What is Pulp Molding?

Release time: 2023-03-03    Time visited:478

Pulp molding is a technology that uses fiber quality materials for molding processes. The cellulosic material usually comes from waste paper, bagasse, bamboo, hemp, etc. It undergoes a series of processing to make a slurry-like paste, which is then processed into various shapes through molds.

This processing method can produce products of various shapes, including paper plates, paper bags, paper bowls, paper chopsticks, etc. It is increasingly popular because it is environmentally friendly, recyclable and biodegradable.

The process of pulp molding includes several key steps, such as recycling of waste paper, fiber preparation, fiber blending and molding. Among them, fiber preparation is the key to making high-quality pulp products. Fiber preparation is usually carried out using mechanical grinding and chemical pulp methods, which can make the fiber material better dispersed and suspended in water, allowing the fiber to be better mixed with other raw materials and achieve better molding results.

When blending fiber materials, it is necessary to choose the appropriate fiber type and fiber ratio according to the different requirements of the product. When molding, the blended fiber material needs to be injected into the mold and molded under proper temperature and pressure, and then after subsequent processing, such as drying, painting, perforation, stamping, etc., the final product is made.

Pulp molding technology has many advantages, such as

Environmentally friendly: Using pulp as raw material can effectively reduce waste and environmental pollution, which meets the current requirements of environmental awareness.

Recyclable: Pulp products can be easily recycled and reused, reducing waste and also helping to reduce costs.

Biodegradable: Pulp products are a biodegradable material that can be naturally decomposed without causing pollution to the environment.

Low cost: Since pulp materials are widely sourced and relatively inexpensive, production costs are also low.

Good plasticity: Pulp molding can make various shapes, such as round, square, rectangular, etc., which can meet different needs.

Pulp molding technology is now widely used and has a wide range of applications in many fields such as food packaging, medical and household, for example

Food packaging: Pulp molded plastic products can be used as various food packaging, such as meal boxes, lunch boxes, cake boxes, etc., and also as tableware, such as tableware sets, tableware trays, etc.

Medical supplies: Pulp molded plastic products can be used as medical supplies, such as masks, surgical gowns, medical appliances, etc., with certain biodegradability and environmental protection, in line with the requirements of medical supplies.

Household products: Pulp molded products can also be used as household products, such as flower pots, storage boxes, garbage cans, etc., which are beautiful and practical, and can also play a certain decorative role.

The application prospect of pulp molding technology is very broad. With the increasing awareness of environmental protection, pulp molded products will gradually replace traditional plastic products and become a more environmentally friendly and sustainable choice. At the same time, with the continuous improvement of production technology and cost reduction, the application scope of pulp molding products will also continue to expand.