WO2007129551A1 - 印刷装置 - Google Patents
印刷装置 Download PDFInfo
- Publication number
- WO2007129551A1 WO2007129551A1 PCT/JP2007/058618 JP2007058618W WO2007129551A1 WO 2007129551 A1 WO2007129551 A1 WO 2007129551A1 JP 2007058618 W JP2007058618 W JP 2007058618W WO 2007129551 A1 WO2007129551 A1 WO 2007129551A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- ejection
- printing
- head
- gas
- ejection head
- Prior art date
Links
- 230000003068 static effect Effects 0.000 claims description 37
- 230000008030 elimination Effects 0.000 claims description 24
- 238000003379 elimination reaction Methods 0.000 claims description 24
- 230000001678 irradiating effect Effects 0.000 claims 1
- 239000000428 dust Substances 0.000 abstract description 8
- 230000005499 meniscus Effects 0.000 abstract description 3
- 238000006386 neutralization reaction Methods 0.000 abstract 1
- 230000003472 neutralizing effect Effects 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 78
- 239000011247 coating layer Substances 0.000 description 31
- 239000002904 solvent Substances 0.000 description 12
- 150000002500 ions Chemical class 0.000 description 10
- 238000000034 method Methods 0.000 description 10
- 239000000758 substrate Substances 0.000 description 9
- 239000002245 particle Substances 0.000 description 8
- 230000005611 electricity Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000011109 contamination Methods 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000004040 coloring Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 239000009719 polyimide resin Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000000935 solvent evaporation Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J29/00—Details of, or accessories for, typewriters or selective printing mechanisms not otherwise provided for
- B41J29/17—Cleaning arrangements
-
- 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
-
- 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
- B05C9/08—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 liquid or other fluent material and performing an auxiliary operation
- B05C9/10—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 liquid or other fluent material and performing an auxiliary operation the auxiliary operation being performed before the application
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/135—Nozzles
- B41J2/165—Prevention or detection of nozzle clogging, e.g. cleaning, capping or moistening for nozzles
- B41J2/16517—Cleaning of print head nozzles
- B41J2/1652—Cleaning of print head nozzles by driving a fluid through the nozzles to the outside thereof, e.g. by applying pressure to the inside or vacuum at the outside of the print head
- B41J2/16532—Cleaning of print head nozzles by driving a fluid through the nozzles to the outside thereof, e.g. by applying pressure to the inside or vacuum at the outside of the print head by applying vacuum only
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/135—Nozzles
- B41J2/165—Prevention or detection of nozzle clogging, e.g. cleaning, capping or moistening for nozzles
- B41J2/16585—Prevention or detection of nozzle clogging, e.g. cleaning, capping or moistening for nozzles for paper-width or non-reciprocating print heads
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J29/00—Details of, or accessories for, typewriters or selective printing mechanisms not otherwise provided for
- B41J29/377—Cooling or ventilating arrangements
Definitions
- the present invention relates to a printing apparatus that performs printing by discharging a coating liquid from a nozzle.
- an ink jet printer (printing apparatus) has been used to form alignment films and color filters of liquid crystal display devices.
- an alignment film material for example, resin
- an ink in which a coloring material is dissolved or dispersed is ejected from a nozzle and landed on the substrate surface to form a coating layer
- an excess solvent is removed from the coating layer.
- a desired film is formed by drying and removing.
- the ink is ejected so that the ink that has landed later overlaps.
- the substrate is easily charged because an insulating substrate such as a glass substrate or a plastic substrate is generally used.
- an insulating substrate such as a glass substrate or a plastic substrate is generally used.
- dust and the like are adsorbed on the substrate and the dust is mixed in the film forming process.
- Patent Document 1 Japanese Patent No. 3248685
- Patent Document 2 Japanese Patent Laid-Open No. 2003-297569
- the present invention has been made to solve the above-mentioned problems, and its object is to provide a printing apparatus in which contamination of the printing apparatus without dry spots and film thickness unevenness and dust is not mixed in the film forming process. To do.
- the present invention includes a print head and first moving means for moving the print head, and directs ink toward a print object while moving the print head.
- a first ejection head that is disposed on a front side in a moving direction of the print head and is supplied with a first gas; and the first ejection head.
- An ionizer that ionizes the first gas to generate a discharge gas, and is formed at a position facing the print object of the first ejection head, and the discharge gas is used as the print object.
- the first ejection head and the print head It is movably arranged printing device together by the first moving means.
