CN102574147B - Curtain coating apparatus and curtain coating method - Google Patents
Curtain coating apparatus and curtain coating method Download PDFInfo
- Publication number
- CN102574147B CN102574147B CN201080038213.3A CN201080038213A CN102574147B CN 102574147 B CN102574147 B CN 102574147B CN 201080038213 A CN201080038213 A CN 201080038213A CN 102574147 B CN102574147 B CN 102574147B
- Authority
- CN
- China
- Prior art keywords
- curtain
- coating
- temperature
- head
- curtain head
- 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.)
- Active
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/30—Processes for applying liquids or other fluent materials performed by gravity only, i.e. flow coating
- B05D1/305—Curtain coating
-
- 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
-
- 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
- B05C11/1039—Recovery of excess liquid or other fluent material; Controlling means therefor
-
- 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
- B05C11/1042—Storage, supply or control of liquid or other fluent material; Recovery of excess liquid or other fluent material provided with means for heating or cooling the liquid or other fluent material in the supplying means upstream of the applying apparatus
-
- 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
- B05C15/00—Enclosures for apparatus; Booths
-
- 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
- B05C5/005—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
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2252/00—Sheets
- B05D2252/02—Sheets of indefinite length
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/04—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to gases
- B05D3/0493—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to gases using vacuum
Abstract
Provided are a curtain coating apparatus and a curtain coating method for supplying a curtain film of paint on a surface of a delivered web so as to coat paint on the surface of the web, said apparatus and method enabling reduction of the energy consumed for the coating operation, a marked decrease in the apparatus investment, and improvement in the coating quality. The curtain-coating apparatus applies the paint on the surface of the web by treating the paint with a vacuum defoaming device, supplying the treated paint to a curtain head in order to form a curtain film of the paint by the curtain head, and applying the curtain film onto a surface of the delivered web, wherein the curtain-coating apparatus is characterized in that a heating device is installed in a pipeline for feeding the paint from the vacuum defoaming device to the curtain head for heating the paint flowing through the pipeline to a temperature approximate to the temperature of the curtain head. The curtain-coating method applies the paint on the surface of the web by treating the paint with a vacuum defoaming device, supplying the treated paint to a curtain head in order to form a curtain film of the paint by the curtain head, and applying the curtain film onto a surface of the delivered web, wherein the curtain-coating method is characterized in that the paint supplied from the vacuum defoaming device to the curtain head is heated to a temperature approximate to the temperature of the curtain head.
Description
Technical field
The present invention relates to a kind of roll web (web) surface supply coating curtain type membrane to transporting, toward curtain applying device and the curtain coating method of above-mentioned web surfaces applying coatings.
Background technology
Such as, as one of device toward roll web (base material) surface application thermo colour, manufacture heat-sensitive papers etc. such as coating material paper, provide the following curtain applying device formed, from the curtain head of the chamber of the band nozzle of formation coating curtain type membrane, to the curtain type membrane of the web surfaces supply coating transported, thus at above-mentioned web surfaces applying coatings (for example, referring to patent document 1).
Fig. 5 represents an existing routine curtain applying device, this curtain applying device A has the service tank Ts storing the coating C supplied via pipe arrangement h, be stored in coating C in this service tank Ts via the pipe arrangement a which is provided with pump P1, supply to vacuum type defoaming device Da, the coating C implementing deaeration process in this vacuum type defoaming device supplies to curtain head H via the pipe arrangement b which is provided with pump P2.
Above-mentioned curtain head H is configured in above the roll web W of transport, as shown in Figure 6, possess head H h and spray nozzle part Hn, head H h longitudinally (length direction) extended coating supply road Hp, longitudinally formed at spray nozzle part Hn and supply road Hp with coating and be communicated with and the slit Hs opened downwards.
To the coating C that the coating supply road Hp of above-mentioned curtain head H supplies, by slit Hs, thus, form the curtain curtain V launched along roll web W horizontal (width), from the curtain type membrane V of curtain head H to the roll web W surface supply coating C transported as shown by arrow F, thus coating C by continuously coating in roll web W surface.
Fig. 7 represents the curtain head of other modes, this curtain head H ' possesses head H h ' and spray nozzle part Hn ', extend longitudinally at head H h ' and coating supply road Hp ' is set, is longitudinally formed at spray nozzle part Hn ' and to supply road HP ' with coating and be communicated with and the slit Hs ' opened upward.
Coating to above-mentioned curtain head H ' supplies the coating C of road Hp ' supply by after slit Hs ', flow down through spigot surface Hg ', thus, form the curtain curtain V along roll web W horizontal spreading, from the curtain type membrane V of curtain head H ' to the roll web W surface supply coating C transported as shown by arrow F, thus coating C by continuously coating in roll web W surface.
