CORDURA is a dense nylon fiber of the American chemical concern Invista (formerly DuPontTextiles & Interiors), which has a special fabric structure, water-repellent impregnation and polyurethane coating.
Today, cordura material is produced in several factories in the world, but due to the high cost of raw materials, it is produced to order in several batches.
What is cordura: general characteristics of the fabric
Cordura material is processed in several stages, which allows you to get a high-quality canvas at the exit, where the coating lasts for a long time. Sometimes a small percentage of cotton is added to a nylon thread. This affects the appearance (pile appears, the surface becomes shaggy) and the quality characteristics - increased wear resistance.
Fibers get a different thickness (the densest material is cordura 1000), for this they are folded several times, twisted to achieve a certain thickness and strength of the threads.
The main characteristics of the synthetic cordura fabric include:
The density of the material is from 100 denier to 1000 denier (in the description of fabrics there will be a mark, say, cordura 600 (cordura 600d));
Reinforced water resistance - more than 5 thousand mm;
WR and PU coating is applied in layers in several stages, which enhances the durability of the fabric;
Melting point Cordura - 210-245 ° C;
"Breathing" (breatheability) indicators - 500 g / m? per day;
According to the Stoll test (StollTester) wear resistance at the level of 7.6 thousand revolutions.
It is these characteristics that have allowed innovative material to become a means of enhanced protection. At first it was used only for the army, after which they began to produce shockproof knee pads and elbow pieces, body armor, unloading vests, covers, backpacks, military clothes and special equipment for civilians.
Over time, for example, the cordura 500 (cordura 500) began to be used in the production of work clothes, shoes, clothing for tourists, lovers of extreme sports. The fiber in the manufacturing process receives a variety of textures, including gloss, fleece, etc., is dyed in a wide range of shades, prints.
Advantages and disadvantages of cordura
The fabric of the American company Invista was developed in accordance with the current standards of ETSA (Textile Service Association in Brussels) for materials that are later supplied for the production of workwear.
The advantages of this high-quality and heavy-duty fabric include:
simplicity in leaving;
Corduran fabric crumbles during cutting;
a variety of assortment of clothes, beautiful appearance;
the correct balance between the weight and strength of the threads;
cordura fabric is resistant to chemical elements;
with prolonged use, the material does not form leads and spools;
the fibers are not deformed.
Like any other synthetic material, cordura has disadvantages. This is an expensive and heavy fabric, which in the cold, due to special impregnation, dubes. The waterproof function of Invista threads depends on the type of impregnation used in the manufacture. It is also worth noting that the fabric dries for a long time and ages from exposure to UV radiation. According to fishermen and hunters, Condura backpacks having a high fiber density noticeably crack when moving due to friction of parts.