Ultralow emission micro-printing process for PET fibers using liquid disperse dye

2021 ◽  
pp. 004051752110457
Author(s):  
Li Ai ◽  
Hongmei Cao ◽  
Yawei Zhu

The commercial powder disperse dye used for printing polyester fabrics exhibits many environmentally-unfriendly properties, especially the associated high wastewater emission. In this study, three kinds of liquid disperse dyes (C.I. Disperse Blue 291:1, (L-DB); C.I. Disperse Red 179, (L-DR), and C.I. Disperse Orange 30, (L-DO)), two kinds of binders (A and/or B), and a micro-printing process, were applied to polyester fabric, with the goal of reducing freshwater consumption while maintaining color fastness. The influences of rheological and printing performance and color fastness were studied. Home-made liquid dyes of L-DB, L-DR and L-DO were found to exhibit higher color depth, excellent color fastness, and ultralow emission of wastewater and waste residual during the micro-printing process. The binder comprised of silicone-modified polyacrylate was observed to increase dye uptake, reduce dye sublimation, and improve color fastness. The liquid dyes of L-DB, L-DR and L-DO also exhibit stable and better rheological properties, which appeared to have little effect on the viscosity of printing pastes when compared with commercial powder disperse dye of Blue 3GFL (C.I. Disperse Blue 291:1), Red 2B (C.I. Disperse Red 179) and Yellow brown S-4RL (C.I. Disperse Orange 30), respectively. Results of this micro-printing process indicated that it is an environmentally clean production technology.

2020 ◽  
Vol 1005 ◽  
pp. 116-122
Author(s):  
Juthapak Pukngam ◽  
Porntip Tooptompong ◽  
Jantip Setthayanond ◽  
Pimonrat Hansakulwat

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.


2011 ◽  
Vol 335-336 ◽  
pp. 1061-1066 ◽  
Author(s):  
Ying Zhao ◽  
Xiao Yan Tan ◽  
Xiao Qiao Wan ◽  
Wei Liu ◽  
Ze Hua Yu

The dyeing properties of acetylated fir powder and acetylated poplar spill with 8 red disperse dyes were studied in this paper. The dyeing results indicate that the percentage of dye exhaustion (% E)on acetylated fir powder is 96~99%. As for acetylated poplar spill, the percentage of dye exhaustion reaches 58~78%. The color shade of dyed modified wood is similar to that of dyed polyester fabric. Compared with the dyed polyester fabric, the color difference(∆E) of dyed modified wood is smaller than that of dyed unmodified wood under the same dyeing conditions. Furthermore, modified fir powder has excellent color fastness to washing, the dye removal of dyed acetylated fir powder is 0.4 ~ 1.8 % at 80°C for 2 h in the water. Both the Infrared (IR) spectra and microscopic images of fir powder, acetylated fir powder and dyed acetylated fir powder were investigated.


2020 ◽  
Vol 11 (1) ◽  
pp. 37-42
Author(s):  
Md Abdullah Al Mamun ◽  
Mohammad Mamun Hossain ◽  
Mubarak Ahmad Khan

Polyester fabric is usually dyed with disperse dyes which has severe limitations specially toxicity and environmental issues. The aim of the present research is to introduce an ecofriendly dyeing process for polyester fabric with natural dyes. The natural colorants were extracted from mahogany seed pods using the simple acid boiling method. The spectroscopic analysis of the crude extract was carried out by UV and IR spectra of the extracted dyes and illuminated the presence of natural tannins as coloring materials in the crude extract. 10g fabric was dyed in 200cc extracted solution at 130⁰C for 60 minutes in exhaust dyeing method followed by neutralization and soaping. Finally, a light brown dyed fabric was obtained. The dyed fabric exhibited color strength in terms of k/s value of 0.63 (λmax 360nm), lightness of 80.565 and chromaticity value of 12.002 CIE units. Different samples were dyed by fluctuating the dyeing period. The dyeing traits of the dyed materials were judged in terms of their color strength and fatness properties. All testes were carried out following the ISO standards. From the results, it is lucid that the dyed fabric showed acceptable color fastness properties in case of all fastness except color fastness to light. It is observed that dyeing time had profound influence on the color strength (k/s value) of the dyed material. The k/s value increases with the increase of dyeing period up to 120 minutes. The maximum color strength (0.76) was noted for the fabric. The shorter dyeing time produces lighter samples and the longer dyeing time produced colorful samples. Journal of Engineering Science 11(1), 2020, 37-42


2020 ◽  
Vol 7 (5) ◽  
pp. 9-16
Author(s):  
Marija Kodric ◽  
Dragan Djordjevic

Modification of polyester fibers for more economical dyeing at lower temperatures without a carrier are considered in this study. Polyester dyeing is carried out industrially under rigorous conditions at high temperatures and under increased air pressure, and are treated with various solvents (primary alcohols) to make the fibers more permeable. As a result, the sorption properties, as well as the disperse dye dyeing ability, are improved. Dyeing of a modified polyester fabric at lower temperatures yielded better results than the standard dyeing of the unmodified polyester under the same conditions. The effects of fiber modification were analyzed through water absorption properties, wetting, swelling, differential scanning calorimetry (DSC), and Fourier transform infrared (FTIR) methods, and the degree of dyeing of the fabric was evaluated using CIELab parameters.


