FIELD: packaging industry.
SUBSTANCE: invention relates to coated films and packages made from said films. Coated film comprises a film comprising a first layer, a second layer and at least one inner layer between the first and second layers. First layer contains 70–100 wt % of polyethylene having density of 0.930 g/cm3 or less and a peak melting point of less than 126 °C. Second layer comprises 60–100 wt % of polyethylene having density of 0.905–0.970 g/cm3 and a maximum melting point of 100–135 °C. Inner layer comprises 40–100 wt % of polyethylene having density of 0.930–0.970 g/cm3 and a maximum melting point of 120–135 °C, where polyethylene is medium density polyethylene or high-density polyethylene. Film also contains a coating on the outer surface of the second film layer containing cross-linked polyurethane. Said coating contains less than 5 mol % of isocyanate groups.
EFFECT: simplified production of film and improved processability.
10 cl, 2 tbl, 2 ex
Authors
Dates
2021-01-26—Published
2017-05-25—Filed