Abstract:
A skin weft with artificial hair attached thereto to provide various styling options or ample volumetric feeling. The skin weft comprises a stitched portion formed by stitching on a side edge of artificial hair composed of human hair or resin hair, a resin tape welded to a surface of the stitched portion, and a bonding component attached to a surface of the resin tape. The method for manufacturing the skin weft comprises the steps of forming a stitched portion by stitching one side edge of human hair or resin hair arranged and conveyed in the form of a sheet, and supplying a resin tape onto a surface of the stitched portion to form a bonding portion. Automatic mass production is achieved, thereby improving productivity and significantly reducing manufacturing costs. Additional means are unnecessary in the manufacturing process, thereby enabling an unskilled person to perform the task.

Description:
RELATED APPLICATIONS 
     This application is a §371 application from PCT/KR2012/010344 filed Nov. 30, 2012, which claims priority from Korean Patent Application No. 10-2012-0127605 filed Nov. 12, 2012, each of which is herein incorporated by reference in its entirety. 
     BACKGROUND OF THE INVENTION 
     Field of the Invention 
     The present invention relates to a skin weft and a method for manufacturing the same, and more particularly, to a skin weft and a method for manufacturing the same that is capable of applying a human or artificial hair extension to a user&#39;s hair, thus making it easy to style his or her hair. 
     Background of the Related Art 
     If a portion of hair falls out due to hair loss or a quantity of hair is totally small, generally, an artificial or human hair extension is applied to the hair. At this time, if the hair extension made in the form of a small bundle is applied to a user&#39;s hair, it is knotted to the user&#39;s hair or fixed thereto by means of a separate ring. 
     However, such knotting needs an operator&#39;s skill and long time for the application of the hair extension, and further, if the hair extension is separated from the hair, the hair may be deformed. On the other hand, if the hair extension is fixed to the hair by means of the separate fixing ring, it may be easily separated therefrom due to unstable fixation, or it becomes in an unnatural fixed state. 
     So as to remove the above-mentioned problems, there has been proposed a skin weft made by attaching artificial hair to a band type bonding portion made of fiber materials having given width and length and applying a loop or adhesive to the bonding portion so as to attach the bonding portion to a user&#39; hair. In case of the conventional skin weft, however, the artificial hair is attached to the bonding portion by means of an adhesive, which is manually manufactured, thus making it hard to achieve mass production. Furthermore, the adhesive should be applied even when the skin weft is applied to a user&#39;s hair, thus making it inconvenient to perform the application of the skin weft to the user&#39;s hair. 
     SUMMARY OF THE INVENTION 
     Accordingly, the present invention has been made in view of the above-mentioned problems occurring in the prior art, and it is an object of the present invention to provide a skin weft and a method for manufacturing the same wherein automatic mass production can be achieved so as to improve productivity and thus significantly reduce manufacturing costs, and it is very convenient to be applied to hair. 
     To accomplish the above-mentioned object, according to a first aspect of the present invention, there is provided a skin weft including: a stitched portion formed by stitching one side edge of artificial hair made of human hair or resin hair; a resin tape welded to the surface of the stitched portion; and fixing means attached to the surface of the resin tape. 
     To accomplish the above-mentioned object, according to a second aspect of the present invention, there is provided a method for manufacturing a skin weft including the steps of: forming a stitched portion by stitching one side edge of human hair or resin hair arranged and conveyed in the form of a sheet; and supplying a resin tape onto the surface of the stitched portion and welding the resin tape by heat so as to form a bonding portion. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       The above and other objects, features and advantages of the present invention will be apparent from the following detailed description of the preferred embodiments of the invention in conjunction with the accompanying drawings, in which: 
         FIG. 1  is a flow chart showing a method for manufacturing a skin weft according to the present invention; 
         FIG. 2  shows the step of stitching in the method for manufacturing a skin weft according to the present invention; 
         FIG. 3  shows one example of the step of welding a resin tape in the method for manufacturing a skin weft according to the present invention; 
         FIG. 4  shows another example of the step of welding a resin tape in the method for manufacturing a skin weft according to the present invention; 
         FIG. 5  shows yet another example of the step of welding a resin tape in the method for manufacturing a skin weft according to the present invention; 
         FIG. 6  shows the step of cutting in the method for manufacturing a skin weft according to the present invention; 
         FIG. 7  shows the step of attaching fixing means in the method for manufacturing a skin weft according to the present invention; 
         FIG. 8  shows the skin weft produced according to a first embodiment of the present invention; 
         FIG. 9  shows the skin weft produced according to a second embodiment of the present invention; 
         FIG. 10  shows a first application example of the skin weft according to the present invention; 
         FIG. 11  shows a second application example of the skin weft according to the present invention; and 
         FIGS. 12 and 13  show a third application example of the skin weft according to the present invention. 
