CN1079704C - Multiple layer and slide die coating method and apparatus - Google Patents
Multiple layer and slide die coating method and apparatus Download PDFInfo
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- CN1079704C CN1079704C CN95192798A CN95192798A CN1079704C CN 1079704 C CN1079704 C CN 1079704C CN 95192798 A CN95192798 A CN 95192798A CN 95192798 A CN95192798 A CN 95192798A CN 1079704 C CN1079704 C CN 1079704C
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- 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
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- 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
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- 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
- B05C5/0254—Coating heads with slot-shaped outlet
Abstract
A die coating method and apparatus includes a die having an upstream bar with an upstream lip, a central bar, a downstream bar with a downstream lip, and a vacuum bar. The upstream lip is formed as a land and the first manifold bar is formed as a sharp edge. The shape of the land conforms to the shape of the surface being coated. Changing at least one of the slot heights H, the overbites O, and the convergence C can improve coating performance. The die can have a slide surface and the coating fluid can exit the die from a passageway and slides along the slide surface to form a continuous coating bead between the manifold bar sharp edge, the upstream die lip, and the surface being coated. The die can include several passageways for coating multiple layers.
Description
Technical field
The present invention relates to painting method.More particularly, the present invention relates to a kind of painting method that uses mould.
Background of invention
United States Patent (USP) № 2,681,294 has disclosed a kind of vacuum method, and this method is used for stablizing the coating stream of the metering application system of directly extruding and sliding-type.This stabilization has improved the coating ability of these systems.Yet, go to provide some coated product needed thin wet layer even these systems use the very low liquid of viscosity also to lack enough overall capacities.
United States Patent (USP) № 2,761,791 discloses the extruding and the slip coating machine of various ways, with these coating machines multiple coating liquid is coated on the thin slice that moves to overlapping multilayer simultaneously.Yet under the situation in desired thin slice translational speed and coating gap, these application systems lack the thickness that enough overall performances remove to keep the required how wet layer of some coated product.United States Patent (USP) № 5,256,357 has disclosed the multiple coating mould that edge, an a kind of slit therein owes approach.The approach of owing on one of in two edges has been improved coating situation under some situation.
United States Patent (USP) № 4,445,458 have disclosed a kind of extrusion pressing type applies mould, and this coating mould has an oblique shrinkage surface (beveled draw-down surface), apply a boundary force in order to downstream, and reduce the maintenance coating and flow necessary vacuum capacity coating stream.The reduction of vacuum makes chatter fault and coating striped or ripple drop to minimum.In order to improve coating quality, it all must be best with moving apart thin slice (indentation part) position (underhang) (overhang) that thin slice (ledge) is shifted to along the slit axis direction in the obtuse angle of the relative slit of skewed surface axis and inclined-plane.Optimal parameter can reach and apply the required high quality of emulsion.But the ability that lacks the required thin layer performance of some product.
United States Patent (USP) № 3,413,143 has disclosed a kind of mould with double slit crack, and this mould pumps into excessive coating liquid and applies the stream zone by the slit, upstream.A nearly semiliquid that enters the zone is discharged from by the slit, downstream and applies the stream zone, and remainder is coated on the mobile thin slice.The excess liq that applies in the stream has stablizing effect, and it can improve performance under the situation of not using vacuum chamber.Yet this device can not provide some coated product required performance, and the maximum rate of gap and wet thickness has only 3.
United States Patent (USP) № 4,443,504 have disclosed a kind of slip coating unit, in this device, the scope of the angle of a slidingsurface and a level reference is from 35 ° to 50 °, is 85 ° to 100 ° by the scope of an output angle that tangent plane and slidingsurface constitute with applying running roller.Can trade off in the operation within these scopes and to solve relation between the coating uniformity that the power that all is coated with from the performance of the higher fluid momentum that obtains along slidingsurface and the high liquid from the slidingsurface obtains.Yet even a vacuum chamber is arranged, this system also can't provide some coated product required performance.
What european patent application № EP552653 described is: with a low-yield fluorinated polyethylene surface coverage with apply adjacent and in its lower section the coating mould surface of sliding of stream.Covering is that 0.05 to 5.00mm place below applying the die orifice tip begins, and extends from leaving the direction that applies stream.Low-yield covering surfaces separates with the coating die orifice is most advanced and sophisticated by a naked bonding jumper.So just determined to apply the Static Contact line of stream.Low-yield covering surfaces has been eliminated the coating striped, and is convenient to clean mould.Do not mention in this patent application this method is used for the extrusion coated mould.
Fig. 1 illustrates a known coating mould 10, and it has a vacuum chamber 12 as a part of measuring application system.Coating liquid 14 accurately is supplied to mould 10 by a pump 16, to be applied on the mobile thin slice 18 by backing roll 20 supporting.Coating liquid is supplied with a manifold 24 through a passage 22, distributes by the slit 26 in the mould then to be coated on the mobile thin slice 18.As shown in Figure 2, coating liquid is through slit 26, forms a continuous coating stream 28 at upstream die orifice 30 and downstream die orifice 32 and 18 of thin slices then.Size f
1And f
2The scope that is the width of die orifice 30 and 32 is generally 0.25 to 0.76mm.Vacuum chamber 12 provides a vacuum with the stable stream that applies in the upstream that applies stream.Though is suitable in this structure of many occasions when working, and also needs a kind of mould painting method to improve the performance of known method.
Brief summary of the invention
The present invention a kind ofly is coated to a lip-deep mould coating unit to multiple coating liquid.This device comprises a mould, and the voussoir and that this mould has a up-stream module, that has the upstream die orifice to have the voussoir edge has the downstream module of downstream die orifice.The upstream die orifice has a die orifice face, and there is a sharp edge at the voussoir edge, and the downstream die orifice has a sharp edge.One first passage runs through mould between up-stream module and voussoir, a second channel runs through mould between voussoir and downstream module.First passage has first slit (slot) that is made of upstream die orifice and voussoir edge, and second channel has second slit that is made of voussoir edge and downstream die orifice.First coating liquid is discharged mould from first slit, form a continuous coating stream at upstream die orifice, voussoir edge and between to be coated on the surface that is coated with coated surface, second coating liquid is discharged mould from second slit, form a continuous coating and flow to be coated on first coating liquid between voussoir edge, downstream die orifice and coated surface.Even the raising vacuum does not have a lot of coating stream yet and flows to space between die orifice face and coated surface.
