scholarly journals Dyeing of hydrophobic fabrics with disperse dyes

2001 ◽  
Vol 66 (6) ◽  
pp. 367-376 ◽  
Author(s):  
Hari Maradiya ◽  
Vithal Patel
Keyword(s):  
Absorption Spectroscopy ◽  
Elemental Analysis ◽  
Cellulose Triacetate ◽  
Spectral Studies ◽  
Disperse Dyes ◽  
Fastness Properties ◽  
Visible Absorption ◽  
Dyed Fabrics ◽  
Yellowish Orange ◽  
Visible Absorption Spectroscopy

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, perspiration and sublimation fastness properties of the dyed fabrics were found to be good to excellent.

scholarly journals Synthesis of Disperse Dyes from Pyridone and Resorcinol Coupled to Diazotized 2-Amino-4-chloro-5-formylthiazole and Application to Polyester

2014 ◽  
Vol 2014 ◽  
pp. 1-7 ◽  
Author(s):  
Yusuf Y. Lams ◽  
P. O. Nkeonye ◽  
K. A. Bello ◽  
M. K. Yakubu ◽  
A. O. Lawal
Keyword(s):  
Absorption Spectroscopy ◽  
Spectral Studies ◽  
Disperse Dyes ◽  
Fastness Properties ◽  
Visible Absorption ◽  
Polyester Fabrics ◽  
Wash Fastness ◽  
Dyed Fabrics ◽  
Visible Absorption Spectroscopy ◽  
C Nmr

The aim of this study was to synthesize disperse dyes in the derivative of 2-amino-4-chloro-5-formylthiazole by conventional diazotization and couplings with pyridone and resorcinol. The dyes were characterized by visible absorption spectroscopy, IR spectral studies, and 1H and 13C NMR. The pyridone and resorcinol substituted dyes exhausted well with good depth on 100% polyester fabrics with a shade of brown and purple colours, respectively. The heteroatom and the intrinsic conjugation in the thiazole structure results in high bathochromic shifts and lead to brightness of shades. The dyed fabrics showed very good to excellent wash fastness and moderate to good light and perspiration fastness properties.

scholarly journals The synthesis and application of 3-arylazo-4-phenylthieno[2, 3-c]isothiazole and ethyl 3-arylazo-4-phenylthieno[2, 3-c]isothiazole- 5-carboxylate

2005 ◽  
Vol 70 (6) ◽  
pp. 799-805 ◽  
Author(s):  
G.G. Pawar ◽  
P. Bineesh ◽  
P.S.R. Kumar ◽  
D.W. Rangnekar ◽  
V.R. Kanetkar
Keyword(s):  
Absorption Spectroscopy ◽  
Azo Dyes ◽  
Polyester Fabric ◽  
Disperse Dyes ◽  
Fastness Properties ◽  
Visible Absorption ◽  
Azo Disperse Dyes ◽  
Visible Absorption Spectroscopy

The paper describes the synthesis of 3-amino-4-phenylthieno_2,3-c_isothiazole and ethyl 3-amino-4-phenylthieno_2,3-c_isothiazole-5-carboxylate and their utilization to prepare a range of azo disperse dyes. These novel aryl azo dyes were studied with respect to their color and constitution relationship. The application of these dyes on a polyester fabric and their fastness properties were evaluated. These dyes were characterized by NMR, IR and visible absorption spectroscopy.

scholarly journals Disperse Dyes Based on Thiazole, Their Dyeing Application on Polyester Fiber and Their Antimicrobial Activity

2013 ◽  
Vol 2013 ◽  
pp. 1-5 ◽  
Author(s):  
S. K. Zadafiya ◽  
J. H. Tailor ◽  
G. M. Malik
Keyword(s):  
Antimicrobial Activity ◽  
Elemental Analysis ◽  
Polyester Fiber ◽  
Spectral Studies ◽  
Disperse Dyes ◽  
Fastness Properties ◽  
Antibacterial And Antifungal Activities ◽  
Aryl Amines ◽  
Azo Disperse Dyes ◽  
Antibacterial And Antifungal

