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.
申请公布号
WO0141610(A3)
申请公布日期
2002.01.17
申请号
WO2000GB04759
申请日期
2000.12.13
申请人
J R CROMPTON LIMITED;ROSE, JOHN, EDWARD;JORDAN, ANDREW, KEVIN;WARDLE, GLYN, A.
发明人
ROSE, JOHN, EDWARD;JORDAN, ANDREW, KEVIN;WARDLE, GLYN, A.