Low cost papers such as newsprint made by the mechanical pulping process as opposed to chemical pulping and refining.
Pulp made by mechanically grinding wood to separate the cellulose fibers. Groundwood pulp is used in less expensive papers, such as newsprint, where less strength and brightness are required and lower cost is important.
mechanical wood pulp (stone groundwood, refined mechanical pulp, thermomechanical pulp), having a yield of over 90% and thus containing a great deal of lignin. By extension the term sometimes refers to chemi-mechanical and semi-chemi-mechanical pulp, which have yields of 50-90
Paper pulp created by mechanically grinding logs. This low cost pulp is chemically unstable and should be used only for short term paper needs such as newspapers and magazines.
pulp produced mechanically by grinding logs on a stone;
Paper made from pulp created in one of several processes that use virtually the whole tree. Originally, the tree was simply ground up. Now there are also chemical and heating processes used in pulping. Groundwood paper retains the lignin from the original trees, which causes the paper to yellow and deteriorate relatively rapidly.
Groundwood pulp is created by mechanically "freeing" the fibers from barked logs through a grinding process. The fiber that results has a natural yellowish hue before it is bleached white. The fiber typically used in newprint, publication paper (as in magazines) and in cheaper grades of office paper. Due to it's natural color, the fiber will turn yellow over time, because of this it is considered a contaminate in high grade paper recycling.
A mechanical pulping process which involves the shredding of logs against an abrasive stone (hence stone groundwood).
Newsprint and other inexpensive paper made from pulp created by mechanical grinding of chips rather than chemical refining.
Paper made from pulp created in one of several proceses that use virtually the whole tree. Sometimes chemical and heating process are used in the pulping. Groundwood paper retains the lignin from the trees, which causes the paper to yellow and deteriorate relatively quickly.