CN113752716A - 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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- CN113752716A CN113752716A CN202110924565.9A CN202110924565A CN113752716A CN 113752716 A CN113752716 A CN 113752716A CN 202110924565 A CN202110924565 A CN 202110924565A CN 113752716 A CN113752716 A CN 113752716A
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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
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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-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 use 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.
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, and is mainly used for overall transfer printing on the surface of an object, but a carrier can be stretched and deformed in 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 the 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 film is prepared by preparing a pattern layer on a water-soluble substrate by using a spray-thinning 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 transferred patterns is reduced. In addition, when a pattern is transferred onto a three-dimensional surface, the pattern may be distorted by stretching when it comes into contact with the surface of an object, or the resolution of the transferred pattern may be reduced.
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, and pressurizing and irradiating by ultraviolet light; curing the imprinting glue; removing the PDMS transfer printing template and the glass bottom 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 a photoetching mask plate on the solidified photoresist, 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 which is spin-coated on the polyvinyl alcohol coating is 10-20 mu m.
Furthermore, 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-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 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.
Further, the temperature of water 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 technologies to prepare the patterned super-hydrophilic-hydrophobic water transfer printing film, so that the problem that a gravure or a reticle needs to be prepared in the prior water transfer printing technology is solved, the water transfer printing film does not need to be colored by utilizing ink-jet printing and other technologies, the problem that image-text printing ink is diffused or stretched and deformed in water to cause distortion is solved, and high-quality and high-resolution transfer images and texts can be obtained.
2. According to the preparation method of the patterned super-hydrophilic-hydrophobic water transfer printing film, two PDMS mixed liquor A and mixed liquor B with different volume ratios are utilized, and a PDMS transfer printing template and a PDMS stripping layer prepared from the PDMS mixed liquor A have lower surface energy and can be easily separated from other objects, so that the transfer printing precision of a columnar microstructure is ensured; and meanwhile, the PDMS stripping layer can prevent the water-soluble layer of the water transfer printing film from contacting with moisture in the air, so that the 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 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, without limiting the scope of the invention.
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 an orientation or positional relationship indicated in the drawings for convenience in describing the invention and for simplicity in description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered as limiting. Furthermore, the terms "first", "second" 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, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. 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 meaning of the above terms in the present invention can be understood by those of ordinary skill 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 bombarded with ozone plasma on the substrate surface to increase its surface energy.
(2) And spin-coating the negative ultraviolet photoresist 101 on the quartz substrate 102 at the speed of 1500rpm for 60s, controlling the thickness of the photoresist layer to be 600-800 nm, then placing the photoresist layer on a hot table, baking the photoresist layer for 0.5h at the temperature of 90 ℃, and curing the photoresist 101 to enable the photoresist layer 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 CHF3And etching a columnar microstructure on the quartz by using gas through a reactive ion etching method, and finally removing the exposed adhesive layer by using cleaning liquid 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 10:1 to obtain a mixed solution A, standing the mixed solution A for 1h, completely removing bubbles in the mixed solution A by using a vacuum method, slowly pouring the mixed solution A onto a quartz master template 104, removing bubbles generated in the pouring process by using a dropper, fully filling the quartz master template 104 with the mixed solution A by using a scraper and controlling the thickness of a PDMS transfer template 201, placing the PDMS transfer template 201 on a hot table at 80 ℃ for heating and curing for 1.5h, wherein the surface energy of the cured PDMS is very low, and the PDMS transfer template 201 can be easily removed from the quartz master template 104.
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 is spin-coated on the glass substrate 206 at a rotation speed of 500rpm for 10s, the mixed solution is spread uniformly, the rotation speed is increased to 1500rpm for 40s, the mixed solution a is coated into a PDMS film with a thickness of about 20 μm, and then the PDMS film is heated and cured on a hot table at 80 ℃ for 1.5h to obtain the PDMS stripping layer 205. Mixing a polyvinyl alcohol raw material with a certain amount of water, spin-coating the mixture on the PDMS stripping layer 205 at the speed of 1000rpm for 60s, coating a polyvinyl alcohol film with the thickness of about 15 μm on the polyvinyl alcohol solution, drying the polyvinyl alcohol film in a drying oven at the temperature of 80 ℃ for 2h, and curing to obtain the water-soluble coating 204 which can be quickly dissolved in water at normal temperature.
And fully mixing the PDMS prepolymer and a curing agent according to a volume ratio of 20:1 to obtain a mixed solution B, standing for 1h, placing the mixed solution B in a vacuum box to remove air bubbles, spin-coating the mixed solution B on a water-soluble coating 204 at a rotation speed of 500rpm for 10s, uniformly spreading the mixed solution B, increasing the rotation speed to 1500rpm for 40s, coating the mixed solution B into a PDMS film with the thickness of about 20 microns, and then placing the PDMS film on a hot table with the temperature of 80 ℃ to heat and cure for 1.5h to obtain a PDMS adsorption layer 203. And coating the imprinting glue on the PDMS adsorption layer 203, wherein the rotation speed is 500rpm firstly, spreading the imprinting glue uniformly after 10s, then increasing the rotation speed to 1000rpm, and coating the imprinting glue into a film with the thickness of about 20 mu m after 50s, thereby preparing the water transfer printing 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 5 min. The UV light source was turned on at an intensity of 10mw/cm2And 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, the surface of the imprinting adhesive layer is known to be super-hydrophobic by a Wenzel model, and the imprinting adhesive layer 202 with the super-hydrophobic columnar microstructure is prepared. Removing the PDMS transfer template and the glass substrate, and separating the glass substrate 206 from other coatings to obtain the super-hydrophobic columnar structureMicrostructured water transfer films.
