Package
AssigneeToyo Aluminum Kabushiki Kaisha
InventorsMamoru Kamada, Masaei Ibi, Tomonobu Sekiguchi, Masashi Yamamoto, Noboru Andoh, Kenichi Itakura
Life of this patent
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Abstract
A packaging pouch having a laminate of easily peelable tapes heat-bonded to the package body where an opening of the package is to be formed. The laminate has outer heat-bonding layers heat-fused to heat-sealing layers of the package body. The bonding strength between the heat-bonding layers are such that they can be peeled from each other by hand, The laminate may be formed by co-extruding synthetic resins or by heat-bonding, The laminate may protrude into the package body from where the laminate is thermally bonded to the package body,
Claims10
A heat-sealed package comprising:
- a package body forming an enclosure and having a heat-sealing layer at an openable end of the package;
- and a laminate thermally fused to said package body at said openable end of the package, said laminate comprising outer layers each thermally fused to respective portions of the heat-sealing layer of said package body, and a middle layer interposed between said outer layers, said middle layer being bonded to said outer layers, said middle layer comprising a pattern of resin coating one of said outer layers, and adhesive covering said resin, said resin having a lower bonding strength with said one of said outer layers than a bonding strength of said adhesive with the layer contacted by the adhesive, such that said middle layer is easily peelable to create an opening at said openable end of the package.
A heat-sealed package comprising:
- a package body forming an enclosure and having a heat-sealing layer at an openable end of the package;
- and a laminate thermally fused to said package body at said openable end of the package, said laminate comprising outer layers each thermally fused to respective portions of the heat-sealing layer of said package body, and a middle layer interposed between said outer layers, said middle layer being bonded to said outer layers, said middle layer comprising a pattern of resin coating one of said outer layers, and pressure-sensitive adhesive covering said resin, said resin having a lower bonding strength with said one of said outer layers than a bonding strength of said pressure-sensitive adhesive with the layer contacted by the pressure-sensitive adhesive, such that said middle layer is easily peelable to create an opening at said openable end of the package.
Dependencies are inferred from the claim text.