Newsprint

Newsprint is low-cost, low-quality, non-archival paper. It is generally made by a mechanical milling process, without the chemical process that is usually used to remove lignin from the pulp. The lignin causes the paper to rapidly become brittle and yellow when exposed to air and/or sunlight. Increasingly, newspaper is made from recycled news paper. Presently, more than half of the world's output of newsprint is manufactured from recycled fiber. This poses the question, whether the trend to even more recycling in newsprint is sustainable. Major paper machines, producing newsprint, now have speeds in the 2,000 m/min range. The technology requires that a certain minimum amount of reinforcing fiber (long fiber pulp) is present in the papermaking stock. Considerable quantities of newsprint in Canadian and Scandinavian mills continue to be produced from virgin fiber (softwood, i.e. long fiber species). This is virgin newsprint - this commodity is consumed, along with recycled newsprint,... full article at wikipedia