CN100478764C - Head module, printing apparatus, and printing method - Google Patents

Abstract

In a first invention, the flow of a spacer-dispersed liquid occurs in a transportation chamber (22) separated from a discharge chamber (21) by an internal filter (30), and as a result, the discharge chamber (21) located on the nozzle plate (26) side is not affected by the flow and the spacer-dispersed liquid is stably discharged from an ejection hole (32). In a second invention, in a printing condition where a spacer-dispersed liquid (167) is discharged, the spacer-dispersed liquid does not flow inside a discharge chamber (121), and therefore the spacer-dispersed liquid (167) is stably discharged from an ejection hole (132). On the other hand, in a standby condition where the spacer-dispersed liquid is not discharged, the spacer-dispersed liquid is caused to flow in both the discharge chamber (121) and a transportation chamber (122), and as a result, spacer particles (169) in the spacer-dispersed liquid (167) do not settle.

Description

Head module, printing equipment and printing process

Technical field

The printing equipment and the printing process that the present invention relates to head module, assembled this head module.

Background technology

In the past, be disposed at the method for the specified location on the substrate as the sept of colour filtering chip basic board that will be used for keeping equably LCD and the unit interval between array base palte, propose to have the ink printing that uses printing equipment, will be dispersed with this sept method to the substrate.

Printing equipment adopts the printer that printing ink is ejected into the ink-jetting style in printing position from nozzle usually, but if sept does not disperse in printing ink equably, then not only become unstable from the discharging of nozzle, it is bad to produce discharging, or on mass rate of emission, emission direction, produce unusually, and the number problem of unstable of existence sept from the drop of the printing ink of nozzle ejection.

For example, open in the flat 11-7028 communique the spy and to record following printer, promptly, in the stirred vessel of accommodating the solution that contains sept, have cooling body and the ultrasound wave generator that utilizes piezoelectric element, by ultrasound wave the solution that contains sept in stirred vessel is carried out dispersed with stirring, do not make the temperature of solution rise ground, but the sinking of the sept that causes from the pipe arrangement of stirred vessel between shower nozzle, shower nozzle ink chamber inside etc. become problem with the sept discharging.

And then, open in the 2002-72218 communique the spy, record and can in the ink chamber of shower nozzle, make printing ink round-robin printing equipment, but obstruction of the spray nozzle plate that causes because of the foreign matter of sneaking into printing ink etc. becomes problem.

And then in recent years, along with the maximization of printing equipment, the inking line length from the ink bottle to the head module is elongated, descends, condenses at inking line-internal sept and cause variety of issue.

Patent documentation 1: the spy opens flat 11-7028 communique

Patent documentation 2: the spy opens the 2002-72218 communique

Patent documentation 3: the spy opens the 2002-277622 communique

Patent documentation 4: the spy opens the 2003-275659 communique

Summary of the invention

The present invention creates for the unfavorable condition that solves above-mentioned conventional art, and its purpose is to be provided at that sept particle in the printing ink can not sink and head module and the printing equipment that can keep sept dispersion of nano-particles state equably.

In order to solve above-mentioned problem, the first aspect of the invention of first among the present invention is a kind of head module, have: the nozzle body of inner hollow, constitute the nozzle piece of a wall of aforementioned nozzle body, the induction system of carrying to aforementioned nozzle body with the sept dispersion liquid that will supply with from stocking system, aforementioned nozzle piece is provided with squit hole, the aforementioned sept dispersion liquid that is transported to aforementioned nozzle body inside discharges from aforementioned squit hole, wherein, inside in aforementioned nozzle body, dispose the internal ramp that aforementioned sept dispersion liquid can pass through, the drain chamber of aforementioned nozzle piece side is divided in the inner space of aforementioned nozzle body by aforementioned internal ramp, with with the conveying chamber of aforementioned nozzle piece opposition side, on the wall of aforementioned conveying chamber, be provided with the inflow entrance of supplying with aforementioned sept dispersion liquid in the mode of leaving mutually, with the escape hole of discharging aforementioned sept dispersion liquid, aforementioned induction system has pump, and described pump makes the aforementioned sept dispersion liquid of discharging from aforementioned escape hole return to aforementioned inflow entrance.

The first aspect of first invention is a kind of head module, wherein, aforementioned induction system has exhaust valve, by switching aforementioned exhaust valve, and switch to the discharge state from recurrent state, to be aforementioned sept dispersion liquid return the state of aforementioned inflow entrance from aforementioned escape hole to described recurrent state, and described discharge state is aforementioned sept dispersion liquid is discharged to aforementioned stocking system from aforementioned escape hole a state.

The first aspect of first invention is a kind of head module, wherein, in aforementioned sept dispersion liquid, be dispersed with the sept particle, inside at aforementioned internal ramp is provided with path, this path has the above diameter of twice of the diameter of aforementioned sept particle, aforementioned sept dispersion liquid is passed through, and the diameter of aforementioned squit hole is set greatlyyer than the diameter of aforementioned path.

The second aspect of first invention is a kind of printing equipment, has: stocking system, accumulate the sept dispersion liquid; One or more head module discharges aforementioned sept dispersion liquid; Feed system is connected aforementioned each head module with aforementioned stocking system, and supplies with aforementioned sept dispersion liquid to aforementioned each head module; With the discharge system, aforementioned each head module is connected with aforementioned stocking system, and the aforementioned sept dispersion liquid of discharging from aforementioned shower nozzle is returned to aforementioned stocking system; Aforementioned each head module has charge pump, this charge pump is allowed and is stopped to switch the supply of aforementioned sept dispersion liquid, aforementioned each supply valve is being made as when allowing state, supply with aforementioned sept dispersion liquid from aforementioned feed system to aforementioned each head module, wherein, has the connected system that aforementioned feed system is connected with aforementioned discharge system, when aforementioned each supply valve is made as halted state, aforementioned sept dispersion liquid can not pass through aforementioned each head module, and discharges to aforementioned discharge system by aforementioned connected system.

The second aspect of first invention is a kind of printing equipment, aforementioned head module has: the nozzle body of inner hollow, constitute the nozzle piece of a wall of aforementioned nozzle body, the induction system of carrying to aforementioned nozzle body with the sept dispersion liquid that will supply with from stocking system, aforementioned nozzle piece is provided with squit hole, the aforementioned sept dispersion liquid that is transported to aforementioned nozzle body inside discharges from aforementioned squit hole, wherein, the internal ramp that has aforementioned sept dispersion liquid to pass through in the internal configurations of aforementioned nozzle body, the drain chamber of aforementioned nozzle piece side is divided in the inner space of aforementioned nozzle body by aforementioned internal ramp, with with the conveying chamber of aforementioned nozzle piece opposition side, on the wall of aforementioned conveying chamber, be provided with the inflow entrance of supplying with aforementioned sept dispersion liquid in the mode of leaving mutually, with the escape hole of discharging aforementioned sept dispersion liquid, aforementioned induction system has makes pump and the exhaust valve that returns to aforementioned inflow entrance from the aforementioned sept dispersion liquid of aforementioned escape hole discharge, by switching aforementioned exhaust valve, the recurrent state of returning aforementioned inflow entrance from aforementioned sept dispersion liquid from aforementioned escape hole switches to aforementioned sept dispersion liquid is discharged to aforementioned stocking system from aforementioned escape hole discharge state, aforementioned exhaust valve is being made as aforementioned recurrent state, and aforementioned charge pump is made as under the state of halted state the circulation that aforementioned sept dispersion liquid returns to aforementioned inflow entrance from aforementioned escape hole, the circulation that turns back to aforementioned discharge system by aforementioned head module is not carried out simultaneously.

The second aspect of first invention is a kind of printing equipment, has: stocking system, accumulate the sept dispersion liquid; One or more head module discharges aforementioned sept dispersion liquid; Feed system is connected aforementioned each head module with aforementioned stocking system; With the discharge system, aforementioned each head module is connected with aforementioned stocking system, and the aforementioned sept dispersion liquid of discharging from aforementioned head module is returned to aforementioned stocking system; Aforementioned head module has: the nozzle body of inner hollow, constitute the nozzle piece of a wall of aforementioned nozzle body, supply with the feed path of aforementioned sept dispersion liquid to aforementioned nozzle body from aforementioned feed system, the discharge path that the aforementioned sept solution of discharging from aforementioned nozzle body is returned to aforementioned discharge system, the aforementioned sept dispersion liquid that supplies to aforementioned nozzle body is from being arranged at the squit hole discharging on the aforementioned nozzle piece, wherein, inside in aforementioned nozzle body, dispose internal ramp, the drain chamber of aforementioned nozzle piece side is divided in the inner space of aforementioned nozzle body by aforementioned internal ramp, with with the conveying chamber of aforementioned nozzle piece opposition side, on the wall of aforementioned conveying chamber, be provided with the inflow entrance of supplying with aforementioned sept dispersion liquid from aforementioned feed path in the mode of leaving mutually, with the escape hole that aforementioned sept dispersion liquid is returned to aforementioned discharge path, aforementioned feed path is connected with aforementioned escape hole with aforementioned inflow entrance respectively with aforementioned discharge path, to the aforementioned sept dispersion liquid of aforementioned feed path feed before aforementioned discharge path feed by aforementioned conveying chamber.

The second aspect of first invention is a kind of printing equipment, wherein, the aforementioned feed path of aforementioned each head module is connected with aforementioned feed system successively along the flow direction of aforementioned sept dispersion liquid, if the supply valve of the upstream side feed path that will be connected with aforementioned feed system at upstream side cuts out, and will open at the supply valve of the downstream feed path that is connected with aforementioned feed system than the close downstream of aforementioned upstream side feed path, then aforementioned sept dispersion liquid is the aforementioned conveying chamber by being connected with aforementioned upstream side feed path not, and the aforementioned conveying chamber by being connected with aforementioned downstream feed path.

