The bladder is wrapped and covered with nylon thread then covered with six rubber panels. The first basketball was manufactured in 1894 was made of laced leather and was about four inches larger than a soccer ball in circumference.
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The inside consists of a bladder the balloon like structure that holds air and the carcass.
How basketballs are made. For starters a ball begins as a leather shipment of 50 000 square feet to china. At a basketball s core is what s referred to as the interior bladder which is made from black butyl rubber. The inside of a basketball is made up a spherical bladder made of vulcanized rubber that holds air.
Butyl rubber effectively retains air and gives the ball its bounce. The bladder is made of butyl rubber and the carcass consists of treads of nylon or polyester. At the request of naismith it was created by albert goodwill spalding a former pitcher for the boston red stockings and chicago white stockings who had founded his namesake sports equipment company.
The outside covering of a basketball is made of synthetic rubber rubber composition or leather. The butyl rubber is melted into flat panels that are then attached together into the shape of a ball.