The cleaning method for blended yarns should be determined based on their fiber composition, as different fibers vary significantly in their tolerance to temperature, detergents, and mechanical action. Generally, neutral or mildly alkaline detergents are preferred; strong acids and alkalis should be avoided to prevent damage to the fiber structure or discoloration. Water temperature during cleaning should not be excessive-keeping it around 30°C is typically safer and helps maintain the yarn's original properties.
During the actual cleaning process, vigorous rubbing and prolonged soaking should be minimized. For yarns made from common blends such as cotton, polyester, or viscose, gentle hand washing or low-speed machine washing is suitable; high-speed spin-drying should be avoided to reduce the risk of fiber stretching or breakage. If the yarn is intended for textile production, care must also be taken to prevent tangling or knotting and to preserve the integrity of the yarn structure.
Post-cleaning care is equally important; yarns should be air-dried naturally or tumble-dried at low temperatures. Direct exposure to intense sunlight or high-heat drying should be avoided to prevent fiber shrinkage or degradation. Finally, ensure the yarn is completely dry before storage and keep it in a well-ventilated, dry environment to prevent moisture, mold, or unpleasant odors, thereby extending the yarn's service life.