Patent ID: 6823774
Filing Date: 2004-11-30
Classification: A23L,B65D

Abstract:
A freshness-keeping device for keeping the freshness of food or other material to be preserved, which comprises an adsorbent adsorbed with a volatile freshness-keeping liquid and a film cover made of a material having a high impermeability to gas of the freshness-keeping liquid, which has larger dimensions than the adsorbent to cover the adsorbent from the outside, wherein the cover has a skirt portion extending in a lateral direction of the adsorbent and a dispersing opening is formed at the skirt portion to permit the freshness-keeping liquid to gradually disperse outwardly from the adsorbent, wherein the cover comprises at least one film sandwiching the adsorbent, and wherein a bonding area is formed at the skirt portion by bonding opposing sandwiched surfaces of the at least one film.