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題名 | Effects of Printing Density and Color Settings in the Software on Performance of Laser Engraving of Wood-based Materials=列印密度及色彩設定對雷射雕刻木質材料之影響 |
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作者 | 王怡仁; 蘇文清; | 書刊名 | 臺灣林業科學 |
卷期 | 21:3 民95.09 |
頁次 | 頁297-304 |
分類號 | 474.1 |
關鍵詞 | 雷射雕刻; 列印密度; 色彩; 色差值; 雕刻深度; Laser engraving; Printing density; Color; △E* value; Engraved depth; |
語文 | 英文(English) |
中文摘要 | 雷射雕刻技術應用在聚乙烯製品時,因會產生腐蝕氣體而不受歡迎,但其他材質製品之雷射雕刻則漸受歡迎,不同材料之雕刻深度及色差值除受雕刻機本身之功率及進給速度所影響外,亦受列印密度及色彩設定之影響。本試驗在探討不同列印密度及色彩設定對雷射雕刻木質材料之影響。試驗中將列印密度設定為300、600及1200 dpi,並配合紅色 (R255G0B0)、黃色 (R255G255B0)、藍色 (R0G0B255) (第一次色)、綠色 (R0G255B0)、橘色 (R255G204B0)、紫色 (R255G0B255) (第二次色)及灰色 (R178G178B178)、黑色 (R0G0B0) 等8種色彩,對杉木、硬槭及MDF進行雕刻,雕刻功率固定為25 W,進給速率則為40% (約3120 mm min-1),經雕刻後觀測材料表面雕刻深度及色差值,並以SEM觀察雕刻區之木材組織受損情形,試驗結果得知三種列印密度皆呈現低比重材料之雕刻深度較深,而比重高者則雕刻深度淺,且隨著列印密度增加,雕刻深度變深,色差值 (△E*) 則隨著列印密度增加而明顯加大,亦即可凸顯雕刻區與未雕刻區之對比效果。以8種色彩雕刻三種材料發現冷色系之黑色、藍色及紫色之雕刻深度較深,暖色系之黃色及橘色之雕刻深度最淺,而冷色系之雕刻色差值亦呈現較高之現象,此說明色彩設定確實會影響雷射雕刻效能。此外,雕刻區SEM觀測顯示300 dpi之雕刻表面呈現密集平行排列之V型溝槽,隨著列印密度增加,V型溝槽更加密集,當列印密度為1200 dpi時,則因燃燒導致雕刻區出現木材組織被嚴重熔損現象 |
英文摘要 | Laser-engraved products are becoming more popular than ever. Both the engraved depth and color difference for a specific material are influenced by the physical settings such as power and feed speed of the laser engraver, and the software settings such as printing density and color setting. In this study, we explored the effects of printing density and color settings in the software on laser-engraved wood-based materials. China fir, hard maple, and medium-density fiberboard (MDF) were engraved using a power of 25 W and a feed speed of 3120 mm min-1 (40% of the full feed speed) under 3 printing densities of 300, 600, and 1200 dots per inch (dpi), respectively. Furthermore, 8 color settings including red (R255G0B0), yellow (R255G255B0), blue (R0G0B255), green (R0G255B0), orange (R255G204B0), violet (R255G0B255), gray (R178G178B178), and black (R0G0B0) were tested at a printing density of 600 dpi. The engraved depth and color difference (△E*) were measured. The engraved zone was observed by scanning electron microscopy (SEM). Experimental results indicated that the engraved depth increased with an increase in the printing density. The engraved depth of low-density material was deeper than that of high-density material at the same printing density setting. Cold color settings (black, violet, and blue) resulted in deeper engraved depths compared to warm color settings such as yellow and orange. Color differences indicated by △E* values were affected by the settings of printing density and color in the software with similar trends. The SEM observations of the engraved surfaces showed a set of parallel V-shaped grooves. As the printing density increased, the valley-to-valley distances became smaller. Ablation was observed on the surface when the printing density was set to 1200 dpi. |
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