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What are the materials of the vacuum bag heat seal layer? (2)
29-06-2020
1. Cover film Most of the jelly, cold drinks, yogurt, fruit milk and other foods available on the market are packed in plastic cups and bottles, and the cups and bottles are sealed with a film. Some requirements can be u...
What are the common types of flexible packaging bags? (1)
06-07-2020
1. Three-side sealing bag The three-side sealing bag has two side seams and a top seam bag, and the bottom edge is formed by horizontally folding the film. These bags can be folded or not, and when folded, they can stand...
What are the common types of flexible packaging bags? (2)
14-07-2020
1. Four sides sealing bag The four-side sealing bag is usually made by the top, two sides and bottom sealing of two (roll) materials. Compared with the bag mentioned before, it is possible to use two different plastic re...
What are the precautions for nylon vacuum bag making operations? (1)
20-07-2020
1. Nylon vacuum bag making must first obtain the production process sheet and samples and conduct mutual inspection of the semi-finished composite film to be produced. 2. Check whether the transmission parts, safety devi...
What are the precautions for nylon vacuum bag making operations? (2)
27-07-2020
1. After the temperature reaches the normal set value, turn on the machine and compare with the sample bag to check the quality indicators of the product (sealing position size, sealing knife width, sealing strength, pun...
How to prevent bubbles from appearing when the aluminum foil bag is dry laminated? (1)
03-08-2020
During dry compounding, there are many reasons for bubbles in aluminum foil bags, such as film and ink. Printing process, adhesives, composite process, laminating machine tooling, and workshop environment are all "culpri...

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