Flexible cellulosic fiber-based honeycomb material
AssigneeCascades Canada Ulc
InventorsHugues Prud'homme, Diego De Paoli, Michael Kumar, Marc Brassard, David James
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Abstract
A flexible cellulosic fiber-based material including: a core portion having a geometrically patterned structure defining two spaced-apart substantially planar faces and providing air space therebetween, the core portion including cellulosic fiber-based walls having a core grammage; and at least one cellulosic fiber-based liner bonded to a respective one of the planar faces of the core portion and having a liner grammage lower than the core grammage, the material being flexible along a plane defined by the at least one liner.
Claims36
A flexible cellulosic fiber-based material comprising:
- a core portion having a geometrically patterned structure defining two spaced-apart substantially planar faces and providing air space therebetween, the core portion including cellulosic fiber-based walls having a core grammage;
- and
- at least one cellulosic fiber-based liner bonded to a respective one of the planar faces of the core portion and having a liner grammage lower than the core grammage, the material being flexible along a plane defined by the at least one liner.
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A flexible cellulosic fiber-based material comprising:
- a core portion having a three dimensional geometrically patterned structure with cellulosic fiber-based walls having a grammage between 60 and 200 grams per square meter, the three dimensional geometrically patterned structure defining two spaced-apart substantially planar faces and providing air space therebetween;
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- at least one cellulosic fiber-based liner bonded to a respective one of the planar faces of the core portion and having a grammage below 100 grams per square meter.
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A method for manufacturing a flexible cellulosic fiber-based material, comprising:
- providing a core portion having a geometrically patterned structure defining two spaced-apart substantially planar faces and a plurality of cells having a diameter and a height and providing air space therebetween, the core portion including a cellulosic fiber-based material having a core grammage and having a cell height and diameter ratio below 1.1;
- and
- bonding at least one liner to a respective one of the planar faces of the core portion, the at least one liner including a cellulosic fiber-based material having a liner grammage, the core grammage and the liner grammage being selected to obtain a lower liner grammage than the core grammage, the packaging material being flexible along a plane defined by the at least one liner.
Dependencies are inferred from the claim text.