Cause. Tension pucker is caused while sewing with too much tension, thereby causing a stretch in the thread. After sewing, the thread relaxes. As it attempts to recover its original length, it gathers up the seam, causing the pucker, which cannot be immediately seen; and may be noticeable at a later stage.

How do you fix puckered fabric?

The best way to fix a puckered seam, start by adjust the tension on upper and lower thread appropriately. This will help understand the content and weight of the fabric that you are using. Next, use a correct thread with right needle size and match the thread with a needle depending on the fabric used.

What does it mean if fabric puckers?

Seam puckering refers to the gathering of a seam during sewing, after sewing, or after laundering, causing an unacceptable seam appearance. Seam puckering is more common on woven fabrics than knits; and it is prominent on tightly woven fabrics.