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Artigos de revistas sobre o tema "Dyes and dyeing Chemistry"

Autor: Grafiati

Publicado: 4 de junho de 2021

Última modificação: 31 de janeiro de 2023

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1

Cui, Shuling. "Structure and dyeing properties of jade fibre." Pigment & Resin Technology 43, no. 3 (April 29, 2014): 139–44. http://dx.doi.org/10.1108/prt-08-2013-0071.

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Purpose – Based on clarifying the structural difference between jade fibre and general polyester fibre, this paper aims to study the dyeing properties and dyeing adsorption mechanism of jade fibre with disperse dye and cationic dye. Design/methodology/approach – The chemical structure and microstructure of jade fibre were briefly explained comparing with ordinary polyester fibre. The dyeing rate curve and dyeing adsorption isotherm of disperse dyes and cationic dyes on jade fibre were, respectively, studied. The dyeing uptake, dyeing absorption mechanism, and the main dyeing process parameters

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2

Atav, Riza, Elçin Güneş, Deniz İzlen Çifçi, and Yalçın Güneş. "Comparison of Wool Fabric Dyeing with Natural and Synthetic Dyes in View of Ecology and Treatability." AATCC Journal of Research 7, no. 6 (November 1, 2020): 15–22. http://dx.doi.org/10.14504/ajr.7.6.3.

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The aim of this study was to compare the fastness properties and wastewater quality in obtaining the same color on 100% woven wool fabric with natural (madder) and synthetic (1:1 metal complex) dyes. The same color, with similar wet fastness properties, was obtained on the wool fabric when dyed with either dye. On the other hand, conductivity, chemical oxygen demand (COD), and the ammonia nitrogen (NH3-N) content of dyeings carried out with the synthetic dye mixture were considerably higher than dyeing with madder root extract, and its pH was more acidic. However, the amount of volatile suspen

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3

VERMA, MONA, SAROJ S. JEET SINGH, and NEELAM M. ROSE. "OPTIMIZATION OF REACTIVE DYEING PROCESS FOR CHITOSAN TREATED COTTON FABRIC." Cellulose Chemistry and Technology 56, no. 1-2 (March 1, 2022): 165–75. http://dx.doi.org/10.35812/cellulosechemtechnol.2022.56.16.

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The colour of textiles plays an important role in the marketability of fabrics, due to its psychological and eye-catching effects on consumers. Synthetic dyes are widely used in the textiles industry due to their ability to reproduce different colours and shades, easy application method and huge production to fulfill the demands of ever-increasing population. Reactive dyes are most commonly used for cotton fabric, due to their brilliant colours and good washing fastness. However, the major problem with reactive dyes is that they consume huge amounts of alkali or salts as mordant for the fixati

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4

Shimo, Salima Sultana, and Md Zulhash Uddin. "Energy Level and Chemical Class of Disperse Dyes—Plausible Characteristics of Level Dyeing Performance." AATCC Journal of Research 8, no. 4 (July 1, 2021): 15–19. http://dx.doi.org/10.14504/ajr.8.4.3.

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The level dyeing index (LDI) is a measure of dye performance influenced by the dye migration process, ensuring the maximum uniformity of dye redistribution onto the fabric surface. The current study evaluates the level dyeing performance on polyester according to the energy level (low and high) and chemical classes (azo and anthraquinone based) of the three disperse dyes studied. The best levelness was obtained using C.I. Disperse Red 73 (an azo-based, low-energy level disperse dye), which exhibited the highest migration index (MI%) value. LDI results were obtained from the ratio of the exhaus

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5

Cheng, Yu-Wen, Jean-Sebastien Benas, Fang-Cheng Liang, Shang-Ming Lin, Ting-Wang Sun, Fu-Chieh Liu, Yang-Yen Yu, and Chi-Ching Kuo. "Synthesis of Azo Disperse Dyes with High Absorption for Efficient Polyethylene Terephthalate Dyeing Performances in Supercritical Carbon Dioxide." Polymers 14, no. 15 (July 26, 2022): 3020. http://dx.doi.org/10.3390/polym14153020.

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Supercritical carbon dioxide dyeing (SCDD) not only enables strong dyeing performance for a versatile range of polymer material but is also regarded as a green chemical media due to its low environmental impact as well as low risk of product denaturation. Over the decades, azo disperse dyes have been revealed to be efficient dyes and represent the wide majority of dyeing material. Azo dyes possess a wide variety of functional groups to optimize dye synthesis and tune the light absorption properties. Using SCDD, end-chain of different lengths, and functional group exhibiting various electronic

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6

Pawar, Ashitosh B., Kaustubh C. Patankar, Pallavi Madiwale, and Ravindra Adivarekar. "Application of chemically modified waste Allium cepa skin for one bath dyeing of polyester/wool blend fabric." Pigment & Resin Technology 48, no. 6 (November 4, 2019): 493–501. http://dx.doi.org/10.1108/prt-11-2018-0118.

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Purpose The purpose of this paper is to highlight the one bath dyeing method for polyester/wool (PES/Wo) blend fabric with two different semi-synthetic azo dyes developed by chemically modifying the outer skin of Allium cepa. Design/Methodology/Approach Chemical modification is the most heartening way to impart improved properties to natural sources. Two different primary amines were coupled with the Allium cepa skin extract by a diazo coupling reaction. Synthesised dyes were characterized for their percentage yield, solubility tests, melting point, particle size analysis as well as FTIR spect

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7

Gaffer, Hatem, Hamada Mashaly, Shaymaa Hassan Abdel-Rhman, and Mamdouh Hammouda. "Synthesis of novel dyes based on curcumin for the creation of antibacterial silk fabrics." Pigment & Resin Technology 46, no. 6 (November 6, 2017): 478–84. http://dx.doi.org/10.1108/prt-11-2016-0112.

