CN107499014B - A method of the dry pattern of regulation inkjet printing adjacent drops - Google Patents
A method of the dry pattern of regulation inkjet printing adjacent drops Download PDFInfo
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- CN107499014B CN107499014B CN201710640887.4A CN201710640887A CN107499014B CN 107499014 B CN107499014 B CN 107499014B CN 201710640887 A CN201710640887 A CN 201710640887A CN 107499014 B CN107499014 B CN 107499014B
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- frame
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- 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
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- Ink Jet Recording Methods And Recording Media Thereof (AREA)
- Ink Jet (AREA)
Abstract
The present invention relates to a kind of methods of dry pattern of regulation inkjet printing adjacent drops, step 1, using ink printed adjacent ink ejection printed droplets, while printing adjacent ink ejection printed droplets, frame-type figure is printed using ink solvent in adjacent ink ejection printed droplets periphery, frame-type figure includes outline border and inside casing, adjacent drops are located within inside casing, the outline border of frame-type figure to the width between inside casing be d, the inside casing area of frame-type figure is s, step 2, thermal sintering, by the way of thermal sintering, removal is using the solvent portion in the frame-type figure and adjacent ink ejection printed droplets of ink solvent printing, the method for leaving a kind of dry pattern of regulation inkjet printing adjacent drops of adjacent ink ejection printed droplets pattern, (1) improve single droplet drying microenvironment, keep pattern after droplet drying uniform；(2) influencing each other during droplet drying can largely be weakened；(3) of less demanding to substrate surface wetability, do not need substrate surface pre-patterning.
Description
Technical field
The present invention relates to printed electronic device preparation fields, dry more particularly to a kind of regulation inkjet printing adjacent drops
The method of pattern.
Background technique
With the raising of electronic device integrated level, the distance between the components such as electrode constantly reduce, and inkjet printing drop
In drying process, dry environment is influenced by other drops, and the influence increases as distance reduces,
Existing inkjet printing film morphology control technology makes to do mostly based on the inhibition to single drop " coffee ring " effect
Variation 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
Greater than its liquid volume loss amount, therefore solvent forms export-oriented capillary flow, makes solute at edge from central area to edge supplement
Aggregation is formed " coffee ring ".Its control methods is a variety of, including by changing ink composition, ground state and increasing special set
It is standby, inhibit in each process of formation and eliminates " coffee ring ".(a) regulation 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, and substrate cools down (17 DEG C), pre-patterning and electrowetting；(c) the evaporation shield for having micropore is such as added in ancillary equipment
And immerse the capillary needle point of drop；(d) it is even micro- in millisecond such as to control curing time by photon sintering technology for rapid curing
Second rank.
For adjacent electrode inkjet printing, after the prior art has the disadvantage in that (1) is solely focused on single droplet drying
The inhibition of " coffee ring " effect, does not account for influencing each other between adjacent drops；(2) if drop is inserted pre-patterning
Groove afterwards then makes inkjet printing technology lose original technical advantage (simple process, directly graphical).
Summary of the invention
For the technical problems in the prior art, the object of the present invention is to provide a kind of regulation inkjet printing is adjacent
The method of droplet drying pattern can weaken influencing each other in adjacent drops drying process, after keeping adjacent drops dry all
With uniform surface topography.
In order to achieve the above object, the present invention adopts the following technical scheme:
A method of the dry pattern of regulation inkjet printing adjacent drops, it is characterised in that:
Step 1: using ink printed adjacent ink ejection printed droplets, while printing adjacent ink ejection printed droplets, in phase
Adjacent inkjet printing drop periphery prints frame-type figure using ink solvent, and frame-type figure includes outline border and inside casing, adjacent drops position
Within inside casing, the outline border 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, frame-type figure and adjacent spray of the removal using ink solvent printing
Solvent portion in black printed droplets leaves adjacent ink ejection printed droplets pattern.
Wherein, the inside casing of frame-type figure is the pattern of frame type.
Wherein, the outline border of frame-type figure is the pattern of frame type.
Wherein, the outline border 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 present invention has the advantage that
A method of the dry pattern of regulation inkjet printing adjacent drops, (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 of less demanding, does not need substrate surface pre-patterning；(4) ink is used for adjusting the additional graphics of adjacent drops pattern
Aqueous solvent printing, can be removed by thermal sintering mode, without damaging to the realization of drop function itself.
Detailed description of the invention
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 ring effect
Figure.
Fig. 2 is the adjacent ink ejection printed droplets pattern electromicroscopic photograph without Morphological control.
Fig. 3 is a kind of one schematic diagram of method and step of the dry pattern of regulation inkjet printing adjacent drops of the invention.
Fig. 4 is a kind of two schematic diagram of method and step of the dry pattern of regulation inkjet printing adjacent drops of the invention.
Fig. 5 is the adjacent ink ejection printed droplets pattern electromicroscopic photograph by Morphological control.
Fig. 6 is the application schematic illustration.
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 outline border.
Specific embodiment
It is next below that the present invention will be further described in detail.