Further, below about adopting the curtain applying device of curtain head H shown in Fig. 6 to be described, and in the curtain applying device adopting curtain head H ' shown in Fig. 7 certainly too.
As shown in Figure 5, above roll web W, configure curtain head H, and arrange recovering tray I below roll web W, these curtain head H and recovering tray I are housed in the heat-insulating room R inside of transporting line setting along above-mentioned roll web W.
On the above-mentioned heat-insulating room R top being made up of periphery wall heat-barrier material, air duct Ad is set, cold wind from air conditioner (air-conditioning) Ac is admitted to air duct Ad by Air Blast fan Af, utilize the cold wind (arrow W, W...) blown out from this air duct Ad, carry out the cooling of above-mentioned curtain head H.
On the other hand, in above-mentioned heat-insulating room R, carry out in coating process to roll web W, the coating C part likely comprising bubble flowed out from above-mentioned curtain head H top is discharged to recovering tray I as shown in arrow v, and the coating C being stored in above-mentioned recovering tray I is stored in collection box Tr via pipe arrangement d.
The coating C be stored in above-mentioned collection box Tr supplies to easy centrifugal defoaming device Db via the pipe arrangement e which is provided with pump P3, carry out deaeration process in this centrifugal defoaming device Db after, send into service tank Ts via pipe arrangement f, below repeat the circulation that service tank Ts → vacuum type defoaming device Da → curtain head H → recovering tray I → collection box Tr → centrifugal defoaming device Db → service tank Ts is such.
At this, in above-mentioned curtain applying device A, utilize air conditioner (air-conditioning) Ac to cool the curtain head H being housed in heat-insulating room R, and the coating quality that its object is to describe in detail as follows improve.
That is, in curtain applying device A as above, use the thermals source such as dryer on a production line, thus when not carrying out heat-insulating room R and cooling, curtain head H is heated to about 30 DEG C ~ 40 DEG C.
On the other hand, to the temperature of coating C of curtain head H supply through vacuum type defoaming device Da, thus usually low than environment temperature about 20 DEG C are become.
In vacuum type defoaming device Da, be that coating C is dropped in the container of the very low pressure of about 15 ~ 50Torr, thus, if temperature height can cause boiling, therefore coating C must be cooled to about 20 DEG C, thus the coating C temperature after deaeration is also about 20 DEG C.Reason is, utilizes the cooling phenomenon that the heat insulation expansion in deaeration causes, and after deaeration, the temperature of coating C is than low before deaeration.
Thus the unreasonable situation of existence is if do not carry out the cooling of curtain head H, be exactly the coating C to the curtain head H of about 30 DEG C ~ 40 DEG C supply about 20 DEG C, due to the temperature difference with this coating C, curtain head H causes thermal deformation.
Particularly, due to the change width of slit Hs on spray nozzle part Hn, coating C flow on curtain curtain V or change along with the process of time, or transversely uneven at roll web W, cause the variation of coating amount (coating C is relative to the quantity delivered of roll web W surface), thus, likely cause the remarkable reduction applying quality.
For this reason, in above-mentioned existing curtain applying device A, the formation adopted is that curtain head H is housed in heat-insulating room R, air conditioner (air-conditioning) Ac is utilized to cool, make curtain head H identical with the temperature of coating C thus, and then the distortion of slit Hs on above-mentioned curtain head H, particularly spray nozzle part Hn is prevented trouble before it happens, suppress the reduction of coating quality.
Prior art document
Patent document 1:JP JP 2001-18526 publication
But, described above in order to prevent coating deterioration from cooling in the existing curtain applying device A of curtain head H, can produce as the following Railway Project described in detail.
That is, the unreasonable situation existed in existing curtain applying device A is, in order to cool the curtain head H being housed in heat-insulating room R, and to heat-insulating room R inside supply cold wind, thus, owing to colliding with this cold wind, and coating curtain V is swung, thus, cause applying bad to roll web W.
In addition, due to cooling curtain head H, thus, the water vapor condensation of ambient air, at curtain head H Surface Creation dew, this dew drops on the roll web W in coating process, and likely produce coating bad, eliminate this unreasonable situation, must by more than the air dewetting in heat-insulating room R to necessity.
Have again, in order to cool curtain head H, and cool the air supplied in heat-insulating room R, or in order to prevent to curtain head H condensation, and the air in heat-insulating room R is dehumidified, not only need a lot of energy, but also need the various relevant devices comprising air-conditioning Ac, Air Blast fan Af, air duct Ad and heat-insulating room R as mentioned above, thus, unavoidably need very large equipment to invest so unreasonable situation.
