초록 ▼

A method of making materials for bags of the type having reclosable fasteners wherein the wall portions are of a laminate structure and wherein interlockable fastener elements are directly bonded to interior faces of the walls. The lamina of the inner faces of the wall panels serves as the sole bond

A method of making materials for bags of the type having reclosable fasteners wherein the wall portions are of a laminate structure and wherein interlockable fastener elements are directly bonded to interior faces of the walls. The lamina of the inner faces of the wall panels serves as the sole bonding agent for the fastener elements. The invention includes a method for making such bags.

대표청구항 ▼

A method of producing a multi-layered reclosable bag making material assembly comprising the steps of sequentially: continuously coating over essentially the entire area of a moving continuous substrate layer, a continuous fluent layer of resin, and thereby directly laminating the resulting said res

A method of producing a multi-layered reclosable bag making material assembly comprising the steps of sequentially: continuously coating over essentially the entire area of a moving continuous substrate layer, a continuous fluent layer of resin, and thereby directly laminating the resulting said resin layer to said substrate; and immediately thereafter, while said so-coated resin layer is still in an adhesive state on said substrate, continuously applying to said resin layer, a reclosable fastener strip means, and thereby solely by means of said still adhesive state resin layer directly bonding said fastener means to said resin layer.