US3457898A - Apparatus for treating a continuous web or film of material with a liquid - Google Patents

Apparatus for treating a continuous web or film of material with a liquid Download PDF

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Publication number
US3457898A
US3457898A US648152A US3457898DA US3457898A US 3457898 A US3457898 A US 3457898A US 648152 A US648152 A US 648152A US 3457898D A US3457898D A US 3457898DA US 3457898 A US3457898 A US 3457898A
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United States
Prior art keywords
liquid
tank
distributor
orifices
treating
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Expired - Lifetime
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US648152A
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English (en)
Inventor
Ulrich Frauchiger
Joseph Becheiraz
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BASF Schweiz AG
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Ciba AG
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Publication date
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    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
    • D06B3/00—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating
    • D06B3/10—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating of fabrics
    • D06B3/20—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating of fabrics with means to improve the circulation of the treating material on the surface of the fabric
    • D06B3/201—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating of fabrics with means to improve the circulation of the treating material on the surface of the fabric the treating material being forced through the textile material

Definitions

  • US. Cl. 118419 16 Claims ABSTRACT OF THE DISCLOSURE Apparatus for treating webs or films of material, such, as paper, fabric or photographic film comprises a distributor within a tank.
  • the material to be treated is led past the distributor from which treating liquid issues through slit-like nozzles in turbulent motion.
  • the distributor may comprise a bank of orificed tubes each having at least two, and preferably three, elongated spaced strip-like baffle plates therebelow, so arranged that the edges of the bafiie plates define between them the nozzles, or may comprise a pressure-tight vessel having channel means in its side, the mouths of the channel means defining the nozzles.
  • Means are provided for feeding the liquid to the distributor and for withdrawing it form the tank.
  • the material may pass down the tank and back past both sides of the distributor and be led at its lower end over a freely rotatable return roller. lets of treating liquid may be directed into the gap between the material and the roller to cushion the material.
  • This invention relates to apparatus for treating continuous webs or films of material, such as paper or fabric webs, or photographic films, with a liquid.
  • Yet another object of the invention is to ensure that the velocity distribution over large surface areas is uniform. This is a matter of major importance in cases in which the relative velocities between the liquid and the treated surface and the period of contact directly govern the intensity of the effect that is desired, as is the case for instance in dyeing processes or in the processing of an exposed photographic film.
  • apparatus for treating a continuous web or film of material with a liquid comprising a tank for receiving said liquid, means for admitting liquid into the tank, means determined path, the arrangement being such that, when the apparatus is in operation, the liquid issues from said nozzles in turbulent flow and is directed on to the traveling material.
  • the distributor means comprises a plurality of orificed distributor tubes placed with their axes parallel and alongside the predetermined path of travel of the material, and the slit-like nozzles are preferably constituted by the edges of a plurality of superposed elongated strip-like plates disposed in parallel the one behind the other, each plate, with the exception of the last plate remote from the orifices in its associated distributor tube, being provided with at least one opening in the path of the jets of liquid issuing from the orifices, the cross-sections of said openings extending at least partly over solid surface parts of the following plate in the path of the jets.
  • FIG. 1 is an elevational section of a tank equipped with a distributor, the section being taken in a plane parallel to a bank of tubes which together 'formjthe distributor,
  • FIG. 2 is a section taken on the line IIII in FIG. 1,
  • FIG. 3 is a section of a detail in FIG. 2, drawn to a larger scale
  • FIG. 4 is a part sectional perspective view ofanother distributor
  • FIG. 5 is a section taken on the line V-V in FIG.
  • FIGS. 1 to 3 of the drawings there is shown a distributor, generally indicated by 1, which is vertically built into a tank 2.
  • the distributor comprises tubes 3a, 3b, 3c, 3d and 32 forming a bank of axially parallel coplanar tubes parallel to the path of travel of a material to be treated as indicated in FIG. 2 by a thin line 4.
