Common problems and solutions for zipper bags, stay away from inferior products
Release time:2019-12-27
Zipper bags often exhibit phenomena such as uneven heat-sealed parts, delamination, dead folds, powder, difficulty opening, and opacity, which become challenges in zipper bag quality management and seriously affect the packaging product's effect. To address these issues, Shunxingyuan Packaging, a professional flexible packaging manufacturer, provides solutions based on its production experience, hoping to help customers stay away from inferior products and order high-quality zipper bags.
I. Common Problems
Uneven heat-sealed area between the zipper and the bag body;
Partial delamination occurring in the heat-sealed area between the zipper and the bag body;
Dead folds appearing at the intersection of both ends of the zipper and the bag's side seal;
Partial delamination occurring at the intersection of both ends of the zipper and the bag's side seal;
Easy-open zipper bags have powder;
Powder-free zipper bags are difficult to open;
Poor transparency of zipper bags;
II. Solutions
After comparative observation and testing of various types of zipper bags with defects by professional flexible packaging manufacturer Shunxingyuan Packaging, the above problems should be solved as follows:
The heat shrinkage rate of the zipper itself is greater than that of the composite film;
The melting point of the zipper itself is greater than or equal to the melting point of the heat-sealable layer film;
The cross-section of the male and female buckles on the zipper is too large;
The design of the local heat-sealing bar on the zipper bag making machine is unreasonable; it is recommended to use an ultrasonic heat-sealing device;
The design of the local heat-sealing head is unreasonable (too small);
Insufficient output power or pressure of the ultrasonic heat-sealing device;
Insufficient heat resistance of the ink layer;
Shunxingyuan Packaging, by adjusting raw material formulations and optimizing production processes, has successfully enabled PE garment bags to possess industry advantages such as high transparency, no powder, and easy opening. Furthermore, the PE garment bags produced by Shunxingyuan Packaging appear pure, free from any impurities, wrinkles, or stains. Their surface feels smooth, delicate, and has extremely strong toughness. Additionally, Shunxingyuan Packaging's PE garment bag manufacturing process is more advanced, allowing for precise quality control and enabling efficient production;
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