VI Contents 3.7 Sources of further information and advice 5 3.8 References 7 4 Properties of composite nonwovens 58 D.DAs,Indian Institute of Technology Delhi,India 4.1 Introduction 58 4.2 Mechanical properties of composite nonwovens 58 4.3 Fluid permeability of composite nonwovens 60 4.4 Thermal properties of composite nonwovens 64 4.5 Liquid sorption characteristics of composite nonwovens 65 4.6 Particle filtration behaviour of composite nonwovens 66 4.7 Conclusion 71 4.8 Sources of further information and advice 71 4.9 References 1 5 Composite nonwovens in absorbent hygiene products 74 D.DAS,Indian Institute of Technology Delhi,India 5.1 Introduction 74 5.2 Key material requirements 5 5.3 Baby diapers 76 5.4 Feminine sanitary pads 81 5.5 Adult incontinence pads 84 5.6 Conclusion and future trends 86 5.7 Sources of further information and advice 87 5.8 References 87 6 Composite nonwovens in wipes 89 R.S.RENGASAMY,Indian Institute of Technology Delhi,India 6.1 Introduction 89 6.2 Materials in wipes 90 6.3 Wet wipes 91 6.4 Web forming technologies for wipes 92 6.5 Web bonding processes for wipes 95 6.6 Surface texturing of wipes 6 6.7 Composite nonwoven wipes 97 6.8 Multi-fibre composite nonwoven wipes 98 6.9 Multilayer composite latex bonded nonwoven wipes 100 6.10 Hydroentangled(spunlaced)multilayer composite nonwoven wipes 100 6.11 Thermobonded multilayer composite nonwoven wipes 109 6.12 Needlepunched composite nonwoven wipes 112 6.13 Other multilayer nonwoven wipes 113vi Contents 3.7 Sources of further information and advice 56 3.8 References 57 4 Properties of composite nonwovens 58 D. DAS, Indian Institute of Technology Delhi, India 4.1 Introduction 58 4.2 Mechanical properties of composite nonwovens 58 4.3 Fluid permeability of composite nonwovens 60 4.4 Thermal properties of composite nonwovens 64 4.5 Liquid sorption characteristics of composite nonwovens 65 4.6 Particle fi ltration behaviour of composite nonwovens 66 4.7 Conclusion 71 4.8 Sources of further information and advice 71 4.9 References 71 5 Composite nonwovens in absorbent hygiene products 74 D. DAS, Indian Institute of Technology Delhi, India 5.1 Introduction 74 5.2 Key material requirements 75 5.3 Baby diapers 76 5.4 Feminine sanitary pads 81 5.5 Adult incontinence pads 84 5.6 Conclusion and future trends 86 5.7 Sources of further information and advice 87 5.8 References 87 6 Composite nonwovens in wipes 89 R. S. RENGASAMY, Indian Institute of Technology Delhi, India 6.1 Introduction 89 6.2 Materials in wipes 90 6.3 Wet wipes 91 6.4 Web forming technologies for wipes 92 6.5 Web bonding processes for wipes 95 6.6 Surface texturing of wipes 96 6.7 Composite nonwoven wipes 97 6.8 Multi- fi bre composite nonwoven wipes 98 6.9 Multilayer composite latex bonded nonwoven wipes 100 6.10 Hydroentangled (spunlaced) multilayer composite nonwoven wipes 100 6.11 Thermobonded multilayer composite nonwoven wipes 109 6.12 Needlepunched composite nonwoven wipes 112 6.13 Other multilayer nonwoven wipes 113