| abstract |
A cooling or warming sheet includes a first fibrous layer; a first air-impermeable sheet layer; an aqueous gel layer; and a second air-impermeable sheet layer, wherein the first fibrous layer, the first air-impermeable sheet layer, the aqueous layer, and the second air-impermeable sheet layer are stacked in the order mentioned, wherein the aqueous gel layer is unexposed and has a jelly strength of 200 to 3,000 g when the jelly strength is determined under the following conditions: Measuring apparatus: Compression-type analyzer for determining physical properties; Atmospheric conditions for determination: 20 degrees Celsius, 65% Relative Humidity; Shape to be compressed and area: Circle having a diameter of 30 mm, 7.065 cm 2 ; Quantity to be compressed (Amount of displacement): 2 mm; Compression rate: 1 mm/second; Size of test sample: 20 cm×30 cm×6 mm (width×length×thickness). |