TWI822523B - A method of making a handle of a racket with hydrophobic effect - Google Patents

Abstract

A method of making a handle of a racket with hydrophobic effect includes preparing a wooden handle for a racket, subjecting the handle to an ultrafine grinding process (grinding step) for grinding rough capillary holes so that a surface of the handle becomes a smooth and even surface which does not prick hands, removing wood debris and dust from the handle after the grinding step is complete (cleaning step), and finally subjecting the surface to a coating process so that the surface is coated with a hydrophobic membrane adapted to cover the capillary holes. Accordingly, when the handle is held by a user, the hydrophobic membrane prevents water and sweat from adhering to and infiltrating into the handle, thereby preventing fibers of the handle from getting soft and even getting broken while using the handle and also prolonging the life of the handle efficiently.

Description

Racquet handle hydrophobic manufacturing method

The present invention relates to the design of a racket handle, and in particular to a hydrophobic manufacturing method for a racket handle.

Check, in view of the continuous world-class badminton, tennis and even baseball competitions, many people are gradually keen to include badminton, tennis, table tennis and other sports in their daily lives. Therefore, choosing a dedicated racket can not only meet the needs of use In addition to the player's grip and feel, it can also achieve skill in returning and controlling the ball during sports. Therefore, in the overall design of the racket, the materials used from the hitting frame to the grip must be impact-resistant and The elasticity characteristics, especially the selection of the grip material, are mainly made of wood fiber. Its elasticity can achieve better swing power and hitting feel, and at the same time, it can also reduce the excessive buckle in front of the net. To reduce the force of feedback; therefore, in the production of grips, the traditional method is to use better wooden materials to finely shape the grip shape, and then after joining with the hitting frame, finally on the surface of the grip. Wrap it with an anti-slip elastic band, which can provide anti-slip effect during use and can also absorb sweat generated during exercise.

However, after actual use, it was found that since the handle has not been properly waterproofed, the sweat generated by the user's hands due to exercise, or external rainwater, etc., will continue to pass through the anti-slip elasticity. It indirectly penetrates into the wood fiber of the handle through the capillary pores of the handle. After long-term use, the wood fiber inside the handle will rot due to the inability to effectively discharge water, and may even cause damage due to excessive moisture content. As a result, the fibers of the handle become loose, causing the handle to break when the user exerts force, resulting in a short service life, which really needs to be improved.

Therefore, the object of the present invention is to provide a hydrophobic manufacturing method for a racket handle, which uses protective paint to cover the handle to form a hydrophobic film layer, and utilizes the protective effect of the hydrophobic film layer to effectively Prevents external moisture and sweat from penetrating, greatly extending the service life of the handle.

Therefore, the hydrophobic manufacturing method for the grip of the racket of the present invention includes a material preparation step, a grinding step, a cleaning step and a protective processing step; wherein, in the grinding step, the wooden material handle prepared in the material preparation step is The ultra-fine grinding and coarsening of capillary pores removes unevenness, roughness, etc. on the surface to form a smooth and flat shape, and then through this cleaning step, the wood chips and dust remaining on the surface of the handle after grinding are removed, so that After cleaning, there is no residue attached to the handle. At the same time, a protective coating is applied to the handle through the protective processing step, and then the handle is dried until a protective coating is formed on the surface of the handle. The provision of a hydrophobic film layer, and the protective mechanism formed by the covering of the hydrophobic film layer, can form a hydrophobic effect with a high water contact angle on the surface of the handle to prevent moisture and acid-base sweat. The protective effect produced by penetrating into the fibers of the handle can prevent the risk of breakage during use, effectively extending the service life of the handle.

The aforementioned and other technical contents, features and effects of the present invention will be clearly understood in the following detailed description of the preferred embodiments with reference to the drawings.

