How can I reduce the hem rolling (tunnelling)?
Increasing the amount of thread in a seam will improve its appearance; this can be done by loosening the tension on the looper and needle by using a sewing machine that adds additional thread for the looper. Sewing with both needles on two plys of fabric will also improve appearance.
How can I reduce impression marks that show through from the overlock stitching when ironing side seams / inseams?
The use of a fine Gral thread or a texturised polyester thread will improve appearance.
How can I reduce fabric pucker problems?
lease review our Online Training page for Seam Puckering presentation headed under Solutions/Online Training/Seam Puckering.