Connect public, paid and private patent data with Google Patents Public Datasets

Coating apparatus and method

Download PDF

Info

Publication number
US3496012A
US3496012A US3496012DA US3496012A US 3496012 A US3496012 A US 3496012A US 3496012D A US3496012D A US 3496012DA US 3496012 A US3496012 A US 3496012A
Authority
US
Grant status
Grant
Patent type
Prior art keywords
coating
fluid
web
member
apparatus
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
Inventor
Elwin J Biorseth
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mead Corp
Original Assignee
Mead Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Grant date

Links

Images

Classifications

    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21HPULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H23/00Processes or apparatus for adding material to the pulp or to the paper
    • D21H23/02Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
    • D21H23/22Addition to the formed paper
    • D21H23/32Addition to the formed paper by contacting paper with an excess of material, e.g. from a reservoir or in a manner necessitating removal of applied excess material from the paper
    • D21H23/40Addition to the formed paper by contacting paper with an excess of material, e.g. from a reservoir or in a manner necessitating removal of applied excess material from the paper only one side of the paper being in contact with the material
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06BTREATING TEXTILE MATERIALS BY LIQUIDS, GASES OR VAPOURS
    • D06B1/00Applying liquids, gases or vapours on to textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating
    • D06B1/08Applying liquids, gases or vapours on to textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating from outlets being in, or almost in, contact with the textile material
    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21HPULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H5/00Special paper or cardboard not otherwise provided for
    • D21H5/0005Processes or apparatus specially adapted for applying liquids or other fluent materials to finished paper or board, e.g. impregnating, coating
    • D21H5/0012Processes or apparatus specially adapted for applying liquids or other fluent materials to finished paper or board, e.g. impregnating, coating by bringing paper into contact with an excess of fluids, the paper carrying away only a part of the fluid material, e.g. by passing through liquids, gases or vapours
    • D21H5/0015Processes or apparatus specially adapted for applying liquids or other fluent materials to finished paper or board, e.g. impregnating, coating by bringing paper into contact with an excess of fluids, the paper carrying away only a part of the fluid material, e.g. by passing through liquids, gases or vapours only one side of the paper being in contact with the treating medium, e.g. paper carried by support

Description

Feb. 17, 1970 E. BIORSETH 3,496,012

COATING APPARATUS AND METHOD Filed Feb. 13, 19s? 3 Sheets-Sheet 1 FIG. I.

INVENTOR ELWIN J. BIORSETH Feb. 17, 1970 BDRSETH 3,496,012

COATING APPARATUS AND METHOD Filed Feb. 13, 1967 3 Sheets-Sheet 2 QINVVENTOR ELWIN .1. BIIORSETH AGENT W E J. BIORSETH Feb. 17, 1970 COATING APPARATUS AND METHOD 3 Sheets-Sheet 5 Filed Feb. 13, 1967 FIG. 5.

INVENTOR ELWIN J. BIORSETH AGENT United States Patent US. Cl. 117111 Claims ABSTRACT OF THE DISCLOSURE An apparatus and method for coating moving webs consisting of a stationary tubular member and a longitudinal fluid-metering means positioned adjacent thereto is disclosed. The tubular member is provided with apertures for the admission and discharge of coating fluid into a cavity formed by the tubular member and the metering device. In use a moving web is drawn over the tubular member so as to completely enclose the cavity. Coating fluid is fed through the admission apertures and completely fills the cavity, thus preventing exposure of the coating fluid to the atmosphere. Return of excess coating may be controlled by adjusting the angle by which the advancing web wraps the tubular member.

FIELD OF THE INVENTION This invention relates to apparatus and method for coating moving webs wherein fluid coating material is applied in excess; the excess material being distributed across the web and then removed from the coated surface. It relates further to coating apparatus wherein the coating material is maintained in an enclosed environment during the coating process.

