How to use vacuum packaging bags correctly to evacuate?

In many cases, we only pay attention to whether the vacuum packaging bag leaks or has pinholes. Next, let's talk about another factor that affects the quality of vacuum packaging bags, which is the sealing of vacuum packaging bags. Sealing is also an important factor affecting the quality of the items inside the packaging bag, so we need to pay attention to the firmness of the sealing when purchasing a sealing machine and during the sealing process. For products that require vacuum pumping, we need to pay attention to the following three points:

1、 According to the needs of the packaged items, determine the required sealing time. The vacuum time is generally adjusted at around 20-30 seconds. The longer the time, the higher the vacuum degree. As the altitude of the usage area increases, the vacuum degree will decrease proportionally.

2、 Adjust the sealing temperature and sealing time according to the material of the vacuum packaging bag. Pay attention to the heat sealing delay of 6 seconds. Generally, the temperature of the double-layer composite film is adjusted to 2-3 levels, and the time is adjusted to 3-4 seconds. Test the temperature and time of various packaging materials first. As working hours increase, reduce gears or shorten time appropriately.

3、 Arrange the vacuum packaging bags evenly on the sealing strip and place them under the bag pressing strip. When the items inside the packaging bag need to be vacuumed, close a vacuum chamber and apply a little pressure. The entire packaging process from vacuum, sealing, printing, to gas return is controlled by an electrical automatic program in one go. While working in one vacuum chamber, items can be placed in another vacuum chamber. After one vacuum chamber returns to zero, the upper vacuum chamber can be moved to another vacuum chamber, allowing the left and right chambers to work alternately.

The above introduction on the correct use of vacuum packaging bags is provided by Jinde Packaging. Jinde Packaging provides a one-stop service for vacuum packaging bag design, printing, lamination, slitting, and bag making, with excellent equipment, rich experience, and high quality at a low price. Since its establishment, Jinde Packaging has consistently ranked among the top in sales and is an ideal manufacturer for wholesale and customization of vacuum packaging bags. Hotline: 15902743510