1. Buying skills:
1. Look at the protection level sign. The "Assessment of Anti-UV Performance of Textiles" promulgated by the General Administration of Quality Supervision, Inspection and Quarantine stipulates that only when the value of the UV protection coefficient is greater than 30 and the transmittance of long-wave ultraviolet rays is less than 5%, it can be called anti-ultraviolet products.
2. Look at the fabric properties of the umbrella surface. Generally speaking, cotton, silk, nylon, etc. have poor UV protection, while polyester is better. In addition, the anti-ultraviolet performance of satin fabric is the best, followed by twill and plain weave, the darker the better.
3. Look at the quality of the umbrella surface. When purchasing an anti-ultraviolet umbrella, you should pay attention to the quality of the umbrella surface. Umbrellas with thin and sparse fabrics generally have poor anti-ultraviolet ability; the darker the fabric, the better the anti-ultraviolet ability. In addition, the price mainly depends on the material and style of the umbrella rib.
2. How to identify and use:
1. The surface material of the sun umbrella, cotton, silk and nylon fabrics are not as good as polyester, it is best to choose the fabric that is tight, the sun umbrella surface satin fabric is the best, then the twill and plain weave, the sun umbrella surface should be large and not small, The darker the fabric, the better.
2. Rainwater has a corrosive effect on the sunscreen coating of the sun umbrella. In order to maintain the sunscreen performance of the sun umbrella, it must be used separately from the umbrella. If the umbrella surface is dirty, you can use a soft brush dipped in water to gently scrub, but not by hand, and do not wash it too often, otherwise it will also affect the sunscreen effect.
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