CA2108841A1 - Jet coating apparatus and method - Google Patents
Jet coating apparatus and methodInfo
- Publication number
- CA2108841A1 CA2108841A1 CA002108841A CA2108841A CA2108841A1 CA 2108841 A1 CA2108841 A1 CA 2108841A1 CA 002108841 A CA002108841 A CA 002108841A CA 2108841 A CA2108841 A CA 2108841A CA 2108841 A1 CA2108841 A1 CA 2108841A1
- Authority
- CA
- Canada
- Prior art keywords
- web
- jet
- slot orifice
- lower lip
- coating mix
- 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.)
- Abandoned
Links
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP 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
- D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
- D21H23/02—Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
- D21H23/22—Addition to the formed paper
- D21H23/32—Addition 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
- D21H23/34—Knife or blade type coaters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
- B05C5/02—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
- B05C5/0283—Flat jet coaters, i.e. apparatus in which the liquid or other fluent material is projected from the outlet as a cohesive flat jet in direction of the work
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
- B05C11/10—Storage, supply or control of liquid or other fluent material; Recovery of excess liquid or other fluent material
- B05C11/1002—Means for controlling supply, i.e. flow or pressure, of liquid or other fluent material to the applying apparatus, e.g. valves
Abstract
[57] Abstract A jet coating apparatus and method for applying coating mix onto a moving web (14) in a noncontacting manner in ambient pressure. The apparatus comprises an upper lip (2) placed close to the web (14), a lower lip (3) situated in the vicinity of the upper lip (2) and arranged essentially on the trailing side relative to the moving direction of the web (14), whereby the slot orifice bounding surface (9) of the upper lip (2) and slot orifice bounding surface (11) of the lower lip (3) form a slot orifice (5) suited for feeding the coating mix onto the web (14). According to the invention, in the slot orifice (5) at least the directional vector (18) along the slot orifice surface (11) of the lower lip (3) has a vector component (20) opposite to the tangential velocity vector (19) of the web (14).
(Fig. 2)
(Fig. 2)
Description
~ 1 0 ~
Jet coating apparatu~ and method The present invention relates to a jet coating apparatus according to the preamble of claim l s The method also concerns a jet-coating method EP patent application 0,466,420 discloses a jet coating method in which a jet coating apparatus is employed for applying the coating mix on the web and the final coat weight i~ controlled by means of an actual doctor blade The coating mix is applied on the web in ambient pressure without a pressurized coating chamber The jet coating unit of the apparatus is tiltable about its tip, thus permitting when necessary an almost perpendicular application of the coating mix jet onto the web Particularly at high web speeds (above lO00 m/min), problems are caused by entrained air carried over in the web and applied coating mix, resulting in inferior coat quality, mottling and po~ibly uncoated areae Moreover, the air entrained in the web cau~es unevenness of the applied coat Sufficient penetration of the mix into the web is also difficult to attain 2S Further, known in the art from FI patent application 89 0249 (US patent application 5,104,697) is a brush coating apparatus in which the coating mix is applied onto the web via a channel of narrow slot ori~ice with the help of a predoctoring blade tilted to a narrow angle with re-pect to the web Typically, the embodiment also incorporat-- a doctor blade arranged at the same backing roll Th~ embodim nt ha~ problem~ in ~ome operating ituation- particularly when the tension distribution of the ba~e web i9 uneven, whereby the two points (coating apparatus and doctor blade) contacting the web produce a d-loteriou ly uneven distribution of cro~-machine web 8&~
tension between these two points. Such a situation causes runnability problems under certain conditions.
It is an object of the present invention to overcome the drawbacks of the above-described techniques and to achieve an entirely novel jet coating apparatus and method.
The invention is based on designing the apparatus such that directs a coating mix jet from a jet coating apparatus, which is noncontactingly outdistanced from the web, in ambient pressure at least partially counter to the machine direction of the web. In other words, the directional vector of the coating mix jet which exits the slot orifice has a component opposite to the machine direction of the web.