  • Each tube is formed with a row of orifices 5 situated on at least one line of intersection of the tube with the plane containing the axes of the tubes in the-bank.
  • baflles or flow-deflecting elements which in the illustrated embodiment have the form of three parallel relatively spaced elongated strip like bafile plates 6, 7 and 8 facing the row of orifices and placed the one behind the other.
  • the two plates 6 and 7 nearest the row of orifices are each formed with a slot 9 and 10 respectively, the longitudinal centre lines of the slots being likewise contained in the plane containing the tube axes and the rows of orifices 5, but the plate 8 furthest away from the orifices is not formed with such a slot.
  • FIG. 3 which also shows the general arrangement and the relative sizes of the slots 9 and 10.
  • a suction tube 12 which extends parallel to the distributor tubes 3a to Sc, and which is formed at its periphery with orifices having a total open cross-section at least equal to the total open cross- 20B.
  • Each of these two chambers has a separate consection of the orifices in all the distributor tubes in the bank.
  • the orifices in the suction tube align along the bottom generator of the tube.
  • the distributor 1, the baflle or deflector plates 6, 7, and 8, the suction tube 12 and preferably the roller 11 for the treated material form a structural entity built into the tank as a unit.
  • the tank 2 is filled with the treating liquid and the material to be treated is fed along the path 4 and around the return roller 11 by conventional means not shown in the drawings.
  • the treating liquid is admitted to the tanks via a manifold 33 which communicates with one end of each of the tubes 3a-3e which are all closed at their other ends.
  • the liquid issues as a series of jets from the orifices 5 and some of its strikes the baffle plate 6 causing turbulent motion of the surrounding liquid which flows over the edge of the plate 6 to be directed onto the travelling material.
  • Some of the jet of liquid passes through the aperture 9 to strike the baflle plate 7 while some of the jet passes through the aperture 10 to strike the plate 8.
  • liquid striking the plates 7 and 8 causes turbulent motion of the surrounding liquid so that the liquid, in turbulent motion issues from the slit-like nozzles defined by the edges of the plates 6 and 7, and 7 and 8 respectively to be directed onto the travelling material.
  • the liquid is withdrawn from the tank by the suction pipe 12.
  • the distributor illustrated in FIGS. 4 and 5 comprises a pressure-tight vessel which has two side walls 21 and 22 which are parallel to the planes in which a material to be treated travels. Each of these walls is formed with open channels 23 which extend crosswise of the path 4a, 4b of the travelling material. A wall portion 23a of these channels projecting substantially perpendicularly inwards from the walls 21 and 22 of the tank is formed with a row of orifices 24. Inside each channel a narrow strip-shaped part 23b of the internal channel wall which likewise projects substantially perpendicularly from the distributor walls 21 and 22 faces the orifices. Each channel is completely open towards the path of the treated material. This is an important feature because the presence of obstructions of any kind might operate to reduce the turbulence generated inside the channels.
  • a returnroller 11 and one chain wheel 25 is all that can be seen in FIG. 4 of means for conveying the material to be treated. These elements are directly mounted on the pressure-tight vessel and thus together therewith form a structural unit which can be built into a tank in exactly the same way as the distributor unit shown in FIGS. 1 and 2.
  • a second chain wheel (not shown) is mounted at the front end of the return roller 11 in FIG. 4.
  • the chain wheels deflect a chain (not shown) for entraining the treated web of material.
  • the pressure-tight vessel illustrated in FIG. 4 is horizontally divided into two separate chambers 20A and nection for the supply of a treating liquid under pressure.
  • the connection into the upper chamber 20A is indicated at 26, whereas that for the lower chamber is a pipe 27 which extends downwards through the upper chamber into the lower chamber.
  • the top of the pressure-tight vessel is further provided with a cover 28 which tightly closes an inspection and cleaning window.
  • the pressure-tight vessel according to FIG. 4 is intended to be built into a tank 2 (similar to the tank 2 shown in FIG. 2) which is fitted with a separate connection for the extraction of the liquid, or with an overflow.
  • the pressure-tight vessel itself might be further subdivided to form at least one suction chamber.
  • the bottom chamber 20B which is shown in cross-section in FIG. 5 is formed with a semi-cylindrical convex bulge 29 extending parallel with and lengthwise of the return roller.
  • This convex bulge contains a row of orifices 30 along the length of the roller 11.
  • these orifices 30 are so disposed that the jets issuing therefrom are directed into the wedge-shaped gap between the roller surface and the surface of the material 4a running onto the roller.
