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Textiles Intelligence
Textiles Glossary
  in Terms
  in Terms & Definitions
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Heald shaft:
a frame in which a large number of healds are mounted. Typically a loom contains two or more heald shafts, depending upon the complexity of the weave pattern required. The heald shaft is raised or lowered by means of cams or a dobby mechanism to form a shed and to create different weave patterns.

Heddle:
another word for heald.

Hemp:
a light-coloured, strong bast fibre obtained from the hemp plant Cannabis sativa.
Last referenced in: Composites and Technical Fabrics: The Potential for Flax and Hemp (Technical Textile Markets Issue 72)

HEPA:
high efficiency particulate air (filtration).

Herringbone:
a broken twill weave giving a zigzag or herringbone effect.

Heterofilament:
a filament made up of more than one polymer.

High loft:
textiles which are three dimensional, being thick but very light. The term is also applied to the fillings used in outdoor clothing to denote those which retain a large volume of still air.

Highly oriented yarn (HOY):
see fully drawn yarn.

HMPE:
high modulus polyethylene.
Last referenced in: Fibres for Technical Textiles: Para-Aramids and High Performance Polyethylene (Technical Textile Markets Issue 60)

HMWPE:
high molecular weight polyethylene.
Last referenced in: Global Technical Textiles Business Update (Technical Textile Markets Issue 68)

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