Emery is a world leader in the production of high quality, pulp moulded products for a variety of applications. Its pulp moulding machines convert waste paper, cardboard and paper sludge into a wide array of functional moulded products. Among them are egg trays, apple trays, egg cartons, carry out trays for fast food, flower pots, packaging material for electronic equipment, and other industrial packaging. All of these products can be produced from recycled waste paper, corrugated cardboard, and paper sludge, and are themselves both recyclable and biodegradable. Preliminary test results suggest that electronic equipment such as computer monitors protected by moulded fibre packaging can be as well or better protected than with traditional polystyrene packaging.
Machine dies can be custom designed to produce any number of pulp moulded products.
Auxiliary equipment for hot pressing, printing or laminating can be incorporated to produce higher quality products and finishes. Figure 1 shows a range of products. The pulp moulding process begins with a batch pulper that beats the waste paper product to a uniform consistency and dilutes it to achieve a consistent pulp stock. Wax and rosin are added, which form part of the solid content of the final pulp stock. After cleaning, aluminum sulphate and optional colouring dyes are added to the mix.