Beverage infusion packages and materials therefor
OwnerJohn Edward Rose, Andrew Kevin Jordan +1inventors
InventorsJohn Edward Rose, Andrew Kevin Jordan, Glyn A. Wardle
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Abstract
A beverage infusion package (e.g. a tea bag) is formed of porous, fibrous cellulosic material and has a closure seam produced by a mechanical compression action without heat sealing. The porous material contains thermoplastic fibres which are amorphous or are only partially crystalline and which make the package eminently suitable for infusion in a microwave oven. The porous, fibrous material may have a basis weight of 10 to 30 g m−2 and be comprises of a single wet-laid layer of an admixture of cellulosic fibres and the thermoplastic fibres.
Claims35
A beverage infusion package formed of porous, fibrous cellulsoic material and having a closure seam produced by a mechanical compression action without heat sealing characterised in that the porous material contains thermoplastic fibres which are amorphous or are only partially crystaline.
A porous fibrous material having a basis weight of 10 to 30 g m−2 and being comprised of a single, wet-laid layer of an admixture of cellulosic and thermoplastic fibres which are amorphous or only partially crystalline.
Dependencies are inferred from the claim text.