Patent ID: 8418885

Claim:
A liquid pouring nozzle comprising front and rear laminate films each comprising a uniaxially oriented or biaxially oriented base film layer which has a steam permeability (JIS K7129) of not more than 10 g/(m 2 /24 h) and inner and outer sealant layers sandwiching the base film layer therebetween, wherein these laminate films are fused at a posture of opposing their inner sealant layers to each other at a surrounding portion other than a base end portion to be fusion-joined to an inner surface of a soft package bag main body at a side portion or a top portion thereof through the outer sealant layers, and the sealant layer is constituted with a non-oriented polyethylene layer or a polypropylene layer having a thickness of 10-60 μm provided that a melting point of the inner sealant layer is made higher than that of the outer sealant layer, and the laminate film has a bending strength per 15 mm width of 40-300 mN.