鈔券用安全紙張抗老化之研究
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2013
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Abstract
在資訊發達與複製科技進步的今天，安全文件的製作與流通變成一門專業的知識，更多的防偽科技與功能被賦予文件安全性的任務，尤以鈔券為甚。而作為鈔券用安全紙張，因為須承載防偽安全功能及作為鈔券流通時之載體，因此扮演著相當重要的角色。本研究希望藉由加速老化試驗，來探討鈔券用安全紙張之抗老化性能。
本研究以鈔券用安全紙張為研究對象，分別為傳統棉質鈔券用安全紙張C及兩種三明治鈔券用安全紙張D、H，並採用不同熱加速老化類型及有無紫外線老化之試驗，進行紙張性能(白度、耐折度)保留率之評估，了解並比較其抗老化之能力。
茲將本研究重要發現分述如下：
一、 耐折度對加速老化之敏感度高於白度。
二、 濕熱加速老化對鈔券用安全紙張之影響小於乾熱加速老化。
三、 整體而言，鈔券用安全紙張D之抗老化能力最佳，其次為C，最後為H。
四、 鈔券用安全紙張D之光學性能表現最佳。而鈔券用安全紙張H在無紫外線老化之乾熱加速老化試驗之性能表現最佳，但在紫外線老化下性能老化最嚴重。
五、 在紫外光老化下，安全紙張C及D發生「光漂白」效果。其原因乃因紙張填充料為二氧化鈦，二氧化鈦與紫外光發生光催化漂白所致。
In today, as the advancement of Information and replication technology. The production and circulation of the security documents become a professional knowledge. More anti-counterfeiting technology and function is given the tasks of documents security, especially banknotes. As the high security banknote paper, because have to carrying anti-counterfeiting security features and as a carrier in the circulation of banknotes, it play a a much important role. This study hope to investigate the anti-aging ability of the high security banknotes paper by accelerated aging test. In this study, high security banknote paper as the research subjects, traditional cotton banknotes of security paper C and two kind of three-layer-substrated banknotes security paper D& H. Using the thermal accelerated aging and the UV degradation test to evaluate the retention of paper performance (ISO brightness & folding endurance) ,then to understand and compare their anti-aging ability. The important findings of the study are as follows: 1. Folding endurance is more sensitivity than ISO brightness in the accelerated aging test. 2. The moist-heat accelerated aging is less effect than the dry-heat accelerated aging. 3. Overall, the high security banknotes paper Dhas the best anti-aging ability, followed by C, and the last H. 4. The best optical performance is the high security banknotes paper D. And the high security banknotes paper H has the best performance in the dry-heat accelerated aging without UV degradation, but under UV degradation the performance degradation is the most serious. 5. Under UV deterioration, the banknote security paper C and D have occur " photpcatalysis bleaching ", its causes that paper filler is titanium dioxide (TiO2). Titanium dioxide and ultraviolet light catalytic bleaching caused. Titanium dioxide and UV excitation occur the photocatalytic bleaching.
In today, as the advancement of Information and replication technology. The production and circulation of the security documents become a professional knowledge. More anti-counterfeiting technology and function is given the tasks of documents security, especially banknotes. As the high security banknote paper, because have to carrying anti-counterfeiting security features and as a carrier in the circulation of banknotes, it play a a much important role. This study hope to investigate the anti-aging ability of the high security banknotes paper by accelerated aging test. In this study, high security banknote paper as the research subjects, traditional cotton banknotes of security paper C and two kind of three-layer-substrated banknotes security paper D& H. Using the thermal accelerated aging and the UV degradation test to evaluate the retention of paper performance (ISO brightness & folding endurance) ,then to understand and compare their anti-aging ability. The important findings of the study are as follows: 1. Folding endurance is more sensitivity than ISO brightness in the accelerated aging test. 2. The moist-heat accelerated aging is less effect than the dry-heat accelerated aging. 3. Overall, the high security banknotes paper Dhas the best anti-aging ability, followed by C, and the last H. 4. The best optical performance is the high security banknotes paper D. And the high security banknotes paper H has the best performance in the dry-heat accelerated aging without UV degradation, but under UV degradation the performance degradation is the most serious. 5. Under UV deterioration, the banknote security paper C and D have occur " photpcatalysis bleaching ", its causes that paper filler is titanium dioxide (TiO2). Titanium dioxide and ultraviolet light catalytic bleaching caused. Titanium dioxide and UV excitation occur the photocatalytic bleaching.
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鈔券用安全紙張, 紙張老化, 加速老化試驗, High security banknote paper, Paper aging, Accelerated aging test