The temperature has been lower than I’d like and so I decided to make note of the water bath temperature (62.2*): a bit too low for my taste.
However, the retting seems to be coming along- despite the low temperature. My hope is that the retting process will simply take a longer time, rather than have the process not happen at all. Sometimes certain “good” microbes (ie. the microbes I want) only flourish at certain temperatures (and conditions) and have a harder time living (well) in others. Sometimes this allows for the bad guys (ie. the microbes I don’t want) to gain control of things. I hope that this doesn’t happen.
I derive comfort from the fact that flax is often grown and retted in conditions as cool- or cooler- than those currently being experienced in my area.
The water really doesn’t smell bad… I have heard horror stories about the smell of retting but, so far, I haven’t had an issue with the smell.
I have been thinking for some time about method of gathering and processing and which might be better- with the use of better used subjectively- as better is always dependent on situation and personal beliefs and desires.
In Yarn From Nettles- A Practical Guide, Birta Ford lists several ways to process nettles. Her favorite method, though (root retting) seems to yield smallish fibers that are carded and spun using short draw on a wheel (or with a lightweight, supported spindle). Using Ford’s method, it seems like the finished fiber is more like tow than line… I wonder if the resulting yarn is softer like that spun from tow?
NettleJen expressed a bit of frustration with the fact that her (still) water retting experiment yielded short fibers. She maintained that, while they were certainly spinnable, they were a bit short.
I have always thought that the longer the bast fiber (as in flax line), the stronger the yarn and yarn spun from tow- although softer- was not nearly as strong.
August 30
The nettles were removed and put on a rock pathway (as suggested by Ford) to dry. They were turned once during the drying process.
Once dry enough to stand up without bending or breaking, they were leaned up against a structure to dry. Because of an impending storm, they were brought inside to dry fully.
A few days later, we attempted to prep the stalks in order to release the fiber; however, we found that the nettles were not retted enough.
I can only guess that temperature played a role in the lack of retting, as it had been in the low 50s (F) at night and only around 70F during the day- meaning that the average daily temperature was only around 60F.
The stalks were- once again- submerged for 8 days- after which it was clear that the retting process had been successful.
The stalks were dried as before.
Processing
I have read conflicting information regarding the processing of nettles for use as fiber. I have read that, at some point, in some cultures, nettles were prepared/ processed like flax- using scutchers, hackles, etc. I have also read that nettles were processed using completely different methods.
After processing nettles myself, I believe the latter is more realistic than the former.
The spinnable product that results after processing has an incredibly short staple length and, moreovoer, the raw fibers lack the tensile strength of flax. The resulting fibers are more fuzzy and with a staple length of about 1.5- 2”.
It was, at first, necessary to remove the pith from the fibers. This was done by simply breaking the pith away from the bast fibers and then using a fingernail to scrape the spinnable fibers from the remaining pith.
Next time, I will wrap the stalks in a towel and use a rubber mallet to break apart the stalk a bit before further separating pith from fiber.
Birte Ford uses a kind of improvised scutcher but, since we lack this kind of device, we must figure out how to more effectively remove pith chaff from spinnable, solt fibers. I will look into making an improvised scutcher so that we may have one available for processing our root- retted stalks in the spring.
In any case, after liberating most of the spinning fibers from the pith, I attempted to use my drum carder in the pursuit of better carding out pith from fiber. I also wanted to see if I could come up with a spinable fiber by using the drum carder- as Birte Ford suggests.
I found that the soft, thin fibers just got embedded in the tines of the drum- but it did effectively help with further separation of fiber from pith. I believe that- had I had more fiber- the drum carder would have worked well. However, because I was just carding a small sample, the drum carder proved ineffective.
Instead, I used coarse hand cards and was able to separate almost all of the remaining chaff from the fiber. I carded for quite some time, though- until I saw that most of the chaff had been released and that the fibers were looking smooth and spinnable. At this point, I switched to universal hand cards just to smooth out the fibers a bit more.
Fiber Preparation for Spinning
Once the fibers were carded to the point at which my brain deemed them ready to spin, I rolled the fiber into a puni.
The short staple length and lack of a good amount of fiber dictated that the fiber be put into puni form. I suppose I could have spun off the cards but I like to keep things as simple as possible when I am testing a new fiber or spinning method. Also, I really like to know the nature (spin- wise) of a fiber before I spin it from cards; I find that really knowing the qualities of my fiber gives me the knowledge and confidence to spin it from cards with confidence.
The puni form worked well. Very well, in fact. I was surprised how easy the fiber was to spin. I expected at least one break due to over- or under- twisting- but it all went rather smoothly.
Spinning
I began using high twist (6:1) pulley and medium take- up. I found that the initial tension was too high and so I lowered it a bit. I also found that the small pulley was giving me too much twist and so I switched to a larger one (8:1) . It was really a lot of fun to spin!
I used my Lendrum Original DT; you may find that these ratios don’t work for you on your wheel of choice.
By the time I had the tension and take- up figured out, I had run out of fiber :-( .
The resulting yarn was stronger than I thought it would be- and it was extremely soft and fluffy. While linen takes a quite a few washes to soften up, the nettle yarn was instantly soft.
I should mention that the final yarn is a lovely light brown/ mint green color; lovely!
The good news is that I have more stalks to process- which means more experimentation- which means more fun!
Next time, I will use a mallet (as was discussed) to initially break up the stalks.
Also, I am going to be harvesting more nettle to day for dew- retting, as there is now plenty of dew on the ground in the morning.
References:
Yarn From Wild Nettles: a Practical Guide, Ford, Birte. Nettlecraft, Tulliemet, Perthshire, UK; 2014