PRIOR ART Any coating apparatus must perform the functions of application, distribution, and metering. Each of these functions presents special problems. Inventors in this field have generally devoted their attention toward the individual solution of those problems. As a result the present art includes numerous knives, airknives, blades, aprons, and bars for accurately metering the surface flow of a coating fluid which has previously been applied and distributed. Application devices include pans, rolls, sprayers, and extruders. Distribution is performed in many Ways, often in combination with the application or meterings steps. In general, machines which perform all three functions well are large, complex, and expensive combinations of well known components. In the usual case these machines are limited, in practical application, to a narrow class of coating materials.

In addition to the above limitations, existing apparatus are generally unsatisfactory for handling hot melts or other fast setting coatings. This is caused either by early exposure to the air, or by inadequate means to remove excess coating material from the application and metering area. Evaporation, coagulation, and build-up are typical results. Also it is not uncommon for excessive aeration to lead to frothing of aqueous type coatings. When hot melts are handled it is usually necessary to apply heat to numerous parts of the coating apparatus as well as to the coating fluid itself.

SUMMARY OF THE INVENTION My invention is a coating method and a compact, mechanically simple, and inexpensive coating apparatus adapted to apply, distribute, and meter coating fluid in a single combined operation without exposure to the air and with provision for removal of excess coating material from the coating area. The apparatus has as its main structure a large tubular member over which is drawn the uncoated web. This tubular member remains stationary dullng the coating operation. My apparatus includes also a longitudinal fluid-metering means positioned adjacent and parallel to the main tubular member; the intersection of the parallel members forming a longitudinal fluid holdmg cavity. The main tubular member is provided with one or more fluid admission apertures and one or more fluid discharge apertures. The admission apertures are so located as to provide a continuous supply of coating to the fluid holding cavity. The discharge apertures are so located as to be enclosed by the web in its approach to the fluid holding cavity. When the web is drawn over the tubular member it completely encloses a supply of coating fluid which has been forced through the admission apertures and into the fluid-holding cavity. Hydrostatic pressure forces excess coating fluid out through the discharge apertures. This arrangement of web and coating structure serves to isolate the coating fluid from the atmosphere. Furthermore, when the web is rapidly drawn across the relatively small coating region, the duration of the actual coating operation, or coating dwell time, is much reduced over conventional coating methods.

It is readily apparent to one skilled in the art that my invention may be used with a large variety of webs and coatings without the disadvantages which have been pointed out for prior apparatus. In particular coagulation, drying out, loss of solvent, build up of excess coating material, frothing, and contamination from air borne dirt are substantially entirely eliminated. Metering can be accurately controlled with a minimum of surface tension ridges in the completed coating. No local heating is required for application of hot melts. Furthermore, when hot melts are applied the reduced coating dwell time facilitates application at temperatures near the fluid congealing point, thus improving coating holdout. When water base coatings are applied, the reduced dwell time decreases soak-up of water into the web, thus eliminating the local viscosity increase which commonly causes defects such as film split marks in coatings applied at higher solids content. For application of solvent base coatings, such as overprints for printed webs, the shortened coating dwell time makes it possible to apply overprints that would normally dissolve the inks. Also, isolating the solvent base coating from the air reduces fire hazards.

Further advantages of the apparatus are simplicity and low cost of construction. Except for the metering means which, in the preferred embodiment, is a rotating wire wound rod, no moving parts are used. The main structure may be fabricated from pipe and flat metal plates.

Accordingly it is a principal object of my invention to provide a simple, compact coating apparatus for use with a wide variety of coatings, particularly those which are fast setting in nature.

Another object of my invention is to provide a method of coating a moving web wherein the coating dwell time is very short in duration and wherein the coating material is isolated from the atmosphere before and during the coating operation.

Another object of my invention is to provide a stationary coating apparatus capable of applying an excess of coating fluid to a moving web and removing the excess through surface apertures.

Another object of my invention is to provide a coating apparatus adapted to apply, distribute, and meter coating fluid to a moving web with no exposure of the coating material to the atmosphere until after completion of the metreing.

Other and further objects will be apparent from the description which follows.

3 BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a diagrammatic drawing of a typical machine embodying my invention. For simplicity of illustration, the end plates which support the metering bar and prevent fluid seepage about the web edges have been omitted.

FIG. 2 is an enlarged sectional elevation drawing of the coating area for a machine using my invention in the form shown in FIG. 1.

