Patent ID: 8870026

Claim:
A liquid pouring nozzle comprising front and rear laminate films, each film having a three-layer structure consisting of a uniaxially oriented or biaxially oriented base film layer and inner and outer sealant layers sandwiching the base film layer therebetween and having a one-way function, 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 thereof 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 base film layer has a steam permeability (JIS K7129) of not more than 10 g/(m 2 ·24 h), and wherein the laminate film has a bending strength per 15 mm width of 40-300 mN.