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Glossary
    in Terms
    in Terms & Definitions
 
Filament count:
the number of filaments which make up a thread or yarn.
Last referenced in: Global technical textiles business update, 1st quarter 2009 (Technical Textile Markets Issue 76)

Filament yarn:
a yarn consisting normally of a bundle of continuous filaments. The term also includes monofilaments.
Last referenced in: A strong future for carbon, glass, synthetic and natural fibre textiles in composites (Technical Textile Markets Issue 96)

Filamentation:
breakage of filaments, resulting in the creation of a fibrous or hairy appearance on the surface of a yarn package or fabric.
Last referenced in: Sewing needles and threads for technical textiles (Technical Textile Markets Issue 93)

Filigree:
fine, intricate jeweller's work in gold or silver wire or a printed or embroidered pattern of swirling motifs resembling such work.

Fill:
see weft.
Last referenced in: Statistics: fibre consumption for technical textiles in the USA, 3rd quarter 2008 (Technical Textile Markets Issue 74)

Filling:
see weft.
Last referenced in: Survey of the European yarn fairs for autumn/winter 2014/15 (Textile Outlook International Issue 165)

Filter cake (geotextiles):
the graded soil structure developed upstream of the bridging particles on a geotextile acting as a filter.

Filtration (geotextiles):
the process of retaining soil particles by a geotextile while allowing the passage of water. The geotextile allows the water and finer soil particles to pass through while retaining those of a coarser nature. A filter cake builds up on the face of the geotextile and this is where the actual filtration of the soil particles occurs. In order to perform this function a geotextile must be able to convey a certain amount of water across the plane of the geotextile throughout its design life.
Last referenced in: Global technical textiles business update, 1st quarter 2014 (Technical Textile Markets Issue 96)

Finish oil:
oil that is put on a yarn, either flat or textured, to reduce friction during subsequent processing stages.

Flame resistant:
a term used to describe fibres, yarns or fabrics which resist burning.
Last referenced in: Performance apparel markets: product developments and innovations, 1st quarter 2014 (Performance Apparel Markets Issue 48)

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