Factors Affecting the Forming Quality of Pulp Egg Crates

During the operation of egg crate machine, the forming quality of egg crates is closely related to many factors. The following are two main factors.

Raw materials for producing egg crates

Raw materials for producing egg crates

Raw material is the primary factor to determine the quality of the egg crate. If you don’t have good raw materials, you can’t make high quality egg crates.

White cardboard should be used to produce high-quality fine dyed egg crates, such as pill boxes and cigarette boxes. Common-quality dyed egg crates generally use gray cardboard, such as color boxes for packaging. If there is no color requirement, you can choose a corrugated box with relatively strong fibers. In short, these raw materials have relatively high fiber purity and less impurities to make egg crates with appropriate softness and hardness. If the egg crate is of poor quality, it is easy to regain moisture, etc., the first consideration is the raw material paper.

forming quality of pulp egg crates

The quality control of the production process is very important.

During the production and molding process of egg crates, the storage and flow of pulp in pulping system and the molding structure and performance of the egg crate machine affect the fiber distribution in the paper molded product to a certain extent. The mark of egg crate forming quality is the uniformity of fiber distribution, which is a common forming quality item. It requires the same fiber concentration in a certain area selected arbitrarily on the egg crate. The closer the fiber distribution is to this ideal state, the more homogeneous it is. In fact, the non-directional arrangement and uniformity of fibers can only be achieved by applying sufficient agitation in a very dilute fiber suspension. It is manifested in the dynamic equilibrium of the diffusion of the fibers in all directions of the suspension. However, when the pulp concentration of paper molded products is too large or too small, it is difficult to achieve the uniformity of egg crate.

Therefore, it is necessary to work hard in this process (the storage and flow of pulp in pulping system and the molding structure and performance of the egg crate machine) to produce good quality egg crates.

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