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US 7,788,758 B2Granted
Water disintegrable cleaning utensil
AssigneeUni-Charm Corporation
InventorsTakayoshi Konishi, Kazuya Okada
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Abstract
A water disintegrable cleaning utensil of the present invention has: a cleaning part, at least part of which is formed by a wet shrinkable resin being hydrophilic and shrinkable at least in one direction when absorbing water; and a holding part which holds the cleaning part. By this structure, the water disintegrable cleaning utensil is very effective at cleaning both in a dry and in a wet condition and is disintegrable in water when being disposed of after being used.
Claims5
A water disintegrable cleaning utensil, comprising:
- a convertible cleaning part at least part of which is formed by wet shrinkable resin, said resin being hydrophilic and shrinkable at least in one direction when absorbing water and said resin converting from fiber or film form to a hydrogen-bonded mass-shaped aggregate when contacted with water;
- and
- a holding part which holds the cleaning part,
- wherein the cleaning part is provided with a large number of fibers made of the wet shrinkable resin formed by a tow,
- wherein the fibers are compressed and physically brought into a close contact with each other;
- and
- wherein the fibers made of the wet shrinkable resin decrease in length by 20% or more when absorbing ion exchange water with a temperature of 20° C. and weigh three times more after absorbing the ion exchange water than an original weight of the fibers.
4 more elements
Dependencies are inferred from the claim text.