Patent #: 6,710,222
Inventor(s): Takaaki Shimada, Kenji Nakamura and Seiji Suzuki, Kagawa-ken
Company: Uni-Charm Corporation
1. A disposable undergarment comprising: a liquid-pervious top sheet; a liquid-impervious backsheet; and a liquid-absorbent panel disposed between said topsheet and said backsheet, said liquid-absorbent panel comprising: a body fluid absorbing/holding layer comprising a mixture of fluff pulp, high absorption polymer particles and heat-sealable resin fibers, said body fluid absorbing/holding layer including an upper and a lower surface and a plurality of depressions formed in at least one of the upper and the lower surface; and a nonwoven fabric layer comprising heat-sealable synthetic resin fibers, said nonwoven fabric layer being placed upon at least one of the upper and lower surface of said body fluid absorbing/holding layer which includes said plurality of depressions, and said absorbing/holding layer and said nonwoven fabric layer being integrally covered with and bonded to a water-pervious sheet, said heat-sealable synthetic resin fibers of said absorbing/holding layer being heat-sealed with said nonwoven fabric layer over contacting surfaces of said absorbing/holding layer and said nonwoven fabric layer and further beat-sealed within the plurality of depressions in the adjacent contacting surface of the body fluid absorbing/holding layer so as to substantially fill said plurality of depressions.
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