CN113752716B - Preparation of patterned super-hydrophilic-hydrophobic water transfer printing film and water transfer printing method thereof - Google Patents
Preparation of patterned super-hydrophilic-hydrophobic water transfer printing film and water transfer printing method thereof Download PDFInfo
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- CN113752716B CN113752716B CN202110924565.9A CN202110924565A CN113752716B CN 113752716 B CN113752716 B CN 113752716B CN 202110924565 A CN202110924565 A CN 202110924565A CN 113752716 B CN113752716 B CN 113752716B
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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
- B41M5/025—Duplicating or marking methods; Sheet materials for use therein by transferring ink from the master sheet
Abstract
The invention provides a preparation method of a patterned super-hydrophilic-hydrophobic water transfer printing film and a water transfer printing method thereof, wherein a quartz mother template with a columnar microstructure is prepared; preparing a super-hydrophobic water transfer printing film: and preparing the patterned super-hydrophilic-hydrophobic water transfer printing film. The invention uses nano-imprinting and plasma processing technology to prepare the patterned super-hydrophilic and hydrophobic water transfer printing film, solves the problem that the prior water transfer printing technology needs to prepare a gravure or a screen plate, does not need to use ink-jet printing technology and other technologies to color the water transfer printing film, solves the problem that image-text ink diffuses in water or is stretched and deformed to cause distortion, and can obtain high-quality and high-resolution transfer printing images and texts.
Description
Technical Field
The invention relates to the technical field of water transfer printing or water transfer printing films, in particular to a preparation method of a patterned super-hydrophilic and super-hydrophobic water transfer printing film and a water transfer printing method thereof.
Background
The water transfer printing technique is a technique of performing transfer printing by coating a pattern on the surface of an object using the pressure of water and interfacial adhesion, and is classified into water coating transfer printing and water mark transfer printing according to the implementation characteristics. The water-coating transfer printing refers to a technology of attaching a water-soluble flexible film to the surface of an object and transferring a pattern on the film to the surface of the object. The water-coated transfer film is a film with color patterns printed on the surface of a water-soluble plastic film by utilizing gravure printing or ink-jet printing and special ink, is mainly used for integral transfer printing on the surface of an object, but is stretched and deformed during the transfer printing process. The water mark transfer printing is a process for completely transferring the pictures and texts on the water mark transfer printing paper to the surface of a printing stock, and the water mark transfer printing paper is used for manufacturing transfer printing pictures and texts on a base material in a screen printing or offset printing mode and is suitable for transfer printing of the pictures and texts on a plane.
At present, the preparation of the water transfer printing film generally adopts the modes of ink-jet printing, offset printing, electroplating and the like to prepare a pattern layer on a water-soluble substrate. The preparation of the water transfer printing film in the prior art is to plate a metal pattern layer on a PET film; the prior art water transfer printing film is prepared by preparing a pattern layer on a water-soluble substrate by using a jet printing technology. The existing method for preparing the water transfer printing film is to prepare patterns on a water-soluble substrate and then transfer the patterns to an object, but in the transfer printing process, the water-soluble film is dissolved under the action of an activating agent, and the patterns formed by special ink can be diffused in water, so that the distortion of the patterns is caused or the resolution of the transfer printing patterns is reduced. In addition, when a pattern is transferred onto a three-dimensional surface, the pattern may be subjected to tensile deformation when contacting the surface of an object, which may also cause distortion of the pattern or decrease the resolution of the transferred pattern.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a preparation method of a patterned super-hydrophilic and super-hydrophobic water transfer printing film and a water transfer printing method thereof, and the resolution of a transfer printing pattern is improved.
The present invention achieves the above-described object by the following technical means.
