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How to distinguish the good or bad of the three-sided zipper bag?
How to distinguish the three-side zipper bag is good or bad?
The use of zipper bags is now very common, because the unique zipper bag closure design makes the entire bag not only beautiful but also reproducible, no matter what kind of product is installed, it can protect the inside of the bag. Among the many zipper bags, the three-side zipper bag is also used for food and other products, so his quality is very important. Let's take a look at how to distinguish it.
1. Appreciate the appearance of the vacuum zipper bag. Generally, a good quality vacuum bag looks clean, tidy and flawless. The vacuum packaging bag is evenly cut. If there is printing, the printing has no ghosting, and the color is rich and colorful without color difference. If it is in stock, you can directly look at the finished product, but if it is a customized product, you can ask the packaging bag manufacturer to send samples and use the samples to understand the quality of the vacuum packaging bags produced by the factory.
2. Check for air leaks. After getting the customer sample, you can try it out and check for leaks. Of course, if the customized product is handed, it is necessary to immediately check whether the vacuum bag is leaking, whether it can be vacuumed. Practice is the only standard for detecting truth. Whether it can be vacuum packed, it can be seen at a glance through trial installation. The verbal commitment of the salesperson.
3. You can visit the factory. With the continuous updating and introduction of advanced production equipment, the quality of its production equipment is also an important criterion for its quality. For customers who are in the distance, they can go to the packaging manufacturers to see the production equipment and production scale. If it is a long-distance customer, it is not realistic to visit the factory. You can go to see the official website. In general, the official website will also have relevant pictures for customers to view and browse.