CN107499014A - A kind of method that regulation and control inkjet printing adjacent drops dry pattern - Google Patents
A kind of method that regulation and control inkjet printing adjacent drops dry pattern Download PDFInfo
- Publication number
- CN107499014A CN107499014A CN201710640887.4A CN201710640887A CN107499014A CN 107499014 A CN107499014 A CN 107499014A CN 201710640887 A CN201710640887 A CN 201710640887A CN 107499014 A CN107499014 A CN 107499014A
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- China
- Prior art keywords
- frame
- type
- adjacent
- pattern
- inside casing
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/0041—Digital printing on surfaces other than ordinary paper
- B41M5/0047—Digital printing on surfaces other than ordinary paper by ink-jet printing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M7/00—After-treatment of prints, e.g. heating, irradiating, setting of the ink, protection of the printed stock
- B41M7/0009—Obliterating the printed matter; Non-destructive removal of the ink pattern, e.g. for repetitive use of the support
Abstract
The present invention relates to a kind of method that regulation and control inkjet printing adjacent drops dry pattern, Step 1: using ink printed adjacent ink ejection printed droplets, while adjacent ink ejection printed droplets are printed, in adjacent ink ejection printed droplets periphery using ink solvent printing frame-type figure, frame-type figure includes housing and inside casing, adjacent drops are located within inside casing, and the housing of frame-type figure is d to the width between inside casing, and the inside casing area of frame-type figure is s；Step 2: thermal sintering, by the way of thermal sintering, remove the solvent content in the frame-type figure and adjacent ink ejection printed droplets using ink solvent printing, leave the method that a kind of regulation and control inkjet printing adjacent drops of adjacent ink ejection printed droplets pattern dry pattern, (1) single droplet drying microenvironment is improved, pattern is uniform after making droplet drying；(2) influencing each other during droplet drying can largely be weakened；(3) it is less demanding to substrate surface wetability, it is not necessary to substrate surface pre-patterning.
Description
Technical field
The present invention relates to printed electronic device preparation field, is dried more particularly to one kind regulation and control inkjet printing adjacent drops
The method of pattern.
Background technology
As the distance between components such as the raising of electronic device integrated level, electrode constantly reduce, and inkjet printing drop
In drying process, its dry environment is influenceed by other drops, and the influence increases as distance reduces,
Existing inkjet printing film morphology control technology, more suppression based on to single drop " coffee ring " effect, makes to do
Change as shown in Figure 1 occurs for the drop pattern after dry.Under the premise of drop three-phase tufted, drop edge solvent evaporation amount is remote
More than its liquid volume loss amount, therefore solvent forms export-oriented capillary flow from central area to edge supplement, makes solute at edge
Aggregation, formed " coffee ring ".Its control methods is a variety of, including by changing ink composition, ground state and increasing special set
It is standby, suppress in each process of formation and eliminate " coffee ring ".(a) regulate and control ink chemistry and composition, such as increase surface-active
Agent, lauryl mercaptan, higher boiling low surface tension solvent, high-molecular gel, or even change solute shape；(b) base treatment, such as table
Face is hydrophobic, substrate cooling (17 DEG C), pre-patterning and electrowetting；(c) auxiliary equipment, the evaporation shield with micropore is such as added
And immerse the capillary needle point of drop；(d) rapid curing, it is such as even micro- in millisecond by photon sintering technology control solidification time
Second rank.
For adjacent electrode inkjet printing, prior art has the following disadvantages：(1) after being solely focused on single droplet drying
The suppression of " coffee ring " effect, influencing each other between adjacent drops is not accounted for；(2) if drop is inserted into pre-patterning
Groove afterwards, then inkjet technology is lost original technical advantage (technique is simple, directly graphical).
The content of the invention
For technical problem present in prior art, the purpose of the present invention is：It is adjacent to provide a kind of regulation and control inkjet printing
The method of droplet drying pattern, it can weaken influencing each other in adjacent drops drying process, make adjacent drops dry after all
With uniform surface topography.
In order to achieve the above object, the present invention adopts the following technical scheme that：
A kind of method that regulation and control inkjet printing adjacent drops dry pattern, it is characterised in that：
Step 1: using ink printed adjacent ink ejection printed droplets, while adjacent ink ejection printed droplets are printed, in phase
Adjacent inkjet printing drop periphery includes housing and inside casing, adjacent drops position using ink solvent printing frame-type figure, frame-type figure
Within inside casing, the housing of frame-type figure is d to the width between inside casing, and the inside casing area of frame-type figure is s；
Step 2: thermal sintering, by the way of thermal sintering, removes the frame-type figure using ink solvent printing and adjacent spray
Solvent content in black printed droplets, leave adjacent ink ejection printed droplets pattern.
Wherein, the inside casing of frame-type figure is the pattern of frame type.
Wherein, the housing of frame-type figure is the pattern of frame type.
Wherein, the housing of frame-type figure is that d is more than or equal to 200 μm to the width between inside casing.
