Both semi-finished and finished products of color water-based colorants require strict quality control management and corresponding testing equipment:
(1) Color paste fineness detection: microscope, particle size distribution analyzer, fineness scraper;
(2) Color intensity and color detection of color paste: color measuring instrument;
(3) Trace content control of limited substances in color paste: gas chromatograph.
(4) The color paste formula requires strict weighing: a scale of one ten thousandth.
(5) The application of color paste is extremely wide, and the laboratory needs to be equipped with many instruments required for application data, such as rotational viscometer, Ford cup, etc.; friction fastness tester; press; oven; shaker; centrifuge; different standard light source. <br /
