packaging film, has been prepared from now, and how to use

摘要

The present invention relates to the packaging which has been prepared from this and perforated film, comprising at least one layer. Filling, transport, and packaging such, comprises a combination of perforation density perforations sized to allow during the process is placed on the pallet, during the pressure filling of particularly fine powder materials, air effective removal. A perforated film comprising at least one layer, one layer comprises perforations having individual size of less 100 microns or (μm), the present invention, the total perforation area to the total film surface area, especially at least ratio is, to provide a film ^{((μm) 2} / ^{(in) 2)} is a 400,000 2,000,000 square microns film per one square inch.