Casting process waste sources

However, cellulose has an attractive combination of mechanical and thermal properties extracted from various plant sources. Extracted cellulose performs as a raw material in many packaging industry applications such as biocomposites, nanocomposites, coatings, films, etc. The process of converting cellulose to these products is quite complex. For example, to convert wood pulp to film, it rmdergoes a series of chemical processes to break the pulp down to a viscose liquid. This liquid is filtered in order to minimize waste and maximize the purity of the material to ensure the best film quality possible. The viscose is extruded and then cast along a series of rollers and baths, during which the film is cleaned and softened in order to ensure the right optical and mechanical properties. 

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