Publication detail

Optical Behaviour of Copper Phtalocyanine Preparations for Inkjet Inks

Authors: Otáhalová Lenka | Kaplanová Marie | Gunde Marta Klanjšek | Puchta Miloš

Year: 2011

Type of publication: článek v odborném periodiku

Name of source: Acta Chimica Slovenica

Publisher name: Slovenian Chemical Society

Place: Ljubljana

Page from-to: 212-216

Titles:

Language	Name	Abstract	Keywords
cze	Optické vlastnosti preparace ftalocyaninu mědi určené pro inkjet inkousty	Práce se zabývá analýzou vlivu velikosti částic na chování preparace ftalocyaninu mědi určené pro aplikaci inkjetem.	Inkjet;ftalocyanin mědi;velikost částic;optická spektroskopie
eng	Optical Behaviour of Copper Phtalocyanine Preparations for Inkjet Inks	The present study investigates the preoparation of the copper phtalocyanine pigment for inkjet printing inks.The pigment particle size distribution was measured with laser diffraction at different times of wet milling. Simultaneously, the absorbance spectra in a visible-near infrared spectral region of the corresponding diluted pigment dispersions were measured.At the beginning of the milling proces, the partical size distribution is bimodal, showing the presence of aggregates and agglomerates. During a second hour of milling, the particle size distribution changes ti unimodal, due tu the breaking of agglomerates, and the corresponding absorbance spectra change accordingly. Further milling diminishes the size of pigment aggregates up to the steady state value of around 130 nm, where also the absorbance in the corresponding spectra does not increase. A detailed analysis of intensity and position of the absorbance peak at 340 nm in dependence on the milliong time and pigment concentration confirms .	Inkjet;phtalocyanine blue;particle size distribution;optical spectroscopy

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