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1.
The structures of disperse dyes and their intermolecular interactions have important impacts on dyeing and printing performances for polyester fabrics. The fluorine dyes show some unique molecular stability and photochemical properties. The dyeing property of the azo dye containing trifluoromethyl group for polyester fabrics, 4'-(N-acetoxyethyl-Nethyl)- amino-2-bromine-4-nitro-6-trifluoromethylazo- benzene (D1), was investigated and compared with the similar structure disperse dye. The results show that the high color yield and good exhaustion of the dyed PET fabrics could be obtained. The polyester fabrics dyed with D1 had excellent light fastness. Its single crystal was prepared and the supramolecular interactions were solved by X-ray diffraction. Dye D1 formed triclinic crystals in a trimeric packing mode. The C-F bond distances of CF3 are 1.2730 Å, 1.2240 Å and 1.2900 Å, respectively. The two benzene rings linked azo unit (-N=N-) are obviously twist. The dihedral angle of the two benzene rings is 50.23 o. There are six weak hydrogen bonds around trifluoromethyl group in the intramolecule and intermolecule. The excellent light stability of the dye should be attributed to its unique supramolecular structure. 相似文献
2.
Jae-hong Choi Mi-hyeon Kim Joon-soo Park Jeong-min Jeon Dae-ok Kim A. D. Towns 《Fibers and Polymers》2007,8(1):37-42
In Part 1 of this study, the dyeability, color shade, wash, light fastness and compatibility of homogeneous disperse dyes
on PLA fabric and PET fabric were reported. The present paper (Part 2) focuses on the application of commercial disperse dyes
to PLA fabric. Specific areas of investigation are the coloration properties of dyes originally intended for the production
of high lightfastness polyester fabrics or for application to cellulose diacetate. The compatibility of the eight members
of the dye set was investigated. In terms of lightfastness, the ratings were higher than that of conventional disperse dyes.
In addition, the use of dye combinations to achieve synergistic uptake on PLA was explored leading to the pronounced synergism
with a mixture of CI Disperse Blue 374 and 284. 相似文献
3.
Nine disperse dyes have been synthesized by diazotization of 2-amino-4-(p-nitrophenyl)-5-nitrothiazole and coupled to substituted
N-alkylanilines. Spectral properties in the IR and visible range of the dyes obtained were investigated. The dyeing performance
of these dyes was assessed on nylon and polyester fibers. These dyes were found to give reddish brown to bluish violet shades
on dyeing with very good depth, brightness and levelness on nylon and polyester fibers. The dyed fibers showed fairly good
light fastness, very good to excellent fastness to wash, rubbing, perspiration and excellent fastness to sublimation. The
dyebath exhaustion and fixation on the fiber were found to be very good. 相似文献
4.
In order to reduce environmental pollution from dyeing effluent, the cationic reverse micelles were prepared and used for removal of anionic Color Index (CI) Reactive Blue 19. The effect of surfactants, dyes, temperature and ultrasonic treatment on dye removal was investigated, respectively. The conductivity of CI Reactive Blue 19 aqueous solution was measured during removal process. In addition, the photograph of CI Reactive Blue 19 was also obtained. Finally, the removed dyes were backward extracted and reused for dyeing cotton fabrics. The results indicated that the removal of dyes was increased with increasing surfactants concentration and temperature, while the dye concentration exhibited the reverse trend. The higher removal of dyes could be caused by using ultrasonic treatment. The conductivity of dye aqueous solution was decreased with increasing surfactant concentration for the removal of dyes. The CI Reactive Blue 19 from backward extraction was reused for dyeing cotton fabrics, which exhibited the good property. 相似文献
5.
