Can an anti-ultraviolet sun umbrella really prevent ultraviolet rays?
Expert introduction: 1. When choosing the umbrella cover, the ultraviolet protection performance of umbrellas with obviously sparse fabrics and textiles is generally poor. 2. Because the fabric has the characteristic of shrinking, when buying a parasol, the umbrella cover should be large rather than small. 3. The color of the fabric is related to the anti-ultraviolet performance. Under the same conditions, the darker the color, the better the ultraviolet resistance of the fabric. In contrast, black, navy blue, dark green and light blue, light pink and light yellow have better ultraviolet resistance. 4. When the umbrella is wet, due to the light conduction of water, the ultraviolet transmittance increases and the protective effect decreases. Therefore, wet umbrellas are not suitable for ultraviolet protection. In the space where we live, ultraviolet rays will radiate to the human body from all angles, and the anti-ultraviolet sunshade can only block the ultraviolet rays radiated from the top of the head to the umbrella surface.
According to the national standard "Evaluation of Anti-ultraviolet Performance of Textiles", only UPF is greater than 30 and UVA transmittance is less than 5% can it be called anti-ultraviolet products, and the protection grade standard is "UPF 30+"; When the UPF is greater than 50, it shows that the product has excellent anti-ultraviolet performance, and the protection level is marked as "UPF50++". Consumers should carefully check the protection level mark when purchasing.
Zhang Jianping also reminded consumers that in view of the situation that ordinary sun umbrellas pretend to be anti-ultraviolet umbrellas in the market, consumers are more at ease in choosing brand-name products. Secondly, according to the fabric characteristics, it can also be preliminarily identified. Generally speaking, cotton, silk, nylon and viscose have poor ultraviolet resistance, while polyester is better.
How to tell whether it is anti-ultraviolet?
When buying an umbrella, you should pay attention to whether there is a label inside the umbrella indicating that the umbrella is anti-ultraviolet, which means that the umbrella can really prevent ultraviolet rays. Of course, there are also dual-purpose umbrellas that are both rain-proof and ultraviolet-proof. Usually the label will be sewn on the inside of the umbrella near the skeleton, or the price tag will indicate the anti-ultraviolet effect.
Why is the price difference between the two umbrellas so big?
The high price of some parasols is closely related to the fabric, handle, accessories, umbrella frame material, manufacturing technology, packaging and brand effect, and the anti-ultraviolet effect is not the main factor in pricing. Take fabrics as an example. At present, in addition to the past silver glue and pearl glue, there are also new fabrics such as mouth Mike cloth, silver onion satin cloth and knock-on cloth. These new fabrics can not only resist ultraviolet rays, but also have good visual effects. However, in terms of anti-ultraviolet effect, high-quality silver glue with relatively low price is actually the best.
The cost of UV protection umbrella should be at least 16 yuan.
A qualified anti-ultraviolet sunshade, even if it is made of the most common fabric and woven by high-density technology, will cost at least 16 yuan. And those so-called umbrellas that cost more than ten yuan or even several yuan are obviously counterfeit products. They just coated the ordinary umbrella with a layer of inferior reflective paint, which naturally failed to achieve the anti-ultraviolet effect. In addition, the skeleton of genuine sunshade is made of steel or aluminum, which is very strong; The skeleton of the fake umbrella is made of some scrap iron, and it will break in a few times.
How to choose a sunshade?
1. When choosing an umbrella cover, the ultraviolet protection performance of umbrellas with obviously sparse fabrics is generally poor, so consumers should buy them carefully.
2. Because the fabric has the characteristic of shrinking, when buying a parasol, the umbrella cover should be large rather than small.
3. The color of the fabric is related to the anti-ultraviolet performance. Under the same conditions, the darker the color, the better the ultraviolet resistance of the fabric. In contrast, black, navy blue, dark green and light blue, light pink and light yellow have better ultraviolet resistance.
