This is Kitronik's very own Electro-Fashion® branded Conductive Thread and we think it is among the best conductive thread available. It is perfect for hand sewing and can also be used on the bottom bobbin of a sewing machine (this will require the thread to be wound on to the smaller bottom bobbin first).
Conductive thread can be used like conventional sewing yarn, however it electrically conducts allowing electronics to be integrated into textiles. This makes it ideal for use in a range of e-textile applications.
The thread is nano plated with silver to make it conductive. The conductive thread has a low resistance of approximately 40 Ohms per metre. This allows LEDs to be powered over quite large distances. Resistance does not vary significantly from one length of thread to the next, so you should be able to use this thread without concern for "dead" sections.
The conductive thread has a breaking strain of around 9.3 pounds (4.2 kilos). It comprises roughly 96 individual filaments, each coated with a micron-thick layer of natural silver. This plating of the yarn is done in Europe to ensure as high a quality finish as possible. In construction, 16 of these filaments are wound together to form an initial twist; two of these twists are then twisted together, and finally three of these twists are combined to form the finished thread. The conductive thread is approximately 18 denier. It is heavier than a regular sewing thread, but not as heavy as an upholstery thread. It can be sewn on most domestic sewing machines using either a regular needle or the next size up. This thread does not fray.
- No (or very low) fray.
- Conductivity = approximately 40Ω per metre.
- Count = 875 dTex.
- Strength 3000 cN.
- Elongation at break = 37%.
- Twist = 240Z-380S.
- 1 x Reel Electro-Fashion®, Conductive Thread, 50 yards / 45m.
Conductive Thread demo video.
A video about our Electro-Fashion range taken from our Ask Kitronik Live event 2012.
Learn how to make Valentine Magnetic Hearts using conductive thread in our easy to follow tutorial.
Unsure of which needle to use with our conductive thread? This quick guide will help you choose the right needle.
Learn how to how to add sewable LEDs to Easter Bunny Ears in our easy to follow tutorial.
Learn how to quickly and easily thread needles with conductive thread.
Using conductive thread and how it works.
Learn how to start sewing your E-Textiles circuit in our easy to follow tutorial.
Learn how to add a magnet switch to an E-Textiles circuit in our easy to follow tutorial.
Learn how to finish off E-Textile stitches in our easy to follow tutorial.
Our Thread Winding Machine has been designed to measure and wind a piece of conductive thread neatly around an Electro-Fashion bobbin, find out how!
Learn how to make a backpack cover with a light sensor in our easy to follow tutorial.
Learn how to use a through hole LED in a simple E-Textiles circuit in our easy to follow tutorial.
Learn how to make an LED Brooch with a magnet switch in our easy to follow tutorial.
Learn how to add a Sewable PCB LED to a simple E-Textiles circuit in our easy to follow tutorial.
Learn how to position LEDs through fabric in our easy to follow tutorial.
Learn how to make a 'Be Seen, Be Safe' LED Armband using conductive thread in our easy to follow tutorial.
Common faults that can stop your final circuit from working.
So, you have a few questions about E-Textiles - here's a few of our frequently asked questions relating to conductive thread, LEDs, coin cells and how to take care of your wearables.
Learn about basic E-Textiles stitches in our easy to follow tutorial.
These new E-Textiles kits from Kitronik have been specially designed so that electronics can easily be used in textile applications - without soldering!
Learn how to create a basic E-Textile LED circuit in our easy to follow tutorial.
You can't solder the conductive thread, it would just burn if you tried to solder it.Posted byon Thursday, 9 July 2015
0voteA: Hi, that depends on the voltage of the battery, but realistically the thread would burn up before allowing high enough voltages to give a shock.Posted byon Wednesday, 1 October 2014
0voteA: Hi, we may be able to sell it in higher quantities, it depends on how much you require. If you email me some details (how much you are looking for etc.) at firstname.lastname@example.org I will see what I can do.Posted byon Friday, 19 September 2014
0voteA: Hi, it is cotton. It's impregnated with silver though so it has a shiny grey appearance. It's still completely soft and feels like regular cotton.Posted byon Friday, 5 September 2014
0voteA: It might work to some degree, aluminium foil would do the job better. Lower resistance and more homogeneous.Posted byon Thursday, 19 June 2014
0voteA: Hi, the brightness is limited by the current. Current is I = V/R so to increase the current you can increase the voltage or lower the resistance. Raising the voltage will put more power through the thread though and that will cause it to heat up and eventually burn out. The solution is, as you identified, to lower the resistance by adding more threads. Each time you double the distance to the battery you double the resistance, which can be counteracted by using twice as much thread. (2 threads instead of 1, or 4 threads instead of 2). Balancing them perfectly would be quite difficult though.Posted byon Tuesday, 17 June 2014
0voteA: No the thread is a cotton-silver blend. I don't know the exact diameter of the filaments. The diameter of the thread is about 1mm and there are 96 filaments in it so that would give a filament diameter of approximately 0.01mmPosted byon Friday, 6 June 2014
0voteA: Yes, just sew it into the fingertips to make little 'pads' of conductive thread. I've tested this myself :)Posted byon Tuesday, 22 April 2014
0voteA: Corrosion will depend on the environment the thread is in. I've never noticed any corrosion from the thread on our shelves. I don't have any data about the thread being repeatedly washed or exposed to the elements though.Posted byon Wednesday, 28 May 2014
0voteA: The resistance of the thread is approximately 40ohms/metre or 12.2 ohms/footPosted byon Thursday, 12 September 2013
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