Application of Sulphatoethylsulphone Reactive-Disperse Dye on PLA and Cotton Fabrics

The current research investigated the dyeing properties on cotton and PLA fabrics of the sulphatoethylsulphone reactive-disperse dye synthesized from coupling reaction between aminophenyl-4-(β-sulphatoethylsulphone) diazonium salt and N,N-diethyl-m-toluidine, a preliminary study aiming to develop the dye for one-bath dyeing for PLA/cotton blended fabric. From the study, the optimum dyeing condition of the synthesized dye on PLA fabric was at pH 6 and 110°C. The synthesized dye performed very well on PLA rather than cotton. The dyed PLA fabric also displayed excellent color fastnesses to washing and crocking. A study on cotton dyeing gave the information that the dyeing ability of the dye was enhanced by increasing dyeing temperature and the amounts of added salt and alkali. The dyed cotton fabric exhibited a moderate to good color fastnesses to washing and crocking. A nearly similar shade obtained on PLA and cotton encourages a dyeing process development for PLA/cotton blended fabric.

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Development of Dyeing Process for Sulphatoethylsulphone Reactive-Disperse Dye on Natural and Synthetic Fibers

Materials Science Forum ◽

10.4028/www.scientific.net/msf.1005.116 ◽

2020 ◽

Vol 1005 ◽

pp. 116-122

Author(s):

Juthapak Pukngam ◽

Porntip Tooptompong ◽

Jantip Setthayanond ◽

Pimonrat Hansakulwat

Keyword(s):

Coupling Agent ◽

Diazonium Salt ◽

Coupling Reaction ◽

Disperse Dye ◽

Color Fastness ◽

Synthetic Fibers ◽

Dyeing Process ◽

Pet Fibers ◽

Excellent Color ◽

Natural And Synthetic

Sulphatoethylsulphone reactive-disperse dye was synthesized via diazotization reaction of aminophenyl-4-(β-sulphatoethylsulphone) followed by coupling reaction of the diazonium salt with phenol as a coupling agent. The synthesized dye was well dyeable on both natural and synthetic fibers with providing orange shade on cotton, silk and nylon, while the dyed PLA and PET fibers appeared in yellow shade. The dyeing conditions for cotton and silk could be conducted using 60 g/l Na2SO4 and 20 g/l Na2CO3 at 60°C for 90 minutes whereas dyeing on PLA and PET fibers was optimally done at 110°C for 30 and 45 minutes for PLA and PET, respectively. In case of nylon, it could be dyed at 100°C for 15 minutes. The synthesized reactive-disperse dye could well dye on these 5 fibers with excellent color fastness to washing.

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A novel functional disperse dye doped with graphene oxide for improving antistatic properties of polyester fabric using one-bath dyeing method

Textile Research Journal ◽

10.1177/0040517519877464 ◽

2019 ◽

Vol 90 (5-6) ◽

pp. 655-665 ◽

Cited By ~ 2

Author(s):

Lihua Fan ◽

Yongsong Tan ◽

Jeremiah Amesimeku ◽

Yunjie Yin ◽

Chaoxia Wang

Keyword(s):

Graphene Oxide ◽

Polyester Fabric ◽

Disperse Dye ◽

Reduction Time ◽

Dyeing Process ◽

Functional Dyes ◽

One Bath Dyeing ◽

Dyeing Method ◽

Dyed Fabric ◽

Microscopic Morphology

A novel functional disperse dye doped with graphene oxide for antistatic properties of polyester fabric was achieved, which means that the dyeing and antistatic finishing can be simultaneously obtained by a one-bath method. Functional dyes were used to dye polyester fabric by a high-temperature, high-pressure dyeing method. The surface microscopic morphology of the dyed polyester fabric, and the dispersion properties of the disperse dye, graphene oxide, and the functional disperse dye, were characterized by scanning electron microscopy. The effects of the dyeing temperature on the particle sizes of three dyeing liquors were explored; this revealed that the temperature of the dyeing process had no effect on particle size. The dosage and reduction time of graphene oxide were investigated. The surface electrical resistance of the dyed fabric, 9.8 × 106 Ω, obtained at a condition of 2% (o.m.f) graphene oxide with a reduction time of 30 min, achieved A-grade antistatic standard. Furthermore, the rubbing and washing fastness of the treated fabric were 4- and 4 ∼ 5 grades, respectively. This preparation of the functional disperse dye provides a possibility in one-bath dyeing and antistatic finishing of polyester fabric.

