| 摘要 |
<p>Disclosed herein is a smokable food-packaging film comprising at least one layer of a mixture of 45 to 90 wt% polyamide, 10 to 55 wt% copolymer of alpha -olefin and vinyl alcohol, and 5 to 30 wt% polyolefin, in which the mixture falls in the pantagonal range defined in Figure 1 by linear lines connecting the points A, B, C, D and E, respectively, said layer having the properties of a permeability to 50 % concentration of methanol of not less than 200 g m<2>.day.atm at a temperature of 60 C and a relative humidity of 0 % and an oxygen gas-permeability of not more than 50 cc/m<2>.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 m<2>.day at a temperature of 40 DEG C and a relative humidity of 90 %.</p> |