Summary of the invention
In view of above-mentioned present situation, the object of the present invention is to provide and a kind ofly can cut down the energy ezpenditure relevant with applying operation and the significantly reduction of equipment investment can be realized, can realize applying curtain applying device and curtain coating method that quality improves simultaneously.
To achieve these goals, curtain applying device involved by first invention, the coating processed in vacuum type defoaming device supplies to curtain head by it, by the curtain type membrane of the coating formed by this curtain head to the web surfaces supply of transporting, thus, at above-mentioned web surfaces applying coatings, the feature of this curtain applying device is, be provided with heater at the pipe arrangement supplying coating from vacuum type defoaming device to curtain head, the coating material temperature flow through be heated to the temperature approximate with curtain head in this pipe arrangement.
Curtain applying device involved by second invention, on the basis of the curtain applying device involved by the first invention, it is characterized in that, being set in being undertaken heating by heater in the temperature range of curtain head temperature ± 5 DEG C to the coating material temperature of curtain head supply.
Curtain applying device involved by 3rd invention, on the basis of the curtain applying device involved by the first invention, it is characterized in that possessing the temperature sensor of detection curtain head temperature and control heater action with the control device making the coating material temperature to curtain head supply be heated to the temperature be similar to curtain head according to the temperature that temperature sensor detects.
Curtain coating method involved by 4th invention, the coating processed in vacuum type defoaming device supplies to curtain head by it, by the curtain type membrane of the coating formed by this curtain head to the web surfaces supply of transporting, thus, at above-mentioned web surfaces applying coatings, the feature of this curtain coating method is, utilizes heater by paint heating from vacuum type defoaming device to curtain head that supply to the temperature approximate with curtain head.
Curtain coating method involved by 5th invention, on the basis of the curtain coating method of the 4th invention, is set in being undertaken heating by heater in the temperature range of curtain head temperature ± 5 DEG C to the coating material temperature of curtain head supply.
Curtain coating method involved by 6th invention, on the basis of the curtain coating method involved by the 4th invention, it is characterized in that, control heater action according to the temperature of curtain head and be heated to the temperature approximate with curtain head to make the coating material temperature to curtain head supply.
Invention effect
Curtain applying device involved by first invention, by the heater arranged at the pipe arrangement supplying coating from vacuum type defoaming device to curtain head, the coating material temperature flowing through this pipe arrangement is heated to the temperature approximate with curtain head, need not force thus to cool above-mentioned curtain head, also can suppress the temperature difference of this curtain head and coating.
So, suppress the temperature difference of curtain head and coating, and the curtain type membrane of coating can not swing due to the air-supply brought along with cooling, thus can realize applying increasing substantially of quality.
Further, do not need all equipment cooling above-mentioned curtain head, also can reduce the equipment investment that the setting along with above-mentioned cooling device brings, what can also realize bringing along with coating operation catabioticly significantly cuts down simultaneously.
Curtain applying device involved by second invention, the coating material temperature to curtain head supply is made to be set in the temperature range of curtain head temperature ± 5 DEG C by being undertaken heating by heater, the temperature difference of curtain head and coating can be suppressed thus to make it to reduce, the distortion of the curtain head caused because said temperature is poor can be prevented, and then can realize applying increasing substantially of quality.
Curtain applying device involved by 3rd invention, the temperature of the curtain head that control device detects according to temperature sensor controls heater action, to make the heating temperatures of coating to the temperature approximate with curtain head, thus, the temperature difference of curtain head and coating can be suppressed to make it little as far as possible, and then the distortion of the curtain head caused because said temperature is poor is prevented trouble before it happens, can realize applying increasing substantially of quality.
Curtain coating method involved by 4th invention, utilize the heater being arranged on the pipe arrangement supplying coating from vacuum type defoaming device to curtain head, the coating material temperature flowing through this pipe arrangement is heated to the temperature approximate with curtain head, need not force thus to cool above-mentioned curtain head, also can suppress the temperature difference of this curtain head and coating as much as possible.
So, while suppression curtain head and coating material temperature difference, the curtain type membrane of coating can not swing due to the air-supply brought along with cooling, thus can realize applying increasing substantially of quality.
Further, do not need all equipment cooling above-mentioned curtain head, also can reduce the equipment investment that the setting along with above-mentioned cooling device brings, what can also realize bringing along with coating operation catabioticly significantly cuts down simultaneously.
Curtain coating method involved by 5th invention, make the coating material temperature to curtain head supply be set in the temperature range of curtain head temperature ± 5 DEG C by being undertaken heating by heater, the temperature difference of curtain head and coating can be suppressed thus to make it to reduce, the distortion of the curtain head caused because said temperature is poor can be prevented, and then can realize applying increasing substantially of quality.
Curtain coating method involved by 6th invention, according to the temperature that temperature sensor detects, control heater action, to make the heating temperatures of the coating supplied to curtain head to the temperature approximate with curtain head, thus, the temperature difference of curtain head and coating can be suppressed to make it little as far as possible, and then the distortion of the curtain head caused because said temperature is poor is prevented trouble before it happens, can realize applying increasing substantially of quality.
Accompanying drawing explanation
Fig. 1 is the overall schematic representing curtain applying device first embodiment of the present invention.
Fig. 2 is the overall schematic representing curtain applying device second embodiment of the present invention.
Fig. 3 is the overall schematic representing curtain applying device the 3rd embodiment of the present invention.
Fig. 4 is the overall schematic representing curtain applying device the 4th embodiment of the present invention.
Fig. 5 is the overall schematic representing existing curtain applying device.
Fig. 6 (a) is the front schematic view representing curtain head, and (b) is the b-b line sectional view represented in curtain head cross section (a).
Fig. 7 is the sectional view representing other mode curtain head.
Detailed description of the invention
Below, with reference to the accompanying drawing representing embodiment, curtain applying device of the present invention and curtain coating method are described in detail.
Fig. 1 represents the first embodiment of curtain applying device of the present invention, and the curtain applying device 1 of this embodiment is the device used in manufacturing toward the heat-sensitive paper of roll web (base material) the surface application thermo colours such as coating material paper.
Above-mentioned curtain applying device 1 has the service tank 2 of the coating C that storage supplies via pipe arrangement 1a, be stored in the coating C in this service tank 2, supply to vacuum type defoaming device 3 via the pipe arrangement 1b which is provided with pump P1, in this vacuum type defoaming device 3, implement the coating C of deaeration process, via the pipe arrangement 1c which is provided with pump P2 and aftermentioned heater 10, supply to curtain head 4.
Above-mentioned curtain head 4 is configured in the top of the roll web W of transport, possess not shown head and spray nozzle part, extend longitudinally at head and coating supply road is set, longitudinally formed at spray nozzle part and to supply road with coating and be communicated with and slit open downwards, do not have anything to change with curtain head H existing shown in Fig. 6.
The coating C supplied to above-mentioned curtain head 4 is same with the coating C supplied to curtain figure H existing shown in Fig. 6, form the curtain curtain V launched along roll web W horizontal (width), from curtain head 4 to the curtain type membrane V of the roll web W surface supply coating transported, thus to roll web W surface applying coatings C continuously.
As mentioned above, configure curtain head 4 above roll web W, on the other hand, arrange recovering tray 5 in the below of roll web W, it is inner that these curtain head 4 and recovering tray 5 are housed in the room 6 that the transport line along above-mentioned roll web W arranges.
The setting of above-mentioned room 6 is blown into wind in order to stop from outside, to make the curtain type membrane V of the coating formed in curtain head 4 rock, adopt the simple and easy formation of material of the cheapnesss such as such as vinyl plate, thus equipment investment is extremely cheap.
In above-mentioned room 6, the coating C part likely comprising bubble flowed out is discharged to the recovering tray 5 shown in arrow v, put aside and be stored in collection box 7 via pipe arrangement 1d at the coating C of above-mentioned recovering tray 5 in roll web coating process from above-mentioned curtain head 4 top.
The coating C be stored in above-mentioned collection box 7 supplies to easy centrifugal defoaming device 8 via the pipe arrangement 1e which is provided with pump P3, carry out deaeration process in this centrifugal defoaming device 8 after, send into service tank 2 via pipe arrangement 1f, below repeat the circulation that service tank 2 → vacuum type defoaming device 3 → curtain head 4 → recovering tray 5 → collection box 7 → centrifugal defoaming device 8 → service tank 2 is such.
And above-mentioned curtain applying device 1 uses the thermals source such as dryer on a production line, thus curtain head 4 is in the state being heated to about 30 DEG C ~ 40 DEG C.
On the other hand, from the coating C that vacuum defoaming device 3 supplies to curtain head 4 via pipe arrangement 1c, utilize the heater 10 being arranged on above-mentioned pipe arrangement 1c, be heated to the temperature approximate with above-mentioned curtain head 4.
Namely, above-mentioned heater 10 is by the coating C heating temperatures of circulation pipe arrangement 1c to the temperature approximate with curtain head 4, and specifically, its formation utilizes sleeve pipe around pipe arrangement 1c, to above-mentioned thermal medium such as inside pipe casing supply hot blast, hot water etc., thus above-mentioned coating C is heated to proper temperature.
