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US 8,834,438 B2Granted
Sanitary tampon
AssigneeUni-Charm Corporation
InventorsAkie Kinoshita, Masato Isono, Koichi Yamaki, Hitoshi Watanabe
Life of this patent
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Abstract
The covering member includes an inner side surface being in contact with the absorber and an outer side surface to come into contact with a vaginal wall when in use. The covering member contains a hydrophobic fiber with a low affinity to water and a hydrophilic fiber with a high affinity to water. In the outer side surface, an abundance ratio of the hydrophobic fiber is higher than an abundance ratio of the hydrophilic fiber.
Claims6
A sanitary tampon, comprising:
- an absorber having an absorbent fiber;
- and
- a covering member covering the absorber,
- wherein
- the covering member includes:
- an inner side surface being in contact with the absorber;
- and
- an outer side surface configured to come into contact with a vaginal wall when in use,
- the covering member includes hydrophilic fibers and hydrophobic fibers,
- on the outer side surface, an abundance ratio of the hydrophobic fibers is higher than an abundance ratio of the hydrophilic fibers,
- the inner side surface is made of the hydrophilic fibers,
- a thickness of first portions of the covering member is non-zero and is less than a thickness of second portions of the covering member, and
- the first portions of the covering member include through holes passing through the covering member from the outer side surface to the inner side surface.
10 more elements
Dependencies are inferred from the claim text.