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We are committed to advocating for reducing the burden on the earth and promoting the recycling of environmentally friendly new materials.
  • Applications of TPR Soles in Modern Footwear

    Thermoplastic Rubber (TPR) soles have emerged as a versatile solution in footwear manufacturing, combining the flexibility of rubber with the processing advantages of plastics. As a cost-effective alternative to traditional vulcanized rubber, TPR soles offer unique benefits that make them suitable for various footwear categories. Their balanced properties of durability, traction, and ease of production have secured their position in both mass-market and specialized footwear segments.   1. Children's Footwear: Safety and Comfort Combined In children's shoe manufacturing, TPR soles are particularly valued for their flexibility and slip-resistant properties. The material's inherent shock-absorption characteristics help protect developing feet during active play, while its lightweight nature prevents fatigue. TPR's excellent grip on multiple surfaces reduces fall risks, making it ideal for school shoes and everyday children's footwear. The material's ability to be produced in bright colors through simple molding processes also appeals to the children's market segment.   2. Fashion and Casual Footwear: Aesthetic Versatility For fashion-forward footwear, TPR soles provide designers with numerous creative possibilities. The material can be easily molded into various textures and patterns, allowing for unique sole designs that complement upper materials. Unlike some rubber compounds that may yellow over time, high-quality TPR maintains its appearance throughout the shoe's lifespan. This characteristic, combined with good abrasion resistance, makes TPR a preferred choice for casual shoes that require both style and functionality.   3. Indoor and Athletic Footwear: Performance at a Value In gym and indoor sports shoes, TPR soles offer an optimal balance of traction and cushioning. The material provides sufficient grip for lateral movements while maintaining flexibility for natural foot flexion. For budget-conscious fitness enthusiasts, shoes with TPR soles present an affordable alternative to premium rubber compounds without significant performance compromise in indoor environments. The material's consistent performance across temperature variations ensures reliable traction in different indoor conditions.   4. Economical Footwear Solutions: Mass Production Advantages The footwear industry frequently utilizes TPR soles in value-priced products due to their manufacturing efficiencies. The thermoplastic nature of TPR allows for faster production cycles compared to traditional rubber vulcanization, significantly reducing costs. This processing advantage enables manufacturers to produce large quantities of durable footwear at competitive price points, making quality shoes accessible to broader consumer markets. The material's recyclability also aligns with growing sustainability initiatives in the industry.   TPR soles continue to play a vital role in global footwear production by offering an optimal combination of performance, aesthetics, and cost-effectiveness. From children's first shoes to budget-friendly fashion footwear, TPR provides reliable solutions that meet diverse market needs. As material science progresses, TPR formulations will likely evolve to address emerging industry demands, ensuring their relevance in future footwear innovations. The material's balance of practical benefits and manufacturing efficiencies guarantees its continued importance in both mass-market and specialized footwear segments. If you're interested in our products, please click www.yysolematerial.com.

  • Applications of Foam Soles in Modern Footwear

    Foam soles have revolutionized the footwear industry by offering lightweight cushioning, superior shock absorption, and enhanced comfort. Made from materials such as EVA (ethylene-vinyl acetate), Phylon, and PU (polyurethane), these soles cater to diverse needs—from high-performance sports to everyday casual wear. Their adaptability and energy-return properties make them a preferred choice across multiple footwear categories.   1. Running & Sports Shoes: Optimizing Performance Foam soles are widely used in athletic footwear due to their ability to absorb impact and reduce fatigue. In running shoes, EVA and Phylon foam provide a balance of softness and rebound, helping athletes maintain efficiency over long distances. Advanced foam compounds, such as compression-molded variants, offer improved durability while keeping the shoe lightweight. These materials are often engineered with specific densities to cater to different running styles, ensuring optimal support and energy return.   2. Sandals & Flip-Flops: Comfort for Casual Wear For open footwear like sandals and flip-flops, foam soles deliver a soft, flexible feel that molds to the foot’s shape. EVA foam is particularly popular in this category because of its buoyant, water-resistant properties, making it ideal for beachwear and summer footwear. The lightweight nature of foam also ensures that these shoes remain comfortable for extended wear, whether for leisurely walks or travel.   3. Slip-Ons & Orthopedic Footwear: Support and Relief In comfort and orthopedic shoes, foam soles play a crucial role in alleviating pressure on joints and improving gait. PU foam is often used in insoles and midsole layers due to its cushioning and long-term resilience. Some ergonomic designs incorporate memory foam for personalized arch support, making them suitable for individuals with foot conditions or those who spend long hours on their feet.   4. Skateboarding & Lifestyle Sneakers: Durability and Impact Resistance Skateboarding shoes and urban sneakers demand soles that can withstand repeated impacts while maintaining flexibility. Phylon and high-density EVA are commonly used in these applications because they offer a responsive feel without adding excessive weight. The foam’s ability to absorb shocks from jumps and tricks helps protect the wearer’s feet while ensuring stability during dynamic movements.   Foam soles have become indispensable in modern footwear, offering unmatched comfort, versatility, and performance. From high-intensity sports to therapeutic footwear, their applications continue to expand with advancements in material science. As sustainability and smart technology shape the future of footwear, foam soles will remain at the forefront of innovation, meeting the evolving demands of consumers worldwide.   If you're interested in our products, please click www.yysolematerial.com.

