Some small partners see some testing reports of fabrics, and they are very puzzled about the fact that the color that looks not dark is judged as & ldquo; dark & rdquo; & ldquo; why is this color also called dark? ”
In the process of consulting the standard, we often see “ the allowable degree of color fastness to wet friction, the first-class and qualified products of dark color products can be half lower than the standard-rdquo; and the supplementary regulations of dark color products can not help but have a question, is the color of my cloth dark at that time? Looking at the standard carefully, we find that the standard depth of note “> 1/12 is dark ”, what does this mean?
perhaps
The current product standards for dark and light colors are mainly based on the following two standards:
Nbsp; & nbsp; GB/T 4841.3-2006 "Standard Deep Color Cards for Dyeing with Dyes 2/1, 1/3, 1/6, 1/12, 1/25", standard selection of woven products.
GSB 16-2159-2007 "Standard Depth Sample Card for Knitted Products (1/12)", most of the standards for knitted products are selected.
The above two standards all have corresponding 1/12 standard depth color cards, which provide 1/12 standard depth color of each color system. Some of the colors between the two standards are different.
How to determine whether the color is dark?
.jpg)
If the color of the test sample is darker than the corresponding color in the standard depth color card of 1/12, it will be judged as dark, and the intermediate color will be judged according to the similar color reference. It can be seen that the color of the first and second lines in the figure below is dark.
