Fluorescent elastic yarn and method for producing the same

Abstract

Disclosed is a fluorescent elastic yarn and method for producing the same. The fluorescent elastic yarn which is finished with the spinfinish oil containing the fluorescent agent can fluoresce sufficiently to allow a fine elastic yarn to be seen by the naked eye when ultraviolet light is irradiated to the fluorescent elastic yarn. Therefore, the fluorescent elastic yarn of the present invention is advantageous in that CSY (Core spun yarn) producers are able to identify its presence inside of the hard fiber covering it more easily and timely and thus minimize the numbers of inferior CSY products which are not spun with elastic yarn strands. In addition to this merit, the fluorescent elastic yarn of the present invention gives CSY producers the other advantage that the fluorescent agent can be easily removed from the elastic yarn during the general scouring process posterior to the CSY production process, and therefore there is no possibility that the fluorescent agent is still remain on the fabric made with the CSY.

1 . A fluorescent elastic yarn finished with fluorescent agent dissolved or dispersed in spinfinish oils and effectively removed during a scouring process.  
   
   
       2 . A method for producing a fluorescent elastic yarn comprising the step of finishing the fluorescent elastic yarn with spinfinish oils whose main components are a silicone oil, a hydrocarbon oil and a fluorescent agent capable of being soluble or dispersed effectively in the hydrocarbon oil, wherein the content of fluorescent agent ranges from 0.001 to 1 wt % of a resulting elastic yarn weight.  
   
   
       3 . The method according to  claim 2 , wherein the fluorescent agent is selected from the group consisting of a stilbene-based fluorescent agent, a pyrazolone-based fluorescent agent, an imidazole-based fluorescent agent, an oxazole-based fluorescent agent, a coumarin-based fluorescent agent, a rhodamine-based fluorescent agent and a fluorescein-based fluorescent agent.  
   
   
       4 . A method for producing a covered fluorescent elastic yarn, comprising the step of covering a core yarn, 
 wherein the core yarn is the fluorescent elastic yarn according to  claim 1 .    
   
   
       5 . The method according to  claim 4 , wherein the fluorescent elastic yarn is covered with at least one selected from the group consisting of cotton, rayon, nylon, polyester and cellulose.  
   
   
       6 . A covered fluorescent elastic yarn produced through the method according to claims  4  or  5 .