Formation of plastic mesh

Extruded Plastic Net Bag

Introduction of types of plastic netting which is widely used in fruit and vegetable packaging.

The plastic netting is processed and made of polyethylene and polypropylene. It has the performances of wear-resisting, corrosion-resisting, fine toughness and long service life. With economic cost, plastic mesh is used in replacement of metal wire mesh in many areas.

 

Plastic netting is also called plastic mesh. Plastic mesh is made using a variety of unique extrusion and/or expansion processes to produce a wide range of apertures (hole sizes), weights, and thicknesses.

Extrusion is a continuous process in which plastic resin pellets are melted and pushed through a die in "meat-grinder" fashion to create a continuous mesh. Extruded netting can be produced in a wide range of configurations ranging from fine filtration-grade netting (resembling woven fabric) to a more coarse extrusion typical of plastic construction fencing.

Diamond Mesh Netting is extruded using counter-rotating dies. Joints are formed when two strands intersect or overlay each other forming a diamond pattern. Two distinct planes (known as flow channels in some applications) are created when the opposing strands overlap. Tooling and processing conditions can create diamond mesh nets with angles ranging from 40 degrees to 105 degrees.

Expanded Mesh is produced by slitting plastic sheet stock in a controlled pattern, then stretching or expanding the width to produce the designated nominal aperture (hole) size. Dimensional measurements for expanded mesh are somewhat different than extruded and oriented mesh (see diagram to right).

Protective sleeve, plastic net bag, bath scrunchie and anti bird netting are plastic mesh. They are all extruded meshes and diamond mesh nettings. Besides, anti bird netting is expanded meshes.

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