In the early stage, a ping pong ball is made of rubber covered with cloth. Then the material gradually replaced by celluloid. However, the celluloid production is on declining and is gradually replaced by the non-celluloid ball that is made of poly-plastic material. We have been asked how to choose a good ping pong ball.
It can be quite difficult if you are not sure what you are looking for. Firstly, the thing to look for is to ensure the ball does not have a seam around the middle of it that is visible.
If you can see that seam you can reject that ball straight away. That ball will often have a flat spot around the seam area. The second thing to look for is how firm the ball is.
You can try to press the ball to feel the level of firmness.
If the ball caves in on the side with the press, then it may not a good quality one. With this trainer ball, you can see that the same amount of pressure and the ball does not budge. That is what you are looking for in the firmness of the ball.
And this 3-star ball again you can put quite a lot of pressure and the ball will not cave in. How much pressure is put on a ball? If you grab your thumb and push quite firmly so that you are going into the bone, that is the amount of pressure that you are looking for the ball to withstand.
The third thing to look for is how round the ball is.
Now by just taking a ball in your hand, it often quite difficult to see that it is perfectly round. The best way to do it is to spin the ball with your hand.
By looking at it from the top you can see if it has any wobbles in it. Think about spinning an egg and you can see the egg wobbles quite a lot.
Air Filled with Oxygen The ball is air-filled in order to get the required weight. Other materials used for filling the ball would make it heavier. A heavy ball would slow down the game and make it boring. The ball is normally filled with oxygen.
According to experts, oxygen allows the ball to bounce better and gives the proper weight for the required dimensions of the ball. The ball is usually made of celluloid which is one of the most inexpensive plastics. Celluloid gives the unique ivory white color of the ball. The finish of the ball is made such that it can grip the racquet better and enable the player to create a spin by swerving the bat in one direction or the other depending on the kind of spin he wants for the ball.
This technique can be used to deliver spectacular shots and spins. Colored Accepted for International Tournaments Most ping pong balls are yellow. International table tennis rules allow for two colors only during the game; white and yellow. The color yellow is preferred by many people because it is visible against any table color.
In an official game, yellow or white may be used depending on the color of the table top. Table tennis balls are made from many different types of plastics.
Some plastics get worn out after being used for a long period of time. Even celluloid balls can smash when they are hit when moving at a high velocity. More durable plastics are more expensive than the ones that wear off quickly.
You can buy a net or a return board or a dispenser to practice on your own. Buying online is by far the cheapest that you can get. There is currently one type of very famous balls called XuShaoFa which is created with innovative technology to become seamless plastic balls, you may want to know more of this ball which can be a very quality ball for you to play with.
Bounce The bounce of the balls: Celluloid: The least bounce is the plastic ball with seam. For the seamless ball, it is more uniform, and the energy loss during the stress process is also smaller.
Therefore, it can also produce a stronger rebound. At the same time, the new plastic ball with seam is having a bigger size, so it has some impact on the bounce of the ball, which makes it not bounce as high as the celluloid ball.
However, the difference between the two is only apparent after increasing the force conditions.
Sound There was an experiment carried out which throw the ball and let it fall vertically. In the silent environment, the sound of the plastic balls either with seam of seamless is stronger than the celluloid ball.
Besides, the plastic ball has the slowest sound attenuation, which means this ball has the longest vocalization time, followed by the plastic ball with seam. While the sound of traditional celluloid ball is short and concentrated.
Vibration The change in the feel of hitting the ball is caused by the change of the vibration. After all, when the ball is being hit, it will be transmitted to the player through vibration. Celluloid: The highest vibration intensity in the experiment was the plastic seamless ball, followed by the plastic with seam.
The celluloid ball is having the smallest vibration intensity.
The difference in the vibration amplitude between the plastic ball and the celluloid ball is almost can be negligible. Therefore, for a player who is extremely sensitive when using it may feel the vibration of the seamless ball. However, it is difficult for the player to feel the vibration at the level of human perception for the plastic ball with seam and the celluloid ball.
Seam, the surface of the ball and hardness. Luminance and color. Veer — A measurement of the roundness of the ball.
Size and sphericity. Weight conformity and regularity.