One Step Printing and Functionalization of Microwave Pretreated PET Fabric Using New Azo Amino Thiazole Disperse Dye

Elmaaty, Tarek Abou; Ramadan, Shaimaa M.; Elnagar, Khaled; Zaghloul, Dalia; El‐Taweel, F. M. A.

doi:10.1007/s12221-020-9273-5

Cited by 5 publications

(2 citation statements)

References 21 publications

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“…They investigate the ability of fungicides used against fungi with long-term incubation times. Esteves and Pereira (2009), Sahin and Mantanis (2011); Monacoa et al (2011); and Ozgenc et al (2012) have used UV spectrophotometer to measure color parameters, including the whiteness (WI) and yellowness indices (YI) that were calculated from the CIE Lab color system (Elnagar et al , 2012; Elmaaty et al , 2020). The accurate measurement of color using the spectrophotometric technique requires calibrating the equipment against standard reference (s) traceable to the SI measurement system (Hunt, 1999).…”

Section: Introductionmentioning

confidence: 99%

Colorimetry for evaluating the preservation efficiency of some triazole fungicides in archeological wooden artifacts

El-Gamal

Elnagar

Tharwat

et al. 2022

PRT

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Purpose This study aims to use whiteness (WI) and yellowness indices (YI) that were calculated from the International Commission on Illumination (CIE) color parameter to evaluate the efficiency of some triazole fungicides [propiconazole (C15H17Cl2N3O2) and tebuconazole (C16H22ClN3O)] to protect wooden artifacts from fungal deterioration. Design/methodology/approach Archeological wooden samples were collected from some historical Islamic buildings in Cairo, Egypt. Three species of fungi were identified in previous work. Propiconazole and tebuconazole with different concentrations treated the infected wooden samples aged for different periods. WI and YI of studied samples were measured using UV spectrophotometer. Calibration and uncertainty estimation accompanied by color measurement were studied. Findings Studying the uncertainty sources of diffuse reflection of the standard white tiles revealed that the uncertainty of calibration for both the spectrophotometer and white tiles had the highest contribution. The treated samples with tebuconazole and propiconazole fungicides gave good resistance against fungal deterioration at 0.50% for WI and YI. Originality/value This study presents the importance of colorimetry in the conservation field because they are considered one of the most important criteria to evaluate conservation materials. From color measurements and their uncertainties, it became clear that triazole fungicides have good efficiency in the protection of wooden artifacts from fungal deterioration. The value of this study is that propiconazole and tebuconazole fungicides at 0.50% can be applied to archaeological wood that is endangered to improper conditions, especially in the case of high levels of relative humidity.

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Section: Introductionmentioning

confidence: 99%

Colorimetry for evaluating the preservation efficiency of some triazole fungicides in archeological wooden artifacts

El-Gamal

Elnagar

Tharwat

et al. 2022

PRT

View full text Add to dashboard Cite

show abstract

“…As a kind of common industrial material, azo compounds are extensively used as dyes, pigments, drugs, and energetic materials. − While most monoamines can be easily coupled to azo products without worrying much about byproducts, the oxidative coupling of polyamines not only forms multiple intermediates and excessive oxidation byproducts but also may lead to a variety of isomers (Figure A), − thus creating formidable barriers for a simple and low-cost synthesis of aminoazo compounds. Therefore, developing a direct synthetic route for a selective oxidative coupling of polyamines can efficiently increase the construction speed, allowing for easier industrial production, and is thus considered both challenging and rewarding …”

mentioning

confidence: 99%