More specifically, the jet coating apparatus according to the invention is characterized by what is stated in the characterizing part of claim 1.
Furthermore, the jet coating method according to the invention is characterized by what is stated in the characterizing part of claim 5.
The invention provides significant benefits.
Owing to the noncontacting coating principle, uneven distribution of web tension in the cross-machine direc-tion i- avoided. Owing to the jet coating directed eount r to the maehine direetion of the web travel, good p n-tration of the eoating mix into the base web is attain d. Jet coating directed counter to the machine direction o~ the web travel also prevents air ported by 3S the web from entraining into the eoating mix, thus r-dueing the eurrenee of uneoated areas on the web.
- Addition~lly, the eounterdireetional ~et eoating .
technique alleviates problems caused by air bubbles entrained in the coating mix.
In the following the invention is described in greater detail with the help of ~xemplifying embodiments illustrated in the annexed drawings in which Figure 1 shows a longitudinally sectional side view of a jet coatinq apparatus according to the invention.
Figure 2 shows a detail of the embodiment illustrated in Fig. 1.
Figure 3 shows an alternative embodiment to that illus-trated in Fig. 2.
Figure 4 shows a longitudinally sectional side view of another jet coating apparatus according to the invention.
With reference to Fig. 1, a tangent line drawn tangen-tially to the surface of a backing roll 1, at the slot orifice 5 of a jet-coating apparatus which is placed essentially under the backing roll 1, is denoted by a ; dashed line 7. The jet coating apparatus comprises an upper lip 2 and a lower lip 3. The slot orifice S of the coating apparatus is formed ffl a curved slot orifice bounding surface 9 of the upper lip and a conformantly curved slot orifice bounding surrace 11 of the lower lip 3. Tho path o~ the coating mix starts as a narrow channel 34 6, which typically ~urther tapers into a slot orifice 5.
Tho width o~ the channel 6 is initially approx. 0.5 -10 mo, typically in the range 1.5 - 4 mm. Obviously, the chann-l 6 must extend in the cross-machine direction at l-a-t over the cros~-machine width of the web 14. The width of the slot orifice 5 i~ typically in the range O.S - 10 m. The ~pacing at the gap 8 betw en the ~et coating apparatus and the backing roll 1 (web 14) is 21~8~
typically 1 - 20 mm, advantageously approx. 3 - 3 mm. The width of the gap 5 is adjustable by a screw 4. This spacing adjustment affects the coating mix flow velocity.
With a constant-volume feed, the coating mix exit velocity increases when the slot orifice 5 is adjusted smaller. Also the upper lip 2 can be arranged adjustable with respect to the coater frame, thus permitting also a cross-sectional adjustment of the channel 6 when necessary. The curved tip 9 of the upper lip 2 induces the known Coanda effect, whereby the coating mix ~et tends to adhere to the bounding surface of the upper lip 2 in the gap 8. The radius of curvature of the tip 9 can vary in the range 1 - 50 mm; however, the radius of curvature is typically in the range 3 - 10 mm.
~5 With reference to Fig. 2, a normal 13 is drawn to the tangent 7 at the backing roll 1 (and the web 14) at the ! slot orifice 5. The coating mix jet exiting the slot - orifice 5 can be characterized by two angles:
a': angle between the jet upper ~urface and the normal 13, or the trailing angle, and a'': angle between the jet lower surface and the normal 13, or the back angle.
