Casual Sports Shorts are easily stained with sweat, dandruff, etc. during daily wear, providing a breeding ground for bacteria, so the antibacterial function is increasingly valued. However, its effectiveness after multiple washings deserves further discussion.
First, the realization of the antibacterial function usually depends on special antibacterial agent treatment. Some of these antibacterial agents are fixed on the fabric fibers by chemical bonding, while others are physically adsorbed. In the early stage of washing, antibacterial agents with relatively stable chemical bonds can better resist the impact of water flow and the effect of detergents, so that the shorts maintain a certain antibacterial property. For example, some shorts using silver ion antibacterial technology, silver ions and fibers form a strong bond, and can still inhibit the growth and reproduction of common bacteria such as Escherichia coli and Staphylococcus aureus after multiple gentle washings. However, if the washing method is improper, such as using strong detergents, high temperature and long-term soaking or strong rubbing, this chemical bond may be destroyed, causing the antibacterial agent to fall off, and the antibacterial function will be weakened.
Secondly, the increase in the number of washing times is undoubtedly a severe test for the antibacterial function of shorts. As the number of washings increases, even the antibacterial agents with stronger bonds will gradually wear out. Studies have shown that after 20-30 regular washes, the antibacterial rate of some casual sports shorts will drop from more than 90% to about 70%-80%. This is because each wash will take away a small amount of antibacterial agent, and the antibacterial ingredients will be decomposed due to factors such as light and oxidation during drying and storage. For example, some shorts containing organic antibacterial agents will have a more obvious decline in antibacterial performance under long-term light exposure, and the antibacterial effect may be greatly reduced after 15-20 washes.
In addition, the characteristics of the fabric itself will also affect the persistence of the antibacterial function after washing. For example, cotton fabrics are relatively loose, and antibacterial agents are easily washed off during washing; while polyester fabrics have a relatively tight structure, which can slow down the loss rate of antibacterial agents to a certain extent. However, if softeners are added during washing, a film may be formed on the surface of the fabric, affecting the activity of the antibacterial agent, resulting in the antibacterial effect not being as expected even if the antibacterial agent is not lost in large quantities.
Whether the antibacterial function of casual sports shorts can continue to be effective after multiple washings is affected by many factors, including the combination of antibacterial agents and fabrics, the number of washings, washing methods, fabric characteristics, and subsequent treatments. In order to maintain its antibacterial properties, consumers should choose the appropriate washing method according to the product instructions and avoid over-washing and improper treatment. Only in this way can casual sports shorts continue to play an antibacterial role for a longer period of time and ensure health and comfort when wearing them.
