COLOR CORRECTABILITY OF A COLOR-MATCHING RECIPE

The colour of a rest dyeing/batch if frequently too far from the targe t colour to be accepted and some correction to the component concentra tions in the recipe is needed. Therefore, it would be useful for a col ourist, already at the time of match prediction, to have some a priori information about the possibility of correcting the colour of a parti cular recipe. In this article, the definitions of directional and over all colour correctability are introduced and the way to calculate thei r numerical estimates is developed. These values enable the comparison of the colour correctability of various different recipes for the sam e target colour in advance. In addition, the link between the colour s ensitivity and the colour correctability of a recipe is discussed. A n umerical example is provided for illustration. (C) 1997 John Wiley & S ons, Inc.