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.
However, due to cost factors, availability, and ease of use, polyester is the best and least costly fabric available for graphic printing. If you have a dye sublimation printer and heat press, by all means, experiment with it. You might discover something new!