Paper and Paper Boards in Food Packaging
Paper and paperboard have been used for food packaging since the 17th century, with a surge in popularity in the late 19th century. Sulfate and sulfite are used to create an interwoven network of cellulose fibers in paper and paperboard. To make paper, the fibers are pulped and/or bleached, then treated with chemicals like slimicides and strengthening agents. Corrugated boxes, milk cartons, folding cartons, bags and sacks, and wrapping paper all require paper and paperboards. Other papers and paperboard goods include tissue paper, paper plates, and cups. Paper Plain The paper has limited barrier characteristics and is not heat sealable, so it is not utilized to protect foods for lengthy periods. Paper is almost always treated, coated, laminated, or impregnated with compounds such as waxes, resins, or lacquers to increase functional and protective features when used as primary packaging. The following are some of the many different types of paper used in food packaging: Kraft paper is a...