Glossary - International Paper

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Hygroscopic - Ability to absorb water vapor from the surrounding atmosphere. -I- Impression - In printing, the pressure of the blanket or plate contacting the paper. Integrated mill - A paper mill which manufactures enough pulp to supply its own papermaking needs. Intermodal - The use of multi-modes of transportation, such as TOFC, to move product to a designated location. Inter-trim - Two or more orders combined to trim the machine. Internal bond strength - Determines how strongly the coating is fused to the body stock. Caused by long periods of hydration, paper with high internal bonding strength resists picking during the printing process. -J- Jordan - A refining machine consisting of a conical rotor and housing between which the fiber slurry is passed. Its effect is to shorten the fibers and improve sheet formation. Jumbo roll - Roll size that does not require off-machine rewinding. -K- Kaolin - White clay mass primarily composed of the clay mineral, kaolinite. In refined form, it is used as a coating filler, and as an opacifying agent for paper making. Its important properties are plasticity when wet and hardening when baked or fired. Kaolin retains its whiteness after firing. Air Knife coating - Coating applied to a web of paper with the excess coating removed by a thin layer of air. Kraft process - The predominant method used for converting a wood chip into wood pulp. It produces a strong pulp needed for high-speed paper machines, presses and converting equipment. Glossary For more information, please contact: International Paper Coated Paperboard Business 6420 Poplar Avenue Memphis, TN 38197 Toll Free: (888) 815-4873
-L- Laminated - Paper that is developed by fusing one or more layers of paper together to the desired thickness and quality. Lignin - One of the major components of wood. This is the “glue” which binds cellulose fibers together to give a tree its rigidity. This material is hydrophobic, or “water-hating”, rendering the fiber too rigid for most papermaking applications. Hence, the need to separate and remove this wood component from cellulose fibers. Load on end - Rolls loaded so that end or flat portion of rolls is resting on conveyance floor. Load on side (rolling position)- Rolls loaded so that side or rounded portion is resting on conveyance floor. LTL - Less than truckload. -M- MICR - Magnetic Ink Character Recognition. Twelve stylized characters which must be printed using metallic ink. Machine clothing - Paper machine felts and wire are often referred to as “clothing”. Machine coated - Paper coated one or two sides on the papermaking machine. Machine direction - Establishes the grain direction which is always parallel with the travel of the paper over the wire. Also see cross direction. Machine trim - Refers to the width allowed across the paper machine. Always a min and max allowed depending on basis weight and grade. Each machine has a specific number of cuts/slitters. Market pulp - Pulp which is sold on the open market. Some paper and board manufactures with pulp producing facilities sell all pulp in excess of that which is required for their paper making operations. Thus, they are paper manufacturers and sellers as well as pulp manufacturers and sellers. Glossary For more information, please contact: International Paper Coated Paperboard Business 6420 Poplar Avenue Memphis, TN 38197 Toll Free: (888) 815-4873
Page 1 and 2: -A- Acid-free paper - A paper havin
Page 3 and 4: Bristol board - A printing substrat
Page 5 and 6: Curl - Waviness, roll or curvature
Page 7 and 8: -E- Elmendorf Tear Test - A test to
Page 9: Green liquor - The intermediate che
Page 13 and 14: Offset - Refers to paper that is ma
Page 15 and 16: Reel - The roll on which the finish
Page 17 and 18: Sizing - The property of paper rela
Page 19 and 20: Tear - This test measures the amoun
Page 21: Wet strength papers - Once wet, ord

Glossary - International Paper

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