| 摘要 |
Fastener tape fabrication equipment (30) provides a fastener tape (40) for attachment in an opening in the top of a reclosable plastic bag (58). A continuous strip of intermediate layer (42) for carrying a continuous strip of profile fastener (44) is provided from a delivery assembly (32) with a constant tension to an applicator assembly (142). A pair of laterally spaced adhesive surfaces are also carried upon the intermediate layer (42) . The intermediate layer (42) passes over a generally V-shaped member (120), mounted upon the delivery assembly (32), in order to be folded. The profile (44) is inserted into the fold of the intermediate layer (42). Circumferentially grooved wheels (154, 156) then align the profile with the intermediate layer as the intermediate layer and profile are directed into a plurality of sealing bars (152) upon the applicator assembly (34) to form the fastener tape. A first set of sealing bars seal the profile (44) to the intermediate layer (42) and a second set of sealing bars seal the adhesive surfaces together to form a peel seal on the intermediate layer (42). The resulting fastener tape (40) is then collected on a windup roll. <IMAGE> |
