Raw materials play a crucial role in the quality of egg trays. The raw materials used for egg trays include various types of waste paper, such as old newspapers, used corrugated cardboard, paper pulp, books and medicine boxes.
Different raw materials have varying effects on hardness, colour and surface finish; therefore, different processing methods are required to produce high-quality pulp. Domestic market: A Standard grey egg trays are generally made from paper similar to that used in parcel bags. B Standard yellow egg trays are generally made from paper similar to that used in parcel bags, with added colouring. C. Cauliflower-yellow egg trays are usually made from white paper, such as that used for medicine boxes or cigarette packets, with the addition of colouring. D. Coloured egg trays made from corrugated cardboard can be produced using recycled corrugated cardboard or kraft paper, depending on the customer’s requirements for hardness. Overseas Market: A. Newspaper is generally used. B. Cardboard.