4. Before purchasing, carefully check the protection grade mark. The Evaluation of Anti-UV Performance of Textiles issued by the General Administration of Quality Supervision, Inspection and Quarantine stipulates that only when the UPF is greater than 30 and the UVA transmittance is less than 5% can it be called an anti-ultraviolet product, and the protection grade standard is "UPF 30+"; When the UPF is greater than 50, it shows that the product has excellent anti-ultraviolet performance, and the protection level is marked as "UPF50++". When purchasing, consumers should carefully check the protection grade mark, and then choose the umbrella that suits them according to the local sun exposure.
5, choose brand-name products, beware of ordinary umbrellas and counterfeit anti-ultraviolet umbrellas.
6. According to the fabric performance of the umbrella cover, its ultraviolet resistance can be preliminarily judged. Generally speaking, cotton, silk, nylon and viscose have poor ultraviolet resistance, while polyester is better. The fabrics containing polyester commonly used for making umbrellas are satin cloth, Mike cloth and so on. In addition, satin fabric has the best UV protection, followed by twill and plain weave, and the darker the color, the better.
7. Whether the sun umbrella can prevent ultraviolet rays, the texture of the fabric is not the most important, what matters is what kind of technical treatment the manufacturer has done on the fabric. General cotton and linen fabrics have certain anti-ultraviolet performance, but the degree is not strong. In the past two years, most sun protection umbrellas sold in the market have been coated with a layer of silver glue, which can reflect and block some direct ultraviolet rays. However, the quality of silver glue is good or bad, and the silver glue produced by manufacturers with good technical conditions is not easy to fall off, while some cheap sun umbrellas just coat a layer of silver on their umbrellas to make up for it, which will fade after several sun exposures.
Special reminder
When the umbrella is wet, due to the light conduction of water, the ultraviolet transmittance increases and the protective effect decreases. Therefore, wet umbrellas are not suitable for ultraviolet protection.
Why is the paradise umbrella especially able to prevent ultraviolet rays?
In view of the increasingly serious harm of ultraviolet rays to human body, Hangzhou Paradise Umbrella Group is in urgent need of users, and specially employs senior scientific researchers to cooperate with many domestic universities, research institutes and manufacturers to carefully select fabrics, such as silver glue, satin, pearl glue, impact cloth and TC cloth. These fabrics are woven by high-density technology, which makes the molecular spacing of fabrics extremely dense. At the same time, the coating is mixed with ultrafine particles, which will scatter ultraviolet rays. After more than a year and hundreds of repeated experiments, a special anti-ultraviolet treatment technology-anti-ultraviolet recoating process, formula and coating method was finally developed. At present, this technology has been declared as a national patent. It can be said that the special processing technology is the most critical factor for the excellent anti-ultraviolet performance of Paradise Umbrella products. The anti-ultraviolet canopy of paradise umbrella has passed the strict anti-ultraviolet test of China Institute of Metrology, and has excellent anti-ultraviolet performance, and the protection level has reached UPF50++.
The summer sun is like fire, and all kinds of anti-ultraviolet umbrellas come in droves on the market. Experts from China Consumers Association remind consumers that it is "learned" to buy an anti-ultraviolet umbrella.
The expert revealed that the national standard "Evaluation of Anti-ultraviolet Performance of Textiles" has passed the examination and approval not long ago and will soon be promulgated by the AQSIQ. According to the standard, only UPF is greater than 30 and UVA transmittance is less than 5% can be called anti-ultraviolet products, and the protection grade standard is "UPF 30+"; When the UPF is greater than 50, it shows that the product has excellent anti-ultraviolet performance, and the protection level is marked as "UPF50++". At present, the UPF of anti-ultraviolet umbrellas on the market is generally 30 to 40, and only a few brands such as Paradise brand have reached 50+. When purchasing, consumers should carefully check the protection grade mark, and then choose the umbrella that suits them according to the local sun exposure.