The preparation method of the patterned super-hydrophilic-hydrophobic water transfer printing film comprises the following steps:
preparing a quartz mother template with a columnar microstructure;
preparing a super-hydrophobic water transfer printing film:
preparing a mixed solution A from the PDMS prepolymer and a curing agent, filling the mixed solution A on the quartz master template, fully and uniformly filling the mixed solution A by using a scraper, and heating and curing to prepare a PDMS transfer template;
preparing a mixed solution B from the PDMS prepolymer and a curing agent, wherein the volume ratio of the PDMS prepolymer in the mixed solution B is higher than that of the PDMS prepolymer in the mixed solution A; spin-coating the mixed solution A on a glass substrate, and heating and curing to form a PDMS stripping layer; spin-coating a water-soluble material on the PDMS stripping layer and heating and curing; spin-coating the mixed solution B on the water-soluble material layer, and heating and curing to form a PDMS adsorption layer; spin-coating impression glue on the PDMS adsorption layer to prepare a water transfer printing substrate;
placing the PDMS transfer printing template on a printing glue layer of the water transfer printing substrate, removing bubbles in the printing glue, then placing the PDMS transfer printing template into a nano printing press, pressurizing and irradiating by ultraviolet light; curing the imprinting glue; removing the PDMS transfer printing template and the glass base plate to obtain a water transfer printing film with a super-hydrophobic columnar microstructure;
preparing a patterned super-hydrophilic-hydrophobic water transfer printing film:
preparing a pattern mask plate;
and (3) closely contacting a pattern mask plate with the surface of the imprinting glue with the microstructure on the water transfer printing film with the super-hydrophobic columnar microstructure, removing bubbles on a contact surface, and increasing the surface energy of the imprinting glue through ozone plasma treatment to prepare the patterned super-hydrophilic-hydrophobic water transfer printing film.
Further, the preparation of the quartz mother template with the columnar microstructure comprises the following steps:
cleaning and pretreating a quartz substrate;
spin-coating a photoresist on a quartz substrate, and heating and curing the photoresist;
preparing a photoetching mask plate with millimeter-scale thickness; covering the photo-etching mask plate on the solidified photo-etching glue, and exposing through an ultraviolet exposure machine; removing the unexposed glue layer by using a developing solution;
and (3) placing the quartz substrate into an ion beam etching machine for gas etching, and removing the exposed adhesive layer through photoresist cleaning solution to obtain the quartz master template with the columnar microstructure.
Further, the water-soluble material layer is a polyvinyl alcohol coating; the thickness of the mixed solution B is 10-20 μm by spin coating on the polyvinyl alcohol coating.
Further, the thickness of the stamping glue is 20-30 μm.
Further, the cleaning pretreatment of the quartz substrate specifically comprises the following steps: washing the quartz substrate by deionized water and acetone, and drying; the quartz substrate is etched by ions.
Furthermore, the thickness of the pattern mask plate is 1-2 mm.
The water transfer printing method of the patterned super-hydrophilic and hydrophobic water transfer printing film comprises the following steps:
the bottom of the container of the water transfer printing device is connected with an injector, and the height of the water surface of the container is controlled by the injector;
placing an article at the bottom of a water transfer printing device, placing the patterned super-hydrophilic and hydrophobic water transfer printing film on the water surface, and transferring the patterned super-hydrophilic and hydrophobic water transfer printing film to the surface of the object by controlling the height of the water surface.
Further, the water temperature in the container is normal temperature; and placing the patterned super-hydrophilic-hydrophobic water transfer printing film on the water surface for 15-30 min.
The invention has the beneficial effects that:
1. the preparation of the patterned super-hydrophilic-hydrophobic water transfer printing film utilizes the nano-imprinting and plasma treatment technology to prepare the patterned super-hydrophilic-hydrophobic water transfer printing film, solves the problem that the prior water transfer printing technology needs to prepare a gravure or a reticle, does not need to utilize ink-jet printing technology and other technologies to color the water transfer printing film, solves the problem that image-text ink diffuses or is stretched and deformed in water to cause distortion, and can obtain high-quality and high-resolution transfer images and texts.
2. According to the preparation method of the patterned super-hydrophilic and hydrophobic water transfer printing film, two PDMS mixed solutions A and B with different volume ratios are utilized, and a PDMS transfer printing template prepared from the PDMS mixed solution A and a PDMS stripping layer have lower surface energy and can be easily separated from other objects, so that the transfer printing precision of a columnar microstructure is ensured; meanwhile, the PDMS stripping layer can prevent the water-soluble layer of the water transfer printing film from contacting with moisture in the air, and storage of the water transfer printing film is facilitated. The PDMS adsorption layer prepared by the PDMS mixed liquid B has higher surface energy, is beneficial to the adsorption of the water transfer printing film and an object, and is not easy to separate.
