| 摘要 |
PURPOSE:To obtain a cold-accumulating material suitably usable as a thin sheetlike product by filling a mixed paste of PVA and a highly water-absorptive resin in a bag wherein the face on which a non-woven fabric as a package base is furnished is set to serve as an inner face, molding it and performing a freezing treatment thereof. CONSTITUTION:A non-woven fabric 4 is set on the inner face of a package base 1 on the outer face of which a thermoplastic resin layer 3 is provided and when a mixed paste of PVA and a highly water-absorptive resin is filled in the package base 1, the non-woven fabric 4 is impregnated with a part of the mixed paste. Under this condition, a gelation treatment is conducted on the mixed paste to form a gel body 6, which strongly bind with the non-woven fabric 4 to form a bound layer 5 between the non-woven fabric 4 and the gel body 6 on the piled part of the non-woven fabric 4 to thereby enforce furthermore the binding of the package base 1 and the gel body 6. This bag is formed into a required shape and a freeze treatment thereof is performed to obtain a cold-accumulating material. |