In view of the situation that some ordinary umbrellas on the market are shoddy and counterfeit anti-ultraviolet umbrellas, the expert reminded that brand-name products should be selected first; Secondly, the anti-ultraviolet performance can be preliminarily judged according to the fabric performance of the umbrella cover. Generally speaking, cotton, silk, nylon and viscose have poor ultraviolet resistance, while polyester is better. The polyester-containing fabrics commonly used to make umbrellas include satin cloth, Mike cloth, impact-resistant cloth and so on. Some consumers think that the thick umbrella cover has good anti-ultraviolet performance, but it is not. In order to make umbrellas lightweight, some enterprises such as Paradise Umbrella have developed very thin but very compact fabrics, and their protective performance is far superior to ordinary fabrics. In addition, satin fabric has the best ultraviolet resistance, followed by twill and plain weave; The darker the color, the better.
Which brand of sun umbrella has good sun protection and good quality?
Sun umbrella brand:
1, UV protection and sunshade of Paradise Umbrella: Paradise Umbrella is the most famous umbrella brand, made of high-end fabrics, and its ribs are tough and light. Paradise umbrella is cost-effective and suitable for people who usually go out less.
2. Sun umbrella under banana: This sun umbrella is very light and mini, which can block 99% ultraviolet rays. It can be used as both a sun umbrella and an umbrella.
3. Zuodu Umbrella: This umbrella is a double-layer design, which can cool down by 5~9 degrees Celsius under the umbrella, and the UPF value of the umbrella surface exceeds 50+, which can effectively resist ultraviolet rays. This kind of umbrella can be quickly opened and closed, which is very convenient to carry and can be put in a handbag.
4, safe haven BFW sunshade: This sunscreen umbrella is fine in workmanship, good in quality and strong in shading, and can be used in rainy days and sunny days. This product is made of titanium and silver, which has high sunscreen performance and can protect the skin to the greatest extent.
5, Cmon 50% umbrella ultra-light umbrella: this is a Japanese brand umbrella, five-layer vinyl coating, zero light transmission, very good sunscreen effect.
What kind of sun umbrella can I buy in summer to effectively block ultraviolet rays?
As the temperature rises, various sun protection tools begin to play a role, among which parasol is one of the indispensable sun protection tools in summer. But now all kinds of parasols can be seen everywhere on the market. According to different brands and styles, the price ranges from tens of yuan to several thousand yuan. Then, in the face of these dazzling umbrellas, how to choose an umbrella that meets your own requirements and effectively shields ultraviolet rays?
First of all, it depends on the material of the sunshade, which can block ultraviolet rays and ultraviolet rays. It is best to use polyester or other microfiber materials. If polyester material can be selected for safety reasons, the thicker the fabric, the better the protection effect. From the effect of shading and ultraviolet protection, it is suggested to choose double-layer shading cloth for shading. Because of the thermal insulation between the two layers, the temperature under the umbrella is difficult to rise, which can effectively protect our skin. At the same time, the shading effect of double-layer cloth is better than that of single-layer cloth in filtering ultraviolet rays. Secondly, it depends on the sun protection index of the umbrella. Upf ensures that the umbrella you buy has the necessary protection signs.
You should know that any material with an ultraviolet SPF greater than 30 and a sunshade material with an ultraviolet penetration limit of less than or equal to 5% can resist ultraviolet radiation. It's best to use upf5 summer sunshade when traveling. Finally, we need to look at the coating of the sun visor. The layer in the awning is mainly to increase the anti-ultraviolet function. The umbrella has a large reflection area. It is best to have a black layer on the umbrella surface to avoid reflecting the ground again. Good vinyl transmittance can almost reach zero, and inferior vinyl coating may contain carcinogens, which is harmful to the body. Fundamentally speaking, sunshade is our outdoor umbrella. With it, you can walk in the scorching sun without worrying about the damage of ultraviolet rays.
The posture of holding an umbrella is also more particular.
When holding the umbrella directly, it can better block the direct sunlight, and the surrounding environment reflects less light on the face. So, try to stand up straight and don't carry it.
When the canopy is wet, due to the light transmission of water, the ultraviolet transmittance increases and the protective effect decreases. So don't use a wet umbrella to prevent ultraviolet rays.