The third aspect of the invention of second among the present invention is a kind of printing process, make to supply to and be divided into the sept dispersion liquid of conveying chamber of nozzle body of conveying chamber and drain chamber by aforementioned internal ramp by internal ramp, supply to aforementioned drain chamber, and discharge aforementioned sept dispersion liquid towards the printing object thing from the squit hole that is arranged at aforementioned drain chamber, wherein, aforementioned printing object thing is being discharged under the printing state of aforementioned sept dispersion liquid, the at least a portion that supplies to the aforementioned sept dispersion liquid of aforementioned conveying chamber is discharged from aforementioned conveying chamber, aforementioned printing object thing is not being discharged under the holding state of aforementioned sept dispersion liquid, aforementioned sept dispersion liquid is supplied to aforementioned drain chamber, the aforementioned sept dispersion liquid that supplies to aforementioned drain chamber is discharged from aforementioned drain chamber.

The third aspect of second invention is a kind of printing process, wherein, under aforementioned holding state, also supplies with aforementioned sept dispersion liquid to aforementioned conveying chamber, and the dispersion liquid that supplies to the aforementioned sept of aforementioned conveying chamber is discharged.

The third aspect of second invention is a kind of printing process, wherein, the aforementioned sept dispersion liquid of discharging from aforementioned conveying chamber is returned to a certain side or the both sides of aforementioned drain chamber and aforementioned conveying chamber.

The third aspect of second invention is a kind of printing process, wherein, the aforementioned sept dispersion liquid of discharging from aforementioned drain chamber is returned to a certain side or the both sides of aforementioned drain chamber and aforementioned conveying chamber.

The third aspect of second invention is a kind of printing process, wherein, under aforementioned holding state, make from the aforementioned sept dispersion liquid of aforementioned drain chamber discharge with from the aforementioned sept dispersion liquid mixing back that aforementioned conveying chamber is discharged and return to the both sides of aforementioned drain chamber and aforementioned conveying chamber.

The first aspect of second invention is a kind of head module, have: the nozzle body of inner hollow, constitute the nozzle piece of a wall of aforementioned nozzle body, be arranged on one or more squit hole on the aforementioned nozzle piece, supply unit to aforementioned nozzle body internal feed sept dispersion liquid, with discharge portion from the aforementioned sept dispersion liquid of the inner discharge of aforementioned nozzle body, the aforementioned sept dispersion liquid of supplying with from aforementioned supply unit discharges from aforementioned squit hole, wherein, the internal ramp that the inner space of aforementioned nozzle body can be passed through by aforementioned sept dispersion liquid is divided into the drain chamber of aforementioned nozzle piece side, conveying chamber with an opposite side with aforementioned nozzle piece, aforementioned supply unit has: be arranged on the waste side inflow entrance on the aforementioned drain chamber, with the supply side inflow entrance that is arranged on the aforementioned conveying chamber, aforementioned sept dispersion liquid is supplied with to aforementioned drain chamber from aforementioned waste side inflow entrance, supply with to aforementioned conveying chamber from aforementioned supply side inflow entrance, aforementioned discharge portion has: be arranged on the waste side escape hole on the aforementioned drain chamber, with the supply side escape hole that is arranged on the aforementioned conveying chamber, aforementioned sept dispersion liquid is discharged from aforementioned drain chamber and aforementioned conveying chamber respectively by aforementioned waste side escape hole and aforementioned supply side escape hole.

The first aspect of second invention is a kind of head module, wherein, has the circulation system, and the aforementioned circulation system makes the aforementioned sept dispersion liquid of discharging to aforementioned discharge portion return to aforementioned supply unit.

The first aspect of second invention is a kind of head module, wherein, the aforementioned circulation system will be mixed from the aforementioned sept dispersion liquid of aforementioned waste side escape hole discharge with from the aforementioned sept dispersion liquid that aforementioned supply side escape hole is discharged, and they are returned to aforementioned supply unit.

The first aspect of second invention is a kind of head module, wherein, the aforementioned circulation system has the surge chamber of accumulating the sept dispersion liquid, the aforementioned sept dispersion liquid that is accumulated in the aforementioned surge chamber is supplied with to aforementioned supply unit, and the aforementioned sept dispersion liquid of discharging from aforementioned discharge portion returns to aforementioned surge chamber.

The second aspect of second invention is a kind of printing equipment, have: the stocking system of accumulating the sept dispersion liquid, supply with one or more head module of aforementioned sept dispersion liquid from aforementioned stocking system, aforementioned each head module has: the nozzle body of inner hollow, constitute the nozzle piece of a wall of aforementioned nozzle body, be arranged on one or more squit hole on the aforementioned nozzle piece, supply unit to aforementioned nozzle body internal feed sept dispersion liquid, with discharge portion from the aforementioned sept dispersion liquid of the inner discharge of aforementioned nozzle body, the aforementioned sept dispersion liquid of supplying with from aforementioned supply unit discharges from aforementioned squit hole, wherein, the internal ramp that the inner space of aforementioned nozzle body can be passed through by aforementioned sept dispersion liquid is divided into the drain chamber of aforementioned nozzle piece side, conveying chamber with an opposite side with aforementioned nozzle piece, aforementioned supply unit has: be arranged on the waste side inflow entrance on the aforementioned drain chamber, with the supply side inflow entrance that is arranged on the aforementioned conveying chamber, aforementioned sept dispersion liquid is supplied with to aforementioned drain chamber from aforementioned waste side inflow entrance, supply with to aforementioned conveying chamber from aforementioned supply side inflow entrance, aforementioned discharge portion has: be arranged on the waste side escape hole on the aforementioned drain chamber, with the supply side escape hole that is arranged on the aforementioned conveying chamber, aforementioned sept dispersion liquid is discharged from aforementioned drain chamber and aforementioned conveying chamber respectively by aforementioned waste side escape hole and aforementioned supply side escape hole.

The second aspect of second invention is a kind of printing equipment, wherein, have the circulation system, the described circulation system makes the aforementioned sept dispersion liquid of discharging to aforementioned discharge portion return to aforementioned supply unit, and aforementioned sept dispersion liquid is supplied to the aforementioned circulation system from aforementioned stocking system.

In the liquid that makes the dispersed sept dispersion liquid of sept particle, the sept particle can not condense and descend, can be stably supply with the sept dispersion liquid to nozzle body, can make adopted a plurality of shower nozzles, with large substrate corresponding intervals thing blowoff practicability.

Description of drawings

Fig. 1 is the figure that an example of first printing equipment of inventing is described.

Fig. 2 is the figure that an example of first head module of inventing is described.

Fig. 3 is the amplification view of explanation example of the nozzle body of use in first invention.

Fig. 4 is other the block diagram of example of the printing equipment of explanation first invention.

Fig. 5 is the figure that an example of second printing equipment of inventing is described.

Fig. 6 is the figure that an example of second head module of inventing is described.

Fig. 7 is the amplification view of explanation example of the nozzle body of use in second invention.

Description of reference numerals

1 printing equipment

2,2 ' head module

5 stocking systems

10 induction systems

17 surge chambers

20 nozzle body

21 drain chamber

22 conveying chambers

23 inflow entrances

24 escape holes

26 nozzle pieces

30 internal ramps

32 squit holes

41 supply valves

42 exhaust valves

51 feed systems

52 discharge systems

53 connected systems

69 sept particles

100 printing equipments

102 head modules

105 stocking systems

110 circulation systems

117 surge chambers

120 nozzle body

121 drain chamber

122 conveying chambers

125 supply units

126 discharge portions

130 internal ramps

131 nozzle pieces

132 squit holes

Embodiment

＜the first invention 〉

At first, the preferred form about first invention carries out following detailed description.

The head module of Reference numeral 2 expressions first invention of Fig. 2, this head module 2 has: nozzle body 20, nozzle piece 26, little drain chamber 27, induction system 10, supply valve 41, exhaust valve 42.

The inside of nozzle body 20 makes hollow, nozzle piece 26 by a wall of nozzle body 20, be that diapire constitutes.

Little drain chamber 27 be configured in nozzle piece 26 on the face of nozzle body 20 private sides, in little drain chamber 27, be provided with piezoelectric element, so that carry out the discharging of sept dispersion liquid described later.

Inside in nozzle body 20, the wall of the little drain chamber 27 from the nozzle piece 26 and the top board side of nozzle body 20 leaves and disposes internal ramp 30, and the inner space of nozzle body 20 is divided into space between internal ramp 30 and the top board side wall surface and the space between internal ramp 30 and the little drain chamber 27 by two.

Reference numeral 21 expression of Fig. 2 is by the side walls enclose of nozzle piece 26, internal ramp 30, nozzle body 20 and dispose the drain chamber of little drain chamber 27, and Reference numeral 22 expressions of this figure are the conveying chamber 22 of the side walls enclose of top board side wall surface, internal ramp 30, nozzle body 20 by the wall with nozzle piece 26 opposite sides of nozzle body 20.

Here, the top board side wall surface of nozzle body 20 is elongated, longitudinally both ends at this top board side wall surface are provided with through hole respectively, constitute the inflow entrance 23 that the sept dispersion liquid is flowed into to conveying chamber 22 by the through hole that is arranged on an end, constitute the escape hole 24 that the sept dispersion liquid is flowed out from conveying chamber 22 by the through hole that is arranged on the other end.

The diameter of the diameter of inflow entrance 23 and escape hole 24 is compared very short respectively with the length of top board side wall surface, so inflow entrance 23 and escape hole 24 become the state that leaves configuration mutually.

Induction system 10 has: an end is connected with inflow entrance 23 and carrying path 12 that the other end is connected with the escape hole 24 and surge chamber midway 17 of carrying path 12 is set.

On surge chamber 17, be connected with an end of supply passageway 56, supply valve 41 is arranged on supply passageway 56 midway, closing supply valve 41 and blocking from feed system described later under the halted state of surge chamber 17, the sept dispersion liquid is not supplied with to surge chamber 17, and opening supply valve 41 and with allowing under the state that surge chamber 17 is connected with feed system, the sept dispersion liquid of feed system is accumulated the sept dispersion liquid to surge chamber 17 internal feeds in surge chamber 17 inside.

Head module 2 has not shown ultrasonic irradiation mechanism, because the sept dispersion liquid that is accumulated in the surge chamber 17 is stirred by the ultrasonic vibration of this ultrasonic irradiation mechanism, the sept particle does not sink, and maintains the surge chamber 17 inner states that disperse.

