Process requirements for coated non-woven bags:
1. When laminating the film, pay attention to whether there is blistering and weak composite.
2. Cutting: Each set of plates has a white line, and the error should not exceed 1-5 mm during cutting.
3. The small wrinkle area of each piece cannot go over 2 places.
4. When making a plate, there are 2 white squares at both ends of each set of plates, which are where the straps are installed.
Carrying straps: When ironing and sewing the lifting straps, they must be placed correctly, the error is 1-2 mm. There is no white box when making ordinary non-woven bags, but a standard must be found. The lifting straps must be consistent. The length of the strap is 45 cm, and the cloth is not less than 65 grams.
5. Running head: the error of 3 cm folded edge shall not exceed 1-2 mm, and the upper thread distance shall be 2 mm from the folded edge, and no jumpers are allowed. The stitches must be stitched once at the beginning of the sewing and the upper belt. The stitch distance of the running head is 1 cm. It is 2.5 stitches.
6. Packing: When wrapping, the stitch distance on the rim is 1 cm and 3 stitches, the thread spacing when enclosing the rim is 1-2 mm, and the gram weight of the rim cloth is 65-70 grams. For wrinkles, the color of the wall should be the same as the color of the front of the bag, and the thread should be the same as the color of the wall. There should be no openings. After closing the bag, check it again, and cut off any thread left.
7. Folding: This part of stacking is very important. For standard inspectors, check whether there is any thread, whether there is a break in the edge of the wrapping, whether the strap is upright, all the above standards must be checked, and whether the stack can be up and down. Alignment, the error does not exceed 5 mm.
Summary: From the beginning to the end, each link is very important. The next process is the inspector of the previous process. The next process checks the previous process for faults and reminds the previous process to pay attention and rework to avoid a series of Poor faults that cause losses.
