| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide crease grooves on PET bottles and canning cans during their manufacturing process so that they can be easily collapsed after use without use of instruments, thus providing sure and easy crush thereof after use, and to reduce the volume thereof for labor-saving in collection thereof and for facilitating their carrying home in mountain climbing and at public facilities, thus preventing illegal disposal and scattering. <P>SOLUTION: During manufacturing processes of PET bottles and canning cans, crease grooves are provided for ease in collapsing them after use. The forms and locations of the grooves are selected according to the different forms of various containers, ensuring provision of crease grooves that allow the containers to be surely collapsed into sheet-like shapes, thus to preventing them from restoring their original forms, by an application of outside force such as stepping down, etc. <P>COPYRIGHT: (C)2005,JPO&NCIPI</p> |
