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<p>Preface xv</p> <p><b>Part 1: Sustainable Dye Extraction and Dyeing Techniques 1</b></p> <p><b>1 Extraction and Application of Natural Dyes 3<br /></b><i>Sanjeeda Iqbal and Taiyaba Nimra Ansari</i></p> <p>1.1 Introduction 4</p> <p>1.2 What are Natural Dyes? 6</p> <p>1.3 Why Natural Dyes? 7</p> <p>1.4 What are Synthetic Dyes? 8</p> <p>1.5 Sources of Natural Dyes 9</p> <p>1.6 Types of Natural Dyes 10</p> <p>1.6.1 Classification on the Basis of Their Chemical Constitution 10</p> <p>1.6.2 Classification Based on Method of Application/Preparation 11</p> <p>1.7 Natural Dyes Need Fixing Agent (Mordants) for Bonding 13</p> <p>1.7.1 Metallic Mordants 13</p> <p>1.7.2 Tannins and Tannic Acid 14</p> <p>1.7.3 Oil Mordants 14</p> <p>1.7.4 Bio-Mordants 14</p> <p>1.7.5 Method of Application 16</p> <p>1.8 Fibers/Fabrics Used for Natural Dyeing 16</p> <p>1.8.1 Cellulosic Fiber 16</p> <p>1.8.2 Protein Fiber 16</p> <p>1.8.3 Synthetic Fiber 17</p> <p>1.9 Extraction of Natural Dyes 17</p> <p>1.10 Dyeing Process 18</p> <p>1.10.1 Preparation of Fabric Before Dyeing 18</p> <p>1.10.2 Mechanism of Dyeing 19</p> <p>1.10.3 Process of Dyeing 19</p> <p>1.11 Evaluation of the Dyed Fabric 24</p> <p>1.11.1 Color Strength or K/S Value 24</p> <p>1.11.2 Color Fastness Properties 25</p> <p>1.12 Some Special Characteristics of Naturally Dyed Fabric 26</p> <p>1.12.1 Antimicrobial Properties 26</p> <p>1.12.2 UV Protection 26</p> <p>1.12.3 Deodorizing Finishing 27</p> <p>1.12.4 Moth Resistant and Insect Repellent 27</p> <p>1.13 Conclusion 27</p> <p>1.13.1 Overview 29</p> <p>1.13.2 Legislative Regulations for Synthetic Dyes 30</p> <p>1.13.3 Sustainability Aspects of Natural Dyes 30</p> <p>1.13.4 Practicality of Natural Dyes 32</p> <p>Acknowledgement 32</p> <p>References 33</p> <p><b>2 Recent Advances in Non-Aqueous Dyeing Systems 43<br /></b><i>Omer Kamal Alebeid, Elwathig A.M. Hassan and LiujunPei</i></p> <p>2.1 Introduction 43</p> <p>2.2 Supercritical Fluid Dyeing System 44</p> <p>2.2.1 Application of Supercritical CO₂ on Synthetic Fabric 46</p> <p>2.2.2 Application of Supercritical CO₂ on Natural Fabric 48</p> <p>2.2.3 Dyes Solubility in Supercritical Fluids 56</p> <p>2.3 Reverse Micelle Systems 57</p> <p>2.3.1 Mechanism and Formation of Reverse Micelle 57</p> <p>2.3.2 Application of Reverse Micelle Dyeing System 59</p> <p>2.4 Solvent Dyeing 61</p> <p>2.5 Silicone Non-Aqueous Dyeing 62</p> <p>2.6 Conclusion 68</p> <p>References 68</p> <p><b>3 Structural Coloration of Textile Materials 75<br /></b><i>Showkat Ali Ganie and Qing Li</i></p> <p>3.1 Introduction 75</p> <p>3.2 Thin-Film Interference 77</p> <p>3.2.1 Principle of Thin-Film Interference 78</p> <p>3.2.2 Multilayer Interference 79</p> <p>References 84</p> <p><b>4 Enzymatic Wet Processing 87<br /></b><i>Mohammad Toufiqul Hoque, Nur-Us-Shafa Mazumder and Mohammad Tajul Islam</i></p> <p>4.1 Introduction 87</p> <p>4.2 Enzymes 89</p> <p>4.3 Function of Enzymes 89</p> <p>4.4 Classification of Enzymes 89</p> <p>4.5 Αn-Amylase Enzyme for Desizing 92</p> <p>4.6 Pectinase Enzyme for Scouring 93</p> <p>4.7 Protease Enzyme for Wool Anti-Felting 94</p> <p>4.8 Cellulase Enzyme for Biopolishing and Biostoning 