Assignment 4: Conductive Spinning

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By Dawn Wendell

Photo of three coils of yarn.

Three yarns made for this assignment.  (Final yarn in the foreground.)

I made yarn! Well, actually, I made 3 yarns, but I will only discuss my final yarn in detail.

Photo of three coils of yarn.

The final yarn

My final yarn is a two-ply wool-steel blend. One of the plies is wool-only and the other is a mixture of conductive steel fibers and wool. The plies were spun using a drop-spindle and then plied by hand. The yarn was not soaked in hot water, so the twist isn't set and its not quite a "finished" yarn. However, I am happy with it! My goal was to learn to spin, and by spinning both a normal wool ply and a wool-steel blend, I was able to experiment with the difference between spinning natural and man-made fibers. Also, I was hoping to make a conductive yarn but I wasn't sure how much steel I needed to spin into the yarn for that. Luckily the amount of steel I added to the second ply was enough to have good conductance over the whole 2 meter yarn.

The steel fibers didn't integrate very well with the wool even though I was trying to combine them evenly while spinning.

Set of four photos showing the steel fibers within the yarn.Set of four photos showing the steel fibers within the yarn.Set of four photos showing the steel fibers within the yarn.Set of four photos showing the steel fibers within the yarn.

Close-up pictures of the yarn show the conductive steel fibers running through the second ply.

Yarn Specifications

The following properties of the yarn were measured:

Properties Measurements
Diameter 2-5 mm
Total yarn length 2.03 m
Ply 2
Fiber length 95 mm
Twist direction S-twist
Twist 3-4 turns/inch
Conductivity 1 ohm/inch

Extra Credit Measurements: Tex

I also measured the tex of the yarn. First I weighed the yarn I made. Then I converted its weight into a weight (in grams) per length (meters), which was 2.365 grams/meter. Since tex is the weight of 1000 meters of yarn, I multiplied 2.365 by 1000 to find that the tex of my yarn is 2,365.

Thoughts, Improvements, Suggestions

  • Spinning is HARD – This video makes it look easy!
    theartofmegan. “Spinning Yarn on a Drop Spindle – Tutorial.” YouTube. May 13, 2008. Accessed December 2, 2010. http://www.youtube.com/watch?v=7gXTWgMeMgI
    It takes a lot of patience and coordination to do correctly. However, I think this assignment was good because 2 yards was a reasonable amount to make, not too much, not too little.
  • The metal fibers seem soft at first, but the definitely "shed" more, so little bits of metal ended up all around where I was spinning. Also, I found that I couldn't run my hand along the roving as tightly with the steel because it was more prickly than the wool when being held tightly.
  • Plying magnifies any inconsistencies in your tension from spinning. Luckily art yarns are very pretty! :-)

 

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