Whether you’re sewing garments or accessories on a regular sewing machine or creating pretty machine embroidery embellishments on those items, a stitch is a stitch and every stitch requires a bobbin thread to complete it.

Though it may not seem so, even designs you stitch with an embroidery machine like the SWF MAS 12-Needle model need actual bobbin thread in the bottom of the machine and for more reasons than you might think.

Read on to learn about the importance of bobbin thread with embroidery machines and why it’s best to use it as opposed to any other kind of bottom thread!

What Is Bobbin Thread Anyway?

Bobbin thread is the thread used in the bobbin of any sewing or embroidery machine.

When hooked into the top thread, bobbin thread plays a crucial role in creating a complete stitch that stays in the fabric because without it, the top threads would simply pull right out.

Typically, bobbin thread used for sewing is the same weight as the top thread since those threads are used to sew two pieces of fabric together and their equal strength is critical for a strong seam.

In embroidery, most people use a lighter weight bobbin thread because although it still serves the same purpose to create a full stitch that stays in the fabric, there’s no seam being made so there’s no reason to use the same weight as the top thread.

Why Is Bobbin Thread So Important for Machine Embroidery?

When embellishing fabric with embroidery done on an SWF MAS 12-Needle machine, bobbin thread serves two important purposes other than being one half of a complete stitch:

  • Fills Without Bulk - The back or bobbin thread fills in the back side of the embroidery design so all the stitches stay secure on the right side of the design. Although it’s perfectly fine to use the same top thread as bobbin filler thread, bobbin thread is a finer thread than the regular embroidery thread and creates less stitch bulk so the design is smoother and more precise.

  • Less Expensive Than Embroidery Thread - Again, although it’s perfectly acceptable to use top thread for bobbin thread, embroidery top thread is a lot more expensive than bobbin thread and you’ll save a lot of money on thread by sticking with bobbin thread for the back side of the design.

How Does Bobbin Thread for Embroidery Come?

Fortunately for those points mentioned above, bobbin thread for machine embroidery comes in a variety of weights and colors so you can choose one that will compliment your design to make it look fairly neat, even on the back.

Bobbin threads are available in 60 weight which is the standard, finer thread used for most embroidery and 40 weight which is heavier.

Finer 60 weight thread is better for denser designs that have more stitches as it keeps bulk down and 40 weight is great when you want a stronger stitch for a less dense design where bulk won’t be an issue.&

Bobbin threads are most commonly sold and used in black and white although they can also be found in a rainbow of colors to match your embroidery designs.

When you want the front and back of the design to blend so the back looks less conspicuous, choose a color that fits the design and blends well.

Bobbin Thread - A Secure Finish For Machine Embroidery

A common question asked by those new to embroidering with sewing/embroidery combo machines or machines like the SWF MAS 12-Needle is what the purpose of the bobbin thread is and whether any thread will do.

Now you know the answers to those questions!

Although you can technically use any lightweight sewing thread in the bobbin of your embroidery machine, it’s preferable to use a 60 or 40 weight embroidery bobbin thread in a color that best suits your design.

Matching a good bobbin fill thread with whatever luxurious top thread you choose, your embroidery designs will come out looking amazing!