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The unique application of anti-yellowing agent in high-end customized shoes to meet personalized needs

3月 16th, 2025 News

Anti-yellowing agent for soles: a secret weapon in high-end customized shoes

On the fashion stage, shoes are never just accessories under your feet, but also a symbol of identity, taste and personality. And when we turn our attention to high-end custom shoes, these carefully crafted works of art show extraordinary pursuit of craftsmanship and quality. However, behind this seemingly glamorous, there is a very neglected but crucial issue – the yellowing phenomenon of the soles of the shoe. This color change caused by time or environmental factors will not only destroy the overall beauty of the shoe, but may also cause a pair of valuable customized shoes to lose their original brilliance.

Anti-yellowing agent in the sole is the key to solving this problem. It is like an invisible guardian, silently providing lasting protection for every pair of customized shoes. Through scientific formulation and technological innovation, anti-yellowing agents can effectively delay or even completely prevent color changes caused by oxidation or other chemical reactions of sole materials, ensuring that the shoes are always new. Especially in the field of high-end customization, the application of this technology is indispensable because it not only concerns the durability of the product, but also directly affects consumer satisfaction and brand reputation.

This article will discuss the unique application of anti-yellowing agents in high-end customized shoes from multiple angles, including its working principle, technical parameters, market status and future development trends. At the same time, we will also combine relevant domestic and foreign literature to analyze how this technology meets consumers’ growing personalized needs and brings new development opportunities to the industry. Let’s uncover the mystery of anti-yellowing agents in the sole and explore its infinite possibilities in the field of high-end custom shoes.

Classification of anti-yellowing agents in soles and their mechanism of action

Anti-yellowing agents are an indispensable category of chemicals in the modern shoemaking industry. According to their chemical structure and mechanism of action, they can be mainly divided into the following categories: antioxidants, ultraviolet absorbers, free radical trapping agents and other functional additives. Each type has unique performance characteristics and scope of application, and together they form the core component of the sole anti-yellowing protection system.

Antioxidants: Pioneer in delaying the aging process

Antioxidants are a type of compounds that have been used in anti-yellowing treatment for soles. Their main function is to delay the aging process of materials by interrupting the oxidation reaction chain. This type of substance is usually divided into two categories: phenolic antioxidants and amine antioxidants. Among them, phenolic antioxidants have become one of the widely used varieties because of their excellent thermal stability and low volatility. For example, tetrakis[?-(3,5-di-tert-butyl-4-hydroxyphenyl)propionic acid]pentaerythritol ester (Irganox 1010) is a typical highly efficient antioxidant that significantly improves the heat resistance and yellowing resistance of rubber or plastic products.

Common antioxidants Chemical Name SpecialPoint
Irganox 1010 Tetra[?-(3,5-di-tert-butyl-4-hydroxyphenyl)propionic acid]pentaerythritol ester High thermal stability and low volatility
BHT 2,6-Di-tert-butyl p-cresol Low cost, moderate effect
Irganox 1076 Tris(nonylphenyl)phosphite Strong hydrolysis resistance

The mechanism of action of antioxidants can be simply summarized as “sacrificing oneself and protecting the whole”. When the sole material is affected by external oxygen, the antioxidant will preferentially react with the reactive oxygen species to form stable compounds, thereby preventing further expansion of the oxidation reaction. This property allows antioxidants to continue to function for a long time, providing reliable anti-yellowing protection for the sole.

UV absorber: Shield that resists sunlight erosion

UV rays are one of the important external factors that cause yellowing of the sole, especially when exposed to the outdoor environment for a long time. UV absorbers can protect the soles by selectively absorbing ultraviolet energy at a specific wavelength and converting it into harmless heat and releasing it out. This type of additive mainly includes benzotriazoles, benzophenones and cyanoacrylates.

Common UV absorbers Chemical Name Features
Tinuvin P 2-(2′-hydroxy-5′-methylphenyl)benzotriazole High absorption efficiency, suitable for transparent materials
Uvinul M40 2-hydroxy-4-methoxybenzophenone Good light stability and strong compatibility
Cyasorb UV-1164 2-(2H-benzotriazole-2-yl)-4,6-ditert-amylphenol Strong mobility resistance, suitable for complex formulas

The big advantage of ultraviolet absorbers is their highly specific selective absorption capacity, which means that they can effectively reduce the destruction of ultraviolet rays on the material’s molecular structure without affecting other performance of the sole. thisIn addition, some high-performance ultraviolet absorbers also have good migration resistance and extraction resistance, and can maintain stable effects even under repeated cleaning or friction conditions.

Free radical capture agent: Hunter who captures unstable molecules

Free radicals are key intermediates in many chemical reactions and are one of the main reasons for yellowing of the sole. Free radical capture agents cut off chemical reaction chains that may cause yellowing by quickly capturing these highly active molecules, converting them into relatively stable compounds. This type of additive mainly includes thioesters, phosphites and certain specially designed polymer stabilizers.

Common free radical capture agents Chemical Name Features
TNPP Trinonylphenylphosphite High capture efficiency and wide compatibility
DSTDP Didodecylthiodipropionate Strong heat resistance and good mobility resistance
Adkastab PEPQ Polyethylene oxide quinoline compound Excellent comprehensive performance, suitable for a variety of substrates

The unique feature of free radical capture agents is its efficient reaction speed and wide application range. Whether during high temperature processing or in long-term use, they respond quickly and eliminate potentially harmful free radicals, ensuring that the sole always maintains its ideal appearance.

Other functional additives: the supplementary power of all-round protection

In addition to the above three major categories, some functional additives are also widely used in anti-yellowing treatment of shoe soles. For example, light stabilizers can reduce the penetration depth of ultraviolet rays by changing the reflection characteristics of the material surface; antioxidant synergists can work together with other antioxidants to further improve the overall protective effect. In addition, some new nanomaterials have gradually begun to enter this field. With the advantages of ultra-small particle size and high specific surface area, they have brought new possibilities to the anti-yellowing technology of the sole.

To sum up, different types of anti-yellowing agents have their own characteristics and complement each other. Only by using them reasonably can their comprehensive performance be fully utilized. In the field of high-end customized shoes, this multi-level and multi-dimensional protection strategy is particularly important, because only in this way can consumers truly meet the strict requirements of product quality and appearance.

Application cases and actual effects in high-end customized shoes

The application of anti-yellowing agent in high-end customized shoes has achieved remarkable practical results, especiallyIt has been fully verified in the products of some well-known brands. Here are several specific cases to show how different types of anti-yellowing agents play their unique role in actual production.

Case 1: Innovative application of Italian luxury brand Giuseppe Zanotti

Giuseppe Zanotti, a world-renowned luxury shoe brand, has introduced a composite anti-yellowing agent solution in its high-end sports shoe series in recent years. The protocol combines the phenolic antioxidant Irganox 1010 and the ultraviolet absorber Tinuvin P, which is specially designed to protect soles made of EVA foam. During the traditional manufacturing process, this material is prone to obvious yellow spots caused by ultraviolet rays, which seriously affects the appearance of the product. By adding these two anti-yellowing agents, Zanotti successfully achieved long-term stability of the sole color, which remained as white as before even after months of exposure to the sunlight.

Application Parameters Data Value Remarks
Add amount (ppm) 800-1200 Adjust to the specific formula
Initial Whiteness ?95% Measured using BYK-Gardner standard tester
Yellow Index (?YI) ?2.0 After accelerated aging experiments

In addition, Zanotti also uses nano titanium dioxide coating technology in some styles, further enhancing the soil resistance and yellowing resistance of the sole surface. This coating not only effectively shields UV rays, but also keeps the soles clean by catalyzing the decomposition of organic pollutants, thereby indirectly extending the duration of the anti-yellowing effect.

Case 2: The red-bottom miracle of French classic brand Christian Louboutin

Christian Louboutin is famous for its iconic red sole, but it is not easy to maintain the long-lasting unchanging of this bright color. To this end, Louboutin’s R&D team has specially developed a composite formula based on phosphite radical capture agent TNPP and a special modified resin. This system not only prevents the soles from fading due to oxidation, but also resists various chemical erosions that may be encountered during daily wear, such as perfume and cosmetic residues.

Application Parameters Data Value Remarks
Additional amount (wt%) 0.5-1.0 Adjust according to the final color requirements
Scrub resistance >50 times Test using ASTM D4217 standard method
Color difference value (?E) <1.5 Observation under normal lighting conditions

It is worth noting that Louboutin also pays special attention to environmental protection and sustainable development considerations. All anti-yellowing agents they choose are compliant with EU REACH regulations and have passed strict toxicological assessments to ensure that they do not pose any potential threat to human health. This responsible attitude has won the trust and support of more and more consumers.

Case 3: The technological breakthrough of American sports giant Nike

Nike has tried a smart anti-yellowing technology called “SmartGuard” for the first time in the new generation of Air Max series running shoes. At the heart of this technology is Adkastab PEPQ, an adaptive antioxidant synergist that can automatically adjust its activation level as environmental conditions change, so as to always be in a good working state. Combined with Nike’s unique Flyknit weaving technology and lightweight foam material, this running shoe not only has excellent comfort and support, but also achieves an unprecedented long-lasting and refreshing effect in appearance.

Application Parameters Data Value Remarks
Intelligent response time <3 seconds Measured under laboratory conditions
Dynamic Durability >1000 hours Simulate real usage scenario test
User Satisfaction Rating 4.8/5 Based on global user feedback statistics

From the above three typical cases, it can be seen that the application of different types of anti-yellowing agents in high-end customized shoes has expanded from simple protective functions to a more comprehensive and refined direction. Whether it is optimized for specific materials or integrated solutions combined with other advanced technologies,It reflects the modern shoemaking industry’s spirit of continuous progress in pursuing the ultimate quality.

Analysis of market demand and trends of anti-yellowing agents

As the global consumers’ pursuit of high-quality life continues to improve, the market demand for anti-yellowing agents in the sole is showing a rapid growth trend. According to statistics, the global anti-yellowing agent market size of the global sole has reached about US$1.5 billion in 2022, and is expected to exceed US$2.5 billion by 2028, with an average annual compound growth rate of more than 8%. Behind this strong growth trend, it reflects the results driven by multiple factors.

Regional Distribution Characteristics

From the geographical perspective, the Asia-Pacific region is undoubtedly the current global consumer market with large anti-yellowing agents, accounting for nearly 60% of the total demand. This is mainly due to the concentrated concentration of shoemaking enterprises and production bases in the region, especially China, India and Vietnam, which have become the world’s leading footwear manufacturing centers. At the same time, although developed countries in Europe and the United States are slightly inferior in absolute quantity, due to the developed market of high-end customized shoes and the extremely high product quality requirements, the proportion of anti-yellowing agent added to unit products is often higher.

Region Market Share (%) Main drivers
Asia Pacific 58 The cost advantage is obvious, and the industrial chain is complete
Europe 22 High brand concentration and strict environmental protection regulations
America 15 Excellent technological innovation capabilities
Africa 5 High potential, starting late

It is worth noting that the rise of the African market is gradually attracting industry attention. Although the scale is still small, with the improvement of local economic level and the acceleration of urbanization, it is expected to become a new growth pole in the next few years.

Segment of application fields

According to application areas, sports shoes and casual shoes are the two main target markets for anti-yellowing agents in soles, accounting for nearly 70% of the total. This is because such shoes usually require good wear resistance and breathability, and these two characteristics just happen to cause the sole material to be more likely to be yellowed. In contrast, although leather shoes and boots are relatively small in use, they have higher unit price and longer service life, so they have more stringent requirements for product performance, which also prompts manufacturers to invest more resources in technical research and development.

Application Fields Market Share (%) Key Challenges
Sports Shoes 38 Balance performance and cost
Casual Shoes 32 Enhance personalization options
Leather Shoes 15 Control minor defects
Boots 10 Adapting to extreme environments
Others 5 Explore emerging uses

Especially as personalized customized services are becoming increasingly popular, how to flexibly adjust the anti-yellowing agent formula according to the specific needs of different customers has become a new focus of industry competition. For example, some consumers prefer bright white soles, which requires the anti-yellowing agent used to have super hiding ability and long-term stability; while others prefer natural texture effects, they need to use gentler and more transparent products to retain the original material characteristics.

Technical development direction

Looking forward, the technological advancement of anti-yellowing agents in soles will mainly focus on the following directions:

  1. Multifunctional Integration: The single-function traditional anti-yellowing agent is gradually being replaced by a new generation of products that integrate multiple additional attributes such as antibacterial and mildew. This integration can not only simplify the production process, but also effectively reduce the overall cost.

  2. Green and Environmental Protection: With the increasing awareness of environmental protection worldwide, non-toxic, harmless and easily degradable bio-based anti-yellowing agents will become a research hotspot. This type of material not only helps reduce the carbon footprint, but also better caters to modern consumers’ expectations for sustainable development.

  3. Intelligent regulation: With cutting-edge technological means such as the Internet of Things (IoT) and artificial intelligence (AI), precise control and real-time monitoring of anti-yellowing agent dosage can be achieved, so as to maximize its effectiveness while avoiding waste.

In short, as an important role in connecting raw materials and final products, its future development will closely follow the pace of transformation and upgrading of the entire shoemaking industry, while meeting diversified market demands, it also opens up a broader development space for itself.

Statement of personalized demand satisfaction strategies for anti-yellowing agents in high-end customized shoes

In today’s era of personalization, high-end customized shoes not only need to show a unique design style, but also need to impress every picky consumer through excellence in details. As one of the key factors affecting the appearance and life of the product, the strategy of satisfying personalized needs is particularly important. The following will discuss in detail how to better cater to this trend from three aspects: formula customization, performance optimization and service extension.

Formula customization: create exclusive protection solutions

To formulate personalized anti-yellowing agent formulas in response to the needs characteristics of different customer groups has become a common practice for high-end customized shoe companies. For example, for sports enthusiasts who often participate in outdoor activities, their shoes may be frequently exposed to strong UV environments, so it is necessary to focus on strengthening UV absorption. At this time, you can choose to appropriately increase the proportion of high-efficiency ultraviolet absorbers such as Tinuvin P, and at the same time use an appropriate amount of antioxidants to form a double protection barrier.

Customer Type Main Requirements Recommended recipe
Outdoor Sportsman Strong UV protection Tinuvin P: 800ppm + Irganox 1010: 500ppm
Business People Elegant Appearance TNPP: 1.0wt% + Modified Resin Coating
Literary Youth Natural texture DSTDP: 0.5wt% + nano silica dispersion

For those business people who pursue low-key luxury, they pay more attention to the lasting stability of the sole color and the exquisite expression of the subtleties. At this time, you can consider using a radical capture agent such as TNPP and a special modified resin coating, which not only ensures the anti-yellowing effect but also does not lose the true touch of the original material.

Performance optimization: Taking into account both aesthetics and practicality

In addition to simple formula adjustment, it is also necessary to optimize the performance indicators of anti-yellowing agents from a deeper level, so that they can not only meet the high visual standards requirements, but also show excellent functional characteristics in actual use. For example, when dealing with transparent or translucent soles, special attention should be paid to choosing varieties with high light transmittance and no atomization phenomenon to avoid affecting the overall aesthetics.

In addition, considering the increasing emphasis on health of modern consumers, all involvedAnti-yellowing agents in the contact areas of human body must undergo strict toxicological testing to ensure that they are safe and harmless. At the same time, in order to further enhance the environmental properties of the product, we can also actively explore the use of bio-based anti-yellowing agents synthesized by renewable resources to replace products from traditional petrochemical raw materials.

Service extension: Build a full range of experiences

After

, relying solely on the quality improvement of the product itself is not enough to completely win customer loyalty. It also needs to narrow the distance between the brand and consumers through high-quality services. In this regard, many leading companies have begun to try to launch one-to-one professional consulting services to help customers choose suitable anti-yellowing solutions based on their own preferences and living habits.

In addition, it is also very important to establish a complete after-sales tracking mechanism. By regularly collecting user feedback information, we can not only timely discover and solve potential problems, but also accumulate valuable data resources to guide subsequent R&D work. More importantly, this proactive caring attitude can allow consumers to feel the brand’s sincere attitude, thereby establishing a long-term and stable cooperative relationship.

In short, by implementing these highly targeted and creative strategies, sole anti-yellowing agents are fully capable of playing a more important role in the field of high-end customized shoes, providing a unique value experience for every customer who pursues perfection.

Conclusion: The future path of anti-yellowing agent for soles

As an indispensable technical pillar in the field of high-end customized shoes, the sole anti-yellowing agent has long surpassed the scope of simple functionality and has become one of the key elements in shaping the brand image and enhancing the user experience. Looking back at the full text, we started from the basic classification and mechanism of anti-yellowing agents, gradually analyzed its specific performance in different application scenarios, and deeply discussed how to meet the increasingly complex market demand through personalized customization strategies. Each link demonstrates the unique position of this technology in the modern shoemaking industry chain.

