2. Examine different grades of woolen fabrics, such as serges.
Defects.—If a piece of woolen is not constructed right from the start or if the work is not properly finished, that is, enough fulled in width or length, it is liable to be raggy or slazy. As a great many fabrics are more or less teaseled, there is a possibility of such pieces becoming too woolly and too hairy.
Experiment 58—Characteristics of a Good Piece of Worsted Cloth
Materials: Different kinds of worsted fabrics.
Reference: Textiles, pages [71-82].
Directions
1. A good piece of worsted fabric should have a clear outline of the pattern, perfection of weave lines, and when the fabric is exposed to light should show a luster without polish.
2. Examine different types of worsted fabrics, and notice how many conform to the above requirements.
3. The most essential point of worsted is that it should have a clean and even looking face. By clean is meant well sheared. By even is meant that the individual ends and picks used should be even and not full of knots, or of any foreign matter. Of course, there are some exceptions, for instance, in an unfinished worsted which has more or less nap on the face, it could not be sheared absolutely clear, but at the same time, the face should be very evenly cropped.
Defects.—A serious defect would be if the cloth was not well sheared or if it contained many uneven cords and picks, or ends and picks missing, or coarse ends and slubs.
Examine different worsteds and notice any defects.