Root-proof water-supply string and method for manufacturing root-proof water-supply string

Abstract

A root-proof water-supply string being a flexible string composed of a capillary material having a capillary function and a root-proof and water-permeable material which has a water-permeability and a root-proof function and covers the entire outer periphery of the capillary material. A method of manufacturing a root-proof water-supply string including the steps of winding a root-proof and water-permeable material around a capillary material, overlapping the end parts one on the other and then fixing the end parts together.

1 . A root-proof water-supply string characterized in that a capillary material having a capillary function is wrapped, on an outer periphery thereof and for an entire length thereof, by a root-proof water-permeable material having water permeability and a root-proof function so as to form a flexible string-shaped body. 
   
   
       2 . The root-proof water-supply string according to  claim 1 , wherein the capillary material at end surfaces of the string-shaped body is covered by the root-proof water-permeable material. 
   
   
       3 . The root-proof water-supply string according to  claim 1 , wherein a cross sectional shape of the string-shaped body is one selected from square, round, oval, or polygonal. 
   
   
       4 . The root-proof water-supply string according to  claim 1 , wherein the string-shaped body is a flat band shape of 20 to 50 mm in width and 2 to 6 mm in thickness. 
   
   
       5 . A method for manufacturing the root-proof water-supply string according to  claim 1 , comprising the steps of: wrapping a capillary material by a root-proof water-permeable material, overlapping end parts of the root-proof water-permeable material together, and fixing the overlapped parts together. 
   
   
       6 . The method for manufacturing the root-proof water-supply string according to  claim 5 , wherein the fixing of the overlapped part is performed by one selected from adhesion, welding and attachment by sewing. 
   
   
       7 . A method for manufacturing the root-proof water-supply string according to  claim 1 , comprising the steps of: winding a root-proof water-permeable material in advance into a cylindrical shape, and pulling a capillary material into an inside of the cylindrical root-proof water-permeable material. 
   
   
       8 . A method for manufacturing the root-proof water-supply string according to  claim 1 , comprising the steps of: providing a weaving machine or a knitting machine that can form woven cloth or knitted cloth in a round cylindrical shape around an outer periphery of a capillary material, feeding the capillary material thereto, and weaving or knitting of the root-proof water-permeable material around a circumference of the capillary material. 
   
   
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