SHORT RUBBER REINFORCEMENT FIBER, RUBBER COMPOSITION CONTAINING SAID SHORT FIBER, AND POWER TRANSMISSION BELT

• Main Authors: ISE, Fumiaki, TAKAMI, Yuki, ENOKIZONO, Hirofumi, SAWAIRI, Tatsuya, KAWAHARA, Hiroo
• Format: Patent
• Language: English; French; German
• Published: 26.04.2017
• Subjects: BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVINGPURPOSES; BLASTING; CHAINS; ENGINEERING ELEMENTS AND UNITS; FITTINGS PREDOMINANTLY USED THEREFOR; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LAUNDERING; LIGHTING; MAKING GRANULES OR PREFORMS; MECHANICAL ENGINEERING; NATURAL OR ARTIFICIAL THREADS OR FIBRES; PERFORMING OPERATIONS; PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING; PREPARATION OR PRETREATMENT OF THE MATERIAL TO BESHAPED; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIALCONTAINING PLASTICS; SPINNING; TEXTILES; THERMAL INSULATION IN GENERAL; TRANSPORTING; TREATMENT OF TEXTILES OR THE LIKE; TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS,FABRICS, FEATHERS, OR FIBROUS GOODS MADE FROM SUCH MATERIALS; WEAPONS; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

Provided is a short rubber reinforcement fiber for short fiber-containing rubber compositions that are used for transmission belts for which friction transmission behavior has been stabilized and travel service life has been further improved. The present invention is: a short fiber, which is the product of cutting an adhesive-treated synthetic long fiber multifilament yarn and is used by dispersing in a rubber composition, the short fiber being characterized in that the percentage of the number of non-adhesive-treated single yarns is 0-5%; and a method for manufacturing said short fibers, the method comprising a step for immersing a sudare-woven product in which the synthetic long fiber multifilament yarns have been sudare-woven in an adhesive treatment solution and then pressing at a nip pressure of 1.2-5.0 MPa using nip rolls, and a step for cutting the sudare-woven product bundles obtained to a specified length.