Tel: +86 188 2689 9458
source:other news release time:2022-11-24 Hits:
Trilateral pocket
The trilateral seal pocket has two side seams and one top seam pocket, the bottom of which is formed by folding the film horizontally. These bags can be folded or not, and when they are folded, they can stand upright on the shelf.
One of the variants of a three-sided pocket is to fold the original edge to form a bottom edge and glue it so that it essentially becomes a four-sided pocket.
02
Backpack
Backpacks are also called pillow-shaped bags. They have seams at the back, top and bottom, making them pillow-shaped. Many snack bags are often packed in pillow-shaped bags. The back seams of the pillow-shaped bag form a fishfin-like encapsulation in which the inner layers of the film are placed together and the seams protrude from behind the encapsulated bag. The other type of seal overlaps, where the inner layer of one side is bonded to the outer layer of the other side to form a flat seal. Because the "fishfin" seal is strong and can be heat sealed as long as the inner layer of the packaging material, it is widely used. The "overlap" seal is relatively not strong and requires the inside and outside of the bag to be heat-sealed, so it is not used much. The top and bottom seals are glued together by the inner material of the bag.
03
Folded bag
Folded bags, also known as fold-in bags and organ bags, are the deformation of the back pack. They are folded in on both sides of the bag to form an M-shaped bag. If the M-shape is not symmetrical, it is also called a trapezoidal folded bag.
04
Four-sided bag
Four-sided pockets are usually made of top, sides and bottom seals of two (rolled) materials. Compared with the previously mentioned bags, it is possible to use two different types of plastic resin materials to make four-sided front-bonded pockets if they can be bonded to each other. Four-sided pockets can be made into various shapes, such as heart or oval.
05
Zipper bag
Read recommendations:
Custom Print Side Gusset Coffee Pouch Black Matte Coffee Beans Packaging With Valve
spout pouch machine Production
bag for food packaging.What are the application scope of composite packaging bags
Popular recommendation
Pouch with handle
Wholesale High Barrier Plastic Stand Up Flat Bottom Pet Dog Food Packaging Bag
Wholesale Price Biodegradable Aluminum 3 Three Side Seal High Temperature Microwavable Food Retort S
spout pouch bags
bag in box packaging supplier
wine bag in box Factory
Flexible Packaging Film Factory
spout pouch machine Processing
spout pouch machine sales
Spout pouch flexibility
What are the differences between polyester pet vacuum bag and nylon pa vacuum bag
How to use the air hole on the coffee bag
Packaging bag development history
Various common sense of plastic packaging bags.valve plastic coffee bag
How To Seal A Spout Pouch- The Complete Guide
How much do you know about PE bag blowing film?properties of flexible packaging films distributors
Introduction to packaging methods for containerized liquids
Bag-In-Box: Revolutionizing Liquid Packaging with Innovative Paper Bags
How to test the packaging bag
What are the advantages of octagonal sealed packaging bags
How to remove the rice packaging bag?
Food packaging bags.printed snack food bags manufacturer
What are the classifications of plastic packaging
Packaging bag manufacturer introduces production details of Vacuum packing bags
Why do Vacuum packing bags wrinkle?food vacuum bag
Discussion on the Use of Fruit Juice Bags in Beverage Packaging.valve plastic coffee bag
paper snack food bag supplier.Talking about the Safety of Using Food Packaging Bags
How much do you know about the characteristics and use of aluminum foil packaging bags?gusset alumin
What is food packaging bag qs?
Test standards for frozen food packaging