- the present invention is arranged at the rear side in the movement direction of the print head, and is formed at a position where the second ejection head to which the second gas is supplied and the second ejection head face the printing object.
- a suction hole that is disposed between the ejection hole for ejecting the second gas toward the printing object, the ejection hole of the second ejection head, and the printing head, and connected to the suction device.
- the second ejection head is a printing device that is movable together with the print head and the first ejection head.
- the present invention is a printing apparatus in which an ultrasonic wave generation unit that irradiates an ultrasonic wave together with the second gas is provided in the second ejection head.
- the present invention includes an ionizer disposed in the second ejection head and ionizing the second gas, and the first moving means includes the print head and the first and second ejection heads.
- a printing device configured to reciprocate together with an exit head.
- the present invention is a printing apparatus having second moving means for moving the print head relative to the first and second ejection heads.
- the invention's effect Because the discharge gas is blown onto the object to be printed before the ink lands, dust is removed, so that dust does not enter the coating layer. Since neither the static elimination gas nor the dry gas enters the nozzle, the meniscus is not disturbed and the discharge of the nozzle is stabilized. Since dry gas is blown after ink landing, the ink dries quickly and dry unevenness does not occur. Solvents that evaporate from the ink and ink splashes are removed by suction, which can cause contamination of the printing device and work environment. After ink landing, the coating layer is flattened by ultrasonic waves, so that the film thickness becomes uniform.
- FIG. L (a), (b): plan view and sectional view for explaining an example of the printing apparatus of the present invention.
- FIG. 4 is a plan view illustrating another example of the printing apparatus of the present invention.
- Reference numeral 1 in FIG. 1 (a) represents an example of the printing apparatus of the present invention.
- the printing apparatus 1 includes a mounting table 11, a printing mechanism 3 disposed on the mounting table 11, and a moving unit 15 that moves the printing mechanism 3 on the mounting table 11.
- the moving means 15 has rails 14a and 14b and a motor 19 and is connected.
- the printing mechanism 3 is mounted on the rails 14a and 14b, and is configured to be movable along the laying direction of the rails 14a and 14b by the driving force of the motor 19.
- the printing mechanism 3 includes a print head 30 and first and second ejection heads 40 and 50.
- the printing head 30 is formed in an elongated shape.
- the print head 30 has a holding body 31 and an individual head 33.
- the number of the individual heads 33 is plural.
- the individual heads 33 are arranged in one or more rows on the surface of the holding body 31 on the mounting table 11 side.
- One or a plurality of nozzles 35 are provided on the surface of the mounting table 11 of each individual head 33 (Fig. L (b)).
- An ink supply system 20 is disposed outside the printing mechanism 3.
- Each individual head 33 is connected to the ink supply system 20, and the ink supplied from the ink supply system 20 is ejected from the nozzle 35 toward the mounting table 11.
- the arrangement of the individual heads 33 is such that the nozzles 35 are arranged in a row or a plurality of rows.
- Reference numeral 32 in FIG. 1 (b) denotes a nose nore region, which is an area in which the rows of nose nore 35 are arranged.
- Nozzle No. 35 ⁇ 1J is oriented in a direction that intersects the direction of movement of the printing mechanism 3. When ink is ejected from each nozzle 35 while the printing mechanism 3 is moving, the ink can be landed in a predetermined region.
- the first ejection head 40 is disposed on one long side of the print head 30, and the second ejection head 50 is disposed on the other long side of the print head 30. Since the nozzle 35 is provided in the print head 30, the nozzle region 32 is located between the first and second ejection heads 40, 50.
- the print head 30 is oriented such that the longitudinal direction intersects the moving direction of the printing mechanism 3.
- the first ejection head 40, the nozzle region 32, and the second ejection head 50 are arranged along the moving direction of the printing mechanism 3.
- a gas supply system 17 and a suction device 18 are disposed outside the printing mechanism 3.
- the first and second ejection heads 40 and 50 are connected to the gas supply system 17 and the suction device 18 via flexible pipes, respectively.
- FIG. 2 and 3 are enlarged sectional views of the first and second ejection heads 40 and 50.
- FIG. 2 and 3 are enlarged sectional views of the first and second ejection heads 40 and 50.
- the first and second ejection heads 40 and 50 have head bodies 41 and 51, respectively.
- Buffer chambers 42 and 52 are provided in the head main bodies 41 and 51, respectively.
- Each buffer chamber 42, 52 is configured to be supplied with gas from the gas supply system 17 described above.
