Virgin paper and other recycled materials can be used directly for the egg tray machine. The composition of wasted paper is very complex, some in straw-based printing material, such in wood-based waste newspaper, some in grass pulp mixed waste cartons. Egg tray produced by the different components have different properties, therefore, to obtain better economic results and performance, different pulp composition can be mixed in the real egg tray production.
The egg tray molding solution in China is called vacuum shaping solution. The molding equipment are a copycat from British Thomson’s two-station molding equipment and transmission type linear automatic production line. Two-position device is currently is mainstream models. It also includes rotary types and reciprocating types.
Rotary type machine has higher level of technique, whose midge process is commonly known as “reverse suck” type, it can adapt to higher productivity and larger products, but the price is slightly higher. The reciprocating type is cheaper in price , the molds sink into slurry tank during production, commonly known as “upper suction” type, it could normally cause uneven thickness in large molding products.