1 Fundamentals and Priming.- 1.1 Necessary Equipment.- 1.2 Preliminary Examination of Textile Test Material.- 1.3 Classical Examination Methods.- 1.4 Preparation of Negative Imprints with the Size of Microscope Slides.- 1.5 Preparation of Negative Imprints of Fibers and Yarns on Thermoplastic Films.- 1.6 Imprints of Larger Areas.- 1.6.1 Detection of Dyeing Unlevelness with the Aid of the Replication Method Practical Example.- 1.6.2 Detection of Oil and/or Grease Soiling on Textile Fabrics.- 1.6.3 Detection of Structural Defects Practical Example.- 1.6.4 Summarizing Evaluation of Large Imprints.- 1.7 Microtome Sections.- 2 Chemical Damage.- 2.1 Chemical Damage to Wool.- 2.1.1 The Pauly Reaction.- 2.1.2 Alkaline Damage to Wool and Wool-Like Natural Fibers.- 2.1.2.1 Dye Unlevelness in Wool Tops Made of Alkaline Damaged Wool Practical Example.- 2.1.2.2 Strength Loss in Wool, Caused by Alkalinely Reacting Untreated Yarn Practical Example.- 2.1.2.3 Dye Stains on Polyester/Wool Due to Local Alkaline Damage to the Wool Practical Example.- 2.1.2.4 Limits of the Pauly Reaction Strong Alkaline Damage.- 2.1.3 Acid Damage to Wool.- 2.1.4 Chlorine Damage to Wool.- 2.1.4.1 Chlorination of a Wool Carpet (Gold Afghan), Increase of Luster, Gold Effects Practical Example.- 2.1.4.2 Chlorination of Wool in the Non-Felting Finish.- 2.2 Chemical Damage to Silk.- 2.2.1 Chemical Composition, Structure and Microscopy of Silk.- 2.2.2 Detection of Chemical Damage to Silk with Pauly Reagent.- 2.2.3 Control of the Degumming Effect.- 2.3 Chemical Damage to Cotton.- 2.3.1 Microscopy of Cotton.- 2.3.2 Detection of Oxycellulose and Hydrocellulose.- 2.3.3 Bleaching Damage Due to Catalysts.- 2.3.4 Different Phenomena of Catalytic Bleaching Damage.- 2.3.4.1 Holes and Tears in a Bleached Cotton Fabric Practical Example.- 2.3.4.2 Small Holes in a Bleached Cotton Fabric Practical Example.- 2.4 Chemical Damage to Synthetics.- 2.4.1 Acid Damage to Polyamide Knitwear Practical Example.- 2l£5