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3. Pigment selection criteria
3.1 General
Which pigments should be selected to meet the required technical specifications, while keeping coloring costs as low as possible?
For the person responsible for coloring, it is essential to know the process used to transform the thermoplastic material and the requirements for the end use of the finished product.
The diversity of characteristics required for the final object means that the choice of pigments or colorants to be used requires an in-depth analysis of the specifications on a case-by-case basis.
The cost of colouring is then a compromise relative to the following pigment selection criteria:
coloring properties ;
...
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Pigment selection criteria
Applications
Standards and norms
- Matières plastiques. Évaluation qualitative de l'exsudation des colorants. (remplace : NF T 51-028 : 1965). Indice de classement : T51-028. - NF EN ISO 183 - 09-99
- Plastiques. Méthodes d'exposition à des sources lumineuses de laboratoire. Partie 2 : sources à arc au xénon. - NF EN ISO 4892-2 - 10-99
- Évaluation de la solidité de couleur par exposition à la lumière. - NF T 51-058 - 01-69
- Plastiques....
Directory
Manufacturers-Suppliers
Liquid colorants
2R Couleur http://www.2rcouleur.com[email protected] – France
BASF Color Solutions France http://www.basf-coatings.fr [email protected]...
Economic data
The 2008 price comparison is as follows:
dry pigments base 1
liquid dyes 1.2 to 1.3
masterbatches 1.3 to 1.5
The market share of liquid colorants for injection-molded polymers is currently estimated at 15% by volume of total colorants used in injection and injection-blow...
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