Making a Basketball consists of 4 phases
Each of the four phases a basketball goes through during production helps to guarantee that the ball functions as planned. Construction of the ball’s interior, shaping of the interior, creation and application of the ball’s cover, and testing and inspection round out the four-step procedure.
The Ball’s Inner Bladder
The internal bladder, which is a piece of black butyl rubber, is what makes up a basketball’s core. Moreover, the ball’s bounce is successfully provided by butyl rubber. The butyl rubber is melted into flat panels, which are then joined to form a ball-like shape. Furthermore, the bladder has a 1-inch hole punched into it to accommodate the insertion of the air filler tube. The bladder is inflated, and the first phase of testing is complete if the bladder remains inflated for 24 hours.
Shaping the Ball’s Interior
Although the bladder is spherical, it is somewhat asymmetrical. Basketballs must be shaped with the aid of a machine that wraps polyester or nylon threads around the inner bladder in order for them to have a consistent shape and size. The ball’s spherical shape and resistance to deformation are produced by the threads. Some balls are produced with higher-quality threads, which enhances the ball’s performance. Professional balls are shaped with nylon thread, while street balls are often made with polyester thread.
The Ball’s Cover
Different types of materials can be used to create a basketball’s cover. The finest leather is used to cover the balls. Rubber, composition, and synthetic rubber are further materials. Unrolled, the cloth is then divided into six panels that will eventually come together to surround the ball. However, any stamped or embossed markings are applied to the panels before they are put on the ball. The panels are then sewn together around the ball if they are made of leather.
Glue is used to secure synthetic rubber, rubber, and composite panels. After the panels have been glued to the ball, stickers, information, and foil marks are added by hand. The finished balls have a circumference of around 29.5 inches and weigh 20 to 21 ounces. Then the balls are then filled with air, left alone for a further 24 hours, and checked to determine if they are still holding air.
Inspection and Testing
Basketballs often undergo a final inspection and testing procedure in addition to the two tests performed during manufacture to check for air retention. The balls’ bounce is examined to determine whether they will bounce to a particular height at a particular inflation pressure. Moreover, the ball must rebound up to 52 to 56 inches when dropped from a height of 72 inches. The artwork and decals are examined as minor details. Furthermore, the panels are checked if they are free of any excess glue. After the ball has undergone a thorough inspection, it is deflated and packaged either in a box or a polyethylene bag for distribution.