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首页> 外文会议>European Additives amp; Colors Conference; 20030219-20; Antwerp(BE) >THE ADVANTAGE OF MULTI-FLUX ALGORITHM FOR COLOUR MATCHING IN THE PLASTIC INDUSTRY
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THE ADVANTAGE OF MULTI-FLUX ALGORITHM FOR COLOUR MATCHING IN THE PLASTIC INDUSTRY

机译：塑料工业中颜色匹配的多通量算法的优势

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Computerised Colour Matching, a technique to derive a formula from a colour, is been well introduced some time now. The basic idea to get to this point is not so complex. At first the colour needs to be converted to spectral data. The pigments or pastes to be used need to be characterized in a database finally a formula or formulae can be calculated to get to the colour. However in this matching process there are several critical factors to be studied to make sure that these systems work properly for virtually all plastic blends, pigments, pastes or colorants. A primary need is to obtain good spectral data from the specimen to be measured. This can be achieved by using a spectrophotometer built to measure in the visible light spectrum or area. There are some technical criteria to be kept in mind for these colour measuring instruments. The so called chain of dements for these instruments are: light source, geometry, light separating device, detectors. The Geometry needs to be CUE compliant at all times. The illumination of this geometry needs to be uniform. The sphere size/ aperture ratio as well as the gloss trap size are very important for d/8 geometry instruments. The reflection characteristics of the used coating must be closely watched. The light source needs to be monitored on its energy level and stability. The location of mis light source inside the geometry is important Bad positioning of the light source can cause healing problems and so instrument drift. The light separating device or grating needs to be monitored on its signal to noise ratio, its wavelength accuracy, resolution, and class. Finally the quality of the sensor s determent by the active surface of the sensor, the sensitivity range number of elements and the class of detector. In order to characterize the user's pigments pastes or colorants different algorithms exist. The most algorithms look for a relation between the spectral data from the measured colour and is Scattering (S) and Absorption (K) values or K/S. Also a relation between the K and the concentration and S and the concentration of the pigment, paste or colorant needs to be determent. These relations need to be found not only for each individual pigment paste or colorant but also for any mix of those in a resin.
机译：一段时间以来，计算机色彩匹配是一种从颜色派生公式的技术，已经得到了很好的介绍。达到这一点的基本思想并不那么复杂。首先，需要将颜色转换为光谱数据。最后，需要在数据库中对要使用的颜料或糊剂进行表征，最后可以计算出一种或多种配方以获得颜色。但是，在此匹配过程中，需要研究几个关键因素，以确保这些系统对于几乎所有的塑料共混物，颜料，浆糊或色料都能正常工作。主要需求是从要测量的样本中获得良好的光谱数据。这可以通过使用用于测量可见光谱或区域的分光光度计来实现。这些颜色测量仪器需要牢记一些技术标准。这些仪器的所谓的痴呆链是：光源，几何形状，分光装置，检测器。几何图形必须始终符合CUE。这种几何形状的照度需要均匀。球形尺寸/孔径比以及光泽陷阱尺寸对于d / 8几何仪器非常重要。必须密切注意所用涂层的反射特性。需要对光源的能量水平和稳定性进行监控。错误的光源在几何形状内的位置很重要光源的错误定位会导致修复问题，从而导致仪器漂移。需要监视分光设备或光栅的信噪比，波长精度，分辨率和等级。最后，传感器的质量受传感器有效表面，灵敏度范围元素数量和检测器类别的影响。为了表征用户的颜料糊或着色剂，存在不同的算法。最多的算法都是根据测得的颜色寻找光谱数据之间的关系，即散射（S）和吸收（K）值或K / S。还需要确定K与浓度和S与颜料，糊剂或着色剂的浓度之间的关系。这些关系不仅需要针对每种单独的颜料糊或色料找到，而且还需要针对树脂中这些颜料或色料的任何混合物找到。

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