Nanoparticle coater

A method of forming a friction modification surface on at least one of a first and a second surface of a glass substrate, the method comprising:

• providing a glass substrate having a first surface, a second surface, and an edge located between the first surface and the second surface, wherein at least one of the first surface and the second surface form an outer surface of the glass article;
• moving the glass substrate past at least a first nanoparticle coater and a second nanoparticle coater;
• depositing nanoparticles onto at least one of the first surface and the second surface to form at least one nanoparticle region located adjacent at least one of the first surface and the second surface, wherein the at least one nanoparticle region comprises nanoparticles partially embedded in the glass substrate, wherein at least a portion of the nanoparticles extend above the at least one of the first surface and the second surface of the glass substrate to form a friction modification surface on the at least one of the first surface and the second surface of the glass substrate, wherein the nanoparticles comprise a material having a lower coefficient of friction than the substate to provide at least one of the first surface and the second surface of the glass substrate with a surface having a lower coefficient of friction than would be present without the nanoparticles,
• wherein the at least one nanoparticle region comprises a first nanoparticle region and a second nanoparticle region comprising second nanoparticles, wherein the second nanoparticle region comprises the at least a portion of nanoparticles forming the friction modification surface, wherein the first nanoparticle region is deposited by at least the first nanoparticle coater at a first depth, and the second nanoparticle region is deposited by at least the second nanoparticle coater at a second depth.

A method of forming a friction modification surface on at least one of a first surface and a second surface of a glass substrate, the method comprising:

• providing a glass substrate comprising a homogeneous body, the substrate having a first surface, an oppositely disposed second surface, and an edge located between the first surface and the second surface, wherein the first surface and the second surface form opposing outer surfaces of the glass article;
• moving the glass substrate past at least a first nanoparticle coater and a second nanoparticle coater;
• and
• depositing nanoparticles to at least one nanoparticle region located adjacent the first surface and at least one other nanoparticle region located adjacent the second surface, wherein the at least one nanoparticle region and the at least one other nanoparticle region comprises nanoparticles partially embedded into a body portion of the homogeneous body of the glass substrate to secure the nanoparticles to the glass substrate, wherein at least a portion of the nanoparticles extend above the first surface and the second surface of the glass substrate to form a friction modification surface on the first surface and the second surface of the glass substrate, wherein the nanoparticles comprise a material having a lower coefficient of friction than the glass substate to provide the first surface and the second surface of the glass substrate with a surface having a lower coefficient of friction than would be present without the nanoparticles.