Further, in above-mentioned heater 10, in order to increase the heat-conducting area of pipe arrangement 1c and thermal medium (hot blast, hot water), and the formation supplying thermal medium around the pipe arrangement 1c of synform curl is adopted also to be effective.
In addition, as the concrete formation of above-mentioned heater 10, except using except hot blast, hot water etc. as mentioned above, can also adopt and arrange the various formation such as electrothermal heater, lamp heater around pipe arrangement 1c, this is indubitable.
According to curtain applying device 1 and the curtain coating method of embodiment described above, the coating C supplied by subtend curtain head 4 is heated, suppress the temperature difference of this coating C and curtain head 4 thus, thus, the thermal deformation of the curtain head 4 caused because said temperature is poor is prevented trouble before it happens, suppress the coating amount variation that roll web W is applied, thus, the raising applying quality can be realized.
In addition, according to the formation of embodiment described above, heating coating C, suppress the temperature difference of itself and curtain head 4, in other words, the formation (with reference to Fig. 5) of cooling curtain head need not be adopted as existing, just can suppress the temperature difference of above-mentioned curtain head 4 and coating C, therefore, the curtain type membrane V that there is not coating C owing to the problem such as to swing carelessly along with cooling the air-supply that brings, and then can realize applying increasing substantially of quality.
In addition, in the formation of above-described embodiment, owing to not cooling curtain head 4, existing curtain applying device (with reference to Fig. 5) as cooling curtain head thus can not be caused like that due to the unreasonable situation of " dew that the water vapor condensation of ambient air, curtain head surface produce drop in coating process roll web W produces thus apply bad " etc.
In addition, in the formation of embodiment, owing to not cooling curtain head 4, thus also need not dehumidify to prevent the condensation of curtain head, the all equipment cooling curtain head is not needed yet, simultaneously, the heater 10 of the present embodiment is compared with the existing cooling device (with reference to Fig. 5) utilizing cold wind, as long as small-sized and little required heat, thus, can reduce the equipment investment formed involved by curtain applying device 1, what can also realize bringing along with coating operation catabioticly significantly cuts down simultaneously.
Also have, in above-described embodiment, in order to suppress to heat coating C with the temperature difference of curtain head 4, in other words, existing curtain applying device is that cooling curtain head makes the temperature of coating C be about 20 DEG C, in contrast, be coating C is heated to about 35 DEG C, thus compared with existing formation in the present embodiment, the viscosity of coating C declines, good fluidity, can smooth and easyly stretch, and thus can realize the action effect that coating quality increases substantially.
And when utilizing heater 10 to heat coating C, the actual temperature of the curtain head 4 of supply coating C is held by observation in advance, be heated to by above-mentioned coating C in the temperature range of temperature ± 5 DEG C of temperature, the preferably curtain head 4 be similar to as far as possible with this actual temperature, such formation is extremely effective.
As mentioned above, undertaken heating by utilizing heater 10 and the temperature of the coating C supplied to curtain head 4 is set in the temperature range of temperature ± 5 DEG C of curtain head 4, curtain head 4 can be suppressed thus to make it to reduce with the temperature difference of coating C, the distortion of the curtain head 4 caused because said temperature is poor can be prevented, and then the significantly raising applying quality can be realized.
Also have, when the temperature of coating C is significantly higher than curtain head 4, the coating C of dry solidification can be attached to spray nozzle part, scratch curtain type membrane V, applicator surface produces the defect etc. of strip form, consider these situations, as the temperature of the coating C supplied to curtain head 4, it would be desirable be set as from relative to curtain head 4 about-5 DEG C temperature to the temperature slightly lower than curtain head 4, be in other words no more than the scope of curtain head 4.
Fig. 2 represents the second embodiment of curtain applying device of the present invention, the coating C implementing deaeration process in vacuum type defoaming device 3 supplies to curtain head 4 via the pipe arrangement 1g which is provided with pump P2 by the curtain applying device 1A of this embodiment, this pipe arrangement 1g, to guarantee for the purpose of total length, forms helical form.
At this, the indoor of the industrial building of curtain applying device 1A are set, owing to using the thermals source such as foregoing dryer, thus the environment temperature of about 30 DEG C ~ 40 DEG C is reached, the coating C supplied to curtain head 4 via pipe arrangement 1g from vacuum type defoaming device 3, during flowing through and forming the above-mentioned pipe arrangement 1g of helical form, utilizes the environment temperature in industrial building and is heated.
That is, form spiral helicine pipe arrangement 1g described above and form the heater being thermal source with the environment temperature in industrial building, coating C by this pipe arrangement 1g, thus is heated to the temperature approximate with the curtain head 4 be exposed at this industrial building environment temperature.