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4-Methylene-1,2,3-benzotriazines

Canadian Journal of Chemistry ◽

10.1139/v75-537 ◽

1975 ◽

Vol 53 (24) ◽

pp. 3714-3719 ◽

Cited By ~ 10

Author(s):

Handrick Fong ◽

Keith Vaughan

Keyword(s):

Diazonium Salt ◽

Coupling Reaction ◽

Aliphatic Amines ◽

Neutral Alumina ◽

Preliminary Study ◽

Primary Aliphatic Amines

Diazotization of 2′-aminoacetophenone, followed by coupling with primary aliphatic amines, affords unstable triazenes which readily undergo cyclodehydration over neutral alumina to give 3-alkyl-4-methylene-1,2,3-benzotriazines (5a-d). 3-Aryl-4-methylene-1,2,3-benzotriazines (8a-c) are likewise obtained by cyclodehydration of the stable 1-(ortho-acetylphenyl)-3-aryltriazenes (7a-c). Attempted synthesis of the unsubstituted 4-methylene-1,2,3-benzotriazine (5e), by the same method, did not succeed. 4-Hydroxy-1,2,3-benzotriazines (4) are postulated as intermediates in the cyclodehydration; this hypothesis is supported by the isolation of the stable 4-hydroxy-1,2,3-benzotriazine (12) from the coupling reaction of methylamine with the diazonium salt derived from ortho-aminobenzophenone. An account of a preliminary study of the thermolysis of 3-methyl-4-methylene-1,2,3-benzotriazine (5a) is included.

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Investigation of Cotton Dyeing with Enzyme-Oxygen-Pretreatment/Reactive Dyes in one-Bath

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.233-235.903 ◽

2011 ◽

Vol 233-235 ◽

pp. 903-908

Author(s):

Jun Hua Wang ◽

Jian Feng Di ◽

Yong Tang Jia

Keyword(s):

High Efficiency ◽

Reactive Dyes ◽

Cotton Fabrics ◽

Optimum Conditions ◽

Dyeing Process ◽

Low Energy Consumption ◽

One Bath Dyeing ◽

The One ◽

Red Dye ◽

Short Time

Desizing-scouring-bleaching-dyeing of cotton fabrics in one-bath was discussed in this paper. The appropriate reactive dyes, refined enzyme and H2O2 elimination agent and dyeing technology parameters were selected preciously and the optimum conditions were obtained: H2O2 (30%) 4 g/L, refined enzyme 2 g/L, Na2SiO3 2g/L, Peregal O 1 g/L, bath ratio 1:20, scoring and bleaching at 95°C for 45min. Then, adding sulfourea 12g/L, controlling pH 7, adding reactive red dye 3BS 3% in raffinate, dyeing at 35°C for 30min and fixing at 70°C for 30 min. Compared the one-bath process with the traditional one, the former can get similar performance on dyeing. In addition, the former shows such advantages as short time, high efficiency, low energy consumption and reduced sewage emission. “One-bath” dyeing process is a promising approach to replace the old one.

