Claims
- 1. In a process for the batch treatment of textile material in the raw, unscoured state with a liquid treating agent, the improvement comprising: placing the textile material to be treated in an enclosed first zone and applying a substantial vacuum to the first zone to produce a greatly reduced subatmospheric pressure therein; providing the fluid treating agent in a second zone and placing the treating agent in said second zone under a positive pressure at least as great as atmospheric pressure; placing the first zone in communication with the second zone through a relatively large diameter conduit; and effecting a very rapid transfer of said treating agent from said second zone through said conduit and into said first zone wherein said treating agent flows through said textile material, said transfer taking place at a flow rate of at least about 500 gallons of said treating agent per minute so that said treating agent is uniformly distributed over the surfaces of said textile material substantially immediately after the textile material is first contacted by said treating agent; and said treating agent including a dyestuff mixed with an alkaline scouring agent whereby the textile material is simultaneously scoured and dyed when treated with said treating agent.
- 2. The process defined in claim 1 including heating the treating agent to a predetermined temperature while in the second zone and wherein the textile material includes a yarn package in the form of yarn wound on a fluid pervious tube, and further wherein the flow of said treating agent through said textile material is in a controlled direction wherein the treating agent is constrained to flow from the interior of said yarn package outwardly through the yarn.
- 3. The process defined in claim 2 wherein the pressure in the second zone is 0-75 p.s.i., and wherein the vacuum in said first zone is approximately 26-28 inches of mercury, i.e. about 2-4 inches of mercury absolute pressure.
- 4. The process defined in claim 3 wherein the treating agent is heated to approximately 160.degree.-220.degree.F. while in said second zone and prior to transfer into said first zone.
- 5. The process defined in claim 4 wherein the treating agent is subjected to a positive pressure of about 50-75 p.s.i. while in said second zone and prior to transfer into said first zone.
- 6. The process defined in claim 3 wherein the textile material comprises cellulosic fibers.
- 7. The process defined in claim 6 wherein the treating agent includes a salt added to the dyestuff and scouring agent.
- 8. The process defined in claim 6 wherein the dyestuff is a naphthol dye.
- 9. The process defined in claim 3 wherein the textile material comprises polyester.
- 10. The process defined in claim 3 wherein the textile material comprises wool.
- 11. The process defined in claim 2 wherein both the vacuum in the first zone and the positive pressure in said second zone are maintained during the step of transferring the treating agent between the zones.
- 12. The process defined in claim 2 wherein substantially the entire charge of treating agent in said second zone is transferred through the textile material and into said first zone in a range of about 0-30 seconds after the two zones are placed in communication with each other.
- 13. The process defined in claim 12 wherein the charge of treating agent is over five hundred gallons.
- 14. The process defined in claim 12 wherein the charge of treating agent comprises at least about 800 gallons and wherein substantially the entire charge of said treating agent in said second zone is transferred to said first zone in a range of about 0-18 seconds.
- 15. The process defined in claim 1 wherein the treating agent is recirculated between the second and first zones and through the textile material.
- 16. The process defined in claim 1 wherein the textile material comprises a blend of polyester and cellulosic fibers.
- 17. The process defined in claim 1 wherein the textile material comprises polyester.
- 18. The process defined in claim 1 wherein the textile material comprises textured polyester fibers.
- 19. In a process for the batch treatment of textile material in the raw unscoured state with a liquid treating agent including a dye liquor, the improvement comprising: placing the textile material to be treated in an enclosed first zone and applying a substantial vacuum in the range of about 2-4 inches of mercury, absolute pressure, to the first zone to produce a greatly reduced subatmospheric pressure therein; providing the liquid treating agent in a second zone and heating it therein, placing the treating agent in said second zone under a positive pressure at least as great as atmospheric pressure; placing the first zone in communication with the second zone through a relatively large diameter conduit; and effecting a very rapid initial transfer of said treating agent from said second zone through said conduit and into said first zone wherein said treating agent flows through said textile material in an inside-out direction, said transfer taking place at a flow rate of at least about 500 gallons of said treating agent per minute so that said treating agent is uniformly distributed over all or substantially all of the surfaces of said textile material substantially immediately after the textile material is first contacted by said treating agent and so that said surface of said textile material are initially exposed to or wetted by the treating agent at uniform or substantially uniform concentration of said dye liquor; and said treating agent also including an inorganic scouring agent whereby the textile material is simultaneously scoured and dyed when treated by said treating agent.
- 20. The process defined in claim 19 wherein the textile material comprises cellulosic fibers.
- 21. The process defined in claim 20 wherein the treating agent also includes a salt.
- 22. The process defined in claim 20 wherein the dyestuff is a naphtol dye.
- 23. The process defined in claim 19 wherein the textile material comprises polyester.
- 24. The process defined in claim 19 wherein the textile material comprises wool.
- 25. The process defined in 19 wherein substantially the entire charge of treating agent in said second zone is transferred through the textile material and into said first zone extremely rapidly and in a range of about 0-30 seconds after the two zones are placed in communication with each other, and further wherein the volume of said entire charge of treating agent is at least about 500 gallons.
- 26. The process defined in claim 25 wherein the volume of the entire charge of treating agent is over about 900 gallons, and wherein said entire charge is transferred from said second zone into first zone in less than about 20 seconds.
- 27. The process defined in claim 19 wherein said inorganic scouring agent is an acidic scouring agent.
- 28. In a process for the batch treatment of cotton, rayon, or synthetic fibers or combinations thereof in the raw unscoured state with a liquid treating agent including a dye liquor, the improvement comprising: placing the textile material to be treated in an enclosed first zone and applying a substantial vacuum in the range of about 2-4 inches of mercury, absolute pressure, to the first zone to produce a greatly reduced subatmospheric pressure therein; providing the liquid treating agent in a second zone and heating it therein, placing the treating agent in said second zone under a positive pressure at least as great as atmospheric pressure; placing the first zone in communication with the second zone through a relatively large diameter conduit; and effecting a very rapid initial transfer of said treating agent from said second zone through said conduit and into said first zone wherein said treating agent flows through said textile material in an inside-out direction, said transfer taking place at a flow rate of at least about 500 gallons of said treating agent per minute so that said treating agent is uniformly distributed over all or substantially all of the surfaces of said textile material substantially immediately after the textile material is first contacted by said treating agent and so that said surfaces of said textile material are initially exposed to or wetted by the treating agent at uniform or substantially uniform concentration of said dye liquor; and said treating agent also including an inorganic scouring agent whereby the textile material is simultaneously scoured and dyed when treated by said treating agent.
Parent Case Info
This is a continuation of application Ser. No. 324,673 filed Jan. 18, 1973, now abandoned, which in turn was a continuation of application Ser. No. 109,540 filed Jan. 25, 1971, now abandoned.
US Referenced Citations (6)
Continuations (2)
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Number |
Date |
Country |
Parent |
324673 |
Jan 1973 |
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Parent |
109540 |
Jan 1971 |
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