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Machine direction<br />
The long direction within the plane of the fabric that is in the direction in which the fabric is<br />
being produced by the machine.<br />
Man-made fibers<br />
Another term for synthetic fibers.<br />
Married fibers<br />
A term used to describe bundles of unopened fibers of a carded or spunlaid nonwoven.<br />
Married fibers are most noticeable in lightweight fabric.<br />
Matrix<br />
In the context of the nonwoven industry, this manufactured fiber is made from two or more<br />
dissimilar polymers combined before or during extrusion. These polymers separate into<br />
random components during extrusion. The bicomponent fibers could be used in through-air<br />
bonded processes.<br />
Mechanical bonding<br />
Bonding a web of fibers by entangling them. This can be achieved by needling, stitching<br />
them with fibers or by entangling them by high-pressure water jets.<br />
Mechanical finishing<br />
Changing the appearance or physical characteristics of a fabric by a mechanical process such<br />
as calendering, embossing, bulking, compacting and creping.<br />
Media area<br />
The total surface area of media used in the production of a filter. Net effective: The measure<br />
of usable media in a filter.<br />
Medium<br />
Medium is synonymous with filter material. “Media” is the plural of “medium.” It is common<br />
today to use media as the singular and “medias” as the plural.<br />
<strong>Nonwovens</strong> <strong>Glossary</strong><br />
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