96</p> <p>4.9 Hairiness Removal Mechanism 98</p> <p>4.9.1 During Scouring and Bleaching in Alkaline Condition 98</p> <p>4.9.2 Applying Before Dyeing in Acidic Condition 99</p> <p>4.10 Enzyme Decolorization of Textile Effluent 100</p> <p>4.11 Enzymes for Increasing Dyeability of Different Fibers 101</p> <p>4.11.1 Application on Cotton 101</p> <p>4.11.2 Application on Nylon 103</p> <p>4.12 Conclusion 104</p> <p>References 105</p> <p><b>Part 2: Sustainable Functional Finishing of Various Textile Materials 111</b></p> <p><b>5 Coating Textiles: Towards Sustainable Processes 113<br /></b><i>Imene Ghezal</i></p> <p>5.1 Introduction 114</p> <p>5.2 Most Used Polymers for Coating Textiles 114</p> <p>5.2.1 Polytetrafluoroethylene (PTFE) 114</p> <p>5.2.2 Polyvinyl Acetate (PVAc) 115</p> <p>5.2.3 Polyvinyl Alcohol (PVA) 116</p> <p>5.2.4 Polyurethanes (PUs) 116</p> <p>5.2.5 Polyvinyl Chloride (PVC) and Polyvinylidene Chloride (PVDC) 116</p> <p>5.2.6 Polysiloxanes 118</p> <p>5.2.7 Acrylics 118</p> <p>5.2.8 Phosphorous-Based Polymers 118</p> <p>5.3 Traditional Coating Methods 118</p> <p>5.4 Environmental Friendly Polymers 121</p> <p>5.4.1 Cyclodextrins 121</p> <p>5.4.2 Chitin and Chitosan 123</p> <p>5.4.3 Sodium Alginate 123</p> <p>5.4.4 Polyethylene Glycols 124</p> <p>5.4.5 Natural Rubber 125</p> <p>5.4.6 Polyvinyl Alcohol 126</p> <p>5.4.7 Dendrimers 127</p> <p>5.4.8 Sericin 127</p> <p>5.4.9 Polyphenols 128</p> <p>5.5 Sustainable Coating Technologies 129</p> <p>5.5.1 Powder Coating Technique 129</p> <p>5.5.2 Sol–Gel Technology 130</p> <p>5.5.3 Plasma Treatment 131</p> <p>5.5.4 Electro-Fluidodynamic Technology 132</p> <p>5.5.5 Supercritical Fluid Technology 133</p> <p>5.5.6 Vapor Deposition Methods 134</p> <p>5.6 Conclusion 135</p> <p>References 136</p> <p><b>6 A Review on Hydrophobicity and Fabricating Hydrophobic Surfaces on the Textiles 149<br /></b><i>Mohammad Khajeh Mehrizi and Zahra Shahi</i></p> <p>6.1 Introduction 149</p> <p>6.2 Self-Cleaning Surfaces 151</p> <p>6.3 Applications of Hydrophobic Surfaces 151</p> <p>6.4 Basic Theories: Modeling of Contact Angle 152</p> <p>6.4.1 Young’s Model 152</p> <p>6.4.2 Wenzel Model (Homogeneous Interface) 152</p> <p>6.4.3 Cassie–Baxter Model (Composite Interface) 153</p> <p>6.5 Techniques to Make Super-Hydrophobic Surfaces 154</p> <p>6.6 Methods of Applying Hydrophobic Coating on Textiles 156</p> <p>6.6.1 Dip-Coating 156</p> <p>6.6.2 Spray Coating 156</p> <p>6.7 Contact Angles (CA) Measurement 156</p> <p>6.8 Research Records on Hydrophobic Surface Production 157</p> <p>6.9 Conclusion 162</p> <p>References 163</p> <p><b>7 UV Protection: Historical Perspectives and State-of-the-Art Achievements 167<br /></b><i>Narcisa Vrinceanu and Diana Coman</i></p> <p>7.1 Introduction 167</p> <p>7.2 Fundamentals Regarding UV Protection of Textile Fabrics 169</p> <p>7.2.1 The Design of the Woven Support Represents a Relevant Factor That Directly Affect UPF 171</p> <p>7.2.2 The Synergism Between Structural Parameters and UV Protection of Textile Supports 172</p> <p>7.2.3 Yarn Curve End up Being the Significant Determinant of the UV Security Attributes of Textile Supports 172</p> <p>7.2.4 The Correlation Between Fabric Porosity and Cover Factor and