In this work, raw fibers of a local species of stabraq (milkweed) were scoured, bleached and blended with cotton fibers with a ratio of 75/25 (cotton/stabraq). The improved stabraq fibers, scoured and bleached cotton and the blended fibers were spun into fine yarns and then they were subjected to dyeing with two types of reactive dyes namely, cold brand and high exhaustion brand reactive dye at...

A method that can detect colorant type in food is requisite against illegal practices used non-food-grade colorants food. In this study types of yellow tofu were identified using visible near-infrared (Vis-NIR) and shortwave spectra (SW-NIR) spectroscopy. Chemometrics analysis partial least square-discriminant (PLS-DA) principal component analysis-linear discriminant (PCA-LDA) to classify natur...

Strontium-based red pyrotechnic colorants have fallen into disrepute due to the harmful influence of this alkaline earth metal on adolescents. In context, energetic character, safety, and combustion benign nitrogen gas nitropyrazoles are used for design corresponding lithiated materials, which investigated as potential replacements in current work. For purpose, lithium salts 3,4-dinitro-1H-pyra...

The art of tattooing is a popular decorative approach for body decoration and has corrective value the face. procedure characterized by placing exogenous pigments into dermis with number needles. process creating traditional cosmetic tattoos same. Colorants are deposited in piercing skin needles specific shape thickness, which moistened colorant. (pigments or dyes) most time include impurities ...