Yu Guan Ya-Hong Mao Qing-Kang Zheng Guang-Hong Zheng Tian Tian 《Fibers and Polymers》2009,10(4):488-495
Transfer printing with disperse dyes on cotton fabric modified with an aqueous tolylene diisocyanate derivative (TDD) was
discussed in this paper. The effect of the degree of substitution (DS) on color strength (K/S value) of the modified and transfer printed fabric was investigated. The DS of the cotton fabric increased with increases in TDD concentration and curing temperature and time, while the sample whiteness
decreased with the increasing curing temperature and time. And the change of structure of the modified cotton fabric was characterized
by FT-IR spectra, DSC curves, and SEM images. All of the factors, such as the concentration and molecular weight of poly(ethylene
glycol), the DS of the modified fabric, the transfer printing temperature and time would affect the K/S value of the sample. After transfer printing with disperse dye, the K/S value and printing fastness of TDD-modified cotton fabric were higher than those of cotton control fabric, the change of
chromatic difference was not obvious, but the tensile strength of the modified fabric was lower than that of original cotton. 相似文献
6.
One step dyeing of polyethylene terephthalate (PET) fabrics combining pretreatment and dyeing under the alkali condition was developed for cleaner production. One step dyeing of PET fabrics required that the dye used has good acid and alkali stability. In this paper, dyeing properties of three azo disperse dyes containing cyano group based on benzisothiazole, 3- (4-N-ethoxyl-N-cyanoethyl -phenyldiazenyl)-5-nitro-2,1-benzisothiazole (D1), 3-(4-N-ethyl-N-cyanoethyl- phenyldiazenyl)- 5-nitro-2,1-benzisothiazole (D2), and 3-(N-benzyl-N-cyanoethyl- phenyldiazenyl)-5-nitro-2,1-benzisothiazole (D3), were investigated under alkali condition. The results showed that polyester fabrics could be well dyed with D1, D2 and D3 under the acid condition. However, D1 was decomposed while dyeing at the alkali solution. D2 and D3 had excellent color yields under the alkali condition. The acid-alkali stability and the structure change were analyzed by UV-vis spectrum and high pressure liquid chromatography (HPLC). Gaussian 09 program package was used to optimize geometry by B3LYP method and 6-31G (d) basis set. The solvation energy of D1 in water was higher than those of D2 and D3. The electron withdrawn effect of the hydroxyl affected the energy gap of HOMO and LUMO orbits. D2 and D3 showed excellent stability in the strong alkali medium. And the dyed polyester fabrics with D2 and D3 at the alkali condition also had good fastness properties. 相似文献
7.
Vesna Ilić Zoran Šaponjić Vesna Vodnik Darka Mihailović Petar Jovančić Jovan Nedeljković Maja Radetić 《Fibers and Polymers》2009,10(5):650-656
The aim of this study was to examine the influence of dyeing on antibacterial efficiency of corona activated polyamide and polyester fabrics loaded with colloidal Ag nanoparticles as well as the influence of the presence of Ag nanoparticles on the color change of dyed fabrics. C.I. Acid Green 25 and C.I. Disperse Blue 3 were used for dyeing of polyamide fabrics and C.I. disperse violet 8 for polyester fabrics. The color change of polyamide fabrics depends on the dye type, which was generally lower compared to polyester fabrics. Antibacterial efficiency of Ag loaded fabrics was tested against Gram-positive bacterium Staphylococcus aureus and Gram-negative bacterium Escherichia coli. Corona activated polyester and polyamide fabrics showed excellent antibacterial efficiency independently of order of dyeing and Ag loading. The morphology of fibers loaded with Ag nanoparticles was assessed by SEM and atomic absorption spectroscopy for elemental analysis. 相似文献
8.
Due to compact structure of meta-aramid fiber caused by the intermolecular hydrogen bondings of amide groups, the degree of crystallinity increased, thus its poor dyeing properties arises. Among commercial dyes used in many previous researches, the basic dyes showed comparatively higher exhaustion yields as comparing to those of disperse dyes and acid dyes. The anthraquinone moiety was adopted for good performances of light fastness on meta-aramid fiber. In this study, eight of anthraquinone dye was synthesized. The three of them were obtained from chloro-anthraquinone, by Ullmann reactions with the corresponding heterocylic residues such as morpholine and one of them was obtained from lueco quinizarine by condensation with the corresponding heterocylic residues. The others were prepared by quaternization from dyes above. The synthesized disperse and cationic dyes were dyed on meta-aramid fibers and investigated for their build-up dyeing properties and wash fastness. 相似文献
9.
