1. Field of the Invention
The invention relates to a golf club, more particularly to a golf club having photochromic function.
2. Description of the Related Art
When purchasing a golf club, consumers may consider aesthetic and textural aspects thereof in addition to normal functions. Therefore, it is desirable in the art to develop a golf club which includes a golf club shaft or head having an improved appearance and texture.
Therefore, the object of the present invention is to provide a golf club including at least one of a photochromic golf club shaft and a photochromic golf club head.
In one aspect of this invention, a photochromic golf club shaft includes a shaft body, and a photochromic portion provided on the shaft body and including a photochromic blend.
In another aspect of this invention, a photochromic golf club head includes a head body having a photochromic portion that includes a photochromic blend.
Other features and advantages of the present invention will become apparent in the following detailed description of the preferred embodiments with reference to the accompanying drawings, of which:
Before the present invention is described in greater detail, it should be noted that like elements are denoted by the same reference numerals throughout the disclosure.
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Preferably, the coating material is ink or clear lacquer, and the photochromic material is composed of photochromic powders having a particle size of about 0.01 mm. The photochromic material changes from transparent to a color when it is exposed to visible or ultraviolet light, and reverses to transparency when it is not exposed to the light.
When the coating material is clear lacquer, a weight ratio of the photochromic material to the coating material preferably ranges from 1:1900 to 1:2100, and the photochromic portions 12 are formed by coating the photochromic blend on the shaft body 11. The photochromic portions 12 can be a trademark pattern or any other patterns. When the coating material is ink, a weight ratio of the photochromic material to the coating material preferably ranges from 1:4 to 1:1000, and the photochromic portions 12 are formed by printing (e.g., transfer printing or screen printing) the photochromic blend on the shaft body 11 and by laser engraving the photochromic blend printed on the shaft body 11.
The photochromic powders can be selected according to the desired specific photochromic color of the photochromic portions 12. Furthermore, different photochromic powders can be used in the photochromic portions 12, if desired, so as to produce multiple photochromic effects.
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While the present invention has been described in connection with what are considered the most practical and preferred embodiments, it is understood that this invention is not limited to the disclosed embodiments but is intended to cover various arrangements included within the spirit and scope of the broadest interpretation so as to encompass all such modifications and equivalent arrangements.