UV Protection 172</p> <p>7.2.5 Concepts of Ultraviolet Protection Factor and Sun Protection Factor 173</p> <p>7.3 UV Stabilizers Beginnings and Initial Development 178</p> <p>7.3.1 UV Protection Finishing of Fabrics Using Nanoparticles 178</p> <p>7.3.1.1 Inorganic Formulations With Nano-ZnO Particles 178</p> <p>7.3.1.2 UV Shield of Cotton Support Conferred by TiO2 Nanoparticles 179</p> <p>7.3.1.3 Formulations Containing Nanoparticles of ZnO, Titania, Silica, Silver, Carbon-Nanotubes, Graphene and Silver Onto Cotton Textiles 180</p> <p>7.3.2 UV Protection of Fabrics by Dyeing of Textile Supports 181</p> <p>7.3.3 Other Kind of Finishes 182</p> <p>7.4 Conclusion 182</p> <p>References 188</p> <p><b>8 Synthetic and Natural UV Protective Agents for Textile Finishing 207<br /></b><i>Iftay Khairul Alam, Nazia Nourin Moury and Mohammad Tajul Islam</i></p> <p>8.1 Introduction 207</p> <p>8.2 Ultraviolet Radiation (UVR) 208</p> <p>8.3 Importance of Ultraviolet Protective Finish 209</p> <p>8.3.1 Ultraviolet Protection With Textiles 211</p> <p>8.4 Methods of Blocking Ultraviolet Rays 212</p> <p>8.5 Ultraviolet Protection Factor Measurement System 214</p> <p>8.5.1 <i>In Vitro </i>214</p> <p>8.5.2 <i>In Vivo </i>215</p> <p>8.6 Clothing Factors Affecting Ultraviolet Protection Factor 216</p> <p>8.6.1 Fabric Structure 217</p> <p>8.6.2 Fiber Physio-Chemical Nature 218</p> <p>8.6.3 Dyeing 218</p> <p>8.7 Mechanisms of UV Protection 220</p> <p>8.8 Types of Ultraviolet Absorbers 223</p> <p>8.8.1 Organic 223</p> <p>8.8.2 Inorganic 223</p> <p>8.9 Commercial Ultraviolet Protective Clothing 225</p> <p>8.10 Nanoparticle Coatings for Ultraviolet Protective Textiles 226</p> <p>8.11 Durability of Ultraviolet Protective Finish 228</p> <p>8.12 Conclusion 231</p> <p>References 232</p> <p><b>9 Sustainable Orientation of Textile Industry Companies 237<br /></b><i>Gherghel Sabina</i></p> <p>9.1 Introduction 238</p> <p>9.2 Textile Industry—Environmental, Social and Economic Issues 239</p> <p>9.3 Circular Economy 243</p> <p>9.4 Sustainability Circles 244</p> <p>9.5 Circularity in the Supply Chain 245</p> <p>9.6 Consumer Behavior of Sustainable Textile Products 247</p> <p>9.7 Decision to Purchase Sustainable Textile Products 248</p> <p>9.8 Policies and Strategies Used in the Sustainable Textile Industry 249</p> <p>9.9 Conclusions 250</p> <p>References 250</p> <p><b>Part 3: Sustainable Wastewater Remediation 253</b></p> <p><b>10 Sustainable Application of Ionic Flocculation Method for Textile Effluent Treatment 255<br /></b><i>Hamadia Sultana, Muhammad Usman, Abdul Ghaffar, Tanveer Hussain Bokhari, Asim Mansha and Amnah Yusaf</i></p> <p>10.1 Introduction 255</p> <p>10.2 Conventional Methods for Degradation of Textile Effluents 256</p> <p>10.2.1 Biological Methods 257</p> <p>10.2.2 Chemical Methods 257</p> <p>10.2.3 Physical Methods 257</p> <p>10.3 Surfactants 258</p> <p>10.4 Adsorptive Micellar Flocculation (AMF) 260</p> <p>10.5 Mechanism 260</p> <p>10.6 Choice of Flocculant 261</p> <p>10.7 Analysis and Calculations 262</p> <p>10.7.1 Analysis of Reagents 262</p> <p>10.7.2 Calculated Parameters 262</p> <p>10.8 Optimization of Conditions for Better Removal of Dye Using AMF 264</p> <p>10.8.1 Effect of