| abstract |
Disclosed herein is a smokable food-packaging film comprising at least one layer of a mixture of 45 to 85 wt % polyamide, 10 to 45 wt % copolymer of olefin and vinyl alcohol, and 5 to 30 wt % polyolefin, in which the mixture falls in the pantagonal range defined in FIG. 1 by linear lines connecting the points A, B, C, D and E, respectively, said layer having the properties of a permability to 50% concentration of methanol of not less than 200 g/m2.day.atm at a temperature of 60 DEG C. and a relative humidity of 0% and an oxygen gas-permeability of not more than 50 cc/m2.day.atm at a temperature of 30 DEG C. and a relative humidity of 60% and a water vapor-transmission rate of not more than 70 g/m2.day at a temperature of 40 DEG C. and a relative humidity of 90%. |