Bias is a term used to describe a fabric or garment that has been cut diagonally across the grain rather than parallel to the weave. This results in a material that has more stretch and drape than...
(Ultraviolet Protection Factor) The UPF rating indicates how effective a fabric is at blocking out solar ultraviolet radiation from reaching the skin. UPF ratings range from 15 to 50 with higher...
The process of introducing dye (or pigment) into the molten plastic or solution from which yarns are produced to manufacture coloured yarns rather than the usual white ones. Because no extra dyeing...
Indentation Load Deflection (ILD) refers to the firmness of a piece of foam. The lab puts a 4" x 15" x 15" piece of foam on a flat surface. Then a round metal plate, 8" in diameter, pushes down on...
A marked change in the colour of an object with a change in the spectral composition of the light by which it is viewed.
NOTE:
Metamerism can be judged only with reference to the changes occurring...