The variety of soccer balls refers to the size, design and weight differences between models. 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 they are manufactured from lightweight plastic that keeps the balls dry. Synthetic leather is the most commonly used, being made of poly vinyl chloride or PVC and polyurethane. Even the types of artificial leather that soccer balls are manufactured of are too many in number to know and differentiate.
The specific features in the exterior cover of soccer balls consist of several segments known as panels. 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 Scotland and England. Soccer balls create nearly perfect spheres once the panels are sewn together and inflated.
Between the external covering and the internal bladder that holds the air, soccer balls have some special material incorporated, which is called the lining. These intermediary layer can be made of polyester or laminated cotton, thus contributing to the strength and the bounce properties of the finite product. In the professional design of soccer balls, up to five different linings can be used, although practice balls include fewer linings.
Differences of material do exist in the structure of the bladders as well. Soccer balls can be manufactured either from latex or butyl. While the surface tension brought by latex or natural rubber is unparalleled, the tiny pores allow deflation over a certain period of time. In order to keep the ball practical, you’ll have to re-inflate it at least once a week. Butyl soccer balls present no air retention problem, but require valves to keep the air inside.
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