Four side sealing bag is composed of four sealing edges, like two pieces of film together to seal the four edges, which is the source of four side sealing bag.

1. Features of four side sealed bags:

(1) The product has a good three-dimensional effect and is cube shaped after packaging. It can be used for food preservation, multiple recycling and more full use of packaging bag space.

(2) The unique four side sealing bag design can effectively prevent bursting. The brand-new printing process highlights the pattern design and trademark effect. It can design special trademarks or patterns and play a good anti-counterfeiting effect.

(3) More outstanding products high-grade, unique shelf effect.

(4) The product is rich in samples, resistant to cooking, moisture, good vacuum effect, low oxygen permeability, high sealing performance and good heat sealing performance.

(5) Strong resistance to stimulation, to prevent external lines, especially anti-static and other effective protection products from the impact of the external environment and damage, extend the shelf life.

2. The main products include:

(1) OPP、CPP、PET 、NY、ALand other composite bags;

(2) Empty or multi-color elevator bags and self-adhesive bags such as OPP、CPE、PP、PE、PP、etc;

(3) PE、PP、 PO、 OPP、 CPP and other size express bags, flat pocket accordion bags;

(4) PVC handbag, zipper bag, environmental protection bag and a series of design and manufacturing.

3. Application scope of products with four sides sealed bags:

Four side sealed bags are usually used in developing countries such as central and South Asia. They are mainly used for powder food, dried fruit and tea. Food to be stored is put into the bags. Some foods require to exhaust the air to achieve the functions of hygiene, environmental protection and extending the shelf life. They are widely used in leisure food packaging, powder food packaging, food production enterprise packaging, etc.

There is a big difference between the four side sealing bag and the three side sealing bag, but we can simply understand the source of such a product name in the literal sense. Not only that, in terms of application, there is no big difference between the two products. Like the three side sealing bag, it can also be applied to food bags and cosmetics packaging. The two products are the same in this respect