Also have, the formation of above-mentioned curtain applying device 1A is except forming spiral helicine pipe arrangement 1g, substantially identical with the curtain applying device 1 of the first embodiment, therefore be accompanied by the symbol identical with Fig. 1 to the important document that curtain applying device 1 has a phase same-action in Fig. 2, omit detailed description thus.
According to the formation of the second embodiment described above, same with the curtain applying device of the first embodiment and curtain coating method, the catabiotic reduction relevant to applying operation and the significantly reduction of equipment investment can being realized, the raising applying quality can be realized simultaneously.
Fig. 3 represents the 3rd embodiment of curtain applying device of the present invention, the coating C implementing deaeration process in vacuum type defoaming device 3 supplies to storage bin 9 via the pipe arrangement 1h which is provided with pump P2 by the curtain applying device 1B of this embodiment, and the coating C being stored in this storage bin 9 supplies to curtain head 4 via pipe arrangement 1i.
At this, the indoor of the industrial building of curtain applying device 1A are set, owing to using the thermals source such as foregoing dryer, thus the environment temperature of about 30 DEG C ~ 40 DEG C is reached, thus, the coating C supplied to storage bin 9 via pipe arrangement 1h from vacuum type defoaming device 3, during being temporarily trapped in this storage bin 9, utilizing the environment temperature in industrial building and is heated.
Namely, as mentioned above to store the storage bin 9 from arranging for the purpose of the coating C of vacuum type defoaming device 3, form the heater being thermal source with the environment temperature in industrial building, coating C is detained in above-mentioned storage bin 9, thus, the temperature that the curtain head 4 be heated to and be exposed at this industrial building environment temperature is approximate, supplies to above-mentioned curtain head 4 via pipe arrangement 1i.
Also have, the formation of above-mentioned curtain applying device 1B is except storage bin 9 and pipe arrangement 1h, 1i, substantially identical with the curtain applying device 1 of the first embodiment, therefore be accompanied by the symbol identical with Fig. 1 to the important document that curtain applying device 1 has a phase same-action in Fig. 3, omit detailed description thus.
According to the formation of the 3rd embodiment described above, same with the curtain applying device of the first embodiment and curtain coating method, the catabiotic reduction relevant to applying operation and the significantly reduction of equipment investment can being realized, the raising applying quality can be realized simultaneously.
Fig. 4 represents the 4th embodiment of curtain applying device of the present invention, and the curtain applying device 1 ' of this embodiment possesses the temperature sensor S detecting curtain head 4 ' temperature and the control device 100 ' controlling heater 10 ' action according to the temperature that this temperature sensor S detects.
Said temperature sensor S is arranged on the appropriate site that the head of curtain head 4 ' or spray nozzle part etc. can measure curtain head 4 actual temperature, and the detection signal exported from this temperature sensor S is input to control device 100 '.
In above-mentioned control device 100 ', according to the temperature of the curtain head 4 ' that temperature sensor S detects, control the action (FEEDBACK CONTROL) of heater 10 ', to make the heating temperatures of coating C supply to curtain head 4 ' to the temperature be similar to above-mentioned curtain head 4 '.
At this, the formation of above-mentioned heater 10 ' is identical with the heater 10 shown in Fig. 1, utilize sleeve pipe around pipe arrangement 1c ' surrounding, to above-mentioned thermal medium such as inside pipe casing supply hot blast, hot water etc., thus above-mentioned coating C is heated to preference temperature, it is formed is the instruction of basis from above-mentioned control device 100 ', adjusts the quantity delivered, temperature etc. of the thermal medium to sleeve pipe supply, thus coating C is heated to the temperature approximate with curtain head 4 '.
Also have, the formation of above-mentioned curtain applying device 1 ' except sensor S and control device 100 ', substantially identical with the curtain applying device 1 of the first embodiment, therefore, about the parts with the constitutive requirements of curtain applying device 1 in the constitutive requirements of curtain applying device 1 ' with phase same-action, be accompanied by the symbol identical with Fig. 1 in Fig. 4 ' (mark), omit the detailed description to curtain head applying device 1 ' thus.
According to the formation of embodiment described above, same with curtain applying device embodiment illustrated in fig. 1 and curtain coating method, the catabiotic reduction relevant to applying operation and the significantly reduction of equipment investment can being realized, the raising applying quality can be realized simultaneously.
Simultaneously, according to the formation of above-described embodiment, according to the temperature of the curtain head 4 ' that temperature sensor S detects, control device 100 ' is utilized to control the action of heater 10 ', by the heating temperatures of coating C to the temperature approximate with curtain head 4 ', curtain head 4 ' and the temperature difference of coating C can be suppressed, make it little as far as possible, and then the distortion of the curtain head 4 ' caused by said temperature difference can be prevented trouble before it happens, can realize applying increasing substantially of quality.
