CN113829759A - Color ink-jet printing method based on polystyrene microsphere array structure - Google Patents
Color ink-jet printing method based on polystyrene microsphere array structure Download PDFInfo
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- CN113829759A CN113829759A CN202111001867.5A CN202111001867A CN113829759A CN 113829759 A CN113829759 A CN 113829759A CN 202111001867 A CN202111001867 A CN 202111001867A CN 113829759 A CN113829759 A CN 113829759A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/21—Ink jet for multi-colour printing
- B41J2/2107—Ink jet for multi-colour printing characterised by the ink properties
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Abstract
The invention discloses a color ink-jet printing method based on a polystyrene microsphere array structure, which comprises the following steps: preparing suspensions with various concentrations and containing the small balls with different particle sizes by using white PS small ball powder with different particle sizes; dividing different areas on a substrate to be printed, and spraying different suspensions to each area according to color requirements; after the suspension is evaporated, forming a film array consisting of small balls with different particle sizes in each area; and spraying gold nano powder with different thicknesses in each area according to color requirements, wherein the gold powder with different thicknesses in the film array and the small ball gap forms different colors, so that color printing is realized. The method is based on a structural color film formed by PS pellets, and gold nano powder with different thicknesses is sprayed in uniformly divided pellet arrays to form pellet gaps; the color is changed by utilizing the ordered array formed by the polystyrene microspheres and the local surface plasmon resonance characteristic of the gold nanoparticles, namely the spectral absorption effect on an ultraviolet visible light region.
Description
Technical Field
The invention relates to a color ink-jet printing method based on a polystyrene microsphere array structure, belonging to the technical field.
Background
Polystyrene microspheres, namely PS beads, are a common polymer microsphere material, and a preparation method of polystyrene microspheres with narrow particle size distribution is reported for the first time in 1955 by Vanderhoff and Brodford, and then the preparation and research of polymer microspheres become a new field of polymer science research. The polystyrene microsphere has the general characteristics of a polymer microsphere material, such as small particle size, large specific surface area, strong adsorbability, good dispersibility, easy modification and the like. The method is widely applied to the fields of biochemistry, electrochemical detection, catalysts, adsorbents, chromatographic fillers, coatings and the like. The reason why the noble metal nanoparticles have bright colors is that the nanoparticles have strong scattering and absorption effects on light in the ultraviolet and visible light region, and have strong absorption bands in the ultraviolet and visible light region, which is the localized surface plasmon resonance effect.
The ink-jet printer forms images and texts by spraying ink into fine particles through a nozzle onto printing paper. Conventional ink jet printers typically employ thermal inkjet technology, which utilizes a thin film resistor to heat less than 0.5% of the ink in the ink ejection area to form a vapor bubble. The thermal ink-jet technology is constructed by such an integrated cyclic technical program, but because the ink is easy to change chemically at high temperature, the directionality and the volume of ink particles are not well known, the edges of printing lines are easy to be uneven, and the printing quality is influenced to a certain extent, which is a disadvantage.
Disclosure of Invention
The invention aims to provide a color ink-jet printing method based on a polystyrene microsphere array structure, which aims to overcome the defects of complicated color printing and insufficient printing precision of the traditional ink-jet printer in the prior art.
A color inkjet printing method based on a polystyrene microsphere array structure, the method comprising:
preparing suspensions with various concentrations and containing the small balls with different particle sizes by using white PS small ball powder with different particle sizes;
dividing different areas on a substrate to be printed, and spraying different suspensions to each area according to color requirements;
after the suspension is evaporated, forming a film array consisting of small balls with different particle sizes in each area;
and spraying gold nano powder with different thicknesses in each area according to color requirements, wherein the gold powder with different thicknesses in the film array and the small ball gap forms different colors, so that color printing is realized.
Further, the method adopts two nozzles, one is used for spraying the suspension liquid of the small balls with different particle sizes to different divided areas on the substrate, and the other is used for spraying the gold nanoparticle powder with different thicknesses.