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 image-text to be transferred to the article by using 3D modeling software, then guiding the plane image-text into a 3D printer, and printing out 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 2 min. After the ozone plasma treatment, the pattern template 207 is peeled off, the region exposed to the ozone plasma is a super-hydrophilic region 209, and the region covered by the pattern template 207 is a super-hydrophobic region 208, as shown in fig. 4, and finally the patterned super-hydrophilic-hydrophobic 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 specifically described 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 object 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 object 302, so that the surface of the object 302 has the required super-hydrophilic and hydrophobic pattern.
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 from those of example 1. The modified preparation method comprises the following steps:
and fully mixing the PDMS prepolymer and the curing agent according to the volume ratio of 20:1 to obtain a mixed solution B, standing for 1h, placing the mixed solution B in a vacuum box to remove bubbles, spin-coating the mixed solution B on the water-soluble coating 204 at the rotation speed of 500rpm for 5s, uniformly spreading the mixed solution B, then increasing the rotation speed to 1500rpm, coating the mixed solution on a PDMS film with the thickness of about 10 mu m after 20s, and then placing the PDMS film on a hot table at the temperature of 80 ℃ to heat and cure for 1.5h to obtain the PDMS adsorption layer 203.
The printing paste is coated on the PDMS adsorption layer 203 at 500rpm for 10s, then spread evenly, and then increased to 1000rpm for 80s, and then coated into a 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 7 min. The UV light source was turned on at an intensity of 10mw/cm2And 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-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 2 mm.
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:
and fully mixing the PDMS prepolymer and the curing agent according to the volume ratio of 20:1 to obtain a mixed solution B, standing for 1h, placing the mixed solution B in a vacuum box to remove air bubbles, spin-coating the mixed solution B on the water-soluble coating 204 at the rotation speed of 500rpm for 7s, uniformly spreading the mixed solution B, then increasing the rotation speed to 1500rpm, coating the mixed solution on a PDMS film with the thickness of about 15 mu m after 30s, and then placing the PDMS film on a hot table at the temperature of 80 ℃ to heat and cure for 1.5h to obtain the PDMS adsorption layer 203.
The imprinting glue is coated on the PDMS adsorption layer 203 at 500rpm for 10s, then spread out evenly, and then increased to 1000rpm for 65s, and then coated to a film of about 25 μm.
Lightly placing the PDMS transfer template 201 on the glass coated with the impression adhesiveOn the substrate 206, bubbles were removed, and then it was put into a nanoimprinting apparatus, and the chamber was filled with nitrogen gas under a pressure of 0.2Mpa, and pressure was maintained for 6 min. The UV light source is turned on, the intensity of the light source being 10mw/cm2And then irradiating for 6min at room temperature, taking out the imprinting glue after the imprinting glue is solidified, and preparing the imprinting glue layer 202 with the thickness of 25 mu m.
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 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.
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 10-20 mu m.
4. The preparation method of the patterned superhydrophilic and hydrophobic water transfer film according to claim 1, wherein the thickness of the stamping 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 printing 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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| CN114956378A (en) * | 2022-05-23 | 2022-08-30 | 江苏大学 | Conical array surface for adsorbing oil drops in water, oil-water separation net and preparation method thereof |
| 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 |
| CN116175999A (en) * | 2022-11-11 | 2023-05-30 | 西北工业大学 | Replica transfer preparation method of flexible reentrant hydrophobic microstructure array |
| CN117646261A (en) * | 2024-01-30 | 2024-03-05 | 西安稀有金属材料研究院有限公司 | Limited domain electrodeposition method of metal grid line structure for photovoltaic power generation |
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| CN114956378A (en) * | 2022-05-23 | 2022-08-30 | 江苏大学 | Conical array surface for adsorbing oil drops in water, oil-water separation net and preparation method thereof |
| CN114956378B (en) * | 2022-05-23 | 2023-04-14 | 江苏大学 | Conical array surface for adsorbing oil drops in water, oil-water separation net and preparation method thereof |
| 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 |
| CN116175999A (en) * | 2022-11-11 | 2023-05-30 | 西北工业大学 | Replica transfer preparation method of flexible reentrant hydrophobic microstructure array |
| CN117646261A (en) * | 2024-01-30 | 2024-03-05 | 西安稀有金属材料研究院有限公司 | Limited domain electrodeposition method of metal grid line structure for photovoltaic power generation |
| CN117646261B (en) * | 2024-01-30 | 2024-04-05 | 西安稀有金属材料研究院有限公司 | Limited domain electrodeposition method of metal grid line structure for photovoltaic power generation |
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