  • These jets likewise consist of the treating liquid which can be introduced into chamber 20B through the pipe 27 at a pressure above that of the liquid entering the chamber 20A through the pipe 26.
  • These elfects can be further assisted by a deflector strip 31.
  • the distance of the jet orifices 30 from the surface of the roller 11 is only a fraction of the roller diameter, preferably said distance being between 1 and 10 mm.
  • the present method of guiding the treated material over a freely rotatable roller which is jet driven, and upon which a liquid cushion is formed, may be used with advantage wherever it is desired to deflect continuous webs or films of material in a liquid.
  • Apparatus for treating a continuous web or film of material with a liquid comprising a tank for receiving said liquid, means for admitting liquid into the tank, means for withdrawing the liquid from the tank, means for conveying the material to be treated through the tank along a predetermined path, distributor means including orifices for said liquid positioned within the tank adjacent to said predetermined path and connected to the means for admitting liquid into the tank, and baffle means arranged facing the orifices of said distributor means and disposed at a steep angle to said predetermined path, said orifices are disposed for directing jets at a steep angle onto said baffle means, so that, when the apparatus is in operation, the liquid issues from said baflle means in turbulent flow and is directed onto the travelling material.
  • Apparatus as claimed in claim 1 wherein the angle between the jets and the baffle means is about 3.
  • Apparatus for treating a continuous web or film of material with a liquid comprising a tank for receiving said liquid, means for admitting liquid into the tank, means for wthdrawing the liquid from the tank, means for conveying the material to be treated through the tank along a predetermined path, distributor means including orifices for said liquid positioned within the tank adjacent to said predetermined path and connected to the means for admitting liquid into the tank, and baffle means ar ranged facing the orifices of said distributor means and disposed at a steep angle to said predetermined path, said orifices are disposed for directing jets at a steep angle onto said baffle means, said distributor means comprises a plurality of distributor tubes placed with their axes parallel and forming a bank alongside said predetermined path, portions of each tube defining orifices which are arranged in a row, said baffle means comprises at least two superimposed elongated strip-like baffle plates
  • Apparatus as claimed in claim 5, wherein the means for withdrawing the liquid from the tank includes an orificed suction tube extending parallel to and below the distributor tubes.
  • Apparatus for treating a continuous web or film of material with a liquid comprising a tank for receiving said liquid, means for admitting liquid into the tank, means for withdrawing the liquid from the tank, means for conveying the material to be treated through the tank along a predetermined path, distributor means for said liquid positioned within the tank adjacent to said predetermined path and connected to the means for admitting liquid into the tank, said distributor means comprises a pressure-tight vessel, at least one side wall of said vessel lying substantially parallel to said predetermined path, orificed channel means let into each side wall of the vessel extending in a direction transverse to the intended direction of travel of the material, the orifices in said channel means communicating with the interior of the vessel and are disposed for directing jets at a steep angle onto an area of the channel wall which is disposed at a steep angle to said predetermined path, so that, when the apparatus is in operation, the liquid issues from the mouths of the channel means in turbulent flow and is directed onto the travelling material.
  • Apparatus for treating a continuous web or film of material with a liquid comprising a tank for receiving said liquid, means for admitting liquid into the tank,
  • Apparatus for treating a continuous web or film of material with a liquid comprising a tank for receiving said liquid, means for admitting liquid into the tank, means for wthdrawing the liquid from the tank, means for conveying the material to be treated through the tank along a predetermined path, distributor means for said liquid positioned within the tank adjacent to said predetermined path and connected to the means for admitting liquid into the tank, said distributor means comprises a pressure-tight vessel, at least one side wall of said vessel lying substantially parallel to said predetermined path, orificed channel means let into each side wall of the vessel extending in a direction transverse to the intended direction of travel of the material, the orifices in said channel means communicating with the interior of the vessel and are disposed for directing jets at a steep angle onto an area of the channel wall which is disposed at a steep angle to said predetermined path, said predetermined path extends from the top of the tank to the bottom and back to the top, the return of the travelling material inside the tank being effected over a freely rotatable

