Can polyester yarn be washed at high temperatures?

Polyester yarn is generally not recommended for high-temperature washing. Although polyester has certain heat resistance, with a melting point of around 255 ℃, prolonged exposure to high temperatures can lead to fiber performance degradation, such as hardening, brittleness, loss of elasticity, and even slight shrinkage or gloss changes. It is recommended to control the washing temperature below 40 ℃, with a maximum of 60 ℃, to ensure that the structure and appearance of the fabric are not affected. In home cleaning, using warm water combined with neutral detergent can remove most stains without relying on high temperatures. For some application scenarios that require special disinfection, such as medical cloths, cleaning cloths, etc., if high temperatures must be used for cleaning, it is recommended to use short-term hot water washing or low-temperature steam treatment, and ensure that the washing process is controlled to avoid temperatures exceeding their tolerance range for a long time. Attention should also be paid to avoiding the use of chlorine bleach or strong alkaline detergents, as these chemicals can exacerbate damage to polyester fibers at high temperatures. If cleaning polyester yarn products in industrial washing equipment, it is best to follow the product label or manufacturer's technical instructions to avoid affecting the strength, softness, or color stability of the fabric due to improper washing conditions. In order to extend the service life of polyester yarn products and maintain their performance, high-temperature washing should be avoided as much as possible, unless it has been professionally treated or clearly marked to withstand high temperatures.