Method and system for matching color and coarseness appearance of coatings
AssigneeE.I. du Pont de Nemours and Company
InventorsHartmut Krause, Larry Eugene Steenhoek, Wolfgang Joachim Küpper, Allan Blase Joseph Rodrigues, Wilhelm Kettler
Life of this patent
Estimating the term…
Abstract
The present invention is directed to a method and a system for producing one or more matching formulas to match color and coarseness appearance of a target coating on a substrate. The method provides providing a set of coating chips comprising at least two coating chips having different lightness values, and at least two coating chips having matching lightness values and different coarseness values. This invention provides a simple method and the system for matching color and coarseness appearance of the surface coating.
Claims39
A method for matching color and appearance of a target coating on a substrate, said method comprising the steps of;
- a) providing a set of coating chips each having a chip coating layer thereon and a coarseness value and a lightness value corresponding to coarseness and lightness of said chip coating layer, said set of coating chips comprise at least two coating chips having different lightness values, and at least two coating chips having matching lightness values and different coarseness values;
- b) obtaining target color data of said target coating and producing a target lightness value based on said target color data;
- c) obtaining a target coarseness value of said target coating by a coarseness determination process comprising the steps of:
- i) selecting from said coating chips one or more preliminary matching chips having lightness values that match the target lightness value, ii) selecting from said preliminary matching chips one or more matching chips by comparing chip coating layers of said preliminary matching chips with the target coating, and iii) producing said target coarseness value based on coarseness values of the matching chips;
- and
- d) retrieving one or more preliminary matching formulas from a formula database based on the target color data and the target coarseness value, said formula database comprises coating formulas associated with color data, coarseness values, and lightness values.
A system for matching color and appearance of a target coating on a substrate, said system comprising:
- 1) a set of coating chips each having a chip coating layer thereon and a coarseness value and a lightness value corresponding to coarseness and lightness of said chip coating layer, said set of coating chips comprise at least two coating chips having different lightness values, and at least two coating chips having matching lightness values and different coarseness values.
Dependencies are inferred from the claim text.