| 摘要 |
Method of improving domestic dispensers of pasty and semi-liquid products. The product is contained in a pouch inserted in the dispenser. Whilst a non-return valve 9 prevents the return to the exterior of air which has just filled the space between the walls which has been rendered empty by the dispensings. Confined between the container and the pouch, the air transmits onto the product any pressure applied on the sides of the container. This occurs however small the remaining quantity 13 is. The intake created by the release opens the non-return valve 9. A little air enters 14 whilst the container returns to its natural shape. A tubular strainer prevents any choking of the pouch. Always immediate, expulsion remains possible in all positions until total emptying. Air is no longer in contact with the product. The method is particularly intended for disposable domestic dispensers. <IMAGE>
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