Wherein, the inside casing area of frame-type figure is that s is less than or equal to 90000 μm2。
Generally speaking, the invention has the advantages that：
A kind of method that regulation and control inkjet printing adjacent drops dry pattern, (1) improves single droplet drying microenvironment, makes liquid
Pattern is uniform after drip-dry is dry；(2) influencing each other during droplet drying can largely be weakened；(3) to substrate surface
Wetability is less demanding, it is not necessary to substrate surface pre-patterning；(4) additional graphics for being used to adjust adjacent drops pattern use ink
Aqueous solvent prints, and can be removed by thermal sintering mode, is damaged without being realized to drop function itself.
Brief description of the drawings
Fig. 1 is Cross Section Morphology schematic diagram and the signal of goal of regulation and control Cross Section Morphology after single droplet drying in coffee toroidal effect
Figure.
Fig. 2 is the adjacent ink ejection printed droplets pattern electromicroscopic photograph without Morphological control.
Fig. 3 is that a kind of regulation and control inkjet printing adjacent drops of the present invention dry the schematic diagram of method and step one of pattern.
Fig. 4 is that a kind of regulation and control inkjet printing adjacent drops of the present invention dry the schematic diagram of method and step two of pattern.
Fig. 5 is the adjacent ink ejection printed droplets pattern electromicroscopic photograph by Morphological control.
Fig. 6 is the application principle schematic.
Wherein include in Fig. 3, Fig. 4：
1 is adjacent ink ejection printed droplets；2 be frame-type figure；3 be inside casing；4 be housing.
Embodiment
It is next below that the present invention will be further described in detail.
Embodiment 1,
As shown in Fig. 3, Fig. 4, Fig. 5, a kind of method of regulation and control inkjet printing adjacent drops drying pattern, Step 1: using
Ink printed adjacent ink ejection printed droplets 1, while adjacent ink ejection printed droplets 1 are printed, outside adjacent ink ejection printed droplets 1
Enclosing using ink solvent printing frame-type figure 2, frame-type figure 2 includes housing 4 and inside casing 3, and adjacent drops are located within inside casing 3,
The width that the housing 4 of frame-type figure 2 is arrived between inside casing 3 is d, and the area of inside casing 3 of frame-type figure 2 is s；Step 2: thermal sintering, is adopted
With the mode of thermal sintering, the solvent portion in the frame-type figure 2 and adjacent ink ejection printed droplets 1 using ink solvent printing is removed
Point, leave the pattern of adjacent ink ejection printed droplets 1.The inside casing 3 of frame-type figure 2 is the pattern of frame type.The housing 4 of frame-type figure 2
For the pattern of frame type.The housing 4 of frame-type figure 2 is that d is 200 μm to the width between inside casing 3.The inside casing 3 of frame-type figure 2
Area s is 90000 μm2。
Generally speaking, the invention has the advantages that：
A kind of method that regulation and control inkjet printing adjacent drops dry pattern, (1) improves single droplet drying microenvironment, makes liquid
Pattern is uniform after drip-dry is dry；(2) influencing each other during droplet drying can largely be weakened；(3) to substrate surface
Wetability is less demanding, it is not necessary to substrate surface pre-patterning；(4) additional graphics for being used to adjust adjacent drops pattern use ink
Aqueous solvent prints, and can be removed by thermal sintering mode, is damaged without being realized to drop function itself.
The present invention general principle be：
Assuming that diffusion coefficient is constant, and infinite point vapor concentration is 0, by calculating, concentration distribution around single drop
For：C=rc0/ ρ, wherein r are liquid-drop diameter, ρ be from drop centered with a distance from, c0For the vapor concentration at ρ=r.
Spread according to the steam of single drop, the vapor concentration distribution among two drops can be calculated, i.e.,：
C=cρ+cd-ρ=(drc0)/(ρ(d-ρ))；
If as shown in fig. 6, placing a droplet in the centre position of two drops, its present position original steam is dense
Degree：
Droplet center cm=(4rc0)/d, when ρ=d/2；
Droplet marginal position ce=(4drc0)/(d2-w2)；
The difference DELTA c=c of its vapor concentratione-cm=(4drc0)/(d2-w2)-(4rc0)/d=(4rc0w2)/(d(d2-
w2))；
Δ c is calculated relative to r, d, w partial differential：
Understand, r increases, d reduces, and w increases, Δ c can be caused to increase, i.e., droplet marginal position concentration is steamed with center
Gas concentration difference increases, therefore its edge evaporation rate is significantly weakened relative to center position, suppresses so as to reach
The purpose of " coffee ring " effect.
Embodiment 2,
The present embodiment key step is same as Example 1, and something in common will not be repeated here, and difference is：
As shown in figure 5, the line width for keeping frame-type figure 2 is 200 μm, S is 40000 μm2, two are found compared with Example 1
Influence each other and be significantly attenuated existing for droplet drying pattern, and two drop patterns are uniform, without " coffee ring ".What the effect occurred
Reason is that, when the additional upper frame-type figure 2 of drop makes, solvent evaporation of frame-type figure 2 itself is more, two effects be present：(1) change
It is apt to single droplet drying microenvironment, pattern is uniform after making droplet drying；(2) reduce the evaporation of adjacent drops solvent to make droplet drying
Into influence.
