CN202175889U - Curtain coating device for paper web or paperboard web - Google Patents
Curtain coating device for paper web or paperboard web Download PDFInfo
- Publication number
- CN202175889U CN202175889U CN2011201445930U CN201120144593U CN202175889U CN 202175889 U CN202175889 U CN 202175889U CN 2011201445930 U CN2011201445930 U CN 2011201445930U CN 201120144593 U CN201120144593 U CN 201120144593U CN 202175889 U CN202175889 U CN 202175889U
- Authority
- CN
- China
- Prior art keywords
- coating
- width
- web
- cloth material
- coated
- 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 - Fee Related
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
- D21H23/46—Pouring or allowing the fluid to flow in a continuous stream on to the surface, the entire stream being carried away by the paper
- D21H23/48—Curtain 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
- B05C5/007—Slide-hopper coaters, i.e. apparatus in which the liquid or other fluent material flows freely on an inclined surface before contacting the work
- B05C5/008—Slide-hopper curtain 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
- B05C9/00—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important
- B05C9/06—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important for applying two different liquids or other fluent materials, or the same liquid or other fluent material twice, to the same side of the work
Landscapes
- Paper (AREA)
- Coating Apparatus (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The utility model relates to a curtain coating device for a paper web or a paperboard web, which is provided with a support mechanism disposed below the web (W) to be coated, a support roll (6) arranged at the back of a coating point and having a relatively small diameter, and a support mechanism (5) disposed in front of the support roll, supporting the bottom surface of the web and provided with a sliding face. The support mechanism (5) is adjustable so as to support the web (W) selectively or at a position in front of the coating point (8), and thus coating can be done on a free web; or the support mechanism supports the web (W) at the position of the coating point (8) so that coating can be done on a supported web. At least one from the support roll (6), the support mechanism (5) and other transverse structure used for the coating device is at least partially made of a composite material.
Description
Technical field
The utility model relates to a kind of curtain painting equipment (Florstreichanlage) that is used for paper web or board web material; Wherein, Guide width of cloth material to be coated through the curtain coating cloth deck; In this coating cloth deck, spill coating curtain (Streichmassenvorhang) the arrival width of cloth material surface that device flows downward from dripping, and on width of cloth material surface, form single or multiple lift coating.
Background technology
Curtain coater can be divided into: by groove feed (slot type feed (slot-fed)) with by plane feed (slip charging (slide-fed)).In the curtain coater by the plane feed, coating is transported on the plane inclined through nozzle unit, and flows towards the marginal surface that constitutes feed boss (Zuf ü hrungslippe) therefrom, and at this, coating falls to forming curtain shape from the feed boss.In the dressing beam by the groove feed, coating is pumped in the narrow and vertical groove through distributor chamber, is forming curtain on the boss of groove and is dropping on the width of cloth material.Coating can be coated on one or more positions.(Randf ü hrung) can make the curtain of formation remain on width arbitrarily through margin control, and margin control can be placed on the edge of feed gap or feed boss according to its name.
Many different paper and cardboard kind are arranged at present, and can be divided into two types according to their every weight per square meter: one type is that individual layer and every square meter weight are 25-300g/m
2Paper, another kind of is to utilize multilayer technique manufacturing or individual layer and every square meter weight to be 100-600g/m
2Cardboard.Can see that the boundary between paper and the cardboard moves, because every square meter weight of the lightest cardboard is lighter than the heaviest paper.In general, paper is used for printing, and cardboard is used for packing.Can be coated with paper and cardboard, also can not be coated with.
But the following stated be to the value of present employed coated fiber width of cloth material for example, these for example in the middle of, tangible fluctuation can appear in the value that is provided.This explanation is main according to
Papermaking Science and Technology; Papermaking Part 3; Finishing; Hrsg.v.Jokio; M.;
bei Fapet Oy;
1999,361 Seiten..
The mechanical quality, the bleaching needle-point leaf pulp of 25-40% and the filler of 20-35% and the coating material that comprise 40-60% through magazine paper's (coating of LWC=low weight) of coating.Following set-point can be used as the general value of LWC-paper: every square meter weight 40-70g/m
2, Hunter-glossiness (ISO 8254-1) 50-65%, PPS S10-roughness (SCAN-P 76/95) is 0.8-1.5 μ m (hectographic printing (Offset)) and 0.6-1.0 μ m (runner intaglio plate (Roto)), density is 1100-1250kg/m
3, blue reflectance factor (ISO 2470) is 70-75%, opacity (ISO 2471) is 89-94%.
