Portable paper bag manufacturers teach you how to distinguish the good and bad paper!
Portable paper bag is a common paper packaging in our daily life. It can be used to hold things, which is convenient and beautiful.
So, how to distinguish the good and bad paper materials used in portable paper bags?
Let's have a look today!
There are three ways to distinguish paper quality:
1. Tearing method: for paper bags, wood pulp paper with hairy stubble has high strength; if the tear is neat without hairy stubble, straw pulp paper or wood pulp has few components and low strength.
2. Hand rubbing method: soak the paper bag in water for a period of time, and then rub it with both hands after taking it out. If it is not fluffy or resistant to rubbing, it means that the paper is good.
3. Burning method: after burning, the paper with paper ash forming and not breaking is good; the paper with paper ash breaking and not forming is poor.