Permeable ABC protective clothing material, the use thereof, and ABC protective suit composed thereof

Abstract

A conventional permeable ABC protective clothing material comprises an internal laminate ( 30 ) comprising individual permeable layers together with an adsorptive layer ( 33, 33 ′) containing activated carbon, and a tear-resistant, hydrophobic and oleophobic covering material ( 10 ). The permeable ABC protective clothing material is to be developed such that the protective effect is raised without appreciable deztriment to the wearing comfort of permeable clothing and thus to the efficiency of the wearer of the suit. To this end, between the internal laminate ( 30 ) and the covering material ( 10 ) there is disposed a layer of filtering material and the layer of filtering material is a fine-pored nonwoven filter fabric ( 20 ).

1 . A permeable ABC protective clothing material with the following features:
 the ABC protective clothing material comprises
 an internal laminate ( 30 ) comprising individual permeable layers together with an adsorptive layer ( 33 ,  33 ′) containing activated carbon, and 
 a tear-resistant, hydrophobic and oleophobic covering material ( 10 ), 
   characterized in that
 that between the internal laminate ( 30 ) and the covering material ( 10 ) there is disposed a layer of filtering material, and 
 that the layer of filtering material is a fine-pored nonwoven filter fabric ( 20 ). 
   
   
   
       2 . An ABC protective clothing material as defined in  claim 1 , wherein said nonwoven filter fabric ( 20 ) consists predominantly of microfibers having a diameter of from 0.1 to 10 of μm. 
   
   
       3 . An ABC protective clothing material as defined in  claim 1 , wherein said nonwoven filter fabric ( 20 ) consists of at least two individual layers of nonwoven filter fabric, which are interconnected in a dot-matrix-like manner. 
   
   
       4 . An ABC protective clothing material as defined in  claim 1 , wherein said nonwoven filter fabric has a pore size of less than 1 μm. 
   
   
       5 . An ABC protective clothing material as defined in  claim 1 , wherein said nonwoven filter fabric ( 20 ) is designed in such a manner that super-fine dusts and aerosols having a a size of 1 μm are retained to an extent of more than 99%. 
   
   
       6 . An ABC protective clothing material as defined in  claim 1 , wherein said nonwoven filter fabric ( 20 ) has an air permeability of from 50 to 2500 mm/s. 
   
   
       7 . An ABC protective clothing material as defined in  claim 1 , wherein said nonwoven filter fabric ( 20 ) has an air permeability of from 250 to 1100 mm/s. 
   
   
       8 . An ABC protective clothing material as defined in of  claim 1 , wherein said nonwoven filter fabric ( 20 ) reduces the air permeability by not more than 70% compared with an ABC protective clothing material not containing nonwoven filter fabric ( 20 ). 
   
   
       9 . An ABC protective clothing material as defined in  claim 1 , wherein the attachment of said nonwoven filter fabric ( 20 ) to said covering material ( 10 ) and said internal laminate ( 30 ) is effected by means of seams ( 90 ). 
   
   
       10 . An ABC protective clothing material as defined in  claim 1 , wherein said nonwoven filter fabric ( 20 ) is laminated to said covering material ( 10 ) by means of adhesive dots ( 11 ) to form an outer laminate ( 5 ). 
   
   
       11 . The use of a layer of filtering material in the form of a fine-pored nonwoven filter fabric ( 20 ) for the production of a permeable ABC protective clothing material that has
 an internal laminate ( 30 ) comprising individual permeable layers with an adsorptive layer ( 33 ) containing activated carbon, and   a tear-resistant, hydrophobic and oleophobic covering material ( 10 ),   
     such that said nonwoven filter fabric ( 20 ) is disposed between the internal laminate ( 30 ) and the covering material ( 10 ). 
   
   
       12 . The use as defined in  claim 11 , such that the nonwoven filter fabric ( 20 ) consists predominantly of microfibers having a diameter of from 0.1 to 10 of μm. 
   
   
       13 . The use as defined in  claim 11 , such that the nonwoven filter fabric ( 20 ) consists of at least two individual layers of nonwoven filter fabric which are interconnected in dot-matrix-like manner. 
   
   
       14 . The use as defined in  claim 11 , such that the nonwoven filter fabric has a pore size of less than 1 μm. 
   
   
       15 . The use as defined in  claim 11 , wherein the nonwoven filter fabric ( 20 ) is designed in such a manner that super-fine dusts and aerosols having a size of 1 μm to an extent of more than 99% are retained. 
   
   
       16 . The use as defined in  claim 11 , such that the nonwoven filter fabric ( 20 ) has an air permeability of from 50 to 2500 mm/s. 
   
   
       17 . The use as defined in  claim 11 , such that the nonwoven filter fabric ( 20 ) has an air permeability of from 250 to 1100 mm/s. 
   
   
       18 . The use as defined in  claim 11 , such that the nonwoven filter fabric ( 20 ) reduces the air permeability by not more than 70%, based on an ABC protective clothing material not containing nonwoven filter fabric ( 20 ). 
   
   
       19 . The use as defined in  claims 11 , such that attachment of the nonwoven filter fabric ( 20 ) to the covering material ( 10 ) and the internal laminate ( 30 ) is effected using seams ( 90 ). 
   
   
       20 . The use as defined in  claim 11 , such that the nonwoven filter fabric ( 20 ) is laminated to the covering material ( 10 ) by means of adhesive dots ( 11 ) to form an outer laminate ( 5 ). 
   
   
       21 . An ABC protective suit, produced using the permeable ABC protective clothing material as defined in  claim 11 .