Means for continuous dyeing of pile warp textiles especially of carpets

Abstract

Apparatus for dyeing a continuously moving textile web which comprises means to apply a wetting agent to said web, means to apply pressure to said web to improve the penetration of said wetting agent, at least one means to apply dye to said web, including a container to hold dye, a rotating roller positioned partially in said container and adapted to pick up dye on its surface, a scraper having one end adjacent said rotating roller and the other end adjacent and above said web, said scraper being positioned to remove dye from said rotating roller to cause dye to flow upon the web, and means, such as a pair of rollers, to apply pressure to said web to improve dye penetration.

What we claim is: 
     
       1. Apparatus for dyeing a continuously moving .Iadd.pile warp .Iaddend.textile web which comprises: (A) means to apply a wetting agent to said web;   (B) means to apply .Iadd.uniform .Iaddend.pressure to said web to improve the penetration of said wetting agent;   (C) at least one means to apply .Iadd.a uniform continuous .Iaddend.dye .Iadd.film .Iaddend.to .Iadd.the pile warp of .Iaddend.said web, including a container to hold dye, a rotating roller adapted to carry dye on its surface as received from said container, a scraper having one end adjacent said rotating roller and the other end adjacent and above said web, and positioned to remove dye from said rotating roller to cause said dye to flow upon said .Iadd.pile warp of said .Iaddend.web; and   (D) means to apply pressure to said web to improve dye penetration, wherein each of said means is positioned in the sequence (A), (B), (C) and (D) along the direction of movement of said web.   
     
     
       2. The apparatus of claim 1 wherein said means (A) to apply a wetting agent includes a container to hold said wetting agent, a rotating roller adapted to carry said wetting agent on its surface as received from said container, a scraper having one end adjacent said rotating roller and the other end adjacent and above said web, and positioned to remove wetting agent from said rotating roller to cause said wetting agent to flow on said web. 
     
     
       3. The apparatus of claim 1 wherein said container to hold dye comprises a trough and said rotating roller is positioned above said trough with at least the lower portion of said rotating roller submerged in the dye in said trough. 
     
     
       4. The apparatus of claim 2 wherein said container to hold wetting agent includes a trough and said rotating roller adapted to carry wetting agent on its surface is positioned above said trough with at least its lower portion submerged in the wetting agent in said trough. 
     
     
       5. The apparatus of claim 1 wherein said means (B) to apply pressure to said web includes a pair of closely spaced .Iadd.pressure controlled, non-deflective .Iaddend.rotating rollers .[.through.].  .Iadd.between .Iaddend.which said web passes. 
     
     
       6. The apparatus of claim 1 wherein said means (D) to apply pressure to said web includes a pair of closely spaced rotating rollers through which said web passes. 
     
     
       7. The apparatus of claim 6 in which at least one of said rotating rollers of means (D) has a grooved surface. 
     
     
       8. The apparatus of claim 1 in which said means (D) to apply pressure to said web includes a member having a grooved edge in contact with said web. .Iadd. 9. Apparatus for dyeing a continuously moving pile warp textile web which comprises: (A) means to apply a wetting agent to said web;   (B) means to apply uniform pressure to said web to improve the penetration of said wetting agent; and   (C) at least one means to apply a uniform, continuous dye film to the pile warp of said web, wherein each of said means is positioned in the sequence (A), (B), and (C) along the direction of movement of said web. .Iaddend..Iadd. 10. The apparatus of claim 9, wherein said means (A) to apply a wetting agent includes a container to hold said wetting agent, a rotating roller adapted to carry said wetting agent on its surface as received from said container, a scraper having one end adjacent said rotating roller and the other end adjacent and above said web, and positioned to remove wetting agent from said rotating roller to cause said   
     
     
        wetting agent to flow on said web. .Iaddend..Iadd. 11.  The apparatus of claim 10, wherein said container to hold wetting agent includes a trough and said rotating roller adapted to carry wetting agent on its surface is positioned above said trough with at least its lower portion submerged in the wetting agent in said trough. .Iaddend..Iadd. 12. The apparatus of claim 9, wherein said means to apply dye to said web includes a container to hold dye, a rotating roller adapted to carry dye on its surface as received from said container, a scraper having one end adjacent said rotating roller and the other end adjacent and above said web, and positioned to remove dye from said rotating roller to cause said dye to flow upon said web. .Iaddend..Iadd. 13. The apparatus of claim 12, wherein said container to hold dye comprises a trough and said rotating roller is positioned above said trough with at least the lower portion of said 
     
     
        rotating roller submerged in the dye in said trough. .Iaddend..Iadd. 14. The apparatus of claim 9, wherein said means (B) to apply pressure to said web includes a pair of closely spaced pressure controlled, non-deflective rotating rollers between which said web passes. .Iaddend..Iadd. 15. Apparatus for dyeing a continuously moving pile warp textile web which comprises: (A) means to apply a uniform, continuous wetting agent film to said web;   (B) non-deflective roller means to apply uniform pressure to said web to uniformly distribute the wetting agent on the web and improve the penetration of said wetting agent; and   (C) at least one means to apply a uniform, continuous dye film to the pile warp of said web, wherein each of said means is positioned in the sequence (A), (B), and (C) along the direction of movement of said web. .Iaddend..Iadd. 16. The apparatus of claim 15, wherein said non-deflective roller means comprises a pair of closely spaced, pressure controlled, non-deflective rollers between which said web passes. .Iaddend..Iadd. 17. The apparatus of claim 15, wherein said means (A) to apply a wetting agent includes a container to hold said wetting agent, a rotating roller adapted to carry said wetting agent on its surface as received from said container, a scraper having one end adjacent said rotating roller and the other end adjacent and above said web, and positioned to remove wetting agent from said rotating roller to cause said wetting agent to flow on   
     
     
        said web. .Iaddend..Iadd. 18.  The apparatus of claim 17, wherein said container to hold wetting agent includes a trough and said rotating roller adapted to carry wetting agent on its surface is positioned above said trough with at least its lower portion submerged in the wetting agent in said trough. .Iaddend..Iadd. 19. The apparatus of claim 15, wherein said means to apply dye to said web includes a container to hold dye, a rotating roller adapted to carry dye on its surface as received from said container, a scraper having one end adjacent said rotating roller and the other end adjacent and above said web, and positioned to remove dye from said rotating roller to cause said dye to flow upon said pile warp of said web. .Iaddend..Iadd. 20. The apparatus of claim 15, wherein said container to hold dye comprises a trough and said rotating roller is positioned above said trough with at least the lower portion of said rotating roller submerged in the dye in said trough.