Colortech Color Concentrates

Colortech Color Concentrates

Colortech - our name says it all. Our strength is color and we are committed to providing you with the best color concentrate technology in the marketplace today. From subtle off-whites and earth tones to vibrant reds, brilliant blues and vivid yellows, Colortech offers a broad spectrum of cost-effective color concentrates to meet all of your processing needs. In addition to our standard general purpose colorants, selected products have been formulated to satisfy the most demanding high performance applications. including critical blown film, cast film, high speed injection molding, extrusion coating and fibers.

Can’t find the exact color and performance characteristics you’re looking for? Colortech also offers an extensive color matching and formulation service, allowing us to quickly and easily blend custom colors and additive packages to suit your specific application needs. Give us a call and let us show you how Colortech brings color to life.

 

Carrier Resin Options

Although LLDPE is the carrier of choice for most routine polyolefin extrusion operations, it may not provide the best performance in all processing situations. As an alternative, Colortech can supply custom formulated carrier resins that provide optimum rheological and physical performance in specific applications.

Optional carriers include HDPE, LDPE and LDPE/LLDPE resin blends for film and blow molding. High melt index LLDPE is often preferred for high speed injection molding. In addition, EVA copolymer carriers can be specified for use in polystyrene, HIPS, ABS and PVC applications while EMA carriers are best suited for polypropylene, polyamide, polycarbonate, ionomer, acrylic and acetal resin systems. Your Colortech Sales Representative will be happy to help you select a concentrate/carrier resin combination that's specifically suited to your individual processing needs.

Lightfastness, Thermal Stability and Opacity

Lightfastness is a term used to describe the fade resistance of colorant formulations. It is an inherent characteristic of the pigment system used and is not significantly affected by the presence of UV light stabilizers which may be incorporated in the formulation to protect the polymer substrate. When discussing lightfastness values, remember they are estimates based on the standard Blue Scale (1-8) rating system where 8 represents the highest fade resistance. Since concentrate lightfastness levels can be affected by letdown and UV exposure conditions, these values should be used strictly as a guideline for product selection.

High lightfastness values are important in many durable goods applications where outdoor life expectancies are often measured in years. Many high durability products such as safety fencing, fiber optic cable conduit and industrial containers can benefit from the excellent lightfastness and brilliant color strength of heavy metal-based colorants. Lightfastness is generally not a concern in disposable consumer packaging where organic heavy metal-free pigment systems are the concentrates of choice.

Some of Colortech's standard colorant formulations are not suitable for extended high temperature use, therefore any recommended processing temperatures are intended as a guideline only. Since residence times, letdowns and process shear rates can differ significantly from application to application, actual thermal stability results may vary.

In many applications, opacity or hiding power is a critical factor in concentrate selection. In general, heavy metal-free (HMF) organic pigments do not provide the same hiding power, color strength and dispersion quality as inorganic heavy metal-based (HM) colorants. Organic and inorganic HMF versions of all heavy metal-based products shown can be supplied but in many cases significant differences in color, opacity and lightfastness will be noted.

Regulatory Status

Colortech concentrates designated as HMF are considered to be heavy metal-free under CONEG model toxics legislation (lead, mercury, cadmium and hexavalent chromium totals less than 100 parts per million) at all usage levels. Formulations listed as FDA comply with United States Food and Drug Administration guidelines for use in food packaging applications. Heavy metal- based colorants are designated as HM and are primarily recommended for use in durable goods applications.


Colortech is a North American based manufacturer of color and additive concentrates for the plastics industry. Our products are used in a wide range of products, from everyday household consumer items such as food packaging, toys, diapers, and grocery bags to industrial materials used in telecommunications, such as conduit, wire and cable coatings, fiber-based non- woven products and twine. Colortech concentrates & compounds are used in agriculture applications, such as mulch film, greenhouse & nursery films and pipe as well as in environmental systems such as geomembrane sheet.

While we carry a range of standard white, black, color & additive concentrates for typical applications, our expertise in custom color matching and specialized additive formulation for any plastics challenge awaits your inquiry.

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