- Ejection holes 46, 56 are provided in the bottom wall of the head main bodies 41, 51 facing the mounting table 11.
- Each of the ejection holes 46 and 56 has one end connected to the buffer chambers 42 and 52 and the other end connected to the external atmosphere. Therefore, the notch chambers 42 and 52 are connected to the external atmosphere via the ejection holes 46 and 56.
- Symbol D in FIGS. 1 (a) and 1 (b) indicates a printing machine when moving while discharging ink from the nozzle 35.
- the moving direction of Structure 3 is shown. Assuming that the ejection head on the leading side in the moving direction D is the first ejection head 40 and the ejection head on the rear side is the second ejection head 50, the buffer chamber 42 of the first ejection head 40 has no ionizer. 45 is provided.
- the ionizer 45 is connected to a power source (not shown). When the ionizer 45 is energized and corona discharge is generated in the ionizer 45, the gas supplied to the buffer chamber 42 is ionized to generate a static elimination gas, and the static elimination gas is ejected from the ejection hole 46. .
- the second ejecting head 50 is not provided with an ionizer and ionization does not occur. Therefore, non-ionized gas (dry gas) is ejected from the ejection holes 56 of the second ejection head 50.
- an ultrasonic wave generating means 55 is provided in the buffer chamber 52 of the second ejection head 50.
- the ultrasonic wave generating means 55 is provided in the vicinity of the ejection hole 56 inside the buffer chamber 52.
- the first ejection head 40 is positioned at the leading end in the movement direction D with respect to the second ejection head 50. Therefore, if the static elimination gas and the dry gas are sprayed while moving the printing mechanism 3, the static elimination gas and the dry gas are sprayed in the order indicated in the band-shaped region along the movement direction D.
- the ejection holes 46 and 56 are formed of elongated slits or a plurality of through holes arranged in one or more rows.
- the first and second ejection heads 40 and 50 are oriented so that the longitudinal direction or the row direction of the ejection holes 46 and 56 intersects the moving direction D. Therefore, the area where the static elimination gas is abutted and the area where the dry gas is blown have a width corresponding to the length of the ejection holes 46 and 56, respectively.
- suction chambers 43, 44, 53, and 54 are provided in the head main bodies 41 and 51.
- the suction chambers 43, 44, 53, and 54 are connected to the suction device 18 described above. Is suction applied to the bottom walls of the head bodies 41 and 51? L47, 48, 57, 58 force S is provided and it is released. P One end of each of 47, 48, 57, 58 is connected to suction chambers 43, 44, 53, 54, and the other end is connected to the external atmosphere. When evacuating, the internal pressure is The gas in the external atmosphere is sucked from the suction holes 47, 48, 57, and 58.
- the suction holes 47 and 57 are provided at positions between the ejection holes 46 and 56 and the nozzle region 32, respectively.
- the directional gas from the ejection holes 46 and 56 toward the nozzle region 32 is sucked into the suction holes 47 and 57.
- suction holes 48 and 58 are also located on the opposite side of nozzle region 32 across ejection holes 46 and 56. Accordingly, of the static elimination gas and the drying gas, the gas that circulates outside the printing mechanism 3 is also sucked.
- the suction holes 47, 48, 57, 58 are formed of elongated slits or a plurality of through-holes arranged in one or more rows.
- the suction holes 47, 48, 57, 58 have the longitudinal direction (or line direction) substantially parallel to the line direction of the ejection holes 46, 56.
- Both ends of the suction holes 47, 48, 57, 58 in the longitudinal direction or both ends of the rows protrude from the same length as the both ends of the ejection holes 46, 56 in the longitudinal direction or both ends of the rows. Accordingly, the gas ejected from each part of the ejection holes 46 and 56 is equally sucked into the suction holes 47, 48, 57 and 58.
- FIG. 1 shows a state in which the printing object 5 is arranged at a predetermined position on the mounting table 11, and reference numeral 4 in FIG. 1 shows a printing area where an application layer on the surface of the printing object 5 is to be formed.
- the printing mechanism 3 is moved in the direction opposite to the moving direction D described above, and is positioned at the start position S outside the printing area 4.
- the first ejection head 40, the nozzle area 32, and the second ejection head 50 are arranged in the order described from the side closer to the printing area 4. Become.
- the length in the direction orthogonal to the moving direction D of the printing area 4 is the width of the printing area 4
- the length of the slits or rows of the ejection holes 46 and 56 is larger than the width of the printing area 4.