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Purpose The study reported in this paper aims to synthesize some new curcumin containing sulphadiazine and sulphathiazole dyestuffs and study their application in dyeing silk fabrics rendering the dyed fabric antibacterial. Design/methodology/approach Simultaneous dyeing and antibacterial finishing for silk fabric using a new antibacterial acid dye having a modified chemical structure to curcumin were conducted. This modification of curcumin dye was carried out by introducing sulphonamide containing heterocyclic rings sulphadiazine and sulfathiazole through coupling with curcumin. All newly sy

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8

Maradiya, Hari, and Vithal Patel. "Dyeing of hydrophobic fabrics with disperse dyes." Journal of the Serbian Chemical Society 66, no. 6 (2001): 367–76. http://dx.doi.org/10.2298/jsc0106367m.

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A series of disperse dyes has been synthesized by diazotisation of 2,6-dibromo-4-nitroaniline and coupled with various N-arylmaleimides. The dyes were characterized by IR spectral studies, visible absorption spectroscopy and elemental analysis. All the dyes were applied as disperse dyes on nylon, cellulose triacetate and polyester fabrics. These dyeswere found to give yellowish orange to deep brown shades with very good depth, levelness and brightness on different fabrics. The percentage dye bath exhaustion and fixation on fabrics were found to be very good. The light, washing, rubbing, perspi

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9

Li, Guanggen. "Extraction and Dyeing Techniques of Traditional Vegetable Dyestuffs." International Journal of Analytical Chemistry 2022 (July 9, 2022): 1–6. http://dx.doi.org/10.1155/2022/4173886.

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In order to explore the influencing factors of the extraction of vegetable dyes, a research method for the extraction and dyeing of traditional vegetable dyes was proposed. In this paper, the effects of extraction temperature, extraction time, and the ratio of solid to liquid on the extraction effect were discussed through orthogonal experiments. The dyeing process of silk extract was used in this study. The silk fabric was directly dyed with natural dye from peach leaves, compared with the three dyeing methods of premordant, same-bath mordant, and postmordant, and the color fastness to soapin

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10

PAKHOLIUK, OLENA, IRINA MARTIROSYAN, VIRA LUBENETS, and OKSANA PEREDRII. "INFLUENCE OF “COLD” DYEING TECHNOLOGY ON FABRIC CHARACTERISTICS." Cellulose Chemistry and Technology 55, no. 7-8 (August 30, 2021): 911–17. http://dx.doi.org/10.35812/cellulosechemtechnol.2021.55.77.

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"The current work presents a comparative analysis of the colour fastness against repeated washing of cellulose-containing fabrics dyed by “cold” and classical technologies, using different types of active dyes, at various concentrations in the dye bath. Mathematical models have been proposed to describe the determined dependencies. The study uses Reakol dyes – a trademark of bifunctional active dyes manufactured by Khimtex (Kherson), which can be used for “cold” resource-saving dying technologies. The studied active dyes are characterized by a wide colour spectrum, good solubility, colour puri

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11

Huang, Jingming, Hongjuan Zhang, Liujun Pei, and Jiping Wang. "Relationship between Structure and Dyeing Properties of Disperse Dyes in D5 Medium." AATCC Journal of Research 8, no. 2_suppl (December 2021): 59–62. http://dx.doi.org/10.14504/ajr.8.s2.12.

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In this paper, two disperse dyes with different substituents were selected to dye polyester fabrics in decmethylcyclopentasiloxane (D5) medium. The structures and dyeing performance of the two dyes were studied and compared. The results showed that dyes with lower solubility in D5 medium had higher dyeing rates. DFT calculations showed that large steric hindrance of cyano groups on diazo components contributed to improving the dyeing rate. This was due to the generation of more monomolecular dyes by destroying π-π stacking interactions. These results provide theoretical guidance for improving

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12

Dehnavi, E., A. Shams-Nateri, and H. Khalili. "Wool dyeing with binary mixture of natural dyes." Pigment & Resin Technology 45, no. 1 (January 4, 2016): 52–61. http://dx.doi.org/10.1108/prt-06-2014-0045.

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Purpose – This paper aims to focus on the absorption behaviour of single and binary mixtures of natural dyes on wool. Natural dyes are multi-components with different structures and properties. Design/methodology/approach – In this research, the absorption behaviour of single and binary mixtures of natural dyes was investigated on wool fibre. Study was conducted via some natural dyes, including pomegranate peel as a yellow natural dye with tannin, weld as a yellow natural dye without tannin and madder as a red natural dye without tannin. Applied mordant was alum, which was used in the pre-mord

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13

Al-Soliemy, Amerah, and Fatimah Al-Zahrani. "Synthesis of novel disperse dyes based on curcumin for the creation of antibacterial polyester fabrics." Pigment & Resin Technology 48, no. 6 (November 4, 2019): 502–7. http://dx.doi.org/10.1108/prt-10-2018-0112.

