Course spirality is a very common inherent problem in plain knitted fabrics. Some of the practical problems arising out of the loop spirality in knitted garments are displacement or shifting of seams, mismatched patterns, and sewing difficulties. These problems are often corrected by finishing steps such as setting/treatment with resins, heat, and steam so that wale lines are perpendicular to the course lines. Such a setting is often not stable, and after repeated washing cycles, skewing of the wales normally re-occurs.