8615355543590 suliya.sun@begoodtex.com

 

What Is UV-Resistant Fabric?

UV-resistant fabric uses special yarn or fabric structure design to shield against excessive UV radiation and prevent it from penetrating the skin, thereby preventing skin damage, sunburn, and premature aging. Using this type of fabric can protect the skin from the harmful effects of UV rays.

 

UVA, the Killer of Skin Aging.

In addition to visible light, the sun's spectrum also includes invisible ultraviolet and infrared light. Ultraviolet light is an electromagnetic wave with a shorter wavelength than visible light and accounts for about 6% of the spectrum. According to wavelength, ultraviolet radiation can be divided into three types: UVA, UVB, and UVC. Among them, UVA and UVB cause the most harm to the human body.

UVA: It is an invisible killer that can penetrate glass, some clothing, and the epidermis of the skin. It can penetrate into the dermal tissue and react with it, gradually destroying the elasticity of the skin, causing the skin to produce melanin, wrinkles, and sagging. It is the main cause of skin aging and tanning.

UVB: With greater energy, it can penetrate the epidermis of the skin, causing sunburn, redness, swelling, and blisters. It is the main cause of sunburn, skin tumors, and immune suppression.

UVC: With the greatest energy and the strongest effect, it can cause sunburn, genetic mutations, and tumors, but it is almost completely absorbed by the ozone layer before reaching the Earth's surface and does not cause harm to humans.

Only UVA and UVB can affect human health. Among them, UVA is the worst and most powerful, causing tanning, loss of collagen elasticity, wrinkles, and aging, accounting for about 95% of all UV radiation in sunlight. The remaining 5% is UVB, which is the main cause of sunburn. Long-term exposure to UV radiation can also cause textiles to fade and age. Therefore, it is necessary to treat textiles with UV-resistant finishing.

UVA

 

What Is UPF (Ultraviolet Protection Factor)?

UPF is a professional sun protection factor used for textiles, and a higher UPF represents better sun protection ability (ability to resist UVB and UVA). In normal environments, an anti-UV sun protection factor of UPF25 is effective in blocking most of the UV radiation. If you expect to be exposed to the sun for a long time, choose clothing with a higher sun protection factor.

What Is UPF

fun5-finish

The Mechanism of UV-Resistant Finishing.

From an optical perspective, when light is projected onto an object, a portion of it reflects on the surface, some of it is absorbed by the object, and the rest passes through the object. In general, the transmittance rate + reflectance rate + absorbance rate = 100%.

The principle of UV-resistant processing is to use UV blockers to treat fibers or fabrics.

When light radiation reaches the fabric, a small portion passes through the gaps in the fabric, and most of it is reflected or selectively absorbed by the UV blockers and converted into low energy, which is then released, thereby blocking the UV radiation.

 

Production of UV-Resistant Textiles.

The production of UV-resistant textiles belongs to the category of post-treatment of textiles, mainly involving the use of UV-resistant finishing agents, the preparation of finishing solutions, and the selection of finishing processes.

The finishing process of UV-resistant fabrics depends on the type of fabric and the final use. For example, summer clothing requires high softness and comfort, and it is better to use absorption or impregnation methods for UV-resistant finishing.

If used as decorative, household or industrial textiles, emphasis is placed on their functional requirements, and surface coating methods can be used.

For UV-resistant finishing of blended fabrics, impregnation and rolling-baking methods are still preferred from a technical point of view because this process has less impact on fiber properties, fabric style, moisture (water) absorption, and strength, and can also be combined with other functional finishes, such as antibacterial, deodorant, hydrophilic, and wrinkle-resistant finishes.

Factors Affecting the UV Radiation Resistance of Fabrics.

The ability of fabrics to resist UV radiation depends mainly on their ability to shield UV radiation. Fabrics usually have complex surfaces, which, in addition to absorbing light, also have the effects of scattering and reflecting light.

The effects of scattering and reflection need to consider various factors of the fabric itself, such as fabric structure, original yarn structure, fiber variety and regularity, and fabric color.

201

1. The Influence of the Structure of UV-Resistant Fabrics.

The fabric structure determines the geometric shape of the fabric. The thickness and density (covering coefficient or porosity) of the fabric structure. The tighter the fabric structure, the larger the covering coefficient, and the lower the UV transmittance, the greater the protective effect on the human body. Sparse fabrics have a low covering coefficient and are not easy to block light, so their protective effect is small.

2. The Influence of UV-Resistant Fibers and Yarns.

Under the same fabric structure, different fiber types have different UV transmittance rates. Polyester and wool fibers have lower UV transmittance rates than cotton and viscose fibers, which is because the benzene ring in the polyester molecule and the amino acid in the protein fibers such as wool and silk have good absorption properties for UV light with wavelengths less than 300nm.

3. The Influence of Fabric Color on UV Resistance.

As the fabric color deepens, the UV transmittance of the fabric decreases, that is, the UV radiation resistance performance improves. When testing with conventional polyester products, the sequence of UV radiation transmittance rates from small to large for different colors with the same shade is: black has a transmittance rate of 5%, dark blue, red, dark green, and purple have a transmittance rate of 5%~10%, and light green, light red, light green, and white have a transmittance rate of 15%~20%.

Selection of UV-Resistant Fabrics:

  • From Color Classification:

    Dark colors: are most effective at absorbing UV rays, making them the best at preventing UV radiation. The darker the color, the higher its UV protection, such as black, navy blue, dark blue, and dark purple.

