The ONLY Teaching Tool for Supercritical Fluids Technology

Applied Separations is meeting the growing, world-wide commitment to a cleaner, greener environment. Environmentally friendly Supercritical Fluid (SCF) technology works with today's innovative, easy-to-use systems from Applied Separations. 

Your students will be leading tomorrow's green process using no petroleum solvents and no toxic residue. 

Click here to find out how you can win a Spe-ed SFE-Prime system for your college classroom and lab.

Waterless Systems for Textile Dyeing

Bench-top System with Color Matching

Applied Separations and eCO₂Dye have developed a waterless textile dyeing process and equipment for dyeing. The process uses carbon dioxide as the solvent for dyeing as opposed to water as the medium in conventional dyeing.

In addition to the supercritical fluid systems for waterless textile dyeing, the Applied Separations / eCO₂Dye team has also developed additional technology to support your dyeing operations:

• 60 - 90 minute dyeing cycle depending on color
• Selection of disperse dyes that work well in our process. Create a palette of colors with these dyes.
• Color database for your use
• Use color match capability
• Dyed polyester meets AATCC tests

Visit the textile dyeing section of the Applied Separations site, and the eCO₂Dye site for more information.

Dye Textiles Without Water? How is that possible?

Water, water, everywhere, but not enough to drink, as the saying goes... or to use for the myriad of other things. The world is running out of water faster than people would like to admit, and industry is a large part of the problem. 

But imagine if one could eliminate water from an industrial process like, say, dyeing textiles, and still maintain the color standards that the fashion industry demands! Today, that can be done. It's possible now to use supercritical CO₂ to dye textiles without water. 

Click here to find out more!

Pre-Process Textiles for Dyeing with Supercritical Fluids

scCO₂ for Scouring : Cleaning of yarns and fabrics done prior to dyeing or printing

Production of yarns and converting these into fabrics by weaving or knitting processes requires use of various oils, waxes, lubricants and other additives to facilitate in the fabrication steps.  The processing aids are removed from the textile to obtain high quality dyeing or printing on the textile. Processing aids are used for all textile materials – natural and man-made, though they may differ chemically depending on the material.

To learn more about using supercritical fluids to process textiles, visit the eCO2Dye site.

What is a Supercritical Fluid?

A supercritical fluid (SCF) is any substance above its critical temperature and pressure; the fluid has the properties of both gas and liquid while not exhibiting a distinct liquid or gaseous phase. Thus, an SCF is,

• Dense like a liquid to dissolve materials

• Has low viscosity, high diffusivity, no surface tension like a gas

Carbon dioxide is the most commonly used supercritical fluid and becomes supercritical at 31^oC and 74 BAR. There are many applications for scCO₂, including decaffeination of coffee, extraction of natural products, and waterless textile dyeing.

Carbon dioxide is environmentally friendly, non-toxic and in our case most of the CO₂ is internally recycled with very little vented to the atmosphere. scCO₂ based operations represent a very “green” technology.

Visit our site for more information.

Meet the Fashion industry’s Color Matching Demands with CO2

eCO₂Dye, in conjunction with Applied Separations, has developed a color database which may be used in the Datacolor ColorMatch Software used with their line of Supercritical CO₂ systems for waterless textile dyeing.

Now you can use our color match capability on yarn, thread, fabric, and garments while using CO₂ to dye your fiber without water.

The eCO₂Dye system obtains excellent color matching with as many as 4 dyes, allowing users to meet the strict demands of the fashion industry.

Visit www.eco2dye.com for more information.

Waterless Textile Dyeing with CO2

It's 2015 and the technology works!

eCO₂Dye, in conjunction with Applied Separations, Dingo Ltd, and Halide Group Inc, has developed a waterless textile dyeing process and equipment for dyeing. The process uses carbon dioxide as the solvent for dyeing as opposed to water as the medium in conventional dyeing.
Our Process for dyeing polyester offers the following advantages versus conventional dyeing in water

• CO₂ replaces water as the dye solvent
• Saves energy
• Uses fewer and less chemicals
• Generates practically no waste streams
• Carbon dioxide is recycled and not vented
• Reduces the number of process steps
• Simplifies dyeing chemistry
• Reduces plant footprint
• Flexibility in site location

For more information, visit eCO2Dye.com