JP5035654B2 - Ski wax - Google Patents

Description

  The present invention relates to a ski wax having excellent sliding performance.

The skiing performance of ski equipment (skis) in general skiers is not particularly problematic, but when it comes to competition, the skiing performance of ski equipment, especially skis, is a very subtle and important issue. As is well known, care and adjustment of ski equipment (skis) have been required with the aim of being able to run. Therefore, as an important care and adjustment, it is common sense not to wait for explanation that waxing the snow-contacting surface (sole) of the ski is indispensable.
Conventionally, ski wax is a fluororesin powder in which all commercially available products are based on mineral oil such as paraffin, oil and fat components such as beef tallow, metal soap, silicon resin powder or oil, polytetrafluoroethylene (PTFE) as an example. In addition, a mixture of other substances having lubricating performance has been provided.

  However, as a result of researches by the present inventor, the conventional wax is based on mineral oil such as paraffin or oil such as beef tallow as a base of the matrix. Even if a lubricant such as fluororesin is blended, the conclusion is that the performance of the base mineral oil and fat as a matrix appears as the main performance, and in the extreme, mineral oil such as paraffin and beef tallow It has been found that only the gliding performance of the oils and fats appears.

  Such a phenomenon is a characteristic that usually appears in the conventional ski wax, and the high lubrication performance, that is, the sliding performance of the metal soap, the silicon resin, and the fluororesin, which are mixed with great effort, is impaired.

  According to the present inventor's earnest investigation to identify the cause, this phenomenon is caused by minerals such as paraffin and the like that have high lubricating performance such as metal soap, silicon resin, fluororesin, etc. As a result of being embedded in oils and fats such as beef tallow, it has been found that sufficient performance cannot be exhibited.

  The problems to be solved can be completely extracted without hindering the lubrication performance (sliding performance) of additive compounds such as metal soap, silicon resin, fluororesin, etc. that should be originally demonstrated, And it is providing the ski wax which performance improves more stably.

  In particular, the present invention is a polytetrafluoroethylene (PTFE) which is used alone without blending in a fine powder of polytetrafluoroethylene (PTFE) among fluororesins having physical stability and excellent lubricating performance. ) Ski wax that prevents the embedding of polytetrafluoroethylene (PTFE) particles with oil and mineral oil, and adhesion fixing by not adding the original performance, oil and fat, and mineral oil, and exerts lubricity more strongly. It is characterized by. That is, the technical idea of the present invention is not limited to ensuring the original function of polytetrafluoroethylene (PTFE) having extremely good lubricating performance by using polytetrafluoroethylene (PTFE) powder particles alone, Since the polytetrafluoroethylene (PTFE) powder particles are temporarily held by oils and fats and mineral oil so that they can move freely without being fixed (fixed and held) to the rough surface of the sole of the ski, As a result of providing a function like a bearing in a typical machine component to the interface between the ski sole surface and the snow surface, the lubrication performance, that is, the sliding performance is dramatically improved. This is achieved by the fine rough surface of the sole portion of the ski, and the sole portion is usually made of polyethylene resin, polyester resin, nylon resin, etc., and its surface is about 20 to 60 microns. Even if it is a polytetrafluoroethylene (PTFE) powder particle that has a roughness and is not naturally compatible with other substances, if it is rubbed like wax, it will be easier due to the electrostatic field generated by the friction at the time of rubbing. Since the degree of freedom of polytetrafluoroethylene (PTFE) powder particles is not hindered during sliding during use, high lubrication performance (sliding performance) is more reliably demonstrated and sliding performance is improved. It will improve.

  The ski wax of the present invention has excellent water repellency, lubrication performance resulting from a small coefficient of friction, and lubrication behavior of polytetrafluoroethylene (PTFE) particles not fixed with oil or mineral oil, which polytetrafluoroethylene (PTFE) has. As a result, the sliding performance during use has been dramatically improved.

  From the above, the present invention is a ski wax that employs polytetrafluoroethylene (PTFE) powder particles that are physically stable and have lubricating performance with a low coefficient of friction, and this polytetrafluoroethylene (PTFE). The powder particles are stable without any change in shape due to frictional heat during skiing, provide high lubrication performance, and have a high degree of freedom in the rough surface of the snow contact part (sole surface) of the ski. Therefore, the lubricity is extremely high, and the sliding performance is greatly improved. Since the sole of the ski is usually finished to about 20 microns to 60 microns, it is desirable that the ski is a polytetrafluoroethylene (PTFE) powder having a main particle size of 20 microns or less. If the main particle size is finer than 20 microns, there is no problem when temporarily rubbing against the rough surface of the sole, and there is no problem in performance. It causes problems and is not preferred.

  Polytetrafluoroethylene (PTFE) powder particles obtained by pulverization after synthesis with a softening point of 316 ° C. or higher, a main particle size of 2.5 to 3.5 microns, and a maximum particle size of 12 microns (impurity 0.2% or less) A ski wax of the present invention was used alone.

  The ski wax of the present invention is applied to the running surface (sole portion) of the ski finished with a rough surface having a depth of 40 microns with a cotton swab brush and rubbed into the rough surface of the sole so as to be rubbed with a waste cloth. did. At this time, an electrostatic field of about 20,000 volts is generated on the sole surface due to rubbing friction, and the ski wax made of polytetrafluoroethylene (PTFE) powder particles can move when a large force is applied. As a holding state, it was kept in the concave portion of the rough surface of the sole.

