PaperPrincess

I am quilting a throw on my longarm. There's a red border, green border & white snowmen. We decided to use 3 colors of thread, red, green & white with matching bobbin thread. When I was all done and unrolling the quilt, I noticed that in the areas using the green thread, there were eyelashes on the back that Maybelline would be proud of. I mean most were 1/16", some were 1/8". It actually looked fine from the front. The areas quilted with red and white were just fine.

All 3 spools were the same brand, same type, same weight and actually purchased the same day. Bobbins all wound the same time with the same bobbin winder. I quilted the red, cut the thread & rethreaded with the green, cut & loaded the white, then green again etc. I know the machine was threaded exactly the same because I cut the thread at the spool, attach the new color and pull the new one thru. Each time I changed the bobbin thread, I checked the tension doing a pull test and everything seemed just fine with all three colors. I made no tension adjustment on the bobbin or the top and used the same needle thru out.

I guess the upside is it's really easy to take the stitching out, and I caught it before I unpinned it from the frame.

Never thought to do a test with each color. I guess I will do that in the future. All I can think of is that the green was thinner than the other colors, so the top tension was looser?? (but the bobbin tension seemed the same for all colors)?? Has this happened to anyone else?