| 摘要 |
A sleeve element for a stretch- film package comprises substantially homopolymeric polyolefinic film material having a density of from 0.918 to 0.923, a melt index of from 0.2 to 0.75 and a stress relaxation index, measured at 30% strain, of at least 300 lbs. Per square inch (2100 kN/m<2>) after 72 hours. |
