At one time, only the extremely long wools within a grade were combed because of the limitations of available equipment. Worsted materials generally have a smooth firmer finish, are thinner with more twist of the yarn, and are the most durable of wool materials. They are used primarily in gabardine fabrics and garments with a tailored look. These wools are carded on a woolen card but are not combed. Examples of woolens are wool blankets, hosiery and flannels.
Garments tend to be bulky in appearance.
Comparison of wool grading systems. The blood system for most all useful purposes is outdated and has not been recognized by USDA since 1955. 1 Colorado State University Cooperative Extension sheep and wool specialist, animal sciences. Go to top of this page. Updated Wednesday, May 02, 2001.