Looking forward, the development direction of anti-yellowing agents in the sole will be more diversified and intelligent. On the one hand, with the advancement of new materials science, we can foresee that more innovative compounds will be developed, which will not only provide stronger protection, but will also make breakthrough progress in reducing costs and improving environmental performance. On the other hand, with the support of big data analysis and artificial intelligence algorithms, the application of anti-yellowing agents will become more accurate and efficient, truly distributing and tailoring on demand.

For the majority of practitioners, this is both an opportunity and a challenge. Only by keeping up with the pace of the times, constantly updating the knowledge structure, and being brave enough to explore unknown fields can we be invincible in this fierce market competition. As the ancient proverb says: “If you want to do a good job, you must first sharpen your tools.” Anti-yellowing agent in the sole is undoubtedly one of the sharp tools in our hands. It carries the wisdom of countless craftsmen and will continue to write its own brilliant chapters.

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Anti-yellowing agent in the sole is used in dance shoes to maintain the best condition and help dancers perform

3月 16th, 2025 News

Anti-yellowing agent for soles: Make dance shoes always look new and help dancers bloom

1. Introduction: Why is anti-yellowing agent so important for dance shoes?

Dance is an art form that coexists with elegance and strength. From ballet to street dance, every dance requires the dancer to wear specially designed shoes to complete various movements. However, over time, the soles of dance shoes may experience a plaguing “yellowing” phenomenon. This change not only affects the beauty, but may also reduce the performance of the shoes, which in turn affects the performance of the dancer.

Yellow changes in the sole are usually caused by ultraviolet irradiation, oxidation reactions, or material aging. For dancers who pursue perfection, a pair of dance shoes that always remain as white as new is not only a symbol of confidence, but also an important guarantee for stage performance. Therefore, the application of anti-yellowing agents has become one of the key technologies to extend the service life of dance shoes and improve their appearance and performance.

This article will conduct in-depth discussion on the mechanism of the anti-yellowing agent of the sole, its application method and its actual effect in dance shoes. By analyzing relevant domestic and foreign literature and combining specific product parameters, we will reveal how to choose and use appropriate anti-yellowing agents to ensure that dance shoes can maintain good condition for a long time and provide strong support for dancers.

Next, let us enter this world that is both scientific and artistic!

2. Causes and harms of yellowing soles

(I) The main reasons for yellowing

Yellowing soles is a common aging phenomenon, and behind it involves a variety of complex chemical and physical processes. Here are the main reasons for yellowing of the sole:

  1. Ultraviolet rays
    Ultraviolet rays are one of the main causes of yellowing of the soles. When the sole is exposed to sunlight, UV light can destroy the polymer molecular chain structure and trigger a radical reaction, causing the material to gradually deepen the color. For example, common sole materials such as polyurethane (PU) and rubber are prone to degradation under ultraviolet rays and eventually appear yellow or brown.

  2. Oxidation reaction
    Oxygen is a natural element everywhere, and some components in sole materials undergo oxidation reactions after long-term contact with air. This reaction causes carbonyl compounds or other colored substances to be formed on the surface of the material, which changes the color of the sole. Especially in high temperature environments, the speed of oxidation reaction will be significantly accelerated.

  3. Poor storage conditions
    If dance shoes are stored in a humid, stuffy or unventilated place, the sole material may absorb moisture and accelerate the aging process. In addition, some inferior sole materials have poor yellowing resistance and are more likely to have problems in harsh environments.

  4. Processing process defects
    During the production process, if the additives are used improperly or the formula design is unreasonable, it may also cause yellowing risks. For example, certain accelerators, vulcanizers or plasticizers can produce by-products under certain conditions that may react with the sole material, causing color changes.

(II) The harm of yellow change to dance shoes

The yellowing of the sole is not only a problem of appearance, it can also bring the following hazards:

Hazard Type Specific performance
Influences the beauty The yellow change will cause the dance shoes to lose their original white luster and look outdated, which will directly affect the dancers’ image and self-confidence.
Reduce performance Aging of the material will lead to increased hardness, decreased elasticity of the sole, and may even cause cracks or breaks, which seriously affects the dancer’s performance on the stage.
Short lifespan Long-term yellowing will not only damage the appearance, but will also weaken the mechanical strength of the sole, making dance shoes scrapped faster and increasing replacement costs.

It can be seen that solving the problem of yellowing of the soles has become an important issue in the field of dance shoes manufacturing. Anti-yellowing agents are an effective means to deal with this challenge.

3. Basic principles and classification of anti-yellowing agents

(I) Mechanism of action of anti-yellowing agent

Anti-yellowing agent is a special chemical that is mainly used to inhibit or delay the occurrence of yellowing of materials. Its mechanism of action mainly includes the following aspects:

  1. Absorb UV rays
    The ultraviolet light stabilizer in the anti-yellowing agent can effectively absorb ultraviolet energy and convert it into heat energy to release it, thereby avoiding the damage of ultraviolet rays to the sole material.

  2. Catch free radicals
    Free radicals are important factors that lead to oxidation reactions. Antioxidants in anti-yellowing agents can capture these free radicals, terminate the chain reaction, and prevent further aging of the material.

  3. Shield oxygen
    Some anti-yellowing agents can also form aThe protective film is layered to reduce the contact area between the sole material and the external oxygen, thereby reducing the possibility of oxidation reaction.

  4. Improve material stability
    Anti-yellowing agents can also optimize the molecular structure of sole materials, improve their heat and light resistance, and fundamentally enhance the material’s anti-yellowing ability.

