Identification of acrylic yarn and wool by combustion

Acrylic yarn: soften, shrink, melt, and then burn slowly in case of fire. The flame is yellow-white and has a flash. It emits an acrid smell like coal tar. It can continue to burn away from the fire but at a slow speed. The ash is irregular brown hard lump or black small hard ball, brittle and fragile.

Wool: it curls first and then smokes, and then bubbles and burns. The burning speed is lower than that of cotton. The flame is orange and has a pungent smell of burning hair. It stops burning immediately after leaving the fire. The ash is irregular or spherical, shiny black brown brittle pieces, which are crushed into powder after pressing. The amount of ash is large.

Acrylic yarn is often used to make carpets and wool because of its soft feel and good bulkiness. Blended with natural fibers, acrylic yarn can be widely used in various decoration, industrial fields, curtain and other industries, which is inseparable from its good weather resistance and mildew resistance. Acrylic yarn can also be used to make clothes, plush and artificial fur, etc. The thermal insulation performance of acrylic yarn is inseparable. These are some uses of acrylic yarn.