US3825974A - Apparatus for impregnating textile fibers - Google Patents

Apparatus for impregnating textile fibers Download PDF

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Publication number
US3825974A
US3825974A US00347351A US34735173A US3825974A US 3825974 A US3825974 A US 3825974A US 00347351 A US00347351 A US 00347351A US 34735173 A US34735173 A US 34735173A US 3825974 A US3825974 A US 3825974A
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Prior art keywords
discs
cover plates
face sides
pair
liquid
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Expired - Lifetime
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US00347351A
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English (en)
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W Naegeli
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Pavena AG
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Pavena AG
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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
    • D06B5/00—Forcing liquids, gases or vapours through textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing impregnating
    • D06B5/02—Forcing liquids, gases or vapours through textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing impregnating through moving materials of indefinite length
    • D06B5/04—Forcing liquids, gases or vapours through textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing impregnating through moving materials of indefinite length through slivers or rovings

Definitions

  • ABSTRACT An apparatus for continuously impregnating a throughpassing textile fiber arrangement with liquid, comprising a pair of discs rotatably supported in a machine frame and arranged with circumferential surfaces opposite to each other for throughpassing the fiber arrangement between said circumferential surfaces.
  • Two cover plates are provided, each of which is laterally arranged at face sides of said pair of discs and having a surface opposite to saidface sides of said pair of discs, said cover plates covering said face sides with 1 a small clearance between. said surface and said face sides and being located in the machine frame.
  • BACKGROUND OF THE INVENTION such as produced as a continuous untwisted arrangement, e.g. as card sliver or draw frame sliver or as web at the delivery side of a drafting arrangement.
  • This term also is to be understood to comprise bundles or strands of endless filaments.
  • liquid in the singular or plural, is to be understood to comprise water or solvents or any solutions, dispersions andemulsions of any materials (e.g.
  • impregnate is to be understood to comprise the coating of the individual fibers or the individual filaments respectively of the fiber arrangement with a film of liquid as well as also a homogeneous, fine droplet-type distribution of the liquid in the fiber arrangement or a combination of both.
  • a furtherconsiderable object of this invention has reference to an improved apparatus for continuously impregnating a fiber arrangement with liquid in order to avoid penetration of the extraordinarily fine fibers between the discs and the cover plates.
  • an apparatus for continuously impregnating a throughpassing textile fiber arrangement with liquid which comprises a pair of discs rotatablysupported in a machine frame and arranged with circumferential surfaces opposite to each other for throughpassing the fiber arrangement between said circumferential surfaces.
  • cover plates each of which is laterally arranged at face sides of said pair of discs and having a surface opposite to said face sides of said pair of discs, said cover plates covering said face sides with a small clearance between said surface and said face sides and being located in the machine frame.
  • the discs and the cover plates are arranged to be shiftable'relative to each other, as viewed in the direction of the axes of rotation of the discsJ'Openings provided in the cover plates are arranged at a region of the cover plates opposite to said face sides of said pair of discs for supplying under pressure impregnating liquid to said face sides.
  • FIG. 1 is a cross-sectional view along line I-I of FIG. 2 of an apparatus for continuously impregnating a fiber arrangement with liquid;
  • FIG. 2 illustrates a top plan view of the apparatus ac cording to FIG. 1;
  • FIG. 3 is a cross-sectional view along line IIIIII of FIG. 4 of an alternative embodiment of the apparatus shown in FIGS. 1 and 2;
  • FIG. 4 is a cross-sectional view along line IV-IV of FIG. 3 of the embodiment shown in FIG. 3;
  • FIG. 5 is a top plan view of a further embodiment of the apparatus according to FIGS. 3 and 4;
  • FIG. 6 schematically illustrates a detail which can be used in all embodiments herein disclosed
  • FIG. 7 is a cross-sectional view along line VII-VII of FIG. 6;
  • FIG. 8 schematically illustrates a variant of the embodiment shown in FIG. 7
