Metal Woven Mesh for Process of Molded Pulp

Pulp molding is a material that has undergone special processing techniques. It is mainly based on fiber raw materials such as recycled waste paper, wheat straw, sugarcane bagasse, etc. These raw materials undergo grinding, selection, and grinding processes to disperse the fibers in water, forming a uniform pulp suspension. Then, using the mold, the pulp is adjusted into the mold through adsorption or vacuum pressure, formed and dried to obtain a product with a certain shape and strength.

Its advantages are natural biodegradability, environmental friendliness, and the ability to produce various complex shaped products according to mold design. It is widely used in packaging fields such as egg racks, electronic product packaging, and fragile product cushioning pads.

Metal woven mesh plays an important role in pulp molding production, mainly reflected in the following aspects:

 Assisted molding:

In the suction molding process, after the mold is immersed in the slurry pool, vacuum is used to extract the slurry through the mold holes. The metal woven mesh intercepts the fiber raw materials in the slurry, causing them to adhere to the mesh and form the initial appearance of the product, helping to shape the shape of the product.

Impurity filtration:

Metal woven mesh plays a certain filtering role in impurities in pulp, preventing larger particles from mixing into pulp molded products, thereby improving product quality.

Uniform dehydration:

Its good breathability and permeability help to evenly discharge moisture into the pulp, making wet embryos dehydrated evenly and quickly formed, avoiding problems caused by uneven dehydration such as product deformation and cracking, and improving product qualification and production efficiency.

Improving product strength:

During the pulp molding process, metal woven mesh can provide certain support and tension for pulp fibers, improve the structural strength and toughness of the product, enable the product to better withstand external forces, and reduce damage during transportation and use.The surface of the metal woven mesh is relatively smooth, which can reduce the adhesion of pulp to the mold, making it easier for the formed product to separate from the mold, facilitating subsequent processing, and improving production efficiency.

Dashang Wire Mesh is a professional manufacturer of stainless steel woven mesh. So, what is the common metal woven mesh in pulp molding production?

Plain woven mesh

Stainless steel wire is smooth and free of burrs, with a clean and smooth mesh surface. After weaving, it undergoes vacuum elimination heat treatment and is widely used in dry pressing forming processes. Specifications: Stainless steel mesh 40 x 0.18 mm x 0.5 m (or 1 m) x 30 m, 50 mesh x 0.19 mm x 1 m (or 0.5 m) x 30 m.

Twill woven mesh

The surface of metal woven mesh is smoother and has a higher diagonal stretching rate on one side, making it suitable for some soft and stretched products that require mesh, such as tableware. The commonly used specifications are 40 × 0.15 × 1.2 × 30 meter grid, 40 grid × 0.17 × 1.2 × 30 meter grid, etc.

5 heddles weaving mesh

Stainless steel woven mesh 5 heddles are very soft and have a particularly strong stretch rate, suitable for making structurally complex water cups, deep bowls or tableware, as well as simple wet pressed products such as 40 mesh x 0.15 to 0.19 x 1.2 x 30m, 40 mesh x 0.21 x 1.2 x 30m and other specifications.

Herringbone woven mesh

Its pattern is in the form of a "人" and is suitable for most tableware.

Dashang Wire Mesh specializes in producing stainless steel mesh. We can customize woven mesh with different patterns according to customer needs and perform vacuum annealing treatment to make the stainless steel mesh easier to form.