Armour idea chemicals at work:
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Dispersion—> blacker blacks How can you get blacker blacks? Simple—add a bluish-purple dye toner. Not so simple—if you're trying to do this with carbon paper "ink." This dye toner is not readily dispersible in the molten mixture of carbon black, ink oil and vegetable waxes at 175-190° F. However, it disperses easily if you mix one part of the dye toner with
two parts of Armour's Neo-Fat® 94-04 fatty acid and add this improved toner to the carbon paper ink. The "business end" of the carbon paper shown above will then produce "blacker" black impressions. Neo-Fat 94-04 is also used in the manufacture of liquid metal polishes, textile soaps, esters and solubilizers.
If you have a tough job of dispersion with some other product, find out what one of the Neo-Fat fatty acids can do for you. Scarcely a business cannot find ideas . . . and profits . . . in the long list of Armour chemicalsfor-industry. For more information on Armour Idea Chemicals (fatty acids and derivatives), write today to Dept. CEN-5.
Armour Industrial Chemical Company One of the Armour Chemical Industries
22
C&EN
110 North Wacker Drive, Chicago 6, Illinois
