MANOCAN ANUN? A IN MAROC, industria textil√ œn lume - Institutul National de Cercetare ...

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However some of the wool fibers are gray, brown or black. These colors, which are not desirable, grow out of the pigments in the cortex layer [1].

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Sheep inherit the genes from their parents that make its wool naturally colored. There are many possible patterns: all white, several mixed patterns including piebald and solid color.


The color can be black, dark or light grey, or dark or light brown [2]. In protein fibers melanin pigment MANOCAN ANUN?

industria textil√ œn lume - Institutul National de Cercetare ...

A IN MAROC. Melanin is a natural protein pigment, produced by specialized cells called melanocytes. Melanins are classified into eumelanin, whose color is black-brown to black, and pheomelanin, whose color is yellow to red-brown [4].

Although there are some studies in order to improve a genetic strain by selection, pigmented wool fibers have an important portion among the total production.

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For this reason evaluation of pigmented wools have great importance. The well-known end-use of natural colored wool is handcrafts. Spinners, weavers, felters and other wool crafters use the wool from colored sheep for its natural look and its absence of dye chemicals.

Colored wool is also processed by commercial manufacturers into yarn, and may be made into woven or knitted garments, blankets and rugs, and other items [5].

But these pigmented wools are considered as second quality for the reason that they canÖt be bleached and dyed into desired colors. Consequently they are generally used in production of filling material, felt, carpet etc.

The aim of this study is to supply new usage areas for pigmented wools via partially bleaching and dyeing. After performing these treatments, the fibers can be dyed into various colors, such as red, green etc.


Dyeing can be one of the most costly steps in fabric finishing due to water and energy use, and waste production. With naturally colored cotton, textile mills can reduce processing costs by using less water and energy.


In spite of the aforementioned economical and ecological benefits, natural colored cotton is used by specific producers for niche market goods [6, 7]. Although there are many studyes on the production and the Site- ul dating pentru seniori liberi of naturally colored cotton fibers, researches on naturally colored MANOCAN ANUN?

A IN MAROC are concentrated on bleaching pigmented wool fibers [8â14], but there is also opportunity to use them in their own colors.

By the way, the same advantages of naturally colored cotton fibers will be obtained. In this research, the optimum method for bleaching pigmented wool fibers was determined and dyeability of these bleached fibers to various colors was examined. Furthermore, the usage possibility of pigmented wool fibers in their own colors black, dark brown by homogenization of the color via dyeing was investigated.