     
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT 
     Hereinafter, an explanation on a skin weft and a method for manufacturing the same according to the present invention will be in detail given with reference to the attached drawing. 
       FIG. 1  is a flow chart showing a method for manufacturing a skin weft according to the present invention. First, a stitching process (step S 10 ) is conducted wherein after artificial hair  1  like human hair or resin hair made of synthetic resin is washed and dried, the artificial hair  1  is arranged and conveyed in the form of a sheet so as to form a stitched portion  11  thereon. 
     As shown in  FIG. 2 , the stitching process (step S 10 ) is conducted to form the stitched portion  11  along the front edge of one side of the artificial hair  1 , while the artificial hair  1  is being conveyed, thus making the skin weft  10 . 
     At this time, if the front end of the artificial hair  1 , that is, the stitched portion  11  in the stitching process (step S 10 ) is formed by folding the front end portion  1   a  of the artificial hair  1 , a thread is knotted to the front end portion  1   a  and fixed to a user&#39;s hair after the application of the skin weft  10  to the user&#39;s hair. 
     The stitched portion  11  is formed on one side front end edge of the artificial hair  1  by means of one or more stitched lines, and after that, a resin tape welding process (step S 20 ) is conducted wherein while the artificial hair  1  on which the stitched portion  11  is formed is being conveyed, resin tapes  12  and  13  are supplied and welded to both surfaces of the stitched portion  11 . 
     As shown in  FIG. 3 , the resin tape welding process (S 20 ) is conducted by supplying the resin tapes  12  and  13  to top and underside of the stitched portion  11  of the skin weft  10  being conveyed and applying heat to them by means of heating rollers  14  and  15 , thus allowing the resin tapes  12  and  13  to be compressed and welded to the top and underside of the stitched portion  11  of the skin weft  10 . 
     The heating rollers  14  and  15  are provided in the form of one set or two sets, and they have heat sensors  14   a  and  15   a  mounted at the inside thereof so as to maintain the temperatures of the heating rollers  14  and  15  within a given range. 
     At this time, the resin tapes  12  and  13  are desirably made of thermoplastic resin dissolved by heat, such as silicone resin, vinyl chloride resin, polyethylene resin, and the like. 
     When the resin tapes  12  and  13  are passed through the heating rollers  14  and  15 , they are heated and compressed at the same time, so that the welding materials produced therefrom are penetrated into the artificial hair  1  and attached thereto. 
     The resin tape welding process (step S 20 ) is not limited to the example as shown in  FIG. 3 , and can be conducted as shown in  FIG. 4  wherein while the resin tape  12  and a mesh cloth  40  are being supplied to the top of the stitched portion and the resin tape  13  to the underside thereof, they are first compressed by the heating rollers  14  and  15  and secondarily heated by means of welding means  41  and  42  disposed over and under the artificial hair  1 , thus allowing the resin tapes  12  and  13  to be welded to the top and underside of the stitched portion  11  of the skin weft  10 . 
     At this time, if the resin tapes  12  and  13  are dissolved by the welding means  41  and  42 , the welding materials produced therefrom are penetrated into the artificial hair  1  around the mesh cloth  40  and the stitched portion  11 , thus making the fixed state of the artificial hair  1  more rigid. 
     The welding means  41  and  42  include an electric heater or an ultrasonic welder. 
     If the welding for the resin tapes  12  and  13  is conducted by means of the welding means  41  and  42 , cooling around the stitched portion  11  is conducted by means of cooling means  43 , so that the welded portions of the resin tapes  12  and  13  become solidified and fixed. 
     A plurality of conveying rollers  44 ,  45  and  46  is disposed on both side front ends and center in the figure so as to convey and guide the skin weft  10 . 
     Further, the resin tape welding process (step S 20 ) can be conducted as shown in  FIG. 5  wherein while only the resin tape  12  is being supplied to the top of the stitched portion  11  of the artificial hair  1 , it is pre-heated by the heating rollers  14  and  15 , welded by means of welding means  41  and  42 , and cooled by means of the cooling means  43 . 
     Like this, if the resin tape  12  is welded to one side of the artificial hair  1 , the welded surface of the resin tape  12  faces the surface of the hair to which the skin weft  10  is applied, so that it is not seen to the outside, thus removing the lightening on the welded surface of the resin tape  12  formed by the heating roller  14 . 
