STUDY ABOUT POLYMER APPLICATIONS IN FOOTWEAR Md. Majbaur Rahman Khan Degree Thesis Plastics Technology 2015 1 Contents INTRODUCTION ................................................................................................................................................. 7 OBJECTIVES- Objectives of the study are .......................................................................................................... 8 Chapter 1 ........................................................................................................................................................... 9 1. What is footwear? ......................................................................................................................................... 9 1.2 CLASSIFICATION OF FOOTWEAR- .............................................................................................................. 10 1.2.1 Men's Shoes ........................................................................................................................................ 10 1.2.2 Women's Shoes .................................................................................................................................. 13 1.2.3 UNISEX SHOES .................................................................................................................................... 16 1.2.4 ATHLETES FOOTWEAR AND KEDS ....................................................................................................... 16 1.2.5 SPECIAL FOOTWEAR, LIKE DIABETES FOOTWEAR .............................................................................. 17 Chapter 2 ......................................................................................................................................................... 18 2.1 VARIOUS PARTS OF FOOTWEAR- ............................................................................................................... 18 2.2 Description about main various parts of footwear: .................................................................................. 20 2.3 ATHLETIC SHOES: ....................................................................................................................................... 21 CHAPTER 3 ....................................................................................................................................................... 23 3.1What makes a shoe costly and where the cost goes? ................................................................................ 23 3.2How to make a shoe- .................................................................................................................................. 24 CHAPTER 4 ..................................................................................................................................................... 26 4.1 FOOTWEAR MATERIALS- ........................................................................................................................... 26 4.2 SYNTHETIC POLYMERS AS A FOOTWEAR MATERIAL- ................................................................................ 27 4.3 Last ............................................................................................................................................................. 31 4.3.1 Types of shoe last ............................................................................................................................... 32 4.4 Materials those are used in last making .................................................................................................... 34 CHAPTER 5 ....................................................................................................................................................... 35 5.1 What is an adhesive? ................................................................................................................................. 35 5.1.1 What is solvent based adhesive? ....................................................................................................... 36 5.1.2 What is Water based adhesive? ......................................................................................................... 36 5.1.3 What is hot melt adhesives? .............................................................................................................. 36 5.2 Some very important process to make the adhesive bond very effective. ............................................... 37 5.3 Mechanism of adhesive ............................................................................................................................. 38 5.4 Adhesive Bonding Process ......................................................................................................................... 39 5.5 Theories of adhesives- ............................................................................................................................... 40 5.5.1 Mechanical Theory ............................................................................................................................. 40 2 5.5.2 Electrostatic (Electronic) Theory ........................................................................................................ 40 5.5.3 Diffusion Theory ................................................................................................................................. 41 5.5.4 Wetting Theory ................................................................................................................................... 41 5.5.5 Chemical Bonding ............................................................................................................................... 42 5.5.6 Weak Boundary Layer Theory ............................................................................................................ 42 5.6 Mechanisms of Bond Failure ..................................................................................................................... 43 5.7 Factors involved in producing satisfactory bond:...................................................................................... 44 CHAPTER 6 ....................................................................................................................................................... 45 6.1 What is bioactive insole? ........................................................................................................................... 45 6.2 Materials of bioactive insole ..................................................................................................................... 46 6.3 Lining materials- ........................................................................................................................................ 49 6.3.1Lining leather vegetable tanned- ........................................................................................................ 49 6.3.2 The most important quality requirements for shoe lining leathers-.................................................. 50 CHAPTER 7 ....................................................................................................................................................... 52 7.1water vapour permeability test for leather lining and insole- ................................................................... 52 7.2 Color rub fastness test for leather lining material. ................................................................................... 53 Discussion- ....................................................................................................................................................... 55 CHAPTER 8 ....................................................................................................................................................... 56 8.1Recycling of footwear: ................................................................................................................................ 56 8.2NIKE about recycling footwear ................................................................................................................... 56 8.3Timberland about recycling: ....................................................................................................................... 56 Conclusion ....................................................................................................................................................... 58 References- ...................................................................................................................................................... 59 3 List of figures Figure 1:history of footwear .............................................................................................................................. 9 Figure 2 : oxford shoes .................................................................................................................................... 10 Figure 3 : derby shoes ...................................................................................................................................... 10 Figure 4 : monk shoe ....................................................................................................................................... 11 Figure 5 : Brogues shoe ................................................................................................................................... 11 Figure 6 : slip on shoes ...................................................................................................................................