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Purpose This study aims to synthesize some new curcumin containing Aroyl derivatives dyestuffs and study their application in dyeing polyester fabrics, rendering to their antibacterial evaluation. Design/methodology/approach Modification of curcumin dye was carried out by introducing benzoyl rings through coupling with curcumin. All newly synthesized dyes were characterized by elemental analyses and spectral data (IR, 1 H-NMR and MS). Moreover, the optimal dyeing condition was assigned. Antibacterial activities of the dyed samples at different concentrations of both dyes were studied against g

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14

Islam, Md Touhidul, Tarekul Islam, Tarikul Islam, and Md Reazuddin Repon. "Synthetic Dyes for Textile Colouration: Process, Factors and Environmental Impact." Textile & Leather Review 5 (August 8, 2022): 327–73. http://dx.doi.org/10.31881/tlr.2022.27.

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Dyes are substances that enhance the appearance of finished goods by providing uniform colour. Dyeing is the application process of dyes that are fixed in textile fibers. The dyeing process uses various steps, including pre-treatment, desizing, scouring, bleaching, carbonizing, degumming, and mercerization. Water is considered the primary medium for applying dyes and other chemicals for this treatment in the dyeing process. The dyeing process contains many toxic chemicals, metals and non-soluble substances, such as wastewater, which is thrown into the environment. It is noted that, during dyei

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15

Penthala, Raju, Rangaraju Satish Kumar, Hyorim Kim, Gisu Heo, and Young-A. Son. "Synthesis, Generic Dyeing of Nindigo Derivatives on Unmodified Polypropylene; First Time Application in Dyeing Technology." Journal of Nanoscience and Nanotechnology 19, no. 11 (November 1, 2019): 7105–11. http://dx.doi.org/10.1166/jnn.2019.16643.

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Hydrophobic nindigo dyes were designed and successfully synthesized from indigo by reacting with substituted anilines in a simple route. Four nindigo dyes were fruitfully analyzed by 1H NMR 13C NMR, electronic and mass spectrometry. Here, we have firstly introduced these nindigo dyes into dyeing area for the dyeing of unmodified polypropylene fiber in aqueous medium. Dyeing experiments has been performed by using didodecyldimethylammonium bromide dispersing agent to make dye-dispersant complex for enhancing the dispersion of dyes. All the dyes were displayed profound blue color hue on polyprop

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16

Tang, Wencheng, Liujun Pei, Hongjuan Zhang, Lei Zhu, and Jiping Wang. "Effect of Pretreatments on Wettability and Dyeing Property of Cotton Fibers in an Environmentally Friendly Dyeing System." AATCC Journal of Research 8, no. 5 (September 1, 2021): 1–10. http://dx.doi.org/10.14504/ajr.8.5.1.

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To investigate the influence of cotton wettability on its dyeing properties in a silicone non-aqueous dyeing system, alkali pretreatment was performed before dyeing. The dyeing properties and dyeing kinetics of reactive dyes in the non-aqueous system and a conventional dyeing system were compared. Alkali pretreatment significantly improved the wettability of cotton fiber by removing wax and pectin. The adsorption rate of dye increased with increased cotton fiber wettability using the non-aqueous system, while it barely changed using the conventional system. Pseudo-second-order kinetics fit wel

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17

Gao, Aiqin, Hongjuan Zhang, and Kongliang Xie. "Synthesis of a novel tetrakisazo navy-blue reactive dye based on DSD acid and its synergistic blackening property." Pigment & Resin Technology 44, no. 6 (November 2, 2015): 386–91. http://dx.doi.org/10.1108/prt-10-2014-0095.

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Purpose – The purpose of this paper is to synthesise a tetrakisazo reactive dye and to characterise its dyeing property to meet the demand for better black reactive dyes. Design/methodology/approach – The novel tetrakisazo navy-blue reactive dye based on 4,4′-diaminostilbene-2,2′-disulphonic acid was designed and synthesized. The dyeing behaviour of it on cotton fabric was discussed. The synergistic blackening effect and absorbance spectra were investigated by absorbance and reflectance spectra, K/S and colorimetric data. Findings – The exhaustion and fixation of the designed reactive dye were

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18

Cui, Shuling, and Chunxiao Dou. "Dyeing properties of PSA/MPIA blended yarn." Pigment & Resin Technology 43, no. 5 (August 26, 2014): 256–62. http://dx.doi.org/10.1108/prt-12-2013-0117.

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Purpose – The purpose of this paper was to study the dyeing properties of polysulphonamide (PSA)/aramid 1313 (MPIA) blended yarn by selecting suitable dyes and carriers required in the dyeing process. Design/methodology/approach – Dyeing the blended yarn with cationic dyes, acid dyes, disperse dyes, reactive dyes and pigment, and comparing the shades, K/S values and fastness of the blended yarns. Findings – The PSA/MPIA blended fibre is suitable for dyeing with the cationic dye at high temperature and pressure in the presence of carrier acetophenone, and good homochromatism is seen on the two

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Pei, Liujun, Nan Jiang, and Jiping Wang. "Dyeing Properties of Polyester/Cotton Blended Fabric in the Silicone Non-Aqueous Dyeing System." AATCC Journal of Research 8, no. 2_suppl (December 2021): 5–8. http://dx.doi.org/10.14504/ajr.8.s2.2.

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Polyester/cotton blended fabrics have been extensively used in the textile industry. However, the dyeing process of polyester/ cotton blended fabrics is complex, and a large amount of water is consumed. To increase the dye uptake and dye fixation ratio, and reduce wastewater effluents, the dyeing performance of polyester/cotton blended fabric was studied in one bath and two steps using the silicone non-aqueous dyeing system. When dyeing 1 kg of polyester/cotton blended fabric, only 1.17 kg of water was consumed, and no wastewater was discharged after dyeing. The washing fastness, staining fast

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20

Ilic, Vesna, Zoran Saponjic, Vesna Vodnik, Darka Mihailovic, Petar Jovancic, Jovan Nedeljkovic, and Maja Radetic. "A study of the antibacterial efficiency and coloration of dyed polyamide and polyester fabrics modified with colloidal Ag nanoparticles." Journal of the Serbian Chemical Society 74, no. 3 (2009): 349–57. http://dx.doi.org/10.2298/jsc0903349i.

