clopez1976 wrote: ↑Fri Apr 24, 2020 11:02 am
Hi Guys.
I just want to ask, is someone knows what type of kite sewing needles the Brand use to fabric Kites. I'm talking about needles for industrial sewing machines. For example Sharp, Ballpoint, or Universal. All the information that you can give me, I´ll be grateful...
Thanks a lot and good winds
Universal (R/RG for Groz Beckett, R/RRT for Schmetz)
Sharp (RS, SPI) work well, but don't last long on such dense woven and stiff fabrics.
Needle size is first determined by the thread size, but above guide from Marlboroughman is spot on and the sailrite link is very helpful.
There are special needles like the Serv7/Schmetz and SAN5/GrozBeckert, allowing use of thicker thread (or thinner needle), but I guess you won't be sewing hundreds of kites
bacon2109 wrote: ↑Fri Apr 24, 2020 9:56 pm
I used to repair embrodery machine, and for light nylon type fabric, "shape needles / microtex".
Why, you dont want the needle to break a wire in the thread
All threads are made from multiple wires twisted together, regardless of the twist type of thread ( S or Z)
and the fact that this kind of needle have a smaller diameter, aid if you make a mistake, by not leaving a big hole in the fabric
for heavier nylon fabric also sharpe needles, same consern, but you may go slower in speed when sewning
S twist would be of huge help for what you are trying to explain above. But such threads are very rare, believe me. For special industrial and automotive applications.
Zigzag seams untwist the standard Z-twist threads, that's the main reason sailmakers threads are bonded - even untwisted, the single yarns (wires as you call them) won't split open so the looper hook catches only one.