变色颜料

变色颜料严格地讲，应属于无机颜料，但许多色颜料都是和传统的有机颜料复合使用，使传统的颜料、涂料工业以及防伪油墨受到了极大的挑战，充满了商机。本文综述了变色颜料的最新发展，重点介绍了变色颜料的结构、光可变机理、随视角变化的CIELAB色彩空间坐标图及加工工艺。     

还原染料类颜料及其颜料化技术

本文对还原染料类颜料特点、重要品种及合成工艺进行了讨论，较系统地论述了该类型颜料的颜料化方法，重点了各种不同的颜料表面改性处理的新进展。     

颜料、颜料制剂及填料

201309049二氧化碳颜料及其制备方法：W02012-121801[国际专利申请]/美国：Tronox LLC（Goparaju，Venkata Rama Rao等）．-2012．09．13．-48页．-US2011/44297（2011．03．09）：IPCC09CI/36本发明涉及了一种包覆处理的无机氧化物颜料，该颜料含有无机氧化物基质本颜料、包覆于基质颜料上的无机多孔性涂层、初级二氧化钛、包覆于基质颜料上的无机致密涂层。其中，无机多孔性涂层和无机致密涂层都含有一种硅或铝的材料，另外，本发明还涉及了包覆处理的无机氧化物颜料的制备方法，以及一种组合物（含有聚合物基料和包覆处理的无机氧化物颜料）的制备方法。     

陶瓷颜料

本文就陶瓷颜料的发展，陶瓷颜料的制备方法，以及陶瓷颜料的国内外生产情况作了一个较为简单的综述。     

颜料、颜料制剂及填料

形成彩虹色涂膜用的衍射光栅颜料及其制备，用于采用了由有机聚硅氧烧和石蜡型烃增塑剂构成的混合物的室温固化有机硅橡胶的颜料，形成像素的酞菁着色剂组合物及其应用，无机黄色颜料的制备，金红石-钒酸铋复合颜料及其生产方法及应用，改善着色颜料与合成树脂类或硅酸酮类涂料配伍性的着色粒子的应用，[编者按]     

颜料、颜料制剂及填料

通过研磨加工云母的方法，合成防腐涂料用无毒片状颜料的新方法，颜料表面处理用的组合物，特殊效应的干涉颜料混合物，印刷油墨用的具有良好分散性的颜料组合物制备法。     

颜料、颜料制剂及填料

铝颜料，其制备工艺及树脂组合物：WO2004—96 921，彩色水泥型建筑材料用快速分解颜料浓缩物：WO2004—96 922，改进流变性的溶剂型涂料组合物用颜料分散体：US2004-122 160，可再分散粒状颜料的制法：WO2004—53 000，以透明基板为基础的高光泽银白色干涉颜料：WO2004—55 119，含铋氧卤化物的颜料固体溶液：WO2004—99078……     

彩色片状颜料

彩色片状颜料众所周知，颜料是由极微细的原级粒子组成，这些粒子具有极高的表面能，易聚结成较大颜料粒子。为了提高颜料的着色性，将粉碎的颜料粒子表面进行化学处理，以使各颜料粒子保持在稳定分散状态。但是，经处理的颜料长期放置在漆料中，颜料粒子又会再次聚结。欧...     

隐颜料技术对颜料的改性

研究背景：有机颜料在应用时以细微颗粒状态分散在应用介质中，由于粒子颗粒细小，比表面积大，所以表面能较高。受分子间的相互作用力及重力影响，颜料粒子会絮凝成更大的粒子，影响颜料的应用效果。尤其是新开发的高档杂环颜料如1，4-二酮吡咯并吡咯(1，4-diketo-pyrrolo[3，4一c]pyrrole)颜料(即DPP颜料)、苯并咪唑酮(benzimidazolone)颜料等分子极性较高，     

