With the popularity of running and people’s pursuit of sports comfort, the design and material selection of running insoles have become crucial. Among many materials, EVA (ethylene vinyl acetate copolymer) block foam stands out for its unique properties in the manufacture of running insoles. This article will delve into what kind of EVA Block Foam to choose when manufacturing running insoles, as well as the specific numerical requirements in terms of hardness, density and thickness. At the same time, it will analyze the performance of running insoles made of EVA Block Foam and its comparison with traditional materials. Comparative advantages.
1. Selection of EVA Block Foam
When manufacturing running insoles, the hardness, density and thickness of EVA Block Foam are key factors to consider.
Hardness: For running insoles, EVA Block Foam with a Shore hardness between 30A and 50A is usually chosen. This hard foam can provide proper cushioning and support, reducing the impact on your feet when running.
Density: The density of EVA Block Foam is usually between 0.35g/cm³ and 0.55g/cm³. In this density range, foam is both lightweight and durable, making it suitable for running insoles.
Thickness: The thickness of the insole is usually customized according to the shoe type and user needs. The common thickness range is between 5mm and 15mm. Thicker insoles provide better cushioning, while thinner insoles are more suitable for runners looking for a lightweight feel.
2. Performance of EVA Block Foam running sports insoles
Excellent cushioning performance: EVA Block Foam has excellent cushioning performance, which can effectively reduce the impact of the ground on the feet during running and reduce the risk of injury.
Good support: Appropriate hardness and density enable EVA Block Foam to provide stable support and help runners maintain correct posture during exercise.
Lightweight and portable: The lightweight nature of EVA Block Foam allows running insoles to maintain performance without increasing the overall weight of the shoe.
Good breathability: EVA Block Foam has a certain degree of breathability, which helps keep the inside of the shoe dry and reduces the feeling of moisture on the feet.
3. Comparison of the advantages of EVA Block Foam and traditional materials
Performance advantages: Compared with traditional materials, EVA Block Foam has better cushioning and support properties, and can provide better sports protection.
Environmentally friendly advantages: EVA Block Foam is an environmentally friendly material that can be recycled and reused, reducing resource waste and environmental pollution.
Cost advantage: As EVA Block Foam production technology matures and is produced on a large scale, its cost gradually decreases, making running insoles made with EVA Block Foam more competitive in price.
In summary, EVA Block Foam, as a high-performance, environmentally friendly and economical material, has significant advantages in the manufacturing of running insoles. By rationally selecting parameters such as hardness, density and thickness, running insoles that both meet ergonomic requirements and have excellent performance can be produced, providing runners with a more comfortable and safer sports experience.