| 摘要 |
<p>The container consists of a dispensing head with a nozzle and an outlet closed by a detachable cap, and a tubular body (7) with an inner sleeve (8). The body and sleeve are connected at one end to a collar around the dispensing head, and are closed at the other end. The tubular body is made from a material which returns to its original shape after it has been squeezed, while the inner sleeve is of a more supple material and contains the product to be dispensed. A non-return valve prevents air from escaping from the space between the body and sleeve. The inner sleeve has a double wall and can be made from a single sheet of material folded in half and rolled, with the free edges joined together. <IMAGE></p> |
