Showing posts with label wool. Show all posts
Showing posts with label wool. Show all posts

Thursday, October 27, 2011

A problem gift

[PhotoSuffolk lock being identified]
Someone gave me a fleece sample, a lock of fleece washed and another still dirty, with a promise that if I liked it, I could have the whole fleece. A gift. A friend of theirs had had it in storage for a few years, was downsizing and they apparently knew a good fleece.  
I certainly liked that lock and used another gift - the recently published book Fleece and Fibre Sourcebook by Deborah Robson and Carol Ekarius ...(I highly recommend it!) to identify the type of fleece. The blunt tip, the boxy lock, the fuzzy down-style crimp and knowing the local farmers penchant for certain meat sheep was a giveaway, and the book seemed to confirm that it was indeed from a Suffolk sheep. 
Suffolk is not a glamorous fleece, not rare, not special, yet it has a nice loft, is satisfying to spin and makes for a good versatile fibre to have hanging around the wool stash. It would make a good addition by itself for yarn or being useful for blends to add loft to a yarn. It's great for everyday things like mittens, sweaters, socks. So I eagerly said, "yes please. I like it." Visions of lofty yarns danced before me.
[PhotoMoths!]
And so a big garbage bag was delivered to me in town. The bag had been ripped open a bit at the top so I looked in...and then took a closer look...and then put my glasses on and took an even closer look. Moths! Lots of them. Apparently dead but did I dare take this fleece over to the island, into my house into my wool stash? Did they lay eggs before they died? Does dead ones on the top indicate live ones down below?
I have heard horror stories about moth invasions where someone's whole wool stash was ruined (readers may remember moths were the reason Trudy's sweater was in her freezer -see that blog post).  A vision of this fleece in a freezer...my Mom's, since mine is way too small. I shook my head.
Another vision appeared, of a cloud of small moths flitting in and out of my cupboards, dancing around me, chomping up my stash. I couldn't take the risk. I knew I would regret throwing it out, but I also knew if I did bring in a moth invasion I might have a bigger regret. So I tossed it. Sigh.

Sunday, December 12, 2010

Fur, hair and wool - what's it all about?

A human hair
Photo done by Scanning Electron Microscopy (SEM)
© 2010 University of Minnesota Duluth
What's the difference between fur, wool and hair? This is a question that has been bugging me for a long time, so I tried to find out the answer. Let me tell you right up front that I didn't find a simple answer. The following is what I have gleamed but please post a comment if you can add any clarity to this question.
Some of this confusion seems to be a matter of word usage, as they are all the same protein (keratin), so technically they are all hair. However, some features that help distinguish the usage of terms: The thickness for example. Hair has lower density with 500 follicles/sq inch although not all are active at the same time, so let's say @100-200 follicles per sq inch should define hair. Sheep wool on the other hand, have up to 60,000 follicles/sq inch (Merino) and if the density is high, like a sea otter which has one of the highest densities at 800,000 per sq inch, the hair is referred to as fur. 
Another characteristic that some use to distinguish between terms is the growth pattern. Fur grows to a certain length then stops, while wool and hair keeps on growing. Although, this all depends on species and genetics, but generally this seems a good separator. Fur tends to have a major shedding time annually. Only the primitive sheep (eg. Soay, Orkney, Hebridean) and the so called 'hair' sheep breeds (eg.Saint Croix, West African, Wiltshire Horn) shed annually. 
Churro sheep wool. SEM
Photo by Dave Lewis and the Ohio 
 Agriculture Research and Development Center in Wooster
Wool tends to be the term for sheep fleece. Some sheep have kemp (thick hairs) in amongst the wool usually in is found in certain breeds of sheep and certain locations (eg. rear end), other sheep and Llamas have double coats with longer guard-type hairs designed to shed water and shorter insulating down fur (eg. Icelandic, Navajo Churro) for warmth.
Alpaca.
Photo by Dave Lewis and the Ohio 
 Agriculture Research and Development Center in Wooster
And then there is the more technical characteristics, like the cellular structure. The hair shaft is made of cuticle cells (keritine) that form scales, overlapping each other and pointing towards the tip. The cells form a protective coating around the cortex (inner area). In the fine merino wool, the cells are one layer thick while human hair can be 10 layers thick. This cellular structure is different for each type of hair (eg. eyelashes, whiskers, hair) from different animals. The scanning electron microscope photos here show some of the different structures. Look at the difference between human hair, churro sheep and angora rabbit in the pictures here. But, it doesn't help much in distinguishing hair from fur from wool.
Alpaca  Light microscope photo
showing the medulation (dark areas).
Photo by Dave Lewis and the Ohio 
 Agriculture Research and Development Center in Wooster
Inside the hair shaft is the cortex. This is the middle of the hair/wool/fur. If the centre of the cortex is hollow we call the core 'medulla' or a medulated hair. The inner core can be a consistently hollow core, or contain sections which are hollow. This medulation can provide insulation, hence hairs with no medulation hold heat less well than medulated hairs. Alpacas and Llamas have medulated hairs while sheep do not, hence Alpaca wool is a better insulator than wool.
Angora. Note the very interesting V-shape cell structure
SEM Photo by Dave Lewis and the Ohio
 Agriculture Research and Development Center in Wooster
So why is this interesting? For a few reasons. The structure of a fibre creates its characteristics for: heat retention; strength, elasticity, felting tendency, light reflection, etc. And also because I want to be able to analyze a fibre and have a way to figure out if it is Mountain Goat or sheep wool or from the Coast Salish wool dog.




