Freshness-keeping device

A - Human Necessities – 23 – L

Patent

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Details

A23L 3/349 (2006.01) A23L 3/00 (2006.01) A23L 3/3589 (2006.01) B65D 81/28 (2006.01)

Patent

CA 2538024

A tool for retaining freshness, comprising an adsorbent adsorbing a freshness retaining liquid and film-like covers having high impermeability against the gas of the freshness retaining liquid and covering the adsorbent from the outside with the sizes thereof larger than that of the adsorbent. The covers are formed in the sizes larger than that of the adsorbent, the outer edge sides thereof are extended to the side of the adsorbent in the state of holding the adsorbent from the upper and lower sides to form skirt parts separated from each other in the vertical direction, and an opening for vaporization allowing the vaporization of the freshness retaining liquid to be gradually vaporized from the adsorbent to the outside is formed between the upper and lower skirt parts. Layers having a function for adsorbing and diffusing liquid matter adhered onto the surfaces of the film covers thereinto are formed on both or one of the upper and lower film covers forming the skirt parts on the side thereof coming into contact with the adsorbent.

Cette invention concerne un outil permettant de conserver la fraîcheur. Cet outil comprend un agent adsorbant permettant d'adsorber un liquide de conservation de la fraîcheur et des protections de type film présentant une imperméabilité élevée au gaz émanant du liquide de conservation de la fraîcheur et protégeant l'agent adsorbant de l'extérieur ; ledit film présentant des dimensions plus grandes que celles de l'agent adsorbant. Les protections présentent des dimensions plus grandes que celles de l'agent adsorbant. Les rebords extérieurs s'étendent à côté de l'agent adsorbant de manière à maintenir ledit agent adsorbant par les côtés supérieur et inférieur afin de former des parties jupes séparées verticalement l'une de l'autre. L'outil comprend également une ouverture permettant l'évaporation progressive du liquide de conservation de la fraîcheur depuis l'agent adsorbant vers l'extérieur, laquelle ouverture est ménagée entre les parties jupes supérieure et inférieure ; des couches dotées d'une fonction permettant d'adsorber et de diffuser des particules liquides collées sur les surfaces des protections de type film. Ces couches sont formées sur une ou sur les deux protections supérieure et inférieure définissant des parties jupes sur les côtés entrant en contact avec l'agent adsorbant.

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