These tensile properties are quite adequate for textile applications. It was used in nylon stockings during wartime, but even after the war became preferred over silk, and quickly replaced silk in most hosiery.Nylon is made of polymers known as polyamid… Nylon fibre has a density of 1.15 g/cm³. Nylon polymers can be mixed with a wide variety of additives to achieve many different property variations.
Regular nylon 6 fiber has a tenacity of 4.4–5.7cN dtex −1 and initial modulus of 1.96–4.41 GN m −2.

It is one of the lightest textile fibres is at the same time also one of the strongest. The fibers have excellent toughness, abrasion resistance, and are easy to wash, and to dye in a wide range of colors. It is one of the fibres which are added at the points of wear such as knees and seats of jeans and toes and heels of socks.

Nylon is a man-made synthetic fiber that is strong while very light in weight, properties that lead to a wide variety of uses, such as fabric, rope and luggage.This fiber was first introduced in the 1930s as an early substitute for silk; it eventually became the fiber of choice for women's stockings. Tenacity: 6.0 – 8.5 gm/den; Density: 1.14 gm/c.c; Elongation at break: 15 – 45%; Elasticity: Very good; Moisture Regain (MR%): 3.5 – 5%; Resiliency: Good High-strength nylon fiber for industrial application has a tenacity of and initial modulus of 2.75-5.00 GN m −2. Mechanical properties of nylon fibers are also quite strongly temperature dependent. The strength of the nylon fabric is lost when wet.

Nylon has a high strength to weight ratio. Characteristics of Nylon F iber: Expetionally strong ; Elastic. Nylon Fibre has an unique importance in the textile industries.

It is made of repeating units linked by amide links similar to the peptide bonds in proteins. About 8 billion pounds of nylon are produced each year in the U.S. Nylon is an artificial fiber. Nylon is a thermoplastic silky material that can be melt-processed into fibers, films, or shapes. Abration resistance ; Luster ; Easy to wash ; Dyed in wide range of colour ; L ow in moisture absorbancy ; F ilamert yarn provides smooth, soft, long fabric ; Spun yarn fabric give light weight and warmth ; Resilient ; Resistance to damage oil and many ressitance ( acid & alkali)
Its a type of Man-made fibre which comes under the class of Synthetic fibre. This reflects the thermal stability of the critical hydrogen bonds in nylon and also the increased flexibility of methylene chains at elevated temperatures. Nylon fibers are exceptionally strong and elastic and stronger than polyester fibers.

In case of the Nylon Fibre moisture … Like other synthetic fiber, nylon 6 has some physical and chemical properties which are described below.