  • Applications of Rubber Soles in Modern Footwear

    Rubber soles are among the most essential components in footwear manufacturing, valued for their durability, flexibility, and superior traction. These soles are engineered to perform in diverse environments, making them suitable for everything from high-intensity sports to hazardous work conditions. Their adaptability ensures that they meet the demands of various industries while providing comfort and safety to wearers.   1. Athletic Footwear: Enhancing Performance Rubber soles play a critical role in athletic shoes, where grip and shock absorption are paramount. Different sports require specialized sole designs—deep treads for trail running, multidirectional patterns for court sports, and lightweight yet durable compounds for long-distance running. Advanced rubber blends, such as carbon-reinforced and blown rubber, are often used to optimize performance. These materials help reduce fatigue, improve stability, and extend the lifespan of sports footwear.   2. Industrial and Safety Footwear: Protection and Durability In demanding work environments, rubber soles provide essential safety features, including slip resistance, oil resistance, and protection against electrical hazards. Industrial boots often incorporate nitrile rubber or vulcanized rubber to withstand harsh chemicals and extreme temperatures. These soles are designed to meet strict safety standards, ensuring reliable performance in construction, manufacturing, and other high-risk occupations.     3. Outdoor and Hiking Footwear: Tackling Rough Terrain For outdoor enthusiasts, rubber soles are indispensable. Hiking boots and trekking shoes rely on rugged rubber compounds with deep treads to provide traction on rocks, mud, and wet surfaces. These soles are often paired with reinforced toe and heel areas to withstand abrasion and impact, ensuring long-lasting performance in challenging conditions.     Rubber soles remain a fundamental element in footwear due to their versatility, durability, and performance across various applications. From athletic and safety footwear to casual and outdoor shoes, they provide the necessary support, traction, and protection. As technology advances, rubber soles will continue to adapt, offering even greater functionality and sustainability to meet the needs of modern consumers.   If you're interested in our products, please click www.yysolematerial.com.

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We are committed to advocating for reducing the burden on the earth and promoting the recycling of environmentally friendly new materials.
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    We maintain a rigorous quality management system supported by our advanced testing and analysis laboratory. Every batch of material undergoes strict performance and consistency checks to ensure compliance with international standards and customer specifications.

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    Our R&D team possesses deep expertise in polymer science and material modification, continuously developing innovative solutions tailored to industry needs. Their technical proficiency enables us to address complex challenges in material applications effectively.

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    We actively promote sustainability through GRS-certified and bio-based materials, reducing reliance on virgin resources. Our eco-friendly products and processes align with global circular economy goals while maintaining high performance standards.