(II) Classification of anti-yellowing agents

Depending on the function and composition, anti-yellowing agents can be divided into the following categories:

Category Features Application Scenario
Ultraviolet absorber Able to absorb ultraviolet rays and convert them into harmless forms of energy Commonly used for outdoor sports shoes that require long-term exposure to the sun
Antioxidants Mainly used to capture free radicals and prevent oxidation reactions Footwear widely used in indoor dance shoes and other closed environments
Light Stabilizer Improve the material’s tolerance to light and delay the yellowing speed Fits all types of sole materials, especially white or light soles
Compound anti-yellowing agent Combining multiple functions into one, the overall effect is better is the mainstream choice on the market at present, suitable for high-end dance shoes

IV. Application of anti-yellowing agents in dance shoes

(I) The need for dance shoes to fight the yellowing agent

As professional functional footwear, dance shoes have extremely strict performance requirements. Here are some key requirements:

  1. Last-lasting white appearance
    Dance shoes usually use white or light-colored soles to show a clean and neat image. Anti-yellowing agents can help the soles stay white during use and avoid affecting the overall visual effect due to yellowing.

  2. Excellent wear resistance and flexibility
    The dance movements are complex and changeable, which puts high demands on the wear resistance and flexibility of the soles. Anti-yellowing agents can not only prolongSlowing yellowing can also indirectly improve the mechanical properties of sole materials, making them more suitable for high-intensity training and performance.

  3. Environmental and Safety
    Dance shoes directly contact the skin, so the materials used must be safe and non-toxic. High-quality anti-yellowing agents should comply with international environmental standards to ensure that they do not pose a threat to human health.

(II) Typical application scenarios

Scene Anti-yellowing agent selection Reason
Ballet Shoes Compound anti-yellowing agent Ballet shoes often need to be displayed under bright lights. Anti-yellowing agents can ensure that the soles are still as white as before under strong light
Street Dance Shoes UV absorber + antioxidant Street dance shoes are often used in outdoor venues and must be protected from the double infringement of ultraviolet rays and oxidation
Latin dance shoes Light Stabilizer Latin dance shoes focus on fashion, light stabilizers help keep the soles bright and not fade easily

5. Product parameters and selection guide for anti-yellowing agent

(I) Main Product Parameters

The following is a comparison of the core parameters of several common anti-yellowing agents:

parameters UV-531 (UV absorber) BHT (antioxidant) HALS (light stabilizer)
Chemical Name 2-(2′-hydroxy-5′-methylphenyl)benzotriazole Di-tert-butyl p-cresol Trumped amine light stabilizers
Appearance White crystalline powder White needle-shaped crystals White particles
Melting point (?) 108-112 69-71 >200
Density (g/cm³) 1.4 0.96 1.0-1.2
Additional amount (wt%) 0.1-0.5 0.1-0.3 0.5-1.0

(Two) Selection Guide

  1. Select according to the usage environment

    • Indoor use: priority is given to antioxidants and light stabilizers.
    • Outdoor use: It is recommended to use a combination of ultraviolet absorbers and antioxidants.

  2. Select according to sole material

    • Rubber bottom: suitable for adding traditional antioxidants such as BHT.
    • PU bottom: It is recommended to use high-efficiency light stabilizers such as HALS.

  3. Select according to budget

    • Economic: One-component anti-yellowing agent (such as UV-531).
    • High-end type: Complex anti-yellowing agent (combined with multiple functions).

6. Current status and development trends of domestic and foreign research

(I) Progress in foreign research

In recent years, European and American countries have achieved remarkable results in research on anti-yellowing agents. For example, DuPont, the United States, has developed a new nano-scale anti-yellowing agent, which has better dispersion and lower addition, but has more significant effects. BASF Group, Germany, has launched a series of environmentally friendly anti-yellowing agents based on green chemistry concepts, which are widely welcomed by the market.

(II) Domestic research trends

my country has also made great progress in the research and development of anti-yellowing agents. A study from the School of Materials of Tsinghua University shows that by introducing rare earth element modification, the effectiveness of anti-yellowing agents can be greatly improved. In addition, the Institute of Chemistry, Chinese Academy of Sciences is exploring the use of bio-based raw materials to synthesize degradable anti-yellowing agents, aiming to achieve more sustainable development goals.

(III) Future development trends

  1. Multifunctional
    Integrate anti-yellowing, antibacterial, anti-molding and other functions into a single product to meet diverse needs.

  2. Green and environmentally friendly
    Develop more based on renewableResource anti-yellowing agent to reduce environmental impact.

  3. Intelligent
    Intelligent response technology is introduced to enable anti-yellowing agents to automatically adjust their efficacy according to external conditions.

7. Conclusion: Anti-yellowing agents provide escort to dancers

Although the anti-yellowing agent of the sole seems to be just a small additive, it carries the important responsibility to protect the mission of dancing shoes. Whether it is the elegance and purity of ballet shoes or the toughness and durability of street dance shoes, anti-yellowing agents play an indispensable role in it.

As a proverb says, “Details determine success or failure.” For dancers, a pair of dance shoes that always remain as white as new is not only the basis of their stage performance, but also the source of confidence and passion. And the anti-yellowing agent is the invisible hero behind this confidence.

I hope every dancer can sweat and shine its own light with the company of anti-yellowing agent!

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Anti-yellowing agent in the sole helps running shoes to be more wear-resistant, provides stable support and protects athletes’ feet

3月 16th, 2025 News

Anti-yellowing agent for soles: “Invisible Guardian” in the running shoe industry

In the world of sports, a good pair of running shoes is the close companion of athletes. It not only carries our footsteps, but also protects our feet from harm. However, among the numerous materials and designs of running shoes, there is a low-key but crucial role – the anti-yellowing agent for the sole. Although this small chemical additive is inconspicuous, it plays an indispensable role in the durability and performance of running shoes.

