Overview
ABSTRACT
A liquid colorant is composed of a binder, in which a discontinuous phase is dispersed, the pigments and possibly other additives. Contrarily to solid colorants, liquid variations provide the following advantages: rapid results, easier and less cumbersome storage, they are non-perishable as they are always reusable. This article describes the coloring method based upon liquid pigment dispersion; implementation, dosage of colorants and choice of pigments according to a large number of criteria (coloring properties, aptitude to be transformed, conservation of mechanical properties, etc.). In conclusion method applications are presented.
Read this article from a comprehensive knowledge base, updated and supplemented with articles reviewed by scientific committees.
Read the articleAUTHOR
-
Daniel WYART : Chemical engineer CNAM (Conservatoire national des arts et métiers) - Former Sales and Marketing Director, Plastics Coloring Division – BASF Coatings SAS - with the kind collaboration of Jean-Jacques RIBLET (manager of 2R Couleur)
INTRODUCTION
The following describes a coloring method based on liquid pigment dispersions. By liquid pigment dispersions we mean a stable suspension of a pigment or colorant in a binder compatible with the plastic material. This pigment preparation is introduced at the base of the hopper of the injection molding machine or extruder during processing.
This dossier supplements the general dossier
or directly incorporated (generally by thermoplastic producers) into polymers with their other additives;
added (by processors) to base material granules prior to processing, in the form of masterbatches or dry blends.
Exclusive to subscribers. 97% yet to be discovered!
Already subscribed? Log in!
Liquid colorants made of pigment dispersions
Characteristics of liquid colorants
Article included in this offer
"Formulation"
(
107 articles
)
Updated and enriched with articles validated by our scientific committees
A set of exclusive tools to complement the resources
Exclusive to subscribers. 97% yet to be discovered!
Already subscribed? Log in!