Following set-point can be used as the general value of MFC-paper (finished coated on the machine): every square meter weight is 50-70g/m
2, Hunter-glossiness (ISO 8254-1) is 25-70%, and PPS S10-roughness (SCAN-P 76/95) is 2.2-2.8 μ m, and density is 900-950kg/m
3, blue reflectance factor (ISO2470) is 70-75%, opacity (ISO 2471) is 91-95%.
Following set-point can be used as the general value of FCO-paper (hectographic printing of film coated): every square meter weight is 40-70g/m
2, Hunter-glossiness (ISO 8254-1) is 45-55%, and PPS S10-roughness (SCAN-P 76/95) is 1.5-2.0 μ m, and density is 1000-1050kg/m
3, blue reflectance factor (ISO 2470) is 70-75%, opacity (ISO 2471) is 91-95%.
Following set-point can be used as the general value of MWC-paper (middle weight coated): every square meter weight is 70-90g/m
2, Hunter-glossiness (ISO 8254-1) is 65-75%, and PPS S10-roughness (SCAN-P 76/95) is 0.6-1.0 μ m, and density is 1150-1250kg/m
3, blue reflectance factor (ISO2470) is 70-75%, opacity (ISO 2471) is 89-94%.
In HWC (heavy amount coating), every square meter weight is 100-135g/m
2, and even can surpass twice coating.
In no wooden coated printing paper or accurate paper (WFC) based on paper pulp, demand and purposes are depended in the fluctuation of coating quantity to a great extent.Below be based on the general value of printing paper paper pulp, that warp is coated with once or twice: for what once be coated with, every square meter weight 90g/m
2, Hunter-glossiness (ISO8254-1) is 65-80%, and PPS S10-roughness (SCAN-P 76/95) is 0.75-2.2 μ m, and blue reflectance factor (ISO 2470) is 80-88%, and opacity (ISO 2471) is 91-94%; For secondary coating, every square meter weight 130g/m
2, Hunter-glossiness (ISO 8254-1) is 70-80%, and PPS S10-roughness (SCAN-P 76/95) is 0.65-0.95 μ m, and blue reflectance factor (ISO 2470) is 83-90%, and opacity (ISO 2471) is 95-97%.
Heat-sensitive paper has the thermo colour layer, and it for example can comprise heat sensitive wax, and heat sensitive wax is separated the color of component with the color that receives reactive material.When paper surface is heated, wax will melt and allow above-mentioned substance to contact with each other, and form needed sample thus.The general paper of every square meter weight in 40-60 g/m2 scope that uses carries out pre-coating or top sizing to body paper usually as body paper.In addition, also can utilize the protective coating layer to protect to the thermo colour layer.
The colony that cardboard is formed is very inhomogeneous, and wherein, it can have the higher kind of every square meter weight, even can reach 600g/m
2, also can comprise the very low kind of every square meter weight, approximately can arrive 100g/m
2, these kinds can from based on fibrillation to 100% based on regenerated fiber, and be applied to repeatedly coating from nothing.
Coated board comprises following kind:
Based on fibriilar cardboard (folder (FBB=folder); Bleached paper pulpboard (SBS=solid bleach plate); Flexible package punch cardboard (LPB=flexible package punch cardboard); Coating fine flour coating (through the white top liner support plate of coating, English: coated white top liner, carrier board)).
Cardboard (fine flour chipboard (WLC=bleached pulp vermicelli chipboard) is through the Reclaimed board of coating) based on regenerated fiber.
The curtain coating technique is applicable to the production of all above-mentioned kinds in principle.Though the curtain coating process can not obtain as the same smoothness of scraper coating process, thus obtained coverage rate is better than the scraper coating technique.
The problem of curtain coating process is, the supporting of width of cloth material need be set, to be formed uniformly the dope layer that will on width of cloth material, form as far as possible in the scope that is coated with the application point of the door curtain made of cloth (Aufbringungspunkt).According to prior art solutions, in the coating process, realize supporting in two ways usually: supporting is arranged on the position of the application point that is coated with the door curtain made of cloth, perhaps utilizes the supporting device supporting width of cloth material that is arranged on the application point both sides to width of cloth material.In practice, be coated with the mode of supporting and mean and use roller as supporting member.Broad and/or faster width of cloth material need use and have larger-diameter roller, to guarantee its dynamic characteristic, this is a kind of solution that takes up room.In addition, the roller of bigger rotation can be brought a lot of air in coating zone, and can not adjust the application point angle in practice.When in the scope that is being positioned the supporting device between the application point both sides when width of cloth material is coated with freely, the air itself that is produced by this mechanism is not big problem, but in some cases, the vibration of width of cloth material may bring problem.In addition, this solution also need take up room.
