I love things that make my life easier: automatic needle threaders, programmable thermostats, drive-through Starbucks, and when things are color coded! I jumped up and down when Schmetz introduced their color coded machine needles. Most people know that Sulky’s stabilizers are color coded but did you know that Sulky’s thread is color coded? Here is your cheat sheet to know which color means what:
Rayon: 40 wt. Rayon (our most popular thread) has Blue on the end of the king spools, and the writing on the small spools is boring black (yes, that was the first thread type we introduced – who knew we’d have end up having so many!)
30 wt. Rayon has Red on the end of the king spools and the writing on the end of the smaller snap end spools is also Red
Polyester: 40 wt. Poly Deco™ has a Green label on the end of the king spool and the writing on the end of the smaller snap spools is also Green
60 wt. PolyLite™ has Purple writing on the end of the snap end spools (also available in 1,650 yd. MINI-CONES)
Heavy 12 wt. Cotton, both solids and Blendables, have an Orange label on the end of the king spools
Hopefully this helps when sorting through some of our threads! And, of course, they also say the weight on each spool, too. Why is the weight important? Well, you need to choose a needle appropriate to the weight of the thread, or shredding and breakage can occur; and you want the right weight of thread for your fabric/project, too. Oddly, the smaller the number, the heavier the thread. There’s a scientific reason for this that I’ll explain another time.
If you want a PDF of this info you can get it here: Thread Labels