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.
Swellable paper is designed for high-quality photo printing--the coated surface actually swells as it absorbs ink. Cotton rag is ideal for inkjet printers that use pigment-based inks; most low-cost inkjets, on the other hand, use dye-based ink, so you should steer clear of cotton rag in this instance.