There could be several reasons why the upper thread keeps breaking. … Set the tension to the best thread tension setting or less. Make sure the spool of thread is installed correctly using the correct size spool cap for the size of spool. For details, refer to “Place a spool of thread on a spool pin”.
Why does my thread keep breaking hand sewing?
The thread tension is too tight
When the tension is set too high, the thread is stretched greatly from the spool to the needle, causing great tension in the thread and thus the upper thread breaks during sewing. You can reduce the thread tension to see if it improves. A lower number indicates a lower level of tension.
Why is my thread shredding when I sew?
The most common reason why thread shreds, frays, or breaks at the needle is because the eye is too small to accommodate the thread, causing stress and friction, which results in shredding or breaking the top thread.
What thread tension should I use?
The dial settings run from 0 to 9, so 4.5 is generally the ‘default’ position for normal straight-stitch sewing. This should be suitable for most fabrics. If you are doing a zig-zag stitch, or another stitch that has width, then you may find that the bobbin thread is pulled through to the top.
Why does my bobbin thread keep breaking?
A dirty shuttle race, improper thread routing or incorrect thread tension can break the bobbin thread in a sewing machine. Unplug the sewing machine and check thread routing according to guidelines in your owner’s manual. Reroute the thread correctly if necessary.
What is the solution of needle thread breakage?
Needle Thread Breakage
|Excessive needle heat; groove or eye blocked with melted fabric.||Improve the fabric finish. Change to a better needle, style and finish. Apply needle lubricant via thread. Use a needle cooler.|
|Hook overheating.||Ensure adequate oil supply. Check the needle to hook clearance.|
Why does my metallic thread keep breaking?
The main reason why metallic threads constantly break is that it’s a synthetic thread type. This makes it stiffer especially compared to Rayon, which is noticeably softer to the touch. Polyester is also a synthetic thread, but it is not as stiff as Metallic.
How do I know if my bobbin tension is correct?
The thread should unwind just slightly and the bobbin case should drop an inch or two. If the thread unwinds without resistance and the case slips to the floor, your bobbin tension is too loose. If the bobbin case doesn’t budge, your bobbin tension is too tight.
What tension should I use for cotton?
Cotton requires a moderate tension setting, usually between three and four. Always start adjusting your tension settings with your upper tension.
What is the best stitch length for sewing a straight stitch?
Set the machine for straight stitch, with a stitch length of 3 to 3.5mm. Use a SINGER Topstitching Needle, size 90/14 for medium weight fabrics, or a SINGER Topstitching needle, size 100/16 for heavier fabrics. Sew 1/4″ – 3/8″ from the edge of the fabric.
What tension should I use for thin fabric?
Use size 70/10 for really thin cotton like voile, size 80/12 for light to medium weight cotton, and 90/14 for thick cotton like denim.