Mesh

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A tea strainer made of metal mesh
Metal screen mesh

A mesh is a barrier made of connected strands of metal, fiber, or other flexible/ductile materials. A mesh is similar to a web or a net in that it has many attached or woven strands.

Types of mesh

  • A plastic mesh may be extruded, oriented, expanded, woven[1] or tubular. It can be made from polypropylene, polyethylene, nylon, PVC or PTFE.
  • A metal mesh may be woven, knitted, welded, expanded, photo-chemically etched or electroformed (screen filter) from steel or other metals.
  • In clothing, a mesh is often defined as a loosely woven or knitted fabric that has a large number of closely spaced holes. Knitted mesh is frequently used for modern sports jerseys and other clothing.
  • A mesh skin graft is a skin patch that has been cut systematically to create a mesh. Meshing of skin grafts provides coverage of a greater surface area at the recipient site, and also allows for the egress of serous or sanguinous fluid. However, it results in a rather pebbled appearance upon healing that may ultimately look less aesthetically pleasing.[2]
  • Fiberglass mesh[3] is a neatly woven, crisscross pattern of fiberglass thread that is used to create new products such as tape and filters. When it is used as a filter, it is not uncommon for the manufacturer to spray a PVC coating to make it stronger and last longer. The most common place to find fiberglass mesh is in tape products.

Uses of mesh

  • Meshes are often used to screen out insects. Wire screens on windows and mosquito netting are meshes.
  • Wire screens can be used to shield against radio frequency radiation, e.g. in microwave ovens and Faraday cages.
  • Metal and nylon wire mesh filters are used in filtration.
  • Wire mesh is used in guarding for secure areas and as protection in the form of vandal screens.
  • Wire mesh can be fabricated to produce park benches, waste baskets and other baskets for material handling.
  • Woven meshes are basic to screen printing.
  • Surgical mesh is used to provide a reinforcing structure in surgical procedures like inguinal hernioplasty, and umbilical hernia repair.
  • Meshes are used as drum heads in practice and electronic drum sets.
  • Fence for livestock or poultry (chicken wire or hardware cloth)
  • Humane animal trapping uses woven or welded wire mesh cages (chicken wire or hardware cloth) to trap wild animals like raccoons and skunks in populated areas.

See also

References

  1. Synthetic woven wire mesh Information on polyester and polypropylene wire cloth
  2. emedicine >Skin, Grafts Authorr: Benjamin C Wood. Coauthor(s): Christian N Kirman. Updated: Jan 29, 2010
  3. Fiberglass mesh Fiberglass mesh

External links