This invention relates generally to thin flexible plastic bags, and more particularly to a plastic bag which can be evacuated after articles are inserted therein.
Heretofore, the evacuation of entrapped air from plastic bags, after articles have been inserted therein, has been accomplished with the use of complex and expensive machinery. For example, plastic bags have been collapsed about articles by inserting a needle-like tube into the bag and connecting the tube to a vacuum pump for evacuating the bag. This type of machinery is common in the packaging of food products such as cheese, meats and vegetables.
The expensive machinery required to evacuate bags heretofore utilized in the packaging of products is not readily available to the individual consumer who, at one time or another, may want to store food products either in a refrigerator or in a freezer by using an evacuated bag.