Embodiment 3,
The present embodiment key step is identical with embodiment 1 or 2, and something in common will not be repeated here, and difference is：
As shown in figure 5, the line width for keeping frame-type figure 2 is 200 μm, S is 22500 μm2, two are found compared with Example 2
Influence each other and be significantly attenuated existing for droplet drying pattern, and two drop patterns are uniform, without " coffee ring ".What the effect occurred
Reason is, when the additional upper frame-type figure 2 of drop makes solvent evaporation of frame-type figure 2 itself more, two effects be present：(1) improve
Single droplet drying microenvironment, pattern is uniform after making droplet drying；(2) reduce the evaporation of adjacent drops solvent to cause droplet drying
Influence.
Above-described embodiment is the preferable embodiment of the present invention, but embodiments of the present invention are not by above-described embodiment
Limitation, other any Spirit Essences without departing from the present invention with made under principle change, modification, replacement, combine, simplification,
Equivalent substitute mode is should be, is included within protection scope of the present invention.
Claims (5)
1. a kind of method that regulation and control inkjet printing adjacent drops dry pattern, it is characterised in that：
Step 1: using ink printed adjacent ink ejection printed droplets, while adjacent ink ejection printed droplets are printed, in adjacent spray
Black printed droplets periphery includes housing and inside casing using ink solvent printing frame-type figure, frame-type figure, and adjacent drops are positioned at interior
Within frame, the housing of frame-type figure is d to the width between inside casing, and the inside casing area of frame-type figure is s；
Step 2: thermal sintering, by the way of thermal sintering, is removed and is beaten using the frame-type figure and adjacent ink ejection of ink solvent printing
The solvent content in drop is printed, leaves adjacent ink ejection printed droplets pattern.
2. the method for pattern is dried according to a kind of regulation and control inkjet printing adjacent drops described in claim 1, it is characterised in that：Frame
The inside casing of type figure is the pattern of frame type.
3. the method for pattern is dried according to a kind of regulation and control inkjet printing adjacent drops described in claim 2, it is characterised in that：Frame
The housing of type figure is the pattern of frame type.
4. the method for pattern is dried according to a kind of regulation and control inkjet printing adjacent drops described in claim 1, it is characterised in that：Frame
The housing of type figure is that d is more than or equal to 200 μm to the width between inside casing.
5. the method for pattern is dried according to a kind of regulation and control inkjet printing adjacent drops described in claim 1, it is characterised in that：Frame
The inside casing area of type figure is that s is less than or equal to 90000 μm2。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710640887.4A CN107499014B (en) | 2017-07-31 | 2017-07-31 | A method of the dry pattern of regulation inkjet printing adjacent drops |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710640887.4A CN107499014B (en) | 2017-07-31 | 2017-07-31 | A method of the dry pattern of regulation inkjet printing adjacent drops |
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| Publication Number | Publication Date |
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| CN107499014A true CN107499014A (en) | 2017-12-22 |
| CN107499014B CN107499014B (en) | 2019-06-18 |
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| CN201710640887.4A Active CN107499014B (en) | 2017-07-31 | 2017-07-31 | A method of the dry pattern of regulation inkjet printing adjacent drops |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050074546A1 (en) * | 2003-10-07 | 2005-04-07 | Kevin Cheng | Micro-dispensing thin film-forming apparatus and method thereof |
| KR20070066647A (en) * | 2005-12-22 | 2007-06-27 | 삼성전자주식회사 | Appartus and method for ink-jetting |
| CN103762314A (en) * | 2013-12-31 | 2014-04-30 | 合肥工业大学 | Insulating layer decorating method for printing organic thin-film transistor in ink jet mode |
| CN104260554A (en) * | 2014-09-24 | 2015-01-07 | 京东方科技集团股份有限公司 | Ink-jet printing method and device and manufacturing method of display substrate |
| CN105467682A (en) * | 2016-01-15 | 2016-04-06 | 京东方科技集团股份有限公司 | Film structure, producing method of film structure, display substrate, backlight source and display device |
-
2017
- 2017-07-31 CN CN201710640887.4A patent/CN107499014B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050074546A1 (en) * | 2003-10-07 | 2005-04-07 | Kevin Cheng | Micro-dispensing thin film-forming apparatus and method thereof |
| KR20070066647A (en) * | 2005-12-22 | 2007-06-27 | 삼성전자주식회사 | Appartus and method for ink-jetting |
| CN103762314A (en) * | 2013-12-31 | 2014-04-30 | 合肥工业大学 | Insulating layer decorating method for printing organic thin-film transistor in ink jet mode |
| CN104260554A (en) * | 2014-09-24 | 2015-01-07 | 京东方科技集团股份有限公司 | Ink-jet printing method and device and manufacturing method of display substrate |
| CN105467682A (en) * | 2016-01-15 | 2016-04-06 | 京东方科技集团股份有限公司 | Film structure, producing method of film structure, display substrate, backlight source and display device |
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| Publication number | Publication date |
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| CN107499014B (en) | 2019-06-18 |
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