Not shown temperature control device is installed in surge chamber 17, rises,, cool off sept dispersion liquid in the surge chamber 17 by heat conduction then by temperature control device cooling surge chamber 17 if be accumulated in the temperature of the sept dispersion liquid in the surge chamber 17.Therefore, even be heated, also can be maintained the temperature of this sept dispersion liquid constant all the time owing to ultrasonic irradiation makes the sept dispersion liquid in the surge chamber 17.

Head module 2 has the not shown amount of liquid sensor of the amount of liquid that detects surge chamber 17 inside, when the amount of liquid in surge chamber 17 inside does not reach specialized range, supply valve 41 becomes allows state, on the contrary, when the amount of liquid in surge chamber 17 inside surpassed specialized range, supply valve 41 became halted state.Therefore, when the amount of liquid that makes surge chamber 17 inside owing to printing reduces, replenish the sept dispersion liquid, make the amount of liquid of surge chamber 17 inside be in specialized range all the time from feed system.

The Reference numeral 67a of Fig. 2 represents to be accumulated in the sept dispersion liquid in the surge chamber 17, and Fig. 2 represents that the amount of liquid of sept dispersion liquid 67a does not arrive specialized range, and supply valve 41 is the state when allowing state.

The connector of carrying paths 12 in two connectors that are connected with surge chamber 17 of carrying path 12, inflow entrance 23 sides is positioned at when the amount of liquid of sept dispersion liquid 67a is in specialized range on liquid level than this sept dispersion liquid 67a position below leaning on.

Here, nozzle body 20 is positioned at than surge chamber 17 to be leaned on the position of below, and the sept dispersion liquid 67a in the surge chamber 17 wander in this carrying path 12 from the connector of the carrying path 12 of inflow entrance 23 sides, arrive inflow entrance 23.The sept dispersion liquid if from inflow entrance 23 to conveying chamber 22 internal feeds, then between inflow entrance 23 and escape hole 24, flow.

Fig. 3 is the amplification view of nozzle body 20.Internal ramp 30 is had like that by screening filtrator or nonwoven fabrics makes solution constitute by the filtrator of its inner path.The part of the sept dispersion liquid that flows towards escape hole 24 from inflow entrance 23 is carried by the path of internal ramp 30 and to drain chamber 21.

The Reference numeral 67 expression sept dispersion liquids of Fig. 3, sept dispersion liquid 67 is made of solvent 68 and the sept particle 69 that is dispersed in the solvent 68.The path of internal ramp 30 is made as more than the twice of diameter of sept particle 69, therefore, sept dispersion liquid 67 sept particle 69 by dispersed state under, to drain chamber 21 carryings.

Between nozzle piece 26 and internal ramp 30, dispose the piezoelectricity support plate 35 that is provided with a plurality of holes in the mode of leaving from nozzle piece 26, little drain chamber 27 is configured between nozzle piece 26 and the piezoelectricity support plate 35.

On nozzle piece 26, be provided with one or more squit hole 32, here, squit hole 32 is a plurality of, each of each squit hole 32 is provided with a little drain chamber 27.

The piezoelectric element 36 of little drain chamber 27 is separately positioned near each squit hole 32 the position, by making near piezoelectric elements 36 vibrations the squit hole 32 that is positioned at expectation, and can make 67 dischargings of sept dispersion liquid from the squit hole 32 of expectation.

In addition, piezoelectric element 35 can be used as the next door of distinguishing the little drain chamber 27 that adjoins each other and is provided with, and also can be arranged on the sidewall of little drain chamber 27.

If sept dispersion liquid 67 is discharged, the sept dispersion liquid of drain chamber 21 is consumed, and then the height of the face (meniscus) that contacts with atmosphere of the sept dispersion liquids 67 in the squit hole 32 changes.

The Reference numeral 8 expression meniscus control gears of Fig. 2, surge chamber 17 is connected with the container 80 of meniscus control gear 8.Be accumulated in sept dispersion liquid or solvent in this container 80, the height of its liquid level and above-mentioned meniscus links and changes.

The liquid level of sept dispersion liquid 67a in the surge chamber 17 is by not shown level sensor and detected, by the mechanism of decompressor that is connected with this level sensor, so that meniscus turns back to both modes of take the altitude, sept dispersion liquid or solvent are supplied to surge chamber 17 from container 80.

Promptly, in this head module 2, supply with the sept dispersion liquid and carry out inching to head module 2 from feed system 51 by control by the amount of liquid in 8 pairs of head modules 2 of meniscus control gear, can be maintained the amount of liquid in the head module 2 constant all the time, as a result, the discharging of sept dispersion liquid 67 can stably be carried out.

Turn back to the carrying path 12 from escape hole 24 by sept dispersion liquid in the sept dispersion liquid of conveying chamber 22, that do not supply with to drain chamber 21.

Exhaust valve 42 is installed on the escape hole 24 and the position between the surge chamber 17 of carrying path 12.

The drain passageway that Reference numeral 57 expression one end of Fig. 2 is connected with discharge described later system, the other end of drain passageway 57 is connected with carrying path 12 via exhaust valve 42.If switch exhaust valve 42, carrying path 12 is made as the discharge state that is connected with the discharge system, then the sept dispersion liquid that turns back to the carrying path 12 from escape hole 24 is discharged in the discharge system by drain passageway 57, but if switch exhaust valve 42, be made as the recurrent state of blocking carrying path 12 from the discharge system, then turn back to drain passageway can not flowed out to drain passageway 57 carrying path 12 from escape hole 24.

On carrying path 12, on the position between escape hole 24 and the surge chamber 17, ebullator 15 is installed, under above-mentioned recurrent state, the sept dispersion liquid that turns back in the carrying path 12 is extruded to surge chamber 17 under the effect of ebullator 15.

The sept dispersion liquid that is expressed into surge chamber 17 is carried towards inflow entrance 23 once more, so if make ebullator 15 actions under recurrent state, then sept dispersion liquid 67 circulates between surge chamber 17 and conveying chamber 22.

In addition, between inflow entrance 23 and surge chamber 17, be provided with external filter 19.External filter 19 passes through the sept particle, but can remove the object bigger than sept particle (coagulum that comprises assorted bits, sept particle).Therefore, only be dispersed with the sept dispersion liquid 67 arrival inflow entrances 23 of sept particle.

Then, first printing equipment of inventing that has used this head module 2 is described.One example of the printing equipment of Reference numeral 1 expression first invention of Fig. 1.

Printing equipment 1 has stocking system 5, circulation path 50 and one or more above-mentioned head module 2.Here, have four head modules 2, on each parts of each head module 2 and head module 2, add word a～d respectively and distinguish.

Stocking system 5 has reservoir vessel 58 and buffering container 59.Inside at reservoir vessel 58, accumulate have in solvent, disperseed resin particle, be the sept dispersion liquid of sept particle, this sept dispersion liquid supplies to the buffer container 59 from reservoir vessel 58 by charge pump 79, temporarily be accumulated in buffer container 59 inside, and the unnecessary sept dispersion liquid that is accumulated in the buffer container 59 is turned back in the reservoir vessel 58.

In reservoir vessel 58 and buffering container 59, be respectively arranged with not shown rabbling mechanism, be accumulated in reservoir vessel 58 sept dispersion liquids inner and buffering container 59 inside respectively and be stirred mechanism's stirring all the time, the sept particle can not sink, and keeps all the time by dispersed state.

Circulation path 50 is made of with the pipe that buffer container 59 is connected with the other end an end, in the circulation path 50 be provided with systemic circulation pump 55 midway, if make this systemic circulation pump 55 actions, then the sept dispersion liquid of buffer container 59 is introduced in an end of circulation path 50, and in the circulation path flow towards the other end in 50 inside, turn back to buffer container 59 from the other end then.

If a side of the introducing sept dispersion liquid of circulation path 50 is made as the upstream, a side that is discharged to buffer container 59 is made as the downstream, and then supply passageway 56a～56d of each head module 2a～2d is connected to upstream one distolateral of circulation path 50 one by one successively towards the downstream from the upstream.

Reference numeral 51 expression of Fig. 1 is than the position of the supply passageway 56d that is connected with downstream, circulation path 50 feed system by the part of upstream side, and the sept dispersion liquid that flows in feed system 51 is from surge chamber 17 supplies of supply passageway 56a～56d to each head module 2a～2d.

Drain passageway 57a～57d of each head module 2a～2d leans on the position, downstream than feed system 51 in circulation path 50, be connected successively one by one towards the downstream from the upstream.Reference numeral 52 expression of Fig. 1 is than the position of the drain passageway 57d that is connected with the upstream side in the circulation path 50 discharge system by the part in downstream, turns back to the discharge system 52 from the sept dispersion liquid of each head module 2a～2d discharge.

The drain passageway 57d of upstream side more is connected with circulation path 50 in the downstream at the supply passageway 56d than downstream.Therefore, to head module 2a～2d supply with and the sept dispersion liquid that do not passed through feed system 51 by the part between the drain passageway 57d of supply passageway 56d in the circulation path 50, downstream and upstream side, and be discharged in the discharge system 52.The connected system of the part between the drain passageway 57d of supply passageway 56d in the Reference numeral 53 expression circulation paths 50 of Fig. 1, downstream and upstream side, this connected system is connected feed system 51 with discharge system 52.

Then, the example to the operation of using this printing equipment 1 pressroom parting dispersion liquid describes.Allow state in that each supply valve 41 is placed, each exhaust valve 42 is placed under the state of recurrent state, make 55 actions of systemic circulation pump.Even each supply passageway 56a～56d is being placed under the situation of allowing state, the flow of the sept dispersion liquid that flows in feed system 51 is for the sept dispersion liquid of supplying with to the supply passageway 56d that is positioned at downstream from the supply passageway 56a that is positioned at upstream, be made as enough flows, so in the surge chamber 17 of each head module 2a～2d, accumulate the sept dispersion liquid.

If each supply valve 41 is placed halted state, and each exhaust valve 42 is placed recurrent state, make ebullator 15 actions, then as mentioned above, the sept dispersion liquid is circulation between surge chamber 17 and conveying chamber 22 in each head module 2a～2d.

If will be configured in as the substrate of printing object thing on the nozzle piece 26 opposed positions with each head module 2a～2d, and from being positioned at the squit hole 32 discharge interval thing dispersion liquids directly over the printing position that substrate should print, then coating (printing) sept dispersion liquid on the printing position of substrate.

