Single folded single sewing
At the opening of the pp woven bag, fold the bag opening backward once to form a double-layer folded edge. This folded edge can be uniform or the width can be adjusted as needed. On the folded bag mouth, use sewing machine to sew along the folded edge
The stitch length and stitches need to be uniform to ensure the firmness and beauty of the closure. During the sewing process, it is necessary to pay attention to controlling the tension of the suture to avoid deformation or damage of 50lb PP woven bag during the sewing process
Single folded double sewing
Single fold double sewing is similar to Single folded sewing, but the sewing lines is two in one time to finish the sewing work. It increases the load-bearing strength for PP woven bag
Top hemmed:
Top hemming is some treatment applied to the top of a woven pp bag during production. It usually involves folding inward and sewing the fabric at the cut edge of the bag opening to form a solid edge. The plain pp woven bag without lamination mostly needs this treatment to avoid loose yarn. Also, by reinforcing the cut edge, the woven pp bag opening is stronger and can withstand greater weight and tension.
Easy open sewing
Block bottom
Valve
Ultra sonic sewing
Sewing line with heal seal tape.