Early stage fi patent document FI 20055040 by applicant oneself discloses a kind of device; It comprises the supporting device that is arranged on below the width of cloth material to be coated, is arranged on after the application point and has relatively than the backing roll of minor diameter and be arranged on before this backing roll and be equipped with the supporting device of sliding surface; This supporting device is adjustable; So that perhaps be positioned at application point suitable place upper support width of cloth material before alternatively, and be coated with on the width of cloth material freely thus, perhaps upper support width of cloth material in the position of application point; At this, coating occurs on the width of cloth material that is supported.Have relatively roller than minor diameter be meant relevant with the application, diameter be no more than 700mm in a big way in roller.
The position of backing roll is set to preferred tunable, thereby can adjusts the application point of curtain through the position that changes roller about width of cloth material.Preferably come to be provided with the front end of sliding surface with different angular positions adjustablely, thus, when being coated with on the width of cloth material that is being supported, position, angle that can be through changing front end and also possibly adjust and apply the angle through changing being provided with of roller.
This solution makes it possible on the width of cloth material that is supported, perhaps be coated with on the width of cloth material freely alternatively, and itself runs well.But problem wherein is; Owing to reduced the size of roller; Cause and when vibrational excitation occurring near the position of the roller that is rotating, can cause occurring vibration problem; This just requires to increase the size of roller and lateral support structure, so that obtain enough rigidity, particularly in the coating machine of large-scale and high-speed cruising.
The utility model content
Therefore, the purpose of the utility model is, proposes a solution, utilizes this scheme can eliminate the risk of vibration basically.In order to achieve this end, be that according to the unique distinction of the equipment of the utility model backing roll, supporting device and other are used at least one of transversary of apparatus for coating and are processed by composite.
The purpose of the utility model realizes through a kind of curtain apparatus for coating that is used for paper web/board web material; It has the supporting device that is arranged on below the width of cloth material to be coated; Be arranged on after the application point and have backing roll than minor diameter; Be arranged on the supporting device that supports and be equipped with sliding surface before this backing roll, to the bottom surface of said width of cloth material; This supporting device is adjustable, so that perhaps be positioned at the said application point said width of cloth material of position upper support before alternatively, and is being coated with on the width of cloth material freely thus; The perhaps said width of cloth material of upper support in the position of said application point, on the width of cloth material that is supported, to be coated with, wherein, backing roll, supporting device and other are used at least one of transversary of apparatus for coating and are processed by composite at least in part.
According to the utility model, composite comprises carbon fiber.
According to the utility model, supporting device is slide block or roller.
Can eliminate the risk of vibration basically through the utility model.
Description of drawings
With reference to the accompanying drawings the utility model is described, wherein:
Fig. 1 summary shows a kind of embodiment according to the utility model, wherein, width of cloth material freely is coated with.
The specific embodiment
A kind of embodiment of the curtain apparatus for coating 20 according to the utility model has been shown in Fig. 1; Wherein be provided with the coating curtain 3 that flows downward from the feed boss 2 that is positioned on the nozzle unit 1; With on the position 8 of width of cloth material free-running operation, the surface of width of cloth material W to be coated is applied.The supporting member of Reference numeral 21 expression nozzle units.Reference numeral 4 expressions are used to remove the device of the boundary layer air of introducing with width of cloth material W.Reference numeral 12 and the outside deflector roll of 13 expressions get into apparatus for coating in order to guiding width of cloth material, and from apparatus for coating, come out.
Curtain painting equipment according to the utility model comprises the roller of being processed by composite 6, and this roller has less relatively diameter, and is arranged on the position of application point 8 back, with supporting fiber web W.The roller that this is processed by composite except the roll structure of being processed by composite fully, can also partly have composite construction basically, wherein, for example, only is made up of composite outer cover, and end construction then for example is formed from steel together with axle bolt.Can roller 6 be arranged on the different points, so that for example can change width of cloth material W and be coated with the coating angle between the door curtain made of cloth 3.In addition, this equipment also comprises adjustable supporting device 5, and this supporting device is fixed on the beam type parts 11 that constitute the lateral support structure along the horizontal direction with respect to width of cloth material.Adjustable supporting device is provided with movably, it perhaps is being positioned on the application point 8 suitable position before alternatively, thereby that kind as shown in Figure 1 is being coated with freely on the width of cloth material; Perhaps on the position of application point 8, the width of cloth material that is supported is coated with.In addition, in order to change the coating angle, preferably can adjust the position of supporting device with the mode of expectation.Can also be provided with to move roller 6 according to what apply the angle in case of necessity.Preferred supporting device 5 also is made up of composite with beam type parts 11 at least in part.Supporting device 5 is constituted with respect to the sliding surface that is positioned on the width of cloth material bottom surface along width of cloth material traffic direction agley, and in addition, sliding surface is preferably arc.Supporting device 5 can also be made up of roller.Preferred other transversary (as nozzle unit 1, be used for nozzle unit supporting member 21, be used for the ventilating opening 41 of boundary layer air and on coating cloth deck, possibly be positioned at after the backing roll and/or supporting device 5 one or more deflector rolls before) partly constitute by composite.
