Water-Free Textile Dyeing

In the USA, the textile dyeing industry has invested more than one billion dollars in the past decade on environmental technologies designed to ensure that by-products of textile manufacturing do not pollute the environment. 

This investment is paralleled in other parts of the world, notably Taiwan and Korea. Initially, this effort focused on reducing the large quantities of water needed in current processes, for even the most economical use of water requires 100L/kg material. 

Supercritical carbon dioxide is an alternative dyeing technology that eliminates the use of water while achieving results comparable to current dyeing processes. Supercritical CO₂ is harmless ecologically, available, non-toxic and non-explosive.

For more information about this environmentally friendly method of dyeing, view the Applied Separations Application Note on Textile Dyeing.

What Does Supercritical Fluid Look Like?

It's not a gas... it's not a liquid... so what does supercritical fluid look like, anyway? 

Applied Separations vessels are available with 5-port lids that allow for the addition of a fiber optic probe to view the inside of the vessel during your process. 

View the video and see!

Double Your High Pressure Processing Capability with the Spe-ed SFE-4

Spe-ed SFE-4: 4-Vessel Simultaneous Oven-based Extraction System

The Applied Separations Spe-ed SFE-4 is a staple of the research lab. The Spe-ed SFE-4 was designed to meet the rigorous needs of day-to-day use in the research lab. It is simple to operate, fast and affordable, with unique features not found in other supercritical fluid systems. The Spe-ed SFE-4 has parallel processing capabilities of up to 4 high pressure vessels.

The system features:
•    temperatures to 240°C
•    pressure up to 10,000 psi (680 BAR)
•    pump flow rates up to 400mL/min
•    independent control of flow rates to each vessel
•    fully-adjustable, non-clogging, variable restrictors
•    parallel processing capabilities of up to 4 vessels
      from 0.5mL to 1.0L
•    collection into SPE cartridges or standard glassware
•    in-line trapping capabilities
•    modifier addition capability
•    multiple flow path capability
•    extract directly from liquid samples

Featured Supercritical Fluid Instrument: Spe-ed SFE-2

Spe-ed SFE-2
Laboratory Scale
Supercritical Fluid
Instrument

The Spe-ed^TM SFE-2 is the original SFE in Applied Separations' series of instruments for supercritical fluid extraction. Built in conjunction with the USDA, this system was designed to meet the rigorous needs of day-to-day use in the research lab. It is simple to operate, fast and affordable, with unique features not found in other SCF systems.

The system features:

• temperatures to 240°C
• pressure up to 10,000 psi (680 BAR)
• pump flow rates up to 400mL/min
• independent control of flow rates to each vessel
• fully-adjustable, non-clogging, variable restrictors
• parallel processing capabilities of 1 or 2 vessels from 0.5mL to 1.0L
• collection into SPE cartridges or standard glassware
• in-line trapping capabilities
• modifier addition capability
• multiple flow path capability 
• extract directly from liquid samples

For more informaion, visit the Applied Separations website.