Temperature 264</p> <p>10.8.2 Effect of pH 264</p> <p>10.8.3 Surfactant Dosage 265</p> <p>10.8.4 Flocculant/Surfactant Ratio 265</p> <p>10.8.5 Addition of Electrolyte 265</p> <p>10.8.6 Contact Time and Stirring Speed 266</p> <p>10.9 Potential Advantages of AMF 266</p> <p>10.10 Application to Wastewaters 266</p> <p>10.11 Conclusion 267</p> <p>10.12 Future Prospective 267</p> <p>References 268</p> <p><b>11 Remediation of Textile Wastewater by Ozonation 273<br /></b><i>Astha Gupta, Suhail Ayoub Khan and Tabrez Alam Khan</i></p> <p>11.1 Introduction 273</p> <p>11.2 Sources of Wastewater 274</p> <p>11.3 Ozonation Remediation for Textile Water 275</p> <p>11.3.1 Impact of pH on Uptake of Organic Pollutants 276</p> <p>11.3.2 Impact of Initial Dye Concentration 277</p> <p>11.3.3 Impact of Inlet Ozone Concentration 278</p> <p>11.3.4 Impact of Ozonation Time 278</p> <p>11.4 Impact of Various Techniques in Combination Ozonation Process for Treatment of Textile Wastewater 279</p> <p>11.5 Degradation of Dyes via Ozonation 279</p> <p>11.6 Conclusion 281</p> <p>References 281</p> <p><b>12 Design of a New Cold Atmospheric Plasma Reactor Based on Dielelectric Barrier Discharge for the Treatment and Recovery of Textile Dyeing Wastewater: Profoks/CAP Reactor 285<br /></b><i>Lokman Hakan Tecer and Ali Mutlu Gündüz</i></p> <p>12.1 Introduction 286</p> <p>12.2 Advanced Oxidation Processes (AOP) in Wastewater Treatment 287</p> <p>12.2.1 Cold Atmospheric Plasma Technology (CAP) 288</p> <p>12.2.2 Formation and Chemical Reactivity of Reactive Oxygen Species (ROS) 289</p> <p>12.2.3 CAP/AOP Application in Textile Wastewater Treatment 291</p> <p>12.3 Profoks/CAP Wastewater Treatment and Water Recovery System 293</p> <p>12.3.1 Profoks/CAP Wastewater Treatment and Water Recovery System and Textile Wastewater Recovery Studies 296</p> <p>12.3.2 Profoks/CAP Wastewater Treatment and Water Recovery System and the Results of Treatability of Textile Wastewater and the Study of Water Recovery 296</p> <p>12.3.3 Profoks/CAP Wastewater Treatment and Water Recovery System Investment and Operating Costs 299</p> <p>12.4 Conclusion 301</p> <p>References 302</p> <p><b>13 Nanotechnology and its Application in Wastewater Treatment 307<br /></b><i>Nitu Singh, Manzoor Ahmad Malik and Athar Adil Hashmi</i></p> <p>13.1 Introduction 308</p> <p>13.2 Nanotechnology 309</p> <p>13.2.1 Adsorption 309</p> <p>13.2.1.1 Carbon-Based Nanoadsorbents 310</p> <p>13.2.1.2 Metal-Based Nanoadsorbents 312</p> <p>13.2.1.3 Polymeric Nanoadsorbents 313</p> <p>13.2.1.4 Zeolites 314</p> <p>13.2.2 Membrane-Based Techniques 314</p> <p>13.2.2.1 Nanofiber Membranes 315</p> <p>13.2.2.2 Nanocomposite Membranes 316</p> <p>13.2.2.3 Thin Film Nanocomposite Membranes 317</p> <p>13.2.2.4 Nanofiltration Membranes 317</p> <p>13.2.2.5 Aquaporin-Based Membranes 318</p> <p>13.2.3 Metal Nanoparticles 319</p> <p>13.2.3.1 Silver Nanoparticles 319</p> <p>13.2.3.2 Iron Nanoparticles 319</p> <p>13.2.3.3 Titanium Dioxide Nanoparticles 320</p> <p>13.3 Conclusion 320</p> <p>References 321</p> <p>Index 333</p>