Our Latest News & Blog

We are committed to advocating for reducing the burden on the earth and promoting the recycling of environmentally friendly new materials.
27 April 2025 What Role Does Shrinkage-stoping Masterbatch Play in Industry
Shrinkage-stoping masterbatch helps makers control shrinking in materials. It is used during production. This special additive makes products better. It helps shapes stay correct and surfaces look smooth. Many industries use it to lower mistakes.   Shrinkage-stoping Masterbatch   What Is It Shrinkage-stoping masterbatch is a special additive for plastics and other materials. Makers put it into raw materials before making products. This masterbatch helps stop too much shrinking when things cool or set. If a product cools too fast, it might bend or get tiny cracks. Shrinkage-stoping masterbatch helps keep products strong and smooth.     Many industries use this additive. In the United States, companies must follow strict rules for plastics in cars, food packaging, and healthcare. For example, car makers need masterbatches that meet rules for recycling and being green. Some companies, like Cabot Corporation, make masterbatches with special certificates, like ISCC PLUS, to show they are safe and good for the earth.   Roles & Applications   Preventing Shrinkage Shrinkage-stoping masterbatch helps stop materials from shrinking. Makers add it to plastics during production. It controls how the plastic cools and sets. The masterbatch lets out gas and makes tiny cells inside the plastic. These cells help the product keep its shape and size. Products with this additive bend less and crack less. The masterbatch also makes surfaces smoother and stronger. Using shrinkage-stoping masterbatch keeps products safe in storage and shipping.   Product Quality   Shrinkage-stoping masterbatch helps products stay the right size and shape. It makes surfaces look and feel smoother. The masterbatch works with many plastics and only needs a little bit. This means products have fewer problems and last longer. It also helps products handle heat and pressure. Companies can meet tough quality rules and throw away fewer items. The footwear industry has widely adopted anti-shrinkage masterbatch in EVA formulations to improve product performance and manufacturing efficiency. This technology plays a crucial role in athletic footwear, where it enhances the dimensional stability of midsoles and other critical components during production and throughout the product lifecycle. Major sportswear brands have successfully integrated these advanced additives to achieve superior consistency in their premium performance footwear lines.   In casual and lifestyle footwear applications, anti-shrink masterbatch enables manufacturers to maintain precise product specifications while utilizing various EVA formulations. The technology proves particularly valuable for injection-molded and foamed components, where it helps minimize post-production deformation and ensures consistent product quality. These benefits have made it an essential solution for brands producing comfortable, durable everyday footwear.   The industrial and safety footwear sector benefits significantly from the enhanced durability provided by specialized anti-shrinkage additives. These formulations maintain their structural integrity under extreme temperature variations and demanding working conditions, making them ideal for protective footwear applications. The technology helps manufacturers meet rigorous international safety standards while delivering extended product service life.   Emerging applications continue to expand the use of anti-shrink masterbatch in footwear, including specialized medical footwear and sustainable product lines. The technology supports the development of wash-resistant orthopedic products and contributes to more environmentally friendly manufacturing processes. As footwear brands increasingly prioritize both performance and sustainability, anti-shrinkage solutions are becoming fundamental to innovative product development across all market segments. If you're interested in our products, please click www.yysolematerial.com.  
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  • What Makes Plastic Foaming Masterbatch Oil Resistant for Shoe Soles
    19 December 2025 What Makes Plastic Foaming Masterbatch Oil Resistant for Shoe Soles
    What Makes Plastic Foaming Masterbatch Oil Resistant for Shoe Soles   You need shoe soles that stand up to oil and keep their shape. Plastic foaming masterbatch uses high molecular polymers as carriers and blends in special additives to boost oil resistance. This smart mix helps your soles stay strong and resist swelling or breaking down in oily spots. You can use this product with EVA to make many kinds of shoes, like kitchen, mining, or factory footwear.   Key Takeaways Plastic Foaming Masterbatch enhances shoe soles with oil resistance, preventing swelling and maintaining shape in tough environments. Choosing the right polymer carrier is crucial for durability and oil resistance, ensuring your shoe soles last longer and perform better. Adjusting the dosage of the masterbatch allows you to customize cushioning and strength, fitting various shoe types from kitchen to mining. Oil resistant soles significantly reduce slip incidents, improving safety in workplaces and providing better traction on slippery surfaces. Investing in oil resistant masterbatch saves money over time by reducing shoe repairs and replacements, leading to better overall value.   