- the slits of the holes 46 and 56 or the both ends of the row S, and the edges that coincide with the edges of the printing area 4 are projected beyond that, and when the printing mechanism 3 moves to the end position E, the printing area 4
- the static elimination gas is blown to the static electricity and the static electricity is eliminated, and the adhesion force of the particles (dust) to the printing object 5 is reduced, and the particles are blown away by the static elimination gas and removed from the printing area 4.
- suction holes 47 and 48 force S are provided on both sides of the ejection hole 46 of the first ejection head 40, the particles together with the static elimination gas are suction holes 47, 48 and 57. , 58 sucked in and not reattached to the print object 5.
- the length of the nozzle area 32 is larger than the width of the printing area 4. Both ends of the nozzle area 32 coincide with or protrude beyond the edge of the printing area 4, and the ink in the width direction of the printing area 4 reaches the other end. Can land at a predetermined interval.
- suction holes 47 and 57 are provided between the ejection holes 46 and 56 and the nozzle area 32, no airflow is generated in the nozzle area 32 as described above, and it occurs at the time of discharge or landing. Ink droplets are also sucked into the suction holes 47 and 57.
- the discharge gas and the dry gas do not enter the nozzle 35, and the surroundings of the nozzle 35 are not contaminated by ink splashes. Therefore, the meniscus is not disturbed in the nozzle 35, and the ink is stably discharged. .
- the ejection holes 56 of the second ejection head 50 are also formed in the printing area 4 because they coincide with or protrude beyond the edges of the printing area 4 of the slit or row. Then, dry gas is sprayed on the entire coating layer 12 to evaporate and remove the solvent from the ink constituting the coating layer 12.
- the ultrasonic vibration is applied to the coating layer 12 together with the air flow of the dry gas, when the coating layer 12 is dried, the coating layer 12 is also flattened by the ultrasonic vibration. Therefore, the coating layer 12 is flat and dry.
- the second ejection head 50 is provided with a suction hole 58 also behind the ejection direction 56 of the ejection hole 56, the solvent evaporated and removed from the coating layer 12 is sucked into the suction hole 58. The Therefore, contamination of the work environment with a small amount of solvent vapor leaking outside the printing mechanism 3 is prevented.
- the printing mechanism 3 After the printing mechanism 3 reaches the end position E, the printing object 5 in a state where the coating layer 12 is formed is removed from the mounting table 11, and the printing mechanism 3 is moved while the ink discharge is stopped. If it is moved in the direction opposite to the direction D and returned to the start position S again, the coating layer 12 can be formed on the new print object 5.
- Reference numeral 7 in FIG. 4 shows another example of the printing apparatus of the present invention.
- This printing apparatus 7 has a moving means (first moving means) 15 for moving the printing mechanism 3 and first and second jets.
- the configuration of the heads 40 and 50 and the relationship between the length of the ejection holes 46 and 56 and the width of the printing area 4 are the same as those in the printing apparatus 1 in FIG. It has the moving means 85, the area of the nozzle area 32 is different, and the first and second ejection heads 40 and 50 both have the ionizer 45 and the ultrasonic generator 55. It is different that it was attached.
- the ionizer 45 and the ultrasonic generator 55 can be switched individually, and the first and second ejection heads 40 and 50 discharge static gas from the ejection holes 46 and 56 when the ionizer 45 is operated. With the jetting and ionizer 45 stopped, dry gas is jetted. Further, if the ultrasonic generator 55 is operated when the dry gas is jetted, the ultrasonic vibration can be transmitted together with the air flow of the dry gas.
- the second moving means 85 includes a linear guide 84 and a motor 86.
- the driving force of the motor 86 is transmitted to the print head 30, the force of the print head 30 is first and second. It is configured to be able to reciprocate along the laying direction of the guide 84 at a position between the ejection heads 40 and 50.
- the first and second ejection heads 40, 50 are not moved by the second moving means 85, and the guide 84
- the second moving means 85 moves the print head 30 relative to the first and second ejection heads 40, 50.
- the laying direction of the guide 84 intersects the moving direction of the printing mechanism 3, and therefore the print head
- the moving direction when 30 moves relative to the first and second ejection heads 40 and 50 intersects the moving direction of the printing mechanism 3.
- the first moving means 15 moves the printing mechanism 3 to the start position S outside the printing region 4.
- the ejection head closer to the printing area 4 is the first ejection head 40 and the ejection head farther from the printing area 4 is the second ejection head 5.
