초록 ▼

A flexible continuous reclosable plastic zipper having one strip with a groove and another strip with a rib for interlocking insertion therein, a hot melt plastic peel seal in the base of the groove with the rib bonded to the peel seal material to initially join the rib and groove and with the rib a

A flexible continuous reclosable plastic zipper having one strip with a groove and another strip with a rib for interlocking insertion therein, a hot melt plastic peel seal in the base of the groove with the rib bonded to the peel seal material to initially join the rib and groove and with the rib and groove breaking apart away from the bonding material at the first opening and thereafter releasably interlocking in a normal manner with the peel seal material remaining within the groove. The groove is made sufficiently deep so that with initial interlocking, the rib must penetrate to the base of the groove deeper than normal operation to lock to the peel seal. When broken from the peel seal, the rib inserts sufficiently for the jaws of the groove to snap over the rib and then locks without interference from the peel seal which is relatively rigid and nonadhesive after the rib is first broken away.

대표청구항 ▼

A flexible continuous reclosable plastic zipper, comprising in combination: a female member having a groove and locking jaw means; a male member having a rib for insertion into the groove and being locked therein by said jaw means at a first insertion depth of the rib into the groove; said jaw means

A flexible continuous reclosable plastic zipper, comprising in combination: a female member having a groove and locking jaw means; a male member having a rib for insertion into the groove and being locked therein by said jaw means at a first insertion depth of the rib into the groove; said jaw means moving to a gripping position when the rib is inserted into the groove to a second insertion depth deeper than said first depth; and a peel seal joining bond material between the rib and groove bonding the rib into the groove at a third over-closed insertion depth at least equal to said second depth; one of said rib and groove breaking from the peel seal bond material upon first separation of the rib and groove with the bond material remaining nonadhesive and permitting normal interlocking of the rib and groove after first breaking from the bond material.