Because the sept particle sinks easily, so if the sept dispersion liquid does not move in nozzle body inside, sept separate particles then, at every turn from the quantity change of the sept particle of squit hole 32 dischargings, but if make the circulation between surge chamber 17 and conveying chamber 22 all the time of sept dispersion liquid when printing, then the sept dispersion liquid can not sink in head module 2 inside.

If keep the circulation of above-mentioned sept dispersion liquid, then flow all the time at conveying chamber 22 inner spacer dispersion liquids, but because the extrusion capacity of ebullator 15 is certain, so from squit hole 32 discharge interval thing dispersion liquids the time and when not discharging, the change in flow of the sept dispersion liquid that in conveying chamber 22, flows.

The vibration control of the liquid level that is caused by piezoelectric element 36 from the amount of squit hole 32 discharging, if the flow velocity change by the sept dispersion liquid on the squit hole 32, the pressure that then puts on the squit hole 32 also changes, and departs from the anticipation amount from the amount of squit hole 32 dischargings.

In first invention, the mobile of sept dispersion liquid is to produce in the conveying chamber 22 that is separated by internal ramp 30 and drain chamber 21, even, can not bring influence in conveying chamber 22 to the pressure that squit hole 32 is subjected to so the flow velocity of the sept dispersion liquid that flows has change slightly yet.Therefore, discharge the amount of having been controlled by piezoelectric element 36 all the time, can carry out stable discharging from squit hole 32.

If when printing, make 55 actions of systemic circulation pump all the time, then supply with the sept dispersion liquid to feed system 51.When the amount of liquid in the discharging owing to squit hole 32 makes surge chamber 17 was lower than ormal weight, supply valve 41 is placed in allowed state, accumulates the state that the sept dispersion liquid is arranged in the surge chamber 17 so maintain.

In addition, when supply valve 41 was placed in halted state, the sept dispersion liquid that flows in feed system 51 did not pass through head module 2a～2d, and is sent to discharge system 52 by connected system 53, and returns to buffer container 59.

Like this, even when the sept dispersion liquid is not sent to head module 2a～2d, the sept dispersion liquid is circulation between circulation path 50 and buffering container 59 also, can be in the circulation path 50 inner stagnations, so the sept particle can be in the circulation path yet 50 sinking midway.

Because the sept particle sinks easily,, preferably keep circulation and the interior circulation of each head module 2a～2d between circulation path 50 and the buffering container 59 all the time so for example end at short notice under the situation of printing.

Describe cleaning its inner wiper mechanism for printing equipment 1 is stopped for a long time, printing equipment 1 has except having feed system 51: disposed the clean container 71 of the such cleaning fluid of organic solvent and the cleaning path 72 of carrying this cleaning fluid.

With reference to Fig. 1, Fig. 2, cleaning on the path 72, be connected with an end of the purge pipe 75 of each head module 2a～2d, if open the transfer valve 76 that is arranged on the purge pipe 75, then supply with cleaning fluid to purge pipe 75 from cleaning path 72.

Purge pipe 75 is branched off into waste side pipe arrangement 73 that is connected with drain chamber 21 and the carrying path side line 74 that is connected with carrying path 12, switching by take-off pipe 77, purge pipe 75 is blocked and is connected with waste side pipe arrangement 73 from carrying path side line 74, then wash liquid stream is to waste side pipe arrangement 73, when opening the discharging side valve 78 that waste side pipe arrangement 73 is provided with midway, cleaning solution supplying is to drain chamber 21, and drain chamber 21 inside are cleaned liquid and clean.Cleaning fluid after the cleaning is discharged to the outside from squit hole 32.

Carrying path side line 74 is connected with carrying path 12 between surge chamber 17 and external filter 19.Switching by branch valve 77, supply with cleaning fluid to carrying path side line 74, switching when the carrying path side valve 79 that passes through carrying path side line 74 is connected with carrying path 12, and make cleaning fluid when external filter 19 1 side flow of carrying path 12, utilize cleaning fluid to clean external filter 19 and conveying chamber 22.At this moment, if exhaust valve 42 is made as the discharge state, the sept dispersion liquid after then cleaning is discharged to discharge system 52, and discharges to drain vessel 3 from discharge system 52.

More than, the situation of supplying with the sept dispersion liquid simultaneously in each head module 2a～2d and print is illustrated, but first invention is not limited thereto, in the also optional majority head module one or more prints, and after this printing finishes, print by remaining head module.

The situation of ebullator 15 being extruded the sept dispersion liquid does not limit, even ebullator 15 circulates the sept dispersion liquid by sucking the sept dispersion liquid in circulation path 12, these two kinds of pumps of extruder pump and suction pump also can further be set, in addition, it is provided with the place the getting final product of carrying path 12 midway, also can be not on the position between escape hole 24 and the surge chamber 17.In a word, as long as ebullator 15 can make the sept dispersion liquid circulate between induction system 10 and conveying chamber 22.

More than, be illustrated making sept dispersion liquid round-robin situation in head module 2, but first invention is not limited thereto.

The Reference numeral 2 of Fig. 4 ' the be illustrated in head module of the printing equipment 1 ' middle use of other examples.The surge chamber 17 of this head module 2 ' have and head module shown in Figure 22 same configuration, external filter 19, with nozzle body 20, but the conveying chamber 22 of nozzle body 20, external filter 19, surge chamber 17 in series is connected in feed system 51 and the discharge system 52, supply valve 41 is being made as when allowing state, the sept dispersion liquid of supplying with from feed system 51 passes through surge chamber 17, with external filter 19, and pass through inflow entrance 23 and in conveying chamber 22, supply with, behind the inside of flowing through conveying chamber 22, do not turn back to surge chamber 17 and discharge to discharge system 52 from escape hole 24.

Reference numeral 81 expressions of Fig. 4 are from the feed path of feed system 51 to inflow entrance 23 supply sept dispersion liquids, and the Reference numeral 82 expression sept dispersion liquids of this figure turn back to the discharge path of discharge system 52 from escape hole 24.

This printing equipment 1 ' except head module 2 ', have and printing equipment shown in Figure 11 identical construction, the sept dispersion liquid that turns back to discharge system 52 returns to surge chamber 59, supplies with to feed system 51 once more under the effect of systemic circulation pump 55.That is, this printing equipment 1 ' in, the sept dispersion liquid circulates between stocking system 5, feed system 51, feed path 81, conveying chamber 22, discharge path 82 and discharge system 52, can not stagnate, so the sept particle is difficult for.

Therefore, while if the circulation of sept dispersion liquid is printed, then the number of the sept particle from the drop of squit hole 32 dischargings can not produce inequality.

This printing equipment 1 ' in, also plural head module 2 ' respectively can be connected with discharge system 52 with identical feed system 51, in this case, if will be positioned at the head module 2 of the upstream side of feed system 51 ' supply valve 41 be made as and allow state, then the sept dispersion liquid is preferentially to this head module 2 ' supply.In addition, if will be positioned at the head module 2 of upstream side ' supply valve 41 be made as halted state, then the sept dispersion liquid that in feed system 51, flows preferentially to this head module 2 ' the head module 2 ' flow of downstream adjacency.In addition, if the amount of the sept dispersion liquid that will flow in feed system 51 is set enough greatly, then can be simultaneously to a plurality of head modules 2 ' supply sept dispersion liquid, make the sept dispersion liquid in a stocking system 5, feed system 51, a plurality of head module 2 ' and 52 circulations of a discharge system.

There is no particular limitation to be used for the kind of sept particle of first invention, for example can use the sept particle that diameter 4 μ m are above, 6 μ m are following.

In first invention, the kind of internal ramp 30 also is not particularly limited, get final product so long as be difficult to adsorb the material of the sept particle in the sept dispersion liquid, can use various parts such as nonwoven fabrics, metallic filtrator, the diameter of the path that the sept particle passes through is preferably more than the twice of diameter of sept particle.

In first invention, also there is no particular limitation for the shape of squit hole 32 and size, but consider stable emission performance, preferably has the above diameter of twice of diameter of the path of internal ramp 30.In addition, the big I of the squit hole 32 of nozzle piece 26 is selected according to the discharging drop size as purpose, but its diameter is preferably more than the 2 μ m, below the 40 μ m.

In addition, in first invention, the ultrasonic irradiation in the surge chamber 17 can only shine when its head module 2 prints, and also can continue irradiation when not printing by head module 2.When carrying out ultrasonic irradiation, can carry out ultrasonic irradiation continuously, also can intermittently carry out ultrasonic irradiation.

More than, the situation that temperature control device only is set in surge chamber 17 is illustrated, but first invention is not limited thereto, for example externally in the filtrator 19 temperature control device is set, temperature based on the sept dispersion liquid of measuring, external filter 19 is heated or cools off, thereby can will be set at both fixed temperatures by the sept dispersion liquid behind the external filter 19.The temperature control of sept dispersion liquid can be carried out in a certain side of surge chamber 17 and external filter 19, also can carry out in both sides.

More than, near control the discharging of squit hole 32 squit hole 32 in the piezoelectric element mode that piezoelectric element is set situation is illustrated, but the control method of discharging is not limited thereto in first invention, also can adopt spray foam (for registered trademark) mode, heat to penetrate variety of ways such as mode.

The evaluation test of＜the first invention 〉

[sept particulate emissions number]

By above-mentioned Fig. 1, printing equipment 1 shown in Figure 2, carry out the printing of the sept dispersion soln sold on the market, and the sept number in the drop of discharging is estimated.

In addition, the sept dispersion liquid is to make for sept scatters the sept particle of selling on the market of using and making to be scattered in the ethanol class mixed solvent, remove concrement by filtrator in advance, and adjust and the material that obtains, the particle diameter that uses the sept particle is that the concentration of 4.1 μ m, sept particle is adjusted into the material of 0.1wt%.

At nozzle (squit hole 32) diameter is under the situation of 28 μ m, and the discharging drop is of a size of 20pl, and the sept number in drop is 3.2 ± 0.2.

And then, be under the situation of 23 μ m at nozzle diameter, the discharging drop is of a size of 8pl, and the sept number in drop is 2.0 ± 0.9.

