The swimsuit factory believes that the dyed swimsuits, after multiple washes and long-term exposure to sunlight, cause the dyes on the clothes to undergo photodegradation and aging, resulting in fading of the clothes.

When sunlight shines on the dyed swimwear factory swimwear, light energy stimulates the activity of dye molecules. Active dye molecules can react with chemically active substances by first reacting with oxygen in the air. The presence of water can promote the intensity of the chemical reaction.

Due to the oxidation or reduction reaction of dye molecules, the dyed swimwear factory swimwear undergoes discoloration. If cotton fiber fabric dyed with azo dyes undergoes sun fading, it is the result of oxidation, while protein fiber fabric dyed with the same dye undergoes sun fading, it is the result of reduction.

So, products from different parts, like clothing culture, also have inherent cultural, artistic, color, and fashion trends.

In short, the reason for fading depends on the affinity of the dye to the fabric fibers, as well as various factors such as dye concentration, spectral characteristics, dry humidity, and chemical structure of the dye. It is not difficult to see that the main reason for the fading of dyed swimwear in a swimwear factory is determined by the characteristics of the dye. Improving and optimizing the performance of dyes is an important means to overcome the fading of dyed swimwear in swimwear factories.