Polyvinylchloride PVC - Introduction

PVC resins are employed in a wide variety of applications including pipes, films, sheets, profiles, coated fabrics, flooring, wire and cable. Ciba is a global leader in the discovery, manufacture, and marketing of innovative speciality chemicals to improve process economics and the quality of PVC end products.

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Coloration

Coloration quality in PVC depends not only on the compounds and their interactions with components but also on the processing technologies and conditions. PVC heat stabilizers are the components that exert the most significant influence on PVC coloration. They should be selected with great caution in order to achieve good coloration results by assuring that the compounds are stable.   

Pigments generally demonstrate much worse weather resistance but better migration (no liquid phase) in rigid PVC than in flexible or semi-rigid PVC. For this reason it is imperative to include the correct stabilization package to maximize outdoor performance.  

Recommended colorants are predominantly in our Ciba® CROMOPHTAL® of high performance organic pigments or the Ciba® IRGALITE® range of classical organic pigments. Pigment preparations from the Ciba® MICRANYL NQ-F or Ciba® MICROLEN MC ranges are especially recommended for PVC applications.

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