A vacuum packaging film with an improved embossed pattern suitable for evacuation of gas from a vacuum packaging bag made of the film. The embossed pattern includes a plurality of roughly parallel sequences of substantially collinear ridges. The ridges of a first sequence are offset with respect to the...http://www.google.com.au/patents/US20060072860?utm_source=gb-gplus-sharePatent US20060072860 - Multi-layer film for forming a vacuum packaging bag and method of manufacture
