Inexpensive polyester threads are not recommended because they can actually cut the fibers of cotton fabrics.
Best thread for machine piecing quilts.
Generally speaking cotton fibers are also softer and more pliable than most other fibers.
Most quilters prefer cotton thread when it comes to piecing the term piecing is used more than sewing because the sewist is piecing together their quilt blocks because cotton fibers have a high heat tolerance and is therefore iron safe on high heat.
A cream or neutral colour and a light grey.
Use the best quality thread you can find.
40 weight cotton aurifil s thread weight is determined by something called number english or ne.
Ne is a measure of linear density and refers to the number of hanks of skein material that weigh 1 pound.
It s the thread shown in the big cone and is a great neutral for piecing.
You should be able to use two colours of piecing thread.
Inferior cotton threads create a lot of lint especially when machine sewing.
All cotton threads are readily available and are the best choice for piecing our quilting fabrics.
I use the cream thread for light fabrics and the grey for darker ones.
That means it s best to avoid polyester threads and overly strong cotton threads.