Novel Fabric Made of All Elastomeric Fiber and Its Applications

Abstract

The present invention relates to a knitted fabric which adopts a novel weaving principle of changing knitting material structure to realize functions and effects which can not be achieved by ordinary fabric. The knitted fabric comprises the main component of novel woven 100 percent spandex fabric made of 100 percent spandex filament. Presently, elastic rubber pieces, rubber bands, etc., are applied to the underwear at the market for enhancing the elasticity and supporting effect. The common features is that they all have a poor elastic resilience, unstable structure, and prone to distortion and raveling. The present novel knitted fabric changes the principle of crocheting of the ordinary material of the traditional knitted fabric, adopting 100 percent spandex filament as the main material to change the elastic resilience, force, and structure stability of the traditional knitted fabric. The mutual double pulling effect of the knitted fabric in the spandex filament after crocheting is to remedy the defaults of the fabric of which the structure is deformed and the elastic resilience and the force are weakened after the fabric is elongated. Compared with the original fabric, the elastic recovery and the elastic force of the fabric are greatly increased and improved. The weaving process and the features of the novel 100 percent spandex fabric are as follows: (1) Warp yarn and weft yarn which are made of 100% spandex filament material are mutually crocheted. (2) The back weft of the spandex filament is required to pass through a filament packaging frame and a weft yarn accelerating conveyer device is provided. (3) Curling is required to be avoided. The specification of the spandex filament of which the warp yarn used required to be considered, so is the specification and constituents of the back weft made of the spandex filament. The preset novel 100% spandex fabric can completely replace the elastic woven band and rubber piece in the prior underwear to play a role of enhancing the elasticity and strength. It can also completely replace the prior common elastic woven band and rubber piece, providing good hand feel, flatness, smoothness, close fit, sound elastic resilience, comfort wear, etc. It can be widely applied to garment industry, particularly to the underwear, such as brassiere, swimwear, briefs, etc. A strap having a memory function, comprising yarns of substantially 100% spandex. The rubber band and ordinary strap applicable in the present market provide a poor elastic resilience, which would easily deform. The said strap having a memory function weaved with warp yarn made of 100% spandex and weft yarn made of 100% spandex, whose structure could be not only plain weave, but also twill or tracery. The fabric has the “memory” function by which it returns to substantially its original shape after being stretched many times it original size. It can provide excellent hand feel, good flatness, smoothness, close fit, sound elasticity, and comfortable wear when used to replace the existing ordinary elastic rubber bands. It can be widely applied in the garment industry, especially in the field of underwear such as brassiere, swimwear, briefs, lingerie, etc. The present patent for utility model discloses a laminable elastic fabric whose main components are 100% spandex elastic woven band and warp knitted shell fabric or weft knitted cloth, and the elastic fabric is formed through laminating processing. The laminated fabric currently used on the market does not have good elastic resilience and is thus easily deformed and is relatively thick. The new laminated elastic fabric of the present patent is relatively light and thin, and the elastic woven band is formed by interweaving 100% spandex warp threads and 100% spandex weft threads, and the elastic fabric is formed by laminating it to the inner side of the shell fabric. The fabric has a recovery of nearly 100% after many times of use. The fabric laminated with said woven band has the characteristics of excellent hand feel, good levelness, softness and smoothness, close fit, good elasticity, comfortable wear, etc. Meanwhile, the processing is simple, and mechanical automation and mass production can be realized, which complies with the efficiency of market economy.

1 . The present novel 100% spandex fabric changes the weaving principle of knitting material structure to ensure that the fabric fulfills the functions and effects which can not be achieved by ordinary fabric, which is mainly made of the present novel 100% spandex fabric comprising manly with 100% spandex filament. The novel fabric material can have one specification or can have two or more different specifications. The material of back weft can be various mixed specifications. The recovery rate of the novel 100% spandex fabric can reach over 95% after repeated stretching test. The present novel 100% spandex fabric can also quickly return to its original shape and provide durability, which giving a good solution to which the prior underwear suffered from a small recovery rate and insufficient elastic force. 
     
     
         2 . The weaving process and the features of the novel 100 percent spandex fabric are as follows:
 (1) Warp yarn and weft yarn which are made of 100% spandex filament material are mutually crocheted.   (2) The back weft of the spandex filament is required to pass through a filament packaging frame and a weft yarn accelerating conveyer device is provided.   (3) Curling is required to be avoided. The specification of the spandex filament of which the warp yarn used required to be considered, so is the specification and constituents of the back weft made of the spandex filament.   
       The present novel knitted fabric changes the crocheting principle of ordinary material of traditional knitted fabric, adopting 100% spandex filament as the main material to change the elastic resilience, the force and the structure stability of knitted fabric. The mutual double pulling effect of the knitted fabric in the spandex filament after crocheting to remedy the defaults of the fabric that the structure is deformed and the elastic resilience and the force are weakened after the fabric is elongated. 
       Considering that it is difficult for spandex to color and the material is laminated to the inner layer, which is invisible from the outer layer, the material can directly enter the next layer, which is invisible from the outer layer, the material can directly enter the next laminating process without dyeing. 
       The greige strap produced is preset at a high temperature. The purpose thereof is to stabilize the specification of the fabric and avoid deformation and curling of fabric. Meanwhile, since there is a large amount of silicone oil on the surface of the spandex, the oil on the fabric surface can vaporize through presetting at a high temperature. The presetting temperature must be above 192 degrees Celsius. The optimal setting effect can be achieved by adjusting parameters such as temperature and speed according to different thickness. 
       The preset fabric is placed in a vat for fumigation and phenolic yellowing processing so as to prevent unfavorable effect due to yellowing in later storage or use, and is then dried. Since the specification is predetermined in presetting, only a low temperature is required for drying. 
       The processed material or cut piece to be laminated is evenly spread on a cutting table, and glue is evenly applied thereon, and then the 100% spandex strap is firmly bonded between the upper and lower layers of other materials at a high temperature and under a high pressure. 
     
