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Method and apparatus for the application of textile treatment compositions to textile materials

United States Patent

*** EXPIRED ***
January 20, 1998
View the Complete Patent at the US Patent & Trademark Office
Idaho National Laboratory - Visit the Technology Transfer and Commercialization Office Website
A system for applying textile treatment compositions to textile materials. A conduit member is provided which includes a passageway having a first end, a second end, and a medial portion with a constricted (narrowed) region. The passageway may include at least one baffle having an opening therethrough. A yarn strand is then moved through the passageway. A textile treatment composition (a sizing agent or dye) dissolved in a carrier medium (a supercritical fluid or liquified gas) is thereafter introduced into the constricted region, preferably at an acute angle relative to the passageway. The carrier medium expands inside the passageway which causes delivery of the treatment composition to the yarn. The treated yarn then passes through the baffle (if used) which facilitates drying of the yarn. During this process, a carrier gas can be introduced into the passageway to ensure the production of a smooth, dry product.
Argyle; Mark D. (Idaho Falls, ID), Propp; William Alan (Idaho Falls, ID)
Lockheed Idaho Technologies Company (Idaho Falls, ID)
08/ 554,127
November 6, 1995
CONTRACTUAL ORIGIN OF THE INVENTION The United States has rights in this invention pursuant to contract number DE-AC07-94ID13223 between the U.S. Department of Energy and Lockheed Idaho Technologies Company.