Title:
RACKET STRING AND PRODUCTION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2018/207418
Kind Code:
A1
Abstract:
This racket string comprises a core yarn 2, sheath yarns 4 provided outside same, and a surface resin layer 5 provided outside same. The core yarn 2 and sheath yarns 4 are integrated by fusion-bonding a hot-melt thread 3 interposed on the surface of the core yarn 2. The resin in the surface resin layer 5 is a solvent-free thermoplastic resin. The surface resin layer 5 has, on the surface thereof, protrusions and recesses formed along the sheath yarns 4. The sheath yarns 4 are preferably braids or wrap yarns. The difference in height between the protrusions and recesses on the surface of the surface resin layer 5 is preferably within the range of 1-100 µm. On the above basis is provided a racket string which has a low friction resistance and high durability.
Inventors:
KAIEDA KEI (JP)
SAKAMOTO TATSUKI (JP)
OHARA YOSHIYUKI (JP)
SAKAMOTO TATSUKI (JP)
OHARA YOSHIYUKI (JP)
Application Number:
PCT/JP2018/004719
Publication Date:
November 15, 2018
Filing Date:
February 09, 2018
Export Citation:
Assignee:
GOSEN KK (JP)
International Classes:
A63B51/02; D02G3/36; D02G3/44; A63B102/02; A63B102/04; A63B102/06
Foreign References:
| JP5593005B1 | 2014-09-17 | |||
| JPS6284472U | 1987-05-29 | |||
| JPH08500034A | 1996-01-09 | |||
| US6062014A | 2000-05-16 |
Attorney, Agent or Firm:
IKEUCHI SATO & PARTNER PATENT ATTORNEYS (JP)
Download PDF: