Abstract This paper identifies the materials used to make a brocade belt belonging Qajar courtiers in Iran. consists of two fabric types: red support and golden brocade. Accordingly, this examined skin tannin type, fiber types, dyeing agents, mordant, metal wrapping yarns buckle. Technical imaging, ESI–MS, FORS, FTIR SEM–EDS were identify materials. Multi-band imaging methods included Vis, UVL,...

This work is the first scientific study of khipu dyes and inorganic mordants auxiliaries, paving way for a new approach to understanding khipus’ meaningful materiality, technology, colours. Khipus have usually been described as “Andean knotted records”, but they are much more than complex cords: great part information encoded resides in incredible The objects this two Wari khipus, 1932.08.0001 ...

Nanostructures of metal oxides CuO, and TiO2 were prepared by the hydrothermal method. Also, CuO/TiO2 nanocomposites technique using an equal ratio 1:1 The properties compounds investigated through Field Emission Scanning Electron Microscopy FE-SEM, Transmission TEM, X-Ray Diffraction. images FE-SEM have confirmed that , nanoparticles structured as Nanoparticles, Spherical, CuO/ which mixed in ...

The Opuntia genus is widely recognized as a significant member of the Cactaceae family. eastern Moroccan prickly pear’s wild ecotype renowned for its production fruits superior quality, which are in high demand. Nonetheless, white cochineal (Dactylopius opuntiae) has emerged hazard to persistence indigenous pear population majority country’s territories. Conventional plant propagation technique...

This paper explores the use of portable Raman instruments to characterise natural dye lakes in paint mixtures, as an alternative approach other techniques (e.g. SERS). spectroscopy has indeed been used extensively study dyes pure substances or artistic pigments (dye lakes). However, examination these compounds with is particularly challenging because a strong fluorescence, relatively weak signa...