US3672066A - Microwave drying apparatus - Google Patents

Microwave drying apparatus Download PDF

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US3672066A
US3672066A US85568A US3672066DA US3672066A US 3672066 A US3672066 A US 3672066A US 85568 A US85568 A US 85568A US 3672066D A US3672066D A US 3672066DA US 3672066 A US3672066 A US 3672066A
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walls
web
sheet material
drying
wall
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US85568A
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Erik W Stephansen
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Bechtel International Corp
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Bechtel International Corp
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    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/64—Heating using microwaves
    • H05B6/78—Arrangements for continuous movement of material
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
    • D06C7/00—Heating or cooling textile fabrics
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B13/00—Machines and apparatus for drying fabrics, fibres, yarns, or other materials in long lengths, with progressive movement
    • F26B13/10—Arrangements for feeding, heating or supporting materials; Controlling movement, tension or position of materials
    • F26B13/101—Supporting materials without tension, e.g. on or between foraminous belts
    • F26B13/104—Supporting materials without tension, e.g. on or between foraminous belts supported by fluid jets only; Fluid blowing arrangements for flotation dryers, e.g. coanda nozzles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B3/00—Drying solid materials or objects by processes involving the application of heat
    • F26B3/32—Drying solid materials or objects by processes involving the application of heat by development of heat within the materials or objects to be dried, e.g. by fermentation or other microbiological action
    • F26B3/34—Drying solid materials or objects by processes involving the application of heat by development of heat within the materials or objects to be dried, e.g. by fermentation or other microbiological action by using electrical effects
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B3/00—Drying solid materials or objects by processes involving the application of heat
    • F26B3/32—Drying solid materials or objects by processes involving the application of heat by development of heat within the materials or objects to be dried, e.g. by fermentation or other microbiological action
    • F26B3/34—Drying solid materials or objects by processes involving the application of heat by development of heat within the materials or objects to be dried, e.g. by fermentation or other microbiological action by using electrical effects
    • F26B3/343—Drying solid materials or objects by processes involving the application of heat by development of heat within the materials or objects to be dried, e.g. by fermentation or other microbiological action by using electrical effects in combination with convection
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
    • D06C2700/00—Finishing or decoration of textile materials, except for bleaching, dyeing, printing, mercerising, washing or fulling
    • D06C2700/09—Various apparatus for drying textiles
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2206/00—Aspects relating to heating by electric, magnetic, or electromagnetic fields covered by group H05B6/00
    • H05B2206/04—Heating using microwaves
    • H05B2206/046—Microwave drying of wood, ink, food, ceramic, sintering of ceramic, clothes, hair

Definitions

  • ABSTRACT A device for drying a continuous web or sheet of 521 u.s.c1..................anna........34/1,34/156, 34/160 material Passing 8 a drying
  • the device includes two air cushions which face each other and force the sheet of material passing through the drying zone to stay midway [51] Int.
  • the air cushions are provided R i l! e C ed by spaced slots extending at an angle to the path of travel of the sheet to ensure that streaking of a coating on the sheet is obviated.
  • a further object of the present invention is to provide air cushions so spaced and provided that wrinkling of the web or of a coating on the web is obviated.
  • FIG. 1 is a perspective view of an embodiment of the apparatus for practicing the present invention.
  • FIG. 2 is a section taken transversely through the means providing the opposite air cushions.
  • FIG. 3 is a perspective view showing the air outlet means provided at an angle to the run of the web.
  • FIG. 4 is a top plan view of one-half of the microwave drier assembly.
  • the drier comprises upper and lower sections indicated at 11 and 12. These sections are alike so a description of one will suffice.
  • the drier sections 11 and 12 are spaced apart about a quarter of an inch to minimize the tendency for dust or lint which may accumulate between the two halves to cause arcing.
  • Each drier section includes a plurality of waveguides and a plurality of gas distribution means and gas collection means.
  • each drier section includes opposite parallel end walls 13 and 14 joined together by walls 16 and 17 which provide a first duct through which the drying gas is passed for release against the web.
  • a wall 18 also extends from end wall 14 toward the opposite end wall 13 but is spaced therefrom.
  • a wall 19 extends from the end wall 13 toward the end wall 14 but is also spaced therefrom.
  • Extending from wall 14 are parallel walls 21 and 22 which extend toward end wall 13, the end of these walls being closed as at 23 and by a top plate 24 provided with a plurality of apertures 26 through which the drying gas is exhausted.
  • Angular guide plates 27 are provided at the junction of each of the aforementioned walls with an end wall to direct the flow of the microwaves through the drier.
  • a source 31 of microwave energy is provided to feed the spaced waveguides through line 32 into the waveguide provided by walls 17 and 18.
  • the generator 31 can be any-wellknown source of RF energy and in one practical embodiment of the invention the energy source consisted of a Klystron and associated power supply operating at 2,450 mI-Iz.
  • the RF generator operates at a frequency from about 300 to 30,000 mI-Iz.
  • the ISM allocated frequencies of 915; 2,450; 5,800 and 22,125 mI-Iz are suitable.
  • the microwave energy is fed into the waveguides provided sequentially, for example, by walls 17 and 18, I8 and l9, l9 and 21, 22 and 19, 19 and 18, and 18 and 16 to pass through the drying section.
  • a dummy load 34 is provided at the terminal end 33 of the waveguide to absorb excess energy and, in case of a web break, to absorb total energy input.
  • the microwave energy is introduced through a split microwave tee, one half being on the upper section 11 and the other half being on the lower section 12.
  • the usual microwave tuning devices are included and since these are well known they are neither described nor shown.
  • an air distribution device in conjunction with and between walls 16 and 17 (FIGS. 2 and 3) an air distribution device, generally indicated at 36, which includes a base 37 having an upstanding flange 38 provided centrally thereof and providing a support for a cover 39 which fits in spaced relation between walls 16 and 17 and in the plane of the upper ends of the walls and fitting close to the edges of the walls so that air can escape between the cover and the walls, as is shown in FIG. 2, and through slots 41 provided in the cover 39.
  • the air release occurs on opposite sides of the sheet and under conditions such that the forces applied by the opposite air streams to the sheet are opposite and equal.
  • the slots 41 are at an angle to the run of walls 16 and 17 so that the air is released angularly across the sheet. This prevents streaking of any coating which may have been applied to the sheet. If the web is not coated or if streaking is not objectionable, the slots can extend parallel to the run of the sheet.
  • the air is supplied by a fan 46 through a manifold 47 connected by line 48 to each of the air inlets. If desired, the air may be heated and filtered. The air is exhausted through outlets 49.
  • the apparatus including at opposite edges of the moving web and in spaced relation thereto opposite first and second end walls extending parallel to said direction, a top wall and a bottom wall extending between said end walls generally parallel to the plane of the web of sheet material and on opposite sides thereof, a third and a fourth wall extending from each said top and bottom wall toward said web of sheet material and between said end walls to provide a gas duct, means for supplying gas to said duct for discharging gas against said web, a fifth wall extending from said first end wall toward the second end wall and spaced therefrom to provide a waveguide, a sixth and a seventh wall extending from the first end wall toward the second end wall to provide a gas exhaust duct and an extension of the waveguide, and means for feeding microwave energy into said wave guide.
  • an eighth wall extending from the second end wall toward and spaced from the first end wall between the fifth and sixth walls to continue the waveguide with the fifth wall.
  • gas distribution means comprising slot means is in said gas discharge duct between said third and fourth walls to evenly distribute gas against said web.
  • said gas distribution means comprises an upstanding flange extending longitudinally in equally spaced relationship between said third and fourth walls, a cover supported on said flange in spaced relation between the third and fourth walls and in the plane of the upper ends of the third and fourth walls to define longitudinally extending slots between the opposite edges of the cover and the adjacent edges of the upper ends of the third and fourth walls, a plurality of slots in said cover disposed at an angle to the direction of 5 movement of said web and at an angle to the third and fourth walls so that gas is released angularly across the web of sheet

Abstract

A device is provided for drying a continuous web or sheet of material passing through a drying zone. The device includes two air cushions which face each other and force the sheet of material passing through the drying zone to stay midway between opposite microwave drying units. Further, to prevent wrinkling of the sheet material, the air cushions are provided by spaced slots extending at an angle to the path of travel of the sheet to ensure that streaking of a coating on the sheet is obviated.

Description

[4 1 June 27, 1972 United States Patent Stephansen [54] MICROWAVEDRYING APPARATUS 3,324,570 6/1967 Flaithetal,..............................34/l$6 [72] Inventor: Erik,stephammpostercimcam 3,181,250 5/1965 Vits......................................34/l56X Bechtel International Corporation Primary Examiner-Carroll B. Dority, Jr. Attorney-Eckhoff and l-loppe [73] Assignee:
[22] Filed:
[21] Appl. No.: 85,568 ABSTRACT A device is provided for drying a continuous web or sheet of 521 u.s.c1..........................................34/1,34/156, 34/160 material Passing 8 a drying The device includes two air cushions which face each other and force the sheet of material passing through the drying zone to stay midway [51] Int.
5s Fieldorsemi..........................................
/ between opposite microwave drying units. Further, to prevent wrinkling of the sheet material, the air cushions are provided R i l! e C ed by spaced slots extending at an angle to the path of travel of the sheet to ensure that streaking of a coating on the sheet is obviated.
UNITED STATES PATENTS 3,491,457 1/1970 Schrelber et a1 .34/1 3,449,836 6/1969 Schreiber et 6 Claims, 4 Drawing Figures PATENTEDJURZY 1912 saw 1 INVENTOR.
ATTORNEYS PATENTEDJunN 12m sum 2 or 2 DUMMY LOAD BYEIZIK W. 5 73mm iawnfi 4; 1%
GENEKATOR ATTORNEYS MICROWAVE DRYING APPARATUS BACKGROUND OF THE INVENTION The simultaneous application of a gas to a sheet of material undergoing drying by microwave energy is known and one can refer to prior US. Pat. Nos. 3,449,836, 3,475,827 and 3,491,457. In these and other prior art devices, however, the gas impingement was such that gas was not effective to maintain the web spaced equally between the opposite waveguides providing the microwave energy application.
SUMMARY OF THE INVENTION It is in general the broad object of the present invention to provide an improved drier for a continuous web of material by microwave energy in which opposite and equal air cushions are provided on opposite sides of the web to hold the web in a centralized position as it passes through the opposite waveguides of the microwave drier.
A further object of the present invention is to provide air cushions so spaced and provided that wrinkling of the web or of a coating on the web is obviated.
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of an embodiment of the apparatus for practicing the present invention.
FIG. 2 is a section taken transversely through the means providing the opposite air cushions.
FIG. 3 is a perspective view showing the air outlet means provided at an angle to the run of the web.
FIG. 4 is a top plan view of one-half of the microwave drier assembly.
DESCRIPTION OF THE PREFERRED EMBODIMENT In the description which follows, it is assumed that a coated or a partially dry web is being dried by the combined action of microwave energy and jets of a drying gas such as air, nitrogen or superheated steam applied to a web of the sheet material indicated at 10. The web is drawn through the drier by means well known to those skilled in the art and therefore is not illustrated. The movement of the web can be in the direction indicated by the arrow or in the opposite direction.
The drier comprises upper and lower sections indicated at 11 and 12. These sections are alike so a description of one will suffice. The drier sections 11 and 12 are spaced apart about a quarter of an inch to minimize the tendency for dust or lint which may accumulate between the two halves to cause arcing. Each drier section includes a plurality of waveguides and a plurality of gas distribution means and gas collection means. Basically, each drier section includes opposite parallel end walls 13 and 14 joined together by walls 16 and 17 which provide a first duct through which the drying gas is passed for release against the web. A wall 18 also extends from end wall 14 toward the opposite end wall 13 but is spaced therefrom. A wall 19 extends from the end wall 13 toward the end wall 14 but is also spaced therefrom. Extending from wall 14 are parallel walls 21 and 22 which extend toward end wall 13, the end of these walls being closed as at 23 and by a top plate 24 provided with a plurality of apertures 26 through which the drying gas is exhausted. Angular guide plates 27 are provided at the junction of each of the aforementioned walls with an end wall to direct the flow of the microwaves through the drier.
A source 31 of microwave energy is provided to feed the spaced waveguides through line 32 into the waveguide provided by walls 17 and 18. The generator 31 can be any-wellknown source of RF energy and in one practical embodiment of the invention the energy source consisted of a Klystron and associated power supply operating at 2,450 mI-Iz. Suitably the RF generator operates at a frequency from about 300 to 30,000 mI-Iz. Thus the ISM allocated frequencies of 915; 2,450; 5,800 and 22,125 mI-Iz are suitable.
The microwave energy is fed into the waveguides provided sequentially, for example, by walls 17 and 18, I8 and l9, l9 and 21, 22 and 19, 19 and 18, and 18 and 16 to pass through the drying section. At the terminal end 33 of the waveguide a dummy load 34 is provided to absorb excess energy and, in case of a web break, to absorb total energy input. The microwave energy is introduced through a split microwave tee, one half being on the upper section 11 and the other half being on the lower section 12. The usual microwave tuning devices are included and since these are well known they are neither described nor shown.
In accordance with the present invention, there is provided in conjunction with and between walls 16 and 17 (FIGS. 2 and 3) an air distribution device, generally indicated at 36, which includes a base 37 having an upstanding flange 38 provided centrally thereof and providing a support for a cover 39 which fits in spaced relation between walls 16 and 17 and in the plane of the upper ends of the walls and fitting close to the edges of the walls so that air can escape between the cover and the walls, as is shown in FIG. 2, and through slots 41 provided in the cover 39.
As appears in FIG. 2, the air release occurs on opposite sides of the sheet and under conditions such that the forces applied by the opposite air streams to the sheet are opposite and equal. Further and in accordance with the preferred embodiment, the slots 41 are at an angle to the run of walls 16 and 17 so that the air is released angularly across the sheet. This prevents streaking of any coating which may have been applied to the sheet. If the web is not coated or if streaking is not objectionable, the slots can extend parallel to the run of the sheet. The air is supplied by a fan 46 through a manifold 47 connected by line 48 to each of the air inlets. If desired, the air may be heated and filtered. The air is exhausted through outlets 49.
I claim:
1. In an apparatus for drying a moving web of a sheet material moving in one direction through the apparatus, the apparatus including at opposite edges of the moving web and in spaced relation thereto opposite first and second end walls extending parallel to said direction, a top wall and a bottom wall extending between said end walls generally parallel to the plane of the web of sheet material and on opposite sides thereof, a third and a fourth wall extending from each said top and bottom wall toward said web of sheet material and between said end walls to provide a gas duct, means for supplying gas to said duct for discharging gas against said web, a fifth wall extending from said first end wall toward the second end wall and spaced therefrom to provide a waveguide, a sixth and a seventh wall extending from the first end wall toward the second end wall to provide a gas exhaust duct and an extension of the waveguide, and means for feeding microwave energy into said wave guide.
2. In an apparatus for drying a moving web of sheet material as in claim 1, an eighth wall extending from the second end wall toward and spaced from the first end wall between the fifth and sixth walls to continue the waveguide with the fifth wall.
3. In an apparatus for drying a moving web of sheet material as in claim 2, wherein said sixth and seventh walls are spaced from the second end wall and are closed at their ends adjacent the second end wall, a top plate covering the sixth and seventh walls and having a plurality of apertures therein through which the gas is exhausted, said sixth wall defining a continuation of the waveguide with the eighth wall.
4. In an apparatus for drying a moving web of sheet material as in claim 3, wherein gas distribution means comprising slot means is in said gas discharge duct between said third and fourth walls to evenly distribute gas against said web.
5. In an apparatus for drying a moving web of sheet material as in claim 4, wherein said gas distribution means comprises an upstanding flange extending longitudinally in equally spaced relationship between said third and fourth walls, a cover supported on said flange in spaced relation between the third and fourth walls and in the plane of the upper ends of the third and fourth walls to define longitudinally extending slots between the opposite edges of the cover and the adjacent edges of the upper ends of the third and fourth walls, a plurality of slots in said cover disposed at an angle to the direction of 5 movement of said web and at an angle to the third and fourth walls so that gas is released angularly across the web of sheet

Claims (6)

1. In an apparatus for drying a moving web of a sheet material moving in one direction through the apparatus, the apparatus including at opposite edges of the moving web and in spaced relation thereto opposite first and second end walls extending parallel to said direction, a top wall and a bottom wall extending between said end walls generally parallel to the plane of the web of sheet material and on opposite sides thereof, a third and a fourth wall extending from each said top and bottom wall toward said web of sheet material and between said end walls to provide a gas duct, means for supplying gas to said duct for discharging gas against said web, a fifth wall extending from said first end wall toward the second end wall and spaced therefrom to provide a waveguide, a sixth and a seventh wall extending from the first end wall toward the second end wall to provide a gas exhaust duct and an extension of the waveguide, and means for feeding microwave energy into said wave guide.
2. In an apparatus for drying a moving web of sheet material as in claim 1, an eighth wall extending from the second end wall toward and spaced from the first end wall between the fifth and sixth walls to continue the waveguide with the fifth wall.
3. In an apparatus for drying a moving web of sheet material As in claim 2, wherein said sixth and seventh walls are spaced from the second end wall and are closed at their ends adjacent the second end wall, a top plate covering the sixth and seventh walls and having a plurality of apertures therein through which the gas is exhausted, said sixth wall defining a continuation of the waveguide with the eighth wall.
4. In an apparatus for drying a moving web of sheet material as in claim 3, wherein gas distribution means comprising slot means is in said gas discharge duct between said third and fourth walls to evenly distribute gas against said web.
5. In an apparatus for drying a moving web of sheet material as in claim 4, wherein said gas distribution means comprises an upstanding flange extending longitudinally in equally spaced relationship between said third and fourth walls, a cover supported on said flange in spaced relation between the third and fourth walls and in the plane of the upper ends of the third and fourth walls to define longitudinally extending slots between the opposite edges of the cover and the adjacent edges of the upper ends of the third and fourth walls, a plurality of slots in said cover disposed at an angle to the direction of movement of said web and at an angle to the third and fourth walls so that gas is released angularly across the web of sheet material to prevent streaking or wrinkling of said web of sheet material as it is moved through said drying apparatus.
6. In an apparatus for drying a moving web of sheet material as in claim 5, wherein a plurality of gas discharge ducts, waveguides and exhaust ducts are alternately arranged in said drying apparatus.
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Cited By (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3771235A (en) * 1970-12-29 1973-11-13 Fuji Photo Film Co Ltd Method for floating and drying a web
US3771239A (en) * 1970-12-30 1973-11-13 Fuji Photo Film Co Ltd Apparatus for drying a web by use of an air jet flow
US3800438A (en) * 1970-11-19 1974-04-02 Artos Ind Forsch Apparatus for treatment of materials, particularly the heat treatment of webs
US3979038A (en) * 1974-05-29 1976-09-07 Aktiebolaget Svenska Flaktfabriken Arrangement at transport of web or sheet material
FR2473954A1 (en) * 1980-01-22 1981-07-24 Placoplatre Sa PROCESS AND DEVICE FOR ACCELERATING THE ADHESIVE TAKING OF A COMPOSITE MATERIAL COMPRISING AT LEAST TWO LAMELLAR LAYERS GLUED TO BOTH
EP0071123A1 (en) * 1981-07-31 1983-02-09 Agfa-Gevaert AG Microwave device for warming and/or drying flat materials passing through the device
US4629847A (en) * 1985-11-07 1986-12-16 Gics Paul W Resonator device for a microwave heat applicator
US4901449A (en) * 1988-06-07 1990-02-20 W. R. Grace & Co.-Conn. Tri-flotation air bar
US5150955A (en) * 1990-12-28 1992-09-29 Eastman Kodak Company Drying apparatus
US5181329A (en) * 1990-12-28 1993-01-26 Eastman Kodak Company Drying apparatus
US5278375A (en) * 1990-03-07 1994-01-11 Microondes Energie Systemes Microwave applicator device for the treatment of sheet or lap products
US5410283A (en) * 1993-11-30 1995-04-25 Xerox Corporation Phase shifter for fine tuning a microwave applicator
US5422463A (en) * 1993-11-30 1995-06-06 Xerox Corporation Dummy load for a microwave dryer
US5423260A (en) * 1993-09-22 1995-06-13 Rockwell International Corporation Device for heating a printed web for a printing press
US5631685A (en) * 1993-11-30 1997-05-20 Xerox Corporation Apparatus and method for drying ink deposited by ink jet printing
EP0864518A1 (en) * 1997-03-12 1998-09-16 Ingenieurgemeinschaft WSP Prof. Dr.-Ing. C.Kramer Prof. H.J. Gerhardt, M.Sc. Bed of air cushion nozzles to guide webs in a floating manner
US6207941B1 (en) * 1998-07-16 2001-03-27 The University Of Texas System Method and apparatus for rapid drying of coated materials with close capture of vapors
US6444964B1 (en) * 2000-05-25 2002-09-03 Encad, Inc. Microwave applicator for drying sheet material
US6901683B2 (en) 2002-02-15 2005-06-07 International Business Machines Corporation Method and apparatus for electromagnetic drying of printed media
US20070125876A1 (en) * 2005-07-28 2007-06-07 Ralf Bolling Nozzle system for the treatment of web-shaped material
US20080063806A1 (en) * 2006-09-08 2008-03-13 Kimberly-Clark Worldwide, Inc. Processes for curing a polymeric coating composition using microwave irradiation
US20080155764A1 (en) * 2006-12-28 2008-07-03 Kimberly-Clark Worldwide, Inc. Process for dyeing a textile web
US20080157442A1 (en) * 2006-12-28 2008-07-03 Kimberly-Clark Worldwide, Inc. Process For Cutting Textile Webs With Improved Microwave Absorbing Compositions
US20080156428A1 (en) * 2006-12-28 2008-07-03 Kimberly-Clark Worldwide, Inc. Process For Bonding Substrates With Improved Microwave Absorbing Compositions
US20080155765A1 (en) * 2006-12-28 2008-07-03 Kimberly-Clark Worldwide, Inc. Process for dyeing a textile web
US20080155766A1 (en) * 2006-12-28 2008-07-03 Kimberly-Clark Worldwide, Inc. Process for dyeing a textile web
US20080156427A1 (en) * 2006-12-28 2008-07-03 Kimberly-Clark Worldwide, Inc. Process For Bonding Substrates With Improved Microwave Absorbing Compositions
US20090165223A1 (en) * 2007-12-27 2009-07-02 Kimberly-Clark Worldwide, Inc. Process for applying one or more treatment agents to a textile web
US7568251B2 (en) 2006-12-28 2009-08-04 Kimberly-Clark Worldwide, Inc. Process for dyeing a textile web
US20110192048A1 (en) * 2008-07-08 2011-08-11 Kaindl Decor Gmbh Method and Device for Drying and Precondensing Impregnation Products which are Constituted of a Resin-Bonded Film-Type Web Material; Melamine-Free Impregnation Product

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US3181250A (en) * 1960-10-01 1965-05-04 Vits G M B H Maschf Apparatus and method of drying web material by directing hollow gas jet streams against opposite faces of the web
US3324570A (en) * 1965-02-25 1967-06-13 Proctor And Schwartz Inc Float dryer
US3449836A (en) * 1967-10-25 1969-06-17 Bechtel Int Corp Air suspension system in microwave drying
US3491457A (en) * 1967-10-10 1970-01-27 Bechtel Int Corp Microwave drying method and apparatus

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Publication number Priority date Publication date Assignee Title
US3181250A (en) * 1960-10-01 1965-05-04 Vits G M B H Maschf Apparatus and method of drying web material by directing hollow gas jet streams against opposite faces of the web
US3324570A (en) * 1965-02-25 1967-06-13 Proctor And Schwartz Inc Float dryer
US3491457A (en) * 1967-10-10 1970-01-27 Bechtel Int Corp Microwave drying method and apparatus
US3449836A (en) * 1967-10-25 1969-06-17 Bechtel Int Corp Air suspension system in microwave drying

Cited By (37)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3800438A (en) * 1970-11-19 1974-04-02 Artos Ind Forsch Apparatus for treatment of materials, particularly the heat treatment of webs
US3771235A (en) * 1970-12-29 1973-11-13 Fuji Photo Film Co Ltd Method for floating and drying a web
US3771239A (en) * 1970-12-30 1973-11-13 Fuji Photo Film Co Ltd Apparatus for drying a web by use of an air jet flow
US3979038A (en) * 1974-05-29 1976-09-07 Aktiebolaget Svenska Flaktfabriken Arrangement at transport of web or sheet material
FR2473954A1 (en) * 1980-01-22 1981-07-24 Placoplatre Sa PROCESS AND DEVICE FOR ACCELERATING THE ADHESIVE TAKING OF A COMPOSITE MATERIAL COMPRISING AT LEAST TWO LAMELLAR LAYERS GLUED TO BOTH
EP0071123A1 (en) * 1981-07-31 1983-02-09 Agfa-Gevaert AG Microwave device for warming and/or drying flat materials passing through the device
US4629847A (en) * 1985-11-07 1986-12-16 Gics Paul W Resonator device for a microwave heat applicator
US4901449A (en) * 1988-06-07 1990-02-20 W. R. Grace & Co.-Conn. Tri-flotation air bar
US5278375A (en) * 1990-03-07 1994-01-11 Microondes Energie Systemes Microwave applicator device for the treatment of sheet or lap products
US5150955A (en) * 1990-12-28 1992-09-29 Eastman Kodak Company Drying apparatus
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