Filter for articles of the tobacco-processing industry

Abstract

Filter, method of forming filter, and filter cigarette. The filter includes at least a first filter component composed of polyethylene fibers and a second filter component composed of a granulate. The instant abstract is neither intended to define the invention disclosed in this specification nor intended to limit the scope of the invention in any way.

1 . A filter comprising: 
 at least a first filter component composed of polyethylene fibers and a second filter component composed of a granulate.    
   
   
       2 . The filter in accordance with  claim 1 , wherein the filter is structured and arranged for articles of the tobacco-processing industry.  
   
   
       3 . The filter in accordance with  claim 1 , wherein the filter is structured and arranged for a cigarette.  
   
   
       4 . The filter in accordance with  claim 1 , wherein the granulate comprises at least one of powder and beads.  
   
   
       5 . The filter in accordance with  claim 4 , wherein constituents of the beads have a diameter of 0.3 mm to 0.8 mm.  
   
   
       6 . The filter in accordance with  claim 1 , wherein the granulate comprises activated charcoal, ion-exchange resin and/or aluminum oxide.  
   
   
       7 . The filter in accordance with  claim 1 , wherein constituents of the granulate have a diameter of 0.3 mm to 0.8 mm.  
   
   
       8 . The filter in accordance with  claim 1 , wherein the filter has a length, and a length of the polyethylene fibers is shorter than the length of the filter.  
   
   
       9 . The filter in accordance with  claim 8 , wherein the length of the polyethylene fibers is between 0.5 mm and 30 mm.  
   
   
       10 . The filter in accordance with  claim 9 , wherein the length of the polyethylene fibers is between 2 mm and 8 mm.  
   
   
       11 . The filter in accordance with  claim 10 , wherein the length of the polyethylene fibers is between 3 mm and 6 mm.  
   
   
       12 . The filter in accordance with  claim 1 , wherein the polyethylene fibers have high-density polyethylene in an interior region of the fibers and low-density polyethylene in an outer region of the fibers.  
   
   
       13 . The filter in accordance with  claim 1 , wherein the polyethylene fibers are fibres of one sort of polyethylene.  
   
   
       14 . The filter in accordance with  claim 1 , further comprising a third filter component.  
   
   
       15 . The filter in accordance with  claim 14 , wherein the third filter component is composed of web-forming fibers.  
   
   
       16 . The filter in accordance with  claim 1 , wherein a content of the granulate in the filter is between 35% by weight to 95% by weight.  
   
   
       17 . The filter in accordance with  claim 16 , wherein the content of granulate in the filter is between 70% by weight to 90% by weight.  
   
   
       18 . The filter in accordance with  claim 1 , wherein the polyethylene fibers are binding fibers structured and arranged to bind at least one of to one another and to the granulate.  
   
   
       19 . The filter in accordance with  claim 1 , wherein the polyethylene fibers are solidified fibers after having been melted, whereby the fibers bind the granulate to one another.  
   
   
       20 . A method for producing a filter in accordance with  claim 1 , the method comprising: 
 mixing the first filter component with the second filter component;    forming a filter rod out of the mixed first and second filter components;    heating the filter rod to at least approximately a melting temperature of the first filter component;    cooling the filter rod; and    cutting the filter rod into filter lengths.    
   
   
       21 . The method in accordance with  claim 20 , wherein the mixing occurs at least one of before and during the forming of the filter rod.  
   
   
       22 . A filter cigarette having a filter in accordance with  claim 1.