Non-continuously laminated multi-layered bags
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United States of America Patent
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Apr 24, 2018
Issued Date -
N/A
app pub date -
Oct 16, 2014
filing date -
Nov 16, 2009
priority date (Note) -
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status (Latency Note)
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Abstract
Multi-layer bags may be formed to include first and second sidewalls joined along a first side edge, an opposite second side edge, and a closed bottom edge. The first and second layers may be non-continuously laminated together to include bonded regions in which the layers are bonded and unbonded regions in which the layers are not bonded. Such a bag may be described as a “bag-in-a-bag” type configuration in which the inner bag is non-continuously bonded to the outer bag. The inventors have surprisingly found that such configurations of non-continuous bonding provides increased and unexpected strength properties to the multi-layer films and bags.
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International Classification(s)
- B29C:SHAPING OR JOINING OF PLASTICS; SHAPING OF SUBSTAN....
- B31F:MECHANICAL WORKING OR DEFORMATION OF PAPER OR CARD....
- B31B:MAKING BOXES, CARTONS, ENVELOPES, OR BAGS
- B65D:CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR....
- B29L:INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RE....
- B32B:LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA....
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