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US 8,410,005 B2Granted
Stacks of pre-moistened wipes with unique fluid retention characteristics
AssigneeThe Procter & Gamble Company
InventorsJonathan Paul Brennan, Holly Ann Balasubramanian
Life of this patent
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Abstract
Stacks of pre-moistened wipes wherein the wipes comprise a composite of at least two layers of fibrous nonwoven webs, which in turn comprise fibers with an average fiber denier from about 2.5 to about 6.0. The stacks of pre-moistened wipes are from about 50 to about 300 millimeters in height and have a saturation gradient index from about 1.0 to about 1.5.
Claims23
A stack of pre-moistened wipes, said stack comprising a height from about 50 millimeters to about 300 millimeters and a saturation gradient index from about 1.0 to about 1.5, wherein said wipes comprise:
- (a) a composite of at least a first layer and third layer of fibrous nonwoven webs, said first layer and said third layer comprising synthetic fibers with an average fiber denier from about 2.5 to about 6.0, said composite further comprises a second layer comprising pulp, wherein said first layer is joined to a face of said second layer in a face to face relationship by bonding between the layers and said third layer is joined to a second face of said second layer in a face to face relationship by bonding between the layers, wherein said bonding comprises intertwining of the fibers between the layers;
- (b) a saturation loading from about 1.5 to about 6.0 grams of liquid composition per gram of wipe, wherein said liquid composition has a surface tension from about 20 to about 35 dynes per centimeter;
- (c) a dynamic absorption time from about 0.01 to about 0.4 seconds;
- and
- (d) a first side and a second side opposed thereto, wherein the wipes are interleaved with one another such that at least a portion of the first side of one wipe overlaps at least a portion of the second side of another wipe.
2 more elements
A stack of pre-moistened wipes, said stack comprising a height from about 50 to about 300 millimeters and a saturation gradient index from about 1.0 to about 1.5, wherein:
- (a) said wipes having a longitudinal axis and a transverse axis orthogonal thereto and comprising a composite of at least two layers of fibrous nonwoven webs wherein said composite comprises a strainable network formed from a plurality of first regions in the form of a reticulated structure substantially in a plane of said composite, a plurality of second non-planar regions comprising out-of-said-plane protruding elements in the form of rib-like ridges and furrows, and transition regions located at the interface between the first regions and the second regions, the rib-like ridges and furrows of the second regions having a major rib axis substantially parallel to the longitudinal axis of the wipe and a minor rib axis substantially parallel to the transverse axis of the wipe wherein said wipes further comprise:
- i. synthetic fibers with an average fiber denier from about 1.0 to about 6.0;
- and
- ii. saturation loading from about 1.5 to about 6.0 grams of liquid composition per gram of wipe, wherein said liquid composition has a surface tension from about 20 to about 35 dynes per centimeter.
1 more element
A stack of pre-moistened wipes, said stack comprising:
- (a) a height from about 50 millimeters to about 300 millimeters;
- (b) a saturation gradient index from about 1.0 to about 1.5;
- and
- (c) a saturation loading from about 1.5 to about 6.0 grams of liquid composition per gram of wipe, wherein said liquid composition has a surface tension from about 20 to about 35 dynes per centimeter, wherein said wipes comprise:
- i. a composite of at least a first layer and a third layer of spunbond nonwoven webs, said first layer and said third layer comprising synthetic multicomponent fibers with an average fiber denier from about 1.0 to about 6.0 and said composite further comprises a second layer comprising pulp, wherein said first layer is joined to a face of said second layer in a face to face relationship by bonding between the layers and said third layer is joined to a second face of said second layer in a face to face relationship by bonding between the layers, wherein said bonding comprises intertwining of the fibers between the layers achieved via hydroentanglement;
- ii. a saturation loading from about 1.5 to about 6.0 grams of liquid composition per gram of wipe, wherein said liquid composition has a surface tension from about 20 to about 35 dynes per centimeter;
- iii. a dynamic absorption time from about 0.01 to about 0.4 seconds;
- and
- iv. a first side and a second side, wherein the wipes are interleaved with one another such that at least a portion of the first side of one wipe overlaps at least a portion of the second side of another wipe.
6 more elements
Dependencies are inferred from the claim text.