Utilizing Semi-Natural Antibacterial Cellulose to Prepare Safe Azo Disperse Dyes and Their Application in Textile Printing

Nawwar, Galal A. M.; Zaher, Khlood S. Abdel; Shaban, Elkhabiry; El‐Ebiary, Nora M. A.

doi:10.1007/s12221-020-9083-9

Cited by 21 publications

(13 citation statements)

References 30 publications

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“…Rice straw is a lignocellulosic material which, upon being pulped, is reported to produce a black liquor rich in lignin, silica, fatty acids and other bioactive components (Abdel Zaher et al, 2014;Nawwar et al, 2016;Nawwar et al, 2020). Continuing our work towards waste valorization (Abdel Zaher et al, 2019;Ibrahim et al, 2016;Allam et al, 2000;Fahim et al, 2014;Nawwar and Shafik, 1995), including utilization of calcium and zinc lignates as good antioxidants for rubber composites, we sought in this study to evaluate the antioxidant activity of their copper counterpart (Cu-LSF complex) with evaluating its electrical conductivity in rubber composites.…”

Section: Introductionmentioning

confidence: 99%

A copper-(lignin/silica/fatty acids) complex as an antioxidant/electrical conductivity agent for rubber composites (Part iii)

Othman

El‐Hashash

El‐Sabbagh

et al. 2021

PRT

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Purpose Calcium and Zinc lignates were proven to be good antioxidants for rubber composites. The purpose of this paper is to evaluate the copper lignate antioxidant activity along with evaluating its electrical conductivity in rubber composites. Design/methodology/approach The antioxidant activity of the Cu-LSF complex was compared with that of standard commercial antioxidant additives as a green alternative. The rheological characteristics, thermal aging and mechanical and electrical properties were evaluated for the NBR vulcanizates containing the different antioxidants in the presence or absence of coupling agents. Findings Results revealed that the Cu-LSF complex (5 phr) can function as a compatibilizing, antioxidant and electrical conductivity agent. Originality/value The new copper complex prepared from paper-pulping black liquor of wastes could be used as a green antioxidant and electrical conductivity agent in rubber composites.

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Section: Introductionmentioning

confidence: 99%

A copper-(lignin/silica/fatty acids) complex as an antioxidant/electrical conductivity agent for rubber composites (Part iii)

Othman

El‐Hashash

El‐Sabbagh

et al. 2021

PRT

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“…The most significant category of synthetic colorants, which includes pigments and azo dyes, is the largest group of synthetic colorants utilized in a variety of applications [17] . Due to their exceptional colour brightness, they are the foundation of colour for textile products, accounting for at least 66 % of all colorants [18] . They also have stronger chromophoric and tinctorial strength, as well as a wide colour spectrum and good sublimation fastness.…”

Section: Introductionmentioning

confidence: 99%

“…[17] Due to their exceptional colour brightness, they are the foundation of colour for textile products, accounting for at least 66 % of all colorants. [18] They also have stronger chromophoric and tinctorial strength, as well as a wide colour spectrum and good sublimation fastness. By altering the functional groups integrated into the azo molecule, different colours can be obtained.…”

Section: Introductionmentioning

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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“…For example, the disperse dye with two urethane groups in the molecule has great colorfastness to washing and sublimation [8]. Of course, changing the structure can also make the disperse dyes functional, such as disperse dyes with a coupling component of a novel cyanoacetyl microcrystalline cellulose derivative [9]. Its dyed or printed fabrics have high antibacterial efects and colorfastness.…”

Section: Introductionmentioning

confidence: 99%

Preparation of Ultrafine Disperse Dyes Based on the Efficiency Balance of Grinding and Dyeing

Qiu

Liu

2022

Journal of Chemistry

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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 purposes in detail. The grinding media group is Φ1 mm/Φ0.1 mm (1 : 1 mass ratio) or Φ3 mm/Φ1 mm (1 : 1 mass ratio), the mass ratio of grinding media to dyes is 5 : 1 or 10 : 1, and the grinding time range is 2–5 h. These parameters can make the overall work of coarse dyes’ grinding and dyeing more efficient, avoiding the waste of cost and the increase in workload.

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Utilizing Semi-Natural Antibacterial Cellulose to Prepare Safe Azo Disperse Dyes and Their Application in Textile Printing

Cited by 21 publications

References 30 publications

A copper-(lignin/silica/fatty acids) complex as an antioxidant/electrical conductivity agent for rubber composites (Part iii)

A copper-(lignin/silica/fatty acids) complex as an antioxidant/electrical conductivity agent for rubber composites (Part iii)

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

Preparation of Ultrafine Disperse Dyes Based on the Efficiency Balance of Grinding and Dyeing

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