nylon fabric edge

Hi,
I came across an umbrella, the other day, with NO hem, on
the outer edge. My wife told me that it's because they cut it so that
the edge of the material is where the hem would be, had it been cut
there. Can anyone tell me how the edge of the fabric is made so that no
hem is visible?

Thanks,

John

"Shinnen" wrote:

Hi,
I came across an umbrella, the other day, with NO hem, on
the outer edge. My wife told me that it's because they cut it so that
the edge of the material is where the hem would be, had it been cut
there. Can anyone tell me how the edge of the fabric is made so that no
hem is visible?

Hot knife. Actually, I think they use a hot wire, but it's the same
idea. If you melt/sear the edges of the nylon, it won't fray. It can
be done with a candle, if you've practiced on scraps, although an
easier way is to use a soldering iron or a woodbruning tool.

--
Jenn Ridley :
WIP: Oriental Butterfly, Floral Sampler, Rose Trio, Carousel (TW)
Most recently Finished: Insect Sampler, TicTacToe Sampler, Snow
Stitching log: http://jenn-stitch.livejournal.com/

Hi Mirjam,
I can see fibre, so I'm assuming it's not cast.
Hi Jen,
I use the soldering iron technique for "basting", when I'm sewing
panels together. It works very well. I've even tried cutting the panels
out with my soldering iron, but it make a very course line, and I think
I'm missing something. I'd like to learn to do it, because it prevents
further fraying. If you have any suggestions I'd appreciate it.
Thanks,
John

"Shinnen" wrote:

Hi Mirjam,
I can see fibre, so I'm assuming it's not cast.
Hi Jen,
I use the soldering iron technique for "basting", when I'm sewing
panels together. It works very well. I've even tried cutting the panels
out with my soldering iron, but it make a very course line, and I think
I'm missing something. I'd like to learn to do it, because it prevents
further fraying. If you have any suggestions I'd appreciate it.


I was taught to cut the fabric to shape first and then sear the edges
by running them along a soldering iron. I've also done it by passing
the cut edge through a candle flame. (The candle flame takes more
practice, but is doable.)

--
Jenn Ridley :
WIP: Oriental Butterfly, Floral Sampler, Rose Trio, Carousel (TW)
Most recently Finished: Insect Sampler, TicTacToe Sampler, Snow
Stitching log: http://jenn-stitch.livejournal.com/

Thanks Jenn ... John