Shrink film from single site catalyzed polyethylene

A multilayer shrink film having a shrink layer and at least one other layer wherein said shrink layer is prepared from a polyethylene blend composition having a density of from about 0.920 to about 0.950 g/cc and a melt index, I2, of from about 0.1 to about 0.9 grams per 10 minutes, and a molecular weight distribution Mw/Mn, of from about 2.5 to about 7;

• wherein said polyethylene blend composition comprises
• 1) from about 30 to about 50 weight % of a first polyethylene composition having a first weight average molecular weight, Mw1, of greater than about 140,000, a first molecular weight distribution, Mw1/Mn1, of from about 1.7 to about 3, and a first density d1, and;
• 2) from about 70 to about 50 weight % of a second polyethylene composition having a second weight average molecular weight, Mw2, that is greater than about 24,000 and less than said first average molecular weight Mw1;
• a second molecular weight distribution, Mw2/Mn2, of from about 1.7 to about 3 and a second density d2;
• with the provisos that 1) said d2 is greater than said d1, and 2) d2-d1, is from about 0.018 g/cc to about 0.032 g/cc, and;
• wherein density is measured according to ASTM D792 and melt index is measured according to ASTM D1238 when conducted at 190° C. using a 2.16 kg weight.

A shrink wrapped package comprising a collation film comprising a polyethylene blend composition having a density of from about 0.920 to about 0.950 g/cc and a melt index, I2, of from about 0.1 to about 0.9 grams per 10 minutes, and a molecular weight distribution Mw/Mn, of from about 2.5 to about 7;

• wherein said polyethylene blend composition comprises
• 1) from about 30 to about 50 weight % of a first polyethylene composition having a first weight average molecular weight, Mw1, of greater than about 140,000, a first molecular weight distribution, Mw1/Mn1, of from about 1.7 to about 3, and a first density d1, and;
• 2) from about 70 to about 50 weight % of a second polyethylene composition having a second weight average molecular weight, Mw2, that is greater than about 24,000 and less than said first average molecular weight Mw1;
• a second molecular weight distribution, Mw2/Mn2, of from about 1.7 to about 3 and a second density d2;
• with the provisos that 1) said d2 is greater than said d1, and 2) d2-d1, is from about 0.018 g/cc to about 0.032 g/cc, and;
• wherein density is measured according to ASTM D792 and melt index is measured according to ASTM D1238 when conducted at 190° C. using a 2.16 kg weight.