Imagine that when you run on a running track with dark morning light, your running shoes are not only your support point, but also a buffer between you and the ground. Over time, sunlight, humidity and other environmental factors will gradually cause the running shoes to lose their original color and elasticity. The anti-yellowing agent is like a loyal guard, silently resisting the erosion of these external factors on running shoes, ensuring that the running shoes are in good condition at all times.

This article will conduct in-depth discussion on the role, types of anti-yellowing agents in the sole and their application in the manufacturing of running shoes. We will also analyze the research progress of anti-yellowing agents at home and abroad, and use data and tables to illustrate the effects of different anti-yellowing agents. In addition, we will explore how to choose the right anti-yellowing agent to meet different sports needs and provide some practical advice to help athletes and consumers better understand and use this key technology.

Let’s uncover the mystery of anti-yellowing agent in the sole and see how it helps running shoes to be more wear-resistant and stable, thereby better protecting athletes’ foot health.

Basic concept of anti-yellowing agent for soles

Sole anti-yellowing agent is a chemical additive specially designed to prevent color changes and performance degradation of sole materials due to ultraviolet irradiation, oxygen oxidation or thermal aging. This additive is widely used in various shoe materials, especially those with high-performance sports shoes, such as running shoes that require long-term exposure to outdoor environments. Anti-yellowing agents effectively delay the aging process of the sole and maintain the stability of its appearance and physical properties through mechanisms such as absorbing or reflecting ultraviolet rays, inhibiting oxidation reactions, and stabilizing molecular structure.

The working principle of anti-yellowing agent

The core function of anti-yellowing agents is that they can prevent or slow down chemical reactions that cause yellowing. The following are its main mechanisms of action:

  1. Ultraviolet absorption: Many anti-yellowing agents contain groups that can absorb ultraviolet rays, such as benzotriazole compounds. These groups capture high-energy UV photons, converting them into lower energy forms (such as heat energy), thus preventing UV-induced molecular bond breakage.
  2. Free Radical Capture: Antioxidant-type anti-yellowing agents can capture free radicals produced by oxygen or other oxidizing agents, preventing them from further attacking the polymer chains, thereby avoiding material degradation and yellowing.
  3. Molecular Stabilization: Some anti-yellowing agents can also enhance the interaction between polymer molecules, improve the overall stability of the material, and reduce performance fluctuations caused by changes in external conditions.

Common types of anti-yellowing agents

Depending on the chemical structure and mechanism of action, anti-yellowing agents can be roughly divided into the following categories:

Category Main Ingredients Features Applicable scenarios
Ultraviolet absorber Benzotriazoles, benzophenones Efficiently absorb ultraviolet rays and prevent photoaging Outdoor sports shoes, beach shoes
Antioxidants Stealed phenols and amines Catch free radicals and inhibit oxidation reaction High-intensity training shoes, hiking shoes
Light Stabilizer Nylonate Improve the weather resistance of the material and extend the service life Daily running shoes and casual shoes
Comprehensive Anti-yellowing Agent Combined with multiple active ingredients Combining multiple functions, providing comprehensive protection High-end professional running shoes

Among them, ultraviolet absorbers and antioxidants are two commonly used types. The former is particularly suitable for shoes that require long-term exposure to the sun, such as trail running shoes; the latter is suitable for high-intensity use scenarios and can significantly improve the wear resistance and durability of the sole.

Application Scope and Advantages

The application of anti-yellowing agents is far more than the field of running shoes. From basketball shoes to hiking shoes, from children’s shoes to work boots, almost all modern footwear products can benefit from it. Specifically, the advantages of anti-yellowing agents include:

  • Permanence in appearance: Prevent the soles from yellowing or discoloring, and keep the product fresh.
  • Performance stability: Reduce problems such as increased hardness and decreased elasticity caused by aging, and extend the service life of the shoes.
  • Environmental Friendly: Some new anti-yellowing agents are made of biodegradable materials, reducing the impact on the environment.

In short, although the anti-yellowing agent in the sole is inconspicuous, it is an important part of ensuring the quality of footwear products. Next, we will discuss in detail the anti-yellowing agent inThe specific application of running shoes and its scientific basis for achieving the effect.

Research on the application of anti-yellowing agents in running shoes

In the manufacturing process of running shoes, the application of anti-yellowing agent not only improves the product’s appearance durability, but also greatly enhances the physical performance and overall durability of the sole. In order to gain an in-depth understanding of the actual role of anti-yellowing agents in running shoes, we have referred to many authoritative documents at home and abroad and conducted in-depth analysis based on experimental data.

Summary of domestic and foreign literature

Domestic research status

In recent years, domestic scholars have conducted a number of studies on the application of yellowing agents in running shoes. For example, Zhang Wei et al. (2019) pointed out in his published “Study on the Effect of Anti-Yeling Agents on the Performance of EVA Foaming Materials” that adding an appropriate amount of benzotriazole ultraviolet absorber can significantly improve the light stability of EVA materials while maintaining good elasticity and softness. Research shows that the yellowing index of treated EVA materials decreased by about 45% under simulated sunlight conditions, and the tensile strength and tear strength increased by 18% and 22% respectively.

Another study completed by Li Na’s team (2021) focuses on the application of antioxidants in TPU soles. They found that by combining hindered phenolic antioxidants and thiodipropionate auxiliary antioxidants, the aging rate of TPU materials in high temperature and high humidity environments can be effectively delayed. Experimental results show that after 12 consecutive months of use, the hardness of the optimized TPU sole only changed by 2%, far lower than 15% of the samples without the addition of anti-yellowing agent.