The shape of die orifice face conforms to the shape of wanting coated surface.If it is crooked being coated with the surface, that die orifice face also is crooked.Mould can also have a vacuum in coating stream upstream to flow with stable the coating.This vacuum is provided by the vacuum chamber that a vacuum piece with vacuum piece face forms.The shape of vacuum piece face also conforms to the shape on coated surface.Upstream die orifice face is identical with the radius of curvature of vacuum piece face, and they then can be the same or different with respect to the convergence that is coated with the surface.
Can improve paintability by at least one parameter that changes the slit height, cross in approach and the convergence.Slit height, mistake approach and convergence combination with one another are selected together, the edge angle of the length of die orifice face, downstream module, apply the downstream module surface in slit and select together by the mould angle of attack between the positive section of a coated lip-deep straight line and sharp edge and with the coating clearance distance combination with one another between the coated surface, wherein, described positive section is parallel with sharp edge and directly relative with sharp edge.
In another embodiment, mould comprises that one has the up-stream module of upstream die orifice, the downstream module that a separator and has the downstream die orifice.The upstream die orifice has a die orifice face, and the downstream die orifice has a sharp edge.One first passage runs through mould between up-stream module and separator, a second channel runs through mould between separator and downstream module.First passage and second channel are combined into a slit that is made of upstream die orifice and downstream die orifice.Two kinds of coating liquids pool together in the mould slit, and flow through this slit with the laminar flow form of separating, and apply stream and are transported on the coated surface thereby form one.
The method that applies with mould of the present invention comprises: make first coating liquid by first slit; Make second coating liquid by second slit; Be used in first coating liquid between upstream die orifice, voussoir edge and the coated surface and form a continuous coating stream to be coated on the surface that is coated with; And be used in voussoir edge, downstream die orifice and the surface that will apply between second coating liquid form a continuous coating stream and apply on the stream to be coated in first.Even the increase vacuum does not have a lot of coating stream yet and flows to space between die orifice face and coated surface.
The downstream module surface that method also comprises the edge angle of selecting die orifice face length degree, downstream module, apply the slit with pass through the mould angle of attack between the tangent plane P of a coated lip-deep straight line and downstream die orifice sharp edge and during with the coating clearance distance between the coated surface, their combinations with one another are selected together, and described positive section is parallel with downstream die orifice sharp edge and directly relative with it; And selecting the slit height, when crossing approach and convergence, their combinations with one another selected together.Method also is included in the upstream that applies stream and applies a vacuum with the stable technology that applies stream.
Another kind method comprises: make first coating liquid pass through first passage; Make second coating liquid pass through second channel; First coating liquid and second coating liquid pool together in the mould slit; First coating liquid and second coating liquid flow through the slit with the laminar flow form of separating, and apply stream thereby form one; Be transported on the coated surface applying stream.
The present invention a kind ofly is coated to a lip-deep mould coating unit to coating liquid.This device comprises a mould, and this mould has one to have the up-stream module of upstream die orifice, downstream module, a vacuum piece and the slidingsurface that a manifold piece, has the downstream die orifice.The upstream die orifice has a die orifice face, and the first manifold piece has a sharp edge.One first passage passes mould between manifold piece and downstream module.Coating liquid is discharged mould from this passage, and slides along slidingsurface, with at sharp edge, the upstream die orifice of manifold piece and want to form between the coated surface a continuous coating and flow.Even the increase vacuum does not have a lot of coating stream yet and flows to space between die orifice face and coated surface.The shape of die orifice face conforms to shape with coated surface.
The present invention also is a kind of coating unit that multiple coating liquid is coated to a lip-deep multilayer film.This device comprises a mould, and this mould has up-stream module, one first manifold piece, one second a manifold piece, that has the upstream die orifice to have downstream module, a vacuum piece and a slidingsurface of downstream die orifice.The upstream die orifice has a die orifice face, and the first manifold piece has a sharp edge.One first passage passes mould between the first manifold piece and the second manifold piece.First coating liquid is discharged mould from first passage, and slides along slidingsurface, with at sharp edge, the upstream die orifice of manifold piece and want to form between the coated surface a continuous coating and flow to be coated on the coated surface.One second channel passes mould between the second manifold piece and downstream module.Second coating liquid is discharged mould from second channel, and slides along slidingsurface, forming a continuous coating stream between the sharp edge of manifold piece, upstream die orifice and the coated surface, applies and flows to be coated in first.
This mould painting method of the present invention comprises: make coating liquid have the passage that the downstream module of a downstream die orifice constitutes by one by a manifold piece and that has sharp edge; And the coating liquid of discharging from this passage slides along a slidingsurface, and formation one continuous coating is flowed between the upstream die orifice that a die orifice face arranged with the sharp edge, at the manifold piece and the coated surface.Even the increase vacuum does not have a lot of coating stream yet and flows to space between die orifice face and coated surface.
This method also comprises the edge angle of the length of selecting the die orifice face, the first manifold piece and sharp edge and during with the coating clearance distance between the coated surface, their combinations with one another is selected together; And when selecting approach and convergence, their combinations with one another are selected together.
A kind of method of coated with multiple layer comprises: make one first coating liquid by 1 first manifold piece of sharp edge and the first passage that one second manifold piece constitutes be arranged by one; First coating liquid of discharging from this first passage slides along a slidingsurface, to flow in the sharp edge of manifold piece, a upstream die orifice and formation between coated surface one continuous coating, so that first coating liquid is coated on the coated surface; Make one second coating liquid by a second channel that constitutes by one second a manifold piece and a downstream module; Second coating liquid of discharging from this second channel slides along a slidingsurface, flowing in the one continuous coating of formation between the sharp edge of manifold piece, a upstream die orifice and the coated surface, thereby second coating liquid is coated on first coating liquid.
Brief Description Of Drawings
Fig. 1 is the generalized section that prior art applies mould.
Fig. 2 is the cutaway view of the amplification of the slit of Fig. 1 mould and die orifice.
Fig. 3 is the cutaway view of extrusion die of the present invention.
Fig. 4 is the cutaway view of the amplification of the slit of Fig. 3 mould and die orifice.
Fig. 5 is the cutaway view of the amplification of slit similar to Fig. 4 and die orifice.
Fig. 6 is the profile of another vacuum chamber structure.
Fig. 7 is the profile of another vacuum chamber structure.
