Druckmethode für gegossene Gegenstände aus synthetischem Harz und Kopfhörergehäuse, das bei dieser Methode bedruckt wird
The printing of a letter, character or a figure (4) on an inner ear type headphone, which is a molded body of a thermoplastic synthetic resin, is performed by irradiating the surface of the synthetic resin molded body with a laser light for expanding any moisture or air contained in the molded body...
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| Zusammenfassung: | The printing of a letter, character or a figure (4) on an inner ear type headphone, which is a molded body of a thermoplastic synthetic resin, is performed by irradiating the surface of the synthetic resin molded body with a laser light for expanding any moisture or air contained in the molded body for foaming the surface. Printing is achieved in the form of foamed regions of the synthetic resin and hence is clear and superior in abrasion resistance and durability. |
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