Organic-Inorganic Pigments

In some application areas, inorganic pigments are also used to an appreciable extent, frequently in combination with organic pigments. A comparison of the respective application properties of inorganic versus organic pigments shows some fundamentally important differences between the two families. 

Poor tinctorial strength and lack of brilliance restricts the use of inorganic pigments in printing inks. There are areas of application, however, where it is hardly, 

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Consumer articles often use colorants (qv), reodorants, or finishing agents. Carbon black (qv) provides the best technological properties for industrial appHcations, so most mbber articles are black. Red iron oxide or other inorganic pigments are used to color mineral-filled articles. Organic... 

The composition of inorganic pigments is well known. However, stmctures of organic pigments are often not disclosed (see PIGMENTS, ORGANIC). 

In the United States the use of coal-tar dyes ia eye makeup is geaerally prohibited. The use of permanent and temporary hair colorants (Tables 16 and 17) and of organic dyes and their lakes is precluded. As a result, only iasoluble inorganic pigments can be used (Table 9). The sensitivity of the eye... 

The procedure of determination of metals in the thin layer without elimination of the non-volatile organic components for different paints containing inorganic pigments was developed. Several techniques of sampling from paint-and-lacquer materials for X-ray fluorescence analysis were proposed. For the study of nonhomogenity of metal distribution in the thin layer we used additionally the local method of X-ray fluorescence analysis. 

The term FD C color, often seen on ingredients labels, refers to food, drug, and cosmetic colors. These are organic compounds (as opposed to inorganic pigments, such as titanium dioxide) that are so intense in color that it takes only very tiny amounts to color something, and thus they can be used in concentrations so minute that they are safe for consumption. 

In any discussion of the dispersion phase, the physical state of the aggregates, whether they are inorganic pigments or organic medicaments, must be considered. The following physical states may occur ... 

This book is focused on the industrially important organic dyes and pigments and, to a certain extent, inorganic pigments and thus deals almost exclusively with colour generated by the mechanisms described by group (c). 

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