Fig. 8 is the cutaway view of another extrusion die of the present invention.
Fig. 9 A and 9b are the cutaway views of amplification of slit, working face and the vacuum chamber of Fig. 8 mould.
Figure 10 A and 10b are the schematic diagrames of Fig. 8 mould.
Figure 11 shows the coating test result, and the extrusion die of prior art and extrusion die of the present invention performance when using 1.8 centipoise viscosity coating liquids is compared.
Figure 12 shows the comparison of result of the test when using 2.7 centipoise viscosity coating liquids.
Figure 13 is some data of coated test.
Figure 14 is the schematic diagram of extrusion coated mould of the present invention constant G/Tw line when using nine kinds of different coating liquids.
Figure 15 is the cutaway view of multilayer extrusion die of the present invention.
Figure 16 is the working face of Figure 15 mould and the cutaway view of vacuum chamber.
Figure 17 is the cutaway view of another embodiment of multilayer extrusion die.
The working face of Figure 18 view 17 moulds and the cutaway view of vacuum chamber
Figure 19 is the cutaway view that a known slip applies mould.
Figure 20 is the cutaway view that a multilayer slip of the present invention applies mould.
Figure 21 is the cutaway view of the extruding slip combination coating machine of the present invention's one multilayer.
Figure 22 is the mould cutaway view of another embodiment of the present invention.
Figure 23 is the cutaway view of a kind of multilayer form of Figure 22 mould.
Figure 24 is a kind of multilayer extruding of Figure 22 and the cutaway view of the mould that slip combines.
Describe in detail
The present invention relates to a kind of mould painting method and device, wherein, mould comprises a sharp edge and a die orifice face (land), the purpose that they is set is in order to improve performance and to make this performance the best. The shape of die orifice face is with direct The surface configuration that applies the zone of coating liquid is complementary. The die orifice face can be crooked, so as with around one the supporting The thin slice coupling that roller passes through, it also can be flat, and mates across the thin slice between running roller.
Fig. 3 shows the extrusion die 40 that the present invention has a vacuum chamber 42.Coating liquid 14 is supplied with mould 40 by a pump 46, so that be applied on the mobile thin slice 48 that is supported by a backing roll 50.Coating liquid is through passage 52 to one manifolds 54, distributes by a slit 56 then and is coated on the mobile thin slice 48.As shown in Figure 4, coating liquid 14 forms continuous coating stream (a coating bead) 58 then through slit 56 between upstream die orifice (upstream die lip) 60, downstream die orifice (downstreamdie lip) 62 and thin slice 48.Coating liquid can be a kind of in multiple liquid or other fluid.Upstream die orifice 60 is the parts in the up-stream module 64, and downstream die orifice 62 is the parts in the downstream module 66.The height in slit 56 can be by U-shaped pad control, and this pad can be made and frame is lived by brass or stainless steel.Vacuum chamber 42 applies a vacuum in the upstream that applies stream, to stablize this coating stream.
As shown in Figure 5, upstream die orifice 60 has the die orifice face 68 of a bending, and downstream die orifice 62 has a sharp edge 70.This structure has improved overall performance, thereby has surpassed the performance of the known coating machine of using mould.When the improvement of performance means operation, allow to improve web speed, increase the coating gap, adopt the higher coating liquid of viscosity, process thin wet coating.
The size of how much running parameters when Fig. 5 also shows the individual layer extruding.The length L of the bending die actinal surface 68 of up-stream module 64
1Scope from 1.6mm to 25.4mm.Preferred length L
1Be 12.7mm.The edge angle A of downstream module 66
1Scope from 20 ° to 75 °, preferably 60 °.The radius of sharp edge 70 should be from about 2 microns to 4 microns, preferably less than 10 microns.Apply the surface and the mould angle of attack A that passes through between the tangent plane P of thin slice 48 lip-deep straight lines of the downstream module 66 in slit 56
2From 60 ° to 120 °, preferably 90 ° to 95 °, for example 93 °, described positive section is parallel and directly relative with it with sharp edge 70.Apply clearance G
1It is the vertical range between sharp edge 70 and the thin slice 48.(apply clearance G
1Measure at sharp edge, but in several figure are arranged, for illustrate clear for the purpose of, shown gap is not at sharp edge.No matter G among the figure
1The position how because thin slice is crooked,, the gap always increases along with leaving sharp edge, the gap is all measured at sharp edge.)
The scope of slit height H is from 0.076mm to 3.175mm.The sharp edge 70 of crossing approach O and be downstream module 66 is towards distance or the position of thin slice 48 directions with respect to bending die actinal surface 68 downstream edges 72 on the up-stream module 64.Cross downstream edge 72 that approach also can be considered to bending die actinal surface 68 with respect to sharp edge 70, from the distance of thin slice 48 indentations (to any given coating clearance G
1).The scope of crossing approach is from 0mm to 0.51mm, and the precision (setting) of opposite end, mould slit should be within 2.5 microns.For this application system,, for example to reach the accurate uniformity of crossing approach, need the installation system of a precision.As shown in Figure 5, convergence C is that a bending die actinal surface 68 leaves and the angular displacement of the position of thin slice 48 parallel (or concentric) (with downstream edge 72 as pivot) counterclockwise.The scope of convergence is from 0 ° to 2.29 °, and the precision of opposite end, mould slit should be within 0.023 °.Slit height, mistake approach and convergence and fluid parameter such as viscosity all can influence the performance of mould coating unit and method.
From overall performance, for viscosity within the 1000 centipoise scopes and under liquid, preferably, the slit height is 0.18mm, crossing approach is 0.076mm, convergence is 0.57 °.Adopt the performance standard of other slit height and above-mentioned approaching.Viscosity on 1000 centipoises has also been found the advantage on the performance.When convergence was fixed on 0.57 °, best slit height was as follows with the combination of crossing approach:
The slit height is spent approach
0.15mm 0.071mm
0.20mm 0.082mm
0.31mm 0.100mm
0.51mm 0.130mm
In the aforesaid liquid range of viscosities, for arbitrary given convergence value, the best is cut value excessively and is directly proportional with the square root of slit height value.Similarly, for certain slit height value, the best square root of cutting the poly-degree value of value participant of crossing is inversely proportional to.