Referring to Figure 1, a preferred embodiment of the hydrophobic manufacturing method 3 for a racket handle of the present invention includes a material preparation step 31, a grinding step 32, a cleaning step 33 and a protective processing step 34; wherein, the material preparation step 31 There is a racket handle 4 made of wooden material, and the periphery of the handle 4 has been processed in advance to form a shape with polygonal surfaces. At the same time, the material of the handle 4 is preferably Paulownia. Of course, the grip of the racket is The handle 4 can be a bat used for badminton, tennis or even baseball. The following only takes the handle 4 of a badminton racket as an example. In addition, in the grinding step 32, the surface of the handle 4 can be ground, that is, as follows Using a grinding machine or a grinding equipment (not shown in the figure), the unevenness, roughness, etc. formed on the surface of the handle 4 during the material preparation process are removed by ultra-fine grinding to roughen the capillary pores. It is removed so that the surface of the handle 4 forms a smooth and flat shape that does not irritate the hand.

Continuing from the above, the cleaning step 33 is to clean the handle 4 after grinding, so that the wood chips and dust generated during the grinding process are carried out through a cleaning instrument, so that the entire handle 4 is cleaned and has no residue. In order to proceed to the next step, a protective coating 5 is provided in the protective processing step 34 to cover the handle 4 that has been cleaned and has no debris on the surface. It is formed on the surface of the handle 4 and then dried, so that a hydrophobic film layer is formed on the surface of the handle 4. In this embodiment, the protective coating 5 is a silazane polymer. The pre-processing of the work can make the surface of the handle 4 appear free of debris, so that it can have better smoothness during the coating process. Furthermore, the characteristics of the silazane polymer not only have better In addition to excellent moisture and oxygen resistance, it also has thermal stability, acid resistance, alkali detergent resistance, UV radiation resistance and corrosion resistance. Therefore, the coating ratio of the protective coating 5 can be adjusted Appropriate deployment should be made according to different use needs. If it is used by adults, high-intensity use or professional competitions, the coverage ratio must be enhanced. If it is used by children, practice use, entertainment use, etc., the coverage ratio must be enhanced. The proportion of coating the protective coating 5 can be carried out in the normal mode, so that the hydrophobic film layer can form a reaction effect with better isolation and no adsorption. At the same time, the coating method of the protective coating 5 can be spraying, deposition At least one of the processing methods of immersion, soaking, etc. can effectively form the hydrophobic film layer on the entire handle 4.

Referring to Figures 1 and 2, during the manufacturing process, wooden materials are first prepared and shaped according to the size of the badminton racket handle 4 to be formed, and then the periphery of the handle 4 is processed to form a polygonal shape. body (ie, the material preparation step 31), and then the unevenness, roughness, etc. produced on the handle 4 after processing in the previous step are processed by ultra-fine grinding and coarsening of the capillary pores, so that the handle The fiber pores on the surface of 4 are finely formed to smooth out uneven and rough areas, thereby forming a smooth and flat surface of the handle 4 that does not irritate the hand (this is the grinding step 32). When the grinding is completed, wood chips, dust, etc. generated during the grinding process will be attached to the handle 4. In order not to affect the subsequent processing steps, it is necessary to remove the wood chips, dust, etc. attached to the handle 4 at this time. Therefore, a cleaning tool can be used in the cleaning step 33, that is, if a tool with a strong suction effect is used to absorb the wood chips, dust, etc. on the handle 4, it can not only completely remove the wood chips, dust, etc. Sawdust, dust, etc. are removed and do not remain on the handle 4. At the same time, the absorbed sawdust, dust, etc. can be concentrated to avoid the hazard of dust in the working environment, and can prevent dust from adhering to the handle again. On the handle 4, the protective processing step 34 can be directly entered, that is, the protective coating 5 provided will be appropriately coated according to the different planned uses of the handle 4, so that the protective coating 5 The paint 5 is uniformly distributed on the handle 4, and is processed by drying to form a hydrophobic film layer with silazane polymer on the surface of the handle 4. In this way, the hydrophobic film is formed. The grip 4 is protected during the manufacturing process, and then an anti-slip tape (not shown in the figure) is wrapped around the grip 4 and joined to the batting frame before it can be shipped from the factory for use.

