Elastic fabric and process of preparation

Abstract

The disclosure provides a woven fabric, wherein all warp and weft yarns may be elastic. One or more of the weft and warp yarns may have a stretchable core comprising a first elastic fiber and a second fiber that may be less elastic than said first fiber. In embodiments, the elasticity of the fabric in the warp direction may be at least 25% and the elasticity of the fabric in the weft direction (Eweft) may be at least 25%. In embodiments, the elasticity of the fabric in the weft direction (Eweft) may be at least 30%. In embodiments, the elasticity of the fabric in the weft direction (Eweft) may be at least 40%.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This application claims priority to European Patent Application No. EP15161213, filed with the European Patent Office on Mar. 26, 2015, which is hereby incorporated by reference in its entirety.[0002]Suitable elastic core spun yarns may be those disclosed in WO2012 / 062480, which is hereby incorporated by reference in its entirety.FIELD OF THE INVENTION[0003]The present disclosure teaches woven fabrics with stretch in the warp and weft directions and the method of its manufacture. It specifically relates to stretchable fabrics including a core spun yarn system and a method for the preparation thereof.BACKGROUND OF THE INVENTION[0004]Elastic woven fabrics have been produced for many years. In order to produce elastic fabrics, elastic yarns are used. In these kinds of fabrics, elastic yarns provide both aesthetic, and elasticity functions. The most common stretchable fabrics are weft-stretch fabrics. Weft-stretch fabrics have non-elastic war...

AI Technical Summary

Benefits of technology

The patent text describes a new type of fabric that can be used in garments. This fabric has stretch properties that make it comfortable and easy to move around. It also has strong body-holding power and shape-recovery abilities. The fabric can stretch up to 150% of its original size after being washed. The fabric is made up of elastic yarns that can stretch and return to their original shape without losing their shape or appearance. The elasticity of the fabric is balanced between the warp direction and the weft direction. This results in better body-holding power, better movement skills, and reduced growth of the fabric and garments made with it. Overall, this new fabric solves the problem of traditional fabrics being too tight or too loose, and offers a more comfortable and shapable option for apparel.

Problems solved by technology

However, weft-stretch fabrics are not stretchable along the warp direction.

Such fabrics are usually comfortable, but their comfort level is not enough during long usage times, as they do not follow the movements of the body.

However, these kinds of fabrics present drawbacks.

Grin-through can be observed as an undesirable glitter-like effect on the surface of the fabric.

The fabric disclosed in U.S. Pat. No. 6,659,139 can also have bidirectional stretch (warp and weft), but the percentage values of stretchability are poor.

Bi-stretch fabrics known in the art also have several problems, such as the growth of the fabric and little recovery after stretching.

However, the fabric disclosed in U.S. Pat. No. 7,762,287 has reduced stretchability in the warp and / or weft direction.

Another problem is the poor behavior of highly elastic bi-stretch fabrics: after few stretch and return cycles, the known fabrics are not able to retain their original aspect.

The fabrics lose their original hand and appearance, and show curling, creasing, and torqueing to such a degree that the garments made with said fabrics have to be discarded after a short time.

A problem of the known bi-stretch fabrics, for example denim fabrics, is that it is difficult to obtain a fabric with an appropriate balance of physical characteristics, suitable for garments able to combine desirable visual and tactile aesthetics, with good performance in stretchability, recovery (i.e. limited growth of the fabric after having been elongated or stretched), and comfort.

For example, fabrics with a high amount of elastic yarns can have the problem of loss of aesthetic qualities, especially because of growth; on the contrary, fabrics with low values of elasticity can be uncomfortable in daily life.

Additionally, prolonged usage of stretch fabrics can cause a loss in recovery power of the fabric, thus causing the growth of the fabric.

Another problem of the known fabrics, for example denim fabrics, is the poor body holding, i.e. body shaping power.

The above problems of recovery power, comfort in use and holding / shaping power of the fabric are particularly present in the final garments that are styled in the so-called skinny or super-skinny models; i.e. models that require a total or almost total adherence of the garment to the body of the user.

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