[Jacob-list] Crimp and micron counts

[Neal and Louise Grose]

Betty and I have been round and round on this a couple of dozen times. there are a few things to keep in mind, especially if you are sending off samples for micron counting. 

Jacob sheep have crimp in the fleece, but shouldn't have defined fleece crimp. The difference is that in order to have defined fleece crimp, the fleece has to be rather uniform. That is, there is very little variation within the fleece in micron diameter. A Corriedale and a Jacob may well have the same Average Micron Diameter, but the standard deviation figure in the micron count should be greater for a Jacob's fleece. A coarse fleece may well have a low std. dev. and have defined fleece crimp AND fell like brillo. 

A fleece with TOO large a std.dev. is likely a double fleece. This will show up in the graph of fibers from the sample as two overlapped bell curves.

If I had a preference, I would like to see us set a range for Std. dev. if we set a range for AMD.

Neal

 
  ----- Original Message ----- 
  From: Linda 
  To: Betty Berlenbach ; Robin Lynde 
  Cc: jacob-list at jacobsheep.com 
  Sent: Sunday, December 23, 2007 7:33 PM
  Subject: Re: [Jacob-list] Locker hook rugs


  Another misconception is that more crimp means a lower micron count and a softer fleece. You can sure get really crimpy fleece with a  brillo pad feel.

  Linda
   
  www.patchworkfibers.com
  Registered Jacob Sheep, Angora Rabbits, Handspun Yarn


  Betty said:

  > Just one thought, Robin: the opposite of soft is not coarse.
  > Coarse wool or fine wool can be soft or scratchy rough.  The micron
  > count does not, at least in my experience, indicate degree of
  > softness.  That's another characteristic entirely, having to do
  > with the nature of the fiber, not the thickness. 


------------------------------------------------------------------------------


  _______________________________________________
  Jacob-list mailing list, sponsored by Swallow Lane Farm & Fiberworks
  Jacob-list at jacobsheep.com
  http://www.pairlist.net/mailman/listinfo/jacob-list
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.pairlist.net/pipermail/jacob-list/attachments/20071225/36bb6c01/attachment.html>