  • the apparatus for continuously impregnating a fiber arrangement according to FIGS. 1 and 2 consists of a pair of discs 1 and 2 of the same diameter, and laterally arranged rigid cover plates 3 and 4, the cover plate 3 being mounted on a machine frame (not shown in FIGS. l and 2), but like machine frame 35 depicted in FIG. 4.
  • the discs I and 2 are rotatably supported on a shaft 1' and 2 respectively and axially shiftable between the cover plates 3 and 4.
  • the disc 1 is rotatable inthe direction indicated by arrow A. For rotating the disc 1 the shaft 1' can be connected with a suitable drive (not shown).
  • the disc 2 can rotate in the direction indicated by arrow B and furthermore is subjected to a loading force, under the influence of which this disc 2 is shiftable with respect to the disc 1 in the directions indicated by the double arrow G and can adapt its position to the material cross-section of fiber material passing through a pressure Zone of a length D (FIG. 1), formed by the discs 1, 2, i.e. by circumferential surfaces or peripheral portions thereof and the cover plates 3 and 4 respectively.
  • the cover plates 3 and 4 are each provided with a raised or elevated pressure surface forming limiting planes or surfaces 5 and 6 situated opposite to face sides 7 and 8 respectively of the discs 1 and 2 respectively (FIG. 2).
  • the limiting planes 5 and 6 of the cover plates 3 and 4 are maintained at a mutual distance from one another by spacer studs 9 and are rigidly interconnected by screws 9 (FIG. 2).
  • the cover plates 3 and 4 are provided with openings 10, 11 and 12, 13 respectively connected to supply ducts 14 and merging with the limiting planes 5 and 6 respectively, facing the pair of discs 1 and 2.
  • the distance between the limiting planes 5 and 6 exceeds the width b of the discs 1 and 2 and can be approximately in the range ofb +0.01 mm to b +0.3 mm, thus providing a small clearance between the face sides 7, 8 and the limiting planes 5, 6 of the cover plates 3, 4 respectively.
  • the distance can depend on the viscosity and the type of liquid used, the pressure of the liquid in the supply ducts 14, the elasticity of the disc material, and the pressure between the discs 1, 2.
  • the impregnating liquid is brought in or supplied via the supply ducts 14 at a uniform and high pressure and via the openings 10, 11 and 12, 13 respectively, and is forced out in the directions ofv the arrows F and F indicated in FIG. 1 along the disc face side-limiting planes 5 and 6 respectively of the pair of discs 1 and 2 respectively.
  • the clearance between the face sides 7, 8 of the discs 1, 2 and the limiting planes 5, 6 of the cover plates 3, 4 constantly remain filled with impregnating liquid. Owing to the supply of liquid from all sides, i.e.
  • the axially shiftable discs 1 and 2 adapt themselves to equal liquid film thickness on both disc face sides 7 and 8, i.e. the discs 1 and 2 automatically are centered to the middle position with respect to the cover plates 3, 4.
  • the fiber arrangement is imbued with liquid at the converging space or room 81, passes through the pressure zone D where the fiber arrangement 15 is subjected to a high specific pressure, and is delivered as an impregnated compact untwistedfiber arrangement 16. Because of the flow of the liquid in the direction 'of the arrows F the danger of fibers becoming jammed between the face sides 7, 8 of the discs 1, 2 and their lateral cover plates 3, 4 during the passage of the material is substantially eliminated and cannot occur.
  • FIGS. 3 and 4 An alternative embodiment of the apparatus from that depicted in FIGS. 1 and 2 has been shownin FIGS. 3 and 4.
  • Lateral cover plates 19 and 20 are screwed tgether by means of spacer studs 21 so that they form a rigid block 82, the distance between their limiting planes 22 and 23 exceeding the width b of the discs 17 and 18 respectively having the face sides 24 and 25 respectively.
  • the face sides 24 and 25 of the discs 17 and 18 respectively are covered along the entire circumference and almost completely by the limiting planes 22 and 23 so that a guiding area for the discs 17 and 18 is increased. 1 i
  • the cover plate 19 is provided with openings formed as bores 26 and 27 for introducing the impregnating liquid. These bores 26 and 27 open into liquid distribution grooves 28-and 29 arranged at the region of and opposite to the face sides 24 and 25 of the discs 17 and 18 respectively. Plate 20,analogous to plate 19, is likewise symmetrically provided with bores 30 and 31 merging with their corresponding liquid distribution grooves 32 and 33 respectively. In the same manner as described for the embodiment of FIGS. 1 and 2 the bores 26 and 27 can be connected to supply ducts, similar to the ducts l4.
  • the disc 17 is supported and guided axially by a shaft or axle 34 in machine frame 35, and can be connected to a suitable drive (not shown) in order to rotate the disc 17 in the direction indicated by arrow H.
  • the cover plates 19 and 20 screwed together and formed into the rigid block 82 are guided in the plane of the discs 17 and 18 by the'face sides 24 of the disc 17.
  • the cover plate block 82 is merely supported on two stops 36 and 37 connected with the machine frame 35. Thus, there is not present any rigid connection between the cover plate block 82 and the machine frame 35.
  • the disc 18, which is arranged to be rotatable in the direction indicated by arrow H is supported to be axially shiftable.
  • the disc 18 is arranged to be displaceable or shiftable in the directions indicated by the double arrow L in order to adapt its position to the thickness of the fiber material in the pressure zone D, under a loading pressure acting on the disc 18. Correct guiding of the disc 18 in the plane determined by the disc 17 is effected via its face sides 25 by the limiting'planes 22 and 23 of the cover plates 19 and 20 respectively.
  • a converging space or room 81 is located in front of the pressure D for consolidating the fiber arrangement 15.
  • the impregnating liquid is introduced via the bores 26 and 27 of the cover plate 19 and via the bores 30 and 31 of the cover plate 20 under equal and relatively high pressure and via the liquid distribution grooves 28, 29 and 32, 33'respectively, and is forced out against the face sides 24 and 25 of the pair of discs in the direction indicated by the arrows M and M (FIG. 3).
  • the small clearances provided by the width between the face sides 24, 25 and the limiting planes 22, 23 constantly remain filled with liquid.
  • the disc 17 which is guided axially and rigidly supported in the machine frame 35 is to be considered as the master disc and the rigid cover plate block 82 merely supported by the stops 36 and 37 thus is automatically centered axially into the plane determined by the disc 17 owing to the liquid films of equal thickness generated on both face sides 24, i.e. the cover plate block floats, as seen in the axial direction of the disc 17 in the middle of the disc 17.
  • the thickness of the liquid film on both face sides 24 of the disc 17 can be chosen in the range of 0.005 mm to 0.15 mm.
  • the axially easily shiftable and sufficiently movably supported disc 18 in turn adapts its position with respect to the cover plate block 82 via liquid films of equal thickness on both face sides 25, so that it is centered into the disc plane determined by the disc 17.
  • the impregnation liquid flowing from the liquid distribution grooves 28, 29 and 32, 33 in the direction indicated by the arrows M towards the inside of discs 17, 18 is collected and drained via bores 38, 39 and 40, 41 provided in the cover plates 19 and 20 respectively opposite to an inside area of the face sides 24, of discs 17 and 18 respectively.
  • the liquid drained through the bores 38, 39 and 40, 41 can be recycled into a liquid system provided for feeding liquid to the bores 26, 27 and 30, 31 respectively by any suitable and therefore not particularly illustrated means.
  • FIG. 5 A variant embodiment of the apparatus from that shown in FIGS. 3 and 4 is depicted in top plan view in FIG. 5.
  • a master disc 42 is supported and guided axially by an axle or shaft 43 in a machine frame 44. Face sides 52 of the disc 42 are enclosed by cover plates 45 and 46 forming limiting planes 45' and 46 respectively located opposite the face sides 52.
  • a disc 47 is also axially easily movably arranged and sufficiently movably supported in the disc plane by any suitable means not particularly shown in the drawing. Face sides 53 of the disc 47 are also laterally covered by the cover plates 45 and 46, the limiting planes 45 and 46 also being arranged opposite to these face sides 53.
  • tension studs 48 are rigidly anchored in an arrangement like that of FIG. 3.
  • aligning bores 49 corresponding to the tension studs 48.
  • the cover plates 45 and 46 are provided with supply openings and liquid distribution grooves through which the impregnating liquid is forced out against the face sides 52 and 53 of the discs 42 and 47 respectively.
  • the thickness of the supporting liquid film and the liquid throughput easily can be adapted to the fiber material to be processed by adapting the pressure of the liquid and/or by adapting the area pressure K.
  • optimum operating conditions can be established, and friction and wear between the discs 42, 47 and the cover plates 45, 46 can be kept to a minimum.
  • FIGS. 6 and 7 there is shown a detail which can be used in all embodiments of the apparatus described hereinbefore. I
  • a cover plate 56 having a limiting plane or surface'57 is provided with openings 58 and 59 respectively,- for introducing the impregnating liquid.
  • the openings 58 and 59 merge with distributiongrooves 60 and 61 respectively.
  • the cover plate 56 is provided with converging recesses and 66 extending in the direction of rotationof the discs 63 and 64 indicated by the arrows R and R respectively.
  • the disc circumferential surfaces 63 and 64 are merely indicated with broken lines in FIG. 6 for improved clarity.
  • the converging recesses 65 and 66 are covered by disc face sides 83 and 84 respectively and connected with the supply openings 58 and 59 and the liquid distribution grooves 60 and 61 respectively.
  • FIG. 7 depicting a developed section along line VlI-VII of FIG. 6, the converging recess 65 is formed or bounded by wedge surface 67 and the converging recess 66 likewise by its associated wedge surface 67 at the cover plate 75.
  • the term input quadrant as employed herein, designates the quadrant of the circumferential surfaces 63, 64' which faces the fiber arrangement 62 entering the apparatus;
  • a converging recess 68 also can be constituted by a circular surface 71 merging asymtotically into the limiting surface 70 of the cover plate 69.
  • each apparatus is provided with four converging recesses arranged mutually symmetrically.
  • the pair of discs 63 and 64 is rotated in the direction of the arrows R, R so that the impregnating-liquid brought in under low pressure, e.g. below 10 Atm. (above atmospheric pressure) is increasingly compressed in the region of the recesses 65, 66 or 68 respectively (FIGS. 7 and 8) under hydrodynamic action.
  • low pressure e.g. below 10 Atm. (above atmospheric pressure)
  • the pressure in the liquid film successively increases, which pressure finally reaches a very high pressure at a film thickness d within the range of 0.005 mm to approximately 0.15 mm.
  • a counter-pressure equal to, or
  • the high specific pressure between the discs 64, 63 in the pressure zone D e.g. up to 200 kg/cm
  • the high specific pressure between the discs 64, 63 in the pressure zone D e.g. up to 200 kg/cm
  • the elastic properties e.g. of the rubber are determined also by the pressures prevailing in the liquid film.
  • the axial dimensions b and b of the discs are in no way limited to the relations indicated in the drawings, but they also can be chosen to be much larger, i.e. a multiple of the disc diameter. This choice of course depends upon the fiber arrangement to be processed. While there is shown and described present preferred embodiments of the invention, it is to be distinctly understood that the invention is not limited thereto, but may be otherwise variously embodied and practiced within the scope of the following claims.
  • An apparatus for continuously impregnating a throughpassing textile fiber arrangement with liquid comprising, in combination:
  • said cover plates being provided with openings disposed at a region of said cover plates situated opposite'the neighboring face sides of said pair of discs for supplying theimpregnatin'g liquid under pressure to said neighboring face sides of said pair of discs;
  • said pair of discs and said cover plates being arranged with respect to one another so as to form a pressure zone acting at all sides of the fiber arrangement to form such fiber arrangement into a compact fiber sliver under high specific pressure.
  • said elastically connecting means comprises aligning members rigidly mounted at one of said cover plates, the other of said cover plates being shiftably arranged on said aligning members for shiftably aligning said other cover plate, and elastic elements rigidly connected with said other cover plate for elastically urging said other cover plate towards said one cover plate.
  • the apparatus as defined in claim 1, further including liquid distribution grooves arranged at the region of said coverplates opposite the neighboring face sides of said discs and communicating with said openings for supplying the impregnating liquid.
  • said v cover plates further include converging recesses arranged at the respective surfaces thereof located opposite to the neighboring face sides of said discs and extending in an input quadrant of said fiber arrangement and in the direction of rotation of said discs, said input quadrant being defined by a quadrant of said circumferential surfaces facing the fiber arrangement entering the apparatus.
  • each said converging recess is formed by a substantially wedge surface.
  • said converging recesses are formed by a circular surface extending asymptotically with respect to saidsurface of the associated cover plate which is situated opposite to the neighboring face sides of said discs for asymptotically merging with said surface.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Textile Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Nonwoven Fabrics (AREA)
US00347351A 1970-10-12 1973-04-02 Apparatus for impregnating textile fibers Expired - Lifetime US3825974A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1507070A CH541361A (de) 1970-10-12 1970-10-12 Imprägniervorrichtung für Textilfasern

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US3825974A true US3825974A (en) 1974-07-30

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US00347351A Expired - Lifetime US3825974A (en) 1970-10-12 1973-04-02 Apparatus for impregnating textile fibers

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US (1) US3825974A (es)
JP (1) JPS5319268Y2 (es)
AR (1) AR193359A1 (es)
AT (1) AT328403B (es)
AU (1) AU464803B2 (es)
BE (1) BE773795A (es)
CA (1) CA941180A (es)
CH (1) CH541361A (es)
CS (1) CS159793B2 (es)
DE (1) DE2150858A1 (es)
ES (1) ES396201A1 (es)
FR (1) FR2110356B1 (es)
GB (1) GB1351189A (es)
NL (1) NL7113914A (es)
ZA (1) ZA716803B (es)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1982004271A1 (en) * 1981-06-03 1982-12-09 Holbek Kjeld A method for treating a fibrous material and a plant for carrying out the method

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH577570A (de) * 1973-09-13 1976-07-15 Pavena Ag Verfahren zur herstellung eines gefaerbten und stabilisierten ungedrehten faserbandes und nach dem verfahren hergestelltes faserband mit gegeneinander gebundenen fasern

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2856640A (en) * 1954-02-01 1958-10-21 Deering Milliken Res Corp Apparatus for crimping textile strands
US3545058A (en) * 1967-10-17 1970-12-08 Techniservice Corp Stuffer crimper with cooling fluid wretreatment means

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2856640A (en) * 1954-02-01 1958-10-21 Deering Milliken Res Corp Apparatus for crimping textile strands
US3545058A (en) * 1967-10-17 1970-12-08 Techniservice Corp Stuffer crimper with cooling fluid wretreatment means

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1982004271A1 (en) * 1981-06-03 1982-12-09 Holbek Kjeld A method for treating a fibrous material and a plant for carrying out the method

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Publication number Publication date
FR2110356A1 (es) 1972-06-02
AR193359A1 (es) 1973-04-23
FR2110356B1 (es) 1973-08-10
CS159793B2 (es) 1975-01-31
GB1351189A (en) 1974-04-24
JPS47202U (es) 1972-05-22
DE2150858A1 (de) 1972-04-13
JPS5319268Y2 (es) 1978-05-22
CA941180A (en) 1974-02-05
CH541361A (de) 1973-09-15
NL7113914A (es) 1972-04-14
ES396201A1 (es) 1974-04-16
AT328403B (de) 1976-03-25
ATA873071A (de) 1975-06-15
ZA716803B (en) 1972-11-29
BE773795A (fr) 1972-04-11
AU464803B2 (en) 1975-09-04
AU3449871A (en) 1973-04-19

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