Various diazotized aryl amines were coupled with N-(4-nitrophenyl)-2-[(4-phenyl-1,3-thiazol-2-yl)amino]acetamide to give the corresponding various azo disperse dyes (D1-D13). These dyes were applied to polyester fiber by HTHP method and their fastness properties were evaluated. Dyes were characterized by IR, elemental analysis, and NMR spectral studies. These dyes showed very good antibacterial and antifungal activities.

scholarly journals Assessment of Dyeing Properties of Novel Bisazo-Bisazomethine Disperse Dyes on Polyester Fabric

2011 ◽  
Vol 8 (3) ◽  
pp. 1218-1225 ◽  
Author(s):  
B. C. Dixit ◽  
D. M. Patel
Keyword(s):  
Aromatic Amines ◽  
Polyester Fabric ◽  
Spectral Studies ◽  
Disperse Dyes ◽  
Fastness Properties ◽  
Visible Absorption ◽  
Polyester Fabrics ◽  
H Nmr ◽  
Dyeing Performance ◽  
Uv Visible

Novel bisazo-bisazomethine disperse dyes were prepared by the coupling of diazotized solutions of various aromatic amines with 2,2'-{sulfonylbis [4,1-phenylene nitrilomethylylidene]} diphenol (SB). Above Schiff base was prepared by the condensation of 2-hydroxybenzaldehyde with 4,4’-sulphonyl- dianiline (Dapson). The resultant dyes were characterized by elemental analysis, IR and1H NMR spectral studies. The UV Visible absorption spectral data were investigated in dimethylformamide (DMF) and are discussed in terms of structural property relationship. Their dyeing performance as disperse dyes has been assessed on polyester fabrics. The results show that a better hue was obtained on polyester fabrics and have mild to moderate fastness properties.

scholarly journals Synthesis and application of 2-aminothiadiazole disperse dyes for nylon fabrics

2001 ◽  
Vol 66 (2) ◽  
pp. 87-93
Author(s):  
Maradiya Raghav ◽  
Vithal Patel
Keyword(s):  
Elemental Analysis ◽  
Spectral Studies ◽  
Disperse Dyes ◽  
Fastness Properties ◽  
Light Fastness ◽  
Nylon Fabric ◽  
Wide Range

Some disperse dyes based on 2-amino-5-mercapto-1,3,4-thiadiazole have been prepared by coupling with various N-arylacrylamides. The dyes were characterized by IR spectral studies and elemental analysis. All the dyes were applied as disperse dyes on nylon fabric. These dyes have been found to give a wide range of color shades with very good depth and levelness on fabrics. The percentage dye bath exhaustion and fixation on the fabric have been found to be very good. The dyied fabrics showed moderate to good light fastness and very good to excellent washing, rubbing, persperation and sublimation fastness properties.

scholarly journals Synthetic utility of 5-amino-6-cyano-2-phenylthieno[2,3-d] oxazole

2005 ◽  
Vol 70 (11) ◽  
pp. 1249-1253 ◽  
Author(s):  
V.R. Kanetkar ◽  
R.R. Walavalkar
Keyword(s):  
Ir Spectroscopy ◽  
Absorption Spectra ◽  
Polyester Fabric ◽  
Disperse Dyes ◽  
Fastness Properties ◽  
Visible Absorption ◽  
Synthetic Utility ◽  
Azo Disperse Dyes

This paper describes the synthesis of 5-amino-6-cyano-2-phenylthieno[ 2,3-d]oxazole and its utilization for the preparation of a range of azo disperse dyes. These aryl azo disperse dyes were applied on polyester fabric and their fastness properties were evaluated. The dyes were characterized by NMR and IR spectroscopy. The visible absorption spectra of these dyes were Recorded.

Noise Analysis and Denoising Research on the UV-Visible Absorption Spectroscopy Water Quality Detection System

2014 ◽  
Vol 51 (4) ◽  
pp. 043002 ◽  
Author(s):  
汤斌 Tang Bin ◽  
魏彪 Wei Biao ◽  
毛本将 Mao Benjiang ◽  
赵敬晓 Zhao Jingxiao ◽  
冯鹏 Feng Peng
Keyword(s):  
Water Quality ◽  
Absorption Spectroscopy ◽  
Detection System ◽  
Noise Analysis ◽  
Visible Absorption ◽  
Quality Detection ◽  
Uv Visible ◽  
Visible Absorption Spectroscopy
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