As can be known from these results, can control the sept number in discharging drop size and the drop by changing nozzle diameter.

[test of discharging estimation of stability]

Use Fig. 1, printing equipment 1 shown in Figure 2, for the round-robin situation (embodiment 1) of in circulation path 50 and head module 2, carrying out the sept dispersion liquid in these two, only in circulation path 50, carry out the round-robin situation (comparative example 1) of sept dispersion liquid, in circulation path 50 and head module 2, carry out the circulation of sept dispersion liquid in the two, and simultaneously to being accumulated in the situation (embodiment 2) that surge chamber 17 interior sept dispersion liquids carry out ultrasonic irradiation, carry out the continuous blow-down of sept dispersion liquid from squit hole 32, and the number of spacers in the drop is estimated during to continuous blow-down.

The results are shown in the following table 1.

[table 1]

Table 1: the sept number under the various operating conditions in the drop (first invention)

Can recognize from above-mentioned table 1, in head module 2, not make in the sept dispersion liquid round-robin comparative example 1 that the quantity of observing sept reduced to 1.5 ± 1.0 from 2.0 ± 0.9 of the initial stage after 60 minutes.On the other hand, make in head module 2 among the sept dispersion liquid round-robin embodiment 1, number of spacers is 1.9 ± 0.9 after 60 minutes, sees the improvement for the minimizing of number of spacers.And then, carrying out among the embodiment 2 of ultrasonic irradiation,, do not change even after 60 minutes when circulation time in head module 2 yet, confirm the effect of discharging stability.

After continuous blow-down in 60 minutes, when carrying out the evaluation of the number of spacers behind the flushing operation of circulation, head module 2 of ultrasonic irradiation, sept dispersion liquid in the head module 2, even in head module 2, do not have under the round-robin situation, also can pass through attended operation, and return to 2.0 ± 0.9 of initial stage.

So as can be known: by in head module 2, making the circulation of sept dispersion liquid, more preferably be that the sept dispersion liquid in the head module 2 is carried out ultrasonic irradiation, can improve discharging stability.

＜the second invention 〉

Then, the preferred form about second invention carries out following detailed description.

One example of the head module of Reference numeral 102 expressions second invention of Fig. 6, this head module 102 of this head module has: nozzle body 120, nozzle piece 131, supply unit 125, discharge portion 126, the circulation system 110.

The inside of nozzle body 120 makes hollow, nozzle piece 131 by a wall of nozzle body 120, be that diapire constitutes.Inside in nozzle body 120, leave from the wall with nozzle piece 131 opposition sides of nozzle piece 131 and nozzle body 120 and dispose internal ramp 130, the inside of nozzle body 120 is divided into space between internal ramp 130 and the wall and the space between internal ramp 130 and the nozzle piece 131 by two.

Reference numeral 121 expression of Fig. 6 is by the drain chamber of the side walls enclose of nozzle piece 131, internal ramp 130, nozzle body 120, and Reference numeral 122 expressions of this figure are by the conveying chamber of the side walls enclose of nozzle body 120 and walls nozzle piece 131 opposite sides, internal ramp 130, nozzle body 120.

Induction system 110 has: the circulation path 111 and surge chamber midway 117 of circulation path 111 is set.On surge chamber 117, be connected with an end of supply passageway 156, if the supply valve 141 that will be arranged on the supply passageway 156 is opened, then surge chamber 117 is connected with systemic circulation path 150 described later, and the sept dispersion liquid that flows in systemic circulation path 150 flow in the surge chamber 117.

Surpass set amount if flow into the amount of liquid of the sept dispersion liquid in the surge chamber 117, then the end side to circulation path 111 flows out.Surge chamber 117 is connected with meniscus control gear 108 described later, and meniscus control gear 108 is for the inching of carrying out meniscus and carry out the exchange of sept dispersion liquid or solvent between the surge chamber 117.

If supply with sept dispersion liquid or solvents to surge chamber 117, then in surge chamber 117, mix and accumulate with sept dispersion liquid from 150 supplies of systemic circulation path from meniscus control gear 108.

The Reference numeral 167a of Fig. 6 represents to be accumulated in the sept dispersion liquid in the surge chamber 117.

One end of circulation path 111 is connected with supply passageway 125, and the other end is connected with discharge portion 126.Connector in two connectors that are connected with surge chamber 117 of circulation path 111, the supply unit side, when the amount of liquid of the sept dispersion liquid 167a in surge chamber 117 was in specialized range described later, the liquid level that is positioned at than this sept dispersion liquid 167a leaned on the position of below.

Surge chamber 117 is positioned at than supply unit 125 and leans on the position of top, and the sept dispersion liquid 167a in the surge chamber 17 wander in this circulation path 111 from the connector of the circulation path 111 of supply unit 125 sides.

Supply unit 125 has: first, second supply pipe 113,114, one ends are connected with an end of circulation path 111 respectively; Supply side transfer valve 143 is arranged on the link position place of first, second supply pipe 113,114 and circulation path 111; Supply side inflow entrance 123 is arranged on the wall of conveying chamber 122, is connected with the other end of first supply pipe 113; With drain chamber effluent inlet 124, be arranged on the wall of drain chamber 121, be connected with the other end of second supply pipe 114.

Therefore, conveying chamber 122 is connected with supply side transfer valve 143 with first supply pipe 113 via supply side inflow entrance 123, drain chamber 121 is connected with supply side transfer valve 143 with second supply pipe 114 via drain chamber effluent inlet 124, switching by supply side transfer valve 143, surge chamber 117 is connected with a certain side or both sides in the conveying chamber 122 via circulation path 111 and drain chamber 121, and the sept dispersion liquid that flows in circulation path 111 flows into a certain side or the both sides of drain chamber 121 and conveying chamber 122.

Be provided with first, second external filter 137,138 midway at first, second supply pipe 113,114, passed through external filter at 137,138 o'clock at the sept dispersion liquid, particle piece and dust behind the sept particle condensation are removed, and dust is removed and the sept dispersion liquid of the dispersed state of sept particle so supply with in drain chamber 121 and conveying chamber 122.

With reference to Fig. 7, on nozzle piece 131, be provided with one or more squit hole 132.

Nozzle piece 131 is provided with the piezoelectricity support plate 135 with a plurality of holes, on nozzle piece 131 and the nozzle piece 131 and piezoelectricity support plate 135 between the position on, near position squit hole 132 is respectively arranged with piezoelectric element 136.Under the state that stops to print, by piezoelectric element 136 near the pressure the squit hole 132 is made as below the set pressure, so that sept dispersion liquid 167 can be from squit hole 132 dischargings.

Discharge portion 126 has: conveying chamber side escape hole 127, drain chamber side escape hole 128, first, second vent pipe 118,119, on the position of leaving with supply side inflow entrance 123 that conveying chamber side escape hole 127 is arranged on conveying chamber 122 walls, drain chamber side escape hole 128 be arranged on drain chamber 121 walls with drain chamber effluent inlet 124 positions of leaving on.

First vent pipe, 118 1 ends are connected with conveying chamber side escape hole 127, survey escape hole 127 mobile sept dispersion liquids in conveying chamber 122 inside from supply side inflow entrance 123 when carrying and discharge to first vent pipe 118.

On the other hand, second vent pipe, 119 1 ends are connected with drain chamber side escape hole 128, discharge to second vent pipe 119 towards the sept dispersion liquid that drain chamber side escape hole 128 flows from drain chamber effluent inlet 124 in drain chamber 121 inside.

Be connected with the end that is connected with first, second supply pipe 113,114 1 side opposition sides on the other end of first vent pipe 118 and the circulation path 111, the other end of second vent pipe 119 is connected with the other end of drain passageway 157, and described drain passageway 157 1 ends are connected with systemic circulation path described later.

The link position that first vent pipe 118 is connected with circulation path 111 interconnects by connecting pipe 149 with the link position that second vent pipe 119 is connected with drain passageway 157.

On link position, be respectively arranged with transfer valve 142,144.The transfer valve 142 of the link position by being arranged at first vent pipe 118 and circulation path 111 and be arranged at the switching of transfer valve 144 of the link position of second vent pipe 119 and drain passageway 157, some connection the in drain chamber 121 and conveying chamber 122 and circulation path 111 and the drain passageway 157, the distance piece dispersion liquid that is discharged to first vent pipe 118 from conveying chamber 122 is discharged to circulation path 111 or drain passageway 157, and the distance piece dispersion liquid that is discharged to second vent pipe 119 from discharge chamber 121 is discharged to circulation path 111 or drain passageway 157.

Here, the discharge portion 126 of circulation path 111 and the position between the surge chamber 117 are provided with ebullator 115, the distance piece dispersion liquid that is discharged to circulation path 111 from discharge portion 126 returns to surge chamber 117 under the action of ebullator 115, once more to supply unit 125 feeds.

Therefore, not when discharge portion 126 is discharged to drain passageway 157, the sept dispersion liquid circulates between surge chamber 117, supply unit 125, discharge portion 126 at the sept dispersion liquid.

In surge chamber 117, be provided with not shown rabbling mechanism, if this rabbling mechanism action, then ultrasound wave shines on the sept dispersion liquid of surge chamber 117 inside off and on or continuously, and by this ultrasound wave mixing chamber parting dispersion liquid, the sept particle becomes the state that evenly is scattered here and there.

Therefore, all become evenly in surge chamber 117 inner disperse staties from systemic circulation path 150 new sept dispersion liquids of supplying with and the sept dispersion liquid that turns back to the surge chamber 117 from discharge portion 126, and in head module 102 inner loop.

In surge chamber 117, be provided with not shown temperature control device, surpass design temperature if be accumulated in the temperature of the sept dispersion liquid of surge chamber 117 inside, then, cool off the sept dispersion liquid of surge chamber 117 inside by heat conduction by temperature control device cooling surge chamber 117.Therefore, even be heated, also can be maintained the temperature of this sept dispersion liquid constant all the time owing to ultrasonic vibration makes the sept dispersion liquid in the surge chamber 117.

Then, the example to the printing equipment that used this head module 102 describes.

One example of the printing equipment of Reference numeral 100 expressions second invention of Fig. 5, this printing equipment 100 has stocking system 105, systemic circulation path 150 and one or more above-mentioned head module 102.Here, printing equipment 100 has four head modules 102, adds word a～d respectively and distinguish on each parts of each head module 102 and head module 102.

