What are the common types of food packaging bags?
Many people are familiar with food packaging bags, but they are not familiar with the shape of food packaging bags. So what are the types of food packaging bags? Next, Dongguan City Beite packaging for you to introduce several common composite food packaging bag shape.
1. The three side sealing bag has two side seams and one top edge seam bag, and its bottom edge is formed by horizontal folding film. The bags can be folded or not, and when they have white edges, they can stand upright on the shelf. One of the deformation of three side sealing bag is to fold the original edge to form the bottom edge, which is realized by bonding. In this way, it is essentially a four side sealing bag.
2. The back sealed bags are also called pillow bags. The bags have back, upper and lower seams, which make them have the shape of pillows. Many small food bags are usually packed in pillow bags. The back seam of the pillow bag forms a fish fin. In this structure, the inner layers of the film are sealed together, and the seam protrudes from the back of the packaged bag. Another sealing form is overlapped sealing. The inner layer of one side is bonded with the outer layer of the other side to form a flat sealing. As the "fin" shape seal is relatively strong, and as long as the inner layer of the packaging material is heat sealed, it is widely used. The "overlapping" seal is relatively weak, and requires the inner and outer layers of the bag to be the heat sealing material, so it is not used too much. The top seal and the bottom seal are bonded by the inner layer of the bag.
3. Folding bag is also called folding bag or organ bag. It is the deformation of back sealing bag. It is the folding of both sides of bag to form M type. If the M-type is asymmetric, it is also called trapezoidal hem bag.
4. The four side sealing bag is usually made by sealing the top, two sides and the bottom edge of two kinds of materials. Compared with the bag mentioned before, it is possible to use two different plastic resin materials. If they can be bonded to each other, they can be made into four side sealing bags with front bonding. Four sides of the bag can be made into various shapes, such as heart-shaped or oval.
5. The zipper bag is provided with an easy opening zipper bag on the three side sealing bag and the main body bag.
The above article about "which types of food packaging bags are divided into" is organized by Dongguan Beite packaging. If you want to know more about packaging, please check our website Dongguan Beite packaging materials Co., Ltd. or conduct telephone or online consultation. Dongguan Beite packaging specializes in the production of food packaging bags, product packaging bags, shopping bags, gift bags, medical packaging bags, etc. The company has a number of professional and technical personnel. With advanced equipment, rich experience, combined with the economic affordability of domestic users, we continue to launch products with excellent quality and more reasonable cost performance.
