Method of attaching a substantially uniform distribution of particulates to individual exposed surfaces of a substrate

A method of attaching a substantially uniform distribution of particulates to individual exposed surfaces of a matrix of fibrous material, the method comprising:

• electrostatically charging a matrix of dielectric fibrous material having individual exposed surfaces to create a substantially uniform distribution of charged sites at individual exposed surfaces;
• applying particulates to the charged matrix of dielectric fibrous by contact between the charged matrix of dielectric fibrous material and a fluidized bed of particulates so that at least some particulates adhere at the charged sites to create a substantially uniform distribution of particulates on individual exposed surfaces;
• removing excess particulates from the charged matrix of dielectric fibrous material, and
• attaching particulates adhering at charged sites by substantially non-transient bonding.

A method of attaching a substantially uniform distribution of particulates to individual exposed surfaces of a film-like material, the method comprising:

• electrostatically charging an apertured film material having individual exposed surfaces to create a substantially uniform distribution of charged sites at individual exposed surfaces;
• applying particulates to the charged apertured film material by contact between the charged apertured film-like material and a fluidized bed of particulates so that at least some particulates adhere at the charged sites;
• removing excess particulates from the charged apertured film material, and
• attaching particulates adhering at charged sites by substantially non-transient bonding.