Stocking system 105 has reservoir vessel 158 and buffering container 159.Accumulating in the inside of reservoir vessel 158 has the sept dispersion liquid, this sept dispersion liquid supplies to the buffer container 159 from reservoir vessel 158 by charge pump 179, temporarily be accumulated in buffer container 159 inside, and the unnecessary sept dispersion liquid that is accumulated in the buffer container 159 is turned back in the reservoir vessel 158.

In reservoir vessel 158 and buffering container 159, be respectively arranged with not shown rabbling mechanism, be accumulated in reservoir vessel 158 sept dispersion liquids inner and buffering container 159 inside respectively and be stirred mechanism's stirring, thereby keep the disperse state that the sept particle is evenly dispersed.

Systemic circulation path 150 two ends are connected with buffer container 159, if make systemic circulation pump 155 actions that are arranged on the systemic circulation path 150, then the sept dispersion liquid of accumulating in the buffer container 159 is introduced in systemic circulation path 150, and in systemic circulation path 150, flow towards the other end from an end, turn back to buffer container 159 then.That is,, the sept dispersion liquid is circulated between buffer container 159 and systemic circulation path 150 by the action of systemic circulation pump 155.

If a side of supplying with the sept dispersion liquid from buffering container 159 of systemic circulation path 150 is made as upstream side, with the sept dispersion liquid to another distolateral downstream that is made as that buffer container 159 returns, then feed path 156a～156d of head module 102a～102d is connected with systemic circulation path 150 towards the downstream successively from upstream side, if open the supply valve 141 that is arranged on supply passageway 156a～156d, and systemic circulation path 150 is connected with surge chamber 117, then the sept dispersion liquid flows into surge chamber 117 from systemic circulation path 150.

Systemic circulation path 150 constitutes, wherein flow sept dispersion liquid more than the total amount of the sept dispersion liquid that flows among each supply passageway 156a～156d is arranged, so if open each supply valve 141 simultaneously, then the sept dispersion liquid not only arrives the supply passageway 156a of upstream side, also arrive the supply passageway 156d in downstream, finally in all head module 102a～102d, supply with the sept dispersion liquid.

In surge chamber 117, be provided with not shown amount of liquid control gear, the amount of liquid control gear detects the amount of liquid of surge chamber 117 inside, when its amount of liquid is lower than setting range, surge chamber 117 is connected with systemic circulation path 150 and supplies with the sept dispersion liquids to surge chamber 117, on the contrary, when the amount of liquid of surge chamber 117 inside surpasses setting range, surge chamber 117 is blocked from systemic circulation path 150, and stop the supply of sept dispersion liquid.

In addition, in the container 180 of meniscus control gear 108, accumulate damping fluids such as sept dispersion liquid or solvent are arranged, the height of the face (meniscus) that the liquid level of the damping fluid in the container 180 and sept dispersion liquid in squit hole 132 contact with atmosphere links and changes, meniscus control gear 180 is under the effect of the mechanism of decompressor, from the damping fluid of container 180, meniscus is maintained constant state all the time to the surge chamber 117 supplies amount corresponding with this variation.

Promptly, in this head module 102, carry out inching from systemic circulation path 150 to the supply of the sept dispersion liquid of head module 102 and by the amount of liquid in 108 pairs of head modules 102 of meniscus control gear by control, can be maintained the amount of liquid in the head module 102 constant all the time, as a result, the discharging of sept dispersion liquid can stably be carried out.

Drain passageway 157a～157d of each head module 102a～102d is connected with systemic circulation path 150 on the position than the more close downstream of supply passageway 156d that is positioned at downstream, the sept dispersion liquid of discharging from the discharge portion 126 of each head module 102a～102d returns buffer container 159 once more after systemic circulation path 150 is discharged.

In addition, this printing equipment has the wiper mechanism 170 that each head module 102a～102d is cleaned.Wiper mechanism 170 has: the clean container 171 that is filled with the such cleaning fluid of organic solvent is connected with clean container 171 with an end and cleaning path 172 that the other end is connected with systemic circulation path 150.

Here, cleaning the position of path 172 between the link position of the link position of supply passageway 156a～156d and drain passageway 157a～157d is connected with systemic circulation path 150.

The cleaning fluid of clean container 171, was discharged to drain vessel 103 from systemic circulation path 150 before buffer container 159 feeds by cleaning path 172 and systemic circulation path 150.

Cleaning on the path 172, be connected with an end of the purge pipe of each head module 102a～102d.With reference to Fig. 6, if a head module 102 is described, then ought open the transfer valve midway 176 that is arranged at purge pipe 175, then clean the cleaning fluid in path 172 and supply with to purge pipe 175.

Here, the other end of purge pipe 175 is connected with second supply pipe 114 midway, be arranged on transfer valve 177 and supply side transfer valve 143 on its link position by switching, purge pipe 175 is connected with a side or the both sides of first, second supply pipe 113,114, when supplying with cleaning fluid, the pipe that is connected with purge pipe 175 is blocked from surge chamber 117, stops the supply of sept dispersion liquid.

As mentioned above, first supply pipe 113 is connected with conveying chamber 122, second supply pipe 114 is connected with drain chamber 121, so when when first, second supply pipe 113,114 is supplied with cleaning fluid, cleaning fluid is fed into drain chamber 121 or conveying chamber 122, the sept dispersion liquid that residues in inside is cleaned liquid and washes away, and discharges to first, second vent pipe 118,119 with other impurity.

If pass through the switching of the transfer valve 142,144 of discharge portion 126, the cleaning fluid of discharging to first, second vent pipe 118,119 is discharged to drain passageway 157, then cleaning fluid is discharged to systemic circulation path 150 from drain passageway 157, do not return buffer container 159, and be discharged to drain vessel 103 from systemic circulation path 150.

Then, to using this printing equipment 100, the method as the substrate of printing object thing ejection sept dispersion liquid being described.

Make on one side 155 actions of systemic circulation pump, make the circulation between systemic circulation path 150 and buffering container 159 of sept dispersion liquid,, be maintained the amount of liquid of surge chamber 117 inside of each head module 102a～102d constant on one side by the amount of liquid control gear.

Under this state, if make ebullator 115 actions of each head module 102a～102d, and switching supply side transfer valve 143, transfer valve 142 with discharge portion 126,144, so that first, second supply pipe 113,114, first, second vent pipe 118,119 are connected with surge chamber 117, then the sept dispersion liquid in drain chamber 121 inner and conveying chamber 122 inner mobile in these two, the sept dispersion liquid that in drain chamber 121, flows, in circulation path 111, mix equally with the sept dispersion liquid that in conveying chamber 122, flows, by surge chamber 117, once more to supply unit 125 side feeds.

At this moment, the sept dispersion liquid neither can be stagnated in drain chamber 121 inside, also can not stagnate in conveying chamber 122 inside, has kept the state that flows, so the sept particle can not sink in liquid, can keep dispersed state.

Keep this state on one side, Yi Bian carry out contraposition, so that the nozzle piece 131 of each head module 102a～102d and opposed as the substrate of printing object thing, and make squit hole 132 opposed with the printing position of substrate.

If make and corresponding piezoelectric element 136 vibrations of squit hole 132 directly over the printing position, then from this squit hole 132 towards printing position discharge interval thing dispersion liquid 167.

Just will be the time from squit hole 132 discharge interval thing dispersion liquids 167, if keep sept dispersion liquid round-robin state between surge chamber 117 and conveying chamber 122 on one side, switch the transfer valve 142 of supply side transfer valve 143, discharge portion 126 on one side, the two blocks from drain passageway 157 and surge chamber 117 so that with drain chamber 121, then the sept dispersion liquid is arranged, but the sept dispersion liquid is arranged drain chamber 121 inner not flowing in conveying chamber 122 internal flows.

If during squit hole 132 discharge interval thing dispersion liquids 167 (printing state), keep this state, then can not change squit hole 132 is brought influence, so can be from the both quantitative sept dispersion liquid 167 of squit hole 132 dischargings because of the mobile pressure that causes of sept dispersion liquid 167.

When from squit hole 132 discharge interval thing dispersion liquids 167, the amount of liquid of the sept dispersion liquid in the drain chamber 121 is less, but be formed with the not shown path that sept particle 169 in the sept dispersion liquid and solvent 168 can pass through in internal ramp 130, so sept dispersion liquid 167 replenishes by the path of internal ramp 130 and to drain chamber 121.

Under printing state, supply with sept dispersion liquid 167 from buffering container 117 to conveying chamber 122, sept dispersion liquid in the surge chamber 117 as mentioned above under the effect of amount of liquid control gear and meniscus control gear 108 its amount of liquid be maintained constant all the time, so, dispose a certain amount of sept dispersion liquid 167 all the time in drain chamber 121 inside.As a result, the meniscus in the squit hole 132 is maintained certain state all the time, and the discharging of sept dispersion liquid is carried out with being stabilized.

After the release of the sept dispersion liquid of printing position discharging set amount, stop from the discharging of squit hole 132, and finish printing state.

Then, if switch the transfer valve 142,144 of supply side transfer valve 143 and discharge portion 126, so that conveying chamber 122 and drain chamber 121 both be connected with surge chamber 117, then at the sept dispersion liquid after both supply with to conveying chamber 122 and drain chamber 121, return and circulate to impact damper 117 equally, sept dispersion liquid 167 at conveying chamber 122 inner and drain chamber 121 inner mobile in the two.

For example, if substrate after will print carries out between the stage of replacement with new substrate or is carrying out under the holding state that the contraposition etc. of aforesaid substrate stops to print in the time of relatively lacking, make the sept dispersion liquid in conveying chamber 122 and drain chamber 121 internal flows, then in drain chamber 121 or conveying chamber 122, can not cause the sinking of sept particle, can not cause the obstruction of internal ramp 130 or squit hole 132.

In addition, under the situation that stops more than several hours printing, if drain chamber 121 sept dispersion liquids inner and conveying chamber 122 inside are discharged by above-mentioned wiper mechanism 170, even systemic circulation pump 150 or ebullator 115 are stopped, internal ramp 130 or squit hole 132 liquid can not be spaced apart the thing particle yet and stop up.

