Pulp made from softwood or coniferous species such as Douglas fir or hemlock. The naturally long fibers of conifers enhance strength properties such as the tear resistance of paper. Mechanical Pulp See groundwood pulp. MICR Magnetic Ink Character Recognition. When this acronym is applied to a grade of paper it means this grade is qualified to be used in MICR applications.
Moisture Refers to the amount of moisture in a sheet of paper.
This figure varies since paper will emit or absorb moisture according to the condition of the surrounding atmosphere. Moisture loss may be noticed in the form of shrinkage which begins at the edges of the paper and moves across the grain causing the sheet to tighten and curl. Mullen Tester Device that measures the bursting strength of paper. High mullen strength is an important property for paper that will be converted to bag or packaging grades. OCR Optical Character Recognition.