Embodiment 1,
As shown in figure 3, figure 4 and figure 5, a method of the dry pattern of regulation inkjet printing adjacent drops, Step 1: using
Ink printed adjacent ink ejection printed droplets 1, while printing adjacent ink ejection printed droplets 1, outside adjacent ink ejection printed droplets 1
It enclosing and frame-type figure 2 is printed using ink solvent, frame-type figure 2 includes outline border 4 and inside casing 3, and adjacent drops are located within inside casing 3,
The outline border 4 of frame-type figure 2 is d to the width between inside casing 3, and 3 area of inside casing of frame-type figure 2 is s；Step 2: thermal sintering, is adopted
With the mode of thermal sintering, removal is using the solvent portion in the frame-type figure 2 and adjacent ink ejection printed droplets 1 of ink solvent printing
Point, leave 1 pattern of adjacent ink ejection printed droplets.The inside casing 3 of frame-type figure 2 is the pattern of frame type.The outline border 4 of frame-type figure 2
For the pattern of frame type.It is 200 μm that the outline border 4 of frame-type figure 2, which is d to the width between inside casing 3,.3 face of inside casing of frame-type figure 2
Product s is 90000 μm2。
Generally speaking, the present invention has the advantage that
A method of the dry pattern of regulation inkjet printing adjacent drops, (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 of less demanding, does not need substrate surface pre-patterning；(4) ink is used for adjusting the additional graphics of adjacent drops pattern
Aqueous solvent printing, can be removed by thermal sintering mode, without damaging to the realization of drop function itself.
Basic principle of the invention are as follows:
Assuming that diffusion coefficient is constant, and infinite point vapor concentration is 0, by calculating, concentration distribution around single drop
Are as follows: c=rc0/ ρ, wherein r is liquid-drop diameter, and ρ is the c with a distance from drop centered0For the vapor concentration at ρ=r.
It is spread according to the steam of single drop, the vapor concentration distribution among two drops can be calculated, it may be assumed that
C=cρ+cd-ρ=(drc0)/(ρ(d-ρ))；
As shown in fig. 6, present position original steam is dense if placing a droplet in the middle position of two drops
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, the partial differential of d, w:
It is found that r increases, d reduces, and w increases, and will lead to Δ c increase, i.e. droplet marginal position concentration and center is steamed
Gas concentration difference increases, therefore its edge evaporation rate is significantly weakened relative to center position, to reach inhibition
The purpose of " coffee ring " effect.
Embodiment 2,
The present embodiment key step is same as Example 1, and details are not described herein for something in common, the difference is that:
As shown in figure 5, keeping the line width of frame-type figure 2 is 200 μm, S is 40000 μm2, two are found compared with Example 1
It influences each other and is 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, the evaporation of the solvent of frame-type figure 2 itself is more, and there are two effects: (1) improving
Single droplet drying microenvironment, keeps pattern after droplet drying uniform；(2) reduce the evaporation of adjacent drops solvent to cause droplet drying
Influence.
Embodiment 3,
The present embodiment key step is identical as embodiment 1 or 2, and details are not described herein for something in common, the difference is that:
As shown in figure 5, keeping the line width of frame-type figure 2 is 200 μm, S is 22500 μm2, two are found compared with Example 2
It influences each other and is 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 keeps the evaporation of the solvent of frame-type figure 2 itself more, there are two effects: (1) improving
Single droplet drying microenvironment, keeps pattern after droplet drying uniform；(2) reduce the evaporation of adjacent drops solvent to cause droplet drying
Influence.
The above embodiment is a preferred embodiment of the present invention, but embodiments of the present invention are not by above-described embodiment
Limitation, other any changes, modifications, substitutions, combinations, simplifications made without departing from the spirit and principles of the present invention,
It should be equivalent substitute mode, be included within the scope of the present invention.
Claims (5)
1. a kind of method of the dry pattern of regulation inkjet printing adjacent drops, it is characterised in that:
Step 1: using ink printed adjacent ink ejection printed droplets, while printing adjacent ink ejection printed droplets, in adjacent spray
Black printed droplets periphery prints frame-type figure using ink solvent, and frame-type figure includes outline border and inside casing, and adjacent drops are located at interior
Within frame, the outline border 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, removal is beaten using the frame-type figure and adjacent ink ejection of ink solvent printing
The solvent portion in drop is printed, adjacent ink ejection printed droplets pattern is left.
2. a kind of method of dry pattern of regulation inkjet printing adjacent drops described in accordance with the claim 1, it is characterised in that: frame
The inside casing of type figure is the pattern of frame type.
3. a kind of method of the dry pattern of regulation inkjet printing adjacent drops according to claim 2, it is characterised in that: frame
The outline border of type figure is the pattern of frame type.
4. a kind of method of dry pattern of regulation inkjet printing adjacent drops described in accordance with the claim 1, it is characterised in that: frame
The outline border of type figure is that d is more than or equal to 200 μm to the width between inside casing.
5. a kind of method of dry pattern of regulation inkjet printing adjacent drops described in accordance with the 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 CN107499014A (en) | 2017-12-22 |
| CN107499014B true CN107499014B (en) | 2019-06-18 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| TWI221427B (en) * | 2003-10-07 | 2004-10-01 | Ind Tech Res Inst | Micro-dispensing film forming apparatus with vibration-induced method |
| KR20070066647A (en) * | 2005-12-22 | 2007-06-27 | 삼성전자주식회사 | Appartus and method for ink-jetting |
| CN103762314B (en) * | 2013-12-31 | 2016-05-25 | 合肥工业大学 | For the insulating barrier method of modifying of inkjet printing OTFT |
| CN104260554B (en) * | 2014-09-24 | 2016-03-30 | 京东方科技集团股份有限公司 | The preparation method of inkjet printing methods and equipment, display base plate |
| 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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