FIG. 3 is an enlarged sectional elevation drawing of the coating area for a machine using my invention in a different form.

FIG. 4 is a sectional drawing of my coating apparatus in the preferred embodiment.

FIG. 5 is a sectional drawing of an alternate configuration of my coating apparatus.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to FIG. 1, a web of material is being pulled across a tubular member 11 which is supported by stand 18. The tubular member 11 may have any desired cross section, but, for manufacturing reasons, a circular cross-section is most desirable. Stand 18 rigidly supports member 11 so as to prevent any tendency to rotate with the moving web. A metering means, in this case a wire wound rotating bar 12, is placed in a small groove which has been milled into member 11. The crest of bar 12 rises above the surface of member 11 so that when web 10 is wrapped around the combined structure there is formed an enclosed pocket 15 which is best illustrated in FIGURE 2. Referring still to FIG- URE 1, the numeral 13 represents any of a series of small apertures which have been drilled into the surface of member 11. Apertures 13 provide a passageway for coating fluid which is most desirably pumped into line 16 filling a supply cavity within member 11 and thence out through apertures 13 into the pocket 15. A series of discharge apertures 14 provide passages through which excess coating fluid flows into the interior of member 11 and thence out through line 19 to a recirculation system which is not illustrated. A motor 17 rotates bar 12 in a direction either following or opposing the movement of web 10. The machine shown in FIG. 1 would ordinarily be provided with end plates to reduce seepage of coating fluid around the edges of the web, but for purposes of clarity they are omitted from the illustration.

FIGURE 2 illustrates in better detail the coating function itself. The rotating wire wound bar is completely wetted by coating fluid, but its rotation prevents the coating from running down the back side of member 11. I have found that the metering function is best performed when the wire wound bar is rotated at speeds between 20 and 40 r.p.m. A particularly novel feature of this :onfiguration is the location of the discharge apertures under the web in its approach path to the pocket 15. The web controls the return of excess fluid by restricting flow to the discharge apertures. Coating fluid should be supplied to the admission apertures at a pressure great enough to maintain a full coating pocket as well as a steady excess flow. However, this pressure must not be so great as to cause seepage of fluid around the edges of the web. Pressure relief may be achieved by throttling the supply, opening drain 27, or in many other obvious ways. Adjustments in internal fluid pressure may also be accomplished by altering the angle by which the web wraps member 11; particularly the wrap forward of discharge apertures 14 as designated in FIG. 2 by the angle on. I have found that a magnitude of about 60 degrees is most ideal for 0:. This wrap assures good contact, aids in preventing the formation of wrinkles, and seals the pocket [5. I have used this arrangement quite successfully in the :oating of hot melts.

FIGURE 3 illustrates the coating function for an alternate configuration. The various elements are numbered to correspond with similar elements in FIG. 2. The illustrated apparatus differs from that of FIGURE 2 in that the arrangement of the surface apertures has been changed and the rotating metering bar has been replaced by a knife. However the basic principle of the invention is present in both configurations. It will be apparent to one skilled in the art that many other variations may be employed. I do not intend to limit the scope of my invention by illustrating only 2 of the many possible configurations of the numbered elements. Furthermore, the use of the top of member 11 rather than the bottom or a side is not significant. My invention may be practiced in any desired vertical orientation.

The preferred structural arrangement is shown in detail in FIG. 4. Tubular member 11 has been cut away in sectioning fashion to expose a supply cavity 20 which has been formed by fastening plate 22 into member 11 with bolts 25. Coating fluid is forced into cavity 20- through an end plate aperture which is not illustrated but which is represented generally by 23. The coating fluid is forced through aperture 13 into pocket 15 where it is distributed and metered as previously described. The excess coating is forced down aperture 14 into discharge cavity 21 which is also formed in member 11 by plate 22. The excess coating continues out of cavity 21 through aperture 24 and thence into the recirculation system. For coating fluids which may be adversely affected by the drop through cavity 21, it might be desirable to install baflles or to maintain cavity 21 in a completely filled condition. A drain plug 27 is provided at the bottom of supply cavity 20. A guide roll 29 is mounted on an adjustable arm 34 to alter the wrap angle as above stated. Additional features which are illustrated in FIGURE 4 are a far end plate (near plate cut away) and a blade 26 for holding the web down in firm contact with the coating apparatus. Blade 26 is required in only a relatively few types of coating operations but it is shown for completeness of illustration. The tubular member 11 with its internal cavities and supply lines along with apertures 13 and 14 and the metering means 12 hereafter will be referred to as the coating head.

