Electro-Fashion, Conductive Thread, 50 yards / 45m

Product Code: 2722

Quick Overview

Conductive thread can be used like conventional sewing thread, however it electrically conducts allowing electronics to be integrated into textiles. 45m length.

Availability: In Stock.

Excl. VAT: $11.558 Incl. VAT: $13.870
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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 be used on the bottom bobbin of a sewing machine (this will requite the thread to be wound on to the smaller bottom bobbin first).

Reels of conductive thread are 50 yards/ 45m.

Conductive thread can be used like conventional sewing thread, however it electrically conducts allowing electronics to be integrated into textiles. This makes it ideal for use in a range of e-textile applications.

Electrical Characteristics: The thread is nano platted with silver to make it conductive. The conductive thread has a low resistance of approximately 40ohms 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.

Physical Characteristics: 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. 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.

Key features:

  • No (or very low) fray.
  • Conductivity = approximately 40Ω per metre.
  • Count = 875 dTex.
  • Strength 3000 cN.
  • Elongation at break = 37%.
  • Twist = 240Z-380S.

For more information and examples showing you how to use these parts in a e-textiles design visit our dedicated e-textiles section.

Electro_Fashion_FAQs2
E-Textiles: the Frequently Asked Questions!
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.
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How to Add Sewable LEDs to Easter Bunny Ears
Learn how to how to add sewable LEDs to Easter Bunny Ears in our easy to follow tutorial.
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How to Make Valentine Magnetic Hearts
Learn how to make Valentine Magnetic Hearts using conductive thread in our easy to follow tutorial.
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How to Make an LED Brooch with a Magnet Switch
Learn how to make an LED Brooch with a magnet switch in our easy to follow tutorial.
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How to Make a Backpack Cover with a Light Sensor
Learn how to make a backpack cover with a light sensor in our easy to follow tutorial.
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How to Make a ‘Be Seen, Be Safe’ Armband
Learn how to make a 'Be Seen, Be Safe' LED Armband using conductive thread in our easy to follow tutorial.
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How to Use the Magnetic Switch in an E-Textile Circuit
Learn how to add a magnet switch to an E-Textiles circuit in our easy to follow tutorial.
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How to Make a Basic E-Textile LED Circuit
Learn how to create a basic E-Textile LED circuit in our easy to follow tutorial.
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How Conductive Thread Works
Using conductive thread and how it works.
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Fault Finding in E-Textiles
Common faults that can stop your final circuit from working.

Questions:

Posted by Amy Ilic, Thursday, 19 June 2014 on product Electro-Fashion, Conductive Thread, 50 yards / 45m

Question:

If i used this thread to weave a wall hanging behind my bed with normal thread would it shield from EMF's from the walls electrics? How much of the conductive thread would i need to use for it to be affective in comparison to the other normal thread? thank you!

Answers:

  • Posted by Aaron Sturman on Thursday, 19 June 2014
    It might work to some degree, aluminium foil would do the job better. Lower resistance and more homogeneous.
Posted by Zee, Tuesday, 17 June 2014 on product Electro-Fashion, Conductive Thread, 50 yards / 45m

Question:

Hi. I was wanting to stitch 10 to 50 colour changing LEDs in parallel over a 3 metre long fabric project. The power supply will be mains using a 5 volt power lead (I've read other information regarding matching volts of LEDs to the power supply and not needing a resistor). The power source is at one end of the line of LEDs and can't be positioned in the middle or anywhere else. My question is :- With the conductive thread loosing power over long distances. Would it improve the brightness of the LEDs furthest away from the power source, if I was to start using a double or triple strand of thread halfway through the 3 metre long project? Or does the mains 5 volt supply improve the brightness of the LEDs furthest away, compared to using a battery? Can you suggest anything else to improve the brightness. Thank you

Answers:

  • Posted by Aaron Sturman on Tuesday, 17 June 2014
    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 by Sam, Friday, 6 June 2014 on product Electro-Fashion, Conductive Thread, 50 yards / 45m

Question:

Is this thread made from Nylon? Do you know the diameter of the individual filaments?

Answers:

  • Posted by Aaron Sturman on Friday, 6 June 2014
    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 0.01mm
Posted by Liz, Tuesday, 22 April 2014 on product Electro-Fashion, Conductive Thread, 50 yards / 45m

Question:

Can I use this thread to make touchscreen gloves out of non touchscreen gloves?!

Answers:

  • Posted by Aaron Sturman on Tuesday, 22 April 2014
    Yes, just sew it into the fingertips to make little 'pads' of conductive thread. I've tested this myself :)
Posted by Rachel McCrafty, Friday, 11 April 2014 on product Electro-Fashion, Conductive Thread, 50 yards / 45m

Question:

How does this thread stand up to corrosion over time? Other silver plated thread I have used does not stand up after about a year or so.

Answers:

  • Posted by Aaron Sturman on Friday, 11 April 2014
    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.

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