Have at printing equipment 100 under the situation of a plurality of head module 102a～102d, if use all head module 102a～102d to print simultaneously, then can be at the wider printing position pressroom parting dispersion liquid of large substrate.In addition, under the situation that the head module 102a～102d of one or more in selecting a plurality of head module 102a～102d prints, if the head module 102a～102d that will not print places above-mentioned holding state, then on head module 102a～102d, can not cause the obstruction of sept particle.

More than, the situation that temperature control device only is set in surge chamber 117 is illustrated, but second invention is not limited thereto, for example can on a certain side in first, second external filter 137,138 or both sides, temperature control device be set, temperature based on the sept dispersion liquid of measuring, a certain side in first, second external filter 137,138 or both sides are heated or cool off, and are design temperature thereby can make by the sept dispersion liquid behind first, second external filter 137,138.The temperature control of sept dispersion liquid can be carried out in a certain side of surge chamber 17 and first, second external filter 137,138, also can carry out in both sides.

There is no particular limitation to be used for the kind of sept particle of second invention, for example can use the sept particle that diameter 4 μ m are above, 6 μ m are following.

In second invention, the kind of internal ramp 130 also is not particularly limited, and can use various parts such as nonwoven fabrics, metallic filtrator, and the diameter of the path that the sept particle passes through is preferably more than the twice of diameter of sept particle.

In second invention, also there is no particular limitation for the shape of squit hole 132 and size, but consider stable emission performance, preferably has the above diameter of twice of diameter of the path of internal ramp 130.In addition, the big I of the squit hole 132 of nozzle piece 126 is selected according to the discharging drop size as purpose, but its diameter is preferably more than the 20 μ m, below the 40 μ m.

In addition, in second invention, the ultrasonic irradiation in the surge chamber 117 can only shine when its head module 102 prints, and also can continue irradiation when not printing by head module 102.When carrying out ultrasonic irradiation, can carry out ultrasonic irradiation continuously, also can intermittently carry out ultrasonic irradiation.

More than, near control the discharging of squit hole 132 squit hole 132 in the piezoelectric element mode that piezoelectric element is set situation is illustrated, but the control method of discharging is not limited thereto in second invention, also can adopt spray foam (for registered trademark) mode, heat to penetrate variety of ways such as mode.

The evaluation test of＜the second invention 〉

[sept particulate emissions number]

By above-mentioned Fig. 5, printing equipment 100 shown in Figure 6, carry out the printing of the sept dispersion soln sold on the market, and the sept number in the drop of discharging is estimated.

In addition, the sept dispersion liquid is to make for sept scatters the sept particle of selling on the market of using and making to be scattered in the ethanol class mixed solvent, remove concrement by filtrator in advance, and adjust and the material that obtains, the particle that uses the sept particle is that the concentration of 4.1 μ m, sept particle is adjusted into the material of 0.1wt%.

At nozzle (squit hole 132) diameter is under the situation of 28 μ m, and the discharging drop is of a size of 20pl, and the sept number in drop is 3.2 ± 0.2.

And then, be under the situation of 23 μ m at nozzle diameter, the discharging drop is of a size of 8pl, and the sept number in drop is 2.0 ± 0.9.

As can be known from these results, can easily control the sept number in discharging drop size and the drop by changing nozzle diameter.

[test of discharging estimation of stability]

Use Fig. 5, printing equipment 100 shown in Figure 6, with following three conditions, carry out the continuous blow-down of 60 minutes sept dispersion liquid from squit hole 132, and the number of spacers in the drop is estimated during to continuous blow-down, described three conditions refer to, while make the sept dispersion liquid circulate, make the situation (embodiment 3) of sept dispersion liquid in conveying chamber 122 internal flows in systemic circulation path 150; Only in systemic circulation path 150, carry out the circulation of sept dispersion liquid and not have a mobile situation (comparative example 2) that the sept dispersion liquid is arranged in that conveying chamber 122 is inner; While making the sept dispersion liquid in systemic circulation path 150, circulate, make the sept dispersion liquid in conveying chamber 122 internal flows, and simultaneously to being accumulated in the situation (embodiment 4) that sept dispersion liquid in the surge chamber 117 carries out ultrasonic irradiation.

In addition, under the situation of embodiment 3,4, all be just will stop at drain chamber 121 internal flow sept dispersion liquids before the squit hole 132 discharge interval thing dispersion liquids.

The results are shown in the following table 2.

[table 2]

Table 2: the sept number under the various operating conditions in the drop (second invention)

From above-mentioned table 2 as can be known, do not make in conveying chamber 122 under printing state in the comparative example 2 that the sept dispersion liquid flows, the quantity of observing sept reduced to 1.5 ± 1.0 from 2.0 ± 0.9 of initial stage after 60 minutes.On the other hand, make in conveying chamber 122 among the mobile embodiment 3 of sept dispersion liquid, number of spacers is 1.9 ± 0.9 after 60 minutes, sees the improvement for the minimizing of number of spacers.And then, on one side have the sept dispersion liquid to carry out among the embodiment 4 of ultrasonic irradiation in conveying chamber 122 internal flows,, confirm the effect of discharging stability even after 60 minutes, also do not change on one side.

After continuous blow-down in 60 minutes, when carrying out the evaluation of the number of spacers behind the flushing operation of circulation, head module 102 of ultrasonic irradiation, sept dispersion liquid in the head module 102, even in head module 102, do not have under the round-robin situation, also can pass through attended operation, and return to 2.0 ± 0.9 of initial stage.

Like this, recognize: flow by in conveying chamber 122, making the sept dispersion liquid, more preferably, the sept dispersion liquid in the head module 102 is carried out ultrasonic irradiation, and can improve the discharging stability under the printing state.

Claims (18)

1. head module, have: the nozzle body of inner hollow (20), the nozzle piece (26) of a wall that constitutes aforementioned nozzle body (20) and the induction system (10) that will carry to aforementioned nozzle body (20) from the sept dispersion liquid that stocking system (5) is supplied with

Aforementioned nozzle piece (26) is provided with squit hole (32), is transported to the inner aforementioned sept dispersion liquid of aforementioned nozzle body (20) from aforementioned squit hole (32) discharging, it is characterized in that,

Inside in aforementioned nozzle body (20) disposes the internal ramp (30) that aforementioned sept dispersion liquid can pass through,

The inner space of aforementioned nozzle body (20) by aforementioned internal ramp (30) divide into aforementioned nozzle piece (26) side drain chamber (21) and with the conveying chamber (22) of aforementioned nozzle piece (26) opposition side,

On the wall of aforementioned conveying chamber (22), be provided with the inflow entrance (23) of supplying with aforementioned sept dispersion liquid and the escape hole (24) of discharging aforementioned sept dispersion liquid in the mode of leaving mutually,

Aforementioned induction system (10) has pump (15), and described pump (15) makes the aforementioned sept dispersion liquid of discharging from aforementioned escape hole (24) return to aforementioned inflow entrance (23).

2. head module as claimed in claim 1 is characterized in that, aforementioned induction system (10) has exhaust valve (42),

By switching aforementioned exhaust valve (42), and switch to the discharge state from recurrent state, to be aforementioned sept dispersion liquid return the state of aforementioned inflow entrance (23) from aforementioned escape hole (24) to described recurrent state, and described discharge state is aforementioned sept dispersion liquid is discharged to aforementioned stocking system (5) from aforementioned escape hole (24) a state.

3. head module as claimed in claim 1 is characterized in that, is dispersed with the sept particle in aforementioned sept dispersion liquid,

Inside at aforementioned internal ramp (30) is provided with path, and this path has the above diameter of twice of the diameter of aforementioned sept particle, and aforementioned sept dispersion liquid is passed through,

The diameter of aforementioned squit hole (32) is set greatlyyer than the diameter of aforementioned path.

4. printing equipment has: stocking system (5), accumulate the sept dispersion liquid; One or more head module (2) discharges aforementioned sept dispersion liquid; Feed system (51) is connected aforementioned each head module (2) with aforementioned stocking system (5), and supplies with aforementioned sept dispersion liquid to aforementioned each head module (2); With discharge system (52), aforementioned each head module (2) is connected with aforementioned stocking system (5), and the aforementioned sept dispersion liquid of discharging from aforementioned shower nozzle is returned to aforementioned stocking system (5);

Aforementioned each head module (2) has charge pump (79), and this charge pump (79) allows and stop to switch the supply of aforementioned sept dispersion liquid,

Aforementioned each supply valve (41) is being made as when allowing state, is supplying with aforementioned sept dispersion liquid to aforementioned each head module (2), it is characterized in that from aforementioned feed system (51),

Has the connected system (53) that aforementioned feed system (51) is connected with aforementioned discharge system (52), with aforementioned each supply valve (41) when being made as halted state, aforementioned sept dispersion liquid does not pass through aforementioned each head module (2), and returns to aforementioned discharge system (52) by aforementioned connected system (53).

5. printing equipment as claimed in claim 4, it is characterized in that, aforementioned head module (2) has: the nozzle body of inner hollow (20), the nozzle piece (26) of a wall that constitutes aforementioned nozzle body (20) and the induction system (10) that will carry to aforementioned nozzle body (20) from the sept dispersion liquid that stocking system (5) is supplied with

Aforementioned nozzle piece (26) is provided with squit hole (32), is transported to the inner aforementioned sept dispersion liquid of aforementioned nozzle body (20) from aforementioned squit hole (32) discharging,

Inside in aforementioned nozzle body (20) disposes the internal ramp (30) that aforementioned sept dispersion liquid can pass through,

The inner space of aforementioned nozzle body (20) by aforementioned internal ramp (30) divide into aforementioned nozzle piece (26) side drain chamber (21) and with the conveying chamber (22) of aforementioned nozzle piece (20) opposition side,

On the wall of aforementioned conveying chamber (22), be provided with the inflow entrance (23) of supplying with aforementioned sept dispersion liquid and the escape hole (24) of discharging aforementioned sept dispersion liquid in the mode of leaving mutually,

Aforementioned induction system (10) has makes pump (15) and the exhaust valve (42) that returns to aforementioned inflow entrance (23) from the aforementioned sept dispersion liquid of aforementioned escape hole (24) discharge,

By switching aforementioned exhaust valve (42), the recurrent state of returning aforementioned inflow entrance (23) from aforementioned sept dispersion liquid from aforementioned escape hole (24) switches to aforementioned sept dispersion liquid is discharged to aforementioned stocking system (5) from aforementioned escape hole (24) discharge state

Aforementioned exhaust valve (42) is being made as aforementioned recurrent state and aforementioned charge pump (79) is made as under the state of halted state, circulation that aforementioned sept dispersion liquid returns to aforementioned inflow entrance (23) from aforementioned escape hole (24) and the circulation that does not turn back to aforementioned discharge system (52) by aforementioned head module (2) are carried out simultaneously.