In a word, in the formation of above-described embodiment, even if heater 10 ' adopts the formation arranging electrothermal heater, lamp heater etc. around pipe arrangement 1c ', also be the instruction according to carrying out self-control device 100 ', adjust to electrothermal heater, lamp heater give electricity, coating C can be adjusted to the temperature approximate with curtain head 4 ' thus, this is indubitable.
Also have, curtain applying device 1 shown in Fig. 1, the curtain applying device 1 ' shown in curtain applying device 1B and Fig. 4 shown in curtain applying device 1A, Fig. 3 shown in Fig. 2 are all the manufactures for heat-sensitive paper, and curtain applying device of the present invention and curtain coating method are that this is indubitable in Production Example as all can effectively applicable technology when art paper, coated paper etc. or the various paper such as impact paper, cardboard.
In addition, curtain applying device 1 shown in Fig. 1, the curtain applying device 1 ' shown in curtain applying device 1B and Fig. 4 shown in curtain applying device 1A, Fig. 3 shown in Fig. 2 are all the devices applying 1 coating toward roll web W surface, and curtain applying device of the present invention and curtain coating method are supplying to the web surfaces of transporting the 2 laminar coating curtain type membranes be made up of the first coating curtain type membrane and the second curtain type membrane, and also can effectively applicable technology in the situation of overlapping first coating and the second applying coating 2 layers, this is indubitable.
Symbol description
1,1A, 1B, 1 '-curtain applying device
1a, 1b, 1c, 1d, 1e, 1f, 1g, 1h, 1i, 1a ', 1b ', 1c ', 1d ', 1e ', 1f "-pipe arrangement
2,2 '-service tank
3,3 '-vacuum type defoaming device
4,4 '-curtain head
5,5 '-recovering tray
6,6 '-room
7,7 '-collection box
8,8 '-centrifugal defoaming device
9-storage bin
10 '-heater
100 '-control device
C-coating
V-curtain type membrane
W-roll web
Claims (2)
1. a curtain applying device, the coating processed in vacuum type defoaming device is supplied to curtain head, by the curtain type membrane of the coating formed by this curtain head to being transported the web surfaces supply come, and at described web surfaces applying coatings, it is characterized in that
Being provided with heater from described vacuum type defoaming device to the pipe arrangement of described curtain head supply coating, the coating material temperature flow through is heated to the temperature approximate with described curtain head in this pipe arrangement;
Undertaken heating by described heater and be set in the coating material temperature that described curtain head supplies in the temperature range of described curtain head temperature ± 5 DEG C;
Described curtain coating unit also comprises:
Temperature sensor, it detects described curtain head temperature, and
Control device, it controls described heater action according to the temperature that described temperature sensor detects and is heated to the temperature approximate with described curtain head to make the coating material temperature supplied to described curtain head.
2. a curtain coating method, the coating processed in vacuum type defoaming device is supplied to curtain head, by the curtain type membrane of the coating formed by this curtain head to being transported the web surfaces supply come, and at described web surfaces applying coatings, it is characterized in that
Utilize heater by paint heating from described vacuum type defoaming device to described curtain head that supply to the temperature approximate with described curtain head;
Be set in being undertaken heating by described heater to the coating material temperature that described curtain head supplies in the temperature range of described curtain head temperature ± 5 DEG C;
Control described heater action according to the temperature of described curtain head and be heated to the temperature approximate with described curtain head to make the coating material temperature supplied to described curtain head.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2009200349A JP2011050817A (en) | 2009-08-31 | 2009-08-31 | Apparatus and method for curtain coating |
| JP2009-200349 | 2009-08-31 | ||
| PCT/JP2010/063495 WO2011024637A1 (en) | 2009-08-31 | 2010-08-09 | Curtain coating apparatus and curtain coating method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102574147A CN102574147A (en) | 2012-07-11 |
| CN102574147B true CN102574147B (en) | 2015-06-03 |
Family
ID=43627743
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201080038213.3A Active CN102574147B (en) | 2009-08-31 | 2010-08-09 | Curtain coating apparatus and curtain coating method |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP2474369B1 (en) |