c Then, the average angle, jet tilt angle ~ is obtained as the average of these anqles, or (a'+a'')/2. The angle a can be ad~u~ted by means o~
a) the radius o~ curvature, r, whereby a smaller radius of curvature facilitates the use of a large value for the angles a and a', 3S b) the screw 4 (Fig. 1) which adjusts the width of the slot orifice 5, whereby a smaller width of the slit 5 increases the angle a, and c) adjustment of the length of the bounding surface 11 of the lower lip 3 The shorter the guiding bounding surface 11, the smaller will be the angle a and the angle ~' The design of the curved channel according to the diagram has the basic requirement that the slot orifice bounding surface 11 of the lower lips 3 in the region of the slot orifice 5 is curved toward the approach direction of the web 14, whereby a desired direction of the coating mix jet is attained Further, the velocity of the coating mix jet must be sufficiently high to attain the splitting of the jet stream into two flows 16 and 17 A sufficient limit velocity is 1 5 m/s when the distance of the slot orifice 5 from the web i8 3 mm, the slot orifice width is 2 mm and the web speed is 1000 m/min The minimum limit velocity of the ~et will be higher if the distance of the slot orifice 5 from the web ~urface is wider Increasing the web speed also has an effect of increasing the minimum limit velocity of the coating mix jet A
desirable jet velocity is aehieved by means of an effieient eoating mix pump (not shown) The basie prineiple of the invention i8 to design the ~lot orifiee strueture sueh that has the trailing angle a' ~ 0 , wh reby the eoating mix ~et is direeted counter to th maehin--direetion travel of the web 14 The angle ~' ean b varied ln th range 0' < a' < 90 , typically 0 < a' < 60 With referenee to Fig 2, the total flow 15 of the eoating mix ~-t iB Bplit a~ter the slot orifice 5 into t~o branch ~, a return flow 16 and a eoating mix ~low 17 Owing to the tilted direetion and velocity of the ~et, 2~84~
the return flow 16 represents approx. 30 - 60 % of the total flow 15. Typically, the proportion of the return flow is approx. 50 %.
Besides the angle a', the invention can be characterized by the directional vector 18 along the slot orifice bounding surface 11 of the lower lip 3, whereby said vector can be divided into a vector cOmponQnt 21 ortho-gonal to the tangential velocity vector 19 of the web and a vector component 20 opposite to said tangential web velocity vector. A prerequisite for the correct aiming of the coating mix jet is the existence of said oppositely directed vector component 20. As the direction vector 18 determines the trailing angle of the coating mix jet, the vector 18 can also be defined through the angle ~'. The vector 18 also subtends the angle a' with the normal 13.
In comparison with that shown in Fig. 2, the embodiment ; according to Fig. 3 has the radius of curvature r slightly increa~ed and the bounding surface ll shortened, whereby the angle~ a and a' will become smaller.
The lower lips 3 illustrated in Figs. 3 and 4 are easily replaceable with a flexible blade, thus making the apparatu~ conveniently convertible for use with different web materials and coating mixes.
Fig. 4 illustrate~ an alternative embodiment according to tho invention having the slot orifice bounding ~urfaces 9 and 11 d -ign-d essentially uncurved.
!
Jet coating apparatu~ and method The present invention relates to a jet coating apparatus according to the preamble of claim l s The method also concerns a jet-coating method EP patent application 0,466,420 discloses a jet coating method in which a jet coating apparatus is employed for applying the coating mix on the web and the final coat weight i~ controlled by means of an actual doctor blade The coating mix is applied on the web in ambient pressure without a pressurized coating chamber The jet coating unit of the apparatus is tiltable about its tip, thus permitting when necessary an almost perpendicular application of the coating mix jet onto the web Particularly at high web speeds (above lO00 m/min), problems are caused by entrained air carried over in the web and applied coating mix, resulting in inferior coat quality, mottling and po~ibly uncoated areae Moreover, the air entrained in the web cau~es unevenness of the applied coat Sufficient penetration of the mix into the web is also difficult to attain 2S Further, known in the art from FI patent application 89 0249 (US patent application 5,104,697) is a brush coating apparatus in which the coating mix is applied onto the web via a channel of narrow slot ori~ice with the help of a predoctoring blade tilted to a narrow angle with re-pect to the web Typically, the embodiment also incorporat-- a doctor blade arranged at the same backing roll Th~ embodim nt ha~ problem~ in ~ome operating ituation- particularly when the tension distribution of the ba~e web i9 uneven, whereby the two points (coating apparatus and doctor blade) contacting the web produce a d-loteriou ly uneven distribution of cro~-machine web 8&~
tension between these two points. Such a situation causes runnability problems under certain conditions.
