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:
Eco Friendly Plastic Mylar Pouch Stand Up 50ml 100ml 200ml 250ml Custom Aluminum Spout Pouch
flexible packaging film structure wholesale.Real time strategy for packaging bags
Popular recommendation
Aluminum foil bag
Custom Laminated Printing Juice Bag Liquid Packaging Stand Up Plastic Water Spout Pouch
Wholesale Price Biodegradable Aluminum 3 Three Side Seal High Temperature Microwavable Food Retort S
bag in box packaging Solution
pouch with handle Production
kraft paper spout pouch manufacture
spout pouch packaging bags Solution
bag in box Vendor
stand up coffee bag with zipper
smart food Snack food bag Production
Retort bags, freeze-resistant vacuum bags
Development prospect of packaging bags
Packaging airbag inflation
Introduction to Barcodes for Packaging Bags
aluminum foil bags for cooking manufacture.Future development trend of facial mask packaging bags
There will be several "small holes" on the top of the coffee pouch bags, so what is the my
The selection details of paper bag making are important
The use of aluminum foil bags
kraft paper pouch with zip lock.Analyze the safety issues of food packaging bags
The design of rice packaging bags should focus on brand concept and color positioning
The quality of sterile liquid packaging bags is affected by the following factors.spout pouch manufa
What are the requirements for the performance of sterile packaging bags?
Overview of the production environment and process for sterile packaging bags
Why nylon vacuum packaging bags are favored by the food packaging industry
Introduction to the performance advantages and usage range of self-supporting packaging bags
Why is the food packaging bag perforated?
Tell you the reasons and solutions for the deformation of the food packaging bag.PET food bag wholes
Structural composition of Spout pouch
Food packaging bag sanitary performance.food eco friendly packaging
Packaging waste.biodegradable spout pouches