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Full Description
With increased environmental awareness and rising costs, manufacturers are investing in real time monitoring and control of dyeing to increase its efficiency and quality. This book reviews ways of automating the dyeing process as well as ways of understanding key processes in dyeing, including dye transport in fluid systems. This understanding is then used to create models to simulate the dyeing process which can then be used to develop appropriate measurement and control systems. Control of variables such as temperature, pH, conductivity and dye concentration can then be used to ensure a more consistent and cost-effective dyeing process.
Contents
Dedication IDedication IIWoodhead Publishing Series in TextilesPrefaceDefinition of termsNomenclature1. Introduction to dyeing and dyehouse automation Abstract:1.1 Introduction1.2 Factors affecting dyeing quality1.3 Practical difficulties involved in dyeing process control1.4 Package dyeing machinery1.5 Difficulties in package dyeing1.6 Automation in the dyehouse1.7 References2. Principles underlying the dyeing process Abstract:2.1 Introduction2.2 Dye transport from the bulk solution to the fibre surface2.3 Adsorption of dyes by textile fibres2.4 Diffusion of the dye into the interior of the fibre2.5 Rate of dyeing2.6 References3. Dye transport in fluid systems Abstract:3.1 Introduction3.2 Fluid properties in perspective3.3 Flows in porous media3.4 Convective mass transfer in fluid system3.5 Dye transfer in dyeing3.6 References4. Developing theoretical models of dyeing Abstract:4.1 Introduction4.2 System description and basic assumptions4.3 Development of mathematical model4.4 References5. Solving dynamic equations in dye transport Abstract:5.1 Introduction5.2 Numerical methods5.3 Summary of the model equations5.4 Numerical solutions of equations5.5 References6. Simulation of the dyeing process Abstract:6.1 Introduction6.2 Fluid flow behaviour in dyeing6.3 Dynamic behaviour of mass transfer in package dyeing6.4 Conclusions from simulation results6.5 References7. Principles of control in dyeing processes Abstract:7.1 Introduction7.2 Introduction to process control7.3 Control algorithms7.4 Analog and digital processing7.5 Practical application in a pilot-scale operation7.6 pH measurement and control in a dyeing system7.7 The feed-forward control strategy7.8 Acknowledgement7.9 References8. Measurement and control of dyeing Abstract:8.1 Introduction8.2 Real-time measurement of dye concentration8.3 Data processing and tools to analyse and interpret real-time dye monitoring data8.4 Conclusion8.5 ReferencesIndex
