This product is produced from various fibers and materials such as fiberglass and Kevlar (aramid).
First, we will examine the fiberglass and Kevlar fibers to get more complete information about the product.
Fiberglass is a type of material that is made by joining several small glass fibers together. These strands are bonded together using chemicals and become a stronger strand, with more cohesiveness.
Fiberglass fibers can be produced and used in different sizes. After being woven in a smaller size, this product can be turned into fiberglass yarns and slightly larger into fiberglass ropes, and if it is much larger, it can be turned into fiberglass fabrics, which is the type of work of these materials They differ according to their volume and size.
Chemical structure of aramid Aramid fibers come in many forms and, like glass and carbon fibers, can be used to make composites.
Aramid fibers have been noted for their lightness, good thermal stability and excellent toughness.
Kevlar fibers are made from long molecular chains of polyprophenylene terephthalamide. The high arrangement of the chains, together with the good connection between them, creates a unique combination of properties, some of which are:
High tensile strength and low weight
Short elongation at rupture
High dimensional stability
Low electrical conductivity
High tear resistance
Some are very familiar with Kevlar and fiberglass fibers. Now we are going to examine the product that is made of these fibers.
Sewing thread is produced in two types, wired and wireless, which are slightly different from each other.
Reason for using wire in wire sewing thread: Due to maintaining strength and strength, one or more strands of wire are used in its structure. The presence of this thin wire makes the refractory sewing thread able to withstand more heat, even if the fibers are destroyed due to excessive temperature rise; Its metal thread keeps the sewn product until the new sewing thread is replaced and replaced, and its structure is not separated.
Difference of yarns: The difference between these two yarns is refractory sewing in the presence of a layer of Kevlar. Both types of this product are made of refractory fibers and also use a layer of metal wire, but the difference is due to the Kevlar in its structure. Kevlar in this yarn has increased the heat tolerance as well as anti-wear properties and tensile strength and greater strength in the yarn. It can be used to prepare and produce fireproof gloves, airbags, fire protection clothing, etc.