초록 ▼

The present invention relates to easy-open hermetically sealed single serving packages. The present invention relates in particular to a multi-layer film that is particularly adapted for use in individually sealed packages where increased storage life of the packaged product is desired. The present

The present invention relates to easy-open hermetically sealed single serving packages. The present invention relates in particular to a multi-layer film that is particularly adapted for use in individually sealed packages where increased storage life of the packaged product is desired. The present invention is also useful in packaging multiple individual servings together in a single overall package, so that when the overall package is opened, the individual servings are protected from oxygen and moisture. More particularly, this invention is concerned with a novel film used for packaging individual sticks of chewing gum so that the freshness of each individual stick of chewing gum or the like is retained for extended periods of time after the overwrap packaging has been opened.

대표청구항 ▼

[ I claim:] [1.] A packaging system adapted for packaging a product comprising a first packaging substrate said first packaging substrate being adapted when sealed to form an air tight package and a second separate packaging substrate completely enclosed within said first packaging substrate, wherei

[ I claim:] [1.] A packaging system adapted for packaging a product comprising a first packaging substrate said first packaging substrate being adapted when sealed to form an air tight package and a second separate packaging substrate completely enclosed within said first packaging substrate, wherein said first and second packaging substrates are not fixedly joined together and wherein said second packaging substrate forms a separate individually sealed package within said first packaging substrate, said second packaging substrate in contact with the product to be packaged comprising a sheet having a first layer, a second layer, and a barrier layer disposed between said first layer and said second layer, said second layer material selected from the group consisting essentially of polyester, oriented polypropylene, nylon and paper and said first layer of a polyolefin selected from the group consisting essentially of ethylene methacrylate, ethylene vinyl acetate, blends of low density polyethylene and linear low density polyethylene and blends of ethylene vinyl acetate and linear low density polyethylene, and ionomers, said sheet of said second packaging substrate having an easy-open feature and said sheet of said second packaging substrate having a thickness from about 0.25 mils to 2.0 mils.