MONOFILAMENT STRING FOR RACKET AND METHOD FOR MANUFACTURING SUCH A MONOFILAMENT STRING Russian patent published in 2021 - IPC D02G3/44 

FIELD: sports.

SUBSTANCE: invention relates to a monofilament string for a racket, such as a tennis racket, squash racket, badminton racket. The claimed string contains a core consisting of a single fiber and a shell surrounding the core and contacting the core. The core is made of the first material containing polyamide 6 and the first copolymer of polyamide 6 and polyamide 6.6, wherein the shell is made of the second material containing the second copolymer of polyamide 6 and polyamide 6.6. The first material has a higher tensile module than the second material. The present invention also relates to a method for manufacturing such a monofilament string by co-extrusion of the core and the shell and stretching the string obtained by co-extrusion.

EFFECT: invention makes it possible to manufacture a string with a core that provides high geometric stability of a monofilament string and the capability of strongly absorbing/dissipating mechanical forces applied to it that occur when the string is exposed to the ball, which leads to better ball control, along with a decrease in vibrations distributing through the net and the racket handle.

16 cl, 4 dwg