Innovations in aluminium pigment tochnology can produce some of the most attractive finishes for everyday objects. PC Tan traces the development of this exciting phenomenon in raw materials. As a general rule, the conventional cornflake aluminium pigments with the smallest average particle size have the dullest effect. But demand has been concerned with specific customer needs, with a trend toward fine and improved aesthetics. This silver dollar series with round, pancake or lenticular description are developed to satisfy this requirement. This hybrid aluminium pigment is able to withstand fragmentation tendencies in circulafing paint application systems, especially for those systems that may be less than ideal for handling more traditional grades. Today, unique effects can be obtained through the attachment of organic pigments to aluminium flakes. Resin-treated pigments offer enhanced resistance to acid and alkali staining in a variety of harsh environments. They also offer exzellent exfoliation and electrical resistance properties when formulated into coatings for electronic cabinetry. To allow the incorporation of aluminium pigment in aqueous coatings, the surface of the metal flake has to be treated to provide long-term stability with respect to hydrogen gas evolution. In recent years, the opficaliy engineered pigment industry has been moving towards matrix mastering technologies. The diffracted grating product is created by mastering an image or pattern, embossing surface structures onto thin film, metallising (thermal evaporation of aluminium) and finishing, which also involves cutting and slitting the processed film. By arranging different grating angles and groove spacing, it enables the dispersion of white light into its basic seven prismatic colours. Completely unlike conventional coverage pigments, this versatile medium can be added to all existing pigments for a dramatic diamond-like effect that is quite economical.


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    Title :

    Ordinary world. Metallic Pigments


    Contributors:
    Tan, P.C. (author)

    Published in:

    Publication date :

    2001


    Size :

    2 Seiten, 2 Bilder



    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English





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