FIELD: printing dyes.
SUBSTANCE: invention relates to concentrate of printing dyes and a method for its preparing. Invention describes dye concentrate for offset printing in form non-sticky granules covered by envelope and/or non-sticky granules without envelope with the pigment content in its 45-65 wt.-%. Envelope-cover consists of powder-like solid materials, wax or liquid materials, for example, oil. Also, invention describes a method for preparing indicated concentrate that involves grinding dye concentrate for offset printing and its covering by envelope wherein covering by envelope is carried out by direct applying powder-like solid material on the printing dye concentrate and wherein powder-like solid materials are combined firstly with liquid carrier followed by its evaporation, or solid envelope is prepared by applying melted material useful for coating. Invention provides decreasing viscosity and stickiness of the printing dye concentrate and allows simple transporting and simple mixing with additional components.
EFFECT: improved and valuable properties of concentrate.
9 cl, 12 ex
