DNA counterfeit-proof fiber together with spinning nozzle and method used to produced thereof

Abstract

A spinning nozzle for producing the synthetic fibers and a method for producing a DNA counterfeit-proof fiber by the spinning nozzle are provided. The spinning nozzle includes a polymer solution inflow passage and a pair of water inflow passages located at the both sides of the polymer solution inflow passage, wherein the polymer solution inflow passage and the water inflow passages are converged into a mixing outflow passage and a synthetic fibers are produced at the outlet of the mixing outflow passage. A method for producing a DNA counterfeit-proof fiber by the spinning nozzle includes the steps as follows. First, mixing a plurality of the DNA microcapsules with a material solution to produce a polymer solution. Then, to form a converging interface between the polymer solution and the two streams of acid-hydrolysis waters. Afterwards, causing the flowing polymer solution to converge with the two streams of acid-hydrolysis waters for producing the DNA counterfeit-proof fiber.

1 . A spinning nozzle producing a synthetic fiber, comprising:
 a polymer solution inflow passage providing a polymer solution for producing the synthetic fiber; and   a pair of water inflow passages located at both sides of the polymer solution inflow passage and supplying two streams of acid-hydrolysis waters, wherein   the polymer solution inflow passage and the water inflow passages are merged into a mixing outflow passage and the synthetic fiber are produced at an outlet of the mixing outflow passage.   
   
   
       2 . A spinning nozzle according to  claim 1 , wherein the polymer solution includes a plurality of DNA microcapsules and the synthetic fiber is a DNA counterfeit-proof fiber. 
   
   
       3 . A spinning nozzle according to  claim 2 , wherein the polymer solution is formed by solving Nylon 6 in a formic acid first and then mixing therewith the plurality of DNA microcapsules. 
   
   
       4 . A spinning nozzle according to  claim 1 , wherein the two streams of acid-hydrolysis waters are deionized waters. 
   
   
       5 . A spinning nozzle according to  claim 1 , wherein the two streams of acid-hydrolysis waters have a temperature of 60° C. 
   
   
       6 . A spinning nozzle according to  claim 1 , wherein the pair of water inflow passages have respective central lines symmetrical to what the polymer solution inflow passage has, and the central lines of the pair of water inflow passages form an included angle of 90°. 
   
   
       7 . A spinning nozzle according to  claim 1 , wherein the polymer solution is encountered in flanks by the two streams of acid-hydrolysis waters for processing an acid hydrolysis reaction. 
   
   
       8 . A spinning nozzle according to  claim 7 , wherein the polymer solution is convergently attacked by the two streams of acid-hydrolysis waters. 
   
   
       9 . A method for producing a DNA counterfeit-proof fiber, comprising steps of:
 (a) preparing a polymer solution having a plurality of the DNA microcapsules;   (b) driving the polymer solution and driving two streams of acid-hydrolysis waters approaching to the both sides of the polymer solution; and   (c) causing the flowing polymer solution to encounter with the two streams of acid-hydrolysis waters for producing the DNA counterfeit-proof fiber.   
   
   
       10 . A method according to  claim 9 , comprising before Step (a) a step of:
 (p) pre-purifying the two streams of the acid-hydrolysis waters to be deionized waters.   
   
   
       11 . A method according to  claim 9 , comprising before Step (a) a step of:
 (q) preheating the two streams of the acid-hydrolysis waters to have a temperature of 60° C.   
   
   
       12 . A method according to  claim 9 , wherein Step (a) further comprises steps of:
 (a1) solving Nylon 6 with a formic acid to generate a Nylon 6 formic acid solution; and   (a2) mixing the plurality of the DNA microcapsules with the Nylon 6 formic acid solution to generate the polymer solution.   
   
   
       13 . A method according to  claim 9 , wherein Step (c) further comprises a step of:
 (c2) adjusting flowing speeds of the two streams of acid-hydrolysis waters to control a diameter and a quality of the DNA counterfeit-proof fibers.   
   
   
       14 . A method according to  claim 9 , wherein the flowing polymer solution encountering with the two streams of acid-hydrolysis waters is caused by a converging attack of the two streams of acid-hydrolysis waters. 
   
   
       15 . A method for producing a DNA counterfeit-proof fibers, comprising steps of:
 (a) preparing a polymer solution having a plurality of the DNA microcapsules; and   (b) encountering the polymer solution with the two streams of acid-hydrolysis waters for processing an acid hydrolysis reaction and producing a DNA counterfeit-proof fiber.