| 摘要 |
<p>A thermally insulated cup is formed from a single-walled paper or plastic inner cup (10) and an insulating outer wrapper. The insulating outer wrapper comprises a paper base sheet or outer sidewall blank (12), optionally printed on one side, and a corrugated paper (14) or foamed plastic insert (14F). The insulating insert is similar in shape to the outer sidewall blank but smaller in size. The insert is glued in a centered position to the non-printed side of the sidewall blank to form a two-layered insulating wrapper. Less than 20% of the area of the insert is glued to the base sheet.</p> |