<p><b>Luqman Jameel Rather</b> is working as senior visiting scholar at the State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing, P.R. China. He earned his doctorate degree in Organic Chemistry from Jamia Millia Islamia, New Delhi, India in 2017. He has published about 50 research publications in high impact scientific journals of international repute and has been awarded the Young Scientist Award through the National Agriculture Development Agency, India. His research is focused on functional finishing of textile materials.</p> <p><b>Mohd Shabbir</b> joined Wuhan Institute of Technology, School of Chemical Engineering and Pharmacy in September 2019 as a postdoctoral researcher. Prior to that he had been working as an assistant professor in the Department of Chemistry, Sanskriti ­University (Mathura/India), and NIET, greater Noida, India. He obtained his PhD in 2017 from Jamia Millia Islamia, New Delhi, India. He has edited two books with the Wiley-­Scrivener imprint. <p><b>Aminoddin Haji</b> obtained his PhD from Amirkabir University of Technology, Tehran, Iran. He is an assistant professor in the Department of Textile Engineering, Yazd ­University, Iran. His area of interest is surface modification of textiles; natural and synthetic dyeing of textiles and nanotechnology in textiles and wastewater treatment. He has published more than 50 papers in international journals (ISI and Scopus) and presented more than 50 papers in international conferences.

<p><b>The book presents the various research areas dealing with the application of different sustainable technologies for enhancing the dyeing and comfort properties of textile materials with substantial reduction in wastewater problems.</b></p> <p>Increasing environmental and health concerns in the textile industry and fashion sector about the use of large quantities of water and hazardous chemicals in conventional textile finishing processes, has led to the design and development of new dyeing strategies and technologies. Effluents produced from the textile wet processing industry are very diverse in chemical composition, ranging from inorganic finishing agents, surfactants, chlorine compounds, salts and total phosphate to polymers and organic products. This has forced Western countries to exploit their high technical skills for the advancement of textile materials with high quality technical performances, and the development of cleaner production technologies for cost-effective and value-added textile materials. <p><b><i>Sustainable Practices in the Textile Industry</b></i> focuses on the sophisticated methods for improving dye extraction and dyeing properties which will minimize the use of bioresource products. This book also brings out the innovative ways of wet chemical processing to alleviate the environmental impacts arising from this sector. The book also discusses innovations in eco-friendly methods for textile wet processes and applications of enzymes in textiles in addition to the advancements in the use of nanotechnology for wastewater remediation. <p><b>Audience</b><br> Researchers, engineers in the textile industry, textile chemistry and dyeing, chemical engineering, environmental science, and materials science as well as graduate and postgraduate students, will find this book invaluable.

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