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US 6,146,687 AGranted
Method of coating a fiber
AssigneeGillette Canada Inc.
InventorPranav Desai
Life of this patent
Estimating the term…
Abstract
A method and apparatus for coating a fiber used in oral hygiene. The method comprises aerosolizing a coating and projecting the aerosolized coating particles onto a target area of the fiber. The method also comprises recycling recaptured coating particles for reuse in fiber coating. An apparatus for coating oral hygiene fibers is also described.
Claims11
A method of manufacturing a coated fiber for use in oral hygiene comprising:
- aerosolizing a coating formulation which includes a wax at ambient temperature;
- and delivering the aerosolized particles of the coating formulation onto a target area of a fiber.
A method for delivering an aerosolized volume of a coating in a target area of a fiber used in oral hygiene comprising:
- drawing air under force into a dispensing apparatus containing a coating formulation;
- applying force to the air and to the coating formulation comprised of wax and an additive, sufficient to drive the coating formulation through an aperture of a nozzle to create an aerosolized volume of coating formulation whose ejectile path from the nozzle intersects a target area of a moving fiber;
- recovering coating formulation not deposited on the target area of the moving fiber that is deposited on a surface behind the target area of the moving fiber by heating the surface sufficiently to cause any deposited coating formulation to flow.
Dependencies are inferred from the claim text.