How to choose an anti-ultraviolet sun umbrella?
The darker the color of the umbrella, the better the ultraviolet protection effect: the ultraviolet transmittance of the black umbrella is 5%; The ultraviolet transmittance of navy blue, red, dark green and purple umbrellas is 5%-10%; The ultraviolet transmittance of green, reddish, light green and white umbrellas is 15%-20%. Therefore, it is better to buy a dark umbrella cover to prevent ultraviolet rays.
The anti-ultraviolet effect is related to many aspects.
1. In terms of fabrics, silk, cotton and nylon have poor effects, while polyester has good effects;
2. In terms of organization, satin fabrics have the best anti-ultraviolet performance, such as satin cloth, followed by twill and plain weave;
3. The darker the color, the more sunscreen. Under the same conditions, the darker the fabric color, the better the anti-ultraviolet performance. In contrast, black, navy blue and dark green have better ultraviolet resistance than light blue, light pink and light yellow.
The ultraviolet transmittance of silver belt is lower than other fabrics, followed by pearlescent cloth.
The quality of silver glue is good or bad. Silver glue produced by manufacturers with good technical conditions is not easy to fall off, while some cheap sun umbrellas are just coated with a layer of silver, which will fall off after several sun exposures.
Silver glue fabric, some people feel as if it is cold, mainly because the silver glue fabric is thick, the light transmittance is low, and the heat is not felt. Silver glue fabric is also the first generation fabric used for sun protection umbrellas. The light and thin silk fabrics on the market now have the characteristics of lightness, transparency and bright colors because of their fine latitude and longitude. The other is thick and thin silk, and the thickness of latitude and longitude lines creates a kind of refraction, giving people a crystal clear feeling. However, silver ribbon fabric has its limitations. Silver tape coating is easier to fall off than other coatings. If it is used for a long time, the umbrella cover will be unsightly and the light transmittance will be low, but it has a relatively good sunscreen effect. This is also the most traditional sun umbrella, which has been popular for more than three years. For people who are outdoors all day, this kind of umbrella is better.
What kind of sun umbrella can I buy in summer to effectively block ultraviolet rays? Why?
Summer is coming, not only the temperature is high, but also the sunshine and ultraviolet rays are particularly strong. Therefore, most women who love beauty will put sunscreen measures in place when they go out. For example, apply sunscreen, wear sunscreen clothes, open an umbrella and so on. It can effectively protect against sunlight and ultraviolet rays. However, there are many kinds of sun umbrellas on the market, so it is not easy to buy an umbrella that can effectively block ultraviolet rays. First of all, you must choose a dark umbrella, and you must choose PG cloth. When buying a sun umbrella, you must also see if there is a shading coating or something.
1. What kind of umbrella can I buy in summer to effectively block ultraviolet rays? Why?
Perhaps most women, without a sun umbrella, will take an umbrella as an umbrella. However, compared with professional sun protection umbrellas and sun umbrellas, ordinary umbrellas are still different. After all, the sun umbrella is coated with a professional sunscreen coating, which will not let the light pass through the umbrella and burn the skin. Most sun umbrellas are coated with shading coating and contain upF label. If you want to buy a sun umbrella that can effectively isolate ultraviolet rays, then when you buy it, you must check whether the label inside the umbrella has upF value, as long as it can reach 30.
Second, the conclusion.
Daily sun protection can be done very well. It depends on the density of the umbrella. The thicker the umbrella, it doesn't mean that the sunshade effect of the sun umbrella is better. The tighter the density, the better the quality of the sun umbrella. And try to choose a sun umbrella made of pg cloth, because the main materials for making sun umbrellas on the market are mostly polyester, nylon and Pg cloth. But the strongest sunscreen function is Pg cloth. Because the sun umbrella made of Pg cloth is more expensive than ordinary sun umbrella, but it has the strongest anti-ultraviolet effect. Other umbrellas can also block light and ultraviolet rays, but the effect may be somewhat weak. If you don't pay attention, you may get sunburned.