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  1. Home
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  3. Fiberglass Glossary

Fiberglass Glossary

Includes the most important technical terms regarding glass fiber products, their production process and their applications


A - C
D - F
G - L
M - P
R - S
T - V
W - Z

W

Warp
Yarns lying in the lengthwise direction of the fabric (0° direction) (according to ISO/DIS 13922).
Warping
Operation in which a predetermined number of parallel and equally tensioned yarns or ends are pulled from a creel and wound by a warper on a large spool, called a beam, to make up the section beam.
Weave pattern
The way in which warp and weft threads cross each other. Web flat structure made with filament that is laid, with or without orientation, and held together by appropriate means (according to ISO/DIS 13922).
Weft
Yarn running crosswise to the warp in a fabric (also known as fill, pick).
Winder
A machine with a rotating cylinder that draws glass into filaments and winds them into package form as a cake or roving.
Woven fabric
A reinforcement filament fabric made by interlacing at least two sets of threads perpendicular to each other or at some other specified angle, such interlacing being formed during weaving on a loom or weaving machine (according to ISO/DIS 13922).
Woven scrim
A flat structure in which both warp and weft yarns are widely spaced and woven according to a plain weave pattern.

Y

Yarn
A general term covering all specific types of textile structures, with or without twist, made of continuous or discontinuous filaments (according to ISO/DIS 13922).

Z

ZeroTwist® products
Glass filament products manufactured with no intentional twist.
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