Fully polyester fabric is widely used in printed home textiles, sportswear, outdoor luggage, industrial filter cloth, etc. Polyester itself does not mold, but the residues of sizing, dyes, and oils left from printing and dyeing will cause mold growth in the fabric during high-temperature and high-humidity storage, ocean transportation, and rainy seasons, resulting in mold spots on the fabric surface, color bleeding on the printing, fabric odor, and decreased color fastness, leading to batch returns and losses.

In the textile industry chain, yarn, as the core semi-finished product, its quality directly determines the quality of subsequent fabrics and finished products. However, the high-temperature and high-humidity storage environment, the moisture in the containers during long-distance shipping, and the humid air during the southern rainy season all make it easy for yarn to develop mold - mild cases include mold spots, yellowing, and odors, while severe cases can lead to fiber brittleness, a sudden drop in strength, and even result in batch returns and brand losses. Textile yarn anti-mold agents, as targeted protective additives, have become a key choice for textile enterprises to control losses, stabilize quality, and adapt to export standards.