FAQ 1. The sealing part between the zipper and the bag body is uneven; 2. Local delamination occurs at the part where the zipper is sealed with the bag body; 3. “Dead pleats” appear at the intersection of the two ends of the zipper and the edge seal of the bag; 4. Local delamination occurs […]

The shrinkage rate of the material refers to the percentage of the difference between the size of the plastic bag at the molding temperature and the size after it is taken out of the mold and cooled to room temperature. It reflects the extent to which the plastic part is reduced in size after it […]

There are two kinds of plastic bags (structure: synthetic resin, plasticizer, stabilizer, pigment) that are common in the market, one is a new plastic bag, and the other is a recycled plastic bag. The difference between them is the raw material. Different, the former is made of new polyethylene plastic granules, which are characterized by […]

In the packaging industry, packaging materials greatly affect the performance of packaging bags. Whether the packaging bags are well done or not, in addition to design, the structure of packaging bags and the materials used are also very important. CPP is one of the most common packaging materials. , what are its features and usage […]