Titlebook: Quality Assessment of Textiles; Damage Detection by Karl Mahall Book 2003Latest edition Springer-Verlag Berlin Heidelberg 2003 Faserstoff.

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Streaks and Bars in Textile Fabrics Due to Yarn Differences and Technological Reasons,lly illustrated in Fig. 173 and 174. However, luster differences between more or less intensively twisted yarns can lead to differences in lightness [44]. There are several possibilities for macroscopic and/or microscopic detection of yarn differences:

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Fundamentals and Priming,has different effects and greatly reduces the serviceability of the textiles. Usually the cause of damage cannot be determined by purely visual evaluation. Textile microscopy, in contrast, often provides exact results within a very short time, which can be decisive in the correction of future produc

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Chemical Damage,om this, structural abnormalities, i. e. damage, can be detected quite easily under the microscope. Staining reactions with Cotton Blue-lactophenol [11], Neocarmin W (Fesago, Heidelberg) or Pauly reagent [12] simplify the recognition of wool damage. With Cotton Blue-lactophenol, damaged wool fibers

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Mechanical Damage,recognized in a later finishing stage when large quantities of material have already been damaged. Natural fibers and cellulose regenerated fibers are more susceptible to mechanical damage than synthetics; however, synthetics also suffer damage.

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Thermal and Thermo-Mechanical Damage to Synthetics,ent in the thermoplastic range cannot be avoided during manufacturing, finishing and garment production. Irreversible damage can only be prevented if the softening range of the fiber polymers is considered thoroughly. In addition, synthetics can suffer irreversible deformation during all processes w

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Other Defects in the Quality of Textiles,ng causes which (as experience shows) can almost certainly be detected by microscopic examination. In practice, other defects occur which can be caused by various chance events. To determine the causes of these defects in finished textiles, considerable experience, a “criminalistic” intuition and th

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