Film for wrapping

Abstract

A film having a large tensile stress in the machine direction, excellent mechanical properties and stretch-wrapping property, and that is less broken at the time of wrapping, can be favorably torn off in the transverse direction, can be intimately adhered on the container walls to be wrapped, and excellently restores its shape after it is depressed and deformed as a result of wrapping. The film for stretch-wrapping is formed of a resin composition containing, as a chief component, an ethylene/(meth)acrylic acid/(meth)acrylic acid ester terpolymer that contains not more than 7% by weight of a (meth)acrylic acid ester unit, and, optionally, containing an anti-fogging agent or a tackifier.

1 . A film for stretch-wrapping formed of a resin composition containing, as a chief component, an ethylene/(meth)acrylic acid/(meth)acrylic acid ester terpolymer that contains not more than 7% by weight of a (meth)acrylic acid ester unit, and, optionally, containing an anti-fogging agent or a tackifier.  
     
     
         2 . A film for stretch-wrapping formed of a resin composition containing, as a chief component, an ethylene/(meth)acrylic acid/(meth)acrylic acid ester terpolymer that contains less than 5% by weight of a (meth)acrylic acid ester unit, and, optionally, containing an anti-fogging agent or a tackifier.  
     
     
         3 . A film for stretch-wrapping according to  claim 1  or  2 , wherein said terpolymer is the one that contains from 5 to 20% by weight of a (meth)acrylic acid, and not less than 0.1% by weight but less than 5% by weight of a (meth)acrylic acid ester.  
     
     
         4 . A film for stretch-wrapping according to any one of  claims 1  to  3 , wherein the alkyl group of the (meth)acrylic acid ester has from 1 to 10 carbon atoms.  
     
     
         5 . A film for stretch-wrapping according to any one of  claims 1  to  4 , wherein the stress in the machine direction of when the film is stretched by 100% lies within a range of from 20 to 40 MPa.  
     
     
         6 . A film for stretch-wrapping according to any one of  claims 1  to  6 , wherein the molding is effected according to the T-die method.  
     
     
         7 . A film for stretch-wrapping formed of a resin composition containing, as a chief component, an ionomer obtained by ionizing with an alkali metal, an ethylene/(meth)acrylic acid/(meth)acrylic acid ester terpolymer that contains less than 5% by weight of a (meth)acrylic acid ester unit, and, optionally, containing an anti-fogging agent or a tackifier.  
     
     
         8 . A film for stretch-wrapping according to  claim 7 , wherein said terpolymer is the one that contains from 5 to 20% by weight of a (meth)acrylic acid, and not less than 0.1% by weight but less than 5% by weight of a (meth)acrylic acid ester, and the ionomer has an ionization degree of from 0.1 to 30%.  
     
     
         9 . A film for stretch-wrapping according to  claim 6  or  7 , wherein the alkyl group of the (meth)acrylic acid ester has from 1 to 10 carbon atoms.  
     
     
         10 . A film for stretch-wrapping according to any one of  claims 7  to  9 , wherein the stress in the machine direction of when the film is stretched by 100% lies within a range of from 20 to 40 MPa.  
     
     
         11 . A film for stretch-wrapping according to any one of  claims 7  to  10 , wherein the forming of the film is effected according to the T-die method.