Methods for Fabricating Fibrous Structures Containing Shaped Particles

Abstract

A process for mechanically anchoring a shaped particle on a fibrous substrate, the process comprising steps of: providing a fibrous substrate comprising at least one fibrous layer; depositing the particle onto the surface of at least 1 fibrous layer of the substrate; and vibrating the substrate.

What is claimed is: 
     
         1 . A process for mechanically anchoring a shaped particle on a fibrous substrate, the process comprising steps of:
 i. providing a fibrous substrate comprising at least one fibrous layer;   ii. depositing the particle onto the surface of at least 1 fibrous layer of the substrate; and   iii. vibrating the substrate.   
     
     
         2 . The process according to  claim 1  wherein the step of vibrating the substrate comprises vibrating the substrate at a frequency between about 20 and about 20,000 hz. 
     
     
         3 . A process for mechanically anchoring a shaped particle on a fibrous substrate directly during the formation of the fibrous substrate, the process comprising steps of:
 i. mixing fibers and the shaped particles; and   ii. vibrating the substrate during the formation of the fibrous substrate.   
     
     
         4 . The process according to  claim 2  wherein the step of vibrating the substrate comprises vibrating the substrate at a frequency between about 20 and about 20,000 hz. 
     
     
         5 . The process according to  claim 1 , wherein said abrasive particles comprise elements having a longitudinal length (L) and a predetermined complex cross-sectional shape extending on a plane perpendicular to said longitudinal length (L), wherein the cross-sectional shape has at least one vertex, wherein an edge extends along the length L from the vertex, wherein the particles further comprise an anchoring element disposed away from the edge, and the ratio of said length (L) to a perimeter-equivalent diameter of said predetermined cross-sectional shape: “ECD P Hull ” is between about 0.5 and about 5.