pa p e r b ag s
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 greeting 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 shopping bags.
Other styles of bag construction include sewn open-mouth (left) and satchel (right).
120
the graphic design reference
098-123_30592.indd 120
Wh me int tu
&
specification book
5/13/13 3:40 PM
P
Job No: 05-30592 Title: RP-Graphic Design Reference & Specification #175 DTP: 216 Page: 120 186C (RAY) (Text)