Sunday, October 31, 2010

One left foot

One twisted ankle
Did I mention I signed up for a 'Learn to Run' class? Yup, they teach this. And there is a lot to learn (where to land on your foot for example) and a lot of homework (practise)! It's a great way to become a runner. I know this because I have taken the course before and had worked up to running 13 minutes, then a 2 minute walk and repeat the sequence. It got me through a 5k run in a respectable time. But that was a few years ago a a few pounds lighter.
Well, this time I failed. Flunked out. We got to the midterm and I had worked up to be running a full three continuous minutes, then a two minute walk and was feeling pretty good about this progress when I found a pothole, at the 30 minute mark, in the side walk and down I went. I limped back to work (this being a lunch time activity) where the first aid people bandaged me up, gave me a cold pack and strict instructions to keep it elevated as much as possible for the first 48hours. Apparently early care means an early heal (no pun intended).
I do not mind being housebound or couch bound, but here is the problem. My right foot is the sprained one and my spinning wheel is a single right-foot treadle. What's the good of being house and couch-bound with 36 more spinning homework kits awaiting and with only one left foot?
Alpaca and black walnut dyed wool, drum carded
 (on the left), combed (in the middle) and being
 dizzed into fine tops which were rolled until
ready to spin (on the right)
I returned to the guest bedroom aka the wool stash and without awaking Priscila the spirit, the-fleece-less-sheep-that-rules-the-guest-bedroom-wool-stash, dug into the homework bag that held the kits still to be blended, combed, carded and dizzed and spent today seated in the sunroom aka the production studio and carded, belnded, combed and dizzed a few more kits, so at least I felt I was making some progress. Back on the couch, I resorted back to the spindle and am now working on a blend of silk and mohair. Very deluxe. But I am getting ahead of the next post.
Count down: 150 days to go (using revised deadline date of March 31)

Saturday, October 23, 2010

Day 3 and 4, Kit #38

Spinning in the car - not while I drove.
Okay, Kit #38 is supposed to be at the finish line, or at in sight of it but I panicked. I was worried about all the travelling I had coming up in the next week and thinking I would be a week behind with only 1, maybe 2 kits completed.
I was off to Victoria to meet with a curator at the BC Museum to look at historical photos of Coast Salish spinning (but that's another story) and then to go to the Victoria Hand Weavers and Spinners Guild meeting, which meant that I wouldn't have time to spin. Eureka, I would take my spindle and the Kit (#38) that required a 10 yard sample of a 2 ply yarn done with a drop spindle. I could spindle at the Guild meeting, and while the other half drove, I could spindle in the car. And this gives me a good idea. For all those trips, I will select some other kits that would be suitable to use the spindle. One big headache solved.
Which brings me back to Kit #38, a blend of beige llama blended with a Frieson x Suffolk cross both of which had a similar length staple and I had dyed the wool with Black Walnuts to get that ho-hum beige. The mix is a very nice, soft camel coloured yarn.
Time: 1.5 hours driving, 1 hour in a meeting, 1 hour plying in the car, in the dark using a flashlight! = 3.5 hours (including coffee stops)
Count: 3 down, 37 to go.

Friday, October 22, 2010

Homework - Kit #1 True Woollen

Kit #1, Merino, prepared and spun woollen
Arrrghhh. I didn't enjoy Kit #1 (which I did second) until I got into the groove which was about at the 90% done mark but before then I was fighting it. The assignment: spin 10 yards of a fine fleece (I used Merino) using a true woollen preparation and true woolllen spinning technique. Simple. HA!  
After spending 4 months trying to get integrity into my yarn by spinning a true worsted, I had forgotten how to loosen up and spin an easy-as-pie woollen. Adding to my frustration was the idea lurking in the back of my mind that I would run out of Merino so I had to make this work. What rubbish. Think about it. There are an estimated 100 million sheep just in Australia and the majority of them are Merino. There is lots of Merino fleece to be had if I needed more, so why let that fear worry me. I finally put that thought out of my mind. Once I got into the hang of easy-as-pie woollen long draw, it worked, there was evenness in the yarn. When I plied it back on itself to test what it would look like...by gawd, it looked good. So I kept going and then plied the two bobbins into one yarn and got 20 meters with fleece to spare. Not much but some, at least enough for the assignment but I have to admit, I didn't think that my plying was even. But right now I am feeling...good enough. Move on to something nicer, something more pleasing and relaxing to spin.
Time to prepare, spin, curse, ply, wash: 2 hours
Count: 2 down 38 to go.