3. The water transfer printing method of the patterned super-hydrophilic-hydrophobic water transfer printing film is different from the traditional water transfer printing film in that the pattern layer of the film is a transparent colorless patterned super-hydrophilic-hydrophobic column-shaped microstructure instead of ink pictures and texts, and the flexible substrate is colored after being transferred to an object, so that the problem that the flexible substrate is easy to deform and the pictures and texts are difficult to prepare is solved, and meanwhile, different pigments can be used for coloring without special ink and the like.
Drawings
FIG. 1 is a flow chart of a quartz master template preparation process according to the present invention.
FIG. 2 is a flow chart of a process for preparing a patterned super-hydrophilic-hydrophobic water transfer printing film according to the present invention.
Fig. 3 is a flow chart of a water transfer printing process of the patterned super-hydrophilic-hydrophobic water transfer printing film according to the present invention.
FIG. 4 is a schematic diagram of a columnar microstructure of the water transfer printing film according to the present invention.
In the figure:
101-ultraviolet photoresist; 102-a quartz substrate; 103-photoetching mask plates; 104-quartz mother template; 201-PDMS transfer printing template; 202-imprinting a glue layer; 203-PDMS adsorption layer; 204-water soluble coating; 205-PDMS release layer; 206-glass substrate; 207-pattern template; 208-a hydrophobic microstructured surface; 209-hydrophilic microstructured surface; 301-water transfer device; 302-item.
Detailed Description
The invention will be further described with reference to the following figures and specific examples, but the scope of the invention is not limited thereto.
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "axial," "radial," "vertical," "horizontal," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present invention and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Example 1
The preparation method of the patterned super-hydrophilic-hydrophobic water transfer printing film comprises the following steps:
the preparation method of the quartz master template with the columnar microstructure comprises the following specific steps as shown in figure 1:
(1) Pretreatment: after the quartz substrate 102 was cleaned with deionized water and acetone and determined to be free of any impurities, it was put into a drying oven at 130 ℃ for 0.5h to sufficiently volatilize the residual deionized water and acetone solution. The quartz substrate 102 is then placed in a reactive ion etcher and the ozone plasma is used to bombard the substrate surface, increasing its surface energy.
(2) And spin-coating the negative ultraviolet photoresist 101 on the quartz substrate 102 at 1500rpm for 60s, controlling the thickness of the photoresist layer to be 600-800 nm, placing the photoresist layer on a hot table, baking the photoresist layer for 0.5h at 90 ℃, and curing the photoresist 101 to enable the photoresist 101 to be tightly attached to the quartz substrate 102.
(3) And modeling the photoetching mask plate 103 by using 3D software, and then introducing a 3D printer to print the photoetching mask plate 103 with the thickness of about 1 mm. The mask 103 is brought into close contact with a quartz substrate 102 coated with a negative uv photoresist 101 and then exposed to a uv exposure machine for 30 seconds, and the unexposed glue layer is removed with a negative developing solution such as n-heptane.
(4) The quartz substrate 102 after development processing is put into an ion beam etcher using CHF 3 Gas channelAnd etching a columnar microstructure shown in fig. 4 on the quartz by a reactive ion etching method, and finally removing the exposed adhesive layer by using a cleaning solution to obtain the quartz mother template 104.
The preparation of the superhydrophobic water transfer film, as shown in fig. 2, includes the following steps:
the method comprises the following steps of fully mixing PDMS prepolymer and a curing agent according to a volume ratio of 10.
The glass substrate 206 was ultrasonically cleaned with acetone, ethanol, and deionized water, respectively, for 15min, and then blow-dried with nitrogen gas, and used as a substrate. The mixed solution A was spin-coated on the glass substrate 206 at 500rpm,10s, and then spread uniformly, and then at 1500rpm,40s, the mixed solution A was coated into a PDMS film of about 20 μm, which was then heated and cured on a hot stage at 80 ℃ for 1.5h to obtain a PDMS peeling layer 205. Mixing a polyvinyl alcohol raw material with a certain amount of water, spin-coating the mixture on the PDMS peeling layer 205 at a speed of 1000rpm for 60s, coating a polyvinyl alcohol film with a thickness of about 15 μm on the polyvinyl alcohol solution, drying the polyvinyl alcohol film in a drying oven at 80 ℃ for 2h, and curing to obtain the water-soluble coating 204 which can be rapidly dissolved in water at normal temperature.