It is an object of the present invention to overcome the drawbacks of the above-described techniques and to achieve an entirely novel jet coating apparatus and method.
The invention is based on designing the apparatus such that directs a coating mix jet from a jet coating apparatus, which is noncontactingly outdistanced from the web, in ambient pressure at least partially counter to the machine direction of the web. In other words, the directional vector of the coating mix jet which exits the slot orifice has a component opposite to the machine direction of the web.
More specifically, the jet coating apparatus according to the invention is characterized by what is stated in the characterizing part of claim 1.
Furthermore, the jet coating method according to the invention is characterized by what is stated in the characterizing part of claim 5.
The invention provides significant benefits.
Owing to the noncontacting coating principle, uneven distribution of web tension in the cross-machine direc-tion i- avoided. Owing to the jet coating directed eount r to the maehine direetion of the web travel, good p n-tration of the eoating mix into the base web is attain d. Jet coating directed counter to the machine direction o~ the web travel also prevents air ported by 3S the web from entraining into the eoating mix, thus r-dueing the eurrenee of uneoated areas on the web.
- Addition~lly, the eounterdireetional ~et eoating .
technique alleviates problems caused by air bubbles entrained in the coating mix.
In the following the invention is described in greater detail with the help of ~xemplifying embodiments illustrated in the annexed drawings in which Figure 1 shows a longitudinally sectional side view of a jet coatinq apparatus according to the invention.
Figure 2 shows a detail of the embodiment illustrated in Fig. 1.
Figure 3 shows an alternative embodiment to that illus-trated in Fig. 2.
Figure 4 shows a longitudinally sectional side view of another jet coating apparatus according to the invention.
With reference to Fig. 1, a tangent line drawn tangen-tially to the surface of a backing roll 1, at the slot orifice 5 of a jet-coating apparatus which is placed essentially under the backing roll 1, is denoted by a ; dashed line 7. The jet coating apparatus comprises an upper lip 2 and a lower lip 3. The slot orifice S of the coating apparatus is formed ffl a curved slot orifice bounding surface 9 of the upper lip and a conformantly curved slot orifice bounding surrace 11 of the lower lip 3. Tho path o~ the coating mix starts as a narrow channel 34 6, which typically ~urther tapers into a slot orifice 5.
Tho width o~ the channel 6 is initially approx. 0.5 -10 mo, typically in the range 1.5 - 4 mm. Obviously, the chann-l 6 must extend in the cross-machine direction at l-a-t over the cros~-machine width of the web 14. The width of the slot orifice 5 i~ typically in the range O.S - 10 m. The ~pacing at the gap 8 betw en the ~et coating apparatus and the backing roll 1 (web 14) is 21~8~
typically 1 - 20 mm, advantageously approx. 3 - 3 mm. The width of the gap 5 is adjustable by a screw 4. This spacing adjustment affects the coating mix flow velocity.
With a constant-volume feed, the coating mix exit velocity increases when the slot orifice 5 is adjusted smaller. Also the upper lip 2 can be arranged adjustable with respect to the coater frame, thus permitting also a cross-sectional adjustment of the channel 6 when necessary. The curved tip 9 of the upper lip 2 induces the known Coanda effect, whereby the coating mix ~et tends to adhere to the bounding surface of the upper lip 2 in the gap 8. The radius of curvature of the tip 9 can vary in the range 1 - 50 mm; however, the radius of curvature is typically in the range 3 - 10 mm.