颜料、颜料制剂及填料

包膜细粒子及其制备：W020066397[国际专利申请，日]，含无机材料和基料的自粘接颜料粒子在干态或水性悬浮体或分散体中的制备工艺：FR2873127[法国专利]，彩色粘土矿物粉及其制备：JP2006—45260[日本专利公开]，圆柱形或菱形几何形状的颜料及其制备方法：W02006—18094[国际专利申请，德]，改进了贮存稳定性的玻璃片状珠光颜料：W02006—18196[国际专利申请，德]，用再沉淀法大批量生产颜料微晶体及其包胶物，含二氧化硅和氧化铈保护层的包膜珠光颜料：W02006—21386[国际专利申请，德][编者按]     

粉末涂料用有机颜料概述

粉末涂料用有机颜料属于高性能有机颜料,是作为无机颜料的一种补充,补齐了无机颜料在颜色鲜艳度、色相齐全方面的缺陷。有机颜料的许多应用性能不仅决定于化学结构,粒径大小与分布、颗粒表面极性、晶体类型与结晶度、表面改性对有机颜料也有很大的影响。本文从有机颜料物理形态、晶型、化学结构特性等方面阐述有机颜料的性能,同时介绍了粉末涂料对有机颜料的性能要求和一些粉末涂料中常用的有机颜料,以及这些颜料的特性。总结了有机颜料在粉末涂料中使用容易出现的问题,了解其产生的原因和机理,帮助从业者在众多的颜料色号中选择合适的高性能有机颜料。     

Recent Developments in Organic Pigments

Azo, vat and phthalocyanine pigments are discussed briefly. The demand for high-grade pigments has led to the development of new classes of organic pigments, viz. quinacridone, dioxazine, perylene—perinone, fluorubine, pyrrocoline, and isoindolinone pigments. The preparation and properties of these pigments are discussed, particular attention being paid to the range of colours and the fastness properties obtained and to the prospects of commercial development.     

Ceramic Pigments with the Mullite Structure Based on Topaz and Kaolinite

The possibility of obtaining ceramic pigments with the mullite structure based on natural minerals (kaolinite and topaz) is considered. It is established that these minerals are promising for the synthesis of ceramic pigments. The obtained pigments are resistant to high temperatures and have various tints.     

Performance of phosphate–alumina pigments in waterborne paints for protection of cold-rolled steel

Core–shell theory presents a new easy method to obtain high performance, economic, and eco-friendly anticorrosive mixed pigments. The core–shell pigments in this work are prepared by depositing a surface layer of an expensive efficient anticorrosive pigment (phosphates) on a bulk of less expensive extender pigment (alumina). The combination of these two compounds led to the production of new pigments with improved properties different from each of its individual components; and consequently these improved properties led to changing the efficiency of protection properties of paint films containing these new pigments. The new pigments were characterized using XRD, SEM, TEM, and EDAX analysis to elucidate their structure and prove the presence of phosphate ions on the surface of alumina. These pigments were also evaluated according to ASTM measurements. Then they were incorporated in three groups of emulsion paint formulations based on styrene acrylic emulsion copolymer, and comprising different concentrations of Zn, Mg, and 1Zn·1Mg phosphates/alumina core–shell pigments; in addition to a control formulation free of these pigments, to evaluate their efficiencies in anticorrosive paints for protection of cold-rolled steel. Chemical, physical, and mechanical measurements were carried out, besides corrosion resistance tests and weight loss of steel panels under paint films which were determined in 5% NaCl solution for 28 days. The results proved that the prepared formulations containing the prepared pigments could protect steel efficiently from corrosion compared to the control specimen. Groups II and III containing higher weight percentages of prepared pigments showed the best performance in corrosion protection, and the best performance among these two groups was paint films containing magnesium phosphate/alumina pigments.     

