If you’ve long admired those form-fitting elasticized dresses and wondered how it was done, the answer is easy—check out elastic thread.

Elastic thread, a fine stretchy strand, is available in black and white, and it’s thicker than regular sewing thread. Do not confuse elastic thread with elastic cord—the latter is designed to be sewn over, not used in the bobbin.

Pattern/Fabric Selection
If your pattern calls for other types of elastic, you’re likely set already, but if there’s no hint of puckering up on the original design, it’s best to choose a different pattern that has fullness built into it for the shirring. Elastic thread will draw up an area about 1/3 of its original size, so fabric has to be allowed for that shrinkage.
Shirring can be used on entire bodice areas, waistlines, cuffs, shoulder areas and necklines, or as a band along upper arm areas to shape a full sleeve.
This shirring technique works best on lightweight fabrics—the lighter, the better fullness you’ll get. Look for voile, lawn, lightweight silks, gauze, etc.
Pucker up
Hand wind the elastic thread on the machine bobbin without stretching it. Avoid the temptation to use the bobbin winder on your machine, as that will put unneeded tension on the thread during the winding process.
Thread the elastic through the bobbin tension like normal thread. No need to adjust the bobbin tension.
Thread the top of the machine with regular sewing thread in a color that matches the project. Pull both thread ends under the presser foot before sewing.
Using a removable marker, draw parallel lines on the fabric right side about an 1/4”-1/2” apart and extending into the seam allowances on both ends. At the same time, draw the same onto some fabric scraps for testing. If you’re working with a stripe, plaid or check, use the patterning lines for spacing the stitching rows.
Testing 1, 2, 3
Set the machine for a slightly longer than average straight (4mm). Sew along a marked line (without backtacking), and see how much the fabric draws up. Repeat for several parallel lines, as you won’t see much shirring until you’ve stitched multiple rows. If it’s not much, try tightening the top thread tension and restitch. You may need several adjustments to get the finished look you want.
Note that stitching multiple rows with elastic thread are essential to judging “the look.”

The Real Deal
Once you get the look you like, stitch on the marked lines on your actual project. It’s important that you’re always stitching on flat fabric, so hold the fabric taut as you stitching to avoid stitching over any already shirred areas.
If you’re still not getting the amount of puckering you want, grab ahold of the elastic thread ends and pull up slightly to adjust the fullness to the size needed.
If you run out of elastic mid-way across your shirring area, leave a tail of top thread, pull it to the back and tie off with the elastic thread end. Then reload a new bobbin and start again where you left off, tying threads together at the beginning area.
Finishing up
Once all your shirring rows are stitched, adjust the fullness as needed for a consistent look. When you have the look and fit you want, tie off all the elastic thread ends securely within the seam allowance. For a bit of extra security, thread the machine with regular thread and stitch across the ends within the seam allowance.
To set the fullness, lightly steam-press the shirred area. Simply hover the iron over the stitched area—do not put the iron on the fullness folds.

~Linda Griepentrog is the owner of G Wiz Creative Services and she does writing, editing and designing for companies in the sewing, crafting and quilting industries. In addition, she escorts fabric shopping tours to Hong Kong. She lives at the Oregon Coast with her husband Keith, and three dogs, Yohnuh, Abby, and Lizzie. Contact her at gwizdesigns@aol.com.






















