Anti-fatigue elastic fabric

Abstract

An elastic fabric with anti-fatigue property, with three types of constituent yarns, in which the first type of yarns is made of chemical filaments, the second type of yarns and third type of yarns are elastic yarns made of the same or different materials, but preferably having different fiber densities, and the first type of yarns and second type of yarns form a number of locking nodes via inter-looping of the yarns and the second type of yarns and third type of yarns form a number of locking points by melting of the yarns during a heat treating process.

Description

CROSS-REFERENCE TO RELATED APPLICATION[0001]This application claims priority to Chinese Patent Application No. 201210266021.9, filed Jul. 27, 2012, the contents of which are hereby incorporated by reference.FIELD OF THE INVENTION[0002]This invention relates to the textile and garment industry. More particular, it relates to a warp knitted elastic fabric that can withstand external forces exerted by stretching and washing actions and maintain flatness and smoothness and thus has a wide range of applications in production of underwear and sportswear. It also relates to a method for making such fabric, which relies on forming special elastic yarn loops and cross-linking them under heat treatment so as to prevent loop movement when under the influence of external forces.BACKGROUND OF THE INVENTION[0003]At present, warp knitted elastic fabric is widely applied to ladies' underwear, corset, etc, as they generally attach great importance to shaping and maintaining a good profile of the bod...

AI Technical Summary

Benefits of technology

The present invention designs an elastic fabric with great durability and the ability to withstand multiple stretches and washings. Additionally, this fabric can be produced with different levels of glossiness and external visual effects. Its unit area is between 100 g / m2 and 260 g / m2, and its thickness can range from very thin to very thick. This makes it suitable for various applications in the garment industry.

Problems solved by technology

However, the fabrics made in accordance with the aforesaid method have an inevitable defect in terms of elastic performance.

It was found that it cannot resist external forces such as multiple stretches and repeated washings, often leading to serious quality problems due to the failure in resisting the fabric fatigue.

For example, spandex yarns may move out of place in the fabric and form bulges or unevenness, and some yarns may even break when the fabric goes through tensile fatigue test (7500 times of stretches).

These defects affect the appearance and service time of the garments.

The quality problems induced by repeated stretches and washings are brought about by the same underlying fact: relative movement of the filament yarns with respect to elastic spandex yarns under the external forces, which causes the fabric to lose the original shape and results in severe damage of the cloth.

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