Method for preparing spun leather yarn using leather fiber, and spun leather yarn prepared according to preparation method

Abstract

Disclosed are a method for preparing spun leather yarn using leather fiber, and spun leather yarn prepared according to the preparation method. The spun leather yarn prepared according to the preparation method enables the manufacture of fabrics, knitted goods, and lace goods, which have the character of leather, and thus can be effectively used for various fashion applications. In addition, the spun leather yarn can replace existing leather materials, which have been used in bags, athletic shoes, and the like, and thus is not affected by material supply in accordance with seasonal changes, and accordingly, the economic effect thereof is excellent. Moreover, the spun leather yarn has warmth retention and general flame retardancy, which are the properties of natural leather, and thus is of very high quality.

1 . A method for preparing spun leather yarn using leather fiber comprising the steps of:
 mixing leather fiber, common fiber, and polymer fiber to prepare mixed fiber;   putting water and woolen oil into the mixed fiber, and mixing them;   putting an anti-static agent into the mixed fiber into which water and woolen oil have been put, and mixing them; and   spinning the mixed fiber into which the anti-static agent is put to prepare spun leather yarn.   
     
     
         2 . The method according to  claim 1 , wherein the leather fiber is obtained from leather waste, and the leather waste may be flaky scraps. 
     
     
         3 . The method according to  claim 1 , wherein the common fiber is one selected from groups of cellulose-based natural fiber, protein-based natural fiber, mineral-based fiber, cellulose-based artificial fiber, protein-based artificial fiber, rubber-based fiber, inorganic fiber, and acetate-based fiber. 
     
     
         4 . The method according to  claim 1 , wherein the polymer fiber is one selected from groups of polyamide-based fiber, polyester-based fiber, polyurethane-based fiber, polyurea-based fiber, polyacryl-based fiber, polyvinyl alcohol-based fiber, polyvinyl chloride-based fiber, polyvinylidene chloride-based fiber, polypropylene-based fiber, polyethylene-based fiber, polystyrene-based fiber, and polyfluoroethylene-based fiber. 
     
     
         5 . The method according to  claim 1 , wherein the leather fiber, the common fiber, and the polymer fiber are mixed at the rate of 40 parts by weight to 80 parts by weight of common fiber, and 20 parts by weight to 60 parts by weight of polymer fiber on the basis of 100 parts by weight of leather fiber. 
     
     
         6 . The method according to  claim 1 , wherein the water and the woolen oil are mixed at the rate of 5 parts by weight to 10 parts by weight of water and 2 parts by weight to 10 parts by weight of woolen oil on the basis of 100 parts by weight of the mixed fiber. 
     
     
         7 . The method according to  claim 1 , wherein 1 part by weight to 5 parts by weight of the anti-static agent is put on the basis of 100 parts by weight of the mixed fiber. 
     
     
         8 . The method according to  claim 1 , wherein each of the step of putting water and woolen oil into the mixed fiber and mixing them, and the step of putting an anti-static agent into the mixed fiber into which water and woolen oil have been put and mixing them further includes a step of aging the mixed fiber for 8 hours to 15 hours after mixing. 
     
     
         9 . The method according to  claim 1 , wherein the step of preparing spun leather yarn includes steps of:
 carding the mixed fiber, into which the anti-static agent is put, using a carding machine to prepare sliver; and   applying twist and draft to the sliver to prepare spun leather yarn.   
     
     
         10 . The method according to  claim 9 , wherein the carding machine includes a worker speed controller to control the speed of the worker. 
     
     
         11 . The method according to  claim 9 , wherein the sliver manufactured by the carding machine is 15 mm or more in length. 
     
     
         12 . The method according to  claim 9 , wherein after the step of manufacturing the sliver, the step of manufacturing the spun leather yarn further includes:
 a combing step of removing foreign matters from the sliver;   a drawing step of producing a single strand of the sliver after the combing step; and   drawing the sliver again after the drawing step and roving the sliver.   
     
     
         13 . The method according to  claim 12 , wherein the drawing step is carried out using a roller having a plurality of wire fillets, and
 wherein an interval between the plurality of wire fillets is 0.01 mm to 1 mm.   
     
     
         14 . The method according to  claim 12 , wherein the drawing step is carried out by spraying water in order to prevent static electricity. 
     
     
         15 . The method according to  claim 1 , further including:
 a covering step after the step of manufacturing spun leather yarn.