|Oslo Rolags by Sara's Texture Crafts|
I wouldn't be able to say what another seller would mean by "soft, no scratch". You see softness in feel doesn't necessarily mean a finer/higher micron. To be to use the term 'soft', could be applied to say a Ryeland fleece, which is much thicker than Merino... it's all in the eye of the beholder, so to speak. What I consider soft, might not be the same for you. Micron grades however, are an absolute and is often the way wool is marketed as ‘fine’, or ‘coarse’. Having said this you may find after experimenting that the texture and feel of a lower micron is just as good for you as a higher one... depending on what projects, or look you are going for.
I would have to say that if you definitely know that you want a higher micron, then you need to ask sellers this information if it is not available on their listings. If they sell graded and manufactured tops and rovings, then their mill will be able to provide an industry average micron rating for that fibre. If you are buying fleece from a farmer, then the seller may have had their flock's fleece tested and know the micron also.
A great book for spinners is the Fleece and Fibre Source Book. It covers a wide range of breeds and gives details on micron, hand feel (in author’s view, remember this can be somewhat subjective) and spin-ability. If you are a felt maker this is still a useful book that will have information that might help you. After all perusing the softness of yarn would be a very similar process to perusing softness in felt making.
Fibre, fleece and yarn can be bought at www.SarasTextureCrafts.com
Have a wonderful day... Sara x