Why Does My Embroidery Look like Bacon?

There is nothing worse than finishing a run of 50 corporate polos only to realize the fabric is rippling around the logo. It’s called “puckering,” and it creates a ring of waved fabric that makes the shirt look cheap.
Most people blame the machine or the thread tension. But 90% of the time, puckering is caused by digitizing density and stabilizer choice.
Here is exactly how our Quality Control team at Sassy Digitizing fixes this issue.
The Science: The “Push and Pull” Effect
Embroidery is aggressive. You are punching thousands of holes into a soft fabric.
Pull: Stitches pull the fabric in towards the center.
Push: The fabric tries to escape the needle, pushing outward.
If your digitizing file doesn’t account for this, the fabric gets trapped, creating those ugly waves.
3 Ways to Fix Puckering Immediately
1. Switch to Cutaway Stabilizer If you are using Tearaway stabilizer on a stretchy polo shirt (like a Nike or Ogio performance shirt), you will get puckering. Tearaway is too weak to hold the stitches.
The Fix: Always use a medium-weight Cutaway stabilizer for performance wear. It acts as a permanent foundation for the stitches.
2. Lower Your Density Most auto-digitized files have a standard density of 0.40mm. This is too tight for soft fabrics. The thread packs in too tightly and pinches the fabric.

The Fix: Open the density to 0.42mm or 0.45mm. This “breathing room” lets the fabric relax.
3. Fix the Stitch Direction If all your stitches run in the same direction (e.g., horizontal), they will pull the shirt in one direction like a drawstring.
The Fix: A professional digitizer will vary the angles. We might run the underlay at 45 degrees and the top stitching at 90 degrees to balance the stress on the fabric.

Need a File That Doesn’t Pucker?
You shouldn’t have to guess which density works. At Sassy Digitizing, our Quality Control experts manually adjust settings for your specific fabric,whether it’s a thick hoodie or a thin performance polo.
Get a pucker-free file for your next order here.
About the Author
Keith Blair | Senior Quality Control (HOD)
Keith Blair serves as the Head of Department for Quality Control at Sassy Digitizing, bringing 12 years of commercial embroidery experience to the team. His role focuses on the technical mechanics of digitizing specifically adjusting stitch densities and lengths to suit different fabric types.
A specialist in advanced production methods, Keith oversees the digitizing standards for complex 3D puff, appliqué, and small lettering projects. He ensures that every file is tested for efficiency and run-ability before it reaches the customer, bridging the gap between digital design and physical production.