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Antibacterial evaluation of cotton fabrics by using novel sulfonamide reactive dyes

Pigment & Resin Technology ◽

10.1108/prt-08-2015-0080 ◽

2017 ◽

Vol 46 (3) ◽

pp. 210-217 ◽

Cited By ~ 11

Author(s):

Hatem E. Gaffer ◽

Mohamed R. Elgohary ◽

Hassan Ali Etman ◽

Saad Shaaban

Keyword(s):

Diazonium Salt ◽

Reactive Dyes ◽

Coupling Reaction ◽

Antimicrobial Activities ◽

Cotton Fabrics ◽

Proton Nuclear Magnetic Resonance ◽

Fastness Properties ◽

Light Fastness ◽

Content Type ◽

Cellulose Fabrics

Purpose The purpose of this paper was to synthesize novel antibacterial reactive dyes for dyeing cotton fabrics. Design/methodology/approach Four synthetic novel antibacterial reactive dyes based on sulfonamide (D1-D4) have been synthesized by the coupling reaction of sulfonamide diazonium salt with sulfonamido-cyanurated 7-amino-4-hydroxynaphthalene-2-sulfonic acid “j-acid”. The chemical structure of the synthesized dyes was secured by their spectral data [infra red (IR) and proton Nuclear magnetic Resonance (1HNMR)]. Findings The prepared reactive dyes (D1-D4) were applied to cotton fabrics. Optimum conditions of the dying samples at sodium sulfate 100 g/l, liquor ratio (L.R.) 1:10, sodium carbonate 20 g/l at 80°C (D1, D2 and D4), 60°C (D3 for 60 min) were investigated. The fastness properties toward washing, perspiration, rubbing and light were evaluated. Dyed fabrics showed good light fastness property and good to very good washing and perspiration fastness properties according to the gray scale. Antimicrobial activities for synthesized dyes showed excellent activity against gram-negative organisms such as Pseudomonas aeruginosa and Proteus mirabilis faecalis, whereas very good activity against gram-positive organisms such as Staphylococcus aureus and Enterococcus faecalis with respect to the standard drugs ampicillin and chloramphenicol. Originality/value The principle advantages in this study were that the synthesis of novel synthesized dyes by introducing bisulfonamide-based moieties to increase the antimicrobial activity of the cellulose fabrics could be used as a medical textile, short reaction time and reaction procedure conducted in few steps, the work up is convenient and thus the starting material can be easily prepared.

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Impact of Chemical Modification on the Physical and Mechanical Properties of Tropical Wood Material

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.576.314 ◽

2012 ◽

Vol 576 ◽

pp. 314-317

Author(s):

Sinin Hamdan ◽

M. Saiful Islam

Keyword(s):

Mechanical Properties ◽

Diazonium Salt ◽

Treated Wood ◽

Coupling Reaction ◽

Physical And Mechanical Properties ◽

Modulus Of Rupture ◽

Ft Ir ◽

Ir Analysis ◽

D Values ◽

Benzene Diazonium

Five types of selected tropical light hardwoods were chemically modified with benzene diazonium salt to improve their physical and mechanical properties. Benzene diazonium salt underwent a coupling reaction with wood which was confirmed through FT-IR analysis. The compressive modulus of the treated wood increased, whereas modulus of rupture was shown to decrease on treatment. The modified wood samples had higher hardness (Shore D) values compared to that of the control ones.

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Cryptand-Functionalized Highly Oriented Pyrolytic Graphite Electrodes

Sustainability ◽

10.3390/su13084158 ◽

2021 ◽

Vol 13 (8) ◽

pp. 4158

Author(s):

Marcos A. Bento ◽

Sara Realista ◽

Ana S. Viana ◽

Ana M. Ferraria ◽

Paulo N. Martinho

Keyword(s):

