| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a foam-paper cup having a foam layer with sufficient heat-insulation effect, of which only a thermoplastic resin layer of the surface of the paper cup expands, and, furthermore, which can be produced without increasing a forming temperature during cup formation and under the same conditions as those required for the formation of an ordinary paper cup and can form satisfactory-adhesion-having heat-seal under the same conditions as the heat-seal temperature of an ordinary lid. SOLUTION: The cup is a paper cup A consisting of a body 1 and a bottom 2, and at least the body 1 is composed of a laminate body comprising, in the following order from the side of it, a thermoplastic resin foam-layer, a base- material layer made of paper as its main material, and a thermoplastic resin layer. The thermoplastic resin layer consists of two layers, one being a layer of polyethylene resin having a high melting point which is formed on the side of the base-material layer made of the paper as the main material, and a layer of polyethylene resin having a low melting point formed on the innermost side. The range of the melting point of the polyethylene resin having the high melting point is 120-130 deg.C, and the range of the melting point of the polyethylene resin having the low melting point is 100-120 deg.C.</p> |