An alternate internal structure is illustrated in FIG. 5. Here the admission apertures 13 are replaced by a longitudinal slot (also denoted by 13 because of identity of function) which extends the entire length of member 11. A longitudinal weakening groove 32 also extends the entire length of member 11. A set of bolts 30' are fitted through openings in the wall of member 11 and threaded into plate 22. Washers 33 provide working surfaces between the wall of member 11 and the heads of bolts 30'. When bolts 30 are tightened down, the wall of member 11 is deflected longitudinally about the weakening groove 32 thus closing slot 13. In this manner the flow of coating fluid into pocket 15 may be accurately adjusted. Springs 31 may be provided if necessary for the reverse operation.

The process which is inherent in the invention is not specifically illustrated in any single figure but is generally shown in all figures. It consists of wrapping a web over a tubular structure adapted to form an enclosed cavity between the web and the said tubular structure. Coating fluid is continually forced into the said cavity and metered by drawing or pulling the web across a metering device forming part of the back wall of the cavity. Excess coating is continually removed from the cavity; the entire operation being carried out in such a manner as to prevent exposure of the coating fluid to the atmosphere.

I have successfully carried out the above process using apparatus as suggested by FIG. 1. Rolls of 33#/M.s.f. corrugating medium were coated at coat weights of approximately 10# /M.s.f. uniformly across the entire width of a 73% inch web at speeds up to 200 ft. per min. I used a commercial wax having a congealing temperature near F. and applied it at temperatures of to F. A 4 inch diameter rod wound with 0.024

inch diameter wire was used for metering and was rotated at 35 rpm. in the direction of web travel. The melted wax was pumped in through V inch diameter holes and removed through slots A inch wide. Wax flow to the coating head was controlled by throttling the supply valve. All excess molten wax supplied to the coating head readily flowed into the return slots and was carried back into the supply tank by means of a trough located under the entire length of the coating head. I found that it was necessary to continually circulate the hot wax through the coating head, when the unit was not being used, to prevent the wax from freezing in the lines and coating head.

What I claim as my invention is:

1. An apparatus for coating an unstable fluid upon a continuously moving web comprising a stationary, tubular, web-supporting member provided at its surface with at least one fluid admission aperture and at least one fluid discharge aperture, and a fluid metering means oriented with its axis parallel to the axis of said web-supporting member; said web-supporting member and said fluid metering means by the juncture of their surfaces defining a longitudinal fluid-holding cavity, and said apertures for fluid admission and fluid discharge each providing non exposed passage between the longitudinal fluid holding cavity and the interior of the web-supporting member.

2. A coating apparatus according to claim 1, said discharge apertures being arranged substantially along a first longitudinal line and said admission apertures being arranged substantially along a second longitudinal line, said second longitudinal line being located on the surface of said web-supporting member between said first longitudinal line and said metering means.

3. A coating apparatus according to claim 2, the surface of said tubular member being shaped in the form of a continuously curved arch in the area between said longitudinal lines, and the placement of said first longitudinal line being sufficiently remote from said metering means that a plane extending between said first longitudinal line and the crest of the metering means will intersect the surface of said tubular member; the line of intersection being situated between the metering means and said first longitudinal line.

4. A coating apparatus according to claim 3, said metering means comprising a rotatable bar.

5. A coating apparatus according to claim 4 and further comprising a backing means for holding said web firmly against said rotatable bar.

6. A coating apparatus according to claim 4 and further comprising a guide roll for adjusting the wrap angle of said web.

7. A coating apparatus according to claim 1 said at least one fluid admission aperture being a longitudinal slot running the full length of said tubular member and said coating apparatus further comprising means for defleeting the wall of said tubular member thereby to alter the width of said slot and adjust the rate of coating fluid movement therethrough.

8. A method of coating an unstable fluid upon a moving web comprising the steps of:

creating an enclosed pocket by wrapping said web around a stationary tubular member having a longitudinal surface cavity and discharge means communicating with said cavity, introducing coating fluid into said pocket under pressure and at a rate in excess of that required for application to the web, whereby said pocket is maintained completely full at all times with said excess being continually expelled via said discharge means, and

pulling said web across said longitudinal surface cavity and against the rear wall thereof, thereby metering and distributing non-expelled coating material onto the surface of said Web.

9. A coating method according to claim 8 and further comprising the steps of continually recirculating said coating fluid from said discharge means to said surface cavity.

10. A coating method according to claim 9, said coating fluid being thermally unstable and said method further comprising the step of preheating the coating fluid to a temperature near but above the fluid congealing point thereby promoting rapid post-application congealing for improvement of coating holdout.

' References Cited UNITED STATES PATENTS 1,983,982 12/1934 Knallenberg 118414 X 2,464,771 3/1949 Van Guelpen 118413 X 2,765,769 10/1956 Schroeder 118411 3,413,143 11/1968 Cameron et al 117--120 ALFRED L. LEAVITT, Primary Examiner C. R. WILSON, Assistant Examiner U.S. Cl. X.R.

US3496012A 1967-02-13 1967-02-13 Coating apparatus and method Expired - Lifetime US3496012A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US61545567 true 1967-02-13 1967-02-13

Publications (1)

Publication Number Publication Date
US3496012A true US3496012A (en) 1970-02-17

Family

ID=24465437

Family Applications (1)

Application Number Title Priority Date Filing Date
US3496012A Expired - Lifetime US3496012A (en) 1967-02-13 1967-02-13 Coating apparatus and method

Country Status (7)

Country Link
US (1) US3496012A (en)
BE (1) BE708430A (en)
DE (1) DE1652402C3 (en)
DK (1) DK121343B (en)
ES (1) ES345958A1 (en)
FR (1) FR1548045A (en)
GB (1) GB1190324A (en)

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3642515A (en) * 1967-08-24 1972-02-15 Xerox Corp Liquid development utilizing a curvilinear development electrode
US3935338A (en) * 1973-04-23 1976-01-27 Shell Oil Company Process for the preparation of pressure-sensitive adhesive articles
US3941902A (en) * 1973-03-02 1976-03-02 Svenska Cellulosa Aktiebolaget Method of making surface-treated paper
US4025671A (en) * 1973-01-12 1977-05-24 Philip Morris Incorporated Method for applying continuous longitudinal bands of liquid coating to a moving strip
US4123569A (en) * 1976-04-12 1978-10-31 Columbia Ribbon & Carbon Manufacturing Co., Inc. Direct ribbon inking by gravure
US4167914A (en) * 1977-05-25 1979-09-18 Bolton-Emerson, Inc. Rotating rod, rotating press roll nip coating apparatus
US4396648A (en) * 1982-02-08 1983-08-02 Consolidated Papers, Inc. Paper coating apparatus and method
US4518637A (en) * 1982-05-19 1985-05-21 Fuji Photo Film Co., Ltd. Coating solution metering method and apparatus
US4534308A (en) * 1981-11-25 1985-08-13 Basf Aktiengesellschaft Apparatus for applying treating media onto webs
US4537801A (en) * 1982-05-25 1985-08-27 Fuji Photo Film Co., Ltd. Coating method and apparatus
US4544579A (en) * 1981-09-18 1985-10-01 Allied Corporation Process and apparatus for applying and confining finish
EP0163451A1 (en) * 1984-05-14 1985-12-04 John Rogers Coating applicator head
EP0272996A1 (en) * 1986-11-28 1988-06-29 Beloit Corporation A coating apparatus
US5456944A (en) * 1991-10-15 1995-10-10 Eastman Kodak Company Magnetic dispersion coating method having high shear regions
US5597618A (en) * 1993-04-30 1997-01-28 Minnesota Mining And Manufacturing Company Application member for applying a coating material to a substrate
US5728429A (en) * 1994-08-13 1998-03-17 Glyco-Metall-Werke Gkyco B.V. & Co. Kg Method and a device for producing thin layers from liquids to form coating or foils
US5747107A (en) * 1995-10-26 1998-05-05 Minnesota Mining And Manufacturing Company Method of applying a hot melt coating
US20030136339A1 (en) * 2000-03-24 2003-07-24 Markku Lummila Arrangement for feeding a treatment substance to an application device
US20030192473A1 (en) * 2002-04-16 2003-10-16 3M Innovative Properties Company Die lip for strip coating
US20030232143A1 (en) * 2002-06-12 2003-12-18 Fuji Photo Film Co., Ltd. Coating device, and coating method using said device

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2611625C3 (en) * 1976-03-19 1980-03-13 Hoechst Ag, 6000 Frankfurt
GB2037188B (en) * 1978-12-21 1983-03-09 Vyzk Ustav Zuslechtovaci Applying treating liquids to textile webs
DE3315770C2 (en) * 1983-04-30 1991-02-21 Eduard Kuesters Maschinenfabrik Gmbh & Co Kg, 4150 Krefeld, De
US6231671B1 (en) 1998-11-04 2001-05-15 3M Innovative Properties Company Floating coating die mounting system
DE10208790C1 (en) * 2002-02-28 2003-10-16 Hhs Leimauftrags Systeme Gmbh An apparatus for applying flowable materials

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1983982A (en) * 1932-04-13 1934-12-11 Knollenberg Rudolf Apparatus for applying liquid fats, fat emulsions, and the like to a rotating drum
US2464771A (en) * 1946-04-09 1949-03-15 Interstate Folding Box Co Apparatus for coating webs
US2765769A (en) * 1952-05-01 1956-10-09 Schroeder Machines Corp Adhesive applicator
US3413143A (en) * 1963-12-10 1968-11-26 Ilford Ltd High speed coating apparatus

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1983982A (en) * 1932-04-13 1934-12-11 Knollenberg Rudolf Apparatus for applying liquid fats, fat emulsions, and the like to a rotating drum
US2464771A (en) * 1946-04-09 1949-03-15 Interstate Folding Box Co Apparatus for coating webs
US2765769A (en) * 1952-05-01 1956-10-09 Schroeder Machines Corp Adhesive applicator
US3413143A (en) * 1963-12-10 1968-11-26 Ilford Ltd High speed coating apparatus

Cited By (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3642515A (en) * 1967-08-24 1972-02-15 Xerox Corp Liquid development utilizing a curvilinear development electrode
US4025671A (en) * 1973-01-12 1977-05-24 Philip Morris Incorporated Method for applying continuous longitudinal bands of liquid coating to a moving strip
US3941902A (en) * 1973-03-02 1976-03-02 Svenska Cellulosa Aktiebolaget Method of making surface-treated paper
US3935338A (en) * 1973-04-23 1976-01-27 Shell Oil Company Process for the preparation of pressure-sensitive adhesive articles
US4123569A (en) * 1976-04-12 1978-10-31 Columbia Ribbon & Carbon Manufacturing Co., Inc. Direct ribbon inking by gravure
US4167914A (en) * 1977-05-25 1979-09-18 Bolton-Emerson, Inc. Rotating rod, rotating press roll nip coating apparatus
US4544579A (en) * 1981-09-18 1985-10-01 Allied Corporation Process and apparatus for applying and confining finish
US4534308A (en) * 1981-11-25 1985-08-13 Basf Aktiengesellschaft Apparatus for applying treating media onto webs
US4396648A (en) * 1982-02-08 1983-08-02 Consolidated Papers, Inc. Paper coating apparatus and method
US4518637A (en) * 1982-05-19 1985-05-21 Fuji Photo Film Co., Ltd. Coating solution metering method and apparatus
US4537801A (en) * 1982-05-25 1985-08-27 Fuji Photo Film Co., Ltd. Coating method and apparatus
EP0163451A1 (en) * 1984-05-14 1985-12-04 John Rogers Coating applicator head
EP0272996A1 (en) * 1986-11-28 1988-06-29 Beloit Corporation A coating apparatus
US5456944A (en) * 1991-10-15 1995-10-10 Eastman Kodak Company Magnetic dispersion coating method having high shear regions
US5582645A (en) * 1991-10-15 1996-12-10 Eastman Kodak Company Magnetic dispersion coating apparatus having high shear regions
US5597618A (en) * 1993-04-30 1997-01-28 Minnesota Mining And Manufacturing Company Application member for applying a coating material to a substrate
US5728429A (en) * 1994-08-13 1998-03-17 Glyco-Metall-Werke Gkyco B.V. & Co. Kg Method and a device for producing thin layers from liquids to form coating or foils
US5747107A (en) * 1995-10-26 1998-05-05 Minnesota Mining And Manufacturing Company Method of applying a hot melt coating
US20030136339A1 (en) * 2000-03-24 2003-07-24 Markku Lummila Arrangement for feeding a treatment substance to an application device
US6827778B2 (en) * 2000-03-24 2004-12-07 Metso Paper, Inc. Apparatus for feeding a treatment substance to an application device
US6803076B2 (en) * 2002-04-16 2004-10-12 3M Innovative Properties Company Die lip for strip coating
US20030192473A1 (en) * 2002-04-16 2003-10-16 3M Innovative Properties Company Die lip for strip coating
US20050025939A1 (en) * 2002-04-16 2005-02-03 3M Innovative Properties Company Die lip for strip coating
US7455897B2 (en) 2002-04-16 2008-11-25 3M Innovative Properties Company Die lip for strip coating
US20030232143A1 (en) * 2002-06-12 2003-12-18 Fuji Photo Film Co., Ltd. Coating device, and coating method using said device
US20050166839A1 (en) * 2002-06-12 2005-08-04 Fuji Photo Film Co., Ltd. Coating device, and coating method using said device
US7235134B2 (en) * 2002-06-12 2007-06-26 Fujifilm Corporation Coating device, and coating method using said device
US7354479B2 (en) * 2002-06-12 2008-04-08 Fujifilm Corporation Coating device, and coating method using said device
US20080175998A1 (en) * 2002-06-12 2008-07-24 Fujifilm Corporation Coating device, and coating method using said device

Also Published As

Publication number Publication date Type
DE1652402A1 (en) 1971-11-25 application
DK121343B (en) 1971-10-04 grant
BE708430A (en) 1968-05-02 grant
DE1652402B2 (en) 1975-04-24 application
DE1652402C3 (en) 1975-11-27 grant
GB1190324A (en) 1970-05-06 application
FR1548045A (en) 1968-11-29 grant
ES345958A1 (en) 1968-12-01 application

Similar Documents

Publication Publication Date Title
US3227136A (en) Extrusion coating apparatus
US3568636A (en) Hot melt applicator system
US4869933A (en) Coating device
US2761417A (en) Multiple coating apparatus
US4277301A (en) Wide-band and continuous line adhesive applicator for cigarette filter attachment and the like
US3348526A (en) Coating apparatus for coating webs
US5305955A (en) Nozzle bar with adjustable pattern
US2901770A (en) Extrusion apparatus and processes of extruding
US5389148A (en) Spray apparatus utilizing porous sheet
US4479987A (en) Process and an apparatus for stabilizing free-falling liquid curtains
US2066780A (en) Apparatus for and method of coating fabrics
US4348432A (en) Method for coating with radially-propagating, free, liquid sheets
US3081191A (en) Doctor blade
US3827397A (en) Apparatus for coating moving filamentary strands
US6168661B1 (en) Battery cell coating apparatus and method
US4366682A (en) Apparatus for the continuous treatment of textile materials
US3192895A (en) Web coating apparatus
US4814204A (en) Notched doctored single kiss roll applicator
US3167830A (en) Continuous metal casting apparatus
DE19903559A1 (en) Extremely high-speed falling liquid film paper coating machine
US4356217A (en) Process for producing striated surface coatings
US5871585A (en) Apparatus for applying a fluid to a moving web of material
US6309463B1 (en) Device for direct or indirect application of liquid or viscous coating medium onto a moving material web
US4948635A (en) Gravure coating device and method
US3063868A (en) Apparatus and method for coating continuous webs