Synthesis and characterization of local clay–titanium dioxide core–shell extender pigments

A simple chemical technique has been used to prepare core–shell extender pigments based on Nigerian indigenous clays as core and titanium dioxide as shell. The prepared core–shell extender pigments were characterized using X-ray fluorescence and scanning electron microscopy. The physico-chemical properties of these extender pigments were also evaluated according to ASTM measurements. The study showed that the prepared core–shell pigments were nontoxic and environmentally friendly. They are of low cost and can be incorporated in semi-gloss paints, paper, rubber, and plastic composites without much effect on the volume. The characteristics of these pigments showed that they combine the properties of both their precursors, and have the potential to overcome their disadvantages, e.g., low hiding power of clays and photochemical activity of titanium dioxide.     

Physico-chemical properties of ceramic pigments for high-temperature application

Heat resistant coatings are required primarily for stacks, exhaust pipes, reactors, space crafts and similar equipments that are permanently or occasionally exposed to elevated temperatures. High-temperature coatings are generally based on silicone resin with ceramic and metallic pigments. In this study, iron oxide, cobalt oxide (thermo chromic compound) and aluminum oxide are used for the preparation of four new types of coloured pigments. The thermal resistant characteristics of these ceramic pigments were studied by differential thermal analysis, thermo gravimetric analysis and differential scanning calorimetric analysis. These ceramic pigments are found to be thermally stable up to 400 °C.     

超声波提取植物色素及酸碱指示剂的应用

以阳荷、葡萄皮和洋葱为原料,采用超声波法提取出几种植物色素,并将植物色素作保质期观察和酸碱指示剂的应用,结果表明：植物色素在70%的酸性乙醇中保质期最长,而在强酸和强碱性溶液中保质期最短。另外,红色素在酸性条件下显红色,在碱性条件下显蓝色,而且阳荷红色素的显色更加明显。因此,通过超声波法提取出的植物色素,阳荷红色素最适宜作为酸碱指示剂的应用。     

The application of x-ray powder diffraction for the analysis of synthetic organic pigments. Part 2: artists’ paints

This paper presents x-ray powder diffraction data for over 200 synthetic organic pigments. These pigments, most manufactured in the last 130 years, are frequently found in modern works of art. Their identification is of interest in the field of art conservation for the purposes of dating works of art as well as making conservators and curators aware of issues with lightfastness and solubility. Most classes of these pigments, including β-naphthol, Naphthol AS, mono- and di-arylide yellows, quinacridones, copper phthalocyanines, benzimidazolones, and perylenes give good diffraction data. Some pigments, including certain triarylcarbonium and some other metal containing pigments, especially aluminum containing pigments, were found not to diffract. X-ray powder diffraction is of great use in distinguishing polymorphs of pigments such as quinacridones and copper phthalocyanines.     

The application of x-ray powder diffraction for the analysis of synthetic organic pigments. Part 1: dry pigments

This paper presents x-ray powder diffraction data for over 200 synthetic organic pigments. These pigments, most manufactured in the last 130 years, are frequently found in modern works of art. Their identification is of interest in the field of art conservation for the purposes of dating works of art as well as making conservators and curators aware of issues with lightfastness and solubility. Most classes of these pigments, including β-naphthol, Naphthol AS, mono- and di-arylide yellows, quinacridones, copper phthalocyanines, benzimidazolones, and perylenes give good diffraction data. Some pigments, including certain triarylcarbonium and some other metal containing pigments, especially aluminum containing pigments, were found not to diffract. X-ray powder diffraction is of great use in distinguishing polymorphs of pigments such as quinacridones and copper phthalocyanines.     

New effect pigments from grey to black

This paper shows different possibilities of manufacturing silver-grey mica pigments. One example, the mica-ilmenite pigments Iriodin® 9602 WR II and Iriodin® 9612 WR II, are discussed in detail concerning the production process and their chemical and physical characteristics. The colorimetric data of the new mica pigments are discussed and the first weathering data presented. The results show that these pigments give the color chemist a new styling tool for the grey and silver-grey color range. Through the addition of transparent organic pigments brillant and deep metallic-like colors can be achieved. A second type of mica pigment, black magnetite on mica, is presented in its basic chemical structure and its potential use for the color chemist.