Abstract: An adsorbent (2) is sandwiched by two films (4) from upper and lower directions; the two films (4) are bonded to upper and lower surfaces of the adsorbent (2). A skirt portion (4A) extending in a lateral direction of the adsorbent (2) is formed in an outer periphery of each of the films (4) and dispersing openings (8) are formed between the skirt portions (4A). Then, a freshness-keeping liquid impregnated in the adsorbent (2) is gradually dispersed outside from each side portion (2A) of the adsorbent (2) through the dispersing opening (8), whereby the adsorbent (2) in the freshness-keeping device (1) is prevented from contacting directly food and the freshness of the food can be kept stably in a long period of time.

Abstract: Apparatus for storing and dispersing food preservatives in a closed food container. The apparatus includes an absorbent strip sandwiched between two layers of non-woven fabric to form a non-woven fabric combination. This combination is then placed between two layers of plastic film in a lattice network, which is then placed between plastic cover layers. The plastic cover layers are sealed or left opened along their edges allowing the absorbent's gas emission rate to be quantitatively controlled and regulated by means of prearranged perforations and selective opening of the sides and faces of the plastic cover layers.