Saint-Gobain Vetrotex

	Description of the process
	Our products available for this process

he weaving machine or loom provides the means to interlace warp and filling yarns according a weave pattern to form a fabric structure.

The yarns system in the fabric lengthwise direction is referred to as the warp. It is supplied to the weaving machine on a loom beam. Warp yarns are often called ends.

The yarns crossing the warp are referred to as weft or filling. On the new loom generation, they are inserted in the fabric by mean of weft feeder allowing a regular unwinding.

Almost any weave pattern can be woven with glass product, the basic patterns are: plain, basket, twill and their derivatives, unidirectional as well leno for producing meshes.



	The weaving process is made of 5 basic mechanisms: Mechanism 1:The let off motion distributes the warp to the loom. Mechanism 2: A warp shedding mechanism moves the warp yarn up and down according the weave pattern. Mechanism 3: A filling insertion system introduces the filling between the openings of the warp yarns (also called shed) carried out by the shedding mechanism. Filling glass products are basically inserted with modern picking system: - air jet - rapier - projectiles - needle ( loom for narrow fabrics) Mechanism 4: a read moved by the beat up motion beats the filling between the warp yarn against the fabric in formation. Mechanism 5: A fabric take up regulates the filling density and the fabric is wound onto a tube on the loom or with a separate winding device.



	Saint -Gobain products sized sized with T3F, T32K/M, T30G/K/M/, T31K, T8G have been specially developed for the new high speed air jet machines allowing high efficiencies as well as an excellent quality. These products, as those sized with T6G/M, 5310C, 876s, 5307G and TD22G, plied yarns , ZeroTwist products have outstanding performance with the other types of insertion system. Texturized and voluminzed products can be also processed on both air jet and rapier looms.