نتایج جستجو برای: dye fastness

تعداد نتایج: 40938  

Journal: :Molecules 2013
Saleh Mohammed Al-Mousawi Morsy Ahmed El-Apasery Mohamed Hilmy Elnagdi

Dyeing of polyester fabrics with thienobenzochromene disperse dyes under conventional and microwave heating conditions was studied in order to determine whether microwave heating could be used to enhance the dyeability of polyester fabrics. Fastness properties of the dyed samples were measured. All samples dyed with or without microwave heating displayed excellent washing and perspiration fastn...

Journal: :Coatings 2023

Large amounts of water, synthetic dyestuffs and chemicals are used in the wet processes textile finishing, at end these processes, liquors containing chemical substances create a waste load. For this reason, it is great importance to develop new wet-finishing that use less chemicals. purpose, layer-by-layer deposition method (LbL) was research as an environmentally friendly, sustainable can be ...

Journal: :Coloration Technology 2023

This paper compares the dyeing of cellulose diacetate (cellulose-based) and polyester fabrics using supercritical carbon dioxide (SC-CO2) aqueous media. The benefits in SC-CO2 were clearly demonstrated lab-based pilot-scale studies terms increased colour strength, uniformity, fastness absence auxiliaries such as dispersing agents or surfactants. In addition, “super-levelling” nature medium was ...

The aim of this research is to develop new mordants and a wide range of colors for natural dyeing of silk. In this study, two new erbium(ΙΙΙ) complexes, [Er(AO)(H2O)7](OAc)3 and [Er(AMH)(H2O)6](OAc)3 (AO = acridine orange, AMH = azomethine-H, and OAc = acetate anion), were synthesized, characterized and used as a mordant for the natural dyeing of silk yarns with an aqueous extract of green waln...

Journal: :Journal of Natural Fibers 2023

In this study, we explore the dyeing properties of extract sappan wood natural dye for coloration wool yarn to find potential use dyed in development eco-friendly textiles. Different characterizations were used know chemistry and its interaction with metal salts wool. Interestingly, found that salts, which are called as mordants reference unmordanted sample, play an important role fixing molecu...

Journal: :Molecules 2018
Ning Yu Shufen Zhang Bingtao Tang Wei Ma Jinjing Qiu

Novel red and purple reactive disperse silicon-containing dyes were designed and synthesized using p-nitroaniline and 6-bromo-2,4-dinitro-aniline as diazonium components, the first condensation product of cyanuric chloride and 3-(N,N-diethyl)amino-aniline as coupling component, and 3-aminopropylmethoxydimethylsilane, 3-aminopropylmethyldimethoxysilane, and 3-aminopropyltrimethoxysilane as silic...

Journal: :Molecules 2012
Alya M Al-Etaibi Morsy A El-Apasery Huda M Mahmoud Nouria A Al-Awadi

A series of 4-hydroxyphenylazopyrazolopyrimidine disperse dyes were prepared via one-pot reactions of p-hydroxyphenylhydrazone, hydrazine hydrate, and acetylacetone or enaminones using microwave irradiation as an energy source. Structural assignments of the dyes were confirmed by X-ray crystallographic structure determination. Instead of discharging the dyebath after each dyeing cycle, the resi...

Journal: :Chemistry 2021

The textile sector is closely linked to environmental pollution as a result of the use toxic chemicals and their disposal in liquid waste, which negatively affects for environment. Moreover, industries, especially wet processing, consume large amount energy, water, chemical auxiliaries. Therefore, there an urgent need find solution that takes problem into account. Considering ultrasound environ...

Journal: :Journal of textile engineering & fashion technology 2022

The goal of this project is to assess the effect natural dye absorption from turmeric powder on cotton fabrics. At commencement, fabrics are mordanted with two different processes, one synthetic mordanting, and another bio mordanting. Both mordanting processes done at 100°C temperature for 60 minutes then dyed 80°C minutes. Application was made mordants. After completing dyeing process, color f...

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