Process Control in Textile Manufacturing

Complex raw materials and manufacturing processes mean the textile industry is particularly dependent on good process control to produce high and consistent product quality. Monitoring and controlling process variables during the textile manufacturing process also minimises waste, costs and environmental impact. Process control in textile manufacturing provides an important overview of the fundamentals and applications of process control methods.Part one introduces key issues associated with process control and principles of control systems in textile manufacturing. Testing and statistical quality control are also discussed before part two goes on to consider control in fibre production and yarn manufacture. Chapters review process and quality control in natural and synthetic textile fibre cultivation, blowroom, carding, drawing and combing. Process control in ring and rotor spinning and maintenance of yarn spinning machines are also discussed. Finally part three explores process control in the manufacture of knitted, woven, nonwoven textiles and colouration and finishing, with a final discussion of process control in apparel manufacturing.With its distinguished editors and international team of expert contributors, Process control in textile manufacturing is an essential guide for textile engineers and manufacturers involved in the processing of textiles, as well as academic researchers in this field.- Provides an important overview of the fundamentals and applications of process control methods- Discusses key issues associated with process control and principles of control systems in textile manufacturing, before addressing testing and statistical quality control- Explores process control in the manufacture of knitted, woven, nonwoven textiles and colouration and finishing, with a discussion on process control in apparel manufacturing

Contributor contact detailsWoodhead Publishing Series in TextilesForewordPart I: General issuesChapter 1: Basics of process control in textile manufacturingAbstract:1.1 Introduction1.2 Process mapping, analysis and control1.3 Statistical process control (SPC) and improving processes1.4 Future trendsChapter 2: Basic principles of control systems in textile manufacturingAbstract:2.1 Introduction2.2 Components of control systems2.3 The control system design process2.4 Digital control systems2.5 Intelligent control systems using soft computing2.6 Application of control systems in textile processingChapter 3: Testing and statistical quality control in textile manufacturingAbstract:3.1 Introduction: statistical quality control3.2 Basic measurement concepts in statistical quality control3.3 Interpretations: critical difference3.4 Interpretations: 't' tests, 'F' tests and the chi-square method3.5 Decision-making using control charts3.6 Decision-making: hypothesis testing3.7 Decision-making: significance testing3.8 Testing fibre and yarn properties3.9 Testing fabric propertiesRaw materialPart II: Process control in fibre production and yarn manufactureChapter 4: Process and quality control in cultivating natural textile fibresAbstract:4.1 Introduction4.2 Control of cotton fibre quality4.3 Indexes for cotton fibre quality4.4 Process control in harvesting4.5 Control of natural lignocellulosic/bast fibre quality: climatic conditions4.6 Process control in production4.7 Evaluating fibre quality4.8 Future trendsChapter 5: Process control in the manufacturing of synthetic textile fibresAbstract:5.1 Introduction5.2 Process control in polymerisation and fibre spinning5.3 Post-spinning process control: drawing and heat setting5.4 Key control points in synthetic fibre manufacture5.5 Future trendsChapter 6: Process control in blowroom and carding operationsAbstract:6.1 Introduction to blowroom operations6.2 General process control in the blowroom6.3 Process control in blowroom processes6.4 Process control in carding: control of process parameters6.5 Process control in carding: control of card clothing, wire maintenance and card waste6.6 Yarn count issues and other common process control problems for blowroom and carding operationsChapter 7: Process control in drawing, combing and speed frame operationsAbstract:7.1 Introduction7.2 Process control in drawing: key elements7.3 The impact of drawing on yarn quality7.4 Process control in drawing: common problems7.5 Process control in combing: key elements7.6 Process control in combing: the impact of combing on yarn quality and common problems arising from the process7.7 Process control in speed frame operations: key elements7.8 Process control in speed frame operations: the impact of speed frame operations on yarn quality and common defects related to the process7.9 Conclusions and future trends7.10 AcknowledgementChapter 8: Process control in ring and rotor spinningAbstract:8.1 Introduction8.2 Factors affecting spinning tension in ring spinning8.3 Control of end breakage rate in ring spinning8.4 Factors affecting end breakage rates in ring spinning8.5 Control of fly generation and twist variations in ring spinning8.6 Process control in rotor spinning8.7 Control of end breakage rate and twist loss in rotor spinning8.8 Future trendsChapter 9: Maintenance of yarn spinning machinesAbstract:9.1 Introduction9.2 Maintenance of spinning preparatory machines9.3 Maintenance of ring and rotor spinning machines9.4 Future trends9.5 Sources for further information and advicePart III: Process control in fabric manufacture, coloration and finishingChapter 10: Process control in knittingAbstract:10.1 Introduction10.2 Key control points in knitting10.3 Quality control of knitted fabrics10.4 Control of knitted loop length10.5 Common faults in knitted fabrics10.6 Other process control factors in knitting10.