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首页> 外文会议>International Conference on Digital Printing Technologies: Final Program and Proceedings; 20050918-23; Baltimore,MD(US) >Humidity Effects on Light Fastness Testing
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Humidity Effects on Light Fastness Testing

机译：湿度对耐光性测试的影响

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In accelerated light fastness testing the display life environment is simulated by choosing defined constant humidity levels or by cycling between a dry/light and a humid/dark level. The humidity level is a factor that may cause dye diffusion effects on one hand and different degradation speed of the colorants on the other hand. The right choice of the humidity level is important for display life testing and display life predictions. In a group of typical inkjet media/ink combinations some exhibited a strong influence on the humidity cycling conditions whereas others showed little effect. As different colorants have a different sensitivity to humidity their relative ranking change when the test parameters change. This changes the colour balance of faded prints and affects the display life predictions drastically. The first fading colour, as well as the colour shift in image degradation are shown to be a function of the sample humidity during the light exposure. On the basis of light fastness measurements in humidity cycled system over several years the statistical variation for display life of a typical Inkjet print has been determined which gives an indication about the experimental errors of a cycled system. A proposal for a dual humidity level test is made.
机译：在加速的耐光性测试中，显示器寿命环境是通过选择定义的恒定湿度水平或在干/亮与湿/暗水平之间循环来模拟的。湿度水平是一方面可能导致染料扩散效应而另一方面可能导致着色剂降解速度不同的因素。正确选择湿度水平对于显示器寿命测试和显示器寿命预测很重要。在一组典型的喷墨介质/墨水组合中，有些对湿度循环条件表现出很强的影响，而另一些则几乎没有影响。由于不同的着色剂对湿度的敏感性不同，因此当测试参数发生变化时，它们的相对等级也会发生变化。这将改变褪色打印的色彩平衡，并极大地影响显示寿命的预测。第一褪色以及图像退化中的色移显示为曝光期间样品湿度的函数。根据几年来在湿度循环系统中的耐光性测量结果，已确定了典型喷墨打印件的显示寿命的统计变化，从而表明了循环系统的实验误差。提出了双重湿度水平测试的建议。

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