method for controlling the deposition of organic contaminants from the pulp and papermaking systems using water soluble aminoplast ether copolymers is described herein . the aminoplast ether copolymer can be used alone or in combination with one or more additives . the pulps to be treated include mechanical , chemical , semi - chemical pulps ; sulfide pulp ; recycled old newspapers ; mixed office wastes ; corrugated boxes ; and their combinations . the use of water soluble aminoplast ether copolymers to control or prevent pitch and stickies deposition improves down stream performance of papermaking equipment increasing mill efficiency and improving paper quality .