Top-line packagingTel: +86 188 2689 9458

Top-line packagingEmail: info@toplinepackaging.com

Top-line packaging
Top-line packaging

Common soft-packed bags

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 

pet food bag clip custom

spout pouch machine Production

bag for food packaging.What are the application scope of composite packaging bags

Can plastic packaging add value to goods?

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

Share:

Email

Wechat Whatsapp

Leave Your Message