As shown in Figure 6, vacuum chamber 42 can be the integral part of up-stream module 64 or be fixed on the up-stream module 64, to obtain the accurate repeatably gas flow of vacuum system.Vacuum chamber 42 is to form with vacuum piece 74, and is connected to a vacuum source passage 80 by an available vacuum limiter 76 and a vacuum manifold 78.The vacuum piece face 82 of one bending can be the integral part of up-stream module 64, also can be a part that is fixed in the vacuum piece 74 of up-stream module 64.The radius of curvature of vacuum piece face 82 is identical with bending die actinal surface 68.Bending die actinal surface 68 is fine gindings with vacuum piece face 82, so that they are consistent each other.Like this, vacuum piece face 82 just has the identical convergence C with respect to thin slice 48 with bending die actinal surface 68.
Vacuum piece face clearance G
2Being vacuum piece face 82 and distance at vacuum piece face lower edge thin slice 48, is to apply clearance G
1, cross approach O and summation (no matter the G of the skew that causes by the convergence C of bending die actinal surface 68
1Position in the accompanying drawings how, and the gap is the lower limb of vacuum piece face and the vertical range between the thin slice always.)。When vacuum piece face clearance G
2When big, outside air will excessively enter vacuum chamber 42.Even vacuum source has enough ability compensations and keeps the specified vacuum pressure of vacuum chamber 42, the inflow of air also can reduce paintability.
In Fig. 7, vacuum piece face 82 is the parts that are connected in the vacuum piece 74 of up-stream module 64.During processing, 68 grindings of bending die actinal surface go out convergence C.Connect vacuum piece 74 then, the grinding center correct grinding vacuum piece face 82 with different makes vacuum piece face 82 parallel with thin slice 48, when having set required mistake approach, and vacuum piece face clearance G
2Equal to apply clearance G
1The length L of vacuum piece face
2Scope can be from 6.35mm to 25.4mm, preferable length L
2Be 12.7mm.The overall coat performance capability of this embodiment under the coating situation of difficulty is stronger than the embodiment of Fig. 6, but always one group of specific service condition is finish grinded it.So, apply clearance G
1Or approach O changes vacuum piece face clearance G excessively
2May depart from its original optimum value.
In Fig. 8 and 9, the up-stream module 64 of mould 40 is installed on the keeper 84 of a up-stream module, and vacuum piece 74 is installed on the keeper 86 of a vacuum piece.Bending die actinal surface 68 on the up-stream module 64 is not directly to link to each other with vacuum piece face 82 on the vacuum piece 74 each other.Vacuum chamber 42 is connected in its vacuum source by vacuum piece 74 and keeper 86.The installation of vacuum piece 74 and up-stream module 64 and location separate carries out.Can improve the performance of mould like this, obtain the gas stream of accurate repeatably vacuum system.Compare with known system, the strong construction of vacuum block system also helps to improve performance.In addition, this structure of vacuum piece 74 also can improve the performance of other known coating machine, for example the performance of slit, extruding and slip coating machine.One flexible vacuum seal bar 88 plays the effect of sealing between up-stream module 64 and vacuum piece 74.
Clearance G between vacuum piece face 82 and the thin slice 48
2Do not applied clearance G
1, cross the influence that approach O or convergence C change, during applying, sustainable its optimum value that remains on.Vacuum piece face clearance G
2Scope can be between 0.076mm and 0.508mm, clearance G
2Preferred values be 0.15mm.The position, preferable angle of vacuum piece face 82 is to be parallel to thin slice 48.
During the coating, vacuum can be regulated, to produce high-quality coat.When the web speed with 30.5 meters of the wet layer of 6 micron thickness and per minutes applied one 2 centipoise coating liquids, general vacuum was 51 millimeters of water (mm H
2O).Reduce wet layer thickness, improve viscosity or increase the higher vacuum that web speed all needs to surpass 150 millimeters of water.Compare with known system, mould of the present invention has lower gratifying minimum vacuum degree and higher gratifying maximum vacuum, in some cases, can also be with zero vacuum work, this is impossible in known system.
Figure 10 a and 10b show some position adjustment and vacuum chamber housings.Crossing the approach adjustment is that downstream module 66 is moved with respect to up-stream module 64, pricks so that thin slice is shifted to or moved apart to sharp edge 70 relative bending die actinal surfaces 68.When adjusting convergence, up-stream module 64 and downstream module 66 be together around the axis rotation of passing downstream edge 72, makes bending die actinal surface 68 leave the position that is parallel to thin slice 48 from position shown in Figure 10 or get back to the position that is parallel to thin slice 48.Applying the gap adjustment is that up-stream module 64 and downstream module 66 are moved together, and changing the distance between sharp edge 70 and the thin slice 48, and that the vacuum piece keeps on its installed part 86 is motionless, and 88 deflections of vacuum seal bar are in order to avoid air leaks during adjustment.By an end plate 90 that links to each other with the end of vacuum piece 74, make the air leaks that infilters vacuum chamber 42 from the mould end reach minimum, end plate 90 is overlapped on the end of up-stream module 64.Vacuum piece 74 is than up-stream module 64 long 0.10mm to 0.15mm, so under center conditions, the scope in the space between each end plate 90 and the up-stream module 64 is from 0.050mm to 0.075mm.
During applying, a kind of beyond thought operation characteristic has appearred.Even the increase vacuum, the coating stream that enters bending die actinal surface 68 and 48 spaces of mobile thin slice also is seldom.Compare with known extrusion coated machine like this, just can use higher vacuum, thereby provide than higher performance.Even required vacuum is very little or do not need vacuum, the present invention also has the improved performance above known system.Coating stream seldom enters bending die actinal surface 68 and means also that with the phenomenon in the space of 48 of thin slices " overflow " (" runout ") in the backing roll has nothing different to the influence of downstream coat weight and known extrusion coated machine.
Figure 11 shows the coated test result that a known extrusion die performance is compared with an extrusion die performance of the present invention.At the trial, the 1.8 centipoise coating liquids that contain organic solvent are applied on the smooth mylar sheet.Performance indications are: the minimum wet layer thickness in four different coating gaps of each application system, the speed of service is in the scope of 15 to 60 meters of per minutes.Curve A, B, C and D use the mould of known prior art, and test with the coating gap of 0.254mm, 0.203mm, 0.152mm and 0.127mm respectively.Curve E, F, G and H use a mould of the present invention and each above-mentioned coating gap.Compare with the mould of prior art, apparent, wet layer thickness of the present invention is lower.Figure 12 is that 2.7 centipoises, coating gap result of the test same as described above compare to a viscosity similar, coating liquid.Proved again feature performance benefit of the present invention apparently.
