Sunflower Seams: How to Flatlock Seamlessly with Your Serger

How to Flatlock Seamlessly with Your Serger

Hello Sewing Friends!  Tamar here from Tamar Hope Designs, on the blog for the next serger series post!  We have been learning so many fun skills on our sergers this year.  We have covered the basics, blind hems, gathering, and rolled hems.  Today I’m going to be talking about flatlock stitching using your serger.  The flatlock stitch is a fun one.  It’s often found on athletic wear and shows up as a decorative stitch on the outside of the garment.  

Sunflower Seams: How to Flatlock Seamlessly with Your Serger

It took me years to try this stitch, because I assumed that it would be hard.  Once I finally gave it a try, I was surprised to find out that it’s super easy and gives a fun unique finish.  It also allows you to use your serger to hem which is a great bonus!  I used the flatlock stitch to sew everything but the zipper on this Plumeria, and I will show you how! 

Sunflower Seams: How to Flatlock Seamlessly with Your Serger

Set up your machine

The first step is to set up your machine for a flatlock stitch.  Decide if you want a wide stitch or a narrow stitch.  I used the wide stitch.  For a wide stitch, remove the right needle.  For a narrow stitch, remove the left needle.

Now, you just need to adjust the tensions and you’re ready to go.  I would recommend digging out your manual to get the settings that work best for your machine.  My machine works best with the following tensions.  Needle 1, upperlooper 4.5, lowerlooper 7.5. 

Sunflower Seams: How to Flatlock Seamlessly with Your Serger

Sewing

For flatlock stitching you need to sew with wrong sides together since you want the stitching to be visible on the right side of the garment.  

Sunflower Seams: How to Flatlock Seamlessly with Your Serger

Your stitches should appear on the right side along the edge. 

Sunflower Seams: How to Flatlock Seamlessly with Your Serger

The backside should look like this when you take it off the machine. 

Sunflower Seams: How to Flatlock Seamlessly with Your Serger

To get the stitch to lay flat, you simply need to stretch the seam apart to reveal the ladder stitches. 

Sunflower Seams: How to Flatlock Seamlessly with Your Serger

When stretched apart, the right side of the seam is joined by a lovely decorative flatlock stitch.  

Sunflower Seams: How to Flatlock Seamlessly with Your Serger

It takes a little bit of thinking to figure out how to stitch all the parts of the garment together with flatlock stitches.  Just remember that you always sew with wrong sides together, and sew with the main fabric on top.

For the neckband, that means you clip the neckband on the inside of the garment wrong sides together.  

Sunflower Seams: How to Flatlock Seamlessly with Your Serger

Sew with the main fabric on top. 

Sunflower Seams: How to Flatlock Seamlessly with Your Serger

For the sleeves, you will clip the sleeves inside the garment, wrong sides together. 

Sunflower Seams: How to Flatlock Seamlessly with Your Serger

Again, sew on the main fabric 

Sunflower Seams: How to Flatlock Seamlessly with Your Serger

For the hem, turn the hem up and secure it using glue or hem tape. 

Sunflower Seams: How to Flatlock Seamlessly with Your Serger

Turn the hem up one more time and sew along the folded edge making sure to catch the raw edge in the stitches 

Sunflower Seams: How to Flatlock Seamlessly with Your Serger

Your hem stitch will be along the bottom fold of the garment. 

Sunflower Seams: How to Flatlock Seamlessly with Your Serger

When you pull the stitches apart, your hem will lay flat. 

Sunflower Seams: How to Flatlock Seamlessly with Your Serger

That’s all there is to it!  It’s really quite easy once you wrap your mind around how to make sure you are sewing with wrong sides together.  Give it a try!  It’s kind of addicting!  

Sunflower Seams: How to Flatlock Seamlessly with Your Serger

Happy Flatlocking!

-Tamar

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