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Granularity significantly affects the wettability of the surface of the cocoon. The higher the height of the cocoon tubercles and the greater the wetting angle. Roughness fluctuations are insignificant for different hybrids, but they differ in shell layers. SAS solutions help change the polarity of the contact zone of the surface of the threads with the liquid, thereby changing the surface structure, increasing its hydrophobicity, thereby reducing surface tension and improving wettability and water permeability.