Results 21 to 30 of about 1,081,398 (291)
FASTNESS PROPERTIES IMPROVEMENT OF FLUORESCENT PIGMENTS [PDF]
, 2022 The resistance of the material to a change of its color characteristics during exposure to sunlight, rubbing and washing as domestic and laundry and other various ways are referred to as color fastness of dyes or pigments.
Mamun Kabir, Shekh Md. +3 more
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Dyeing of Silk Fabric with Natural Wall Nut Tree Wood Dye and Its Ultraviolet Protection Properties
Journal of Natural Fibers, 2022 Maintaining color fastness and endow functionality of the fabrics dyed with natural colorants had been the major constraint of natural dye in modern textile practices. In this work, a natural dye was extracted from wall nut tree wood.
Shiwen Wang +4 more
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Dyeing of polyester fibers with sulfur- and nitrogen-containing anthraquinone derivatives [PDF]
Chemical Industry and Chemical Engineering Quarterly, 2022 A series of disperse dyes, 9,10-anthraquinone containing dithiocarbamate, thiourea and triazole fragments, were prepared via consecutive refunctionalization of aminoanthraquinones in our previous studies and their structures were confirmed by the 1H ...
Deniz Nahide Gulsah +7 more
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Heliyon, 2022 The significance of textile coloration is inevitable as coloration is a critical process and it can be affected by several parameters i. e. time, temperature, pH, and liquor ratio (M:L).
A.T.M. Gulam Moula +6 more
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A fast algorithm for equitable coloring [PDF]
Combinatorica, 2010 An equitable \(k\)-colouring of a graph is a proper vertex colouring with \(k\) colors, in which the sizes of any two colour classes differ by at most one. It was conjectured by P. Erdős and proved by \textit{A. Hajnal} and \textit{E. Szemerédi} [Combinat. Theory Appl., Colloquia Math. Soc.
Henry A. Kierstead +3 more
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Eco-Friendly Dyeing of Viscose Rayon Fabrics Using Anthocyanin from Hibiscus sabdariffa Linn
Journal of Natural Fibers, 2022 This paper investigates the feasibility of dyeing viscose rayon fabric with an anthocyanin solution extracted from H. sabdariffa L. calyces. For eco-friendly dyeing and improvement of the natural dye’s affinity to fabrics, natural mordants instead of ...
Fatemeh Shahmoradi Ghaheh +2 more
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Fast Edge Colorings with Fixed Number of Colors to Minimize Imbalance [PDF]
Journal of Graph Algorithms and Applications, 2006 Summary: We study the following optimization problem: the input is a multigraph \(G = (V, E)\) and an integer parameter \(g\). A feasible solution consists of a (not necessarily proper) coloring of E with colors \(1, 2, \cdots, g\). Denote by \(d(v, i)\) the number of edges colored \(i\) incident to \(v\). The objective is to minimize \(\sum_{v \in V} \
Gruia Calinescu, Michael J. Pelsmajer
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Coloring Fast Without Learning Your Neighbors' Colors
CoRR, 2020 We give an improved randomized CONGEST algorithm for distance-$2$ coloring that uses $Δ^2+1$ colors and runs in $O(\log n)$ rounds, improving the recent $O(\log Δ\cdot \log n)$-round algorithm in [Halldórsson, Kuhn, Maus; PODC '20]. We then improve the time complexity to $O(\log Δ) + 2^{O(\sqrt{\log\log n})}$.
Halldórsson, Magnús M. +3 more
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Polymer Testing, 2022 Poly (2-methyl-1,3-propylene glycol-adipic acid) ester diol (PMA-1000), 2,2-dihydroxymethyl propionic acid (DMPA), toluene diisocyanate (TDI), 1,4-butanediol (BDO), 2,6-diaminoanthraquinone (DAAQ) were used as raw materials, triethylamine (TEA) as ...
Jia Zhao +4 more
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An investigation into the effects of solvent content on the image quality and stability of ink jet digital prints under varied storage conditions [PDF]
, 2010 Increasing numbers of galleries, museums and archives are including ink jet printed materials into their collections, and therefore displays. There is evidence that the instability of these prints is such that images can suffer deterioration in print ...
Sandy, Mark +5 more
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