M. A. El-Borai H. F. Rizk G. B. El-Hefnawy H. F. El-Sayed S. A. Ibrahim 《Fibers and Polymers》2013,14(12):2061-2068
Three series of mono and disazo disperse dyes were synthesized from 2-amino-4-(pyridin-3-yl) thiazole. The structure of the synthesized dyes was confirmed by elemental analysis, ultraviolet-visible, infrared, proton and carbon nuclear magnetic resonance and mass spectroscopy. The dyeing parameters, perspiration, wash and light fastness of eighteen azo disperse dyes on polyester have been investigated. Application of these dyes on polyester fabric gave yellow to reddish hues for mono azo derivatives and reddish to dark brown hues for disazo derivatives with fair to moderate light fastness and moderate to good wash and perspiration fastness grade. In addition, the synthesized dyes were screened for their antimicrobial activities against some gram positive, gram negative bacteria and fungi. Some of the prepared dyes gave excellent results against most of the tested organisms. 相似文献
10.
Mohamed A. El-Borai Hala F. Rizk Gad B. El-Hefnawy Seham A. Ibrahim Samy S. Aser Hatem F. El-Sayed 《Fibers and Polymers》2016,17(5):729-737
A series of new azomethine dyes based on pyrazolone system have been synthesized via different routes. The solvatochromism for the dyes was evaluated with respect to spectroscopic properties in various solvents. The dyes were applied as disperse dyes on polyester fabrics and gave shade poor to excellent light fastness, washing, perspiration, sublimation, and rubbing fastness properties. Also the position of color in CIELAB coordinates (L*, a*, b*) and K/S value were investigated. 相似文献
11.
Six nano disperse dyes were prepared using corresponding O/W nanoemulsions which were obtained with sodium laurylsulphate
and caprylic triglyceride. The average particle size of the dyes prepared were in the range of 110–130 nm. Exhaust dyeing
using nano dyes resulted in low exhaustion yields of 17–26 % on regular polyester fiber and 28–38 % on ultramicrofiber polyester.
The observed low exhaustion yields of nano disperse dye can be explained by the solubilization of dye particles into surfactant
micelles as well as the high stability of the nanoemulsions, these might reduce the capacity of dye uptake onto the fibers.
However, higher K/S values of dyeings with nano dyes on ultramicrofiber sites compared to those on regular polyester sites
suggested their potential to be more efficient dyes for finer denier microfiber polyesters. 相似文献
12.
Kim Sam Soo Leem Su Gyung Ghim Han Do Kim Joon Ho Lyoo Won Seok 《Fibers and Polymers》2003,4(4):204-209
The effect of padding solution on the microwave heat dyeing of polyester fabric was studied extensively. Polyester fabrics
were impregnated in aqueous urea solution and aqueous sodium chloride solution for 10 min and then dyed for 7 min by microwave
apparatus (2 450 MHz, 700 W) under optimum conditions which provide good exhaustion. Aqueous solutions of urea and sodium
chloride showed more effective than water as a padding solution for microwave heat dyeing. The type of solvent added in padding
media and its concentration significantly affects the K/S values of dyed polyester fabric. Added solvents such as n-hexane,
acetone, and dimethyl formamide were also more effective than 100% water as padding media for the microwave heat dyeing. It
is supposed that the effect of used solvents on dyeing property of polyester fabrics depends on the solubility parameter difference
between solvent and polyester fabric. 相似文献
13.
