Sanitary napkin
AssigneesDaisel Kagaku Kogyo Kabushikikaisha, Fuji Eizai Kabushikikaisha
InventorsAkira Usami, Motoharu Kotani, Tomoko Goda
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Abstract
A sanitary napkin comprising a filler including a water-permeable layer of hydrophobic fibers for passing the body fluid therethrough and an absorbing layer underlying the layer for absorbing the fluid, and a water-permeable covering which covers the filler. The napkin is used with the water-permeable layer in contact with the human body. The water permeable layer has outstanding water permeability and functions to prevent reverse flow, permitting the absorbing layer to readily absorb the body fluid while preventing the fluid from returning toward the body. The napkin therefore has an agreeable feel at all times during use without feeling wet or sticky. The cushioning property of the water-permeable layer also gives a comfortable feel.
Claims16
A sanitary napkin comprising an elongated filler which in turn comprises a water-permeable layer formed of hydrophobic fibers and an absorbing layer underlying said water-permeable layer, and a water-permeable covering which covers said filler, said water-permeable layer of hydrophobic fiber comprising rows of hydrophobic fibers arranged in strip-like bundles of elongated fibers disposed generally parallel to the length of said sanitary napkin, whereby the fluid diffuses along the fibers a greater amount in a longitudinal direction as compared to a transverse direction such that the fluid diffuses along the napkin by the capillarity of the fibers to spread in a generally elliptical form.
A sanitary napkin comprising an elongated filler which in turn comprises a water-permeable layer formed of hydrophobic fibers and an absorbing layer underlying said water-permeable layer, and a water-permeable covering which covers said filler, said water-permeable layer of hydrophobic fibers comprising short hydrophobic fibers arranged lengthwise to obtain assemblies resembling elongated fibers in which said assemblies are disposed parallel to the length of the sanitary napkin, whereby the fluid diffuses along the fibers a greater amount in a longitudinal direction as compared to a transverse direction such that the fluid diffuses along the napkin by the capillarity of the fibers to spread in a generally elliptical form.
Dependencies are inferred from the claim text.