Color analysis of natural colorant‐dyed fabrics

Abstract

Colors from naturally dyed fabrics recently have attracted both consumers and manufacturers in fashion markets. Even though color attributes of the fabrics have been partially observed in some literature, a data base of colors for natural colorants in fabrics needs to be established and the colors to be characterized according to systematic color notations and tones in order to relate the traditional natural colors to contemporary color communication systems. Therefore, a study was performed to investigate color characteristics for a given large set of natural colorants-dyed fabrics based on the Munsell color notations, to analyze their tones with relation to the notation such as hue, value, and chroma, and finally to identify the effects of mordanting, an important coloring auxiliary, on the colorimetric properties of the fabrics. As a result, the dominant hue for a total of 350 naturally dyed fabrics was yellowish families followed by reddish and purplish ones in the Munsell notation owing to the use of leaves and plant as usual natural dyestuff, which confirms the limit of color hues of the fabrics. Color value for most of naturally dyed fabrics was generally higher whereas the chroma was lower, which means that most of colors for naturally dyed fabrics tended to be bright and weak shaded. Grayish, light grayish, and soft tones were the main tones of natural colorant-dyed fabrics. All of hue, value, and chroma were found as being influenced by mordanting in that more particularly; iron mordanting was likely to cause the decrease of both value and chroma for most of naturally dyed fabrics. These results could provide a systematic color data for naturally dyed fashion fabrics and suggest a future direction of color development for them.

Intergenerational differences of color sensation and preference for naturally dyed fabrics

“…As for most of specimens, values of L * indicating color lightness were relatively higher while those of C * meaning chroma referred to color saturation were lower. These are supported by some findings [7,8] that naturally dyed fabrics have seemed to be lighter and less strong in color.…”

“…In order to select specimens for yellowish and reddish color by natural dyeing, a total of 390 different 100 % silk fabrics (plain weave, 8.2 g/m 2 , 0.25 mm thickness) dyed with natural colorants reported in a previous study [8] were clustered by their CIELAB color values such as L * , a * , b * , C * , and h. Yellowish specimens were determined among the fabrics with Y or YR of Munsell's hue whereas reddish ones as those with R or RP. Four differently dyed fabrics for each hue group were finally chosen as specimens.…”

“…Therefore the color characteristics of natural dye textiles and their emotional effects on consumers have attracted attention of both industrial manufacturers and researchers. Through some studies [7,8], color shades by natural dyeing were reported as being limited and the intensity of natural dyes as on the lower side. A majority of hue families for natural dyes was yellowish ones followed by reddish and purple.…”

Eco-Dyeing of Silk Fabric withGarcinia Dulcis(Roxb.) Kurz Bark as a Source of Natural Dye by using The Padding Technique

“…Natural dyes are obtained from animals, insects, bacteria, fungi, minerals, and various parts of plants including roots, bark, leaves, flowers, and fruit (Haji 2012;Mongkholrattanasit et al 2013a). Natural dyes are known for their use in the coloration of food, cosmetics, leather, dye sensitizer, medicinal plants, and textile dyeing, and printing (Samanta and Agarwal 2009;Yi and Cho 2008). In the world today, the use of natural dyes for coloration has mainly been confined to artisan craftsmanship, small scale cottage level dyers, printers as well as to small scale exporters and producers, who deal with high-valued ecofriendly textile production and sales (Samanta and Agarwal 2009).…”

Crosscultural comparison of color terms and preference of persimmon‐dyed fabric, Galchon

“…[4][5][6][7] Some studies have reported that colors obtained by natural dyeings are limited and the "intensity" of natural dyes is low. 8,9 The dominant hue family of natural-dyed material is yellowish followed by reddish and purple hues. Mordants and certain auxiliaries, such as metallic salts and chitosan, have been applied to natural-dyed material to improve the limitations in shade.…”