The bags are made in lots of dimensions; a common tiny dimension is 1.5 by 2.5 inches (3.8 cm × 6.4 centimeters), and also a common large dimension is 9 by 12 inches (23 cm × 30 centimeters). Product density (gauge) varies; smaller sized bags are typically 40 to 45 µm.
Numerous such bags are made use of to contain foodstuffs, such as sandwiches and also freezer storage. Solitary and also several little products available for sale are commonly crammed in small zipper bags for ease and also exposure.
A number of types of reclosable attributes are offered for plastic bags. In some cases various other types of bag, such as a towel bag for toiletries fitted with a standard zip fastener, are explained as zipper bags. 5]
One bag was patented by Robert W. Vergobbi on May 18, 1954. [Citation needed] In the exact same year, Minigrip accredited them as pencil bags. The zipper storage bag’s most identified feature was not recognized till 1957, when a fifth-grader named Robert Lejeune showed that the bag can also be utilized securely as a food storage space device.  Eleven years later on, in 1968, Dow Chemical Company started marketing them under the name Ziploc. Widetrack ribs were included in 1982, clicking zippers in 1993 and also shade in 1997.