How to improve the peel strength of packaging bags

When I go to the market to buy vegetables, I sometimes encounter this kind of embarrassment. The plastic packaging bag in my hand suddenly leaks. It was good when I first took it. Why did it suddenly leak? In fact, this is related to the peel strength. Yes, the following will show you how to improve the peel strength of plastic packaging bags:

1, the surface tension is too low

When the surface tension does not meet the minimum requirements for compounding, it should be corona treated. If the corona treatment still fails to meet the requirements, the substrate should be replaced before compounding.

2, control the curing temperature and time

The curing time needs to be strictly controlled. Generally, the curing temperature is controlled at about 40℃, and the curing time is controlled at 36 hours.

3, control the amount of curing agent

Under the premise of sufficient testing, the proportion of glue curing agent added can be appropriately reduced, generally 5% less.