| 摘要 |
<p>A reclosable plastic bag (10) having two panels (15) of plastics sheet or film joined to each other along their opposite side edges (12) to define a bag with an opening (13). An extruded closure/sealing means (14) of one or more inter-engagable elongate rib/groove configurations (14a, 14b) closes the opening, and a plurality of elongate strengthening ribs (18) are also extruded adjacent, and parallel, to the closure/sealing means (14) on each of the panels of the bag and also inwardly and outwardly of the closure means. A plurality of shallow ribs (17) are also provided on the insides of the panels and extending parallel to said closure means and outwardly thereof to assist in gripping said panels when opening the bag, and the rib/groove configurations (14a, 14b) of the closure means (14) have a plurality of projections (19) thereon spaced apart along their length whereby during progressive engagement of the rib within its associated groove a series of audible and/or tactile signals will be provided signifying progressive closure of the closure means.</p> |
