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.
Label printers use a wide range of label materials, including paper and synthetic polymer (plastic) materials. Several types of print mechanisms are also used, including laser and impact, but thermal printer mechanisms are probably the most common. There are two common types of thermal printer.