Container bag application field
As a simple packaging material, whether it is at a low temperature of 50 degrees below zero or at a high temperature of 100 degrees above zero, it will maintain good stability and will not change its nature because of changes in external factors.
The technical requirements of sewing container bags
1. The tensile strength of the bottom seam must reach more than 42% of the strength of the substrate.
2. Container bag requirements flat and straight, no obvious lack of less dimension, no obvious defects, the surface is not allowed to have obvious stains, the bag body printing pattern is clear, accurate position.
3. The tensile strength of the side seam must reach more than 67% of the strength of the substrate.
4. Sewing requirements flat and straight, no needle break, no floating line, hanging needle, needle and drop needle back to not less than three needles, the length of the sling to be equal, lap seam to be uniform and straight.