Plastic Foaming Masterbatch Features Oil Resistant Additives You need shoe soles that can handle tough, oily environments. Plastic foaming masterbatch uses a special blend of additives and auxiliaries to boost oil resistance. These additives work with high molecular polymers to create a strong barrier. This barrier keeps oil from soaking into the shoe sole. When you use this masterbatch, you get foamed products that stay strong and flexible, even after contact with oil. The white granule form makes it easy for you to mix into your production process. You can count on a volume swelling ratio of less than 6% after 24 hours in isooctane. This means your shoe soles will not swell or lose their shape when exposed to oil. The masterbatch also resists 903 oil, which is important for shoes used in kitchens, factories, and gas stations. Polymer Carrier Selection Choosing the right polymer carrier is important for both oil resistance and the strength of your shoe soles. Plastic Foaming Masterbatch uses high-quality carriers that blend well with EVA. This ensures even mixing and reliable results. You can see how different carriers affect the final product in the table below: Polymer Carrier Type Effect on Mechanical Properties Effect on Oil Resistance Fillers (e.g., talc, calcium carbonate) Improves hardness and mechanical strength Enhances wear resistance Composite Polymers (e.g., TPU, EVA) Increases strength and resilience Improves overall durability Wear-resistant lubricants (e.g., carbon black, PTFE) Reduces surface friction, enhancing recovery Increases wear resistance and longevity   When you use the right carrier, you get shoe soles that last longer and perform better in oily conditions. The masterbatch works well with EVA, so you can use it for many types of shoes.   Tip: Dongguan Yiyuan Polymer Materials Co., Ltd. offers technical support and can help you choose the best carrier for your needs. You can also ask for a custom formula to match your product goals.   Foaming Performance Optimization Foaming performance affects how comfortable and durable your shoe soles feel. Plastic foaming masterbatch helps you get the right balance of cushioning and strength. The table below shows how foaming impacts shoe soles: Aspect Description Cushioning EVA foam gives excellent shock absorption, which reduces strain on your feet. Durability and Weather Resistance EVA foam is durable and stands up to tough environments, making your shoes last longer.     You can adjust the dosage of the masterbatch to get the performance you want. The recommended range is 1-5% for most EVA shoe soles, as shown here: Dosage Range Description 1-5% Recommended dosage for optimal oil resistance in EVA shoe soles, depending on customer requirements.     This flexibility lets you create soles that fit different needs, from soft kitchen shoes to tough mining boots. The masterbatch’s white granule form makes it easy to measure and mix, so you get consistent results every time. Oil Resistance Mechanism   Barrier Formation You want your shoe soles to block oil from getting inside. Plastic Foaming Masterbatch helps you do this by creating a strong barrier. The special additives in the masterbatch mix with the polymer structure. This forms a tight network that oil cannot easily pass through. When you use this masterbatch, you make shoe soles that keep their shape and strength, even when they touch oil. Note: A good barrier means your shoes last longer in kitchens, factories, and other oily places.   Chemical Stability You need shoe soles that do not break down when they meet oil. The masterbatch uses high molecular polymers that stay stable in harsh conditions. These polymers do not react with oil or lose their properties. The additives also help the material resist chemical changes. This means your shoe soles stay flexible and strong, even after many hours in oily environments. Here is a table that shows how chemical stability helps your shoe soles: Property Benefit for Shoe Soles No chemical reaction Soles do not crack or weaken Stable structure Soles keep their flexibility Long-lasting strength Shoes stay safe and comfortable   Prevention of Swelling and Degradation You want your shoe soles to keep their size and shape. Oil can make some materials swell or break down. Plastic foaming masterbatch stops this from happening. The additives and polymers work together to prevent oil from soaking in. This keeps the volume swelling ratio low. In tests, the masterbatch showed less than 6% swelling after 24 hours in isooctane. Your shoe soles stay reliable and do not lose their form, even after long use. You get: Less swelling No cracking Longer shoe life Benefits for Shoe Soles Durability and Longevity You want shoe soles that last a long time, even in tough places. When you use pastic foaming masterbatch, you help your shoes resist oil and wear. This means your soles do not crack or swell, even after many hours on the job. You will notice that your shoes need less repair and replacement. For example, kitchen shoes and mining boots often face oil and grease. With this masterbatch, these shoes stay strong and keep their shape. Factory footwear also benefits because the soles do not break down quickly. You save money and time because you do not have to replace shoes as often.   