초록 ▼

A reclosable plastic film bag and the method of making the same with the bag having opposed side walls, pressure closable separable opposed rib and groove fastener elements on confronting faces of the top for closing the bag, plastic film above the fastener elements hermetically closing the bag top,

A reclosable plastic film bag and the method of making the same with the bag having opposed side walls, pressure closable separable opposed rib and groove fastener elements on confronting faces of the top for closing the bag, plastic film above the fastener elements hermetically closing the bag top, lines of tear perforation through the film to tear off the top and perforation sealing strips attached to the surface of the film preventing the passage of air through the perforations.

대표청구항 ▼

A reclosable plastic film bag comprising in combination: opposed bag side walls forming a bag for containing a product; pressure closable separable opposed rib and groove continuous plastic fastener elements at the bag top for closing the bag; continuous plastic film extending above the rib and groo

A reclosable plastic film bag comprising in combination: opposed bag side walls forming a bag for containing a product; pressure closable separable opposed rib and groove continuous plastic fastener elements at the bag top for closing the bag; continuous plastic film extending above the rib and groove elements doubled at the distal edge of the film for hermetically sealing the bag above the rib and groove elements; parallel lines of tear perforations in the film located between the distal edge of the film and the fastener elements permitting tearing an opening strip off the top for access to the fastener elements; and perforation sealing frangible strips attached to a surface of the film sealing the perforations and preventing access of air therethrough and accommodating separation of the material with tearing of the film a the tear perforations.