| JP (1) | JP2011050817A (en) |
| CN (1) | CN102574147B (en) |
| WO (1) | WO2011024637A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2811068B1 (en) * | 2013-06-06 | 2019-05-08 | Valmet Technologies, Inc. | Method and arrangement for degassing treatment substance of a fiber web |
| JP6454597B2 (en) * | 2015-05-13 | 2019-01-16 | 東京応化工業株式会社 | Coating apparatus, coating system, and coating method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6497926B1 (en) * | 1999-07-07 | 2002-12-24 | Mitsubishi Paper Mills Ltd. | Method of producing information recording material |
| CN1890030A (en) * | 2003-12-17 | 2007-01-03 | 沃依特制纸专利有限责任公司 | Application device |
| CN101237943A (en) * | 2005-03-11 | 2008-08-06 | 沃依特专利有限责任公司 | Curtain applicator |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3826585B2 (en) * | 1998-10-05 | 2006-09-27 | コニカミノルタホールディングス株式会社 | Coating apparatus and coating method |
| JP2001087698A (en) * | 1999-09-22 | 2001-04-03 | Ishikawajima Harima Heavy Ind Co Ltd | Color deforming apparatus for curtain coater |
| JP2002066431A (en) * | 2000-09-01 | 2002-03-05 | Fuji Photo Film Co Ltd | Method and apparatus for preparing and defoaming coating liquid |
| JP2003170098A (en) * | 2001-12-06 | 2003-06-17 | Shimadzu Corp | Slit coater |
| DE102005027831A1 (en) * | 2005-06-16 | 2006-12-28 | Voith Patent Gmbh | Coating of a moving paper, cardboard or other fibrous material web within a machine for producing fibrous material web, comprises spraying of coating medium in form of spraying jets or droplets to the fiber web using spray coater |
| DE102007000801A1 (en) * | 2007-10-01 | 2009-04-02 | Voith Patent Gmbh | Device for applying liquid to pasty coating medium e.g. paint in the form of freely falling curtain on paper, cardboard or fibrous material web, comprises application head comprising medium-containing chamber, supply gap and outlet opening |
-
2009
- 2009-08-31 JP JP2009200349A patent/JP2011050817A/en active Pending
-
2010
- 2010-08-09 CN CN201080038213.3A patent/CN102574147B/en active Active
- 2010-08-09 EP EP10811687.2A patent/EP2474369B1/en active Active
- 2010-08-09 WO PCT/JP2010/063495 patent/WO2011024637A1/en active Application Filing
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6497926B1 (en) * | 1999-07-07 | 2002-12-24 | Mitsubishi Paper Mills Ltd. | Method of producing information recording material |
| CN1890030A (en) * | 2003-12-17 | 2007-01-03 | 沃依特制纸专利有限责任公司 | Application device |
| CN101237943A (en) * | 2005-03-11 | 2008-08-06 | 沃依特专利有限责任公司 | Curtain applicator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102574147A (en) | 2012-07-11 |
| EP2474369A1 (en) | 2012-07-11 |
| JP2011050817A (en) | 2011-03-17 |
| EP2474369A4 (en) | 2014-03-19 |
| EP2474369B1 (en) | 2019-05-01 |
| WO2011024637A1 (en) | 2011-03-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103370590B (en) | For the equipment of continuous drying coat film | |
| CN1956799B (en) | Coating process and apparatus | |
| CN102574147B (en) | Curtain coating apparatus and curtain coating method | |
| JP2000318123A (en) | Drier for flexographic and gravure printing | |
| CN103890518A (en) | Inerted plate dryer and method of drying solvent based coating | |
| EP2294022A1 (en) | Apparatus and methods of control for coolant recycling | |
| US20080157411A1 (en) | Device and Method for Humidifying an Air Flow | |
| CN103814266B (en) | Drying is applied to the method and apparatus of the fluid film of substrate | |
| JP6127723B2 (en) | Drying control system, dryer, drying control method, drying method | |
| US20170328589A1 (en) | Low dew point air dehumidification assembly | |
| CN109312541A (en) | Curtain coating mechanism | |
| TW201446331A (en) | Apparatus for thermally stabilizing an atomization device for air-painting systems | |
| CN1960853B (en) | Method and apparatus for heating plastics regions of an open end zone of a carton sleeve | |
| CN206935695U (en) | The cooling device of hot melt coating machine | |
| CN107321580A (en) | A kind of paint drying equipment for being sprayed at decorative panel | |
| JP5184980B2 (en) | Painting equipment | |
| GB2465693A (en) | Method of conditioning exterior air for a spray booth | |
| CN102658712A (en) | Drying device | |
| CN210207476U (en) | Drying device of coating machine | |
| CN209008007U (en) | Heating device | |
| CN104028437B (en) | A kind of baking oven of lithium battery coating machine and the distinguished and admirable control method of baking oven | |
| CN205991694U (en) | A kind of drying adhesive device | |
| CN102513276A (en) | Coating base material drying method and special drying device thereof | |
| CN208247460U (en) | A kind of waterproof roll film sticking apparatus | |
| CN205951110U (en) | Inner loop induced drafts and spouts wind system all |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |