Patent Application
20130137326
1. Field of the Invention
The present invention relates to woven fabric and a method for manufacturing the same and more particularly to anti-interference hybrid fabric and a method for manufacturing the same.
2. Description of the Related Art
To pursue value-added features to have light weight, thin profile, high strength and the like, electronic products, such as mobile phones, employ compound material, such as carbon fiber, to build covers thereof, thereby reducing the weight and thickness of the mobile phones and raising the quality and value of the electronic products.
As carbon fiber is conductive, covers formed by carbon fiber fabric in a hardening process are also conductive. When electromagnetic signals of mobile phone pass through those conductive covers, the signals are blocked or interfered with. The received signals are weak and thus require higher signal strength to pass through the covers. Such covers certainly cause operational inconvenience to users of the mobile phones.
A first objective of the present invention is to provide anti-interference hybrid fabric having at least one unblocking area woven by non-conductive fiber and allowing electromagnetic signals to pass therethrough.
To achieve the foregoing objective, the anti-interference hybrid fabric has at least one unblocking area, multiple longitudinal strands of fiber and multiple transverse strands of fiber.
The at least one unblocking area is formed on the anti-interference hybrid fabric.
A part of the longitudinal strands of fiber are conductive and the rest of the longitudinal strands of fiber are non-conductive.
The transverse strands of fiber are interwoven with the longitudinal strands of fiber. A part of the transverse strands of fiber are conductive. The rest of the transverse strands of fiber are non-conductive. The part of the non-conductive longitudinal strands of fiber and the non-conductive transverse strands of fiber are woven to form the at least one unblocking area. The part of the conductive longitudinal strands of fiber and the conductive transverse strands of fiber are woven to form the rest of anti-interference hybrid fabric.
A second objective of the present invention is to provide a method for manufacturing anti-interference hybrid fabric having unblocking area woven by non-conductive fiber and allowing electromagnetic signals to pass therethrough.
To achieve the foregoing objective, the method for manufacturing anti-interference hybrid fabric has a filament yarn preparing step, a fabric weaving step and a finished product outputting step.
The filament yarn preparing step prepares multiple fiber strands made of a compound material. The fiber strands have multiple strands of conductive fiber and multiple strands of non-conductive fiber, and the strands of conductive fiber and the strands of non-conductive fiber serve as filament yarns for weaving the anti-interference hybrid fabric.
The fabric weaving step inputs the fiber strands serving respectively as warp yarns and filling yarns to a loom machine to weave a finished product of the anti-interference hybrid fabric after selecting at least one unblocking area on the finished product. The warp yarns passing through the at least one unblocking area correspond to a part of the strands of non-conductive fiber and the rest of warp yarns correspond to a part of the strands of conductive fiber. The filling yarns passing through the at least one non-blocking area correspond to the remaining strands of non-conductive fiber and the rest of filling yarns correspond to the remaining strands of conductive fiber.
The finished product outputting step continuously outputs the finished product of the anti-interference hybrid fabric. The finished product of the anti-interference hybrid fabric has the at least one unblocking area woven by the warp yarns and the filling yarns corresponding to the strands of non-conductive fiber and the remaining area woven by the warp yarns and the filling yarns corresponding to the strands of conductive fiber.
A finished product manufactured by the method of the present invention is cut to a suitable size and is pressed together with resin to form a cover of a mobile phone or a communication product.
The benefits of the anti-interference hybrid fabric and the method for manufacturing anti-interference hybrid fabric lies in that the finished product of the anti-interference hybrid fabric has at least one unblocking area. As the unblocking area has only strands of non-conductive fiber passing therethrough, the at least one unblocking area of the cover made by the finished product of the anti-interference hybrid fabric is non-conductive, thereby avoiding interfering with electromagnetic signals transmitted or received by the mobile phone or communication product. Accordingly, besides having high strength, tough wear-resistance and light weight, the cover made from the hybrid fabric and resin for a mobile phone or a communication product can also avoid communication interference to the mobile phone or the communication product.
Other objectives, advantages and novel features of the invention will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings.
With reference to
Filament Yarn Preparing Step:
Multiple fiber strands made of a compound material are prepared. The fiber strands have multiple strands of conductive fiber and multiple strands of non-conductive fiber. The strands of conductive fiber and the non-conductive fiber serve as the filament yarns for weaving fabric. The conductive fiber 11 may be carbon fiber or metal fiber. The non-conductive fiber 12 may be chemical fibers including organic fibers and inorganic fibers having high strength and high ductility, such as polyethylene terephthalate (PET) fibers, polyester (PE) fibers, polypropylene (PP) fibers, Kevlar fibers, aramid fibers, para aramid fibers, glass fibers and basalt fibers.
Fabric Weaving Step:
The fiber strands having multiple strands of conductive fiber and multiple strands of non-conductive fiber are used respectively as warp yarns and filling yarns for weaving fabric. Before the weaving starts, at least one unblocking area on the woven fabric outputted from a loom machine is selected to satisfy signal transceiving requirements of a communication product, such as a mobile phone on which the woven fabric is mounted. Each one of the at least one unblocking area is woven by multiple warp yarns and multiple filling yarns respectively having multiple strands of non-conductive fiber. Given the at least one unblocking area, after the finished product is outputted from a loom machine and is cut and, together with resin, is pressed to make a cover, the at least one unblocking area can be located on at least one corresponding location of a communication product through which the communication product transceives communication signals to prevent from blocking the communication signals.
The fabric weaving step starts after the at least one non-blocking area is selected. Upon weaving, the warp yarns passing through the at least one non-blocking area pertain to the fiber strands of non-conductive fiber while the rest of warp yarns pertain to the fiber strands of conductive fiber. Likewise, the filling yarns passing through the at least one non-blocking area pertain to the fiber strands of non-conductive fiber while the rest of filling yarns pertain to the fiber strands of conductive fiber.
Finished Product Outputting Step:
With reference to
With reference to
Even though numerous characteristics and advantages of the present invention have been set forth in the foregoing description, together with details of the structure and function of the invention, the disclosure is illustrative only. Changes may be made in detail, especially in matters of shape, size, and arrangement of parts within the principles of the invention to the full extent indicated by the broad general meaning of the terms in which the appended claims are expressed.