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Paper (AREA)
US648152A 1966-06-23 1967-06-22 Apparatus for treating a continuous web or film of material with a liquid Expired - Lifetime US3457898A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH911866A CH458265A (de) 1966-06-23 1966-06-23 Einrichtung zur Flüssigkeitsbehandlung von bahnförmigem Material
CH692967A CH476525A (de) 1966-06-23 1967-05-17 Einrichtung zur Flüssigkeitsbehandlung von bahnförmigem Material

Publications (1)

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US3457898A true US3457898A (en) 1969-07-29

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US648152A Expired - Lifetime US3457898A (en) 1966-06-23 1967-06-22 Apparatus for treating a continuous web or film of material with a liquid

Country Status (9)

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US (1) US3457898A (fr)
AT (1) AT295992B (fr)
BE (1) BE700360A (fr)
CH (2) CH458265A (fr)
DE (1) DE1610925A1 (fr)
FR (1) FR1548316A (fr)
GB (1) GB1183517A (fr)
NL (1) NL6708728A (fr)
SE (1) SE305398B (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3911701A (en) * 1973-12-17 1975-10-14 Gaston County Dyeing Mach Carpet fabric washing means
US5136323A (en) * 1990-12-28 1992-08-04 Eastman Kodak Company Apparatus for enhancing heat and mass transfer in a fluid medium
US5239327A (en) * 1990-12-28 1993-08-24 Eastman Kodak Company Processor for light sensitive material

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1579003A (en) * 1926-03-30 Method oe
US3192845A (en) * 1962-03-27 1965-07-06 Houston Schmidt Ltd Apparatus for transporting film strips on a fluid cushion
US3310062A (en) * 1965-05-27 1967-03-21 Ibm Web tensioning device
US3344729A (en) * 1964-06-22 1967-10-03 Itek Corp Photographic sheet material processing apparatus

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1579003A (en) * 1926-03-30 Method oe
US3192845A (en) * 1962-03-27 1965-07-06 Houston Schmidt Ltd Apparatus for transporting film strips on a fluid cushion
US3344729A (en) * 1964-06-22 1967-10-03 Itek Corp Photographic sheet material processing apparatus
US3310062A (en) * 1965-05-27 1967-03-21 Ibm Web tensioning device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3911701A (en) * 1973-12-17 1975-10-14 Gaston County Dyeing Mach Carpet fabric washing means
US5136323A (en) * 1990-12-28 1992-08-04 Eastman Kodak Company Apparatus for enhancing heat and mass transfer in a fluid medium
US5239327A (en) * 1990-12-28 1993-08-24 Eastman Kodak Company Processor for light sensitive material
US5315338A (en) * 1990-12-28 1994-05-24 Eastman Kodak Company Apparatus for enhancing heat and mass transfer in a fluid medium

Also Published As

Publication number Publication date
CH458265A (de) 1968-06-30
NL6708728A (fr) 1967-12-27
CH476525A (de) 1969-08-15
SE305398B (fr) 1968-10-21
BE700360A (fr) 1967-12-22
GB1183517A (en) 1970-03-11
DE1610925A1 (de) 1971-02-25
AT295992B (de) 1972-01-25
FR1548316A (fr) 1968-12-06

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