Why Does Sewing Machine Needle Keep Unthreading?


A sewing machine needle unthreading is usually caused by the fabric not being caught in the bobbin thread.

This can be due to a number of reasons such as the fabric being too thick or dense the wrong type of fabric for the machine or the needle is inserted incorrectly.

If you’re having trouble getting your fabric to catch in the bobbin thread try using a smaller needle (thinner needles work better with less-dense fabrics) changing to a different type of fabric or adjusting the tension on your machine.

Also make sure that you’re inserting the needle into the fabric correctly – it should go in perpendicular to the grain of the cloth. If it’s going in at an angle it will be more difficult for the bobbin thread to catch.

Finally if you’re still having trouble it might be time to take your machine in for a tune-up.

A sewing machine that isn’t properly maintained can have all sorts of problems including needle unthreading.

Why Do I Have To Keep Threading My Sewing Machine?

It is important to keep your sewing machine threaded because it helps the machine sew more evenly.

When the thread isn’t threaded correctly it can cause the machine to bunch up the fabric or skip stitches which will create an uneven stitch and can cause the fabric to tear.

To keep your sewing machine threaded correctly follow these steps:

  1. Make sure that the needle is in the down position.
  2. Raise the presser foot and remove any fabric from below the needle.
  3. Unspool a few inches of thread from the spool and hold it against the right side of the machine as you re-thread it through the eye of the needle. 
  4. Guide the thread all around the tension discs (usually found near the spool) in a clockwise direction.
  5. Continue threading the machine by following the path marked on the machine (this is usually a yellow or white decal).

    The thread should go through the take-up lever and around the tension spring before finally passing through the needle again.

  6. Raise the presser foot and pull on the thread to make sure that it’s snug against the fabric before you start sewing.

If you’re still having trouble consult your sewing machine’s manual or take it to a professional for help.