- the ink discharge starts when the nozzle area 32 enters the printing area 4 from the start position S, and the nozzle area 32 exits from the printing area 4 to the folding position M. At this time, the ink ejection is stopped, and a strip-shaped coating layer 12 is formed along the moving direction of the printing mechanism 3.
- the length of the nozzle region 32 of the printing apparatus 7 is shorter than the width of the printing region 4. Therefore, when the nozzle area 32 goes to the folding position M, the coating layer 12 is not formed in the entire printing area 4, and the coating layer 12 is formed in the printing area 4 along the moving direction of the printing mechanism 3. Then, there will be a part, and a part will remain.
- the print head 30 While the printing mechanism 3 is stationary at the folding position M, the print head 30 is moved in a direction crossing the moving direction of the printing mechanism 3, and the nozzle region 32 is formed in the coating layer 12 in the return path described later. The position of the print head 30 is shifted so that it passes through the part.
- the first ejection head 40 in which the second ejection head 50 is close to the printing area 4 is farther from the printing area 4 than the second ejection head 50.
- Ejection of static elimination gas from the second ejection head 50, ejection of dry gas from the first ejection head 40, generation of ultrasonic waves in the first ejection head 40, and each suction hole 47 , 48, 57, 58 Start suction. While continuing the ejection of static elimination gas and dry gas, generation of ultrasonic waves, and suction, the printing mechanism 3 is moved to return from the folding position M to the starting position S.
- the coating layer 12 is formed in the forward path.
- a strip-shaped coating layer 12 is formed in the portion that did not exist.
- the length of the nose area 32 is half or longer than the width of the print area 4.
- one end of the nozzle region 32 is made to coincide with or protrude beyond one end of the printing region 4 in the width direction.
- one end of the nozzle area 32 overlaps with the coating layer 12 formed in the forward path, and the other end coincides with the other end in the width direction of the print area 4 or protrudes beyond it.
- the coating layer 12 is formed in the entire printing region 14 by simply reciprocating the printing mechanism 3 once.
- the printing mechanism 3 has returned to the start position S, so that it is not necessary to move the printing mechanism 3 to another position. The ability to open the coating is possible.
- the static elimination gas is sprayed before the ink is landed, and the dry gas is sprayed after the ink is landed. Accordingly, the coating layer 12 having a uniform film thickness with no mixing of particles can be obtained.
- the printing device 7 has an exhaust device 89 disposed around the mounting table 11.
- Solvent vapor that cannot be sucked through the suction holes 47 and 48 is sucked by the exhaust device 89. Furthermore, if the mounting table 11 is covered with a lid member (not shown), the vapor of the solvent is separated from the lid member. Since the space enclosed by the mounting table 11 is filled, the work environment is not polluted by the vapor of the solvent.
- the coating layer 3 can be applied to all the printing areas 4 by moving the printing mechanism 3 one and a half halves and discharging ink.
- the power S can be formed.
- the present invention is not limited to this. Dry gas can be sprayed onto the coating layer 12 without applying ultrasonic vibration.
- the suction holes 47, 48, 57, 58 are not limited to being provided on both sides of the ejection holes 46, 56. Is it at least erupting? Suction between L46, 56 and Nos, Nore region 32? However, if 47 and 57 are provided, the discharge gas from the nozzle 35 is stabilized because the static elimination gas and the dry gas do not reach the nozzle 35.
- the printing apparatuses 1 and 7 of the present invention are particularly suitable for the formation of the coating layer 12 that is required to prevent mixing of particles and film thickness uniformity.
- an alignment film in which an alignment film having a resin film strength is formed by applying an ink in which a resin material such as a polyimide resin is dispersed or dissolved in a solvent.
- Ink is ejected when the nozzle 35 is positioned on a predetermined position of the print object 5, and the coating layer 12 is formed at a predetermined position on the print object 5 with an interval.
- an ink in which a coloring material or PLED (polymer light emitting diode) is dispersed or dissolved in a solvent is landed in a predetermined place (pixel) of the printing object 5, and a color filter, A PLED film may be formed. Even in this case, if the printing apparatuses 1 and 7 of the present invention are used, the color filter and the PLED film have a uniform film thickness with no mixing of particles.
- the type of the printing object 5 is not particularly limited.
- the printing object 5 is a glass substrate on which electrodes are formed.
- the type of gas supplied to the first and second ejection heads 40, 50 is not particularly limited. Nare ,. For example, N, ⁇ , air, etc. Two or more of these gases may be mixed and supplied to the same ejection head. The type of gas supplied for each of the first and second ejection heads 40 and 50 may be changed.
