Improvement of the dyeing and fastness properties of a naphthalimide fluorescent dye using poly(amidoamine) dendrimer

Sadeghi‐Kiakhani, Mousa; Safapour, Siyamak

doi:10.1111/cote.12132

Cited by 23 publications

(5 citation statements)

References 20 publications

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“…Polyamide dyeing is possible with anionic, cationic and disperse (nonionic) dyes because of the presence of terminal –COOH and –NH 2 functional groups in polyamide macromolecular chains. These functional groups have attracted the attention of researchers conducting various studies on the application of different classes of dyes to polyamide textiles .…”

Section: Introductionmentioning

confidence: 99%

Thermodynamic and kinetic studies of the adsorption behaviour of the natural dye cochineal on polyamide 66

Sadeghi‐Kiakhani

Safapour

Mirnezhad

2018

Coloration Technology

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The adsorption behaviour of the natural dye cochineal on polyamide 66 was studied at different pH values. The thermodynamic and kinetic parameters such as standard affinity (−Δμ˚), changes in enthalpy (ΔH˚) and entropy (ΔS˚), diffusion coefficient and activation energy of the diffusion, were determined for pH values of 3 and 6. Results indicated that the experimental data fitted appropriately with the Nernst isotherm. Furthermore, the partitioning ratio and −Δμ˚ decreased significantly with increasing temperature, and it was revealed that the adsorption of cochineal onto polyamide was an exothermic process. The −Δμ˚ value of polyamide dyed at pH 3 was higher than that dyed at pH 6. This is related to higher numbers of electrostatic and non‐electrostatic interactions between cochineal and polyamide at pH 3, whereas at pH 6 non‐electrostatic hydrophobic interactions between cochineal and polyamide are dominant. At pH 6 comparatively higher negative values for ΔH˚ and ΔS˚ were obtained. The diffusion coefficient increased with rises in temperature. The polyamide dyed at pH 3 had a higher diffusion coefficient at every temperature than the polyamide dyed at pH 6. The dyeing rate for polyamide at pH 3 was higher than at pH 6 and reached equilibrium in a shorter time. Furthermore, a lower activation energy of diffusion was obtained at pH 3 compared to pH 6.

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Section: Introductionmentioning

confidence: 99%

Thermodynamic and kinetic studies of the adsorption behaviour of the natural dye cochineal on polyamide 66

Sadeghi‐Kiakhani

Safapour

Mirnezhad

2018

Coloration Technology

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“…There are ways to increase the light fastness of prints, such as the use of more expensive dyes and pigments or use of pearlescent pigments or by adding UV absorbers . Our study is oriented toward the investigation of the influence of 3,6‐dithia‐1,8‐octanediol (DTO) on the light fastness of prints overprinted with water‐based flexographic printing ink.…”

Section: Introductionmentioning

confidence: 99%

Improvement of light fastness of water‐based printing inks with addition of glycerol derivative containing thiol groups

Izdebska‐Podsiadły

Żołek‐Tryznowska

Annusik

et al. 2017

Coloration Technology

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The aim of this work was to study the influence of a glycerol derivative with thiol groups, 3,6‐dithia‐1,8‐octanediol (DTO), on light fastness of prints overprinted with water‐based flexographic printing inks. Laboratory printing was performed on various plastic films (BOPP and PE). The effect of a small amount of DTO on printing ink colour was examined by studying the optical density of a full tone area, relative printing contrast and the colour values (CIELAB), and the total colour difference, ΔEab∗. Artificial ageing was applied in order to investigate DTO influence on colourfastness of CMY printing inks. Densitometry and spectrophotometric parameters were measured during artificial ageing by irradiation. Additionally, FTIR spectroscopy was used to observe the changes in ink film on printing bases before and after ageing. The print quality of investigated prints is widely discussed. In general, DTO addition influenced the printability of the plastic film and the optical density of a full tone area with an acceptable total colour difference ΔEab∗. Furthermore, printing inks with added DTO exhibited higher optical density and smaller changes of ΔEab∗ during artificial ageing. Moreover, the FTIR spectra of printing ink films with added DTO after ageing did not exhibit any perceptible changes in contrast with the original printing ink.

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“…These parameters included water solubility, the nature of the mechanical link between the dye and the fibres, the molecular size of the dye, and the nature of the charge and its location on both the dye molecules and the fabrics. In comparison to other printed dyes that produced moderate to excellent (2–4) outcomes, all dyes printed on polyester fabric gave very good to outstanding (4–5) results [51,52] …”

Section: Resultsmentioning

confidence: 95%

“…In comparison to other printed dyes that produced moderate to excellent (2-4) outcomes, all dyes printed on polyester fabric gave very good to outstanding (4-5) results. [51,52]…”

Section: Fastness Propertieswashing Fastnessmentioning

confidence: 99%

Synthesis, Computational Studies, Molecular Docking, Anti‐inflammatory and Antioxidant Activities of α‐Aminophosphonates Incorporating an Azo Chromophore for Polyester Printing Application

et al. 2023

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Bioisosteres of amino acids called α-aminophosphonates have a variety of therapeutic properties. A set of procedures involving amine, aldehydes and triethylphosphite have been utilized to synthesize these compounds in presence of Lewis acid catalysts such as lithium perchlorate via the Kabachnik-Fields reaction. The diazonium salt of different aromatic amines affords new α-aminophosphonate azo dyes, IIIa-f in high yields. The structure of the newly synthesized compounds was elucidated by FT-IR, 1 HNMR, 13 C-NMR and elemental analysis. The anti-inflammatory and antioxidant of the newly dyes was also examined. Most of the synthesized α-aminophosphonate compounds displayed an excellent to moderate activity against COX-1 and COX-2. To demonstrate the relationship between the theoretical and the experimental characteristics, DFT/6-311G + + (d, p) calculations were performed to investigate the electrical and geometric properties derived from the stable structure of the compounds. The optimized dyes with printing paste conditions, were used to silk screen printing polyester, as well as their printing properties, light, washing, perspiration, rubbing, and sublimation fastness were tested. Meanwhile, the improved dyes demonstrated acceptable fastness results.

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Improvement of the dyeing and fastness properties of a naphthalimide fluorescent dye using poly(amidoamine) dendrimer

Cited by 23 publications

References 20 publications

Thermodynamic and kinetic studies of the adsorption behaviour of the natural dye cochineal on polyamide 66

Thermodynamic and kinetic studies of the adsorption behaviour of the natural dye cochineal on polyamide 66

Improvement of light fastness of water‐based printing inks with addition of glycerol derivative containing thiol groups

Synthesis, Computational Studies, Molecular Docking, Anti‐inflammatory and Antioxidant Activities of α‐Aminophosphonates Incorporating an Azo Chromophore for Polyester Printing Application

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