A paper bag is a bag made out of paper, usually kraft paper. Paper bags are commonly used as shopping bags, packaging, and sacks. The first paper bag factory was established in 1852 by Francis Wolle, in Pennsylvania, United States. Wolle and his brother Charles invented the machine that mass-produced the paper bags. Today, paper bag factories can be found all over the world. They come in all shapes and sizes, and produce all kinds of paper bags, from simple brown paper bags to designer shopping bags. Paper bags have many advantages over plastic bags. They are biodegradable, recyclable, and durable. They are also more stylish and can be printed with logos and designs. If you are in the market for paper bags, there are many paper bag factories to choose from. Do some research and find the right one for your needs.