CHICAGO (July 17, 5:20 p.m. EDT) — Molders and extruders can save money on their color costs when they use highly loaded concentrates, according to Teknor Color Co.
The Pawtucket, R.I., firm´s Super Concentrate series provides letdown ratios as low as 1:100, said Alan Bruder, vice president and general manager, in an interview at NPE 2000 in Chicago. The concentrates are supplied as small spheres and are best suited to volumetric feeding systems, such as those supplied by Maguire Products Inc. of Aston, Pa., Bruder said at the show.
"It´s common that companies lose a lot of color through poor dispersion," Bruder said. The Super Concentrates, with pigment loadings 200 percent higher than standard concentrates, also save warehousing space and costs.
Teknor Color cited growing use of its concentrates in thin-wall injection molded appliance parts, blow molded containers and coextruded sheet for thermoforming. Bruder said most customers don´t want to be disclosed, but one plastic lumber producer agreed to be cited as an example.
Everlast Plastic Lumber Inc. of Hamburg, Pa., makes plastic lumber from recycled high density polyethylene and small amounts of other recycled plastics. Because recycled scrap can be multicolored, Everlast chose Super Concentrates to control its gray, green, brown and tan colors and to cut costs. It said it went with the Teknor products because raw, powdered pigments were difficult to meter and disperse.