MODULUS
The amount of force it takes to stretch a material a unit distance. It is a measure of elasticity. An extensible material or fiber has a low modulus. Stiff materials…
MIL
One thousandth of an inch. Used to measure the diameter of fibers and the thickness of films.
MICRON
One millionth of a meter. In the context of nonwovens, the micron unit of measure is generally used to describe the width of low denier fibers, such as melt blown…
MEMBRANE FILTER
A permeable or semi-permeable membrane made of metal, polymer or other materials. These filters are capable of separating micron and sub-micron size particles from liquids and gases.
MELT SPINNING
Production of filaments by melting and extruding polymer. It is a general term that encompasses both SPUNLAID ( SPUNBOND), MELTBLOWN, and FLASHSPUN nonwoven technologies, as well as filament yarns.
MELTBLOWN NONWOVEN
A meltblown web bonded by one or more techniques to provide fabric integrity.
MELTBLOWN
The process by which a gas or liquid is taken up by the surface of a material. An adsorbent nonwoven wicks and holds the gas or liquid between the fibers.
MELTBLOWING
A method in which a molten polymer is extruded into a high velocity hot gas stream that converts it into fibers. The molten plastic is blown with hot, high velocity…
MEDIA, MEDIUM
The process by which a gas or Synonymous with filter material. “Media” is the plural of “medium.” It is common today to use media as the singular and “medias” as…