... picks/cm was used for dyeing. The reflectance spectra of the dyed samples were measured by using a Color eye 7000 spectrophotometer of Gretage Macbeth Corporation. Cochineal powder (250 g) was mixed with a required amount of water (1,000 ml) and boiled for 1 h. The extract was cooled to room...

... recycled several times. This information may be useful for further research and practical applications of curcumin. © Emerald Group Publishing Limited 2016 Emerald Group Publishing Limited Licensed re-use rights only Synthesis Colourant Curcumin Heterogeneous catalyst Lihong Gao can...

...Zahra Bazrafshan; Maryam Ataeefard; Farahnaz Nourmohammadian Purpose – This paper aims to report on production of the colour digital printing toners cyan, magenta and yellow. Colour digital electrophotographic printing is currently in high demand. The provision of a large colour gamut depends...