Graphics Reference
In-Depth Information
Paper bags are constructed from a continuous web of paper that is formed into a tube and
glued along the overlap to form a seam. The tube is torn to a specified length, frequently
against a serrated bar, which gives the bag a saw-toothed edge. The end is folded over
and glued to form the bottom. There are three general styles of bag construction: flat,
square or pinch bottom, and automatic bottom or self-opening style (SOS).
Flat bags are inexpensive to produce and make
economical use of materials. They work well for
containing flat items such as cookies or greet-
ing cards.
Square or pinch bottom bags can accommodate
bulkier items and work well as shopping bags
for single purchases of garments and other
lightweight merchandise.
Automatic bottom or self-opening style bags are
constructed with a more rigid bottom and are
often made of kraft paper to serve as grocery
bags or with attached handles to serve as shop-
ping bags.
Other styles of bag construction include sewn
open-mouth (left) and satchel (right).
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