Molded fiber pulp packaging material is environmentally friendly packaging that uses recycled paper products such as paperboard, newsprint and other post-consumer and post-industrial waste. These items are shredded and mixed with water to form a slurry, which is then vacuum molded to draw out excess moisture. At this point, the molded parts are 75% water and 25% paper. In order to remove this remaining water, the parts are dried in an oven. The final products are fast-food drink or cup trays, egg trays or filler flats, egg cartons, a wide array of protective packaging for consumer and industrial products, as well as disposable plates, bowls, plant trays and clamshell containers.
The molded paper pulp industry is very diverse, and uniformly drying non-uniform molded fiber pulp shapes and complex geometries can be tricky for short-run product manufacturers. Wisconsin Oven manufactures paper pulp drying ovens that use high-velocity convection technology to evaporate the moisture from the molded parts with heated air. Paper pulp drying ovens are available in multiple heating zones and heat recovery systems can be offered for even better efficiency. We offer molded fiber pulp packaging drying solutions for both thick wall (Type 1) and thin wall (Transfer Mold or Type 2) product manufacturing lines. Whether you are considering a new line installation or the replacement of an existing process dryer, Wisconsin Oven can offer unique drying solutions to meet each challenge.