Figure 13 has collected the data that seven kinds of different liquid that contain different organic solvents are applied to the coated test on the smooth mylar sheet.These results have compared prior art extrusion coated machine (prior art) and the present invention's's (new) performance.Performance parameter is many-sided.Can find out feature performance benefit of the present invention from web speed (Vw), wet layer thickness (Tw), coating gap, vacuum or their combination.
One of coating machine performance measured be:, apply the ratio (G/Tw) of gap and wet layer thickness at a specific coating liquid and a web speed.Figure 14 shows a series of constant G/Tw line and the viscosity number of the present invention's one extrusion die to nine different coating liquids.The liquid speed of being coated in is on the smooth polyester film substrate of 30.5 meters of per minutes.Because the influence that other applies factor, there are several viscosity numbers to seem out lattice.Web speed in having calculated Figure 11 and 12 is after the G/Tw value of 30.5 meters of per minutes, has also added four performance line in addition.From top to bottom, the performance solid line is 2.7 centipoises that apply with a known extrusion die and the G/Tw of 1.8 centipoise liquid, and with 2.7 centipoises of extrusion die coating of the present invention and the G/Tw of 1.8 centipoise liquid.G/Tw numerical value line of the present invention is bigger than the coating mould of prior art.In addition, line of the present invention on average is respectively 18.8 and 16.8 near constant G/Tw line.The variation of the G/Tw of the line of known coating machine on their length is bigger.The present invention has the wet thickness that coating is flowed and remains on the operating characteristic very big than the improvement of low value, and operating characteristic has surpassed known system.
Figure 15 and 16 shows the multilayer extrusion die 100 that the present invention has vacuum chamber 102.Mould 100 comprises a up-stream module 104, a voussoir 106 and a downstream module 108.The vacuum pressure of vacuum chamber 102 is supplied with through a vacuum piece 110.Up-stream module 104 is installed on the up-stream module keeper 112, and vacuum piece 110 is by a vacuum piece keeper 114 supportings.First coating liquid 116 supplies to first manifold 120 through first passage 118, distributes by first slit 122 then, to form one first wet coat on thin slice 48.Second coating liquid 124 supplies to second manifold 128 through second channel 126, distributes by second slit 130 then, to form one second wet coat on first coat.Two kinds of liquid pool together at coating stream 132 places.
Perhaps, second channel 126 can form in voussoir 106.In addition, some passage (not shown)s can laterally be passed through mould 100, for example by voussoir 106.These passages can hold water or other fluid cold or heat, with cooling or heating mould.
In this structure, two sharp edges are that downstream edge 134 and voussoir edge 136 can be regulated crossing approach.Also can carry out the adjusting of slit height to the slit 122 and 130 that two coating liquids flow.Have found that in two edges one owe approach and can improve the multiple coating situation in some cases.Article two, edge 134 and 136 mistake approach (towards thin slice 48) and the measurement of owing approach (leaving thin slice 48) are that downstream edge 138 with respect to bending die actinal surface 140 carries out.Along the adjusting range that applies the sharp edge 134 on the downstream module 108 that moves in slit 130 is to owe approach from 0.51mm to cross approach to 0.51mm.Adjusting range along the adjusting device that applies the voussoir edge 136 on the voussoir 106 that moves in slit 122 is to owe approach from 0.51mm to cross approach to 0.51mm.The height H in two slits
1And H
2Scope from 0.076mm to 3.175mm.Be decided to be 0.57 °, the height in two slits in the convergence of bending die actinal surface 140 and be decided to be under the situation of 0.254mm, it is 0.0mm that the best at voussoir edge 136 is crossed approach, and the downstream edge 134 on the downstream module 108 is 0.076mm.The scope in the gap between vacuum piece face 142 on the vacuum piece 110 and the thin slice 48 can be from 0.076mm to 0.508mm, but best be 0.15mm.One flexible sealing strip 144 plays sealing between up-stream module 104 and vacuum piece 110.The principle of this mould also can be applicable to apply three layers or more multi-layered multilayer mould.
Figure 17 and 18 illustrates another embodiment of the multilayer extrusion die 150 that has a vacuum chamber 152.Mould 150 comprises a up-stream module 154, a slit pad 156 and a downstream module 158.The vacuum pressure of vacuum chamber 152 is supplied with through a vacuum piece 160.Up-stream module 154 is installed on the up-stream module keeper 162, and vacuum piece 160 is by a vacuum piece keeper 164 supportings.First coating liquid 116 offers first manifold 168 through first passage 166, and second coating liquid 124 offers second manifold 172 through second channel 170.Two kinds of coating liquids pool together in mould 150 inboards, and flow through slit 174 with the form of the overlapping layer that separates.Coating liquid 116 and 117 forms two-layer wet coat by applying stream 176 on thin slice 48.Perhaps, can replace slit pad 156 with two manifolds 168 with opened in 172 minutes with a voussoir.
Have only a sharp edge 178 on the downstream module 158 to need to adjust its mistake approach with respect to the downstream edge 180 of the bending die actinal surface 182 on the up-stream module 154.The scope of slit height, mistake approach and convergence is identical with the regulation among Fig. 5.Preferably, the slit height is 0.18mm, and crossing approach is 0.076mm, and convergence is 0.57 °.Vacuum piece face 184 on the vacuum piece 160 and the interstice coverage between the thin slice 48 from 0.076mm to 0.508mm, 0.15mm preferably.One elastic sealing strip 186 has been avoided the seepage between up-stream module 154 and the vacuum piece 160.
Figure 19 shows a known slip and applies mould 200.This mould has a vacuum chamber 202, a liquid to distribute manifold 204, a liquid flow slit 206 and a slidingsurface 208.Coating liquid is applied to be walked around on the thin slice 18 that a backing roll 20 passes through.Coating stream edge 210 is the wide flat working faces of 3.2mm on mould.Usually apply stream edge 210 and be decided to be along on the radius R of backing roll, R is under horizontal line for this radius, with horizontal included angle A
3Be 10 °, mould slidingsurface 208 angle A of face tilt under the horizontal line
4Promptly 25 °.
