The key element for one of the most popular sports in the world, soccer balls come in different designs, sizes and weights. The diversity also extends to the materials soccer balls are made of and the features of the final product. Here are a few technical details on the structure and the making of soccer balls that many of us know nothing of when having fun in a nice game.
Several covering layers are included in the surface structure of the soccer balls and they are not made of natural leather as it may appear at first sight but rather from synthetic materials that keep the balls lightweight even when it’s damp outside. Poly vinyl chlorine or PVC and polyurethane or PU are the main materials used for synthetic leather production. Even the varieties of artificial leather remain a mystery to most soccer fans, because these patterns too, come in great number of varieties.
Depending on the design of the soccer balls, the various segments of the exterior cover, also known as the panels, present specific features. There can be 32, 26 or 16 panels with the mention that 32-panel variant is normally used in the majority of official games. Yet, the others are encountered with some leagues in England and Scotland. After being sewn together and inflated, the panels create the nearly perfect sphere that we call soccer ball.
A special material called the lining is used between the internal bladder that holds the air and the outer covering. Laminated cotton or polyester are normally used for the intermediary layer, and they play an important part in the bouncing and strength features of the ball. For professional soccer balls, up to four or five linings are used, while promotional items and practice balls contain fewer such structures.
As for the bladders that actually keep the soccer balls inflated, differences do appear here as well, particularly because of the nature of the materials. Soccer balls can be made either from latex or butyl. While the surface tension brought by latex or natural rubber is unparalleled, the tiny pores in the structure of this material cause the soccer balls to deflate. In order to keep the ball practical, you’ll have to re-inflate it at least once a week. Butyl soccer balls on the other hand have an excellent air retention capacity and rely on valves for this process.
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