초록 ▼

A method of and apparatus for packaging a blocky product such as cheese, into a wrapped envelope package, with material especially adapted for said packaging and wherein a bottom face of the product article is engaged on a panel area of the wrapper sheet which sheet has extended portions that are wr

A method of and apparatus for packaging a blocky product such as cheese, into a wrapped envelope package, with material especially adapted for said packaging and wherein a bottom face of the product article is engaged on a panel area of the wrapper sheet which sheet has extended portions that are wrapped about the article and sealed across a top face of the article, with one of the portions of the wrapper sheet having a reclosable zipper and a web portion alongside said zipper which is adapted to be severed or ruptured to provide a mouth opening for access to the article within the package and the mouth opening being reclosable by the enclosed zipper. The zipper may be provided with structure to prevent its being pulled open during the wrapping and sealing of the wrapper about the article. The web portion may have guidance for severing or rupturing the same when access is desired into the package.

대표청구항 ▼

In a method of forming in a form, fill and seal machine a product enclosing package having an envelope with a face panel extending between opposite sides and end edges of the envelope, and including folding a single wrapper sheet from opposite sides of said face panel into tubular shape and bringing

In a method of forming in a form, fill and seal machine a product enclosing package having an envelope with a face panel extending between opposite sides and end edges of the envelope, and including folding a single wrapper sheet from opposite sides of said face panel into tubular shape and bringing longitudinal margins of the sheet into position opposite said face panel and sealing the margins together into a seam extending between said end edges, and then effecting cross seals at the opposite ends of the envelope, the improvement comprising: providing within one side of said envelope a fold with zipper means comprising reclosable separable fastener profiles extending between said end edges and in parallel spaced relation to said seam; maintaining said reclosable zipper means closed during said folding and sealing; maintaining said fold in folded condition by said zipper means during the folding and sealing steps; and thereby leaving a pilfer-proof web extending between said cross seals and projecting outwardly from and along said fastener profiles, so that the envelope remains fully sealed until said web is ruptured to provide a package mouth opening which is adapted to be reclosed by closing said zipper means.