DOFF
1. (verb) The term used for removing a finished fabric from the machine: Doff the roll, or doffing the roll. 2. (noun) In some regions, the term also refers to…
DIPPING
Immersion of a textile in a finishing liquid (dip) such as dye or binder softener to improve its adhesion or water repellent properties.
DIFFUSION
The movement of molecules or ions through a solution or material in response to differential concentrations or repulsive or attractive forces. References for this information: https://www.inda.org/about-nonwovens/nonwovens-glossary-of-terms/
DIE
A system to produce a thin filament of molten polymer in spunlaid and melt blown technology. A small annular orifice for spinning man-made fibers. References for this information: https://www.edana.org/glossary
DIATOMACEOUS EARTH
A filter media made from diatoms, which are fossils that collect at the bottom of sea beds in prehistoric seas. Also known as “kieselguhr,” the material is characterized by pores…
DEPTH FILTER
A filter medium which is thick and captures particles within the media. See also, SURFACE FILTER. References for this information: https://www.inda.org/about-nonwovens/nonwovens-glossary-of-terms/
DENSITY
Mass per unit volume, i.e. grams/cubic centimeter. Density is different that BASIS WEIGHT, which is mass per square area, not cubic volume. References for this information: https://www.edana.org/glossary
DENIER
The measure of a mass per unit length of a fiber. Denier is numerically equal to the mass in grams of 9000 meters of material. Low numbers indicate fine fiber…
DELAMINATION
Tendency of a fabric to be pulled apart (layer separation) by normal surface forces or shear tensions. References for this information: https://www.inda.org/about-nonwovens/nonwovens-glossary-of-terms/
DECITEX (Dtex)
Weight in grams of 10,000 meters of a fiber. It is one-tenth of a tex (see Tex). Prefixes such as kilo and deci are used when the numbers become too…