초록 ▼

Fastener tape fabrication equipment and process for manufacturing fastener tape for attachment in an opening in the top of a reclosable plastic bag. A continuous strip of intermediate layer for carrying a continuous strip of profile fastener is provided from a delivery assembly with a constant tensi

Fastener tape fabrication equipment and process for manufacturing fastener tape for attachment in an opening in the top of a reclosable plastic bag. A continuous strip of intermediate layer for carrying a continuous strip of profile fastener is provided from a delivery assembly with a constant tension to an applicator assembly. A pair of laterally spaced adhesive surfaces are also carried upon the intermediate layer. The intermediate layer passes over a generally V-shaped member, mounted upon the delivery assembly, in order to be folded. The profile is inserted into the fold of the intermediate layer. Circumferentially grooved wheels then align the profile with the intermediate layer as the intermediate layer and profile are directed into a plurality of sealing bars upon the applicator assembly to form the fastener tape. A first set of sealing bars seal the profile to the intermediate layer and a second set of sealing bars seal the adhesive surfaces together to form a peel seal on the intermediate layer. The resulting fastener tape is then collected on a windup roll.

대표청구항 ▼

[ What is claimed is:] [1.] A fastener tape for carrying profile fasteners to be mounted in an opening in a reclosable bag having opposing sides, said fastener tape comprising:an intermediate layer having opposite longitudinal edges;an elongated non-sealable barrier substantially longitudinally coex

[ What is claimed is:] [1.] A fastener tape for carrying profile fasteners to be mounted in an opening in a reclosable bag having opposing sides, said fastener tape comprising:an intermediate layer having opposite longitudinal edges;an elongated non-sealable barrier substantially longitudinally coextensive with said intermediate layer and laterally spaced from said edges; anda releasable interlocking profile fastener on said intermediate layer, said profile fastener substantially longitudinally coextensive with said intermediate layer and laterally spaced from said edges and said non-sealable barrier.