Introduction to the characteristics and highlights of common packaging bag shapes

There are many types of pouches on the market. Different products require different pouch shapes based on their characteristics. Different pouch designs are based on unique and novel appearance, special functions, and ease of use, etc. It is a comprehensive consideration of various advantages. Below, Shunxingyuan Packaging, a professional flexible packaging manufacturer, will introduce the characteristics of several common pouch shapes, hoping to provide reference for customers who need custom packaging bags but don't know how to choose suitable pouch shapes.

1、 Characteristics of Penguin Pouches

Penguin pouches are a figurative name for stand-up spout pouches. ， It is very easy to print various patterns on the surface, thereby improving the image and popularity of the product, and has a wide range of packaging applications. For example, it can be used to package jelly, jam, beverages, water, medicines, cosmetics, daily necessities, etc.

Convenient to use, the bag is lightweight weighing only a few grams to over twenty grams, easy to open and carry. It can be opened and closed repeatedly through the straw and lid.

Can be used for high-temperature sterilization Because penguin pouches meet the sealing requirements of high-temperature sterilization and the necessary technical requirements for breakage, layering, and drop resistance during high-temperature sterilization, they can be used for packaging products that require high-temperature sterilization.

Wide range of capacities Depending on the application, the capacity can be designed to be 40~1500ml and so on. Very environmentally friendly Compared with metal cans, glass bottles, and plastic bottles, the volume is only 3%~10% of theirs. Penguin pouches are easy to recycle and have low processing costs.

The bag body is soft and can be squeezed The contents can be fully poured out or squeezed out, with basically no waste of contents. There are many types of spouts such as screw-on spouts, pump spouts, and flip-top spouts, etc. enriching the packaging bag shape and function.

2、 Characteristics of Eight-Side Seal Bags

Unique appearance design can stand upright, excellent display effect. If needed, it can be “windowed”, allowing direct viewing of the contents.

Wide range of packaging contents It can be used as outer packaging or in direct contact with the contents. It can package liquids and solids, and can also be used as outer packaging for strip packages.

Adaptable to various material structures It can use plastic-plastic, aluminum-plastic, paper-plastic structures, etc. It can also be fitted with a spout for liquid packaging, and can also be added with a zipper, having the function of a zipper bag.

3、 Characteristics of Three-Side Seal Bags

Three-side seal bags, that is, one side of the packaging bag is directly folded with a composite film, and the other three sides are heat-sealed. In fact, three-side seal bags can be regarded as a supplement to four-side seal bags. Compared with four-side seal bags, its advantages are that it can be unfolded into a three-dimensional bag shape after bagging, with high space utilization, suitable for large-volume packaging needs, and often used for packaging cold medicine and other products. Three-side seal bags are the most common bag-making method. Three-side seal bags have the best airtightness, and vacuum bags usually must use this bag-making method. 。

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