To ensure a straight edge, you may want to trim about 1/8 to 1/4 inch of fabric from the edge before you begin sewing the rolled hem.
Try using a straw needle in size 11 with some delicate thread. [2] X Research source Thread the needle by inserting the end of the thread through the eye of the needle. Tie a couple of knots at the end of the thread to anchor it in place when you begin sewing.
Some sewers do not recommend knotting the thread to secure it out of concern for the fabric. Instead, they recommend allowing the stitches to hold the thread in place. [4] X Research source If you are concerned about the knot damaging your fabric, then you can try starting the stitch without a knot. You will just need to take care not to let the end of the thread pull through. After several stitches, your thread should be secured.
Keep in mind that pressing with an iron is optional. You can also crease the edge with your fingers or use a coin to crease the edge if ironing is not an option. Be careful when creasing or pressing delicate fabric. You may want to lay a piece of scrap fabric over the fabric and crease or iron through the extra fabric to protect it.
The needle does not need to go all the way through the fabric. It is okay if you just catch a few threads. [7] X Research source
After you go through the top, go back through the bottom again. Repeat this pattern about every 1/4 inch (1cm). Continue to alternate between stitching at the bottom and top of the fold for three to five stitches. These two stitches work together to create the rolled hem.
Tug the thread to tighten the stitches about every three to five stitches. Continue to stitch and tug until your project is complete.
