Claims
- 1. A method for uniformly coating a textile material length with a liquid coating substance which comprises partially immersing a coating roller in a liquid coating substance disposed in a trough and dispensing said liquid coating substance through a narrow aperture defined by a curved surface of said coating roller and an overflow edge of the trough directly onto a planar liquid guiding element extending downwardly from said edge to a lower edge, flowing the liquid coating substance down over said guiding element and said lower edge, conveying the textile material length immediately below said lower edge, and coating the textile material length by flowing the liquid coating substance directly from said lower edge onto said textile material.
- 2. The method of claim 1 wherein the coated material is subsequently conveyed through a steaming chamber in loops.
- 3. The method of claim 1, wherein a small part of said coating roller is immersed within said liquid coating substance, and said coating roller is rotated towards the edge of said trough in order to dispense the liquid coating substance through said aperture.
- 4. The method of claim 3, which further comprises maintaining the level of the liquid coating substance closely adjacent to the edge of said trough and rotating said roller means upwards immediately in front of the edge of said trough.
- 5. The method of claim 1, wherein the other side of said textile material has a pile surface and said textile material length is conveyed over a roller positioned immediately below said guiding element and parallel to said overflow edge to cause the pile surface of the side of the textile material length to be coated to open thereby enabling better penetration of the liquid coating substance into said textile material length.
- 6. The method of claim 5, wherein steam is applied to one side of said material length directly prior to coating the material length with a liquid coating substance on the other side.
- 7. A method for uniformly coating a textile material length with a liquid substance which comprises partially immersing a coating roller means in a liquid coating substance contained within a trough, said trough having an edge which defines a slit closely adjacent to a curved surface of said coating roller means, rotating the immersed portion of said roller means towards said edge to effect dispensing of the liquid coating substance through said slit, a liquid guiding means including a planar liquid guiding element extending downwardly from said slit, conveying the material length to be coated closely adjacent to a lower edge of said guiding element and coating said material with the liquid substance dispensed through said slit by flowing the liquid substance directly from said slit down said guiding element directly onto said textile material length.
- 8. The method of claim 7, further comprising the step of directing steam onto one side of said textile material length immediately before coating the other side of said textile material with said liquid coating substance.
- 9. A method of claim 8, wherein the other side of said textile material has a pile surface and said textile material is conveyed over a roller positioned immediately below said liquid guiding means and parallel to said edge of said trough to cause the pile surface on the side of the textile material length to be coated to open thereby enabling better penetration of the liquid coating substance into said textile material length.
- 10. A method of uniformly coating a tufted carpet length with a dyeing liquor contained in a trough with a cylindrical roller being partially immersed in the dyeing liquor within said trough and said trough having an edge spaced from a cylindrical surface of the roller to define a slit therebetween, and a liquor guiding means extending downwardly from the edge of said trough, which comprises dispensing said dyeing liquor through said slit directly onto said liquor guiding means, flowing the dyeing liquor down said liquor guiding means, conveying the tufted carpet below and immediately adjacent to said liquor guiding means and coating the dyeing liquor onto one side of said tufted carpet length by flowing the dyeing liquor directly from said liquid guiding means onto said tufted carpet length.
- 11. The method of claim 10, wherein said tufted carpet is conveyed over a roller positioned immediately below said liquid guiding means and parallel to said edge of said trough to cause the surface of the side of the material to be coated to open thereby enabling better penetration of the dyeing liquor into said carpet.
- 12. The method of claim 11, which further comprises directing steam onto said tufted carpet length directly before coating with said dyeing liquor, said steam being directed only against said side of said tufted carpet length which is not coated.
- 13. The method of claim 11, wherein said liquid guiding means includes a substantially vertical flat liquor guiding element having a lower edge positioned in close proximity to said tufted carpet.
- 14. A method of uniformly coating a textile material length with a liquid coating substance which comprises maintaining a level of a liquid coating substance within a trough having an overflow edge, a liquid guiding means including a planar liquid guiding element extending downwardly from said edge, and means having a surface immersed within and extending downwardly in the liquid coating substance positioned closely adjacent to said overflow edge for defining a slit between said edge and said surface of said means, dispensing said liquid coating substance through said slit directly onto said guiding element, flowing the liquid coating substance down said guiding element, conveying the textile material length below and immediately adjacent to a lower edge of said guiding element and coating the liquid coating substance onto said textile material length by flowing said liquid coating substance directly onto said textile material length.
- 15. The method of claim 14, wherein maintaining of said level of liquid coating substance and dispensing of said liquid coating substance from said trough are effected by controlling the supply of the liquid coating substance to said trough.
- 16. The method of claim 14, wherein said textile material is a tufted carpet and said liquid coating substance is a dyeing liquor.
- 17. The method of claim 16, wherein said tufted carpet is conveyed on a roller positioned immediately below said liquid guiding means and parallel to said overflow edge to cause the surface of the side of the carpet to be coated to thereby open thereby enabling better penetration of the dyeing liquor into said carpet.
- 18. The method of claim 17, which further comprises directing steam onto said tufted carpet length immediately before coating with said dyeing liquor, said steam being directed only against that side of said tufted carpet length which is not coated whereby the tufted carpet is further opened prior to application of said dyeing liquor.
- 19. A method of uniformly coating a tufted carpet with a dyeing liquor contained in a trough with a cylindrical coating roller being partially immersed in the dyeing liquor within said trough and said trough having an overflow edge spaced from a cylindrical surface of the coating roller to define a slit therebetween, a substantially vertical planar liquor guiding element extending from said overflow edge downwardly and a guide roller positioned immediately below said guiding element and parallel to said overflow edge for conveying the tufted carpet, which comprises dispensing said dyeing liquor through said slit directly onto said guiding element, flowing the dyeing liquor down said guiding element, conveying the tufted carpet below and immediately adjacent to said guiding element, over said guide roller to cause the side of the surface of the tufted carpet to be coated to open thereby enabling better penetration of the dyeing liquor into said carpet and coating the dyeing liquor onto said opened surface of said carpet by flowing the dyeing liquor directly from said guiding element onto said tufted carpet.
- 20. The method of claim 19, which further comprises directing steam onto said tufted carpet directly before coating with said dyeing liquor, said steam being directed only against the side of said tufted carpet which is not coated.
Priority Claims (3)
Number |
Date |
Country |
Kind |
1810361 |
Nov 1968 |
DT |
|
1921499 |
Apr 1969 |
DT |
|
1930115 |
Jun 1969 |
DT |
|
Parent Case Info
This is a division, of application Ser. No. 876,881 filed Nov. 14, 1969 now U.S. Pat. No. 3,683,648.
US Referenced Citations (16)
Foreign Referenced Citations (2)
Number |
Date |
Country |
754,505 |
Mar 1967 |
CA |
1,086,301 |
Oct 1967 |
UK |
Divisions (1)
|
Number |
Date |
Country |
Parent |
876881 |
Nov 1969 |
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