The wearing away by friction. As rubbing against another surface can damage glass filaments, they are coated with a size to prevent filament breakage during manufacturing and further processing.
A collection of parallel strands assembled without intentional twist (according to ISO/DIS 13922).
Large temperature-controlled oven that, through heat cleaning, removes the organic materials applied to the glass filament surface.
A big spool on which a large number of yarns or ends are wound parallel and used for various operations as slashing, weaving, knitting, laid scrim, multiaxial machine and more.
Operation in which yarn ends, pulled from several section beams, are combined by a beamer on a loom beam in order to supply the required number of warp ends specified by the fabric construction.
Binder, Binding agent
Mixture of chemical products (ingredients) applied to strands or filaments in order to hold them in a desired arrangement, for example, in chopped strand mat, continuous strand mat and surfacing mat (according to ISO/DIS 13922).
The shipping package onto which textile strand or yarn is wound, and which can be used in various textile processing (also known as cops).
A planar flat or tubular fabric structure made by interlacing several yarns in such a manner that all yarns lie at an angle other than 0° or 90° to the length direction of the structure (according to ISO/DIS 13922).
A method of interlacing yarns or rovings (according to ISO/DIS 13922).
Platinum and rhodium alloy plate with several hundred holes, from which molten glass flows by gravity.
Yarn made from two or more plied yarns, which have been twisted together in a third twisting operation. A cabled yarn of “n” ends means that “n” plied yarns were used in its construction.
Primary package of glass filament strand wound on a tube (also called a sleeve) placed on the collet of a winder, during the forming stage.
Short cut strands (according to ISO/DIS 13922).
Chopped strand mat
A mat formed of strands cut to a short length, randomly distributed, without intentional orientation, and held together by a binder (according to ISO/DIS 13922).
A rotating cylinder onto which the glass filaments are wound during the forming stage.
Continuous strand mat
A mat formed of uncut strands, held together by a binder (according to ISO/DIS 13922).
Continuous full or partial heat cleaning conducted in a continuous oven.
The number of warp and weft threads per centimeter, counted on a fabric free of tension.
A substance that promotes or establishes a stronger bond at the interface of the matrix resin and the reinforcement (according to ISO/DIS 13922).
Operation that consists of winding the glass yarn around an electrical conductor, in one or more layers, to provide it with an insulating sheath (also known as wrapping).
A structure holding a predetermined number of packages, from which the yarns are pulled smoothly and uniformly for additional processing operations, such as warping, sectional warping, warping sizing, laid scrim and more.
Combustible matter content
The ratio of the mass of material removed on calcinations from a dried textile glass product to the mass of the dried product (according to ISO/DIS 13922). Also called loss on ignition (LOI).
A broken-twill weave, 1-up and 3-down or 3-up and 1-down, with two ends to the right and two ends to the left, commonly referred to as four-harness satin or broken crow (according to ASTM D 579).