Composite or compound material preferably contain carbon fiber.Certainly, this composite can also comprise other materials or material.
Claims (4)
1. curtain apparatus for coating that is used for paper web/board web material; Have and be arranged on the following supporting device of width of cloth material (W) to be coated; Be arranged on after the application point and have backing roll (6) than minor diameter; Be arranged on the supporting device (5) that supports and be equipped with sliding surface before this backing roll, to the bottom surface of said width of cloth material; Said supporting device (5) is adjustable, so that perhaps be positioned at said application point (8) the said width of cloth material of position upper support before (W) alternatively, and is being coated with on the width of cloth material freely thus; Perhaps at the said width of cloth material of the position upper support of said application point (8) (W); On the width of cloth material that is supported, to be coated with; It is characterized in that said backing roll (6), said supporting device (5) and other are used at least one of transversary of said apparatus for coating and are processed by composite at least in part.
2. curtain apparatus for coating as claimed in claim 1 is characterized in that said composite comprises carbon fiber.
3. according to claim 1 or claim 2 curtain apparatus for coating is characterized in that said supporting device (5) is a slide block.
4. according to claim 1 or claim 2 curtain apparatus for coating is characterized in that said supporting device is a roller.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FI20100223U FI8945U1 (en) | 2010-05-07 | 2010-05-07 | Paper / board web curtain coating equipment |
| FIU20100223 | 2010-05-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202175889U true CN202175889U (en) | 2012-03-28 |
Family
ID=42234395
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201445930U Expired - Fee Related CN202175889U (en) | 2010-05-07 | 2011-05-06 | Curtain coating device for paper web or paperboard web |
Country Status (4)
| Country | Link |
|---|---|
| CN (1) | CN202175889U (en) |
| AT (1) | AT12533U1 (en) |
| DE (1) | DE202011005447U1 (en) |
| FI (1) | FI8945U1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108620277A (en) * | 2017-03-17 | 2018-10-09 | 株式会社理光 | Curtain coating unit and curtain painting method |
| CN113564963A (en) * | 2021-08-18 | 2021-10-29 | 河南大指造纸装备集成工程有限公司 | Thermal deformation prevention coating feeding device |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI115546B (en) * | 2002-09-20 | 2005-05-31 | Metso Paper Inc | Procedure for changing the driving conditions and arrangements of a curtain paver applying this procedure |
| JP2005161152A (en) * | 2003-12-01 | 2005-06-23 | Voith Paper Patent Gmbh | Coater |
| DE102008040405A1 (en) * | 2008-07-15 | 2010-01-21 | Voith Patent Gmbh | Curtain-coating unit for coating a moving paper, cardboard or other fiber web with fluid to pasty coating medium, comprises a curtain coating head arranged above the fiber material web for obtaining single or multi-layered curtain |
-
2010
- 2010-05-07 FI FI20100223U patent/FI8945U1/en not_active IP Right Cessation
-
2011
- 2011-04-19 DE DE202011005447U patent/DE202011005447U1/en not_active Expired - Lifetime
- 2011-04-27 AT ATGM238/2011U patent/AT12533U1/en not_active IP Right Cessation
- 2011-05-06 CN CN2011201445930U patent/CN202175889U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108620277A (en) * | 2017-03-17 | 2018-10-09 | 株式会社理光 | Curtain coating unit and curtain painting method |
| US10792699B2 (en) | 2017-03-17 | 2020-10-06 | Ricoh Company, Ltd. | Curtain coating device and curtain coating method |
| CN113564963A (en) * | 2021-08-18 | 2021-10-29 | 河南大指造纸装备集成工程有限公司 | Thermal deformation prevention coating feeding device |
| CN113564963B (en) * | 2021-08-18 | 2024-04-19 | 河南大指造纸装备集成工程有限公司 | Coating loading attachment of thermal deformation prevention |
Also Published As
| Publication number | Publication date |
|---|---|
| AT12533U1 (en) | 2012-07-15 |
| DE202011005447U1 (en) | 2011-06-22 |
| FIU20100223U0 (en) | 2010-05-07 |
| FI8945U1 (en) | 2010-11-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120328 Termination date: 20200506 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |