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What Is Molded Pulp – The Define Of Molded Pulp


Molded pulp is a type of packaging material made from recycled paper waste, such as newspapers, cardboard, or other paper products. It is commonly used for packaging fragile items, such as electronics, glassware, and eggs, to provide cushioning and protection during transportation and storage.About pulp molding is a three-dimensional papermaking technology, which uses waste paper as raw material, and molds paper products of a certain shape with special molds on a molding machine. In addition to being used for lunch boxes and tableware, pulp molding is also used for industrial cushioning packaging, and its development is very rapid.

Moulds & Dies For Molded Pulp

The Process Of Mold Pulp


  • The process of making molded pulp involves several steps. First, the recycled paper is shredded and mixed with water to create a pulp. This pulp is then screened to remove any contaminants or large fibers. Next, the pulp is diluted with water to achieve the desired consistency.
  • After that, the pulp is placed into a mold or forming machine, where it is shaped into the desired product, such as trays, clamshell containers, or protective inserts. The excess water is drained away, and the remaining pulp is pressed to remove any excess moisture.
  • The molded pulp product is then dried using various methods, such as air drying or using heat. Once dry, it becomes rigid and retains its shape. The final product is lightweight, biodegradable, and recyclable, making it an eco-friendly alternative to plastic packaging.

Molded pulp offers several advantages. It is cost-effective, as it is made from recycled materials. It also provides excellent cushioning and protection for delicate items, and its shock-absorbing properties help prevent damage during transit. Additionally, it is compostable and breaks down naturally, reducing environmental impact compared to non-biodegradable packaging materials.

Overall, molded pulp is a sustainable and versatile packaging solution that is gaining popularity due to its eco-friendly properties and protective qualities.

The Benefit Of Molded Pulp


1.Sustainable and Environmentally Friendly

Molded pulp is made from recycled paper waste, making it an eco-friendly packaging material. It helps reduce the consumption of virgin materials and diverts paper waste from landfills. Additionally, molded pulp is biodegradable and compostable, breaking down naturally over time and reducing environmental impact.

2.Excellent Cushioning and Protection

Molded pulp provides effective cushioning and protection for fragile or delicate items. Its fibrous structure absorbs shocks and vibrations, minimizing the risk of damage during transportation and storage. It can be molded into various shapes and sizes, providing a customized and snug fit for the product.

Moulds & Dies For Molded Pulp

3.Lightweight And Cost-Effective

Molded pulp is lightweight compared to many other packaging materials, reducing shipping costs and energy consumption during transportation. It is also relatively inexpensive to produce, as it is made from recycled materials and can be manufactured using automated processes.

Moulds & Dies For Molded Pulp

4.Versatile And Customizable

Molded pulp can be molded into a wide range of shapes and forms, making it highly versatile for different packaging requirements. It can be used for various products, including electronics, glassware, consumer goods, food, and beverages. Custom molds can be created to fit specific product dimensions and designs.

5.Easy Handling and Assembly

Molded pulp packaging is easy to handle and assemble. It can be stacked efficiently, reducing storage space requirements. Additionally, many molded pulp products are designed for easy nesting or disassembly, allowing for convenient recycling or composting.

6.Branding And Aesthetics

Molded pulp can be customized with branding elements, such as logos, labels, or embossing, allowing companies to showcase their brand identity. Additionally, molded pulp’s natural and organic appearance can provide a premium and eco-friendly image to consumers.

7.Regulatory Compliance

Molded pulp packaging meets various regulatory standards for packaging materials. It is typically free from hazardous substances, making it safe for contact with food and other sensitive products. It also complies with international shipping and handling requirements.

Moulds & Dies For Molded Pulp – Paper Pulp Molding Dies Factory


BE-CU Prototype is one of the leading mold maker of moulded pulp in China. Together with our customers, we develop paper pulp solutions from first idea and concept design, to prototype stage and final production of finished pulp parts.We have our own mold production and manufacturing workshop, and we can make a set of paper tray molds in two days. BE-CU Mold Department also provides mold development, design and production for customers.Our molds produces outstanding and innovative products to the highest industry standards. As an ISO 9001 certified company, we place great importance to the quality of our products and the professional cooperation with our customers.

The Advantage Of BE-CU Molded Pulp Dies


  • Molded Pulp tooling is now less expensive.
  • Low cost prototype tools provide production-quality samples.
  • Molded pulp production tooling is now available as 3-D printed tools.
  • Existing molded pulp tooling can be used on our molded pulp system.
  • Molded pulp production tooling can now be guaranteed up to five million cycles, extending its lifetime, so costs are reduced over the long term.
  • We use a variety of materials for molded pulp tooling.
  • Single cavity tools for low volume projects.
Moulds & Dies For Molded Pulp

Pulp Packaging Product – The Type Of Molded Pulp


Molded pulp packaging offers a wide range of products that can be used for various packaging applications. Here are some common examples of molded pulp packaging products:

Trays: Molded pulp trays are commonly used for packaging and transporting delicate items such as electronics, medical devices, or fruits. They provide a secure and protective base for the products, preventing damage during transit.
Clamshell Containers: Molded pulp clamshell containers are hinged containers that are often used for packaging items like food, electronics, cosmetics, or consumer goods. They offer protection, easy access, and can be securely closed to keep the contents safe.
Egg Cartons: Molded pulp egg cartons are a classic example of pulp packaging. They are designed to securely hold and protect eggs during transportation and storage. These cartons have individual compartments that cradle each egg, providing cushioning and preventing breakage.
Seedling Pots: Molded pulp seedling pots are used in horticulture and gardening. They provide a biodegradable alternative to plastic pots and allow for the growth of seedlings before they are transplanted into the ground.
Drink Trays and Cup Carriers: Molded pulp drink trays and cup carriers are used in the food and beverage industry to hold and transport cups or containers. They offer stability and ease of handling when carrying multiple drinks, reducing the risk of spills.
Corner and Edge Protectors: Molded pulp corner and edge protectors are used to safeguard the vulnerable corners and edges of products during shipping. They help absorb impact and prevent damage from bumps or drops.
Protective Inserts: Molded pulp protective inserts are custom-designed to fit specific products and provide a secure fit within packaging. They are commonly used for delicate or high-value items like electronics, glassware, or medical equipment to prevent movement and damage during transit.
These are just a few examples of the molded pulp packaging products available in the market. The versatility of molded pulp allows for customization to suit various product types and packaging requirements.

The Basic Requirements For Pulp Molded Dies Materials


The steel used to make molds should basically have the following properties:

  • The manufacturing performance is good, and the local deformation of the heat treatment is small, especially the latter is the most important. Because the shape of mold parts is often very complex, and it is difficult to process after quenching, or it is not suitable for processing at all. Therefore, when selecting mold materials, steel materials with small deformation after heat treatment should be selected as much as possible. Mold parts can also be roughed first, and then quenched and tempered, but the hardness after quenching and tempering should not be higher than HB300, the purpose is to facilitate mechanical processing and combined processing. It doesn’t matter even if the deformation of the material after heat treatment is larger, because the semi-finished blank after rough machining must be finished to meet the requirements of the drawing.
  • Polishability is good. Pulp molded products often require good gloss and surface condition, so the mold must be well polished, and the selected steel should not contain rough impurities and pores.
  • Good wear resistance. The surface gloss and dimensional accuracy of pulp molded products are directly related to the wear resistance of the mold surface, so the mold is required to have high wear resistance. The mold surface has high hardness and can withstand mechanical scratches on the mold during operation.
  • Good corrosion resistance. The wet paper mold and its additives have a chemical corrosion effect on the surface of the mold, so it is necessary to choose corrosion-resistant steel or surface treatment.

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