Therefore, when the user holds the handle 4 of the badminton racket for use, the sweat and moisture generated by the hand during the holding process will first pass through the anti-slip belt and then reach the handle 4. At this time, the handle 4 will Because the handle 4 is covered with the protective coating 5, a protective mechanism formed by a hydrophobic film layer can be formed on the handle 4, and a high water contact angle can be formed on the surface of the handle 4. The hydrophobic effect prevents sweat and water vapor from penetrating into the fibers of the handle 4 due to the isolation relationship of the hydrophobic effect, effectively preventing the fibers of the handle 4 from improper penetration of sweat and water vapor, and at the same time, it will not After long-term use, the fibers in the grip 4 will become soft and rotten, and the grip 4 may even break due to the force of the swing being fed back to the grip 4. The situation is presented, thereby effectively and significantly increasing the service life of the handle 4.

The following is the handle 4 covered with protective coating of the present invention and the conventional handle not covered with protective coating, at the same temperature of 23°C±2°C, relative humidity of 50%±5% and test speed of 5.0mm/ min and other conditions, conduct water immersion and flexural strength tests, and the reaction results are as follows:

Table 1: The handle covered with protective coating of the present invention Conventional handle not covered with protective coating Weight after immersion in water for 24 hours 24.2 33.2 Flexural strength (N) 2548.7 2300.5

Therefore, it can be seen from the above table 1 that the handle 4 covered with protective coating of the present invention can effectively reduce the adsorption force of water, and its weight after immersion is significantly less than that of the conventional handle. At the same time, the flexural strength It is also better than the conventional grip. From this, it can be clearly understood that under the same environment, using the grip 4 covered with the protective coating can help reduce the adhesion of moisture and sweat under long-term use. Effect.

To sum up the foregoing, the hydrophobic process for the handle of the racket of the present invention is carried out through the steps of material preparation, grinding, cleaning and protective processing. Not only can the handle prepared in the material preparation step be effectively affected by the protective coating. Isolation and coating are achieved to ensure that during the use of the handle, the hydrophobic effect with a high water contact angle formed by the protective coating coating can effectively isolate and prevent the infiltration and adhesion of moisture, sweat, etc., to avoid The fiber of the handle is affected by moisture and sweat adhesion and penetration, which greatly effectively increases the service life.

However, the above descriptions are only for illustrating the preferred embodiments of the present invention, and should not be used to limit the scope of the present invention, that is, simple equivalent changes and modifications may be made based on the patent scope of the present invention and the contents of the description of the invention. , should still fall within the scope covered by the patent of this invention.

(this invention)

3: Hydrophobic manufacturing method for racket handle

31: Preparation steps

32: Grinding steps

33: Cleaning steps

34: Protective processing steps

4: Grip

5: Protective coating

Figure 1 is a schematic flow diagram of a preferred embodiment of the present invention.

Figure 2 is a schematic diagram of a handle with protective coating according to the preferred embodiment of the present invention.

(this invention)

3: Hydrophobic manufacturing method for racket handle

31: Preparation steps

32: Grinding steps

33: Cleaning steps

34: Protective processing steps

4: Grip

5: Protective coating

Claims (3)

A hydrophobic manufacturing method for a racket handle, which includes: a material preparation step, which prepares a racket handle made of wooden material; and a grinding step, which grinds the surface of the handle using ultra-fine grinding to coarsen pores. , to remove unevenness, roughness, etc. on the surface of the handle, so that the surface of the handle forms a smooth and flat state that does not irritate the hand; the cleaning step is based on the smooth and flat state obtained by the grinding step. The surface is cleaned in this way to remove wood chips, dust and other impurities remaining on the surface, so that a clean form without residues is formed on the surface; and a protective processing step, which is provided with a protective coating, The protective coating is coated on the surface obtained in the cleaning step in a clean state without residue adhesion, and the surface covered with the protective coating is dried to form a mask on the surface. A hydrophobic film layer is provided on the capillary pores on the surface, and the hydrophobic film layer can prevent external water vapor from penetrating into the capillary pores on the surface to ensure the strength of the handle. The hydrophobic manufacturing method for the grip of a racket according to claim 1, wherein the protective coating may be a silazane polymer. According to the hydrophobic manufacturing method for the grip of a racket according to claim 1, the protective coating coating method can be at least one of spraying, deposition, soaking, etc.

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