| 摘要 |
PROBLEM TO BE SOLVED: To provide a single layer stretch film made of a material except a polyvinyl chloride, hardly causing the break of the film when being stretched when overlap wrapping in automatic wrapping or manual wrapping, and having good other suitability for the wrapping. SOLUTION: This film hardly causing the break when carrying out the overlap wrapping is obtained by regulating the ratio (TD/MD ratio) of the tensile stresses in the transverse direction to the machine direction, to be a prescribed level or more by means for the controlling of film-forming conditions such as pre set temperatures of an extruder and a die within adequate ranges according to the take-over speed of the film when producing the film. A resin composition comprising a linear low-density polyethylene and a high-pressure polyethylene is suitable for the wrapping. |