6. printing equipment has: stocking system (5), accumulate the sept dispersion liquid; One or more head module (2 ') discharges aforementioned sept dispersion liquid; Feed system (51) is connected aforementioned each head module (2 ') with aforementioned stocking system (5); With discharge system (52), aforementioned each head module (2 ') is connected with aforementioned stocking system (5), and the aforementioned sept dispersion liquid of discharging from aforementioned head module (2 ') is returned to aforementioned stocking system (5);

Aforementioned head module (2 ') has: the nozzle body of inner hollow (20), constitute a wall of aforementioned nozzle body (20) nozzle piece (26), supply with the feed path (81) of aforementioned sept dispersion liquid, the discharge path (82) that the aforementioned sept solution of discharging from aforementioned nozzle body (20) is returned to aforementioned discharge system (52) from aforementioned feed system (51) to aforementioned nozzle body (20)

The aforementioned sept dispersion liquid that supplies to aforementioned nozzle body (20) discharges from the squit hole (32) that is arranged on the aforementioned nozzle piece (26), it is characterized in that,

Internal configurations in aforementioned nozzle body (20) has internal ramp (30),

The inner space of aforementioned nozzle body (20) by aforementioned internal ramp (30) divide into aforementioned nozzle piece (26) side drain chamber (21) and with the conveying chamber (22) of aforementioned nozzle piece (26) opposition side,

On the wall of aforementioned conveying chamber (22), be provided with from the inflow entrance (23) of the aforementioned sept dispersion liquid of aforementioned feed path (81) supply and the escape hole (24) that aforementioned sept dispersion liquid is returned to aforementioned discharge path (82) in the mode of leaving mutually,

Aforementioned feed path (81) is connected with aforementioned escape hole (24) with aforementioned inflow entrance (23) respectively with aforementioned discharge path (82),

Aforementioned sept dispersion liquid to aforementioned feed path (81) feed is passing through aforementioned conveying chamber (22) before aforementioned discharge path (82) feed.

7. printing equipment as claimed in claim 6 is characterized in that, the aforementioned feed path (81) of aforementioned each head module (2 ') is connected with aforementioned feed system (51) successively along the flow direction of aforementioned sept dispersion liquid,

If the supply valve (41) of the upstream side feed path (81) that will be connected with aforementioned feed system (51) at upstream side cuts out, and will open at the supply valve (41) of the downstream feed path (81) that is connected with aforementioned feed system (51) than the close downstream of aforementioned upstream side feed path (81), then aforementioned sept dispersion liquid is the aforementioned conveying chamber (22) by being connected with aforementioned upstream side feed path (81) not, and the aforementioned conveying chamber (22) by being connected with aforementioned downstream feed path (81).

8. printing process, make to supply to and be divided into the sept dispersion liquid of aforementioned conveying chamber (122) of nozzle body (120) of conveying chamber (122) and drain chamber (121) by aforementioned internal ramp (130) by internal ramp, supply to aforementioned drain chamber (121), and discharge aforementioned sept dispersion liquid towards the printing object thing from the squit hole (132) that is arranged at aforementioned drain chamber (121), it is characterized in that

Aforementioned printing object thing is being discharged under the printing state of aforementioned sept dispersion liquid, and at least a portion that supplies to the aforementioned sept dispersion liquid of aforementioned conveying chamber (122) is discharged from aforementioned conveying chamber (122),

Aforementioned printing object thing is not being discharged under the holding state of aforementioned sept dispersion liquid, aforementioned sept dispersion liquid is supplied to aforementioned drain chamber (121), and the aforementioned sept dispersion liquid that will supply to aforementioned drain chamber (121) is discharged from aforementioned drain chamber (121).

9. printing process as claimed in claim 8 is characterized in that, under aforementioned holding state, also supplies with aforementioned sept dispersion liquid to aforementioned conveying chamber (122), and the dispersion liquid that will supply to the aforementioned sept of aforementioned conveying chamber (122) is discharged.

10. printing process as claimed in claim 8 is characterized in that, the aforementioned sept dispersion liquid of discharging from aforementioned conveying chamber (122) is returned to a certain side or the both sides of aforementioned drain chamber (121) and aforementioned conveying chamber (122).

11. printing process as claimed in claim 8 is characterized in that, makes the aforementioned sept dispersion liquid of discharging from aforementioned drain chamber (121), returns to a certain side or the both sides of aforementioned drain chamber (121) and aforementioned conveying chamber (122).

12. printing process as claimed in claim 9, it is characterized in that, under aforementioned holding state, make from the aforementioned sept dispersion liquid of aforementioned drain chamber (121) discharge with from the aforementioned sept dispersion liquid mixing back that aforementioned conveying chamber (122) is discharged and return to the both sides of aforementioned drain chamber (121) and aforementioned conveying chamber (122).

13. head module, have: the nozzle body of inner hollow (120), constitute a wall of aforementioned nozzle body (120) nozzle piece (131), be arranged on one or more squit hole (132) on the aforementioned nozzle piece (131), to the supply unit (125) of aforementioned nozzle body (120) internal feed sept dispersion liquid with from the inner discharge portion (126) of discharging aforementioned sept dispersion liquid of aforementioned nozzle body (120)

The aforementioned sept dispersion liquid of supplying with from aforementioned supply unit (125) discharges from aforementioned squit hole (132), it is characterized in that,

The internal ramp (130) that the inner space of aforementioned nozzle body (120) can be passed through by aforementioned sept dispersion liquid divide into aforementioned nozzle piece (131) side drain chamber (121) and with the conveying chamber (122) of the opposite side of aforementioned nozzle piece (131),

Aforementioned supply unit (125) has: be arranged on the waste side inflow entrance (124) on the aforementioned drain chamber (121) and be arranged on supply side inflow entrance (123) on the aforementioned conveying chamber (122), aforementioned sept dispersion liquid is supplied with to aforementioned drain chamber (121) from aforementioned waste side inflow entrance (124), supply with to aforementioned conveying chamber (122) from aforementioned supply side inflow entrance (123)

Aforementioned discharge portion (126) has: be arranged on the waste side escape hole (128) on the aforementioned drain chamber (121) and be arranged on supply side escape hole (127) on the aforementioned conveying chamber (122), aforementioned sept dispersion liquid is discharged from aforementioned drain chamber (121) and aforementioned conveying chamber (122) respectively by aforementioned waste side escape hole (128) and aforementioned supply side escape hole (127).

14. head module as claimed in claim 13 is characterized in that, has the circulation system (110), the aforementioned circulation system (110) makes the aforementioned sept dispersion liquid of discharging to aforementioned discharge portion (126) return to aforementioned supply unit (125).

15. head module as claimed in claim 14, it is characterized in that, the aforementioned circulation system (110) will be mixed from the aforementioned sept dispersion liquid of aforementioned waste side escape hole (128) discharge with from the aforementioned sept dispersion liquid that aforementioned supply side escape hole (127) is discharged, and they are returned to aforementioned supply unit (125).

16. head module as claimed in claim 14 is characterized in that, the aforementioned circulation system (110) has the surge chamber (117) of accumulating the sept dispersion liquid,

The aforementioned sept dispersion liquid that is accumulated in the aforementioned surge chamber (117) is supplied with to aforementioned supply unit (125),

The aforementioned sept dispersion liquid of discharging from aforementioned discharge portion (126) returns to aforementioned surge chamber (117).

17. a printing equipment has: accumulate the sept dispersion liquid stocking system (105), supply with one or more head module (102) of aforementioned sept dispersion liquid from aforementioned stocking system (105),

Aforementioned each head module (102) has: the nozzle body of inner hollow (120), constitute a wall of aforementioned nozzle body (120) nozzle piece (131), be arranged on one or more squit hole (132) on the aforementioned nozzle piece (131), to the supply unit (125) of aforementioned nozzle body (120) internal feed sept dispersion liquid with from the inner discharge portion (126) of discharging aforementioned sept dispersion liquid of aforementioned nozzle body (120)

The aforementioned sept dispersion liquid of supplying with from aforementioned supply unit (125) discharges from aforementioned squit hole (132), it is characterized in that,

The internal ramp (130) that the inner space of aforementioned nozzle body (120) can be passed through by aforementioned sept dispersion liquid divide into aforementioned nozzle piece (131) side drain chamber (121) and with the conveying chamber (122) of the opposite side of aforementioned nozzle piece (131),

Aforementioned supply unit (125) has: be arranged on the waste side inflow entrance (124) on the aforementioned drain chamber (121) and be arranged on supply side inflow entrance (123) on the aforementioned conveying chamber, aforementioned sept dispersion liquid is supplied with to aforementioned drain chamber (121) from aforementioned waste side inflow entrance (124), supply with to aforementioned conveying chamber (122) from aforementioned supply side inflow entrance (123)

Aforementioned discharge portion (126) has: be arranged on the waste side escape hole (128) on the aforementioned drain chamber (121) and be arranged on supply side escape hole (127) on the aforementioned conveying chamber (122), aforementioned sept dispersion liquid is discharged from aforementioned drain chamber (121) and aforementioned conveying chamber (122) respectively by aforementioned waste side escape hole (128) and aforementioned supply side escape hole (127).

18. printing equipment as claimed in claim 17 is characterized in that, has the circulation system (110), the described circulation system (110) makes the aforementioned sept dispersion liquid of discharging to aforementioned discharge portion (126) return to aforementioned supply unit (125),

Aforementioned sept dispersion liquid supplies to the aforementioned circulation system (110) from aforementioned stocking system (105).

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