초록 ▼

A packaging material suitable for forming a heat sealable, easy-opening and reclosable package is comprised of a heat sealable base member material having a first heat sealable surface and, secured to the heat sealable surface, an elongate, heat sealable, multilayer, flexible, peelable and reclosabl

A packaging material suitable for forming a heat sealable, easy-opening and reclosable package is comprised of a heat sealable base member material having a first heat sealable surface and, secured to the heat sealable surface, an elongate, heat sealable, multilayer, flexible, peelable and reclosable, preferably coextruded, strip comprised of an interior tacky adhesive layer, first and second sealant layers each comprised of heat sealable polymer, and a rupturable layer, preferably comprised of an ionomer, proximate the tacky adhesive layer. One of the strip sealant layers is secured to the first heat sealable surface of the base member. The strip enables the base member to be heat sealed along and by means of the strip to form a package whose heat seal has sufficient initial seal strength to remain closed during handling and yet can be manually readily opened and reclosed.

대표청구항 ▼

[ What is claimed is:] [1.] A packaging material suitable for forming a heat sealable, easy-opening and reclosable package, comprising a heat sealable base member material having a first heat sealable surface and, secured to the heat sealable surface, an elongate, heat sealable, multilayer, flexible

[ What is claimed is:] [1.] A packaging material suitable for forming a heat sealable, easy-opening and reclosable package, comprising a heat sealable base member material having a first heat sealable surface and, secured to the heat sealable surface, an elongate, heat sealable, multilayer, flexible, peelable and reclosable strip comprised of an interior tacky adhesive layer, a first sealant layer disposed to one side of the tacky adhesive layer and comprised of a first heat sealable polymer, and a second sealant layer disposed to the other side of the tacky adhesive layer and comprised of a second heat sealable polymer, the strip including a rupturable layer proximate the tacky adhesive layer, each of the sealant layers being surface layers, one of the sealant layers being secured to and being heat sealable to the first heat sealable surface of the base member material, the strip enabling the base member material to be heat sealed to a heat sealable surface of itself or of another base member material or of a base structure along and by means of the strip to form a package whose heat seal through the strip has sufficient initial seal strength to remain closed during handling and yet can be manually readily opened and reclosed.