~5 With reference to Fig. 2, a normal 13 is drawn to the tangent 7 at the backing roll 1 (and the web 14) at the ! slot orifice 5. The coating mix jet exiting the slot - orifice 5 can be characterized by two angles:
a': angle between the jet upper ~urface and the normal 13, or the trailing angle, and a'': angle between the jet lower surface and the normal 13, or the back angle.
c Then, the average angle, jet tilt angle ~ is obtained as the average of these anqles, or (a'+a'')/2. The angle a can be ad~u~ted by means o~
a) the radius o~ curvature, r, whereby a smaller radius of curvature facilitates the use of a large value for the angles a and a', 3S b) the screw 4 (Fig. 1) which adjusts the width of the slot orifice 5, whereby a smaller width of the slit 5 increases the angle a, and c) adjustment of the length of the bounding surface 11 of the lower lip 3 The shorter the guiding bounding surface 11, the smaller will be the angle a and the angle ~' The design of the curved channel according to the diagram has the basic requirement that the slot orifice bounding surface 11 of the lower lips 3 in the region of the slot orifice 5 is curved toward the approach direction of the web 14, whereby a desired direction of the coating mix jet is attained Further, the velocity of the coating mix jet must be sufficiently high to attain the splitting of the jet stream into two flows 16 and 17 A sufficient limit velocity is 1 5 m/s when the distance of the slot orifice 5 from the web i8 3 mm, the slot orifice width is 2 mm and the web speed is 1000 m/min The minimum limit velocity of the ~et will be higher if the distance of the slot orifice 5 from the web ~urface is wider Increasing the web speed also has an effect of increasing the minimum limit velocity of the coating mix jet A
desirable jet velocity is aehieved by means of an effieient eoating mix pump (not shown) The basie prineiple of the invention i8 to design the ~lot orifiee strueture sueh that has the trailing angle a' ~ 0 , wh reby the eoating mix ~et is direeted counter to th maehin--direetion travel of the web 14 The angle ~' ean b varied ln th range 0' < a' < 90 , typically 0 < a' < 60 With referenee to Fig 2, the total flow 15 of the eoating mix ~-t iB Bplit a~ter the slot orifice 5 into t~o branch ~, a return flow 16 and a eoating mix ~low 17 Owing to the tilted direetion and velocity of the ~et, 2~84~
the return flow 16 represents approx. 30 - 60 % of the total flow 15. Typically, the proportion of the return flow is approx. 50 %.
Besides the angle a', the invention can be characterized by the directional vector 18 along the slot orifice bounding surface 11 of the lower lip 3, whereby said vector can be divided into a vector cOmponQnt 21 ortho-gonal to the tangential velocity vector 19 of the web and a vector component 20 opposite to said tangential web velocity vector. A prerequisite for the correct aiming of the coating mix jet is the existence of said oppositely directed vector component 20. As the direction vector 18 determines the trailing angle of the coating mix jet, the vector 18 can also be defined through the angle ~'. The vector 18 also subtends the angle a' with the normal 13.
In comparison with that shown in Fig. 2, the embodiment ; according to Fig. 3 has the radius of curvature r slightly increa~ed and the bounding surface ll shortened, whereby the angle~ a and a' will become smaller.
The lower lips 3 illustrated in Figs. 3 and 4 are easily replaceable with a flexible blade, thus making the apparatu~ conveniently convertible for use with different web materials and coating mixes.
Fig. 4 illustrate~ an alternative embodiment according to tho invention having the slot orifice bounding ~urfaces 9 and 11 d -ign-d essentially uncurved.
!
Claims (9)
1. A jet coating apparatus for applying coating mix onto a moving web (14) in a noncontacting manner in ambient pressure, said apparatus comprising - an upper lip (2) placed close to the web (14), and - a lower lip (3) situated in the vicinity of the upper lip (2) and arranged essentially on the trailing side relative to the moving direc-tion of the web (14), whereby the slot orifice bounding surface (9) of the upper lip (2) and slot orifice bounding surface (11) of the lower lip (3) form a slot orifice (5) suited for feeding the coating mix onto the web (14), c h a r a c t e r i z e d in that - in the slot orifice (5) at least the direc-tional vector (18) along the slot orifice bounding surface (11) of the lower lip (3) has a vector component (20) opposite to the tan-gential velocity vector (19) of the web (14).