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In this study, the influence of dyeing on the antibacterial efficiency of polyamide and polyester fabrics loaded with colloidal Ag nanoparticles and the influence of the presence of Ag nanoparticles on the color change of dyed fabrics were investigated. Dyes C.I. acid green 25 and C.I. disperse blue 3 were used for dyeing of polyamide fabrics, while dye C.I. disperse violet 8 was used for dyeing of polyester fabrics. The influence of Ag nanoparticles on the color change of polyamide fabrics depends on the dye type, but generally it was lower compared to polyester fabrics. Polyester fabrics exh

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21

Lagvilava, Irma, Tea Matitaishvili, Ia Iardalashvili, and Elizbar Elizbarashvili. "A one-pot synthesis of some novel tetrakisazo disperse dyes bearing twenty-membered macrocyclic poly(azomethine)." Collection of Czechoslovak Chemical Communications 74, no. 3 (2009): 409–18. http://dx.doi.org/10.1135/cccc2008064.

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Multiple-chromophore-containing dyes have been synthesized by azo coupling of twenty-membered poly(azomethine) dye 1 and 3-nitro- (2a) or 2,4-dinitrobenzene-1-diazonium tetrafluoroborate (2b) in solvents of various polarity (water, chloroform) in the presence or absence of dibenzo-18-crown-6 as phase transfer catalyst. The dyeing ability of the dyes was investigated as well as spectral and kinetic study of azo coupling was performed. The obtained disperse dyes are suitable for dyeing Nylon and polyester fibers from light reddish-brown to dark brown colors with good uniformity of dyeing as well

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Maradiya, Harir. "Monoazo disperse dyes based on 2-amino-1,3,4-thiadiazole derivatives." Journal of the Serbian Chemical Society 67, no. 11 (2002): 709–18. http://dx.doi.org/10.2298/jsc0211709m.

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A series of monoazo disperse dyes based on 2-amino-5-mercapto-1,3,4-thiadiazole was prepared by coupling with various N-arylmaleimides. The dyeing performance of these dyes was assessed on nylon fabric. The dyes were found to give yellow to brown colour shades on dyeing with good depth and levelness on nylon fabric. The dyebath exhaustion fixation and fastness properties of the dyes were also determined. The dyed fabric showed moderate to good light fastness and very good to excellent fastness to washing, rubbing, perspiration and sublimation. The IR and visible range spectral properties of th

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23

Cheng, Yu-Wen, Jean-Sebastien Benas, Fang-Cheng Liang, Shang-Ming Lin, Yu-Hang Huang, Wei-Wen Chen, Yu-Ting Chen, Chen-Hung Lee, Yang-Yen Yu, and Chi-Ching Kuo. "Red Disperse Azo Dye Side Chains Influence on Polyethylene Terephthalate Dyeing Performances in Supercritical Carbon Dioxide Media." Polymers 14, no. 24 (December 15, 2022): 5487. http://dx.doi.org/10.3390/polym14245487.

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Supercritical carbon dioxide dyeing (SDD) as a dyeing media not only provides a friendly dyeing environment but also significantly increases polymeric dyeing performances ascribed to strong azo dye affinity. Disperse azo dyes have shown to be highly efficient dyeing agents due to their facile coupling synthesis, side chains position, and length tunability to optimize absorption properties. Herein, we first synthesize two series of disperse red azo dyes via a coupling chemical route. Further, we investigate the position of the electron withdrawing group and alkyl chains length impact onto the a

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24

Patel, Hitendra. "Synthesis, characterization and dyeing behavior of heterocyclic acid dyes and mordent acid dyes on wool and silk fabrics." Journal of the Serbian Chemical Society 77, no. 11 (2012): 1551–60. http://dx.doi.org/10.2298/jsc120110047p.

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Novel heterocyclic acid and mordent acid dyes were synthesized by the coupling of diazonium salt solution of different aromatic amines with 2- butyl-3-(4-hydroxybenzoyl)benzofuran. The resulting heterocyclic acid dyes were characterized by spectral techniques, i.e., elemental analysis, IR, 1HNMR, 13C-NMR spectral studies and UV- visible spectroscopy. The dyeing performance of all the heterocyclic acid dyes was evaluated on wool and silk fabrics. The dyeing of chrome pre treated wool and silk fabrics showed better hues on mordented fabrics. Dyeing of wool and silk fabrics resulted in pinkish bl

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Ali, NF, EM El-Khatib, and Fatma A. Bassyouni. "Utilization and characterization of natural products pretreatment and dyeing wool fabric by natural dyes with economical methods." Journal of Textile Engineering & Fashion Technology 8, no. 6 (November 9, 2022): 178–83. http://dx.doi.org/10.15406/jteft.2022.08.00319.

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Natural dyes are eco- friendly and they used in dyeing textile fabrics. This requires recent researches for application of natural dyes to obtain smart textile fabrics. Natural dyes extracted from plants, insects and microorganisms, they help to reduce health hazards and pollution to the environment and extend the sustainable use in textile. This review interested in using green chemistry application in dyeing textile fabrics with economic methods. It is also interested in application of nanotechnology in pre-treatment of wool fabric and dyeing with natural dyes. There is a great demand for an

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Iqbal, Kashif, Amjed Javid, Abdur Rehman, Aisha Rehman, Munir Ashraf, and Hafiz Affan Abid. "Single bath dyeing of modified nylon/cotton blended fabrics using direct/acid dyes." Pigment & Resin Technology 49, no. 3 (January 2, 2020): 165–70. http://dx.doi.org/10.1108/prt-09-2019-0084.

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Purpose This study aims to deal with the dyeing of nylon-/cotton-blended fabric in one bath using direct and acid dyes. Design/methodology/approach The cellulose in cotton/nylon-blended fabric was chemically modified using 3-chloro-2-hydroxypropyl tri-methyl ammonium chloride (CHPTAC) as cationizing agent to impart positive charge on the cellulose. The modified and unmodified blended fabrics were dyed in a single bath with direct and acid dyes under various concentrations of 0.5, 1, 2, 4 and 6 per cent on the weight of fabric by exhaust method. The dyeing of modified and unmodified fabrics was

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Al-Etaibi, Alya M., and Morsy Ahmed El-Apasery. "Facile Synthesis of Novel Disperse Dyes for Dyeing Polyester Fabrics: Demonstrating Their Potential Biological Activities." Polymers 14, no. 19 (September 22, 2022): 3966. http://dx.doi.org/10.3390/polym14193966.

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Original work showed the composition of the dyes and the antimicrobial/UV protective properties of a series of dyes obtained in our laboratories over the past twelve years in an easy way using microwave technology and their comparisons with conventional methods. The results we obtained clearly indicated that by using the microwave strategy, we were able to synthesize the new disperse dyes in minutes and with a much higher productivity when compared to the traditional methods, which took a much longer time, sometimes up to hours. We also introduced ultrasonic technology in dyeing polyester fabr

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Seemork, K., J. Setthayanond, P. Suwanruji, and P. Tooptompong. "Optimization of Salt-Free Reactive Dyeing Process for Cotton with Coconut Oil/Water Dual-Phase Dyeing System." Asian Journal of Chemistry 33, no. 9 (2021): 2099–104. http://dx.doi.org/10.14233/ajchem.2021.23300.

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In this study, the coconut oil/water dual-phase dyeing system for developing salt-free reactive dyeing process for cotton was established. The selected dyes in this work were hot-dyeing reactive dyes, including C.I. Reactive Red 243, C.I. Reactive Blue 214 and C.I. Reactive Orange 70. A dual-phase dyeing system was performed under various coconut oil to water ratios and a comparative study was conducted on the conventional aqueous-based reactive dyeing in the presence and absence of salt. The results showed that the oil to water ratio of 3:1 imparted the highest colour yields (K/S values) and

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Dixit, Bharat, Hitendra Patel, Ritu Dixit, and Dhirubhai Desai. "Synthesis, characterization and dyeing assessment of novel acid azo dyes and mordent acid azo dyes based on 2- hydroxy-4-methoxybenzophenone on wool and silk fabrics." Journal of the Serbian Chemical Society 75, no. 5 (2010): 605–14. http://dx.doi.org/10.2298/jsc090704039d.

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Novel acid mono azo and mordent acid mono azo dyes were synthesis by the coupling of diazonium salt solution of different aromatic amines with 2-hydroxy-4-methoxybenzophenone. The resulting dyes were characterized by spectral techniques, i.e., elemental analysis, IR, 1H-NMR and UV-visible spectroscopy. The dyeing performance of all the dyes was evaluated on wool and silk fabrics. The dyeing of chrome pre-treated wool and silk fabrics showed better hues on mordented fabrics. Dyeing of wool and silk fabrics resulted in pinkish blue to red shades with very good depth and levelness. The dyed fabri

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Tian, Guangguo, Rongrong Cui, Xiaorui Hu, and Yan Feng. "Antibacterial Property of Cotton Fabric Dyed with Vaccinium bracteatum Thunb. Leaves." AATCC Journal of Research 8, no. 2_suppl (December 2021): 28–33. http://dx.doi.org/10.14504/ajr.8.s2.6.

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Vaccinium bracteatum Thumb. leaves have a variety of nutritional values and physiological functions, and are rich in useful resources. In this study, these leaves were used as a raw material to make vegetable dyes. Cotton fabric was then dyed with them by the direct staining method. Good dyeing effects and antibacterial properties of the resulting fabrics could be obtained using an optimized dyeing process. The antibacterial properties of the fabric were directly proportional to the dye uptake ( K/S value) of the fabric. To improve dyeing, mordant and chitosan were used separately to pretreat

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Qiu, Jingsi, and Yue Liu. "Preparation of Ultrafine Disperse Dyes Based on the Efficiency Balance of Grinding and Dyeing." Journal of Chemistry 2022 (November 18, 2022): 1–7. http://dx.doi.org/10.1155/2022/8254447.

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As dispersive dyes are nonionic dyes, the particle size and particle-size distribution will significantly affect the dyeing performance. In this study, the grinding conditions, the granularity of disperse dye, and the dyeing performance were combined to study their connection further and to get better grinding process parameters for monoazo-structure disperse dyes. Through experimental research on three factors, namely, grinding time, size of grinding media, and mass ratio of grinding media to dyes, the preferred results are as follows, which could be selected based on different grinding purpo

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Shams Nateri, A., E. Dehnavi, A. Hajipour, and E. Ekrami. "Dyeing of polyamide fibre with cochineal natural dye." Pigment & Resin Technology 45, no. 4 (July 4, 2016): 252–58. http://dx.doi.org/10.1108/prt-05-2015-0043.

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Purpose The aim of the paper was to study the effects of mordanting methods on the absorption behaviour of cochineal natural dye on polyamide fibres. Design/methodology/approach Iron sulphate and aluminium potassium sulphate salts were used as mordanting agents, and bottom mordanting, meta-mordanting and after mordanting methods were applied in the dyeing of polyamide samples with the cochineal natural dye. Colourimetric evaluations were carried out, and the principal component analysis was used to investigate the spectrophotometric properties of the dyed samples. Fastness properties of the dy

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Zeeshan Akhtar, Zeeshan Akhtar, Syed Imran Ali Syed Imran Ali, Syed Rizwan Ali Syed Rizwan Ali, Sadia Khan Sadia Khan, Feroz Alam Feroz Alam, and Naseem Abbas and Muhammad Yasir Khan Naseem Abbas and Muhammad Yasir Khan. "Synthesis, Characterization and Dyeing Assessment of Novel Acid Dyes on Wool Fabric IV." Journal of the chemical society of pakistan 41, no. 4 (2019): 633. http://dx.doi.org/10.52568/000766/jcsp/41.04.2019.

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We report synthesis and performance evaluation of a series of novel acid dyes based on diazotized substituted aryl amines and employing substituted naphthalene sulfonic acids as coupling component. The synthesized dyes were thoroughly characterized using UV-visible, IR, 1HNMR spectroscopy, elemental analysis and negative MALDI-TOF mass spectrometric analysis. The effectiveness of these dyes was evaluated by applying them on wool fabric using a standard exhaust dyeing procedure. The results for washing, light, perspiration and rubbing fastness of the dyed fabric demonstrate excellent fixation,

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Zhao, Canxing, Rui Shi, Shouchun Li, Penghui Li, Xiaoxue Zhang, and Guolin Tong. "Synthesis and Properties of Novel Reactive Dyes Comprising Acyl Fluoride Group on Cotton Fabrics." Molecules 27, no. 13 (June 28, 2022): 4147. http://dx.doi.org/10.3390/molecules27134147.

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Novel reactive dyes with mono- and bi-acyl fluoride reactive groups have been designed and synthesized, which are obtained by using 2-amino-8-naphthol-6-sulfonic acid or 1-amino-8-naphthol-3,6-disulfonicacid as the coupling component and 4-aminobenzoyl fluoride (PABF) as the diazo component. Their structures have been defined by nuclear magnetic resonance spectroscopy and ultraviolet–visible spectra (UV—Vis). The novel reactive dyes were evaluated on cotton by using the exhaust dyeing method. The properties were examined in detail, and the results showed that the dye concentration of 4% (o.w.f

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Gaffer, Hatem E., and Ismail I. Althagafi. "Synthesis of new azobenzene dyes clubbed with thiazolidinone moiety and their applications." Pigment & Resin Technology 49, no. 3 (February 24, 2020): 207–14. http://dx.doi.org/10.1108/prt-02-2019-0022.

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Purpose The purpose of this paper is to synthesize some new azobenzene dyestuffs clubbed with thiazolidinone moiety and their solicitation in dyeing polyester fabrics representing their antibacterial evaluation. Design/methodology/approach Herein, the authors report the synthesis of new thiazolidinone moiety after the coupling of diazotized 4-aminoacetophenone with resorcinol. The newly synthesized dyes were characterized by IR, elemental analysis, mass spectroscopy and proton nuclear magnetic resonance (1H NMR) spectral studies. The characteristics of dyeing of these dyestuffs were evaluated

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Nakpathom, Monthon, Buppha Somboon, Nootsara Narumol, and Rattanaphol Mongkholrattanasit. "High temperature dyeing of PET fabric with natural colourants extracted from annatto seeds." Pigment & Resin Technology 48, no. 2 (February 21, 2019): 129–36. http://dx.doi.org/10.1108/prt-04-2018-0035.

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Purpose The purpose of this study is to investigate the possibility of dyeing polyester (PET) fabric with natural dye extracted from annatto seeds using high temperature dyeing method. Design/methodology/approach PET fabric was dyed with annatto extract by varying dyeing parameters (temperature, time, pH and dye concentration) to determine the optimum dyeing conditions. The influences of KAl(SO4)2, FeSO4, gallnut mordants or a commercial UV absorber on colour yield and fastness properties were further studied. Findings Optimum results were obtained when the fabric was dyed at 130°C for 30 min

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Maradiya, Hari, and Vithal Patel. "Synthesis of monoazo disperse dyes based on 2-aminoheterocycles and their dyeing performance on nylon fabrics." Journal of the Serbian Chemical Society 65, no. 11 (2000): 773–80. http://dx.doi.org/10.2298/jsc0011773m.

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Novel monoazo disperse dyes based on various 2-aminoheterocycles were prepared using N-methyl-N-(2-hydroxyethyl)aniline as the coupling component. All the dyes were applied as disperse dyes on nylon fabric. These dyes have been found to give a wide range of colour shades with very good depth, brightness and levelness on nylon fabric. The visible absorption spectra, elemental analysis and Rf values were investigated. The percentage dye bath exhaustion on fabric was found to be very good. The dyed fabric showed very good to excellent fastness to light, washing, rubbing and perspiration. The subl

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Smelcerovic, Miodrag, Dragan Djordjevic, and Mile Novakovic. "Textile dyeing by dyestuffs of natural origin." Chemical Industry 60, no. 5-6 (2006): 120–28. http://dx.doi.org/10.2298/hemind0606120s.

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The textile industry is one of the biggest industrial consumers of water especially dye houses which utilize synthetic dyes and other chemicals. Natural dyes are generally environmental friendly and have many advantages over synthetic dyes with respect to production and application. In recent years, there has been an interest in the application of these dyes due to their bio-degradability and higher compatibility with the environment. A review of previous work in the field of applying dyestuffs of natural source as possible textile dyes is given. From an ecological viewpoint, the substitution

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Cui, Hongyan, Wenjing Xie, Zhongjie Hua, Lihua Cao, Ziyi Xiong, Ying Tang, and Zhiqin Yuan. "Recent Advancements in Natural Plant Colorants Used for Hair Dye Applications: A Review." Molecules 27, no. 22 (November 20, 2022): 8062. http://dx.doi.org/10.3390/molecules27228062.

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There is an on-going demand in recent years for safer and “greener” hair coloring agents with the global consumer awareness of the adverse effects of synthetic hair dyes. The belief in sustainability and health benefits has focused the attention of the scientific community towards natural colorants that serve to replace their synthetic toxic counterparts. This review article encompasses the historical applications of a vast array of natural plant hair dyes and summarizes the possible coloration mechanisms (direct dyeing and mordant dyeing). Current information on phytochemicals (quinones, tann

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Haji, Aminoddin. "Plasma activation and chitosan attachment on cotton and wool for improvement of dyeability and fastness properties." Pigment & Resin Technology 49, no. 6 (April 29, 2020): 483–89. http://dx.doi.org/10.1108/prt-02-2020-0017.

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Purpose The dyeing of cellulosic and proteinous fibers with natural and synthetic colorants usually needs large amounts of metal salts to promote the dyeing procedure. To get rid of the necessity to use metal salts, plasma treatment and subsequent attachment of chitosan biopolymer were considered as green processes for surface functionalization of wool and cotton. The purpose of this paper is to investigate the effect of oxygen plasma treatment and attachment of chitosan on the dyeability of wool and cotton fabrics using walnut and weld as model natural dyes, as well as C.I. reactive blue 50 a

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Vankar, Padma S., Dhara Shukla, Samudrika Wijayapala, and Asish Kumar Samanta. "Innovative silk dyeing using enzyme and Rubia cordifolia extract at room temperature." Pigment & Resin Technology 46, no. 4 (July 3, 2017): 296–302. http://dx.doi.org/10.1108/prt-06-2016-0065.

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Purpose Natural dyes are mostly used for dyeing of natural fibre textiles to improve their eco-friendly features. For successful commercial use of natural dyes, the appropriate and standardized dyeing techniques need to be adopted. Appropriate scientific techniques or procedures need to be derived from scientific studies on dyeing methods, dyeing process variables, dyeing kinetics and compatibility of selective natural dyes with minimal use of hazardous chemicals. Design/methodology/approach In the present study, different enzymes (protease, amylase, xylanase, pectinase, phytase) were used eff

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Li, Bing, Yongchun Dong, Zhizhong Ding, Yiming Xu, and Chi Zou. "Renovation and Reuse of Reactive Dyeing Effluent by a Novel Heterogeneous Fenton System Based on Metal Modified PTFE Fibrous Catalyst/H2O2." International Journal of Photoenergy 2013 (2013): 1–10. http://dx.doi.org/10.1155/2013/169493.

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Cu-Fe bimetallic grafted polytetrafluoroethylene (PTFE) fiber complexes were prepared and optimized as the novel heterogeneous Fenton catalysts for the degradation of reactive dyes under UV irradiation. Cotton fabrics were dyed with three reactive dyes, namely, Reactive Red 195, Reactive Yellow 145, and Reactive Blue 222, in tap fresh water using exhaustion process. The spent dyeing effluents were then collected and degraded with the optimized Cu-Fe bimetallic grafted PTFE fiber complex/H2O2system. The treated dyeing effluents were characterized and reused for the dyeing of cotton fabrics thro

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Ahmed, Hoda A., Mohamed A. El-Atawy, Fowzia S. Alamro, Nada S. Al-Kadhi, Omaima A. Alhaddad, and Alaa Z. Omar. "Mesomorphic, Computational Investigations and Dyeing Applications of Laterally Substituted Dyes." Molecules 27, no. 24 (December 16, 2022): 8980. http://dx.doi.org/10.3390/molecules27248980.

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Two groups of laterally substituted non-mesomorphic and liquid crystalline materials bearing monoazo group were prepared and investigated via experimental and theoretical techniques. The molecular structures of the designed dyes were evaluated by FT-IR and NMR spectroscopic analyses. Mesomorphic examinations for all synthesized dyes were investigated by polarized optical microscopy (POM) and differential scanning calorimetry (DSC). Results revealed that, the thermal and optical properties of investigated compounds are mainly dependent on their molecular geometry. The optimized geometries of th

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Patel, Vijay, Manish P. Patel, and Ranjan Patel. "Disperse dyes based on 2-methyl-3-[3’-amino-phthalimido]-4(3H)-quinazilinone." Journal of the Serbian Chemical Society 67, no. 11 (2002): 719–26. http://dx.doi.org/10.2298/jsc0211719p.

