Production standards for stretch wrap packaging film

Quality requirements: (very important)
1. There should be no black impurities, the mold head should be washed clean, and there should be no burnt plastic falling in. Anything visible to the naked eye must be removed.
2. The paper tube must be aligned, not longer on one side and shorter on the other. Leave blank spaces on both sides with a standard of 1cm.
3. When packing, pay attention to protecting the edges from collision, which may cause edge breakage and quality problems. There should be no burrs.
4. Try to minimize surface wrinkles at both ends and white lines that are tightly pressed in the middle.
5. Cut the broken edges neatly, and if the cuts are uneven, they cannot be shipped as finished products. When making goods, both ends must be rolled neatly, not too much on one side and too little on the other.