An ecological approach has been obtained by using natural dyes and mordant for dyeing process. Fabrics dyed using myrobalan extract as natural mordants and green dye. A red color were obtained by using theses mordants. The color of dyed fabrics was investigated in CIELab L, a and b and K/S values. Finally, all dyed fabrics were tested for wash and light fastness properties as per ISO standard t...

The Derivative Spectrophotometry usually improves resolution bands, eliminates the influence of background and provides more defined fingerprints than original spectra, hence enhancing the detectability of minor spectral features. In this work, different madder types were collected and applied for dyeing woolen yarns used in Persian carpet in conventional pre-mordanting and dyeing process with ...

In the present work an evaluation was carried out on the effect dye-bath pH and mordant type on the obtained shades and fastness properties in wool dyeing with cochineal. In this way wool samples were first mordanted with four different mordants and subsequently dyed with cochineal at different levels of dye-bath pH. Colorimetric evaluations were carried out and fastness properties of the dyed ...

the medicinal part of rubia tinctorum is the dried root. the small yellowishgreen flowers are in loose, leafy, long-peduncled terminal or auxiliary cymes. the margin of the calyx is indistinct, 4- to 5-sectioned and has a tip that is curved inward. there are five stamens and an inferior ovary. the fruit is a black, pea-sized glabrous, smooth drupe containing two seeds. the perennial plant grows...

The dyeing of wool fibers using saffron petals as a natural dye has been studied for first time in this paper. Saffron petal is one of the by-products of fields which are thrown away after harvesting while they can possibly be used. A series of dyeing formulation prepared with saffron petals and different mordants and the mordant effect on hue, light and wash fastness of dyed fibers were invest...

An ecological approach has been obtained by using natural dyes and mordant for dyeing process. Silk fabrics dyed using natural mordants: powder of sour pomegranate and sweet pomegranate and mixture them. A beautiful red color were obtained by using theses mordants. The color of dyed silk fabrics was investigated in CIE Lab L, a and b and K/S values. Finally, all dyed fabrics were tested for was...

Understanding the dyeing behaviors of reactive dyes onto cotton in non-aqueous media is helpful to facilitate development sustainable dyeing. Here, thermodynamic characteristics with liquid paraffin (LP) and decamethylcyclopentasiloxane (D5), were investigated compared those aqueous medium. The results showed that adsorption isotherms LP, D5, water accorded Freundlich model, indicating proceede...