- the location of the ionizer 45 is not limited to the buffer chamber 42. It is sufficient that the ionization gas can be ionized before it is ejected.
- an ionizer 45 may be provided in the gas supply system 17 and the ionized static elimination gas may be supplied to the first ejection head 40 or the second ejection head 50.
- the ionizer 45 used in the present invention is a device that generates + ions and one ion, neutralizes a charged object with ions of opposite polarity, and removes static electricity.
- an AC static eliminator and a DC static eliminator can be used as the ionizer 45.
- the AC type static eliminator boosts the AC power source to a high voltage (AC4kV or more and 7kV or less) and produces positive and negative ions at the timing of the commercial frequency (50Hz to 60Hz).
- AC4kV or more and 7kV or less high voltage
- positive and negative ions at the timing of the commercial frequency (50Hz to 60Hz).
- the features of this static eliminator are its variety of models and easy handling. It is also possible to use a static eliminator that expands the effective range of static eliminator with the assistance of a blower (air blowout).
- a DC static eliminating device is different from the AC method in that it uses a DC high voltage, has positive and negative electrodes, and applies a high voltage to the positive and negative electrodes, respectively. Since the timing of generating ions can be adjusted, and positive and negative ions can be generated separately at the same time, the diffusion of ions is good and the effect of electrostatic removal can be obtained even when the distance from the charged object is long. To do.
- the DC static eliminating device further includes an SSDC (steady state) method and a pulsed DC method.
- the SSDC method generates ions simultaneously by applying a high voltage to the positive and negative electrodes. It differs from other methods in that ions are generated continuously at the same time.
- ions are generated by applying DC high voltage alternately to plus and minus emitters.
- the timing of the pulse frequency
- the effect of removing static electricity suitable for the installation environment and work environment can be obtained.
Landscapes
- Coating Apparatus (AREA)
- Ink Jet (AREA)
- Handling Of Sheets (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2007800157576A CN101432080B (zh) | 2006-05-01 | 2007-04-20 | 印刷装置 |
JP2008514424A JP4997229B2 (ja) | 2006-05-01 | 2007-04-20 | 印刷装置 |
US12/259,638 US20090066976A1 (en) | 2006-05-01 | 2008-10-28 | Printing apparatus |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006-127396 | 2006-05-01 | ||
JP2006127396 | 2006-05-01 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/259,638 Continuation US20090066976A1 (en) | 2006-05-01 | 2008-10-28 | Printing apparatus |
Publications (1)
Publication Number | Publication Date |
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WO2007129551A1 true WO2007129551A1 (ja) | 2007-11-15 |
Family
ID=38667659
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2007/058618 WO2007129551A1 (ja) | 2006-05-01 | 2007-04-20 | 印刷装置 |
Country Status (6)
Country | Link |
---|---|
US (1) | US20090066976A1 (ja) |
JP (1) | JP4997229B2 (ja) |
KR (1) | KR101009312B1 (ja) |
CN (1) | CN101432080B (ja) |
TW (1) | TWI405673B (ja) |
WO (1) | WO2007129551A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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JP2015182336A (ja) * | 2014-03-25 | 2015-10-22 | セイコーエプソン株式会社 | 液体吐出装置 |
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JP5845633B2 (ja) * | 2011-05-26 | 2016-01-20 | セイコーエプソン株式会社 | 液滴吐出装置 |
JP5477981B2 (ja) * | 2012-03-22 | 2014-04-23 | 富士フイルム株式会社 | 液体吐出装置及びメンテナンス方法 |
CN103552377B (zh) * | 2013-11-01 | 2017-05-03 | 京东方科技集团股份有限公司 | 喷墨印刷装置及涂覆配向膜的方法 |
CN106232867B (zh) * | 2014-04-18 | 2019-01-08 | 株式会社尼康 | 膜形成设备、基板处理设备和装置制造方法 |
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Also Published As
Publication number | Publication date |
---|---|
KR20080108144A (ko) | 2008-12-11 |
TW200744857A (en) | 2007-12-16 |
CN101432080B (zh) | 2012-02-15 |
JP4997229B2 (ja) | 2012-08-08 |
JPWO2007129551A1 (ja) | 2009-09-17 |
KR101009312B1 (ko) | 2011-01-18 |
US20090066976A1 (en) | 2009-03-12 |
TWI405673B (zh) | 2013-08-21 |
CN101432080A (zh) | 2009-05-13 |
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