Resistance to acids : Good Resistance to alkalies : Low; many alkalies destroy the fiber. Sunlight : Prolonged exposure deteriorates fiber Insects : Damaged by moths and carpet Beetles. To flame : Burns slowly when in direct flame, is considered to be self extinguishing.

3. Draw side seam lines as shown. 3. To increase the shoulder width of a blouse: 1. Slash from the shoulder downward the armhole, then across almost to the side seam. 2. Spread the slashed edges to the correct amount and pin to a piece of paper.