     The skin weft  10  onto which the resin tapes  12  and  13  are welded through the resin tape welding process (step S 20 ) can be applied in practical use, and as shown in the enlarged portion of  FIG. 6 , a well-known fixing thread is knotted to the front end portion  1   a  formed along the front end of the skin weft  10  so as to apply the skin weft  10  to a user&#39;s hair. 
     Next, a cutting process (step S 30 ) is conducted wherein if bonding portions  16  are formed through the welding of the resin tapes  12  and  13  on top and underside of the stitched portion  11 , the front ends of the bonding portions  16  are cut constantly. 
     As shown in  FIG. 6 , the cutting process (S 30 ) is conducted by cutting the front ends of the bonding portions  16  of the skin weft  10  by a given width by means of a cutter  17 . 
     If the cutting process (S 30 ) is conducted, a fixing means attaching process (step S 40 ) is conducted to attaching fixing means for fixing the skin weft  10  to head or hair to the bonding portions  16  of the skin weft  10 . 
     In the fixing means attaching process (S 40 ), the fixing means for fixing the skin weft  10  to the head surface or hair is attached to one side surface of the bonding portion  16 . If the fixing means includes a double-sided tape  20 , as shown in  FIG. 7 , the double-sided tape  20  is attached to the top side of the skin weft  10  and passed between heating rollers  18  and  19  disposed on the top and underside of the skin weft  10 , so that the double-sided tape  20  is bonded to the bonding portion  16 , while being heated and compressed on the top of the bonding portion  16 , thus completing the manufacturing of the skin weft  10 . 
     At this time, the heating rollers  18  and  19  have heat sensors  18   a  and  19   a  mounted at the inside thereof so as to prevent them from being heated over a given temperature. 
     If the double-sided tape  20  as the fixing means is attached, a protection sheet  20   a  is separated from the double-sided tape  20 , and next, the bonding portion of the double-sided tape  20  is attached to a portion where the skin weft  10  is applied. For example, the attachment of the bonding portion of the double-sided tape  20  is conducted in the state where a user&#39;s hair behind his or her hair to which the skin weft  10  is applied is lifted up. 
     On the other hand, the fixing means is not limited to the double-sided tape  20 , and for example, as shown in  FIG. 9 , it may be a lace  21  attached to one side surface of the bonding portion  16  by means of sewing or an adhesive, the lace  21  having a plurality of loops  21   a  formed on the front end of the upper portion thereof. The user&#39;s hair is inserted into the loops  21   a  and fixedly knotted to them. Otherwise, the loops  21   a  and the user&#39;s hair are knotted to each other by means of a separate fixing thread, thus fixing the skin weft  10  to the user&#39;s hair. 
     In this case, the skin weft  10  becomes one piece or has a plurality of pieces connected to each other and is thus applied to the user&#39;s hair through the lace  21 . 
     On the other hand, as shown in  FIG. 10 , the fixing means includes fixing clips  22  coupled to the bonding portion  16 , thus applying the skin weft  10  to the user&#39;s hair, and in this case, a plurality of skin wefts  10  can be connected with each other by means of connection members  22   a  like tapes. 
     Further, as shown in  FIG. 11 , the fixing means includes a plurality of fixing strings  24  disposed traversely to each other in such a manner as to allow the skin weft  10  to surround the user&#39;s head, thus fixing the skin weft  10  to the user&#39;s head. 
     Furthermore, the skin weft  10  is not limited to the application in the spread state thereof, and as shown in  FIG. 12 , the bonding portion  16  of the skin weft  10  is rolled and fixed to the interior of a fixing ring  24  by means of an adhesive. Next, an application loop  24   a  is inserted into the fixing ring  24 , and as shown in  FIG. 13 , the user&#39;s hair H is inserted into the application loop  24   a  and pulled and induced to the interior of the fixing ring  24 . After that, the skin weft  10  is knotted to the user&#39;s hair H or fixed thereto by means of an adhesive. 
     As mentioned above, the skin weft and the method for manufacturing the same according to the present invention is provided wherein automatic mass production can be achieved so as to improve productivity and thus significantly reduce manufacturing costs, and it is unnecessary to use additional means such as an adhesive, so that the manufacturing process is conveniently and quickly performed, and even an unskilled person can be readily handle it. 
     While the present invention has been described with reference to the particular illustrative embodiments, it is not to be restricted by the embodiments but only by the appended claims. It is to be appreciated that those skilled in the art can change or modify the embodiments without departing from the scope and spirit of the present invention.