Table of contents : Front Cover......Page 1 Science for Students of Leather Technology......Page 4 Copyright Page......Page 5 Table of Contents......Page 6 Foreword......Page 10 CHAPTER 1. Introduction......Page 12 ATOMS......Page 16 BONDS BETWEEN ATOMS......Page 17 CO-ORDINATION COMPOUNDS......Page 20 BONDS BETWEEN MOLECULES......Page 21 WATER......Page 23 AQUEOUS SOLUTIONS......Page 24 ACIDS AND BASES......Page 28 BUFFERS......Page 44 INDICATORS......Page 47 DIFFUSION......Page 50 SWELLING......Page 52 INTRODUCTION......Page 60 TYPES OF MACROMOLECULES......Page 61 PROTEINS......Page 83 POLYSACCHARIDES OR CARBOHYDRATES......Page 95 SIMPLE LIPIDS......Page 119 THE FATTY ACIDS......Page 120 THE DEGREE OF UNSATURATION......Page 122 LIPIDS AND THEIR PROPERTIES......Page 123 HYDROLYSIS (SAPONIFICATION)......Page 124 THE REACTION OF OILS WITH SULPHURIC ACID......Page 125 THE REACTION OF OILS WITH SALTS OF SULPHUROUS ACID......Page 126 OXIDATION AND POLYMERIZATION REACTIONS OF UNSATURATED LIPIDS......Page 127 SURFACE AND INTERFACIAL TENSIONS......Page 131 ADHESION AND COHESION......Page 133 SOLUTIONS......Page 136 SURFACE-ACTIVE AGENTS......Page 137 EMULSIONS......Page 141 CHAPTER 6. Skin Structure and the Chemistry of Collagen......Page 145 THE HISTOLOGICAL STRUCTURE OF MAMMALIAN SKIN......Page 146 THE EPIDERMIS......Page 148 THE DERMIS......Page 154 THE CHEMISTRY OF COLLAGEN......Page 163 INSECTS IN RELATION TO LEATHER PRODUCTION......Page 171 MICRO-ORGANISMS AND LEATHER PRODUCTION......Page 180 CHAPTER 8. The Chemistry of Mineral Tannage......Page 198 MASKING AND MASKED SOLUTIONS......Page 205 SUBSTITUTED MONOCARBOXYLIC ACIDS......Page 208 TANNAGE AS COMPLEX FORMATION INVOLVING MASKING......Page 209 THE COMPOSITION OF CHROME-TANNING MATERIALS......Page 210 PARTICLE SIZE DETERMINATION......Page 213 USE OF ION-EXCHANGE RESINS......Page 215 CONDUCTIVITY STUDIES......Page 216 STUDIES OF COMPLEXES BASED ON pH DETERMINATION......Page 217 SPECTROPHOTOMETRIC METHODS......Page 219 REACTION BETWEEN CHROMIUM COMPLEXES AND CHEMICALLY MODIFIED COLLAGEN......Page 221 THE KINETICS OF CHROME COMPLEX FORMATION AND CHROME TANNING......Page 223 TWO-BATH CHROME TANNING......Page 224 VEGETABLE TANNINS......Page 229 SYNTANS......Page 242 INTRODUCTORY THEORY OF TANNAGE WITH VEGETABLE AND SYNTHETIC TANNINS......Page 248 DYESTUFFS......Page 251 PIGMENTS......Page 277 Index......Page 282