    Bright colors: in addition to dark colors, the brighter the color, the more it can absorb UV rays, such as bright red, because the longer wavelength of red light can absorb a large amount of UV rays from the sun.
    White: can only reflect visible light and cannot effectively block UV rays.

  • From the Fabric Structure:

    Thicker fabrics in various clothing fabrics are better at resisting UV radiation than thinner ones. Polyester fibers have the best UV resistance, which is related to the benzene ring in the molecular structure of polyester fibers that can absorb UV rays. Nylon, cotton, and silk have poor UV resistance. Therefore, when choosing UV-resistant clothing, it is best to choose thicker fabrics containing polyester fibers.

    The tighter the fabric, the stronger the blocking ability, and the less UV radiation can penetrate. Woven fabrics have better UV resistance than knitted fabrics. The darker the color of the clothing fabric, the less UV radiation can penetrate, and the better the UV resistance.

Other Related Factors:

Experts suggest that the best way to protect against sun exposure is to avoid direct sunlight, especially from 10 a.m. to 4 p.m., when the sun's rays are strongest. Secondly, choose clothing that can cover the skin. Many outdoor functional brands have clothes that claim to have UPF ratings, and according to the Skin Cancer Foundation, these clothes can provide effective sun protection. In fact, any clothes with the following characteristics can provide some protection:

High density: The most important thing is the density of the material, and it is not necessary to wear multiple layers of clothing for better protection. The tighter the knit or weave, the smaller the holes, and the less UV radiation can penetrate.

Synthetic fiber: Synthetic fibers such as polyester and nylon have more protective properties than bleached cotton or rayon.
Keep dry: Research shows that the UPF value of clothing will decrease by one-third after sweating.
New is better than old: Clothes that are too old, worn, or faded may not provide adequate protection from harmful radiation.
More coverage is better: To fully protect against sun exposure, it is necessary to cover as much skin as possible, which means choosing long-sleeved shirts and pants that cover the most area.

fun5-last

Advantages of BEGOOGDTEX UV-Resistant Fabric

1. Good absorption and emission of ultraviolet radiation in the 180-400nm wavelength range, particularly UV-A and UV-B.

2. Strong shielding ability with UV transmittance rate < 3%.

3. UV resistance remains above 85% after multiple washings.

4. Non-toxic, safe for human use with no skin irritation or allergic reactions.

5. Good moisture absorption and breathability.

6. Can reach UPF50+ according to customer requirements, providing excellent protection against UV radiation.

7. Suitable for outdoor workwear, high-altitude clothing, and sun umbrellas.

8. Complies with current domestic and international UV protection performance testing standards.

 

Indicators for Evaluating UV Resistance Performance.

1. UV transmittance rate

2. UV shielding rate

3. Sun protection factor (SPF) and Ultraviolet Protection Factor (UPF)

4. Penetration rate

5. UV reflection rate

6. Logarithm of the average transmission rate for A and B wavelength fabrics

Criteria for Evaluating UV-Resistant Fabrics.

Currently, there is no global uniform testing standard for UV-resistant textiles. The main testing standards include the European Union standard (EN13758-1:2001), the Australia/New Zealand standard (AS/NZS4399:1996), the American AATCC standard (AATCC183-2010), and the Chinese national standard (GB/T18830-2009), etc. These standards mainly use stable UV light sources to generate UV radiation with a wavelength of 290nm~400nm, irradiate the sample with a monochromator, collect the total spectral projection rays, measure the total spectral projection ratio, and calculate the UV transmittance rate and UPF value of the sample.

Australia and New Zealand were the first to develop the "AS/NZS4399:1996 (Sun protective clothing - Evaluation and classification)" standard, which is mainly used to determine the UV transmittance rate of skin-tight protective textiles, clothing, and other protective items (such as hats), and proposes requirements for UV radiation protection labels.

The EU standard EN13758-1:2001 "(Textiles-Solar UV protective properties-Part 1: Method of test for apparel fabrics)" is mainly used to test the UV protection performance of apparel fabrics and is not suitable for products that provide long-distance UV protection such as umbrellas and sunshades.

The American AATCC standard AATCC183-2010 "(Transmittance or Blocking of Erythemally Weighted Ultraviolet Radiation through Fabrics)" is used to test the ability of UV-resistant fabrics to block or transmit UV radiation.

The Chinese national standard GB/T18830-2009 "Textiles - Assessment of the UV protection ability of fabrics" specifies the test method for the UV resistance of fabrics, the indication, evaluation, and labeling of the protection level.

 

Applications Of IFR + Inherent Anti-UV Fabric

 

Applications Of IFR + Inherent Anti-UV Fabric

 

UV-resistant fabrics are named for their ability to resist UV rays and are commonly used in people's daily lives.

1. T-shirts, fashion, outdoor clothing, skiwear, student uniforms, skirts, household curtains.

2. swimsuits, sportswear, beachwear, sun skirts, hats that protect ears and necks.

3. men's summer wear, women's shirts, skirts, and pants.

4. stockings, scarves, outing wear, tents, sun umbrellas.

5. mountaineering clothing, gloves, sun hats.

Among them, UV-resistant polyester fibers are very suitable for producing all kinds of woven and knitted clothing fabrics, which can be produced in pure spinning or interlacing. They are mainly used for processing summer clothing fabrics, sun hats, cool umbrellas, and summer women's stockings. The weaving performance is good, the fabric style is unique, and the hand feel is comfortable.

Relative Products

More Fabric >>
toTop
0
    0
    Your Cart
    Your cart is empty
    Continue Shopping