engleski

BLACK HUES MATCHING PROBLEM IN CLOTHES DESIGNING

In practice the colour matching, in general, is performed based on objective instrumental evaluation of colour parameters and their differences using CIELAB colorimetric system, according to tolerances set by ISO standard. In most cases, the method of instrumental evaluation uses the interval scale in accordance to visual perception of colour and their differences, but in the area of deep dark hues, in this case black hues, the objective evaluation cannot obtained the difference values in accordance to psychological experience of colour. The black hues are characterized with low lightness value on which level the visual perception of colour parameters differ from the measuring results. It is often the case that the instrumental control confirm the colour difference among samples in the range of tolerances set by the ISO standards, while observer perceive certain differences and doesn’t accepts the sample. In this paper the analyze of psychological experience and instrumental evaluation of colour parameters and their differences is performed on group of black textile samples, glossy and matt, with colour coordinates values a* +/-1 ; b* = +/-1, with lightness parameter L* 16. The psychological perception was set based on visual evaluation by 10 observers.

black hues matching; dEab; dL*

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