The PDMS prepolymer and the curing agent are fully mixed according to the volume ratio of 20 to 1 to prepare a mixed solution B, the mixed solution B is placed in a vacuum box to remove air bubbles after standing for 1h, the mixed solution B is spin-coated on the water-soluble coating 204, the mixed solution B is uniformly spread after the rotation speed is 5000 rpm and 10s, then the mixed solution B is coated into a PDMS film with the thickness of about 20 mu m after the rotation speed is increased to 1500rpm and 40s, and then the PDMS film is placed on a hot table with the temperature of 80 ℃ to be heated and cured for 1.5h to obtain the PDMS adsorption layer 203. The imprinting paste was applied to the PDMS adsorption layer 203 at 500rpm for 10s, and then spread uniformly, and then applied to a thin film of about 20 μm at 1000rpm for 50s, thereby preparing a water transfer substrate.
The PDMS transfer printing template 201 is lightly placed on the glass substrate 206 coated with the imprinting glue, bubbles are removed, then the substrate is placed into a nano-imprinting device, nitrogen is filled in a cavity, the pressure is 0.2Mpa, and the pressure is maintained for 5min. The UV light source was turned on at an intensity of 10mw/cm 2 And then irradiated at room temperature for 5min, and taken out after the imprinting glue is cured. The PDMS transfer template 201 is separated from the solidified imprinting adhesive, the solidified imprinting adhesive has lower surface energy, the columnar microstructure increases the roughness of the surface of the imprinting adhesive layer, and the Wenzel model shows that the surface of the imprinting adhesive layer is super-hydrophobic, so that the imprinting adhesive layer 202 with the super-hydrophobic columnar microstructure is prepared. And (3) removing the PDMS transfer template and the glass substrate, and separating the glass substrate 206 from other coatings to obtain the water transfer printing film with the super-hydrophobic columnar microstructure.
The preparation method of the patterned super-hydrophilic-hydrophobic water transfer printing film comprises the following specific steps:
preparing a pattern mask 207: and drawing a plane graph-text to be transferred to the article by using 3D modeling software, then guiding the plane graph-text into a 3D printer, and printing a pattern template 207 with the thickness of about 1 mm.
The pattern template 207 is lightly placed on the imprinting adhesive layer 202 of the prepared water transfer printing film with the super-hydrophobic columnar microstructure, bubbles are lightly removed to be tightly attached, and then the film is placed in an ozone plasma instrument with the processing power of 150W and the processing time of 2min. After the ozone plasma treatment, the pattern template 207 is peeled off, the region exposed to the ozone plasma is a superhydrophilic region 209, and the region covered by the pattern template 207 is a superhydrophobic region 208, as shown in fig. 4, and finally, the patterned superhydrophobic water transfer film is obtained.
Fig. 3 is a process flow diagram of a water transfer printing method of the patterned superhydrophilic-hydrophobic water transfer printing film according to the present invention, and the transfer printing process will be described in detail below.
And (3) putting the article 302 finally bearing the pictures and texts into a water transfer printing device 301, wherein the bottom of the water transfer printing device 301 is connected with an injector, so that the height of the water surface in the device can be controlled to enable the water surface to descend or ascend at a constant speed, and the water temperature of the transfer printing device is about 25 ℃.
Separating the PDMS stripping layer 205 from the water-soluble coating 204, then placing the patterned super-hydrophilic and hydrophobic water transfer printing film on the water surface of the water transfer printing device 301 opposite to the article 302, standing for 15-30 min, and slowly descending the water surface at a constant speed after the water-soluble coating is completely dissolved until the PDMS adsorption layer 203 is adsorbed on the article 302, so that the article 302 has the required super-hydrophilic and hydrophobic pattern on the surface.
