Thanh Trà
Thượng Tá
Văn bản của ITTF
INTERNATIONAL TABLE TENNIS FEDERATION
Equipment Committee
16 April 2013
Subject: Poly Ball
As approved by the BoD 2012, the poly balls will be introduced at ITTF events as of July 2014.
The new balls will differ from the present balls used, since they are made of plastic instead of celluloid.
So far we know about two production methods; one by gluing two halved together – as for celluloid balls – and the second one by a different process - called rotational moulding.
Hence, these balls will behave a bit differently from our present ones. We have had some poly balls without seam for testing and comparison with celluloid balls. You can find the results of the testing in following pages, as well as, on our website at the right column of the Equipment/Ball Session, the file called “Poly – Celluloid Balls testing”.
We would like to thank everyone who helped with conducting this testing and for agreeing to have the results published; ESN in Germany, Dr. Dirk Meyer and Konrad Tiefenbacher.
Odd Gustavsen
Chairman of the Equipment Committee
--------------------------------------------
Ở Việt Nam tình hình thế nào rồi các bác?
INTERNATIONAL TABLE TENNIS FEDERATION
Equipment Committee
16 April 2013
Subject: Poly Ball
As approved by the BoD 2012, the poly balls will be introduced at ITTF events as of July 2014.
The new balls will differ from the present balls used, since they are made of plastic instead of celluloid.
So far we know about two production methods; one by gluing two halved together – as for celluloid balls – and the second one by a different process - called rotational moulding.
Hence, these balls will behave a bit differently from our present ones. We have had some poly balls without seam for testing and comparison with celluloid balls. You can find the results of the testing in following pages, as well as, on our website at the right column of the Equipment/Ball Session, the file called “Poly – Celluloid Balls testing”.
We would like to thank everyone who helped with conducting this testing and for agreeing to have the results published; ESN in Germany, Dr. Dirk Meyer and Konrad Tiefenbacher.
Odd Gustavsen
Chairman of the Equipment Committee
--------------------------------------------
Ở Việt Nam tình hình thế nào rồi các bác?
