In the production process, textile fabrics have to go through multiple processes. In this process, due to various reasons such as raw materials, production processes, operations, etc., there are often differences in the color of different batches and even the same batch of fabrics. The difference in the color of the fabric, if the color source is different, the color environment, the color time is different, the evaluation of the color difference is also different. Therefore, in order to accurately evaluate the difference in color and ensure the consistency of the color results, when visually assessing the color, the color matching of the source specified by the merchant must be selected in the standard color light box to avoid visually causing the light source to be non-standard or different. The difference. Commonly used standard light sources are: WENZHOU LUWEI VALVES AND FITTINGS CO.,LTD , https://www.stainlesssss.com
D65 - international standard artificial daylight (average north window light), most customers use it for color
TL84 - three primary color fluorescent lamps, European and Japanese store light sources, commonly used by European and Japanese customers
CWF - cool white light, American store or office light source, used by American customers
UV - UV light for the detection of brighteners or fluorescent dyes on fabrics
A——Sunset light source, reference light source
In order to make the color matching result more accurate, the observation area in the standard color light box cannot have direct direct light to avoid the interference of external light.
The "metachromatic" fabric can also be verified by various light sources in the standard color light box, that is, the two colors of the fabric are matched under a certain light source, but there is a significant difference under another light source. The usual saying is a jump light.
Commonly used light source for textile fabric color evaluation