Device for the sectional application of liquor to a fabric web

Abstract

A device for the sectional application of liquor to a running fabric web includes an applicator roll that has liquor applied to it which, during the application of the liquor to the fabric web is located lying against the fabric web. A removal device is provided, with which the liquor is able to be removed section by section from the applicator roll in the longitudinal direction of the applicator roll and/or an application device is provided, with which the liquor is able to be applied section by section onto the applicator roll.

1 . A device for sectional application of liquor to a running fabric web, comprising:
 an applicator roll adapted to have liquor applied to it, which lies against the fabric web during the application of the liquor to the fabric web; and   at least one (a) a removal device adapted to remove the liquor section by section from the applicator roll in a longitudinal direction of the applicator roll and (b) an application device adapted to apply the liquor section by section onto the applicator roll.   
   
   
       2 . The device according to  claim 1 , wherein the removal device includes a row of doctor blades that extend in the longitudinal direction of the applicator roll. 
   
   
       3 . The device according to  claim 1 , wherein the removal device includes a row of doctor blades that extend in the longitudinal direction of the applicator roll, individual doctor blades, optionally and independently of one another, arranged at least one of (a) to be brought to lie against the applicator roll and (b) to be lifted off from it. 
   
   
       4 . The device according to  claim 1 , wherein the removal device includes a row of air jets that extend in the longitudinal direction of the applicator roll. 
   
   
       5 . The device according to  claim 1 , wherein the removal device includes a row of air jets that extend in the longitudinal direction of the applicator roll, the individual air jets, optionally and independently of one another, adapted to have a gaseous medium that is under pressure applied thereto. 
   
   
       6 . The device according to  claim 1 , wherein the removal device includes a row of application nozzles. 
   
   
       7 . The device according to  claim 1 , wherein the removal device includes a row of application nozzles, the application nozzles, optionally and independently of one another, adapted to have liquor applied to them. 
   
   
       8 . The device according to  claim 1 , wherein the application device includes a row of application rockers that extend in the longitudinal direction of the applicator roll. 
   
   
       9 . The device according to  claim 1 , wherein the application device includes a row of application rockers that extend in the longitudinal direction of the applicator roll, the application rockers, optionally and independently of one another, pivotable between a position in which liquor is supplied to the applicator roll via the application rocker and a position in which the liquor is not supplied to the applicator roll. 
   
   
       10 . The device according to  claim 1 , wherein the application device includes a row of release openings extending in the longitudinal direction of the applicator roll, from which the liquor is releaseable. 
   
   
       11 . The device according to  claim 1 , wherein the application device includes a row of release openings extending in the longitudinal direction of the applicator roll, from which the liquor is releaseable, the release openings displaceable, independently of one another, between two positions such that the liquor is supplied to the applicator roll in a first position and that in a second position the liquor is not supplied to the applicator roll. 
   
   
       12 . The device according to  claim 10 , wherein the release openings are formed by open ends of flexible hoses. 
   
   
       13 . The device according to  claim 1 , wherein the application device includes a row of screen rolls adapted to transport the liquor, that extend in the longitudinal direction of the applicator roll. 
   
   
       14 . The device according to  claim 1 , wherein the application device includes a row of screen rolls adapted to transport the liquor, that extend in the longitudinal direction of the applicator roll, the screen rolls, optionally and independently of one another, displaceable between a position in which they lie against the applicator roll, and a position in which they do not lie against the applicator roll. 
   
   
       15 . The device according to  claim 1 , wherein the application device includes a row of reservoirs, that extends in the longitudinal direction of the applicator roll, adapted to accommodate the liquor, the reservoirs displaceable between an operating position in which the applicator roll dips into the liquor using a part of its outer circumference, and an at-rest position in which the applicator roll does not dip into the liquor, the device further comprising a seal device, in the operating position, at least lateral edges of the reservoirs lie against a circumference of the applicator roll in a sealingly acting manner. 
   
   
       16 . The device according to  claim 15 , wherein the reservoirs are shell-shaped, in the operating position, inside contours of the reservoirs extend concentrically with the circumference of the applicator roll. 
   
   
       17 . The device according to  claim 15 , further comprising a collection reservoir adapted to catch liquor that exits from the reservoirs. 
   
   
       18 . The device according to  claim 17 , wherein the collection reservoir includes an outlet adapted to release liquor that has been caught. 
   
   
       19 . The device according to  claim 15 , wherein each reservoir is supported at an arm of a rocker system. 
   
   
       20 . The device according to  claim 19 , wherein the reservoirs are displaceable in the longitudinal direction of the applicator roll. 
   
   
       21 . A device for sectional application of liquor to a running fabric web, comprising:
 an applicator roll adapted to have liquor applied to it, which lies against the fabric web during the application of the liquor to the fabric web; and   at least one (a) removing means for removing the liquor section by section from the applicator roll in a longitudinal direction of the applicator roll and (b) applying means for applying the liquor section by section onto the applicator roll.