Example 2
Example 2 only the preparation of the PDMS adsorption layer 203, the imprinting adhesive layer 202, and the pattern template 207 were changed based on example 1. The modified preparation method comprises the following steps:
the PDMS prepolymer and the curing agent are fully mixed according to the volume ratio of 20 to 1 to prepare a mixed solution B, the mixed solution B is placed in a vacuum box to remove air bubbles after standing for 1h, the mixed solution B is spin-coated on the water-soluble coating 204, the mixed solution B is uniformly spread after the rotation speed is 500rpm and 5s, then the mixed solution is coated into a PDMS film with the thickness of about 10 mu m after the rotation speed is increased to 1500rpm and 20s, and then the PDMS film is placed on a hot table with the temperature of 80 ℃ to be heated and cured for 1.5h to obtain the PDMS adsorption layer 203.
The imprinting paste was applied to the PDMS adsorption layer 203, first, at 500rpm for 10s, then spread evenly, and then, at 1000rpm for 80s, the imprinting paste was applied to a thin film of about 30 μm.
The PDMS transfer printing template 201 is lightly placed on the glass substrate 206 coated with the imprinting glue, bubbles are removed, then the substrate is placed into a nano-imprinting device, nitrogen is filled in a cavity, the pressure is 0.2Mpa, and the pressure is maintained for 7min. The UV light source was turned on at an intensity of 10mw/cm 2 And then irradiated at room temperature for 7min, and taken out after the imprinting glue is solidified, so as to prepare the imprinting glue layer 202 with the thickness of 30 microns.
And drawing a plane graph and text to be transferred to an article by using 3D modeling software, then guiding the plane graph and text into a 3D printer, and printing a pattern template 207 with the thickness of about 2mm.
Example 3
Example 3 only the preparation of the PDMS adsorption layer 203, the imprinting adhesive layer 202, and the pattern template 207 were changed from those of example 1. The modified preparation method comprises the following steps:
the PDMS prepolymer and the curing agent are fully mixed according to the volume ratio of 20 to 1 to prepare a mixed solution B, the mixed solution B is placed in a vacuum box to remove air bubbles after standing for 1h, the mixed solution B is spin-coated on the water-soluble coating 204, the mixed solution B is uniformly spread after the rotation speed is 500rpm and 7s, then the mixed solution is coated into a PDMS film with the thickness of about 15 mu m after the rotation speed is increased to 1500rpm and 30s, and then the PDMS film is placed on a hot table with the temperature of 80 ℃ to be heated and cured for 1.5h to obtain the PDMS adsorption layer 203.
The imprinting paste was applied to the PDMS adsorption layer 203 by spreading the imprinting paste uniformly at 500rpm for 10s, and then applying the imprinting paste to a thin film of about 25 μm after increasing the rotation speed to 1000rpm for 65s.
The PDMS transfer printing template 201 is lightly placed on the glass substrate 206 coated with the imprinting glue, bubbles are removed, then the substrate is placed into a nano-imprinting device, nitrogen is filled in a cavity, the pressure is 0.2Mpa, and the pressure is maintained for 6min. The UV light source was turned on at an intensity of 10mw/cm 2 And then irradiating for 6min at room temperature, and taking out the imprinting glue after the imprinting glue is solidified to prepare the imprinting glue layer 202 with the thickness of 25 micrometers.
And drawing a plane graph-text to be transferred to the article by using 3D modeling software, then guiding the plane graph-text into a 3D printer, and printing a pattern template 207 with the thickness of about 1.5 mm.
It should be understood that although the present description has been described in terms of various embodiments, not every embodiment includes only a single embodiment, and such description is for clarity purposes only, and those skilled in the art will recognize that the embodiments described herein may be combined as suitable to form other embodiments, as will be appreciated by those skilled in the art.
The above-listed detailed description is only a specific description of a possible embodiment of the present invention, and they are not intended to limit the scope of the present invention, and equivalent embodiments or modifications made without departing from the technical spirit of the present invention should be included in the scope of the present invention.
