Three side sealed aluminum foil bag, how to seal it on the fourth side? Edge to about 0.8CM, smooth, no wrinkles.
Generally not three millimeters so narrow, at least five millimeters.Buy a sealing machine, debugging, you can seal the temperature,Because of the vacuum, it is generally five to ten mm edge,Of course, the smaller bag, three mm edge also does not affect.
If only the seal is not vacuum, you can buy a heat sealing machine, very cheap,If you don't understand, keep asking me, thank you.
Hello, I am from Zhengzhou Meijia printing packaging, aluminum foil bag three edge sealing,Generally used to vacuum, with aluminum foil bag, there is a vacuum machine on the line, first time and then sealing, and generally have sealing function,
