The density of a material divided by the density of water. Expressed as a number greater than 0. Materials with specific gravity less than 1.00 will float and materials with specific gravity greater...
Fabric is mounted flat and rubbed in a figure eight-like motion using a piece of worsted wool cloth as the abradant. The number of cycles endured before the fabric shows an objectionable change in...
Some polymeric fibres are spun by melting the polymer to a liquid state. The liquid is forced through the spinner opening under pressure and cooled by a jet of air to form the filament. Nylon can be...
The property of fibers that measures strength. This is determined by the force required to rupture of break the fiber. Typically, this is measure is grams per denier, or g/d. Tensile strength measres...
Mercerisation alters the chemical structure of the cotton fibre. The structure of the fibre changes from alpha-cellulose to beta-cellulose. Mercerising results in the swelling of the cell wall which...