Water-absorbent pad
It is an object of the present invention to provide a water-absorbent pad that is made of impermeable cloth or sheet, that is capable of absorbing water when needed and that effectively cools and heats a human face, neck, head and the like. A cooling/heating water-absorbent pad, wherein a water-absorbent sheet made of a material containing water-absorbent polymer is inserted in a planate bag made of impermeable cloth having a closed periphery; the impermeable cloth and the water-absorbent sheet are stitched together such that the impermeable cloth and the water-absorbent sheet are divided into a plurality of areas in a planar view; and water is absorbed into the water-absorbent sheet through a channel formed at the stitched portion. In this moment, water is absorbed into the water-absorbent sheet only via holes made by the stitching and by a capillary action of a thread piercing through the water-absorbent sheet. The water-absorbent sheet is preferably made of non-woven cloth containing water-absorbent polymer. The impermeable cloth may have a water-repellent surface.
1. A cooling/heating water-absorbent pad, wherein:
a water-absorbent sheet made of a material containing water-absorbent polymer is inserted in a planate bag made of impermeable cloth or sheet having a closed periphery;
the impermeable cloth or sheet and the water-absorbent sheet are stitched together such that the impermeable cloth or sheet and the water-absorbent sheet are divided into a plurality of areas in a planar view; and
water is absorbed into the water-absorbent sheet only via holes made by the stitching and by a capillarity action of a thread piercing through the water-absorbent sheet.
2. A cooling/heating water-absorbent pad according to claim 1 , wherein when the water-absorbent sheet absorbs water, which makes the divided areas swell, a portion at which the impermeable cloth or sheet and the water-absorbent sheet are stitched together becomes a dent and is hidden.
3. A cooling/heating water-absorbent pad according to claim 2 , wherein the water-absorbent sheet is made of non-woven cloth containing water-absorbent polymer.
4. A cooling/heating water-absorbent pad according to claim 2 , wherein the impermeable cloth or sheet has a water-repellent surface.
5. A cooling/heating water-absorbent pad according to claim 1 , wherein the water-absorbent sheet is made of non-woven cloth containing water-absorbent polymer.
6. A cooling/heating water-absorbent pad according to claim 5 , wherein the impermeable cloth or sheet has a water-repellent surface.
7. A cooling/heating water-absorbent pad according to claim 1 , wherein the impermeable cloth or sheet has a water-repellent surface.