Tel: +86 188 2689 9458
source:other news release time:2023-10-19 Hits:
The three sided sealing bag has two side seams and one top edge seam, and its bottom edge is composed of horizontally folded film. This type of bag can be folded or not, and when folded, they can stand upright on a shelf. One type of deformation of a three sided sealing bag is to use adhesive bonding to complete the bottom edge that was originally folded, essentially turning it into a four sided sealing bag.
Back sealed bags, also known as pillow shaped bags, have back, top, and bottom seams, giving them the shape of a pillow. Many small food bags are often packaged in pillow shaped bags. The back seam of the pillow shaped bag forms a fish fin shaped sealing bag, in which the inner layers of the film are placed together to seal, and the seam protrudes from behind the sealed bag.
Another form of sealing is stacked sealing, where the inner layer on one side is bonded to the outer layer on the other side to form a flat seal. Because the "fish fin" shaped seal is relatively robust and only requires the inner layer of the packaging material to be heat sealed, it is widely used. However, the "stack" shaped seal is relatively less robust and requires both the inner and outer layers of the bag to be heat sealed, so it is not widely used.
Folded edge bags, also known as folding top bags or organ bags, are a deformation of the back sealing bag, where the two ends of the bag are folded in to form an M-shape. If the M-shaped bag is asymmetrical, it is also known as a trapezoidal folded edge bag. A four sided sealing bag is usually made by sealing the top, sides, and bottom edges of two types of materials. Compared with the previously mentioned bags, it is possible to use two different types of plastic resin materials. If they can be bonded to each other, a four sided sealing bag with front bonding can be made. Four sided sealing bags can be made into various shapes, such as hearts or ellipses.
Read recommendations:
zip lock bag for coffee Manufacturing
Causes and solutions for the difficulty of aluminum foil bags.aluminum foil bag large Production
Popular recommendation
Custom Portable Reusable Drink Bags Stand Up Plastic Spout Pouches For Beverages Liquid Packaging
3L 5L Bag-In-Box Wine Dispenser Coffee/ Juice/ Water/ Oil Bag-In-Box With Valve
125g 250g 500g 1kg Aluminum Foil Flat Bottom Coffee Bean Bags With Valve
spout pouch bag wholesale
juice bag in box wholesale
custom printed spout pouches
valve for coffee bag
Flexible packaging film roll Packaging Manufacturing
mulberry mini pouch with handle custom
sunbean beaten coffee pouch
How to inflate the packaging bag of puffed food?
Wine box packaging customization process and specific production process
What should be paid attention to in the customized production of rice packaging bags.super pouch too
The design of rice packaging bags should focus on brand concept and color positioning
How to distinguish the quality of OPP card head plastic bag?
How to inspect the appearance of vacuum bag?
printed snack food bags price!Introduction to the Function of Food Packaging Bags
The use of aluminum foil bags
Sterilization classification and principle of sterile bags
What is a composite bag
The price of fruit juice bags is influenced by the following factors.beverage bag manufacturers
What are the causes of safety hazards of vacuum packaging bags.zipper vacuum sealer bag distributors
Development trend of plastic packaging industry in recent years
The advantages and applications of Spout POUCHES
The treatment of packing bag sealing problem
Modified atmosphere anti mildew packaging technology
Talk for you to introduce Spout Pouch Packaging
Principles and how to use medical sterilization packaging bags.coffee pouch with valve packaging
What are the categories of KRAFT PAPER POUCHES?stand up ziplock kraft paper pouch
What is coffee bag packing?