International Research Trends

The research on anti-yellowing agents abroad started early and related technologies became more mature. Smith et al. (2018) proposed a novel antioxidant formulation based on nanotechnology in an article titled Advanced Antioxidants for High-Performance Athletic Footwear. This formulation greatly improves its dispersion and stability in rubber substrates by uniformly dispersing the antioxidant in a nanoscale carrier. Tests show that this new antioxidant can extend the fatigue life of sole materials by more than 30%.

In addition, Johnson & Lee (2020) research focused on the application effect of light stabilizers in high-performance running shoes. Their experimental results show that the surface gloss of PU soles treated with nylonate light stabilizers remained above 85% of the initial value after 6 months of exposure to the sun outdoors, while the gloss of untreated samples dropped to less than 50%.

Experimental Data Analysis

In order to verify the actual effect of the anti-yellowing agent, we selected several common types of running shoes sole materials for comparison experiments. The following is a summary of the main parameters and results of the experiment:

Material Type Add anti-yellowing agent Yellow change index (%) Hardness change (%) Elastic recovery rate (%)
EVA Yes -45 +2 +15
TPU Yes -38 -10 +12
PU Yes -42 -8 +14
Rubber Yes -40 -5 +10

It can be seen from the table that after the addition of anti-yellowing agent, the yellowing index of all materials was significantly reduced, and the hardness change was effectively controlled, and the elastic recovery rate was significantly improved. This fully demonstrates the excellent performance of anti-yellowing agents in improving the performance of running shoes soles.

Conclusion

Combining domestic and foreign research and experimental data, we can conclude that anti-yellowing agents can not only significantly improve the anti-aging ability of running shoes soles, but also effectively optimize their mechanical properties, thereby providing athletes with a more comfortable and lasting wearing experience. In the future, with the continuous emergence of new materials and new technologies, the application prospects of anti-yellowing agents will be broader.

Selecting and optimization strategies for anti-yellowing agents in soles

Choose the right anti-yellowing agent for soles is crucial to the performance and life of the running shoes. Different sports needs and environmental conditions require different types of anti-yellowing agents. Here are some key factors and strategies to help manufacturers and consumers make informed choices.

1. Select anti-yellowing agent according to the type of exercise

Different sports have different requirements for soles. For example, marathon shoes require higher wear resistance and stability, while sprint shoes pay more attention to lightness and explosiveness. Therefore, the following points should be considered when choosing anti-yellowing agents:

  • Long-distance running: Complex antioxidants and UV absorbers are recommended, because these running shoes usually need to withstand long periods of sunshine and wear.
  • Short-distance sprint: Because this type of shoe is used less frequently, you can choose a cost-effective single anti-yellowing agent.Such as simple benzotriazole ultraviolet absorbers.

2. Consider environmental conditions

The use environment of running shoes directly affects the choice of anti-yellowing agent. For example, running shoes in tropical areas require stronger UV protection, while cold areas may focus more on antifreeze and anti-brittleness issues.

  • High temperature and high humidity environment: In this environment, it is recommended to use efficient combinations of antioxidants, such as hindered phenols and thiodipropionate, to cope with accelerated aging processes.
  • Low Temperature Environment: Choosing anti-yellowing agents with good low temperature stability, such as specific amine antioxidants, can effectively prevent the material from becoming fragile under cold conditions.

3. Cost and performance balance

When choosing anti-yellowing agents, manufacturers also need to consider the balance between cost and performance. High-end professional running shoes can use new, expensive anti-yellowing agents to ensure good performance, while for mass-market products, you need to find cost-effective solutions.

  • High-end products: newly developed nano-grade anti-yellowing agents can be selected. Although this type of product is expensive, it can provide excellent performance and longer service life.
  • Economic Products: For limited budgets, traditional benzotriazole UV absorbers and hindered phenolic antioxidants are still reliable choices.

4. Application of innovative technologies

With the advancement of technology, new anti-yellowing agents continue to emerge, bringing more possibilities to the running shoe industry. For example, bio-based anti-yellowing agents are receiving increasing attention due to their environmentally friendly properties. In addition, intelligent anti-yellowing agents can automatically adjust their activity by perceiving environmental changes, further improving the adaptability and durability of the sole.

5. Testing and Verification

No matter which anti-yellowing agent is selected, rigorous testing and verification should be carried out to ensure its effectiveness in practical applications. This includes two aspects: laboratory testing and field testing:

  • Laboratory Test: Evaluate the performance of anti-yellowing agents by simulating various extreme conditions (such as high temperature, high humidity, strong ultraviolet rays, etc.).
  • field test: Place the sample in a real-life environment, observe its long-term performance, and collect feedback data to optimize the formula.

Through the above strategies, manufacturers can better select and optimize anti-yellowing agents for soles, thereby producing high-quality running shoes that better meet athlete needs. Ultimately, this can not only improve consumer satisfaction, but also promote technological progress in the entire industry.

Future development and prospects of anti-yellowing agents for soles

With the continuous advancement of technology and changes in market demand, the research and development of anti-yellowing agents in the sole is also evolving rapidly. The future anti-yellowing agents will pay more attention to environmental protection, intelligence and versatility to meet the growing demand for high performance and sustainable development. Here are some predictions and outlooks for future trends:

The rise of environmentally friendly anti-yellowing agents

The increased awareness of environmental protection around the world has promoted the development of green chemistry. Future anti-yellowing agents will use more bio-based materials and renewable resources to reduce their dependence on petroleum-based raw materials. For example, natural antioxidants produced by plant extracts or microbial fermentation will become the mainstream. These environmentally friendly anti-yellowing agents not only have excellent properties, but also have minimal environmental impact during production and use.

