Method for manufacturing composite fiber of hemp

Abstract

A method for manufacturing composite fiber of hemp includes steps of: preparing hemp material: cutting stem of hemp into pieces, drying and charring the pieces of hemp at 800 to 1200 degrees Celsius and grinding the pieces of hemp into powder to form a hemp material; preparing primary granule: mixing the hemp material and nylon granules in a weight ratio of 5-20:95-80, melting and granulating the hemp material and nylon granules to form primary granules; preparing mixed granules: mixing and melting the primary granules and nylon granules in a weight ratio of 5-20:95-80 and granulating to form mixed granules; spinning: melting the mixed granules to spin into a composite fiber.

What is claimed is: 
     
         1 . A method for manufacturing composite fiber of hemp, including steps of:
 preparing hemp material: cutting stem of hemp into pieces, drying and charring the pieces of hemp at 800 to 1200 degrees Celsius and grinding the pieces of hemp into powder to form a hemp material;   preparing primary granule: mixing the hemp material and main granules in a weight ratio of 5-20:95-80 wherein the main granules are selected from a group composed of nylon granules or polyester granules, melting and granulating the hemp material and main granules to form primary granules;   preparing mixed granules: mixing and melting the primary granules and main granules in a weight ratio of 5-20:95-80 and granulating to form mixed granules;   spinning: melting the mixed granules to spin into a composite fiber.   
     
     
         2 . The method for manufacturing composite fiber of hemp of  claim 1 , wherein the hemp material and main granules are mixed in a weight ratio of 15:85, the primary granules and main granules are mixed in a weight ratio of 15:85. 
     
     
         3 . The method for manufacturing composite fiber of hemp of  claim 1 , wherein the hemp material is powder composed of nanoparticles. 
     
     
         4 . The method for manufacturing composite fiber of hemp of  claim 1 , wherein the mix granules includes 0.2-2 wt % of the hemp material. 
     
     
         5 . A method for manufacturing composite fiber of hemp, including steps of:
 preparing hemp material: cutting stem of hemp into pieces, drying and charring the pieces of hemp at 800 to 1200 degrees Celsius and grinding the pieces of hemp into powder to form a hemp material;   preparing primary granule: mixing the hemp material and main granules in a weight ratio of 5-20:95-80 wherein the main granules are selected from a group composed of nylon granules or polyester granules, melting and granulating the hemp material and main granules to form primary granules;   mixing, melting, and spinning: mixing and melting the primary granules and main granules in a weight ratio of 5-20:95-80 followed by spinning into a composite fiber.   
     
     
         6 . The method for manufacturing composite fiber of hemp of  claim 5 , wherein the hemp material and main granules are mixed in a weight ratio of 15:85, the primary granules and main granules are mixed in a weight ratio of 15:85. 
     
     
         7 . The method for manufacturing composite fiber of hemp of  claim 5 , wherein the hemp material is powder composed of nanoparticles. 
     
     
         8 . The method for manufacturing composite fiber of hemp of  claim 5 , wherein the mixture of the primary granules and main granules includes 0.2-2 wt % of the hemp material.