Photoelectron Spectroscopy ◽

Diazonium Salt ◽

Pyrolytic Graphite ◽

Coupling Reaction ◽

Modified Electrodes ◽

Current Response ◽

Highly Oriented Pyrolytic Graphite ◽

Graphite Electrodes ◽

Pyrolytic Graphite Electrode ◽

20 Nm

Reproducible materials that have detection properties towards a certain molecule are very important for applications in the fabrication of devices. Among all the substrates that are used, highly oriented pyrolytic graphite allows to clearly image a monolayer. On the other hand, cryptand molecules are versatile because they can sense certain analytes with high selectivity. The highly oriented pyrolytic graphite electrode was first functionalized with an aryl bearing a bromine or an alkyne group to further attach cryptand molecules to its surface. The functionalization was performed through the electroreduction of aryl diazonium salts. While functionalization with an aryl-bromine produced a 20 nm-thick dendritic layer, functionalization of the surface with an aryl bearing a terminal alkyne produced a 9.7 nm-thick multilayer. However, if the diazonium salt is prepared in situ, a 0.9 nm monolayer with aryl–alkyne groups is formed. The alkyne functionalized electrode reacted with a bromo-cryptand through a Sonogashira C–C coupling reaction yielding electrodes functionalized with cryptands. These were immersed in a solution of a Co(II) salt resulting in Co(II)-cryptate modified electrodes, highlighting the ability of the cryptands’ modified electrode to sense metal ions. The electrode surface was analyzed by X-ray photoelectron spectroscopy after each modification step, which confirmed the successful functionalization of the substrate with both the cryptand and the cryptate. Cyclic voltammetry studies showed stable current response after approximately six cycles. Different reduction processes were detected for both cryptand (−1.40 V vs. SCE) and cryptate (−1.22 V vs. SCE) modified highly oriented pyrolytic graphite.

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Synthesis and Biological Effectiveness of Some new Azo Compounds as Derivatives of Nitrogen Bases

Baghdad Science Journal ◽

10.21123/bsj.13.2.368-375 ◽

2016 ◽

Vol 13 (2) ◽

pp. 368-375

Author(s):

Baghdad Science Journal

Keyword(s):

Diazonium Salt ◽

Coupling Reaction ◽

Hemoglobin Concentration ◽

Antimicrobial Activities ◽

Uv Spectra ◽

Azo Compounds ◽

Nitrogen Bases ◽

Antibacterial And Antifungal Activities ◽

Physiological Tests

In this study the new azo compounds (3compounds) for nitrogen bases (Adenine and Cytosine) are synthesized through two reaction steps (formation of diazonium salt and coupling reaction). The compounds have been characterized by FTIR, melting point, and ultra-violate (UV) spectra. All synthesized compounds have been estimated in vitro for their antimicrobial activities against two species of bacteria(E.coli, S.aureus)and one kind of fungi ( Aspergillus flavus) .The results show that these compounds have very good antibacterial and antifungal activities especially compounds 1 and 3.To study the effect of these compounds were making some physiological tests on rats are made ,the results of hematological study showed decreasing level of total hemoglobin concentration in all treatment groups specially in group (1).The values of Packed in cell volume (P.C.V) are within normal blood range of rats . Total leucocytes count (W.B.C) decrease in all groups.

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Monoazo (Monohydrazone) pigments based on acetoacetanilides

Physical Sciences Reviews ◽

10.1515/psr-2020-0185 ◽

2021 ◽

Vol 0 (0) ◽

Author(s):

Robert Christie ◽

Adrian Abel

Keyword(s):

Tautomeric Form ◽

Diazonium Salt ◽

Coupling Reaction ◽

Intramolecular Hydrogen Bonding ◽

Molecular Structures ◽

Moderate Intensity ◽

Weak Intermolecular Interactions ◽

Printing Inks ◽

Stage Process ◽

Intramolecular Hydrogen

Abstract The monoazoacetoacetanilide series of pigments, traditionally known as Hansa Yellows, are long-established products that entered the market in the early twentieth century. They are mostly inexpensive products offering bright colors of moderate intensity covering the entire yellow area of the spectrum, good lightfastness, but inferior solvent resistance. The technical properties of the pigments may be explained by their molecular structures, which adopt the ketohydrazone tautomeric form, and their crystal structures. Their good lightfastness is attributed mainly to intramolecular hydrogen-bonding, while their generally inferior fastness to organic solvents is explained by the relatively weak intermolecular interactions in the crystal structure. The monoazoacetanilide pigments are synthesized by the traditional two-stage process of diazotization of a primary aromatic amine, followed by an azo coupling reaction of the resulting diazonium salt with an acetoacetanilide coupling component. Their main use is in decorative paints, although a few products are suitable for printing inks.

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