Patent ID: 6285453
Filing Date: 2001-09-04
Classification: B01F,D01F,D06B,G01J

Abstract:
An on-line color monitoring and control system, comprising:feeder means for feeding colorant in a given amount in order to achieve a desired color of a product;mixer means for mixing said colorant in order to obtain said product;light generating means for generating light and directing the light toward said product so that light is reflected from said product;sensor means responsive to the light reflected from said product for sensing a color characteristic of said product and providing a color sensor output; andprocessing means for processing the color sensor output to generate at least one control signal for provision to said feeder means, whereby to adjust the given amount of colorant fed by said feeder means to said mixer means;wherein said light generating means directs the light toward a reference arrangement which transmits reflected reference light toward said sensor means, said sensor means being additionally responsive to the reflected reference light for sensing the color characteristic of said product.