Colour change as a result of textile transformations

Abstract

This paper studies the influence of textile structure on its colour. It provides a systematic analysis of the changes in spectral reflectance and hence colour differences between three textile substrates: roving, yarn and woven fabric. The transformations of the reflectance spectrum as a result of the changes of the structure were modelled and the evolutions of the colorimetric coordinates L*, a*, b*, C* and h associated with these various transformations were thus calculated and analysed. The work also offers a useful method of modelling the predicted colour from one substrate form to another, which is important to the textile industry.

Colour recipe prediction using ant colony algorithm: principle of resolution and analysis of performances

“…This minimised the errors in reflectance measurements for this type of woven fabrics; i.e. starting from three measurements, the errors became quasi‐constant …”

“…starting from three measurements, the errors became quasi-constant. [24][25][26][27] For evaluating the colour differences between the target colour and the colour reproduced by the proposed recipe, we adopted the Colour Measurement Committee (CMC)(2:1) differences formula in D65/10° (illuminant D65 and 10° standard observer). 28 It is currently the ISO standard for the textiles industry (ISO 105-J03).…”

Application of ant colony optimization to color matching of dyed cotton fabrics with direct dyestuffs mixtures

“…Each sample was presented at several levels of thickness (four layers) for maximum opacity. Three color measurements were made per sample in multiple locations to minimize the errors in reflectance measurements …”

Colour Mixing Modelling and Simulation: Optimization of Colour Recipe for Carded Fibres

“…Formulas for evaluating S L , S C and S H are provided in [7]. When the CMC distance exceeds a threshold value, usually set equal to 0.8 [8], the colourists have to change the original formula order to reduce the colorimetric distance between the obtained blend and the desired one. This phase is performed by means of a trial and error technique; in detail, the textile technicians perform a carding of the fibres according to their own recipe in order to obtain a blend.…”