IT1041893B - Pigment compsns in bead form - made by mixing pigment in water contg. protective colloid and insoluble organic carrier
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Pigment compsns in bead form - made by mixing pigment in water contg. protective colloid and insoluble organic carrier
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Publication number
IT1041893B
IT1041893BIT2645975AIT2645975AIT1041893BIT 1041893 BIT1041893 BIT 1041893BIT 2645975 AIT2645975 AIT 2645975AIT 2645975 AIT2645975 AIT 2645975AIT 1041893 BIT1041893 BIT 1041893B
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Priority claimed from GB3670074Aexternal-prioritypatent/GB1477150A/en
Application filed by Ciba Geigy AgfiledCriticalCiba Geigy Ag
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Publication of IT1041893BpublicationCriticalpatent/IT1041893B/en
Prepn. of pigment compsns. in bead form, comprises mixing (A) 1 pt. insoluble organic carrier melting at 100 degrees C, with an aq. dispersion contg. (B) 0.25-2.3 pts. pigment or water-insoluble dye, in presence of (C) a protective colloid, at a temp. above the m. pt. of (A), until (B) has combined with (A), and the aq. phase is virtually free of (B). The beads obtd. are then isolated. The pigments are used in the colouring of inks, paints and plastics. Good yields of well-formed; free-flowing beads are obtd., which are non-dusting and easily incorporated to give uniformly coloured products.
IT2645975A1974-08-211975-08-20Pigment compsns in bead form - made by mixing pigment in water contg. protective colloid and insoluble organic carrier
IT1041893B
(en)
PROCESS FOR PREPARING WATER-INSOLUBLE MONO-AZO PIGMENTS AND PRINTING INKS, VACUES OR DISPERSION PAINT CONTAINING THESE PIGMENTS, AND OBJECTS COLORED OR DYED WITH THESE PIGMENTS.