Patent ID: 8418884

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, 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, and a melting point of the inner sealant layer is higher than that of the outer sealant layer, and the base film layer is constituted with a polyethylene terephthalate film layer or a nylon resin film layer having a thickness of 8-30 μm and has a steam permeability (JIS K7129) of not more than 10 g/(m 2 ·24 h), and an orientation direction of the uniaxially oriented base film layer or a longitudinal direction (MD) of the biaxially oriented base film layer is arranged substantially in a proceeding direction of a tear opening of the nozzle, and the laminate film has a bending strength per 15 mm of 40-300 mN.