Temporarily solubilized azo disperse dyes based on 1,2-substituted indoles were synthesized and characterized. Dispersant-free
dyeing of polyester by using the synthesized dyes has been investigated. The colour yields of the dyes on the polyester fabric
were found to be highly dependent on the dyeing pH, optimum results being obtained at pH 5. The dyes exhibited good to excellent
fastness properties on polyester while lightfastness was moderate. 相似文献
14.
Mikyung Kim Seokhan Yoon Taekyeong Kim Jin-seok Bae Namsik Yoon 《Fibers and Polymers》2006,7(4):352-357
The cotton fabrics were pretreated by sodium 2-(2,3-dibromopropionylamino)-5-(4,6-dichloro-1,3,5-triazinylamino)-benzenesulfonate
(DBDCBS) at alkaline condition of room temperature and then dyed with four disperse dyes having amino groups (C.I. Disperse Yellow
9, C.I. Disperse Red 11, C.I. Disperse Blue 56 and C.I. Disperse Violet 1) at acidic condition of high temperature. A novel
hetero-bifunctional bridge compound,DBDCBS, has two reactive groups such as dichloro-s-triazinyl group andα, β-dibromopropionylamido group. The first has reactivity towards hydroxy group of cellulosic fiber and the second shows reactivity
towards amino groups of disperse dye containing amino groups. The results indicate that it is possible to dye polyester/cotton
blend at one-bath dyeing using one kind of disperse dye containing amino groups. Therefore, two kinds of dyeing methods such
as two-bath process one-bath dyeing and one-bath process one-bath dyeing were investigated and their dyeabilities were compared.
The differences between these two methods were negligibly small so that perfect one-bath one-step dyeing of polyester/cotton
blend by one kind of disperse dye was achieved. 相似文献
15.
A series of monoazo disperse dyes with a photostablilizing o-hydroxycarbonyl moiety was incorporated resulted in the enhancement of the light fastness properties on polyester and nylon substrates as compared to the dyes that do not possess the photostablilizing moiety. The geometries of the azo and the hydrazone tautomeric forms of all dyes were optimized at B3LYP/6-311+G(d) and electrophilicity index was calculated for propensity of the moiety to absorb electrons. The values of absorption and stability trend of the dyes were in good agreement with the trend of experimental light fastness values. These disperse dyes possess excellent wash fastness and moderate to good sublimation fastness on hydrophobic substrates. 相似文献
16.
Sound absorption property, viscoelastic property and the effect of plasma treatment of four automotive nonwoven fabrics on
these properties are discussed in this research paper. Needle-punched fabrics used for vehicle headliner include 2 polyester
fabrics made of hollow polyester fibers or solid polyester fibers, and 2 polypropylene-composite cellulose fabrics made of
jute fibers or kenaf fibers, manufactured with the same web structure of apparent fabric density and fabric thickness. Hollow
polyester fiber fabric has the highest sound absorption and the highest loss factor, the second highest is jute fiber fabric.
The viscoelastic property is found to be related to the sound absorption property of fabric. The plasma treatment on nonwoven
fabrics changes their sound absorption and viscoelastic property as well as their fabric weight and pore size. Hollow polyester
fabric shows the increased sound absorption and viscoelastic property after the treatment with the increased pore sizes, while
regular polyester fabric displays insignificant changes. The cellulose fabrics are more affected by plasma treatment compared
to the polyester fabrics in terms of fabric weight loss and pore size, and jute fabric is more affected than kenaf fabric
due to fiber weakness. The jute fabric demonstrates the decreased sound absorption and viscoelastic property, while kenaf
fabric shows the increased sound absorption with the unchanged viscoelastic property after the treatment. 相似文献
17.
