Fiber Material Having a Manganese Oxide Coating

Abstract

Various embodiments of the teachings herein include methods for coating a fiber material with manganese oxide. For example, a method may include: applying a manganese oxide precipitate to the fiber material; drying the manganese oxide precipitate; and oxidizing the manganese oxide precipitate using an oxygen plasma at a temperature below 200° C. forming a manganese(IV) oxide layer having at least 70% by weight with respect to the manganese oxide precipitate.

What is claimed is: 
     
         1 . A method for coating a fiber material with manganese oxide, the method comprising:
 applying a manganese oxide precipitate to the fiber material;   drying the manganese oxide precipitate; and   oxidizing the manganese oxide precipitate using an oxygen plasma at a temperature below 200° C. forming a manganese (IV) oxide layer having at least 70% by weight with respect to the manganese oxide precipitate.   
     
     
         2 . The method as claimed in  claim 1 , further comprising applying the manganese oxide precipitate wet-chemically from potassium permanganate and manganese(II) salts. 
     
     
         3 . The method as claimed in  claim 1 , further comprising removing hydroxyl groups from the manganese(IV) oxide layer. 
     
     
         4 . A method for producing an antiviral and/or antibacterial fiber material, the method comprising:
 applying a menganese ozide precipitate to the fiber material;   drying the manganese oxide precipitate;   oxidizing the manganese oxide precipitate using an oxygen plasma at a temperature below 200° C. forming a manganese(IV) oxide layer having at least 70% by weight with respect to the manganese oxide precipitate;   and applying silver to the fiber material.   
     
     
         5 . The method as claimed in  claim 4 , wherein applying silver comprises:
 applying a silver nitrate solution; and   reducing the silver nitrate solution to form silver using a reducing agent.   
     
     
         6 . The method as claimed in  claim 4 , further comprising drying the fiber material under a protective gas atmosphere. 
     
     
         7 . A fiber material having a melting temperature and/or a decomposition temperature below 200° C., also having a manganese oxide coating that has at least 70% by weight, in particular at least 75% by weight, of manganese(IV) oxide, with respect to the manganese oxide coating. 
     
     
         8 . The fiber material as claimed in  claim 7 , wherein the manganese oxide coating has less than 5% by weight of manganese(II) oxide with respect to the manganese oxide coating. 
     
     
         9 . The fiber material as claimed in  claim 7 , further comprising silver. 
     
     
         10 . The fiber material as claimed in  claim 7 , further comprising polymer fibers. 
     
     
         11 - 12 . (canceled)