Method of and apparatus for permeating textile materials with liquids
AssigneeKarl Menzel Maschinenfabrik GmbH & Co. KG.
InventorWaldemar Schlicht
Life of this patent
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Abstract
A web of textile material which is to be permeated with a liquid is caused to move upwardly through the nip of two squeezing rolls which serve to expel air and/or moisture and are immediately adjacent a liquid bath. The freshly squeezed increments of the web act not unlike sponges and thus accept substantial quantities of liquid, and the surplus of liquid is expelled from the web by two rolls which are installed above the bath and define a nip of variable width. If necessary, the web can be contacted by a suitable wetting agent on its way toward the nip of the squeezing rolls.
Claims20
A method of permeating a textile material with a liquid, comprising the steps of moving a web of textile material in a predetermined direction along a predetermined path inclining a first portion wherein the web moves from a lower level to a higher level and a second portion immediately preceding said first portion;
- squeezing the web in said second portion of said path;
- establishing and maintaining a liquid bath at said first portion of said path so that the web moves through and entrains liquid immediately following said squeezing step and while moving from said lower level to said higher level;
- expelling a portion of entrained liquid in a third portion of said path downstream of said first portion;
- and returning expelled liquid to said bath along a fourth portion of said path extending from the region of said bath towards said third portion of said path, the returning step including intercepting expelled liquid and guiding the intercepted liquid to said bath counter to said predetermined direction.
Apparatus for permeating a textile material with a liquid, comprising means for moving a web of textile material in a predetermined direction along a predetermined path inclining a first portion wherein the web is moved from a lower level to a higher level and a second portion immediately preceding said first portion;
- means for squeezing the web in the second portion of said path;
- a liquid bath-containing vessel surrounding said first portion of said path so that the web is contacted by liquid in said vessel while moving from said lower level to said higher level, immediately following squeezing in said second portion of said path and entrains some liquid from the bath;
- means for expelling a portion of entrained liqiud from the web in a third portion of said path downstream of said first portion;
- and means for returning expelled liquid to the bath, said returning means including a device between said expelling means and said bath for intercepting expelled liquid and guiding the intercepted liquid to the bath, and said device having a discharge end in the region of the bath and defining a fourth portion of said path in which expelled liquid travels counter to said predetermined direction.
Dependencies are inferred from the claim text.