Further, the particle size of the gold nanoparticles is 15 nm-25 nm.
Furthermore, the thickness of the spraying bottom of the gold nano powder is 0 nm-600 nm.
Further, the particle size of the PS beads is 220 nm-690 nm.
Further, the preparation method of the suspension of the small balls with different particle sizes comprises the following steps: dissolving the white PS bead powder with different particle sizes in absolute ethyl alcohol to prepare suspension of the beads with different particle sizes.
Compared with the prior art, the invention has the following beneficial effects:
the method is based on a structural color film formed by PS pellets, and gold nano powder with different thicknesses is sprayed in uniformly divided pellet arrays to form pellet gaps; the color is changed by utilizing the ordered array formed by the PS beads and the local surface plasmon resonance characteristic of the gold nanoparticles, namely the spectral absorption effect on an ultraviolet visible light region.
Drawings
FIG. 1 is a top view of the present invention uniformly differentiating the print locations into different regions;
FIG. 2 is a cross-sectional view of the present invention sprayed on a substrate using three nozzles containing solutions of PS beads of different particle sizes;
FIG. 3 is a cross-sectional view of a monolayer array of PS beads of different particle sizes according to the present invention;
FIG. 4 is a cross-sectional view of a single-layer array composed of PS beads of the same particle size and coated with gold nanoparticles of different thicknesses in various regions according to the present invention;
FIG. 5 is a cross-sectional view of a single-layer array formed by PS beads with different particle sizes and sprayed with gold nanoparticles of the same thickness in each region according to the present invention;
FIG. 6 is a cross-sectional view of a single-layer array formed by PS beads with different particle sizes and sprayed with gold nanoparticles with different thicknesses in each region according to the present invention;
FIG. 7 is a schematic view of a suspension formed by spraying PS beads with different particle sizes on gold powder.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
As shown in fig. 1-6, a color inkjet printing method based on a polystyrene microsphere array structure, the method comprising:
dissolving white PS (polystyrene) microsphere powder with different particle sizes in absolute ethyl alcohol to prepare a plurality of suspensions with certain concentration and containing the microspheres with different particle sizes, dividing different areas on a substrate to be printed, and spraying different suspensions to each area through a nozzle according to color requirements; after the solution is spread and evaporated, a layer of film array consisting of small balls with different particle sizes can be obtained on the surface of the substrate;
at the moment, gold nanoparticle powder with different thicknesses is sprayed on the surface of the regularly divided small ball array through another nozzle to be in the gap between the adjacent small balls;
PS pellets with different grain diameters and gold nano powder with different thicknesses are sprayed on each area, so that the color of each area is changed, and color printing is realized;
for the method, the specific preparation steps of the invention are as follows:
a) the printing positions are uniformly divided into several regions. The positions to be printed are evenly divided into 2500 squares as shown in fig. 1.
b) Dissolving polystyrene microspheres with different particle sizes in absolute ethyl alcohol to form polystyrene ethanol suspension with a certain concentration, and placing the prepared polystyrene ethanol suspension with different particle sizes in different ink boxes, wherein PS microsphere suspensions with the particle sizes of 220nm, 450nm and 690nm are respectively prepared as shown in FIG. 2.
c) And uniformly spraying a thin layer to the surfaces of different areas from a nozzle according to the color requirement of a required pattern. After the solvent is evaporated at room temperature, a film composed of an array of PS beads with different particle sizes can be prepared on the surface of the substrate, as shown in fig. 3.
d) According to the color requirement of the required pattern, another nozzle sprays prepared 15 nm-25 nm gold nanoparticle powder in the uniformly divided area to the gap between the adjacent small balls, and in the embodiment, 20nm gold nanoparticle powder is adopted;
e) adjusting the spraying thickness of the gold nanoparticles in different blocks according to the spraying time, so as to adjust the spectral absorption effect of a visible light area to realize color change, wherein in the step, the spraying thickness of the gold nanoparticles is 0-600 nm; as shown in fig. 4, 5, and 6.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (6)
1. The color ink-jet printing method based on the polystyrene microsphere array structure is characterized by comprising the following steps of:
preparing suspensions with various concentrations and containing the small balls with different particle sizes by using white PS small ball powder with different particle sizes;
dividing different areas on a substrate to be printed, and spraying different suspensions to each area according to color requirements;
after the suspension is evaporated, forming a film array consisting of small balls with different particle sizes in each area;
and spraying gold nano powder with different thicknesses in each area according to color requirements, wherein the gold powder with different thicknesses in the film array and the small ball gap forms different colors, so that color printing is realized.
