Printer Friendly

New Pigments Shift Hues in Clear Plastics.

Highly reflective, inorganic interference pigments that provide high chromaticity and shifting hues in clear plastics are newly available from Flex Products, Inc., Santa Rosa, Calif. ChromaFlair pigments are flat, smooth flakes of aluminum, magnesium fluoride, and chromium about one-fiftieth the diameter of a human hair. The reflective aluminum core provides the light interference responsible for color shift. The core also lends hiding power. They are wetted with propylene glycol n-propyl ether to reduce dusting. The flakes create colors that change when viewed at different angles. Eight standard colors include gold/silver, red/gold, magenta/gold, purple/orange, blue/red, cyan/purple, green/purple, and silver/green.

These pigments are best suited to clear, glossy plastics, such as PET, ABS, SAN, and polycarbonate. If used with HDPE and other translucent resins, a more muted color effect will result. These pigments have been tested in injection and blow molding, film extrusion, and calendering. They reportedly are more robust than mica or aluminum flakes in masterbatch production.
COPYRIGHT 2001 Gardner Publications, Inc.
No portion of this article can be reproduced without the express written permission from the copyright holder.
Copyright 2001, Gale Group. All rights reserved. Gale Group is a Thomson Corporation Company.

Article Details
Printer friendly Cite/link Email Feedback
Comment:New Pigments Shift Hues in Clear Plastics.
Publication:Plastics Technology
Article Type:Brief Article
Geographic Code:1USA
Date:Feb 1, 2001
Previous Article:Knives with Nine Lives.
Next Article:New Concentrates Solve TPE Foaming Problems.

Related Articles
CIM helps compounder keep its colors true.
How to get the most out of pearlescent pigments.
Yellow Pigments Excel in Cost & performance.
More new looks join special-effects line. (Materials).
Dow launches decorative special-effects resins. (Keeping up with Materials).
Colorants & additives make a splash at NPE 2003.
Pigments II: growing demand for specialty effect pigments.
Pigments II: growing demand for specialty effect pigments.
Higher-strength pigments for packaging.
Optically variable pigments from dielectric layers and their applications.

Terms of use | Privacy policy | Copyright © 2018 Farlex, Inc. | Feedback | For webmasters