Facebook Email Pinterest Twitter X Instagram Tiktok Icon YouTube Icon Headphones Icon Favorite Navigation Search Icon Forum Search Icon Main Search Icon Close Icon Video Play Icon Indicator Arrow Icon Close Icon Hamburger/Search Icon Plus Icon Arrow Down Icon Video Guide Icon Article Guide Icon Modal Close Icon Guide Search Icon

Conversational Threads

Topstitching – Fly front

Stitchwitch | Posted in General Discussion on

I’m sewing on with a medium weight woven, 80 universal needle. I find that when I topstitch the fly that where it catches the zipper tape the stitches are loose and “loopy”. I’m scared that it will come undone during washing as the topstitching stitches aren’t help in position properly because of the “loopy” threads on the reverse side of the fabric. Any tips?


  1. DONNAKAYE | | #1

    Well, that's not good.  The only suggestion I can think to make -- if your machine's thread tension is otherwise okay -- is to try a larger needle.  Using regular all-purpose thread?  Does your machine's tension self-adjust, or do you need to manually adjust it?  Whenever I've had this problem I've had to go on a hunting expedition and find a little tiny piece of thread caught somewhere in the bobbin assembly.  Sometimes it's required a flashlight and a magnifying glass.  I wouldn't trust it through the wash either.  What fabric are you using?

    1. Stitchwitch | | #2

      I'm sewing with a good old Bernina self-adjusting tension. I use a stitchlength of 3 on my Bernina. Sewing on a Polyester Cotton. I think what happens is that when I turn the corner the stitches don't form properly because of the longer stitchlength. Does this make sense? I also stitch from the top - bottom. Maybe I should try from the bottom - top? Yes, Im using Guttermann all-purpose sewing thread.

      1. DONNAKAYE | | #3

        Yes, I'm on a Bernina too, with self-adjusting tension.  Hmm.  Everything sounds right.  I'm sure you've tried replacing the needle.  Have you tried Needle Lube on the needle?  That's my last suggestion....D.

  2. sewelegant | | #4

    I've had this problem too and it can be so frustrating.  I think what is happening is the needle is not catching the bobbin thread for that stitch and you just have to figure out why.  Changing to a new needle has helped.  Rethreading has helped.    Have you checked the bobbin case for lots of fluffy debris?  Actually, it doesn't have to be that much!  Just changing from one thickness to another probably boggled the machine's brain and it balked, and it could be because of any of the above. 

    Did you pre-wash the fabric and use a softener sheet in the dryer?  That's a big No No.

    Good luck, will be looking for how you solved this problem.


This post is archived.

Threads Insider

Get instant access to hundreds of videos, tutorials, projects, and more.

Start Your Free Trial

Already an Insider? Log in

Conversational Threads

Recent Posts and Replies

  • |
  • |
  • |
  • |
  • |
  • |

Threads Insider Exclusives

View All
View All