| 摘要 |
Production of a lustrous pigment preparation comprises pasting a lustrous pigment with a binder and optionally a solvent and/or additives, in which all the components are compatible with the application system of the printing ink. The paste is applied in a compact particle form and it is liberated in this form from the solvent. The paste is initially liberated from the solvent and applied in a compact particle form. Preferably the binder is a cellulose compound selected from cellulose nitrate, alkyl cellulose, hydroxycellulose, hydroxyalkylcellulose and cellulose acetobutyrate. The lustrous pigment is a standard pigment based on mica, preferably muscorite mica, with a TiO2 and/or Fe2O3 coating and optionally further metal oxide layers of B, Al, Cr, Si, Sn, Zn, Zr or Ce. The paste is applied in a coarsely ground form, preferably by tabletting, briquetting, pelleting, granulating, spray granulating or extruding. The binder is used in an amount of 0.5-45 (preferably 2-15) wt.%. The paste is liberated from the solvent before or after compacting by drying under reduced pressure and/or at elevated temperature. The luminescent pigment preparation produced contains 80-99.5 wt.% pigment and 0.5-20 wt.% metal-effect pigment based on Al, Cu and/or their alloys.
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