Inventors:
Agne Swerin - Warwick NY, US
Michael Herman - Monroe NY, US
Jay C Song - Highland Mills NY, US
Sen Yang - Nanuet NY, US
Peter F Lee - Auckland, NZ
Ladislav Bednarik - Loveland OH, US
Assignee:
International Paper Company - Memphis TN
International Classification:
D21H 17/63, D21H 21/22, D21H 21/16, D21H 21/54, D21H 23/22
US Classification:
162175, 162123, 162135, 162158, 1621641, 1621682, 162169, 1621812, 1621816, 1621818, 1062061, 1062081, 1062111, 1062151, 1062179, 428402, 42840222, 428532
Abstract:
The invention provides a three layered reprographic paper having improved strength, stiffness and curl resistance properties, and a method for making same. The paper has a central core layer made largely of cellulose and bulked with a bulking agent such as a diamide salt. A starch-based metered size press coating is pressed on both sides of the core layer, wherein the starch has a high solid content. The coating forms a three layered paper having an I-beam arrangement with high strength outer layers surrounding a low density core.