Sunscreen clothing is a special clothing made of high-quality polyester fiber, which mainly has the functions of sun protection, ultraviolet protection, wind and water resistance, and breathability.
First, the production process
1. Original yarn
Sunscreen raw materials are added to the yarn and then spun to make fabrics. Durable, washable, stable quality, long-lasting anti-ultraviolet effect, but easy to wrinkle, the texture is thinner and higher.
2. Dyeing auxiliaries
The fabric is impregnated with ultraviolet absorbers to meet the needs of UV resistance before drying. **Moderate, breathable, but sun protection decreases with the number of washes.
3. Coating process
The fabric undergoes a secondary process and is coated with a film of ultraviolet release agent on the surface. Sunscreen is very good, cheap, but it is poorly breathable, stuffy, not durable, and may contain some harmful substances such as formaldehyde.
2. Selection skills
1. Look at the sun protection index
Generally, there will be a sunscreen logo or UPF value on the tag of the general sunscreen clothing, the larger the UPF value, the better the sunscreen effect, in addition to UPF, you can also see the UVA value, less than 5% indicates that the sunscreen effect is very good.
2. Choose a color
Preference is given to some colors with low light transmittance, such as red, dark blue, black, etc. However, it should be noted that black has the strongest heat absorption, and it may be stuffy to wear, although white does not absorb heat, but the protection against ultraviolet rays is very low.
3. Pick fabrics
The market is generally made of nylon and polyester (polyester fiber). Nylon is lighter, thinner, more breathable and cool, but the sunscreen effect is not as good as polyester, although polyester has a better sunscreen effect, it is heavier and easy to sweat.
4. Scene function
Some waterproof and windproof functions are suitable for outdoor fishing, camping and other scenes without large exercise, and some scenes that are easy to sweat such as running and cycling give priority to choosing sunscreen clothing with good breathability, and keep it dry quickly after exercise.
3. Key knowledge
1. The principle of sunscreen
Shielding principle and absorption principle. One is to enhance the reflection and scattering of ultraviolet rays by fabrics, and the other is to enhance the absorption of ultraviolet rays by converting energy into heat energy release or harmless low-energy radiation after ultraviolet absorption.
2. Washing method
It is recommended to wash by hand, and it should be gentle when washing, and it is not advisable to scrub, iron, wring it out vigorously, let it dry naturally, and avoid using disinfectants, bleach, and other functional detergents when washing, and the sunscreen performance will slowly decrease with use (and in the case of stretching or wet, etc.).
3. National standards
Priority is given to products that meet the national sunscreen standard GB T 18830-2009. Only when the UPF value of sunscreen clothing is greater than 40 and the UVA transmittance is less than 5%, it can be recognized as a UV protection product.
Conclusion
Sun-protective clothing is not only a must-have equipment for summer, but also the guardian of our skin. It uses advanced technology to provide us with all-round protection by combining multiple functions such as sun protection, wind protection, water resistance and breathability. At the same time, its stylish design also allows us to express our personality and taste while enjoying outdoor activities. So, the next time you go out, you might as well prepare yourself with a sun-protective clothing so that the sun is no longer a threat to your skin.