Claims (8)
1. The preparation method of the patterned super-hydrophilic-hydrophobic water transfer printing film is characterized by comprising the following steps of:
preparing a quartz mother template with a columnar microstructure;
preparing a super-hydrophobic water transfer printing film:
preparing a mixed solution A from the PDMS prepolymer and a curing agent, filling the mixed solution A on the quartz master template, fully and uniformly filling the mixed solution A by using a scraper, and heating and curing to prepare a PDMS transfer template;
preparing a mixed solution B from the PDMS prepolymer and a curing agent, wherein the volume ratio of the PDMS prepolymer in the mixed solution B is higher than that of the PDMS prepolymer in the mixed solution A; spin-coating the mixed solution A on a glass substrate, and heating and curing to form a PDMS stripping layer; spin-coating a water-soluble material on the PDMS stripping layer and heating and curing; spin-coating the mixed solution B on the water-soluble material layer, and heating and curing to form a PDMS adsorption layer; spin-coating impression glue on the PDMS adsorption layer to prepare a water transfer printing substrate;
placing the PDMS transfer printing template on a printing glue layer of the water transfer printing substrate, removing bubbles in the printing glue, then placing the PDMS transfer printing template into a nano printing press, and pressurizing and irradiating by ultraviolet light; curing the imprinting glue; removing the PDMS transfer printing template and the glass base plate to obtain a water transfer printing film with a super-hydrophobic columnar microstructure;
preparing a patterned super-hydrophilic-hydrophobic water transfer printing film:
preparing a pattern mask plate;
and (3) closely contacting a pattern mask plate with the surface of the imprinting glue with the microstructure on the water transfer printing film with the super-hydrophobic columnar microstructure, removing bubbles on a contact surface, and increasing the surface energy of the imprinting glue through ozone plasma treatment to prepare the patterned super-hydrophilic-hydrophobic water transfer printing film.
2. The preparation method of the patterned superhydrophilic and hydrophobic water transfer film according to claim 1, wherein the preparation of the quartz master template with the columnar microstructure comprises the following steps:
cleaning and pretreating a quartz substrate;
spin-coating a photoresist on a quartz substrate, and heating and curing the photoresist;
preparing a photoetching mask plate with millimeter-scale thickness; covering the photo-etching mask plate on the solidified photo-etching glue, and exposing through an ultraviolet exposure machine; removing the unexposed adhesive layer by using a developing solution;
and (3) placing the quartz substrate into an ion beam etching machine for gas etching, and removing the exposed adhesive layer through photoresist cleaning solution to obtain the quartz master template with the columnar microstructure.
3. The preparation of the patterned superhydrophilic-hydrophobic water transfer film according to claim 1, wherein the water-soluble material layer is a polyvinyl alcohol coating; the thickness of the mixed solution B which is spin-coated on the polyvinyl alcohol coating is 10 to 20 mu m.
4. The preparation of the patterned superhydrophilic-hydrophobic water transfer film according to claim 1, wherein the thickness of the imprinting glue is 20-30 μm.
5. The preparation method of the patterned superhydrophilic and hydrophobic water transfer printing film according to claim 2, wherein the cleaning pretreatment on the quartz substrate specifically comprises the following steps: washing the quartz substrate by deionized water and acetone, and drying; the quartz substrate is etched by ions.
6. The method for preparing the patterned superhydrophilic-and-hydrophobic water transfer film according to claim 1, wherein the thickness of the pattern mask plate is 1-2 mm.
7. A water transfer printing method of the patterned superhydrophilic-hydrophobic water transfer printing film according to any one of claims 1-6, comprising the steps of:
the bottom of the container of the water transfer printing device is connected with an injector, and the height of the water surface of the container is controlled by the injector;
placing an article at the bottom of a water transfer printing device, placing the patterned super-hydrophilic and super-hydrophobic water transfer printing film on the water surface, and transferring the patterned super-hydrophilic and super-hydrophobic water transfer printing film to the surface of an object by controlling the height of the water surface.
8. The water transfer printing method of the patterned superhydrophilic-hydrophobic water transfer printing film according to claim 7, wherein a temperature of water in the container is a normal temperature; and placing the patterned super-hydrophilic-hydrophobic water transfer printing film on the water surface for 15-30 min.
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| CN114953797A (en) * | 2022-06-22 | 2022-08-30 | 合肥工业大学 | Anti-distortion transfer printing method and transfer printing device for micro-nano structure |
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