頁籤選單縮合
題 名 | Heat Fastness of Thermal Paper=感熱紙之耐熱性 |
---|---|
作 者 | 郭蘭生; 杜明宏; 邱永添; | 書刊名 | 林業研究季刊 |
卷 期 | 21:3 1999.09[民88.09] |
頁 次 | 頁25-32 |
分類號 | 476.57 |
關鍵詞 | 感熱紙; 耐熱性; 頂部塗佈; 絕緣塗佈; 耐久性; Thermal paper; Heat fastness; Top coating; Barrier coating; Permanence; |
語 文 | 英文(English) |
中文摘要 | 感熱紙係於表面塗佈特殊感熱塗料之特種塗佈紙,遇熱部份可呈色。感熱紙塗料之配方及製造均相當複雜。為符合需要,其塗料配方中可含14種以上之化學成份。 本試驗以50~70℃溫度之老化條件,評估比較6種市售感熱紙之耐熱性,結果顯示:環境溫度愈高,印刷匣及非印刷區之色變情形愈嚴重。市售感熱紙之耐熱性均不佳。此外,本試驗以微量(5~10g/m□)絕緣材料如﹕MgCO□,CaSiO□及低融點明膠(gelatin)塗佈於感熱紙表面,以改善其耐熱性。試驗結果顯示,列印感熱紙之耐熱性雖有改善,但效果並不顯著。 綜合試驗之結果,可知於感熱紙之表面塗怖微量絕熱材料,可以改善其印刷圖文之熱安定性,便於長期儲存。惟絕熱材料之選擇需十分慎重,除具保護作用外應不影響感熱紙對熱之敏感性為要。 |
英文摘要 | A thermal paper is a special paper coated with a heat sensitive coating. It undergoes a color change (to black) when heated. The thermal paper coating is complex both in its composition and method of manufacture. There can be a combination of up to 14 different chemical components to achieve the desired effect. In aging tests (50-70℃), printed images of 6 commercial thermal papers proved less resistant to heat and then faded gradually. In other words, the higher the surrounding temperature was the more color reversion of the printed and non-printed areas occurred. Based on the results observed in this study, we surface treated the coated side of 60 g/m□ thermal papers with small amounts (5-10g/m□) of heat insulating materials such as MgCO□ and CaSiO□ and a low melting point gelatin. It was found that heat fastness of the printed thermal papers could be improved slightly; however, no marked effects were observed. In conclusion, the problem of image stability of thermal papers might be solved by the application of a top (or barrier) coating. We deduced that this should be a transparent, film-forming layer which when coated onto the surface of the thermal coating, acts as a non-penetrable protective layer, but one which will not impair the heat sensitive characteristics of the main coating. |
本系統中英文摘要資訊取自各篇刊載內容。