The ball used in football (soccer) is called a football or soccer ball. Law 2 of the game specifies the ball to be an air-filled sphere with a circumference of 68–70 cm (or 27–28 inches), a weight of 410–450 g (or 14–16 ounces), inflated to a pressure of 60–110 kPa (or 8.5–15.6 psi), and covered in leather or "other suitable" material.
First of all Synthetic leather sheet are laminated with cotton and polyester layers to reinforce the ball's strength, then sheets are cutted into hexagonal and pentaagonal shapes. Inside the ball a bladder is placed, the bladers are usually made of either latex or butyl. After cutting the panels , Silk screen printing is done on the peices according to the design and requirements of the customers.
Then the pannels are Hand stitched with Pre Puches Stitch Holes togeather with a bladder inside the pannels, this way 32 Panels are held by 720 stitches in a soccer ball.
2007-03-28 07:51:07
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answer #1
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answered by kasiuleczek 4
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A soccer ball has two main components: a stitched cover and an air bladder.
The cover used to be made out of natural leather, but when it got wet, the ball would absorb water and become heavy. Nowadays, the ball is made from either plastic or a leather synthetic called PU Leather, which is cut into panels and stitched together or mechanically seam bonded.
Inside the cover, a rubber bladder is placed that holds the air pressure similar to a bicycle tire. The bladder is connected to the outside by a valve, and is inflated using a pump and a ball needle, similar to a hypodermic (or medical) needle.
2007-03-28 08:02:40
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answer #2
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answered by Kevin S 2
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PU leather.
2007-03-28 07:38:02
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answer #3
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answered by pirate captain 2
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leather
2007-03-28 09:24:36
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answer #4
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answered by Anonymous
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Mostly air.
2007-03-28 07:27:35
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answer #5
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answered by lunatic 7
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