초록 ▼

A method of and apparatus for packaging product masses in a form, fill and seal machine, wherein a continuous length of packaging film is joined in running relation by a continuous length of separately formed plastic reclosable fastener assembly having interlock profile strips spot sealed together a

A method of and apparatus for packaging product masses in a form, fill and seal machine, wherein a continuous length of packaging film is joined in running relation by a continuous length of separately formed plastic reclosable fastener assembly having interlock profile strips spot sealed together at package length intervals. The corunning fastener strip assembly and the packaging film are oriented so that the spot seals of the strip are located in alignment with the spaces between the product masses on the film to assure that the fastener strip assembly will be cross sealed at the spot seals when the film is cross sealed between the product masses to provide individual packages. The orienting may be effected by an indexing arrangement including sensor response to index marks on the film and the fastener assembly.

대표청구항 ▼

A method of packaging product masses in a form, fill and seal machine, comprising: running a continuous length of packaging film in the following order through a succession of work stations in the machine, including a loading station wherein product masses are successively placed into engagement wit

A method of packaging product masses in a form, fill and seal machine, comprising: running a continuous length of packaging film in the following order through a succession of work stations in the machine, including a loading station wherein product masses are successively placed into engagement with the film at substantially uniformly spaced intervals, a product mass enclosing and film sealing station wherein the film is wrapped and sealed into a tube about the product, and a cross sealing and package separation station wherein the film tube is cross sealed in the spaces between the successive product masses to seal the product masses within individual packages; adjacent to said loading station joining in corunning relation with the packaging film, a continuous length of separately formed plastic reclosable fastener assembly having interlocked profile strips spot sealed together at package length intervals; effecting said joining near one side of said product masses, and orienting the co-running fastener strip assembly and the packaging film so that the spot seals of the strip are located in alignment with the spaces between the product masses on the film; adjacent to said enclosing and sealing station securing the fastener assembly permanently within a fold of said film so that a package length section of the fastener strip assembly will be present in each individual product package; and at the cross sealing station cross sealing the fastener strip assembly spot seals with the cross sealing of the film tube.