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A series of new heterocyclic disperse dyes has been prepared by subsequent diazotization of 2-methyl-3-[3?-aminophthalimido]-4(3H)-quinazolinone and coupling with various mono- and di-N-substituted derivatives of aniline. All the disperse dyes were characterized by their percentage yield, melting point, UV-visible spectrum, elemental analysis, infrared spectrum and dyeing performance on nylon 66 and polyester fibres. The percentage dye bath exhaustion on different fibres was found to be reasonably good and acceptable. The dyed fibres showed fair to fairly good to good fastness to light and ver

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Patel, Vijay, Manish Patel, and Ranjan Patel. "Synthesis and application of novel heterocyclic dyes based on 11-amino-13H-acenaphtho[1,2-e]pyridazino[3,2-b]-quinazoline-13-one." Journal of the Serbian Chemical Society 67, no. 11 (2002): 727–34. http://dx.doi.org/10.2298/jsc0211727p.

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A new fused heterocyclic compound, 11-amino-13H-acenaphtho[1,2-e]pyridazino [3,2-b]quinazolin-13-one was synthesized and used to prepare a novel series of heterocyclic mono azo dyes by coupling with various naphthols. All the mono azo dyes were characterized by their melting point, elemental analysis, UV-visible spectrum, infrared spectrum and dyeing performance on nylon and polyester fibres. The percentage dye bath exhaustion on different fibres was found to be reasonably good and acceptable. The dyed fibres show fair to good fastness to light and very good to excellent fastness to washing, r

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S. Abdullahi, S., H. Musa, S. Habibu, A. H. Birniwa, and R. E. A. Mohammad. "Facile synthesis and dyeing performance of some disperse monomeric and polymeric dyes on nylon and polyester fabrics." Bulletin of the Chemical Society of Ethiopia 35, no. 3 (January 31, 2022): 485–97. http://dx.doi.org/10.4314/bcse.v35i3.2.

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ABSTRACT. Monoazo disperse polymeric dyes consisting of polyarylazocarboxybenzene-formaldehyde (PACB-F) and polyarylazohydroxynaphthalene-formaldehyde (PAHN-F) were synthesized through diazotisation, coupling and polycondensation reactions in the presence of formaldehyde and aqueous oxalic acid. The structure of the as synthesised dyes was acquired using UV-visible absorption maxima and FT-IR spectroscopy and their color, yield, melting point, solubility, and viscosity determined via standard methods. UV-visible and FTIR results showed successful formation of the polymeric dyes due to shift of

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Uddin, Md Koushic, Mustafizur Rahman, Shuva Bhattacharjee, Susmita Singh, and Shanjid Khan Mojlish. "Dyeing of Cotton Knit Fabric with Natural Dyes Extracted from Java Plum." AATCC Journal of Research 8, no. 6 (November 2021): 41–46. http://dx.doi.org/10.14504/ajr.8.6.5.

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Natural dyes extracted from natural sources are likely to be less harmful and more eco-friendly than synthetic dyes. In this study, cotton fabric was dyed with natural dyes extracted from Java plum fruit ( Syzygium cumini). Dyeing was accomplished with or without mordanting agents using simultaneous and post-mordanting methods. The color of the treated substrates was investigated in terms K/S and CIELAB values. In addition, the attenuation co-efficient and solubility in organic solvents of the extracted dyes were determined. The wash and rubbing fastness of the dyed fabrics were good to excell

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Shams-Nateri, A., E. Dehnavi, and E. Zahedi. "PCA-spectroscopy study of common salt effect on solubility of direct dye." Pigment & Resin Technology 46, no. 5 (September 4, 2017): 362–70. http://dx.doi.org/10.1108/prt-11-2015-0108.

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Purpose This work aims to explain the effect of common salt on absorbance spectra and solubility of textile direct dyes, which is important in analysing and reusing wastewater of dyeing process. Design/methodology/approach Several textile dyes such as Direct red 243, Direct yellow 86 and Direct blue 201 solutions with and without NaCl salt were used to study the effect of common salt on solubility of textile direct dyes. Several methods such as derivative spectrophotometry, principal component analysis and colorimetric techniques were used to analyse the absorbance spectra of dye solution. Fin

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Omeroglu, Sunay, Behcet Becerir, and Esra Karaca. "Dyeing and Some Fastness Properties of Novel Perlite-Containing Polyester Woven Fabrics." AATCC Journal of Research 9, no. 2 (March 2022): 81–89. http://dx.doi.org/10.1177/24723444221081456.

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This article is focused on the comparison of dyeing, and washing and light fastness properties of conventional and novel perlite-containing polyester woven fabrics via color measurements. All the production processes for the regular and perlite-containing polyester filament yarns were the same. The fabrics were dyed with three medium level energy disperse dyes of different hues in order to observe the shade change caused by the intrinsic yellowness of the perlite-containing fabric. Dyeing and fastness properties of the dyed fabrics were evaluated by their corresponding lightness (L*), chroma (

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Botteri, Lea, Anja Miljković, and Martinia Ira Glogar. "Influence of Cotton Pre-Treatment on Dyeing with Onion and Pomegranate Peel Extracts." Molecules 27, no. 14 (July 16, 2022): 4547. http://dx.doi.org/10.3390/molecules27144547.

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In this paper the possibility of applying natural dyes on cellulose fibres were researched with respect to the impact of cotton material pre-treatment (scouring, chemical bleaching, mercerization and mordanting), using renewable sources of natural dyes (waste as a source). As mordants, metal salts of copper, aluminium and ferrum were used, and the influence on colour change as well as on fastness properties were analysed. The natural dyes were extracted from onion peel (Allium cepa L.) and pomegranate peel (Punica granatum L.). In spectrophotometric analysis performed of the plant extracts, th

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