Wet-resilient webs and disposable articles made therewith
AssigneeKimberly-Clark Worldwide, Inc.
InventorsFung-jou Chen, Mark Alan Burazin, Michael Alan Hermans, David Henry Hollenberg, Richard Joseph Kamps, Bernhardt Edward Kressner, Jeffrey Dean Lindsay
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Abstract
Paper sheets useful for tissues, paper towels, napkins, disposable absorbent products and the like can be made to exhibit a high degree of wet resiliency. This property is achieved by using a combination of high yield pulp fibers (such as bleached chemithermomechanical pulp fibers) and a wet strength agent in an uncreped throughdrying process. The resulting product, when wetted, can spring back after being crumpled in one's hand.
Claims69
A three-dimensional, throughdried uncreped cellulosic paper web comprising about 20 dry weight percent or more high yield pulp fibers and a wet strength agent, said paper web having a density of about 0.3 gram per cubic centimeter or less, a wet:dry ratio of about 0.10 or greater, an Overall Surface Depth of about 0.2 millimeter or greater, and a Wet Compressed Bulk of about 7 cubic centimeters or greater per gram.
An absorbent article comprising a backsheet layer, a liquid permeable topsheet layer connected in a superposed relation with said backsheet layer, and at least one through-air-dried uncreped tissue sheet sandwiched between said topsheet layer and backsheet layer, said through-air-dried sheet comprising at least about 20 dry weight percent high yield pulp fibers to which a wet strength agent has been added and having a density of about 0.3 grams per cubic centimeter or less, an Overall Surface Depth of about 0.3 millimeters or greater, and a Wet Compressed Bulk of about 7 cubic centimeters or greater per gram.
A three-dimensional, throughdried cellulosic uncreped paper web comprising about 20 dry weight percent or more high yield pulp fibers having a Water Retention Value of about 0.7 or greater and a wet strength agent, said paper web having a density of about 0.3 gram per cubic centimeter or less, a wet:dry ratio of about 0.10 or greater, an Overall Surface Depth of about 0.2 millimeter or greater, and a Wet Compressed Bulk of about 7 cubic centimeters or greater per gram.
An absorbent article comprising a backsheet layer, a liquid permeable topsheet layer connected in a superposed relation with said backsheet layer, and at least one uncreped through-air-dried tissue sheet sandwiched between said topsheet layer and backsheet layer, said through-air-dried sheet comprising at least about 20 dry weight percent high yield pulp fibers having a Water Retention Value of about 0.7 or greater to which a wet strength agent has been added and having a density of about 0.3 grams per cubic centimeter or less, an Overall Surface Depth of about 0.3 millimeters or greater, a wet:dry ratio of about 0.10 or greater and a Wet Compressed Bulk of about 7 cubic centimeters or greater per gram.
A three-dimensional, throughdried uncreped cellulosic paper web comprising about 20 dry weight percent or more high yield pulp fibers and a wet strength agent, said paper web having a density of about 0.3 gram per cubic centimeter or less, a wet:dry ratio of about 0.10 or greater, an Overall Surface Depth of about 0.2 millimeter or greater, and a Wet Compressed Bulk of about 7 cubic centimeters or greater per gram.
An absorbent article comprising a backsheet layer, a liquid permeable topsheet layer connected in a superposed relation with said backsheet layer, and at least one through-air-dried uncreped tissue sheet sandwiched between said topsheet layer and backsheet layer, said through-air-dried sheet comprising at least about 20 dry weight percent high yield pulp fibers to which a wet strength agent has been added and having a density of about 0.3 grams per cubic centimeter or less, an Overall Surface Depth of about 0.3 millimeters or greater, and a Wet Compressed Bulk of about 0.7 cubic centimeters or greater per gram.
A three-dimensional, throughdried cellulosic uncreped paper web comprising about 20 dry weight percent or more high yield pulp fibers having a Water Retention Value of about 0.7 or greater and a wet strength agent, said paper web having a density of about 0.3 gram per cubic centimeter or less, a wet:dry ratio of about 0.10 or greater, an Overall Surface Depth of about 0.2 millimeter or greater, and a Wet Compressed Bulk of about 0.7 cubic centimeters or greater per gram.
An absorbent article comprising a backsheet layer, a liquid permeable topsheet layer connected in a superposed relation with said backsheet layer, and at least one uncreped through-air-dried tissue sheet sandwiched between said topsheet layer and backsheet layer, said through-air-dried sheet comprising at least about 20 dry weight percent high yield pulp fibers having a Water Retention Value of about 0.7 or greater to which a wet strength agent has been added and having a density of about 0.3 grams per cubic centimeter or less, an Overall Surface Depth of about 0.3 millimeters or greater, a wet:dry ratio of about 0.10 or greater and a Wet Compressed Bulk of about 7 cubic centimeters or greater per gram.
Dependencies are inferred from the claim text.