2. An apparatus as defined in claim 1, c h a r a c -t o r i z e d in that the lower lip (3) has a curved contour and extends at the slot orifice (5) toward the approach direction (19) of the web (14).
3. An apparatus as defined in claim 2, c h a r a c -t e r i z e d in that the tip region (9) of the upper lip (2) has a curved contour and the slot orifice bound-ing surface (11) of the lower lip (3) has a shape which is essentially conformant to the curved shape of the upper lip (2).
4. An apparatus as defined in claim 1, c h a r a c -t e r i z e d in that the lower lip (3) incorporates control means (4) for adjusting the position of the lower lip (3) and aligning the direction of the exiting jet.
5. An apparatus as defined in claim 1, c h a r a c -t e r i z e d in that said control means is an adjust-ment screw (4).
6. A jet coating method for applying coating mix onto a moving web (14) in a noncontacting manner in ambient pressure, c h a r a c t e r i z e d in that the coating mix jet is directed counter to the approach direction of the web (14) at a velocity sufficiently high to attain the splitting of the jet stream into a return flow (16) and a coating mix application flow (17).
7. A method as defined in claim 6, c h a r a c t e r -i z e d in that the coating mix jet is directed so that the trailing angle .alpha.' subtended between the coating mix jet and the normal (13) of the tangent line (7) drawn tangentially at the slot orifice (5) is greater than 0°.
8. A method as defined in claim 6, c h a r a c t e r -i z e d in that the trailing angle .alpha.' is adjusted by moving the lower lip (3).
9. A method as defined in claim 8, c h a r a c t e r -i z e d in that the trailing angle .alpha.' is adjusted by moving the lower lip (3) by means of an adjustment screw (4).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FI924841 | 1992-10-26 | ||
| FI924841A FI105533B (en) | 1992-10-26 | 1992-10-26 | Spray Coating Apparatus and Method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2108841A1 true CA2108841A1 (en) | 1994-04-27 |
Family
ID=8536107
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002108841A Abandoned CA2108841A1 (en) | 1992-10-26 | 1993-10-20 | Jet coating apparatus and method |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US5510150A (en) |
| JP (1) | JPH06198242A (en) |
| KR (1) | KR100280185B1 (en) |
| CA (1) | CA2108841A1 (en) |
| DE (1) | DE4336365B4 (en) |
| FI (1) | FI105533B (en) |
| FR (1) | FR2697176B1 (en) |
| GB (1) | GB2272390B (en) |
| SE (1) | SE511999C2 (en) |
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| FI97817C (en) * | 1993-10-27 | 1997-02-25 | Valmet Paper Machinery Inc | Method and arrangement for coating a moving track |
| WO1995029766A1 (en) * | 1994-04-29 | 1995-11-09 | Minnesota Mining And Manufacturing Company | Precision coating process for preparing polymerizable films |
| ATE200325T1 (en) * | 1994-09-09 | 2001-04-15 | Voith Paper Patent Gmbh | APPLICATION WORK FOR THE DIRECT OR INDIRECT APPLICATION OF A LIQUID OR PASTY MEDIUM TO A RUNNING MATERIAL WEB |
| US5525376A (en) * | 1995-02-02 | 1996-06-11 | Minnesota Mining And Manufacturing Company | Multiple layer coating method |
| FI109215B (en) * | 1996-10-28 | 2002-06-14 | Metso Paper Inc | Method and apparatus for coating paper or cardboard web |
