Application of UV absorber UV-1 in UV-1 for UV protection treatment in textiles

Introduction: “Love, Hate, Love and Hate” with the Sun

The Sun, the superstar on the cosmic stage, brings warmth and energy to the earth with its blazing light every day. However, it is not always so “friendly”. In the sun, there is an invisible but ubiquitous “invisible killer” – Ultraviolet Radiation (UV). Although moderate amounts of ultraviolet rays are beneficial to human health, such as promoting the synthesis of vitamin D, excessive exposure can lead to serious consequences such as skin aging, sunburn and even cancer. Therefore, how to effectively protect ultraviolet rays has become an important topic in modern life.

As the main material for people to wear in daily life, textiles are directly related to the health and safety of the human body. However, natural fibers such as cotton and linen have limited barrier ability to ultraviolet rays, and although chemical fibers have a certain shielding effect, they are prone to deterioration after long-term use, and the protective effect is reduced due to aging. Therefore, scientists have turned their attention to the magical chemical product of ultraviolet absorbers. Among them, UV absorber UV-1 has become an important choice in the field of UV-proof treatment for textiles due to its excellent performance and wide application prospects.

This article will conduct in-depth discussions on the ultraviolet absorber UV-1, and conduct a comprehensive analysis from its basic principles, product parameters, application methods to the current research status at home and abroad. Through rich tabular data and literature references, we will reveal to you how this small molecule plays a great role in textiles. Let us enter this world full of technological charm together!

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The basic principles of UV absorber UV-1

To understand the working mechanism of the UV absorber UV-1, we first need to understand the nature of UV and how it harms the human body. Ultraviolet rays are electromagnetic radiation with a wavelength range of 100 to 400 nanometers and are divided into three main parts: UVA (320-400 nm), UVB (290-320 nm) and UVC (100-290 nm). Among them, UVC is almost completely absorbed by the atmosphere, while UVA and UVB are the culprits that reach the surface and affect human health.

Hazards of UV rays

UVA is called “light of aging” because it can penetrate the dermis, destroy collagen and elastic fibers, causing problems such as skin sagging, wrinkles and pigmentation. UVB is called “burning light”. It has higher energy and mainly acts on the epidermis, causing redness, swelling, pain and even cell mutations. Long-term exposure may induce skin cancer.

So, how does UV absorber UV-1 protect us from these hazards? The answer lies in its molecular structure and functional characteristics.

Mechanism of action of UV absorber UV-1

UV-1 is a benzotriazole compound, with the chemical name 2-(2′-hydroxy-5′-methylphenyl)benzotriazole. Its molecular structure contains a key aromatic ring system, which gives UV-1 strong ultraviolet light absorption capacity. Specifically, when UV rays hit the surface of a textile containing UV-1, UV-1 quickly captures the energy of UV and converts it into heat or harmless low-energy radiation to release it, thereby avoiding UV rays from penetrating the fabric and causing damage to the skin.

This transformation process can be vividly compared to a “energy relay race”. Imagine UV rays are like a bunch of naughty balls trying to break into our skin castle. The UV-1 is like a well-trained goalkeeper, steadily catching every little ball and then skillfully transferring them elsewhere so that they can no longer threaten the safety of the castle.

In addition, UV-1 also has good light resistance and stability, and can maintain high UV protection performance even after multiple washings or long exposure to the sun. This makes it an ideal choice for UV protection for textiles.

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Product parameters of UV absorber UV-1

In order to better understand the performance characteristics of UV-1, we need to conduct detailed analysis of its various parameters. The following is a table that provides a comprehensive description of UV-1 in terms of appearance, solubility, stability and scope of application:

parameter name	Description
Appearance	White or slightly yellow powder, no special odor
Molecular formula	C15H11N3O
Molecular Weight	253.27 g/mol
Solution	Slightly soluble in water, easily soluble in, etc.
Heat resistance	Can withstand high temperatures up to 280℃ without decomposition
Photostability	Express excellent stability under strong ultraviolet light and is not prone to photodegradation
Chemical Stability	It has strong tolerance to acid and alkali environment, and the pH adaptation range is 4-10
Large absorption wavelength	340-360 nm, covering UVA and some UVB bands
Application concentrationRange	It is usually recommended that the amount of addition is 0.5%-2% of the weight of the textile. The specific amount should be adjusted according to the type of fabric and requirements

From the table above, UV-1 not only performs excellent in physical properties, but also exhibits extremely high reliability and flexibility in chemical properties. Whether it is used for light and breathable summer clothing or heavy and warm winter jackets, the UV-1 provides excellent UV protection.

