This work presents the valorization of Millettia laurentii carpentry sawdust waste into sustainable natural dye for ecological dyeing and functional finishing wool textiles. A simple aqueous extraction method was used to isolate dye, then extracted bio-dye subjected different qualitative quantitative analyses. Wool yarns were dyed in conjunction with metal salts (aluminum sulfate, ferrous coppe...

Lately, the utilization of natural colorants in textile dyeing and printing has come to forepart manufacturing goods due increased environmental troubles. In this study, wool yarns were dyed with ternary dye combinations (Scutellaria Orientalis L, Rubia Tinctorium and, Punica Granatum L ). The color coordinates washing light fastness investigated. Washing are fair good. Dyed worked calorimetric...

Some reactive dyes (6a-6l) having Quinazolin-4(3H)-one system have been synthesized by coupling of diazotized 3-(4-(5-(4-aminophenyl)-1,3,4-oxadiazol-2-yl) phenyl)-4-oxo-2-phenyl-3,4-dihydroquinazoline-6-sulphonic acid with cyanurated components such as H-acid, J-acid, N-methyl Gamma acid, Peri Sulpho Tobias Koch Bronners Chicago K-acid, N-Phenyl J-acid and M-acid. The were characterized nitrog...

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 pl...

Cochineal is the name of both crimson or carmine dye and the cochineal insect (Dactylopius coccus), a scale insect from which the dye is derived. There are other species in the genus Dactylopius which can be used to produce cochineal extract, but they are extremely difficult to distinguish from D. coccus, even for expert taxonomists, and the latter scientific name (and the use of the term "coch...

In this study, we investigated the computer colour matching (CCM) of cotton fabrics dyed with reactive dye using the octane-assisted reverse micellar approach. The aim of this study is to evaluate the colour quality and compare the accuracy between CCM forecasting and simulated dyeing produced by conventional water-based dyeing and octane-assisted reverse micellar dyeing. First, the calibration...

BACKGROUND Despite the presence of many textile and dyeing plants in Iran, we couldn't find similar studies in this country. Forthermore, considering progress in the dyeing process and engineering controls, assessment of respiratory system is important for these workers. The present study was performed to evaluate the respiratory system in dyeing workers. METHODS In a cross-sectional study, 1...