  This temporary holding state is not completely fixed and does not fall off under normal handling, but it indicates that it can move when a force is applied during skiing. This is an effect that is indispensable for the present invention.

  In this way, when the sliding test was conducted with the ski with the adjusted sole, it was able to slide at a speed 1.43 times faster than that using a commercially available ski wax (paraffin 85%, metal soap 15%). The sliding performance life as a wax was maintained at 3.88 times. In comparison with other commercially available waxes (paraffin 90%, polytetrafluoroethylene (PTFE) powder 10%), an increase in sliding performance of 1.36 times was measured at sliding speed, and sliding as wax The performance life has also been improved by 4.05 times.

  Furthermore, the ski wax of the present invention also has an unexpectedly excellent effect of exhibiting a function that can eliminate the snowburn phenomenon (smoothing surface damage phenomenon well known among competitive skiers) due to frictional heat on the sliding surface. It was.

  Polytetrafluoroethylene (PTFE) powder granules (impurity 0.8% or less) obtained by pulverization after synthesis with a softening point of 316 ° C. or higher, a main particle size of 5.5 to 6.5 microns, and a maximum particle size of 22 microns A ski wax of the present invention was used alone.

  The ski wax of the present invention is applied with a cotton swab brush to a ski board in which beef tallow has been thinly applied (approx. 1 micron ultrathin film) to the running surface (sole portion) of the ski board finished to a rough surface having a depth of 20 microns. It was applied to the rough surface of the sole so that it was rubbed with a waste cloth. At this time, an electrostatic field of about 10,000 volts is generated on the sole surface by rubbing friction, and the ski wax made of polytetrafluoroethylene (PTFE) powder particles can move when a large force is applied. As a holding state, it was kept in the concave portion of the rough surface of the sole.

  At this time, although the ski sliding surface (sole portion) has a rough surface of 20 microns, the maximum particle size of the wax of Example 2 of the present invention is 22 microns, so particles larger than the rough surface depth can be rubbed and temporarily held. In other words, several% of the grains on the protruding particle size distribution do not contribute to the present invention.

  In addition, it was thought that if the beef tallow was previously applied to the ski surface, the ski wax of the present invention would stick to the tallow and the original function could not be achieved. Since it was smaller than the polytetrafluoroethylene (PTFE) powder particles, the performance as temporary holding was not greatly hindered.

  In this way, when the sliding test was carried out with the ski with the adjusted sole, it was possible to slide at a speed 1.30 times faster than that using a commercially available ski wax (87% paraffin, 13% silicone resin powder). The sliding performance life as the wax was maintained at 5.88 times. Also, in comparison with other commercially available waxes (paraffin 95%, polytetrafluoroethylene (PTFE) powder 5%), an increase in sliding performance of 1.42 times was measured at sliding speed, and sliding as wax The performance life has also been improved by 6.05 times.

  Furthermore, the ski wax of the present invention also has an unexpectedly excellent effect of exhibiting a function that can eliminate the snowburn phenomenon (smoothing surface damage phenomenon well known among competitive skiers) due to frictional heat on the sliding surface. It was.

  Polytetrafluoroethylene (PTFE) powder particles obtained by pulverization after synthesis having a softening point of 300 ° C. or higher, a main particle size of 12 to 14.5 microns, and a maximum particle size of 19 microns (impurities mixed from raw materials during synthesis are 0 .9% content) alone and well dried to obtain the ski wax of the present invention.

  Using this ski wax, after rubbing on the running surface (sole part) of the ski made of polyethylene resin, which is finished to a rough surface of 60 microns in depth, it is rubbed with a raised nylon fiber cloth. Rubbing work was done.

  Since the maximum size of polytetrafluoroethylene (PTFE) powder is 19 microns on the rough surface of the ski, it can be rubbed without any problem and an electrostatic field of about 60,000 volts is generated, so that the adsorption due to static electricity is prevented. Occurred and not normally dropped off, but temporarily held to the extent that it was free to move when it was slid.

  When the skiing test was carried out using the skis thus carefully maintained, it was found to be 1 in comparison with the case where commercially available ski wax (15% beef tallow, 15% paraffin, 70% polytetrafluoroethylene (PTFE) powder) was used. I was able to glide at a phenomenal speed of 50 times, and the effect lasted 6.67 times.

  Furthermore, the ski wax of the present invention has an unexpected excellent effect that it exhibits a function that can eliminate the snowburn phenomenon (smooth surface damage phenomenon that is well known among competitive skiers) due to frictional heat on the sliding surface. Needless to say, it was obtained in the same manner as in the Example.

  Since the present invention can provide smooth skiing performance to general skiers, it is a ski wax capable of providing overwhelming skidability and durable life especially in ski competitions that compete for time. Is extremely large.

Claims (1)

  Polytetrafluoroethylene containing no raw materials and additives other than impurities that are inevitably mixed in from the manufacturing process such as chemical synthesis, molding, and pulverization, and the main particle size in the particle size distribution is 20 microns or less (PTFE) Ski wax made of fine powder.