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Message Board > Sergers, Coverstitch and Blindhemmers > Coverstitching randomly unraveling ( Moderated by CarolynGM, Deepika)

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Coverstitching randomly unraveling
Why? Why?
clgangi

clgangi  Friend of PR
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Date: 7/2/12 8:51 PM

I have a Janome 1000CP coverstitch machine, and I've noticed that sometimes the stitching (usually just one of the rows) will randomly start unraveling. It doesn't happen where I started or stopped stitching. Why is this happening?

Sew4Fun
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In reply to clgangi <<


Date: 7/2/12 8:58 PM

Possibly poor quality thread (the reason a lot of RTW coverstitching unravels), or maybe you had a skipped stitch when you sewed the hem and didn't realise.

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JKimes
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Date: 7/2/12 9:26 PM

It is really just a sort of chainstitch, so unless you tie off the threads, you may want to use some Fraycheck.
*ask me how I know!*

Juliette

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Juliette near Austin, TX
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iSewQuiltArt
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Date: 7/3/12 2:03 AM

I will add skipped stitches could be a result of a needle needing to be changed, improperly inserted, or inadvertently pulling on fabric. I am assuming you are using the correct needle type? I found the coverpro 1000CPX extremely sensitive to movement of fabric especially over seam intersections or if I had to adjust it at all under the foot it could tend to skip on me, and I always, always started a new project with new needles. If I didn't I found the stitch issue you mentioned would crop up sometimes. Persist, try best quality thread, not overlocker thread, new needles and a nice constant speed- not fast then slow...and maybe you will get better results.
-- Edited on 7/3/12 2:05 AM --

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Nonette
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In reply to clgangi <<


Date: 7/3/12 4:08 AM

I have a Juki MO735 and this happened to me once before. I only use Maxilock Thread and manufacturer recommended JLx2 needles and my stitches were still skipping - not all the time but every so often along the coverstitching line. Sent it to the repair center and I was told timing of needle to looper was off. It has not done it again since I got it back from Juki. Perhaps the timing on your 1000CP is also off. If the problem persists, it may be time to take it in for service.

Hope this helps. Good luck!

Nonette

Betakin
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In reply to clgangi <<


Date: 7/3/12 6:56 AM

I agree with what has already been posted about securing the chain stitch part of your stitches. Just one snag on the chain can make the stitches unravel.
Many times a separate chain stitch is used as a basting stitch because it can easily become undone by just snipping a thread. I used to use a chain stitch hem on my girls clothes and as they grew, I could easily just release the hem to drop the length.

clgangi

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Date: 7/4/12 8:00 PM

Thank you for the excellent suggestions and advice!

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