2. The method for color inkjet printing based on polystyrene microsphere array structure according to claim 1, wherein two nozzles are used, one is used for spraying the suspension of the microspheres with different particle sizes to different divided areas on the substrate, and the other is used for spraying the gold nanoparticle powder with different thicknesses.
3. The color inkjet printing method based on polystyrene microsphere array structure according to claim 1, wherein the particle size of the gold nanoparticles is 15 nm-25 nm.
4. The color inkjet printing method based on polystyrene microsphere array structure according to claim 1, wherein the thickness of the gold nanopowder is 0 nm-600 nm.
5. The method for color inkjet printing based on polystyrene microsphere array structure according to claim 1, wherein the particle size of the PS beads is 220nm to 690 nm.
6. The method for color inkjet printing based on polystyrene microsphere array structure according to claim 1, wherein the method for preparing the suspension of the microspheres with different particle sizes comprises: dissolving the white PS bead powder with different particle sizes in absolute ethyl alcohol to prepare suspension of the beads with different particle sizes.
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| Application Number | Priority Date | Filing Date | Title |
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| CN113829759B CN113829759B (en) | 2023-02-28 |
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| CN110449329A (en) * | 2019-08-08 | 2019-11-15 | 吉林大学 | A kind of preparation method of the non-iris schemochrome film of super-hydrophobicity |
| CN110983424A (en) * | 2019-11-19 | 2020-04-10 | 上海交通大学 | Method for preparing large-area crack-free thick film photonic crystal on porous substrate |
| CN112048213A (en) * | 2019-06-05 | 2020-12-08 | 上海大学 | Ink-jet 3D printing material, ink and preparation method thereof |
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2021
- 2021-08-30 CN CN202111001867.5A patent/CN113829759B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105206175A (en) * | 2015-10-23 | 2015-12-30 | 浙江大学 | Anti-counterfeit label based on patterned metal nanocomposite and production method of anti-counterfeit label |
| CN106042377A (en) * | 2016-06-03 | 2016-10-26 | 陕西科技大学 | Colorating method for dynamic structure of colorful coating of 3D-printed product |
| CN106626376A (en) * | 2016-11-07 | 2017-05-10 | 广东工业大学 | Color inkjet three-dimensional printing method |
| CN110023087A (en) * | 2016-11-17 | 2019-07-16 | 3M创新有限公司 | Composition comprising polymer and ceramic microspheres and the method for preparing three-dimensional article |
| CN106905552A (en) * | 2017-02-23 | 2017-06-30 | 苏州贝彩纳米科技有限公司 | A kind of method of utilization microballoon to 3D printing product coloring |
| CN107688015A (en) * | 2017-07-13 | 2018-02-13 | 北京工业大学 | A kind of preparation method for being used to strengthen the transparent dielectric microballoon fexible film of Raman diffused light spectral intensity |
| CN109031476A (en) * | 2018-08-30 | 2018-12-18 | 浙江理工大学 | Have both the preparation method of stable structure and brightly painted patterning photon crystal structure chromogenic materials |
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| CN110449329A (en) * | 2019-08-08 | 2019-11-15 | 吉林大学 | A kind of preparation method of the non-iris schemochrome film of super-hydrophobicity |
| CN110983424A (en) * | 2019-11-19 | 2020-04-10 | 上海交通大学 | Method for preparing large-area crack-free thick film photonic crystal on porous substrate |
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