Results 21 to 30 of about 340,880 (298)

Rendering Viscose Fabrics Dye-able with Basic and Acid Dyes Using Citric Acid and Chitosan Nano Particles Based Finishing Formulation

open access: yesJournal of Natural Fibers, 2022
The innovation anticipated here is the use of our previously prepared chitosan nanoparticles in conjunction with citric acid and sodium hypophosphite for rendering viscose fabrics dyed and finished concurrently in one step with dual classes of dyes ...
Kh M. Mostafa, H. A. Ameen
doaj   +1 more source

Mesomorphic, Computational Investigations and Dyeing Applications of Laterally Substituted Dyes

open access: yesMolecules, 2022
Two groups of laterally substituted non-mesomorphic and liquid crystalline materials bearing monoazo group were prepared and investigated via experimental and theoretical techniques.
Hoda A. Ahmed   +5 more
doaj   +1 more source

Dyeing and UV Protective Properties of Chitosan-Modified Cotton Fabric Treated with Black Rice Extract

open access: yesJournal of Natural Fibers, 2023
Black rice is known as a health-promoting food for its abundant content of anthocyanins. The main objective of this paper is to get functional and eco-friendly materials dyed with black rice extract. In this research work, chitosan-modified cotton fabric
Ke Li, Xiaowen Li, Yawei Li, Chang Wu
doaj   +1 more source

Optimization of a Green Dyeing Process Using Natural Dyes Extracted from Corchorus Olitorius Leaves

open access: yesJournal of Natural Fibers, 2023
The main purpose of this study is to develop a green dyeing process using Corchorus olitorius dye extract. Corchorus olitorius leaves were used as a new dyestuff source that has never been used for cotton fabric dyeing. Dye extraction was performed using
Nesrine Bhouri   +3 more
doaj   +1 more source

Minimal coloring and strength of graphs

open access: yesDiscrete Mathematics, 2000
A proper vertex coloring \(c\) of a graph \(G\) using colors \(1,2,\dots\) is said to be minimal if \(\sum_{v\in V(G)} c(v)\) is minimum among all vertex colorings of \(G\). The vertex strength of \(G\), denoted by \(s(G)\), is the smallest number of colors needed to obtain a minimal coloring of \(G\). (The edge strength of \(G\), denoted by \(s'(G)\),
Hossein Hajiabolhassan   +2 more
openaire   +1 more source

Quantifying tumour-infiltrating lymphocyte subsets: a practical immuno-histochemical method [PDF]

open access: yes, 2007
Background: Efficient histological quantification of tumour-infiltrating T and B lymphocyte (TIL) subsets in archival tissues would greatly facilitate investigations of the role of TIL in human cancer biology.
Timothy G. Cooke   +16 more
core   +1 more source

Eco-Friendly Dyeing of Pretreated Cotton Fabric Using a Natural Dye Extract from Erythrina abyssinica

open access: yesJournal of Natural Fibers, 2022
The increasing awareness of toxicity of synthetic dyes has considerably raised the demand for natural dyes. Retaining color fastness and strength of natural dyes on fabric is the main limitation in textile dyeing with natural dyes.
Scolastica Manyim   +3 more
doaj   +1 more source

Two improved forensic methods of detecting contrast enhancement in digital images [PDF]

open access: yes, 2014
Contrast enhancements, such as histogram equalization or gamma correction, are widely used by malicious attackers to conceal the cut-and-paste trails in doctored images.
Xufeng Lin   +5 more
core   +1 more source

Process Maximization of Salt Free Reactive Dyeing on Cotton using Taguchi Approach

open access: yesBioResources, 2023
This study optimized the salt free reactive dyeing process using the Taguchi approach. Dyeing of cotton fabric with reactive dyes is popular because of its bright and brilliant color in various shade ranges.
Shekh Md. Mamun Kabir
doaj   +2 more sources

Optimized Dyeing of Cotton with semi-synthetic Embelin Ninhydrin Dye Obtained by Chemical Modification of Embelin from Embelia Schimperi

open access: yesJournal of Natural Fibers, 2022
Chemical modification is a promising path to address the limitations of a natural dye, such as limited shades and inadequate fastness properties. This study investigated the modification of embelin (2, 5-dihydroxy-3-undecyl-1, 4-benzoquinone) a plant ...
Margaret C. Koske   +3 more
doaj   +1 more source

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