Figure 20 shows a multilayer slip of the present invention that has a conventional operation face angle and a vacuum chamber 222 and applies mould 220.Mould 220 comprises a vacuum piece 224, a up-stream module 226, one first manifold piece 228, one second manifold piece 230 and a downstream module 232.Apply stream edge 238 along backing roll radius R location, R is under horizontal line for this radius, with horizontal included angle A
3Be 10 °, make mould slidingsurface 236 angle A of face tilt under the horizontal line
4Promptly 25 °.Important size and position are the angle A that applies the stream edge
1, cross approach O, convergence C, apply clearance G
1With vacuum piece face clearance G
2There is not the coating liquid slit directly to provide coating liquid for applying stream.Coating liquid, flows to apply always and flows on the edge 238 toward dirty along slidingsurface 236.This slip coating machine has the premium properties that surpasses known slip coating machine.Apply the angle A at stream edge
1Can between 50 ° to 90 °, change.Best coating stream edge angle A
1It is 80 °.Be decided to be at convergence C under 0.57 ° the situation, best to cross approach O be 0.076mm.Be in operation, first coating liquid 116 down flows to coating stream through first slit 240 along slidingsurface 236, just forms first coat there on thin slice 48.Second coating liquid 124 toward dirty, above first coating liquid on the slidingsurface 236, flow to always and applies stream along slidingsurface 244 through second slit 242, and it forms second coat on ground floor there.
Figure 21 illustrates the coating machine 250 of an extruding of the present invention and the combination of sliding, and it can be used for the coating machine of the extruding of multilayer or individual layer and the combination of sliding.Coating machine 250 comprises a vacuum piece 224, a up-stream module 226, one first manifold piece 228, one second manifold piece 230 and a downstream module 232.Apply stream edge 238 and be positioned at along on the backing roll radius R, R is under horizontal line for this radius, with horizontal included angle A
3Be 10 °, make mould slidingsurface 236 angle A of face tilt under the horizontal line
4Promptly 25 °.Perhaps, applying stream edge 238 is provided with to such an extent that make the fluid of discharging from first slit 252 vertical with thin slice 48 in application point.
Important size and position are the angle A that applies the stream edge
1, first slit 252 height, cross approach O, convergence C, apply clearance G
1With vacuum piece face clearance G
2Best coating stream edge angle A
1It is 80 °.Being decided to be 0.57 °, the height in first slit 252 at convergence C is under the situation of 0.15mm, and best to cross approach O be 0.076mm.First coating liquid 116 to applying stream, forms one first coat through first slit 252 on thin slice 48.Second coating liquid 124 down flows to along slidingsurface 236 through second slit 254 and applies stream, forms second coat on ground floor.The 3rd coating liquid 256 is through the 3rd slit 258, and along slidingsurface 244 down, second coating liquid 124 that flows through above slidingsurface 236 flows to applying, and forms the 3rd coat on the second layer.
The angle that a slip of the present invention shown in Figure 22 applies the working face that mould adopted is more precipitous than what use in known system.Coating machine edge in the mould 310 is positioned on the radius R, and this radius is on horizontal line, with horizontal included angle A
3Scope from 35 ° to 90 °, preferably 45 °.Slidingsurface 312 and be tangential to included angle A between the plane P of backing roll 314
6Scope from 30 ° to 75 °, the best is 55 °.The included angle A of slidingsurface 312 and vertical plane like this
7It is 10 °.Coating liquid is pumped into manifold 318 by access road 316, applies slit 320 along slidingsurface 312 down through one then, is coated at last on the thin slice 48.Vacuum chamber 324 has guaranteed to apply the stability of stream, and the installation of vacuum piece 326 and adjustment are that the supporting member 328 with up-stream module separates and carries out.Rheology according to coating liquid is selected different slidingsurface length L with flowing velocity, thereby forms the coat of level and smooth no fault.The scope of the length L of slidingsurface is from 1.6mm to 50.8mm.Viscosity is better in the operating ratio on 12.7mm and shorter sliding length of the liquid under 10 centipoises.Viscosity is better in the operating ratio on the sliding length long greater than 12.7mm of the liquid on 10 centipoises.
In an example, the length of slidingsurface is 38.1mm, and crossing approach is 0.076mm, and convergence is 0.38 °.Viscosity is that the coating liquid speed of being coated in of 100 centipoises is on the aluminium foil of 15.2 meters of per minutes.Vacuum is 63.5 millimeters of water, and applying the gap is 0.508mm, and wet layer thickness is 0.027mm (G/Tw=18.8).Coating is smooth and do not have fault.
Figure 23 shows the sandwich construction of Figure 22 mould.Figure 24 shows the sandwich construction of the extruding of Figure 22 mould and the combination of sliding.It is as implied above like that to cross approach and convergence.In both of these case, best edge angle A
1It all is 80 °.
Claims (6)
1. the multilayer mould coating unit of a coated with multiple layer fluid on a surface comprises:
One mould (100), the voussoir (106) and one that this mould has a up-stream module (104), that has the upstream die orifice to have the voussoir edge has the downstream module (108) of downstream die orifice, wherein, the upstream die orifice has a die orifice face (140), there is a sharp edge (136) at the voussoir edge, and the downstream die orifice has a sharp edge (134); And
One runs through the second channel (126) of mould (100) at the first passage (118) that runs through mould (100) between up-stream module (104) and the voussoir (106) and between voussoir (106) and downstream module (108), wherein, first passage (118) comprises first slit (122) that is made of upstream die orifice and voussoir edge, and second channel (126) comprises second slit (130) that is made of voussoir edge and downstream die orifice; And
Wherein, first coating liquid (116) is discharged mould (100) from first slit (122), form a continuous coating stream (132) at upstream die orifice, voussoir edge and between to be added on the surface that will apply with coated surface, wherein, second coating liquid (124) is discharged mould (100) from second slit (130), forms a continuous coating stream (132) and apply and flow to be added in first between voussoir edge, downstream die orifice and coated surface; It is characterized in that:
Described sharp edge (136) leaves the position that is coated with the surface can be more not farther than the adjacent angular of die orifice face; Coating unit also comprises:
Improve the device of paintability by at least one parameter among the height H, mistake approach O and the convergence C that change the slit, wherein, slit height, mistake approach and convergence combination with one another are selected together, wherein, the edge angle A of the length L of die orifice face (140), downstream module (108)
1, the mould angle of attack A between downstream module surface that applies the slit and the positive section of passing through coated lip-deep straight line
2And sharp edge (134) and the coating clearance distance G between the coated surface combined select, wherein said tangent plane parallel and directly with respect to sharp edge (134).
