| 摘要 |
<p>PROBLEM TO BE SOLVED: To recover a used disposable hollow container efficiently for recycling by a method wherein the hollow container is formed so that it can be compressed easily to reduce its volume and labels or the like stuck to its trunk can be easily separated while preventing heat distortion of the container by the label. SOLUTION: The hollow container main body in an tubular shape comprising a mouth/neck part 2, a shoulder part 3 connecting to the mouth/neck part, a trunk part 4b and a bottom part 5 is made up of a thermoplastic synthetic resin by blow molding, and while the trunk part and the bottom part are formed in a thickness that is not so thin as to be distorted by thermal expansion, the trunk part is formed in an ultrathin structure with protuberances 4a deformative in expansion at the time of filling under heat provided, being dented toward the inside from the trunk wall surface 4b, and thereby the ultrathin hollow container is made up. A covering body 6 in a case-like shape having openings 6a and serving as a label or the like is put over the trunk part of the container, and while unnecessary deformation of the container arising from expansion can be prevented, the protuberances 4a are deformed by expansion and projected through the openings 6a to hold the covering body 6, and thereby the ultrathin hollow container 1A covered with the covering body 6 is composed.</p> |
