Apparatus for applying dye to a textile

Abstract

An apparatus for applying a liquid dye to a textile web moving continuously in a predetermined direction has a tubular applicator housing defining a substantially closed chamber formed with an outlet slot extending a full length of the chamber transverse to the direction and a removable cover strip formed with an elongated array of throughgoing holes fitted to the slot. A receptacle holding the liquid dye is connected between the receptacle and the chamber for pressurizing the chamber with the dye. The closed chamber is centered on an axis and the housing forms a second chamber that is annular and coaxially surrounds the first-mentioned chamber. The housing also forms a second outlet slot extending a full length of the housing parallel to and offset from the first-mentioned slot. The supply is also connected to this second chamber.

1 . An apparatus for applying a liquid dye to a textile web moving continuously in a predetermined direction, the apparatus comprising: 
 a tubular applicator housing defining a substantially closed chamber formed with an outlet slot extending a full length of the chamber transverse to the direction;    a removable cover strip formed with an elongated array of throughgoing holes fitted to the slot;    a receptacle holding the liquid dye; and    supply means connected between the receptacle and the chamber for pressurizing the chamber with the dye.    
   
   
       2 . The applicator apparatus defined in  claim 1  wherein the closed chamber is centered on an axis and the housing forms a second chamber that is annular and coaxially surrounds the first-mentioned chamber, the housing also forming a second outlet slot extending a full length of the housing parallel to and offset from the first-mentioned slot, the supply means also being connected to the second chamber to pressurize same with a treatment liquid.  
   
   
       3 . The applicator apparatus defined in  claim 2  wherein the first chamber is cylindrical and the second chamber.  
   
   
       4 . The applicator apparatus defined in  claim 2  wherein both of the slots are provided with removable such cover strips.  
   
   
       5 . The applicator apparatus defined in  claim 4  wherein both of the cover strips extend a full length of the respective chamber.  
   
   
       6 . The applicator apparatus defined in  claim 1  wherein the holes of the cover strip are uniformly spaced from one another.  
   
   
       7 . The applicator apparatus defined in  claim 1  wherein the holes of the cover strip are nonuniformly spaced.  
   
   
       8 . The applicator apparatus defined in  claim 1 , further comprising 
 an applicator blade having a flat flow surface extending from the slot to the passing web and oriented such that dye issuing from the slot flows down the surface to the web.    
   
   
       9 . The applicator apparatus defined in  claim 1  wherein the supply means includes a conduit extending between the chamber and receptacle.  
   
   
       10 . The applicator apparatus defined in  claim 1  wherein the supply means includes a pump for pressurizing the chamber.  
   
   
       11 . The applicator apparatus defined in  claim 1  wherein the chamber has a length of about 6 m.  
   
   
       12 . The applicator apparatus defined in  claim 1  wherein the holes are circular and have a diameter between 1.1 and 20 mm.  
   
   
       13 . The applicator apparatus defined in  claim 1  wherein the supply means pumps 2000 l/min of the dye to the chamber.  
   
   
       14 . The applicator apparatus defined in  claim 1  wherein the holes are of adjustable size.