Shoes made with oil resistant materials can handle daily stress and harsh conditions. This leads to a longer product life and less maintenance.   Safety and Anti-Slip You need shoes that keep you safe on slippery floors. Oil resistant soles help prevent slips and falls. When you add an anti slip agent to EVA shoe soles, you can see big improvements in safety. Studies show that this upgrade can reduce slip incidents by up to 70%. Lab tests and real-world trials report higher traction and better grip. Many workplaces have seen fewer accidents after switching to these materials. Up to 70% fewer slip incidents in kitchens and factories Higher COF (Coefficient of Friction) values in lab tests Better traction in field tests and workplace programs   Application Versatility You can use these oil resistant soles in many types of shoes. Kitchen shoes, mining boots, and factory footwear all benefit from the same technology. The masterbatch works well with EVA, so you can make shoes for cooks, miners, and factory workers. You can also adjust the formula to fit special needs. This flexibility means you can create shoes for many jobs and environments.
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  • Why Your Injection Line Needs Custom Modified TPR/TPE Compounds (Not Just Generic Granules)
    05 December 2025 Why Your Injection Line Needs Custom Modified TPR/TPE Compounds (Not Just Generic Granules)
    In shoe sole manufacturing, the raw material dictates 70% of the product quality and production efficiency. Many injection factories struggle with high rejection rates flow marks, shrinkage, or poor bonding often blaming the mold or the machine. However, the root cause is frequently the raw material formulation. As a specialized supplier of Polymer Plastic Elastomers and Modified Raw Materials, YYSoleMaterial - Dongguan Yiyuan Polymer Materials Co., Ltd doesn't just sell generic TPR/TPE granules. We engineer materials that optimize your injection molding process.     1. The Power of "Modification": Solving Processability Issues Standard, off-the-shelf TPR granules often lack the specific flow properties needed for complex molds.   High Flowability (High MFI): We modify the melt flow index (MFI) of our TPR compounds. This allows the material to fill intricate molds faster and at lower pressures, reducing cycle time and energy consumption.   The Benefit: Faster production cycles = More pairs produced per hour.   2. Bonding Solutions: The "Polarity" Secret One of the biggest headaches for two-color injection molding (Double-color soles) is delamination, the two materials won't stick.   Our Solution: We provide Chemically Modified TPE/TPR with enhanced polarity.   The Result: Superior chemical bonding with PU, TPU, or other substrates without the need for excessive primers or roughing agents.   3. Aesthetics & Durability: Anti-Yellowing & Matte Finish For export orders, especially white sneaker soles, yellowing is a disaster.   UV Stabilization: Our modified raw materials are compounded with high-grade anti-yellowing agents (Grade 4-5 UV resistance), ensuring the soles stay white even after months of storage.   Surface Texture: We can adjust the compound to achieve a "dry touch" (matte) finish directly from the mold, eliminating the cheap "greasy" look of standard plastic materials.   4. Troubleshooting Table: Material Solutions for Common Defects Injection Defect Potential Material Cause YY Sole Material Solution Flow Marks / Silver Streaks Moisture in granules or poor flow Desiccant Master batch or High-Flow TPR modification Shrinkage / Sink Marks Improper density or filler ratio Low-Shrinkage Compound with optimized filler dispersion Poor Adhesion (Peeling) Low polarity compatibility Grafted Polar Modified TPE for enhanced bonding Sticky Surface Oil migration from compound Non-Migrating Oil Formulation 5. Customization: We Formulate for You We understand that a Vertical Rotary Machine behaves differently from a Horizontal Injection Machine. YY Sole Material offers: Hardness Customization: 30 Shore A (Super Soft) to 95 Shore A (Rigid). Density Control: 0.90 g/cm³ to 1.20 g/cm³ (Lightweight vs. Cost-effective). Color Matching: Precise Pantone matching for master batches and pre-colored compounds.   Additives products including: High Rebound TPE Thermoplastic Elastomer Multi-Compatible High‑Performance Shock-Absorbing Masterbatch A-2 White Plastic Oil resistant Foaming Masterbatch Pellet ...   Material Science Drives Profitability Don't let generic raw materials limit your factory's potential. Switch to modified, engineered polymer materials that decrease waste and increase output. Facing a production challenge? Send us a sample of your current defect or your target requirements. Our R&D team will formulate a sample specifically for your trial run. Contact Our Material Engineers
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