FIELD: process engineering.
SUBSTANCE: invention relates to production of thick dye-stuff of varying tonality. Besides, this invention relates to software product used for of dye preparation. Proposed device comprises piston pump with dispensing channel receiving thick dye-stuff in definite amount per piston unit stroke in piston displacement toward first end of the cylinder, said amount differing from that in piston displacement from cylinder second end. Additionally, said device comprises a valve connected to dispensing channel. Said valve has dispensing channel connected to valve first discharge channel to feed thick dye-stuff into can and bypass feed channel connected to valve second discharge channel to feed thick dye-stuff in bypass the can for it to be tinted.
EFFECT: accurate dispensing of minor amount of colorant and fast dispensing of major mount thereof.
11 cl, 1 dwg
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