ISO 8781-1:1990 颜料和稀释剂.色散特性评定方法.第1部分：有色颜料着色度变化的评定

标准编号：ISO 8781-1:1990

中文名称：颜料和稀释剂.色散特性评定方法.第1部分：有色颜料着色度变化的评定

英文名称：Pigments and extenders — Methods of assessment of dispersion characteristics — Part 1: Assessment from the change in tinting strength of coloured pigments

发布日期：1990-11

标准范围

本发明涉及通过ISO 8780所述方法之一分散的有色颜料。该方法通常用于比较类似颜料，例如测试颜料与商定的参考颜料。其原理是在规定的条件下，在商定的粘合剂系统中分阶段分散颜料。在每个分散阶段之后，取一部分磨粉基料，分别与白色颜料混合，形成还原糊。按照ISO 787-24的规定，测定每种还原糊料的着色强度。计算两个分散阶段之间着色强度的增加百分比，以评估颜料的易分散性。

Relates to coloured pigments which have been dispersed by one of the methods described in ISO 8780. The method is of general use for comparing similar pigments, for example a test pigment against an agreed reference pigment. The principle consists in dispersing the pigment in stages under specified conditions in an agreed binder system. After each dispersion stage, a portion of the mill base is taken and mixed separately with a white pigment to form a reduced paste. The tinting strength of each reduced paste is determined as described in ISO 787-24. The percentage increase in tinting strength between two dispersion stages is calculated in order to assess the ease of dispersibility of the pigment.

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