Jie Liu Ping Zhu Chuanjun Zhao Shuying Sui Zhaohong Dong Lin Zhang 《Fibers and Polymers》2014,15(8):1601-1608
Dyeing of wool fabrics with natural dyes from Phytolacca berries has been studied. The effect of dye concentration, dye bath pH, dyeing time and temperature were discussed. The influence of chitosan application on the dyeing properties of wool fabrics was investigated. The SEM photographs of chitosan treated wool fabrics clearly depict the deposition of chitosan on the fibers. The effect of chitosan concentration, dye bath pH, dyeing time and temperature has been studied by orthogonal experiment. It has been proved that the dyed wool samples pretreated by chitosan have higher color fastness, faster dyeing rate, and better antibacterial properties compared with untreated ones. 相似文献
18.
Poly(1,4-phenylene sulfide) (PPS) exhibits good dimensional stability and flame retardant characteristics but its commercial development as fibers is highly limited due to lesser dyeing and finishing characteristics. Hence in the present study, we focused on the anionic and cationic modifications of PPS to enhance its dyeing ability towards disperse, cationic, and anionic dyes. Novel sulfonation and chloromethylation-quaternization of PPS fiber were carried out to achieve an industrially viable dyeing process methodology. The chemically modified PPS fiber is dyed with disperse, cationic, and anionic dyes, and the dyeing adsorption efficiency is quantitatively studied using a dye-o-meter equipped with UV-visible absorption spectroscope. The ideal parameters for dye adsorption were determined as a function of dyeing time, material-toliquor ratio, dyeing temperature, carrier concentration, sulfonation, and chloromethylation. The fastness properties of the dyed fabrics were also studied. Overall, with a maximum dye uptake of 99 % and 90 % achieved for sulfonated PPS and quaternized PPS respectively, the optimized conditions can be readily scaled-up to the commercial dyeing of PPS fiber with disperse, anionic, and cationic dyes. 相似文献
19.
B. Cenkkut Gültekin Nergis Demirel Gültekin Onur Atak Ramazan Şimşek 《Fibers and Polymers》2018,19(2):313-320
Electromagnetic shielding has a very emerging role in the textile applications. Screen-printing is a well-known, easy and cost effective process for textile printing. In this study, carbon black and graphite particles were used to impart electromagnetic shielding property to polyester fabric by screen printing technique. To this aim, printing pastes containing carbon materials were prepared with different binder concentrations. The electrical resistance, surface morphology, color coordinates and washing fastness properties of screen printed polyester fabrics were investigated. The washing durability of electromagnetic shielding effectiveness of carbon based printed fabrics as a function of binder concentration have also been studied. Electromagnetic shielding effectiveness was evaluated in the frequency ranges between 15-3000 MHz. The results showed that the electromagnetic shielding properties of fabric were affected by increased binder concentration. The most durable electromagnetic shielding effectiveness after washing process was obtained at highest binder concentration. The surface morphologies and color difference values of printed fabrics after washing process also provided a positive contribution. 相似文献
20.
Aramid fibers have been known to difficult to dye with conventional dyes and dyeing techniques because of its extremely high
crystallinity and compactness. In order to make the aramid fibers dyeable to a bright color in deep shade, meta-aramid fabrics were photografted under continuous UV irradiation with dimethylaminopropyl methacrylamide (DMAPMA) and benzophenone
as a monomer and a hydrogen-abstractable photoinitiator respectively. Several factors affecting the photografting treatment
of the meta-aramid fabrics were investigated including monomer and photoinitiator concentrations. ATR, ESCA and SEM analysis
indicated significant alterations on the chemical structure and atomic composition of the photografted fabric surface and
the fabric surface was covered with the grafted polymers. While the pristine meta-aramid fabrics showed no appreciable dyeability
to the α-bromoacrylamide type reactive dyes, the grafted aramid fabrics showed the remarkably enhanced dyeability to the reactive
dyes, which was proportional to the graft yield indicating the covalent bond formation between the dyes and the secondary
amino groups in the grafted DMAPMA. In case of C.I. Reactive Red 84, a K/S value of 14.8 can be obtained with the grafted meta-aramid fabrics with a graft yield of 7.6 % (w/w). Also and the color
fastness properties of the dyed fabrics was excellent in the conditions of washing, rubbing and solar irradiation. 相似文献