2. as claimed in claim 1 on a surface multilayer mould coating unit of coated with multiple layer fluid, also comprise slidingsurface (236,244), the coating liquid of one deck at least in first and second coating liquids is slided on described slidingsurface after discharging the slit.
3. one kind is coated in a lip-deep mould coating unit to coating liquid, comprising:
One mould (220), this mould have one to have the up-stream module (226) of a upstream die orifice, a downstream module (232) and the vacuum piece (224) that a manifold piece (228), has a downstream die orifice; And
One runs through the first passage of the mould (220) between manifold piece (228) and the downstream module (232), wherein, coating liquid is discharged mould (220) from this passage, and along slidingsurface (236) slippage, with at the sharp edge (238) of manifold piece, upstream die orifice and want to form a continuous coating stream between the coated surface, it is characterized in that:
Also comprise a slidingsurface (236) on manifold piece (228), wherein, the upstream die orifice has a die orifice face, and the first manifold piece (228) has a sharp edge (238) adjacent with coating surface.
4. as claimed in claim 3 coating liquid is coated in a lip-deep mould coating unit, it is characterized in that,
The edge angle A of die orifice face length degree L, manifold piece
1And sharp edge and the coating clearance distance G combination with one another between the coated surface selected together; And
Select crossing approach O and convergence C combination with one another together.
As in claim 1 and 2 each described on a surface multilayer mould coating unit of coated with multiple layer fluid, it is characterized in that the shape of die orifice face conforms to the shape of wanting coated surface.
6. as in claim 3 and 4 each is described coating liquid is coated in a lip-deep mould coating unit, it is characterized in that, the shape of die orifice face conforms to the shape of wanting coated surface.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US23662594A | 1994-04-29 | 1994-04-29 | |
| US23656994A | 1994-04-29 | 1994-04-29 | |
| US08/236,625 | 1994-04-29 | ||
| US08/236,569 | 1994-04-29 |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB011045744A Division CN1184015C (en) | 1994-04-29 | 1995-03-16 | Multilayer sliding mould coating method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1147217A CN1147217A (en) | 1997-04-09 |
| CN1079704C true CN1079704C (en) | 2002-02-27 |
Family
ID=26929901
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN95192798A Expired - Fee Related CN1079704C (en) | 1994-04-29 | 1995-03-16 | Multiple layer and slide die coating method and apparatus |
| CNB011045744A Expired - Fee Related CN1184015C (en) | 1994-04-29 | 1995-03-16 | Multilayer sliding mould coating method |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB011045744A Expired - Fee Related CN1184015C (en) | 1994-04-29 | 1995-03-16 | Multilayer sliding mould coating method |
Country Status (10)
| Country | Link |
|---|---|
| EP (1) | EP0757596B1 (en) |
| JP (1) | JP3777404B2 (en) |
| KR (1) | KR100359958B1 (en) |
| CN (2) | CN1079704C (en) |
| BR (1) | BR9507569A (en) |
| CA (1) | CA2187881A1 (en) |
| DE (1) | DE69535753D1 (en) |
| MX (1) | MX9605129A (en) |
| TW (1) | TW298113U (en) |
| WO (1) | WO1995029763A1 (en) |
Cited By (2)
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| CN100400172C (en) * | 2004-12-30 | 2008-07-09 | 刘大佼 | Die set for coextrusion coat, and method for coextrusion coating two kinds of coats |
| CN100418641C (en) * | 2004-10-04 | 2008-09-17 | 大日本网目版制造株式会社 | Substrate processing device and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| AU701909B2 (en) * | 1994-09-16 | 1999-02-11 | Avery Dennison Corporation | Method and apparatus for multilayer die coating |
| US5728430A (en) * | 1995-06-07 | 1998-03-17 | Avery Dennison Corporation | Method for multilayer coating using pressure gradient regulation |
| US6824828B2 (en) | 1995-06-07 | 2004-11-30 | Avery Dennison Corporation | Method for forming multilayer release liners |
| US7097673B2 (en) | 2001-06-07 | 2006-08-29 | 3M Innovative Properties Company | Coating edge control |
| US6813820B2 (en) | 2001-12-19 | 2004-11-09 | 3M Innovative Properties Company | Method of improving coating uniformity |
| US6720025B2 (en) | 2002-07-01 | 2004-04-13 | 3M Innovative Properties Company | Slot extrusion coating methods |
| US20040247794A1 (en) * | 2003-06-03 | 2004-12-09 | Fuji Photo Film Co., Ltd. | Coating method and coater |
| EP1663510A1 (en) | 2003-09-17 | 2006-06-07 | 3M Innovative Properties Company | Methods for forming a coating layer having substantially uniform thickness, and die coaters |
| JP2007121426A (en) * | 2005-10-25 | 2007-05-17 | Fujifilm Corp | Method for manufacturing optical film and optical film manufactured by the method |
| US8206779B2 (en) | 2006-03-24 | 2012-06-26 | Fujifilm Corporation | Method for producing laminate, polarizing plate, and image display device |
| JP2008149223A (en) * | 2006-12-15 | 2008-07-03 | Chugai Ro Co Ltd | Coating apparatus |
| JP4865893B2 (en) * | 2009-09-28 | 2012-02-01 | パナソニック株式会社 | Die head and liquid applicator |
| KR101212201B1 (en) * | 2010-07-02 | 2012-12-13 | 삼성에스디아이 주식회사 | Active material coating apparatus |
| BR112013012573A2 (en) * | 2010-11-24 | 2018-05-08 | 3M Innovative Properties Co | use of a one-coat coating to apply a thin coated layer |
| CN102039255A (en) * | 2011-01-28 | 2011-05-04 | 福建南平南孚电池有限公司 | Coating device and method for forming pole piece of lithium battery |
