| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To obtain a surface-treated laminated polyamide based film which has good lamination strength in high humidity, gas-barrier properties, and good characteristics in terms of low hot water shrinkability and thickness accuracy and can appropriately be used as a base material film of packaging bags for, for example, food, chemicals, industrial products, etc., and a method for producing the film. <P>SOLUTION: In the laminated polyamide based film having a laminated structure including at least two layers of a layer (a) containing an aliphatic polyamide based resin (A) as a main component and a layer (b) containing an aromatic polyamide based resin (B) as a main component, on at least one surface of the surface-treated laminated polyamide based film, the lamination strength in moistened condition of a surface-treated surface subjected to surface treatment by discharge treatment in an atmosphere in which the concentration of an inert gas is at least 99%, and the concentration of an active gas is 1% or below is at least 3.9 N/15 mm, and oxygen permeability under the condition of 25°C×50% RH is 80 fmol/(m2/sec/Pa) or below. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