     
         3 . The production of said woven band adopts elastic nylon, terylene and other elastic materials. 
     
     
         4 . The production method of the said woven band comprises all crocheting structure principle in the production of daily life. 
     
     
         5 . The said woven band is applied to underwear, briefs swimwear, etc., after high-temperature laminating. 
     
     
       What is claimed is: 
     
     
         1 . A strap having a memory function, comprising yarns of 100% elastic spandex, Characteristics in that the whole strap is made of spandex without any other fiber. 
     
     
         2 . The strap having a memory function of  claim 1 , characterized in that the warp yarn of said strap is made of 100% elastic spandex. 
     
     
         3 . The strap having a memory function of  claim 1 , characterized in that the weft yarn of said strap is made of 100% elastic spandex. 
     
     
         4 . The strap having a memory of function of  claim 1 , characterized in that the greige strap produced is preset at a high temperature. The purpose thereof is to stabilize the specification of the fabric and avoid deformation and curling of fabric. Meanwhile, since there is a large amount of silicone oil on the surface of the spandex, the oil on the fabric surface can vaporize through presetting at a high temperature. The presetting temperature must be above 192 degrees Celsius. The optimal setting effect can be achieved by adjusting parameters such as temperature and speed according to different thickness. 
       The said strap is required for fumigation and phenolic yellowing processing so as to prevent unfavorable effect due to yellowing in later storage or use. 
       Considering that it is difficult for spandex to color and the material is laminated to the inner layer, which is invisible from the outer layer, the material can directly enter the next layer, which is invisible from the outer layer, the material can directly enter the next laminating process without dyeing. That is to say, the processed material or cut piece to be laminated is evenly spread on a cutting table, and glue is evenly applied thereon, and then the 100% spandex strap is firmly bonded between the upper and lower layers of other materials at a high temperature and under a high pressure. 
     
     
         5 . The strap having a memory function of  claim 1 , characterized in that said woven band is woven band or knitting band. 
     
     
         6 . The strap having a memory function of  claim 5 , characterized in that various strap can be woven into different structure with warp yarn and weft yarn made of 100% elastic spandex. 
     
     
         7 . The strap having a memory function of  claim 6 , characterized in that said strap is regular or irregular. 
     
     
         8 . The strap having a memory function of  claim 7 , characterized in that said strap is plane or patterned. 
     
     
         9 . The strap having a memory function of  claim 1 , characterized in that said strap can be made by spandex yarn of all specifications. 
     
     
         10 . The strap having a memory of function of  claim 1 , characterized in that said strap is applicable in the garment, such as underwear, briefs, swimwear, etc. 
     
     
       What is claimed is: 
     
     
         1 . A new laminated elastic fabric, characterized in that the fabric comprises 100% spandex laminated elastic woven band and elastic shell fabric. 
     
     
         2 . The new laminated fabric according to  claim 1 , wherein the laminated elastic woven band is woven using 100% spandex containing no other fibers. 
     
     
         3 . The new laminated fabric according to  claim 1 , wherein warp threads and weft threads used to weave the laminated elastic woven band both adopt 100% spandex yarns. 
     
     
         4 . The new laminated fabric according to  claim 1 , wherein the laminated elastic woven band may adopt spandex yarns of any specification. 
     
     
         5 . The new laminated fabric according to  claim 1 , wherein the greige band produced to make the laminated elastic woven band must be preset at a high temperature, the purpose of which is to stabilize the specification of the fabric and avoid deformation and curling of the fabric; meanwhile, since there is a large amount of silicone oil on the surface of the spandex, the oil on the fabric surface can vaporize through presetting at a high temperature; the presetting temperature must be above 130 degrees Celsius; and the optimal setting effect can be achieved by adjusting parameters such as temperature and speed according to the thickness; Said woven band must go through fumigation and phenolic yellowing processing so as to prevent unfavorable effect due to yellowing in later storage or use. 
     
     
         6 . The new laminated fabric according to  claim 1 , wherein since the laminated elastic woven band is laminated to the inner layer of the shell fabric and is invisible from the outer layer, it can directly enter the next laminating process without dyeing; the processing is that the processed shell fabric or cut piece to be laminated is evenly spread on a cutting table, and glue is evenly applied thereon, and then the 100% spandex woven band is firmly bonded between the upper and lower layers of shell fabric at a high temperature and under a high pressure. 
     
     
         7 . The new laminated fabric according to  claim 6 , wherein the laminated elastic woven band is formed by interweaving 100% spandex warp threads and weft threads according to different structures. 
     
     
         8 . The new laminated fabric according to  claim 8 , wherein at least one face of the laminated elastic woven band is planar. 
     
     
         9 . The new laminated fabric according to  claim 1 , wherein the shell fabric may be elastic or non-elastic. 
     
     
         10 . The new laminated fabric according to  claim 1 , wherein the shell fabric may be patterned or plain. 
     
     
         11 . The new laminated fabric according to  claim 1 , characterized in that the fabric is used after high-temperature lamination for ready-to-wear clothes, including underwear, briefs, swimsuit, etc.