METHOD FOR PRODUCTION OF MULTILAYER STRETCH FILM

摘要

Disclosed is a method for producing a multilayer stretch film by stretching a multilayer laminate comprising a layer containing a vinyl alcohol resin (A) having a 1,2-diol unit in a side chain and a layer containing a thermoplastic resin (B) having a melting point of 125 to 300°C laminated on each other through a layer containing an adhesive resin (C). The method enables to produce a multilayer stretch film which shows excellent appearance even when the film is stretched at a high stretching ratio. In the method, a thermoplastic resin having a higher melting point than a stretching temperature of the laminate is used as the adhesive resin (C), and therefore a multilayer stretch film having the structure as mentioned above and having excellent appearance can be produced.