Invention Grant
US06644799B2 Method of selecting ink jet inks and receiver in a color set and receiver combination 失效
在彩色和接收机组合中选择喷墨油墨和接收器的方法

Method of selecting ink jet inks and receiver in a color set and receiver combination
Abstract:
A method of selecting a pigment ink set and receiver in combination including: printing at least two color inks onto a set of receiver to form single color patches of a Dmax density (100% dot coverage); measuring the gloss level of each patch and the receiver at a predefined specular angle; calculating the Relative Gloss Difference (RGD%) value of the ink set and receiver combination; and selecting the ink set and receiver such that RGD value is less than 40% when 60° is used as the specular angle, and the RGD value is calculated according to Equation (A): RGD ⁢   ⁢ % = ∑ I = 1 N ⁢   ⁢ &LeftBracketingBar; Gloss ⁢   ⁢ ( Imaged ⁢   ⁢ Areas ) I - Gloss ⁢   ⁢ ( Non ⁢ - ⁢ Imaged ⁢   ⁢ Areas ) &RightBracketingBar; ∑ I = 1 N ⁢   ⁢ Gloss ⁢   ⁢ ( Imaged ⁢   ⁢ Areas ) I Equation ⁢   ⁢ ( A ) where I is a variable which identifies a certain color patch used in the evaluation, N is the total number of color patches used in the evaluation.
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