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Application method of UV absorber UV-1 in textiles

The successful application of UV-1 to textiles is not an easy task, but a process that requires a combination of scientific formulas and exquisite craftsmanship. The following are several common application methods and their advantages and disadvantages:

Method 1: Immersion method

Operation steps

1. Dissolve UV-1 in a certain proportion in an appropriate solvent to make a working liquid;
2. Immerse the textiles completely into the working liquid to ensure uniform adsorption;
3. The textiles were extracted and dried to allow UV-1 to adhere firmly to the fiber surface.

Pros

• Simple process and easy to achieve large-scale production;
• The cost is low and suitable for handling large batches of ordinary textiles.

Disadvantages

• The protective effect may gradually weaken over time;
• It may have adverse effects on certain special materials (such as wool, silk).

Method 2: Coating method

Operation steps

1. Mix UV-1 with other additives to form a stable coating solution;
2. Use spraying, brushing or rolling coating to apply the coating evenly to the surface of the textile;
3. After curing treatment, a dense protective film is formed.

Pros

• Last protection effect and strong anti-washing ability;
• The coating thickness can be adjusted according to needs to achieve personalized customization.

Disadvantages

• Complex process and high cost;
• May affect the feel and breathability of textiles.

Method 3: Blending Spinning Method

Operation steps

1. UV-1 is directly added to the raw material during spinning to disperse it evenly;
2. Make functional fibers and then wove them into fabric.

Pros

• The protective effect is embedded in the fiber and will not fail due to external factors;
• Environmentally friendly and energy-saving, reducing subsequent processing processes.

Disadvantages

• The technical difficulty is high and the equipment investment is high;
• Applicable only to specific types of textiles.

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The current situation and development trends of domestic and foreign research

With people’s awareness of ultraviolet protection, the research and application of the ultraviolet absorber UV-1 has received widespread attention. The following is a summary of some research results of domestic and foreign scholars in this field in recent years:

Domestic research progress

A study by a research institute of a Chinese Academy of Sciences shows that by optimizing the dispersion technology of UV-1, its uniform distribution in textiles can be significantly improved, thereby improving the overall protective effect. Experimental data show that the UPF value (ultraviolet protection coefficient) of textiles after using improved processes can reach 50+, far exceeding the requirements of international standards.

Another study led by Tsinghua University focuses on the composite application of UV-1 and nanomaterials. Researchers found that using UV-1 with titanium dioxide nanoparticles can not only enhance the UV absorption capacity, but also impart a variety of additional functions such as antibacterial and self-cleaning to textiles.

International Research Trends

DuPont has developed a UV-1-based smart textile technology that can monitor UV intensity in real time through sensors and automatically adjust protection levels. This innovative achievement has been successfully applied to the outdoor sportswear market and has been highly praised by consumers.

Toray Japan has made breakthroughs in the field of environmentally friendly ultraviolet absorbers. They launched a UV-1 alternative based on plant extracts, which not only possesses the excellent performance of traditional products, but also greatly reduces potential harm to the environment.

Future development trends

Looking forward, the research directions of the ultraviolet absorber UV-1 will be more diversified and refined. On the one hand, scientists will continue to explore more efficient and stable absorbent formulas; on the other hand, intelligence and multifunctionalization will become an important trend in the development of the industry. It can be foreseen that in the near future, we will have more safe and practical UV-proof textiles, bringing more convenience and guarantees to human life.

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Conclusion: Protect every beauty in the sun

UV absorber UV-1 is a highly efficient anti-ultraviolet tool, which is quietly changing our lifestyle. From clothing in daily life to protective equipment in professional fields, its figure is everywhere. As the song sings: “Sunlight always appears after the wind and rain.” And we hope to make this sunlight more gentle and friendly through the power of technology.

Wish every reader can enjoy the sun while not forgetting to choose a reliable ultraviolet protection measure for themselves and their families. After all, health is the precious wealth in life!

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