Nonabsorbent surge layer having discrete regions of superabsorbent and method for making
First Claim
1. An absorbent article, comprising:
- a liquid-permeable body-side liner;
a surge composite adjacent to the body-side liner, the surge composite comprising;
a non-absorbent wettable fibrous surge material, the surge material having a density in a range from 0.010 to 0.100 grams per cubic centimeter;
a plurality of discrete regions in the surge material; and
a superabsorbent material integrally bonded to the fibers in at least some of the regions; and
a substantially liquid-impermeable outer cover adjacent to the surge material on a side opposite the body-side liner.
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Abstract
This invention is a surge material having permanent storage properties that results in faster intake and greater saturation capacity and reduced fluid flowback. More specifically the invention is a surge material with a superabsorbent material printed on in a pattern of discrete regions. The objective of the invention is obtained by printing, or other known application process, a liquid superabsorbent precursor solution containing a crosslinkable composition onto a surge material and then curing the printed surge material to crosslink the polymers to get a surge material having discrete regions of superabsorbent material in the surge material. This invention is also useful in making an absorbent core of an absorbent article with improved strength, increased absorbency, and decreased shedding of superabsorbent material.
138 Citations
55 Claims
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1. An absorbent article, comprising:
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a liquid-permeable body-side liner; a surge composite adjacent to the body-side liner, the surge composite comprising; a non-absorbent wettable fibrous surge material, the surge material having a density in a range from 0.010 to 0.100 grams per cubic centimeter; a plurality of discrete regions in the surge material; and a superabsorbent material integrally bonded to the fibers in at least some of the regions; and a substantially liquid-impermeable outer cover adjacent to the surge material on a side opposite the body-side liner. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55)
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Specification