Mills can exploit niche market opportunities by improving the printability or surface characteristics of their paper. Such improvements may involve equipment additions or modifications, or the addition of minerals and chemicals within the sheet of paper or on its surface.
Sandwell specialists offer practical experience in the development of value-added papers, finding economical solutions for improvements to both paper and board grades, including linerboard, coated and uncoated printing papers, and specialty grades.
We are familiar with the process technology associated with value-added papers, including SC grades and coated papers. Our expertise extends from the specific pulping requirements through modifications to stock preparation and the paper machine, and the specialized demands of coating, calendering and winding.
Recent assignments include an on-line film coater for a U.S. mill. Current work includes pulp mill modifications, wet-end modifications by the addition of chemicals or equipment, and surface modification through metering size presses or coating applicators and/or calendering.
St. Marys Paper Inc., Sault Ste. Marie, Ontario
SC paper machine and supercalenders
The new No. 5 paper machine is a 184 inch trim twin-wire, SC-B machine of 4,000 fpm capacity. Sandwell provided capital cost estimates, detailed design and construction supervision for the installation, which also included two supercalenders, a new winder, and expansion and improvements to the woodhandling facilities, groundwood mill and screening systems.
Island Paper Mills Company, Vancouver, British Columbia
Coated paper plant
A plant to produce high-grade coated wood-free papers included the installation of a 160 inch trim off-machine coater, super calendering and two single-drum winding facilities, as well as chemical receiving, unloading and processing facilities, a new folio sheeting line and an upgrade of the effluent system.