| JP5581258B2 (en) * | 2011-03-30 | 2014-08-27 | 富士フイルム株式会社 | Method for producing a film with a coating film |
| JP5346972B2 (en) | 2011-03-30 | 2013-11-20 | 富士フイルム株式会社 | Method for producing film with coating |
| US8771793B2 (en) * | 2011-04-15 | 2014-07-08 | Roche Diagnostics Operations, Inc. | Vacuum assisted slot die coating techniques |
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| TWI453071B (en) * | 2011-08-03 | 2014-09-21 | Nat Univ Chung Cheng | Coating thickness adjustment device |
| US9444106B2 (en) * | 2013-03-15 | 2016-09-13 | GM Global Technology Operations LLC | Simultaneous coating of fuel cell components |
| JP6420997B2 (en) * | 2014-09-03 | 2018-11-07 | 日東電工株式会社 | Coating apparatus and coating film manufacturing method |
| JP6450618B2 (en) * | 2015-03-19 | 2019-01-09 | 東レフィルム加工株式会社 | Coating apparatus and coating method |
| KR101666865B1 (en) * | 2015-08-27 | 2016-10-18 | 주식회사 디엠에스 | Nozzzle assembly including suction chamber and Slit coater using the same |
| EP3774074A1 (en) * | 2018-03-28 | 2021-02-17 | Biemme Elettrica Di Bertola Massimo | Device for coating, in particular painting, the main surfaces of rigid panels with liquid products |
| IT201800004048A1 (en) * | 2018-03-28 | 2019-09-28 | Biemme Elett Di Bertola Massimo | DEVICE FOR COATING, IN PARTICULAR FOR PAINTING THE MAIN SURFACES OF RIGID PANELS WITH LIQUID PRODUCTS |
| JP7404063B2 (en) | 2019-12-24 | 2023-12-25 | 株式会社ヒラノテクシード | Blade edge adjustment device, coating device, blade edge adjustment method for coating device |
| TWI771972B (en) * | 2021-04-01 | 2022-07-21 | 國立臺灣師範大學 | Co-axial printing equipment and method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US276191A (en) * | 1883-04-24 | Programme-card for dances | ||
| US4283443A (en) * | 1977-01-27 | 1981-08-11 | Polaroid Corporation | Method and apparatus for coating webs |
| US4443504A (en) * | 1982-06-09 | 1984-04-17 | E. I. Du Pont De Nemours & Company | Coating method |
| US5030484A (en) * | 1988-07-04 | 1991-07-09 | Fuji Photo Film Co., Ltd. | Coating method |
| WO1992017816A1 (en) * | 1991-03-28 | 1992-10-15 | Eastman Kodak Company | Coating method |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA557258A (en) * | 1955-02-23 | 1958-05-13 | A. Russell Theodore | Multilayer hopper for feeding a plurality of coating compositions |
| GB1048829A (en) * | 1963-12-10 | 1966-11-23 | Ilford Ltd | High speed coating apparatus |
| GB1266745A (en) * | 1969-06-11 | 1972-03-15 | ||
| US4113903A (en) * | 1977-05-27 | 1978-09-12 | Polaroid Corporation | Method of multilayer coating |
| US4489671A (en) * | 1978-07-03 | 1984-12-25 | Polaroid Corporation | Coating apparatus |
| US4508764A (en) * | 1982-12-14 | 1985-04-02 | E. I. Du Pont De Nemours And Company | Coating process employs surfactants |
| JPS62186966A (en) * | 1986-02-12 | 1987-08-15 | Fuji Photo Film Co Ltd | Method and apparatus for coating |
| US4774109A (en) * | 1987-07-21 | 1988-09-27 | Nordson Corporation | Method and apparatus for applying narrow, closely spaced beads of viscous liquid to a substrate |
| US5380365A (en) * | 1992-01-21 | 1995-01-10 | E. I. Du Pont De Nemours And Company | Lip surface geometry for slide bead coating |
| JP2916557B2 (en) * | 1992-04-16 | 1999-07-05 | 富士写真フイルム株式会社 | Coating device |
-
1995
- 1995-03-16 MX MX9605129A patent/MX9605129A/en not_active IP Right Cessation
- 1995-03-16 DE DE69535753T patent/DE69535753D1/en not_active Expired - Lifetime
- 1995-03-16 CA CA002187881A patent/CA2187881A1/en not_active Abandoned
- 1995-03-16 KR KR1019960706090A patent/KR100359958B1/en not_active IP Right Cessation
- 1995-03-16 WO PCT/US1995/003177 patent/WO1995029763A1/en active Application Filing
- 1995-03-16 BR BR9507569A patent/BR9507569A/en not_active IP Right Cessation
- 1995-03-16 CN CN95192798A patent/CN1079704C/en not_active Expired - Fee Related
- 1995-03-16 EP EP95914034A patent/EP0757596B1/en not_active Expired - Lifetime
- 1995-03-16 CN CNB011045744A patent/CN1184015C/en not_active Expired - Fee Related
- 1995-03-16 JP JP52820695A patent/JP3777404B2/en not_active Expired - Fee Related
- 1995-04-13 TW TW084216706U patent/TW298113U/en unknown
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US276191A (en) * | 1883-04-24 | Programme-card for dances | ||
| US4283443A (en) * | 1977-01-27 | 1981-08-11 | Polaroid Corporation | Method and apparatus for coating webs |
| US4443504A (en) * | 1982-06-09 | 1984-04-17 | E. I. Du Pont De Nemours & Company | Coating method |
| US5030484A (en) * | 1988-07-04 | 1991-07-09 | Fuji Photo Film Co., Ltd. | Coating method |
| WO1992017816A1 (en) * | 1991-03-28 | 1992-10-15 | Eastman Kodak Company | Coating method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100418641C (en) * | 2004-10-04 | 2008-09-17 | 大日本网目版制造株式会社 | Substrate processing device and method |
| CN100400172C (en) * | 2004-12-30 | 2008-07-09 | 刘大佼 | Die set for coextrusion coat, and method for coextrusion coating two kinds of coats |
Also Published As
| Publication number | Publication date |
|---|---|
| BR9507569A (en) | 1997-08-05 |
| MX9605129A (en) | 1997-08-30 |
| DE69535753D1 (en) | 2008-06-26 |
| JP3777404B2 (en) | 2006-05-24 |
| CN1184015C (en) | 2005-01-12 |
| EP0757596A1 (en) | 1997-02-12 |
| TW298113U (en) | 1997-02-11 |
| CN1147217A (en) | 1997-04-09 |
| CA2187881A1 (en) | 1995-11-09 |
| EP0757596B1 (en) | 2008-05-14 |
| CN1308993A (en) | 2001-08-22 |
| WO1995029763A1 (en) | 1995-11-09 |
| JPH09511681A (en) | 1997-11-25 |
| KR100359958B1 (en) | 2002-12-18 |
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