| FI110274B (en) | 1996-11-04 | 2002-12-31 | Metso Paper Inc | Method and apparatus for coating a moving cardboard web |
| DE19651739A1 (en) * | 1996-12-12 | 1998-06-18 | Voith Sulzer Papiermasch Gmbh | Web coating applicator |
| DE19652827A1 (en) | 1996-12-18 | 1998-06-25 | Voith Sulzer Papiermasch Gmbh | Applicator for direct or indirect application of a liquid or pasty coating medium to a running material web, in particular made of paper or cardboard |
| US6306461B1 (en) | 1997-05-09 | 2001-10-23 | Valmet Corporation | Method and apparatus for coating paper board and paper with high- viscosity coating mixes |
| FI110956B (en) * | 1997-11-21 | 2003-04-30 | Metso Paper Inc | JET application station and coating process |
| DE10245072A1 (en) * | 2002-09-27 | 2004-04-08 | Voith Paper Patent Gmbh | commissioned |
| FI123602B (en) | 2010-06-04 | 2013-08-15 | Metso Paper Inc | Jet nozzle construction and method for applying material to a moving surface |
| AT511413B1 (en) * | 2011-05-10 | 2015-02-15 | Steindl Roman Dipl Ing | METHOD FOR PRODUCING PAPER PRODUCTS |
| EP3260802B1 (en) * | 2016-06-23 | 2019-10-09 | Valmet Technologies Oy | Nozzle for a device for contact-free treatment of a running fiber web |
| US10974656B2 (en) * | 2019-05-10 | 2021-04-13 | Theodore J. Keck | Pickup truck tailgate storage carrier and resting surface |
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| JPH0824872B2 (en) * | 1988-06-07 | 1996-03-13 | 松下電器産業株式会社 | Coating device |
| FI90634C (en) * | 1989-01-17 | 1994-03-10 | Valmet Paper Machinery Inc | Coating device and method for coating a web |
| US5186753A (en) * | 1990-07-10 | 1993-02-16 | Ishikawajima-Harima Jukogyo Kabushiki Kaisha | Fountain coater |
| JP3034292B2 (en) * | 1990-10-23 | 2000-04-17 | 株式会社東芝 | Photosensitive solution application method |
| DE4116729C2 (en) * | 1991-05-23 | 1993-11-25 | Voith Gmbh J M | Nozzle-like coating device for applying a coating slip to a running paper web |
-
1992
- 1992-10-26 FI FI924841A patent/FI105533B/en active
-
1993
- 1993-10-19 JP JP5261143A patent/JPH06198242A/en active Pending
- 1993-10-20 CA CA002108841A patent/CA2108841A1/en not_active Abandoned
- 1993-10-20 KR KR1019930021760A patent/KR100280185B1/en not_active IP Right Cessation
- 1993-10-22 FR FR9312606A patent/FR2697176B1/en not_active Expired - Fee Related
- 1993-10-25 SE SE9303494A patent/SE511999C2/en not_active IP Right Cessation
- 1993-10-25 DE DE4336365A patent/DE4336365B4/en not_active Expired - Fee Related
- 1993-10-26 GB GB9322030A patent/GB2272390B/en not_active Expired - Fee Related
-
1994
- 1994-09-13 US US08/305,078 patent/US5510150A/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| SE9303494D0 (en) | 1993-10-25 |
| GB2272390B (en) | 1995-07-26 |
| FR2697176B1 (en) | 1997-01-10 |
| FI105533B (en) | 2000-09-15 |
| FI924841A0 (en) | 1992-10-26 |
| FI924841A (en) | 1994-04-27 |
| SE511999C2 (en) | 2000-01-10 |
| JPH06198242A (en) | 1994-07-19 |
| DE4336365A1 (en) | 1994-04-28 |
| FR2697176A1 (en) | 1994-04-29 |
| US5510150A (en) | 1996-04-23 |
| KR100280185B1 (en) | 2001-02-01 |
| DE4336365B4 (en) | 2005-10-27 |
| GB2272390A (en) | 1994-05-18 |
| KR940008748A (en) | 1994-05-16 |
| SE9303494L (en) | 1994-04-27 |
| GB9322030D0 (en) | 1993-12-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| FZDE | Dead |