To test sewing thread, you can perform the following steps:
Knot the thread at one end.
Pull on the thread to see if it breaks or unravels easily.
Check for consistency in color and texture throughout the length of the thread.
Try the thread on a scrap of fabric to see how well it holds up under tension and if it knots or tangles.
Observe the stitch formation and check if it is even and smooth.
This will give you an idea of the quality and strength of the thread.
Zhejiang Doeast Thread Co.,ltd. is China core spun sewing thread manufacturers and core spun sewing thread suppliers. Doeast LAURE is a polyester covered corespun thread used in areas where high productivity and seam security are required. Polyester Corespun with Polyester Wrap provides strength and toughness which withstands the rigours of sewing process, to producing high quality seams.