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 sulfate-treated paper that comes in a variety of colors and textures, including natural brown, unbleached, and thick heavy-detached white. Natural kraft paper is the most durable of all the papers and is frequently used for bags and wrapping. Flour, sugar, and dried fruits and vegetables are also packaged in it.

  • Sulfite paper—Sulfite paper is glazed to improve its look and boost its wet strength and oil resistance. It is lighter and weaker than kraft paper. It can be coated for better print quality and laminated with plastic or foil. It's used to form little bags or wrappers for biscuits and candy packaging.

  • Greaseproof paper is created by a process called beating, in which the cellulose fibers are exposed to a longer than typical hydration period, causing them to break apart and become gelatinous. These small fibers are then packed thickly to create a surface that is oil-resistant but not water-resistant. Snack foods, cookies, candy bars, and other fatty items are wrapped in greaseproof paper, which is being phased out in favor of plastic films.

Paperboard

Paperboard is stronger than paper, has a higher weight per unit area, and is frequently produced in layers. It's often used to produce shipping containers like boxes, cartons, and trays, but it's rarely used for direct food contact. The following are the numerous varieties of paperboards:

  • Whiteboard—The whiteboard is often used as the inside layer of a carton and is made up of numerous thin layers of bleached chemical pulp. Whiteboard is the only type of paperboard that is recommended for direct food contact and can be waxed or laminated with polyethylene for heat sealability.

  • Solid board—With many layers of bleached sulfate board, the solid board provides strength and longevity. It's used to make liquid cartons when laminated with polyethylene (known as milk boards). Fruit juices and soft beverages are also packaged on solid board.

Ambica Enterprises is a leading manufacturer of paper-based food packaging materials. Our products are made entirely of food-grade materials and keep your food fresh and healthy.
Location: Delhi, India

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