Frayed Cloth Cleanup
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Kyle Purcell
(dufus934) - F

Locale: North Texas
Frayed Cloth Cleanup on 01/09/2009 13:11:59 MST Print View

I have grown to really enjoy sewing my gear, but there is one problem that I cannot get past. How do you deal with the fraying that results from cutting some fabrics? I hate this, because they sometimes catch in the machine's processes. This fouls up the machine or causes pulls in the fabric. I realize this doesn't happen that much, but when it does, it stinks!

I've thought about maybe using a hot knife. Would this work? Will all fabrics be safe cutting with a hot knife? Are there other ways to stop this fraying that will still leave me with a stright edge?

Denis Hazlewood
(redleader) - MLife

Locale: Luxury-Light Luke on the Llano Azul
Re: Frayed Cloth Cleanup on 01/09/2009 22:33:25 MST Print View

Serging! I believe I spelled that correctly. Ask about it at your local sewing shop.

Roger Caffin
(rcaffin) - BPL Staff - MLife

Locale: Wollemi & Kosciusko NPs, Europe
Re: Frayed Cloth Cleanup on 01/10/2009 02:26:49 MST Print View

> I've thought about maybe using a hot knife. Would this work?
A hot knife and a steel edge works great.

> Will all fabrics be safe cutting with a hot knife?
Works with synthetics, but won't work with any natural fibres. Blends like poly-cotton won't work either.

The fraying problem is one reason some synthetics have a cheap acrylic coating. NOT for waterproofing, but to bind and stabilise the weave.

Cheers

Kyle Purcell
(dufus934) - F

Locale: North Texas
Nylon? on 01/10/2009 09:53:52 MST Print View

Roger,
So the "normal" fabrics we use (i.e. silnylon, spinnaker, cuban, and etc) will ALL work with a hot knife?

Roger Caffin
(rcaffin) - BPL Staff - MLife

Locale: Wollemi & Kosciusko NPs, Europe
Re: Nylon? on 01/10/2009 14:49:32 MST Print View

> So the "normal" fabrics we use (i.e. silnylon, spinnaker, cuban, and etc) will ALL work with a hot knife?
Yep. I have cut all of those.

If your hot knife has a variable temperature you should do some tests on scraps before you start on the real cutting to see what temperature is best for the fabric you are cutting. I need a different temperature for 30 gsm parachute cloth compared to 1000 denier Cordura! Cutting speed also factors in.

I cut on some cheap 3-ply. It ends up with many slight burn marks. Don't do it on carpet, polished floors, concrete, ...

Cheers

Denis Hazlewood
(redleader) - MLife

Locale: Luxury-Light Luke on the Llano Azul
Re: Hot Knife Cutting Nylon? on 01/10/2009 17:55:19 MST Print View

If you have a wood deck, I have found it helpful in maintaining a straight line. I use duct tape and very gently stretch the fabric.