Stretch wrap films

A container packaging comprising a stretchable wrap film having a value of MD tear resistance, a value of TD tear resistance and a value of MD tensile strength at 30% comprising a polymer blend, the polymer blend comprising (percent by weight):

• I) 50 to 90% of an ethylene polymer composition having an ester content, comprising a recurring unit derived from an ester selected from (1) ethylenically unsaturated organic monomer of esters of unsaturated C3-C20 monocarboxylic acids and C1 to C 24 monovalent aliphatic or alicyclic alcohols, and (2) vinyl esters of saturated C2-C18 carboxylic acids, wherein the ester content ranges from 2.5 to 8 wt % based on the total weight of the ethylene polymer composition, the ethylene polymer composition having a density ranging from 0.920 to 0.94 g/mL:
• and
• II) 10 to 50% of an ethylene-based polymer component having a density ranging from 0.9 to 0.930 g/mL and a melt flow rate up to 4 g/10 min;
• the ethylene-based polymer component being selected from:
• i) a linear polyethylene consisting of ethylene and 0.5 to 20% by mole of a first CH2═CHR α-olefin, where R is a hydrocarbon radical having 2-8 carbon atoms:
• and
• ii) a polymer blend comprising (a) 80-100 parts by weight of a random polymer of ethylene with at least one second CH2═CHR α-olefin, where R is a hydrocarbon radical having 1-10 carbon atoms, the random polymer (a) containing up to 20 mol % of the second CH2═CHR α-olefin and having a density between 0.88 and 0.945 g/mL;
• and (b) from 5 to 30 parts by weight of a random interpolymer of propylene with at least one third CH2═CHR α-olefin, where R is a hydrocarbon radical having from 2 to 10 carbon atoms, and optionally with ethylene, said random interpolymer (b) containing from 60 to 98% by weight of units derived from propylene, from 2 to 40% by weight of recurring units derived from the third CH2═CHR α-olefin, and from 0 to 10% by weight of recurring units derived from ethylene, and having a xylene-insoluble fraction a room temperature greater than 70%:
• wherein the stretchable wrap film has a ratio between the value of MD tear resistance and the value of TD tear resistance over 0.3 and the value of MD tensile strength at 30% ranges between 6.5 to 15 N.