| 摘要 |
A plastic drinking or beverage dispensing vessel contains a nucleation area 6 for creating a predetermined size and quantity of bubbles in which the nucleation area has been created using a sonic etching or laser etching process. Etching may be carried out on the base 4 of a complete vessel, or on an initially separate base component. The plastics material of the vessel may be a polycarbonate or a blend of a polymer and/or polycarbonate and/or another material. |
