Cardinal vs Ordinal. In our day to day life, the use of numbers may take different forms in different situations. For example, when we count to figure out the size of a collection of objects, we count them as one, two, three, and so on.
Hopsack-Popular suiting fabric made from a 2-and-2 or a 3-and-3 basket weave. Generally appear as small squares. A coarse, open woven fabric which got its name from the plain weave fabric used for sacking in which hops were gathered. The hopsack weave is found in silk, cotton, wool, linen, rayon, hemp, and jute.
Acrylic is our final fiber. It can be thought of as artificial wool. It is made from the unlikely combination of coal, air, water, oil and limestone. DuPont first made acrylic fibers in 1944 and began commercial production in 1950. It is spun by either dry spinning or wet spinning. In dry spinning the dissolved polymers are extruded into warm air. The fibers solidify by evaporation. In wet spinning the polymer is dissolved and extruded into a bath and then dried. In some ways, acrylic imitates wool. It has wool's warmth and softness, but does not absorb water. Instead, acrylic wicks moisture to the surface where it evaporates.