Process and apparatus for the continuous application of treating liquor on an absorptive, compressible material web
AssigneeTriatex International AG
InventorsMartin Schwemmer, Albert Goetz
Life of this patent
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Abstract
A process and an apparatus for the continuous and controlled application of liquor on an absorptive, compressible material web such as textile webs, warp yarn layers or fleeces. One or more liquors are applied in amounts being comprised between the values of water retention capacity and saturation. The liquor containing web is passed through an equalizing device wherein the web is drawn through an equalizing nip or slit whose thickness is adjustable and smaller than the thickness of the incoming, liquor containing material web. The equalizing may be effected in the nip of two rollers. The liquor concentration in the web before and after the equalizing is statistically the same.
Claims12
A process for the continuous and controlled application of a liquor on an absorptive and compressible advancing material web wherein at least one liquor is applied to the web in amounts comprised between the water retention value and the liquid saturation value of said web, comprising continuously passing the liquor containing material web through an equalizing device wherein the said material web is temporarily compressed in a slit or nip to a predeterminated, adjustable thickness which is smaller than the thickness of the material web before entering the equalizing device, substantially no liquor being added to or removed from said material web in the equalizing zone, so that the amount of liquor in the material web is essentially the same upstream and downstream said equalizing device.
Dependencies are inferred from the claim text.