CN112980241A - Ink composition and preparation method of curved glass - Google Patents
Ink composition and preparation method of curved glass Download PDFInfo
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- CN112980241A CN112980241A CN202110274292.8A CN202110274292A CN112980241A CN 112980241 A CN112980241 A CN 112980241A CN 202110274292 A CN202110274292 A CN 202110274292A CN 112980241 A CN112980241 A CN 112980241A
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D11/00—Inks
- C09D11/02—Printing inks
- C09D11/10—Printing inks based on artificial resins
- C09D11/102—Printing inks based on artificial resins containing macromolecular compounds obtained by reactions other than those only involving unsaturated carbon-to-carbon bonds
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B23/00—Re-forming shaped glass
- C03B23/02—Re-forming glass sheets
- C03B23/023—Re-forming glass sheets by bending
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
- C03C17/006—Surface treatment of glass, not in the form of fibres or filaments, by coating with materials of composite character
- C03C17/008—Surface treatment of glass, not in the form of fibres or filaments, by coating with materials of composite character comprising a mixture of materials covered by two or more of the groups C03C17/02, C03C17/06, C03C17/22 and C03C17/28
- C03C17/009—Mixtures of organic and inorganic materials, e.g. ormosils and ormocers
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D11/00—Inks
- C09D11/02—Printing inks
- C09D11/03—Printing inks characterised by features other than the chemical nature of the binder
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D11/00—Inks
- C09D11/02—Printing inks
- C09D11/03—Printing inks characterised by features other than the chemical nature of the binder
- C09D11/037—Printing inks characterised by features other than the chemical nature of the binder characterised by the pigment
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C2217/00—Coatings on glass
- C03C2217/40—Coatings comprising at least one inhomogeneous layer
- C03C2217/43—Coatings comprising at least one inhomogeneous layer consisting of a dispersed phase in a continuous phase
- C03C2217/44—Coatings comprising at least one inhomogeneous layer consisting of a dispersed phase in a continuous phase characterized by the composition of the continuous phase
- C03C2217/445—Organic continuous phases
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C2217/00—Coatings on glass
- C03C2217/40—Coatings comprising at least one inhomogeneous layer
- C03C2217/43—Coatings comprising at least one inhomogeneous layer consisting of a dispersed phase in a continuous phase
- C03C2217/46—Coatings comprising at least one inhomogeneous layer consisting of a dispersed phase in a continuous phase characterized by the dispersed phase
- C03C2217/47—Coatings comprising at least one inhomogeneous layer consisting of a dispersed phase in a continuous phase characterized by the dispersed phase consisting of a specific material
- C03C2217/475—Inorganic materials
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C2217/00—Coatings on glass
- C03C2217/40—Coatings comprising at least one inhomogeneous layer
- C03C2217/43—Coatings comprising at least one inhomogeneous layer consisting of a dispersed phase in a continuous phase
- C03C2217/46—Coatings comprising at least one inhomogeneous layer consisting of a dispersed phase in a continuous phase characterized by the dispersed phase
- C03C2217/47—Coatings comprising at least one inhomogeneous layer consisting of a dispersed phase in a continuous phase characterized by the dispersed phase consisting of a specific material
- C03C2217/475—Inorganic materials
- C03C2217/477—Titanium oxide
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C2217/00—Coatings on glass
- C03C2217/40—Coatings comprising at least one inhomogeneous layer
- C03C2217/43—Coatings comprising at least one inhomogeneous layer consisting of a dispersed phase in a continuous phase
- C03C2217/46—Coatings comprising at least one inhomogeneous layer consisting of a dispersed phase in a continuous phase characterized by the dispersed phase
- C03C2217/47—Coatings comprising at least one inhomogeneous layer consisting of a dispersed phase in a continuous phase characterized by the dispersed phase consisting of a specific material
- C03C2217/475—Inorganic materials
- C03C2217/478—Silica
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C2218/00—Methods for coating glass
- C03C2218/30—Aspects of methods for coating glass not covered above
- C03C2218/355—Temporary coating
Abstract
The invention relates to a preparation method of an ink composition and curved glass. The ink composition comprises the following components in parts by mass: 60-80 parts of polyether-ether-ketone, 10-18 parts of high-temperature resistant pigment, 2-6 parts of quartz powder, 2-10 parts of defoaming agent, 2-10 parts of pH stabilizer and 1-4 parts of flatting agent, wherein the high-temperature resistant pigment is selected from at least one of lithopone and rutile titanium dioxide. The ink composition has good high-temperature resistance, the protective film made of the ink composition is not easy to fall off in the hot bending process of glass, and the protective film is easy to remove from the glass after the hot bending.
Description
Technical Field
The invention relates to the technical field of glass processing, in particular to an ink composition and a preparation method of curved glass.
Background
With the development of the society and the progress of science and technology, the application of curved glass products in products such as smart phones, tablet computers and wearable devices is more and more common.
The preparation process of the curved glass generally comprises the following steps: cutting → CNC → cleaning → inspection → hot bending → inspection → polishing → cleaning → chemical strengthening → inspection, wherein the hot bending is one of the key processes for preparing curved glass, and the process comprises the steps of placing the glass with the carved appearance in a mold, placing the mold in a hot bending machine, and carrying out the processes of preheating, pressing, cooling and the like to enable the glass to be formed into the curved glass in the mold. However, in the hot bending process, the glass is in a softened state, impurities in the air are easily attached to the surface of the glass to form concave-convex points, mold marks are easily left, and the appearance of the glass, the yield of products and the production cost are affected.
At present, a method for improving the influence of hot bending on the appearance of curved glass by preparing a protective film on the glass to be subjected to hot bending by using ink and removing the protective film after the hot bending is finished appears. However, in practical processes, the protective film is easily peeled off from the glass, and thus the improvement effect of the protective film is limited.
