Meisterprüfung Kleidermacher Practice Questions - Meisterprüfung Kleidermacher (Austria) Exam

The kidney-shaped, twisted cotton fibers swell into a smooth, cylindrical shape with a rounded cross-section, increasing tensile strength, luster, and dye uptake. The natural cotton wax is completely oxidized by sulfuric acid, converting the cotton into a flame-retardant regenerated cellulose. The hydrogen bonds between cellulose chains are permanently dissolved, transforming the cotton into a thermoplastic synthetic fiber. The cellulose fibrils are coated with polyurethane resin to produce permanent water impermeability.