One-step dyeing of polyethylene terephthalate fabric, combining pretreatment and dyeing using alkali-stable disperse dyes

2013 ◽  
Vol 129 (6) ◽  
pp. 438-442 ◽  
Author(s):  
Aiqin Hou ◽  
Min Li ◽  
Fengliang Gao ◽  
Kongliang Xie ◽  
Xingying Yu
Keyword(s):  
Polyethylene Terephthalate ◽  
Disperse Dyes ◽  
One Step

scholarly journals Current Advances in the Biodegradation and Bioconversion of Polyethylene Terephthalate

2021 ◽  
Vol 10 (1) ◽  
pp. 39
Author(s):  
Xinhua Qi ◽  
Wenlong Yan ◽  
Zhibei Cao ◽  
Mingzhu Ding ◽  
Yingjin Yuan
Keyword(s):  
Polyethylene Terephthalate ◽  
Microbial Consortium ◽  
Tricarboxylic Acid Cycle ◽  
Tca Cycle ◽  
Tricarboxylic Acid ◽  
Microbial Consortia ◽  
Plastic Pollution ◽  
One Step ◽  
Complex Polymers ◽  
The One

Polyethylene terephthalate (PET) is a widely used plastic that is polymerized by terephthalic acid (TPA) and ethylene glycol (EG). In recent years, PET biodegradation and bioconversion have become important in solving environmental plastic pollution. More and more PET hydrolases have been discovered and modified, which mainly act on and degrade the ester bond of PET. The monomers, TPA and EG, can be further utilized by microorganisms, entering the tricarboxylic acid cycle (TCA cycle) or being converted into high value chemicals, and finally realizing the biodegradation and bioconversion of PET. Based on synthetic biology and metabolic engineering strategies, this review summarizes the current advances in the modified PET hydrolases, engineered microbial chassis in degrading PET, bioconversion pathways of PET monomers, and artificial microbial consortia in PET biodegradation and bioconversion. Artificial microbial consortium provides novel ideas for the biodegradation and bioconversion of PET or other complex polymers. It is helpful to realize the one-step bioconversion of PET into high value chemicals.

Investigation from Synthesis to Crystal Structure to Application of Ecofriendly Disperse Dyes on One-Step Dyeing of PET Fabric

2016 ◽  
Vol 5 (1) ◽  
pp. 758-766 ◽  
Author(s):  
Min Li ◽  
Wujun Ma ◽  
Liping Zhang ◽  
Christiana Agbo ◽  
Shaohai Fu
Keyword(s):  
Crystal Structure ◽  
Disperse Dyes ◽  
Pet Fabric ◽  
One Step

One-Bath Dyeing Technology for Cotton Blended Fabric - Part 1: Elaboration of a Dyebath Content

2018 ◽  
Vol 762 ◽  
pp. 385-389 ◽  
Author(s):  
Anna Borisova
Keyword(s):  
Disperse Dyes ◽  
Industrial Testing ◽  
One Step ◽  
One Bath Dyeing ◽  
The One

The present study deals with the one-step one-bath dyeing of twill weaved 50/50 cotton/polyester blended fabric using disperse dyes only. The study includes dyeing recipe development, considering the determination of optimum concentrations of dyestuff and auxiliaries, and sufficient pH of dyebath. The proposed method is time consuming and hence can be recommended for industrial testing.

scholarly journals Enhancing the Dyeability of Polypropylene Fibers by Melt Blending with Polyethylene Terephthalate

2013 ◽  
Vol 2013 ◽  
pp. 1-10 ◽  
Author(s):  
Fereshteh Mirjalili ◽  
Siamak Moradian ◽  
Farhad Ameri
Keyword(s):  
Polyethylene Terephthalate ◽  
Tensile Testing ◽  
Disperse Dyes ◽  
Polypropylene Fibers ◽  
Melt Blending ◽  
Thermal And Mechanical Properties ◽  
Scanning Calorimetry ◽  
Dyeing Performance ◽  
Ft Ir ◽  
Ft Ir Spectroscopy

Attempts were made to modify polypropylene fibers by melt blending with polyethylene terephthalate in order to enhance the dyeability of the resultant fiber. Five blends of polypropylene/polyethylene terephthalate/compatibilizer were prepared and subsequently spun into fibers. Three disperse dyes were used to dye such modified fibers at boiling and 130°C. The dyeing performance of the blend fibers, as well as the morphological, chemical, thermal, and mechanical properties, of the corresponding blends was characterized by means of spectrophotometry, polarized optical microscopy, scanning electron microscopy (SEM), FT-IR spectroscopy, differential scanning calorimetry (DSC), and tensile testing.

scholarly journals One-bath One-step Dyeing of Polyester/Cotton (PC) Blends Fabric With Disperse Dyes After Acetylation of Cotton

2021 ◽  
Author(s):  
Girmaye Kumsa Bana ◽  
Gemeda Gebino Gelebo ◽  
Gezu Ketema Janka
Keyword(s):  
Tensile Strength ◽  
Surface Modification ◽  
Disperse Dyes ◽  
Disperse Dye ◽  
Color Strength ◽  
Acetyl Content ◽  
Dyeing Process ◽  
One Step ◽  
The One ◽  
Dyed Fabric

Usually, the two-bath dyeing process using disperse dyes and reactive dyes separately was employed for the dyeing of PC blends. The cost of the double bath, dyeing cycle, energy consumption and chemical consumption is quite higher than the one-step or single bath dyeing methods. In this study, the one-bath dyeing process using one kind of dye was investigated. Polyester cotton blends dyed in one-bath one-step dyeing methods with disperse dye after surface modifications of cotton by acetylation methods were studied. Surface modification of cotton was carried out using fibrous acetylation methods. The effect of acetic anhydride and time on percent acetyl content at room temperature was studied. Modified polyester/cotton was carried out in HTHP dyeing machine incorporates with different dye concentrations and dyeing temperature. Surface chemistry, thermal decomposition property and moisture regain of modified polyester/ cotton blend are evaluated. The color strength of the dyed fabrics and their fastness properties to washing, light, and rubbing as well as tear strength and abrasion resistance were evaluated. The effect of dye concentration and temperature color strength, tensile strength warp and weft direction was assessed. The optimum value for surface modification was obtained with a concentration of acetylation agent 16% and time of reaction 2.5 hours, gave percent acetylation of 34. An FTIR spectrum shows acetylation resonance. The experiment result of dyeing showed that the optimum value was obtained with dye concentration above 1% at a temperature of 120oC, warp tensile strength decreased by 12% and weft tensile strength was decreased by 9% from the control half-bleached fabric. Results of this study showed that a one-step one-bath dyed modified polyester/cotton blend with disperse dye fabric presents good fastness property compared with conventional two-bath dyed fabric as well as colour strength values.

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