FIELD: packaging industry.
SUBSTANCE: invention relates to cross-linked films for vacuum packing into a tight film used as upper webs of vacuum packages from a tight film, which have properties of easy opening, and to packages made from them. Films according to the invention contain at least one layer of a brittle mixture of incompatible polymers.
EFFECT: invention enables to manufacture simpler and cheaper lower structures for vacuum packages from a tight film by transferring the light opening function from the lower web into the upper web; due to this, bottom web in addition to optional tightness and barrier properties should perform only functions of substrate, which significantly simplifies design.
23 cl, 8 dwg, 17 tbl