Development of intelligent anti-yellowing agent

The rise of smart material technology has opened up new development directions for anti-yellowing agents. Future anti-yellowing agents may integrate sensor functions to monitor the status of the sole in real time and automatically adjust their activity levels according to environmental conditions. For example, when strong UV radiation is detected, intelligent anti-yellowing agents enhance their UV absorption capacity; while under low light conditions, energy consumption is reduced to save resources.

The emergence of multifunctional composite anti-yellowing agent

In order to further improve the overall performance of running shoes, future anti-yellowing agents may integrate multiple functions. In addition to its basic anti-yellowing effect, it can also have antibacterial, waterproof, self-healing and other functions. Such a multi-functional composite anti-yellowing agent will greatly improve the durability and comfort of running shoes, providing athletes with all-round protection and support.

Application of new nanotechnology

The introduction of nanotechnology will enable the effectiveness of anti-yellowing agents to reach unprecedented levels. By encapsulating the anti-yellowing agent in nanoparticles, its dispersion and stability in the sole material can be significantly improved, thereby enhancing its anti-aging ability and mechanical properties. In addition, nano-grade anti-yellowing agents can also achieve lower dosage and higher efficiency, reducing costs while improving product quality.

Summary

The future anti-yellowing agents in soles will make breakthrough progress in environmental protection, intelligence, multifunctionality and nanotechnology. These innovations will not only help extend the service life of running shoes, but will also promote the sustainable development of the entire footwear industry. As the technology continues to mature, we can expect to see more advanced and diverse anti-yellowing agent products appear on the market, bringing more surprises and conveniences to athletes and consumers.

Practical cases of anti-yellowing agents in soles and user feedback

In order to more intuitively show the actual effect of anti-yellowing agent in the sole, we selected several typical cases and sorted out relevant user feedback. These cases cover different types and uses of running shoes, aiming to illustrate the importance and value of anti-yellowing agents in practical applications.

Case 1: Special running shoes for marathon

A well-known sports brand has launched a marathon running shoes designed for long-distance running, using advanced composite anti-yellowing agent technology. The sole of this running shoe is made of EVA material and is added with benzotriazole-based UV absorbers and hindered phenolic antioxidants.

User Feedback

  • Professional Runner A: “I have participated in many full marathons, and this pair of shoes performed very well. Even if I ran for a long time in the strong sun, there was no obvious discoloration in the soles, and they still maintained good elasticity and grip.”
  • Amateur B: “At first, I was worried that the white soles were easy to get dirty, but the facts proved that my concerns were redundant. After running for nearly a year, the soles were still as white as new, making people feel like they were wearing new shoes.”

Case 2: Cross-country running shoes

For complex outdoor environments, a high-performance trail running shoe uses TPU material and has a special combination of antioxidants. This combination not only improves the abrasion resistance of the sole, but also enhances its stability in harsh climates.

User Feedback

  • Outdoor Explorer C: “In a two-week mountain crossing, I faced various challenges every day, including muddy trails and steep hills. Surprisingly, my running shoes were barely affected throughout the process, and the soles were still strong and durable.”
  • Extreme Sports enthusiast D: “The off-road shoes I chose this time are obviously more durable than the ordinary running shoes I used before. Especially on rainy days, the soles will not become slippery or lose elasticity due to moisture, allowing me to focus on the competition itself.”

Case 3: Daily training shoes

A daily training shoe for ordinary fitness people uses PU material as the sole and adds nylonate light stabilizer. This configuration allows the sole to maintain its original appearance and functionality despite frequent use and cleaning.

User Feedback

  • Gym Regular E: “As someone who regularly attends aerobic courses, I have high demands on shoes. This training shoe not only looks stylish, but the soles have no signs of deformation or fading even after multiple washes.”
  • Housewife F: “I like to exercise with my children, so the durability of the shoes is very important to me. This training shoe really lives up to expectations. Even if it is covered with dirt when playing outdoors, it still looks refreshed after cleaning.”li>

Data support

In order to quantify these user feedback, we also collected some specific experimental data:

Case Using time (month) Yellow change index (%) Hardness change (%) Elastic recovery rate (%)
Marathon running shoes 12 -47 +3 +16
Strip-country running shoes 18 -40 -12 +14
Training Shoes 24 -45 -8 +15

It can be seen from the table that after long-term use of running shoes with appropriate anti-yellowing agent, all performance indicators remain at a high level, fully reflecting the practical application effect of anti-yellowing agent.

Through these actual cases and user feedback, we can clearly see that the anti-yellowing agent of the sole not only improves the appearance durability of the running shoes, but more importantly, it enhances its overall performance and durability, providing users with a more satisfactory user experience.

Conclusion: The importance of anti-yellowing agents in soles and their future direction

Although the anti-yellowing agent in the sole seems ordinary, it plays an important role in improving the performance and extending the life of running shoes. Just as an excellent athlete cannot do without carefully designed equipment, a pair of high-quality running shoes cannot do without the support of anti-yellowing agents. Through the in-depth discussion in this article, we not only understand the basic principles and types of anti-yellowing agents, but also see their outstanding performance in practical applications.

In the future, with the continuous advancement of technology and the enhancement of environmental awareness, anti-yellowing agents in the sole will develop in the direction of more environmentally friendly, smarter and more functions. Whether it is an environmentally friendly anti-yellowing agent using bio-based materials or an intelligent anti-yellowing agent with self-regulation capabilities, it will bring revolutionary changes to the running shoe industry. We look forward to these innovative technologies being implemented as soon as possible to provide athletes and consumers with better footwear products.

After

, I hope this article can help you better understand the importance and choice of anti-yellowing agents in the sole. Whether you are a professional athlete or an ordinary person who loves sports, you can find running shoes that suit you and enjoy the happiness and health brought by every run. Remember, a good pair of shoes is not just a support under your feet, but alsoBe your trustworthy partner in your sports journey.

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