Anti-ultraviolet sewing thread, as the name implies, is a functional sewing thread that can resist ultraviolet radiation.
Because sunlight contains a large amount of ultraviolet light harmful to colored objects, its wavelength is about 280-400 nanometers, these harmful ultraviolet light will decompose and fade the color molecules through a chemical redox reaction, and will also make yarn The thread ages rapidly and its strength suffers.
Anti-UV sewing thread can reduce the absorption of ultraviolet rays to a certain extent, prevent the degradation and aging of sewing thread, ensure the maintenance of yarn mechanical properties (such as breaking strength), and also improve the light fastness of yarn. Can be widely used in military protective clothing, outdoor tents, umbrellas, beachwear, swimwear, hats, outdoor sun protection clothing, and other products that are often exposed to the sun to enhance the service life of outdoor products.
Basics of anti-UV sewing thread
- Test method: The test method is that the fading rate of ultraviolet light is less than 10% after 500 hours of continuous irradiation;
- Production method: The production method is that after the sewing thread is successfully dyed, it is processed by adding an anti-UV treatment process, and then baked at high temperature;
- Effect: Anti-UV sewing thread can block the damage of ultraviolet rays to the sewing thread to a certain extent, thereby prolonging the service life of the sewing thread.
Pros and Cons of anti-UV sewing thread
- Advantages of anti-UV sewing thread: It is suitable for sewing outdoor products such as trampolines in the park, awnings, umbrellas, and other appliances and products that are often exposed to the sun, so as to enhance the service life of outdoor products.
- Anti-UV sewing thread also has disadvantages: same as the dyeing principle, anti-UV molecules must penetrate into the sewing thread and stay to achieve the anti-UV effect, which will inevitably interact and resist dyeing molecules, resulting in a decrease in color fastness. In dark colors such as black, the color fastness is often difficult to reach level 4 or above. This requires additional special processes to ensure color fastness.