| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a light shielding paper cup which secures light shielding property, at the same time, does not allow a light-shielding layer to be seen through, is not warped nor twisted and can be easily molded, and which does not expose the light-shielding layer when a cover is stripped. <P>SOLUTION: The light shielding paper cup 1 is molded by using a laminated light-shielding paper 10 which has a light-shielding printed layer 13 between two sheets of base papers 11, 12, wherein the light-shielding printed layer 13 is laminated via a resin layer 14 on the outside of the base paper 11 being the inner side of the paper cup of the laminated light-shielding paper 10, the sum of basis weights of the two sheets of base papers 11, 12 of the light-shielding printed layer 13 is 150 to 350 g/m<SP POS="POST">2</SP>and the basis weight of one base paper is set to be at least 1.3 times the basis weight of the other base paper. As a result, the warpage and twist of the less basis weight side base paper due to the rigidity of the more basis weight side one is prevented and, moreover, in any base paper, the light-shielding printed layer 13 is concealed and the paper cup 1 is easily molded. Further, when the cover is to be stripped, the stripping is performed in the layer of the base paper and the exposure of the light-shielding printed layer 13 is prevented. <P>COPYRIGHT: (C)2013,JPO&INPIT</p> |
