to 5 cubic feet per minute and less than or equal to 35 cubic feet per minute based on the American Society for Testing and Materials (ASTM D737-18) Standard Test Method for Air Permeability of Textile Fabrics.
An air-permeable absorbent underpad configured to prevent liquid from passing from a first side of the absorbent underpad to a second side of the absorbent underpad, the underpad comprising:
- a topsheet layer;
- an absorbent core comprising fibers or a superabsorbent polymer;
- and
- a non-woven backsheet comprising:
- a first layer of spunbond fibers;
- a second layer of spunbond fibers;
- a first layer of meltblown fibers;
- a second layer of meltblown fibers;
- a third layer of meltblown fibers;
- and
- a fourth layer of meltblown fibers, wherein at least one of the layers of the non-woven backsheet is treated with a fluorocarbon, and the non-woven backsheet is configured to prevent liquid absorbed by the absorbent core of the underpad from passing through to the second side of the underpad, and wherein a hydrostatic pressure of the non-woven backsheet is greater than or equal to 60 centimeters and less than or equal to 190 centimeters based on the American Association of Textile Chemists and Colorists (AATCC) Test Method 127-2008, and wherein an air permeability of the non-woven backsheet is greater than or equal to 5 cubic feet per minute and less than or equal to 35 cubic feet per minute based on the American Society for Testing and Materials (ASTM D737-18) Standard Test Method for Air Permeability of Textile Fabrics.
A system comprising a low-airloss-bed and an absorbent, air-permeable liquid barrier between a patient and the low-airloss-bed, the system further comprising:
- a topsheet layer;
- an absorbent core comprising fibers or a superabsorbent polymer;
- and
- a backsheet comprising:
- a first layer of spunbond fibers;
- a second layer of spunbond fibers;
- a first layer of meltblown fibers;
- a second layer of meltblown fibers;
- a third layer of meltblown fibers;
- and
- a fourth layer of meltblown fibers, wherein at least one of the layers of the backsheet is treated with a fluorocarbon, and wherein the topsheet layer, the absorbent core, and the backsheet are configured to cover at least a portion of the low-airloss-bed and the backsheet is configured to provide a liquid resistant barrier between the absorbent core and the low-airloss-bed while allowing air from the low-airloss-bed to pass through the non-woven substrate, wherein a hydrostatic pressure of the backsheet is greater than or equal to 60 centimeters and less than or equal to 190 centimeters based on the American Association of Textile Chemists and Colorists (AATCC) Test Method 127-2008, and wherein an air permeability of the backsheet is greater than or equal to 5 cubic feet per minute and less than or equal to 35 cubic feet per minute based on the American Society for Testing and Materials (ASTM D737-18) Standard Test Method for Air Permeability of Textile Fabrics.
Dependencies are inferred from the claim text.