For cultural reasons, enumerating the precise number of females has been difficult--and estimates of the percentage of females in the population range from 47.5 percent in the 1981 census to 48.3 percent in the 1987-88 Labour Force Survey.
Substrate (printing) Substrate is a term used in a converting process such as printing or coating to generally describe the base material onto which, e.g. images, will be printed. Base materials may include: plastic films or foils, release liner.
Relief Printing - Tools A roller - called a brayer - is used to spread ink on the plate. A sheet of paper is placed on top of the plate and the image is transferred by rubbing with the hand or by being run through a a printing press. The completed print is a mirror image of the original plate. 2.