The best color measurement instrument is one which not only helps to measure the major properties of a specimen which are of high interest, but also which can be re-occurred with the required acceptance. The highly précised measurement is the result of difficult amalgamation of factors like, nature of the specimen, condition of the sample with respect to changing environmental conditions at the time of testing, testing instrument and the technique of performing the test.
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There are vast varieties of products produced in textile industries with different pattern, styles, fabrics and materials. These varieties sometimes create severe difficulties when attempting to produce highly précised visual characteristics of a product in terms of its color and appearance. There is numerous literature which are dealing with the color of a product and its appearance in different light shades. But the main difference between the both is explained as follows: Appearance is explained as not only the color of the material, but it also includes various attributes like its luster, gloss, and translucency. In comparison to this, color is defined only by excluding all the attributes like transparency, gloss, and luster.
Those who belong to textile industry must have the knowledge of the behavior of a different fabric that changes in various light shades. It is a universal fact that the appearance of a textile material changes rapidly when placed under two different sources of light. This phenomenon is known as Metamerism. This causes a significant shift in the appearance and the final output of the product and reveals the entirely different impact on customer demand. Hence, comparing the color and appearance of the fabric in the single light source is not sufficient. In order to prevent such situations, it is mandatory to test the color of the textile material in different light shades so that they appear to be same even in different light conditions.