2011 ◽  
Vol 287-290 ◽  
pp. 2630-2634
Author(s):  
Chien Kuo Yen ◽  
Yi Jun Pan ◽  
Yi Yen Yeh ◽  
Yen Yu Chen ◽  
Yi Jyun Yao

During PET fabric dyed with disperse dye by adding ZnO powder and ceramic bead made from which was studied. To utilize the effect of transmission of FIR to produce heat, it might reduce consuming quantity of dyestuffs and minimize requiring heat of conventional dyeing in the considerable extent. To vary the adding amount of ZnO powder within ceramic bead, the after-treatment time of ceramic bead, dyeing temperature and the concentration of dyeing solution, then the outcomes of dyeing was investigated. The researching results showed, there were obvious effectiveness to some specific disperse dyes either added ZnO powder or ceramic bead in dyeing bath. Under the same dyeing temperature, the color-depth of dyed fabric is deeper with the dyeing liquor of adding ZnO powder and ceramic bead; otherwise, the effect of adding ZnO powder was superior to which of ceramic bead.


2014 ◽  
Vol 490-491 ◽  
pp. 951-954
Author(s):  
Hui Bei Shi ◽  
Yong Zhu Cui ◽  
Fang Ye ◽  
Xiao Wang ◽  
Li Hua Lv

Dye-free coloration in dyeing and printing for tussah silk were studied in different conditions. The optimal processes of dye-free and printing has been got. The optimal process of dye-free was PHBA1.5%, acid 14%, 60°C for 30 min, then add H2O2 for oxidation. And the optimal printing process of dye-free was PHBA2.0%, acid 18%, steam for 20 min after being printed. Colored and printed tussah fabric reactions occurred in the fabric itself, so the mechanical properties of chromogenic fabric unchanged almost, which had excellent color fastness and levelness.


Author(s):  
Md. Koushic Uddin ◽  
Sonia Hossain ◽  
Umma Habiba ◽  
Md Nafiur Rahman ◽  
Rayhan Mahmud

Dispersing agents play important roles in polyester dyeing with disperse dyes. The purpose of this work is to determine the influence of dispersing agents on the adsorption and desorption rate of polyester dyeing with CI Disperse Blue 284. Polyester fabric was dyed at HTHP method using two types of dispersing agents at different concentrations. The performances studied were the changes in dye transfer rate, K/S values of the dyed samples and dye bath concentration. The rate of adsorption and desorption of disperse dyes were affected significantly not only by the type but also the concentration of dispersing agents.


2017 ◽  
Vol 23 (1) ◽  
pp. 131-139 ◽  
Author(s):  
Marija Kodric ◽  
Sandra Stojanovic ◽  
Branka Markovic ◽  
Dragan Djordjevic

In this paper, modelling of dyeing, i.e. adsorptive behaviour of disperse dyes on polyester fibres (dyeing), under the influence of ultrasound has been considered with the aim of getting the data about mechanisms of binding the dyes and defining the conditions of dyeing process of this synthetic fibres along with additional energy source without the use of carriers, compounds that increase permeability of the fibres and help dyeing. Dyeing - adsorption is conducted under different conditions, and the concentration of dyes, mass of the substrate, recipes and time of dyeing were being varied. It has been established that ultrasound allows dyeing without carriers and the efficiency of dyeing depends on the time of contact, initial concentration of the dye and the amount of absorbent - material. There is the continuity of growth of the amount of bound dye to the mass of the absorbent. Characteristic graphs, obtained from Langmuir isotherm, have confirmed that this model ensures precise description of polyester dyeing by disperse dye. Kinetic of dyeing has been remarkably interpreted by pseudo second-order in regards to the high functionality.


2020 ◽  
Vol 0 (0) ◽  
pp. 0-0
Author(s):  
Reda M El-Shishtawy ◽  
Nahed Ahmed ◽  
Sahar Nassar ◽  
Fayza kantouch

2021 ◽  
Vol 22 (2) ◽  
pp. 396-404
Author(s):  
Lu Zhang ◽  
Qingquan Zhou ◽  
Qipeng Zhang ◽  
Minghua Wu

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