CHEMICAL SOLVENTS FOR USE IN THE MANUFACTURE OF INKS; CHEMICAL PREPARATIONS FOR USE IN THE MANUFACTURE OF INKS; CHEMICAL PREPARATIONS IN THE NATURE OF ANTI-ENCRUSTANTS AND DISENCRUSTANTS FOR USE IN THE PRINTING INDUSTRY; CHEMICAL PREPARATIONS FOR USE IN DISPERSING AND REMOVING WASTE AND CHEMICAL RESIDUES FROM PRINTING MACHINES AND FROM INK CONTAINERS FOR PRINTING MACHINES [ ; DETERGENTS FOR USE IN THE MANUFACTURE OF PRINTING INKS ]