What is a three-side-sealed aluminum foil bag? What are its characteristics and uses?

Three-side seal Aluminum foil Bags may sound like a very unfamiliar product, but it is actually closely related to our lives, because our daily snack packaging bags face mask packaging bags 、 food packaging bags etc. are all packaged in this way. This packaging method not only prevents product spoilage, but is also beautiful, making people have a special desire to own it ， It is very popular with consumers. Many people have seen three-side sealed bags, but they don't know much about them. What kind of packaging bag is called a three-side sealed bag? What are its characteristics and uses? Below, Shunxingyuan Packaging, a professional flexible packaging manufacturer, will briefly introduce the three-side sealed aluminum foil bag.

Three-side sealed aluminum foil bag Overview:
Three-side seal Aluminum foil Bag, that is, three-side sealing, leaving only one opening for users to load products. Three-side sealed bags are the most common bag making method. The airtightness of three-side sealed bags is strong vacuum vacuum packaging bags usually must use this bag making method.
Common materials for three-side sealed bags:
PET, CPE, CPP, OPP, PA, AL, KPET, etc.
Three-side seal bags applicable main products and characteristics:

Plastic food packaging bags, vacuum bags, rice bags, stand-up pouches, zipper bags, aluminum foil bags, tea bags, candy bags, powder bags, rice bags, cosmetic bags, face mask and eye mask bags 、 vacuum bags, paper-plastic bags, shaped bags, anti-static bags. Composite three-side seal Aluminum foil bags have good barrier properties, moisture resistance, good low heat sealing, high transparency, and can also be printed in color from 1 to 9 colors. Commonly used in daily necessities composite packaging bags, cosmetics composite packaging bags, toys composite packaging bags, gifts composite packaging bags, hardware composite packaging bags, clothing composite packaging bags, shopping mall composite packaging bags, electronic product composite packaging bags, jewelry composite packaging bags, sports equipment composite packaging bags, etc. products packaging bags 。
Equipment standards for three-side sealed bags: Aluminum foil Printing equipment: gravure (commonly known as copperplate) printing, fully computer-controlled printing machine, can print

1-8 colors. Compounding equipment: Fully computer-controlled compounding equipment, multi-layer compounding is possible.
The three-side sealing bagging machine has unwinding tension, vertical sealing tension, horizontal sealing tension and bottom material tension.
Unwinding tension is a process parameter that controls the tightness of the film unwinding. It is usually required that the unwound film can run smoothly with small tension during production. When setting, adjust according to the tightness and flatness of the material The longitudinal sealing tension control section is from the unwinding traction roller to the material between the traction roller after the longitudinal sealing. It passes through two 45° angle turning plates, photoelectric correction detection head, front and rear left and right adjustment roller groups and heat sealing, cooling knife. The tension adjustment is achieved by adjusting the pressure of the tension lever on the material. When the tension is too large, the material runs more smoothly, but the friction between the material and the equipment increases. Scratches are easy to occur. And it will affect the stability of the subsequent cutting, punching, and heat sealing positions. 45°角的转向板，光电纠偏检测头，前后左右对正调节辊组及热封、冷却刀。张力的调节通过调节张力摆杆对材料的压力大小来实现。当张力过大时，岁材料行走较平稳，但材料与设备接触处产生摩擦增大。易发生刮花现象。且会影响后面部分***裁切、冲切、热封位置的稳定性。

Dongguan Shunxingyuan Packaging Products Co., Ltd. is a professional flexible packaging manufacturer with strong R&D, design, and production capabilities. Its products are widely used in clothing and apparel, food, chemical, home gifts, hardware and electronics industries. Advanced production equipment with 19 years of rich experience in flexible packaging production. Our customers are all over many countries around the world, including famous brands such as ADIDAS, AAPE, IZZUE, IT and BRAINERD. Our company specializes in the production and processing of various plastic packaging bags and composite plastic packaging bags, high-end food plastic packaging bags. 135-4929-7179.

Mainly include:

1. Food packaging bag series: Food bags, stand-up food packaging bags, food plastic packaging bags, food color packaging bags, food packaging bags plastic, dried fruit food packaging bags, transparent food packaging bags, paper food packaging bags,

pet food packaging bags, small food packaging bags, vacuum food packaging bags, tea bags, coffee bags, candy bags, shopping bags, etc.

2. Aluminum foil packaging bag series: Aluminum foil bags, aluminum-plated bags, vacuum bags, retort pouches, center-sealed bags, three-side sealed bags, etc.

3. Stand-up pouch zipper bag series: Stand-up pouches, yin-yang bags, stand-up zipper bags, stand-up self-sealing bags, etc.

4. Clothing bag series: Aluminum-plated bags, aluminum foil bags, transparent bags, plastic bags, etc.

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