| 摘要 |
<p>PURPOSE:To obtain a liquid-housing container capable of avoiding adsorption of flavory ingredients and available for longtime preservation of contents keeping its flavor, by a method wherein the external surface of a laminated material is made of polyolefin while the internal surface thereof is made of resin made by mixing, at a specified rate, copolymer made of olefin and unsaturated carboxylicacid derivative to polyester. CONSTITUTION:A laminated material 1, mainly made of paper and is made by forming plastic laminae on both the external and the internal faces thereof, is formed in a sleeve shape. Two sides 121, 122, 123 and 141, 142, 143 are bent inwardly, and two sides 111 and 131 are folded onto the sides 121, 122, 123 and 141, 142, 143, and at the same time the sides 111 and 131 are bonded by heating to the sides 121, 122, 123 and 141, 142, 143. Then the side 131 is bonded to the side 111 by heating, and thereby the bottom of a container is constructed. Polyolefin is used for forming the external, face of the laminated material 1 while mixed resin made by mixing 5-30wt.pts. of copolymer made of olefin and unsaturated carboxylic acid derivative to 100wt.pts. of polyester is used for forming the internal face of the laminated material.</p> |
