Method of and means for making reclosable bag material, and material produced thereby
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United States of America Patent
Stats
-
May 19, 1987
Grant Date -
N/A
app pub date -
Nov 14, 1985
filing date -
Nov 14, 1985
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method of and apparatus for making, and the resulting material for fabricating reclosable bags and in which a length of web of predetermined width of bag material as wound on a mandrel has fastener strip sections joined to and across the width of the web. The web is adapted to travel continuously spirally about the mandrel. The fastener carrying web may be folded longitudinally and resiliently flexible profiles of the folded fastener strip sections separably joined. Ends of the fastener strips before, and after, folding may be flow melted and fusedly flattened. Ends of the fastener strips may be aligned with a fold juncture of an underturned flange of the web and the margin then unfolded to extend beyond the strip ends.
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Cited Art Landscape
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