Disclosure of Invention
In view of the above, there is a need for an ink composition, from which a protective film is less likely to fall off from glass during hot bending, which can effectively reduce the influence of hot bending on the appearance of curved glass, and which can be easily removed after hot bending.
An ink composition comprises the following components in parts by mass: 60-80 parts of polyether-ether-ketone, 10-18 parts of high-temperature-resistant pigment, 2-6 parts of quartz powder, 2-10 parts of defoaming agent, 2-10 parts of pH stabilizer and 1-4 parts of leveling agent, wherein the high-temperature-resistant pigment is selected from at least one of lithopone and rutile titanium dioxide.
The ink composition comprises polyether-ether-ketone, lithopone, quartz powder, a defoaming agent, a pH stabilizer and a flatting agent, and through the mutual matching of the polyether-ether-ketone, the high-temperature resistant pigment, the quartz powder, the defoaming agent, the pH stabilizer and the flatting agent, a protective film prepared from the ink composition is not easy to fall off from glass under a high-temperature condition (200-800 ℃) in the hot bending process, and the protective film formed from the ink composition is easy to remove after the hot bending. The ink composition is applied to the preparation of curved glass, so that the influence of hot bending on the appearance of the curved glass can be effectively reduced, the processing efficiency of products is improved, the yield of the products is improved, and the production cost of the curved glass is reduced.
In one embodiment, the defoamer is selected from at least one of silicone defoamers, polyether defoamers, and polyether modified polysiloxane defoamers.
In one embodiment, the leveling agent is at least one selected from the group consisting of a propylene resin, a polyether-modified polysiloxane, and a polymethylphenylsiloxane.
In one embodiment, the pH stabilizer is selected from one of ammonia, melamine-alkyd, urea-formaldehyde, and alkyd.
In one embodiment, the ink composition has a pH of 6 to 9.5.
In one embodiment, the ink composition comprises, in parts by mass: 65-75 parts of polyether-ether-ketone, 12-18 parts of lithopone, 3-5 parts of quartz powder, 3-7 parts of defoaming agent, 3-7 parts of pH stabilizer and 2-3 parts of flatting agent.
A preparation method of curved glass comprises the following steps:
placing the ink composition on glass to be thermally bent, and drying to prepare a protective film; and
and after the glass prepared with the protective film is subjected to hot bending, removing the protective film to prepare the curved glass.
In one embodiment, the thickness of the protective film is 10 μm to 30 μm.
In one embodiment, the glass after hot bending is cleaned by ultrasonic wave to remove the protective film.
After the step of removing the protective film, the method for preparing the curved glass further comprises the step of performing strengthening treatment on the glass with the protective film removed.
Detailed Description
The present invention will now be described more fully hereinafter for purposes of facilitating an understanding thereof, and may be embodied in many different forms and are not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
One embodiment of the present invention provides an ink composition, which includes, in parts by mass: 60-80 parts of polyether-ether-ketone, 10-18 parts of high-temperature resistant pigment, 2-6 parts of quartz powder, 2-10 parts of defoaming agent, 2-10 parts of pH stabilizer and 1-4 parts of flatting agent, wherein the high-temperature resistant pigment is selected from at least one of lithopone and rutile titanium dioxide.
Specifically, poly-ether-ether-ketone (PEEK) is a high polymer composed of repeating units containing one ketone bond and two ether bonds in a main chain structure, and is a semi-crystalline high polymer material. The polyetheretherketone has the physical and chemical properties of high temperature resistance, chemical corrosion resistance and the like, the melting point is 343 ℃, the softening point is 168 ℃, the tensile strength is 132-148 MPa, and the glass transition temperature (Tg) is 143 ℃. The polyetheretherketone is used as a main component of the ink composition, so that the protective film made of the ink composition can resist high temperature, and is not easy to separate from glass and fall off from the glass under the condition of 200-800 ℃.
In an alternative specific example, the polyether ether ketone is present in an amount of 60 parts, 63 parts, 65 parts, 68 parts, 70 parts, 72 parts, 75 parts, or 80 parts by mass. Further, the mass portion of the polyether-ether-ketone is 63-75 portions. Furthermore, the mass portion of the polyether-ether-ketone is 65 to 75 portions.
Specifically, lithopone is a mixture of zinc sulfide and barium sulfate, and is an inorganic white pigment. The lithopone is used as the component of the ink composition, so that the high-temperature resistance of the protective film made of the ink composition can be improved, and the protective film is more heat-resistant. Rutile titanium dioxide has a stable crystal lattice, is an important white pigment, and has superior whiteness, tinting strength, hiding power, weather resistance, heat resistance and chemical stability, particularly no toxicity, compared with other white pigments.
In an alternative specific example, the high temperature resistant pigment is 10 parts, 11 parts, 12 parts, 13 parts, 15 parts, 16 parts, 17 parts, or 18 parts by mass. Further, the high-temperature resistant pigment is 12-18 parts by mass.
In particular, the quartz powder is a hard, wear-resistant and chemically stable silicate mineral, and the main mineral component of the quartz powder is SiO2. Quartz powder is used as a filler in the above ink composition. In an alternative specific example, the quartz powder is 2 parts, 2.5 parts, 3 parts, 3.5 parts, 4 parts, 4.5 parts, 5 parts or 6 parts by mass. Furthermore, the mass portion of the quartz powder is 2.5 to 5. Furthermore, the mass portion of the quartz powder is 3 to 5. Optionally, the particle size of the quartz powder is 25um to 38 um. Furthermore, the particle size of the quartz powder is 18 um-23 um.
Specifically, the defoaming agent is used as a component of the ink composition, so that the surface tension of the solution can be reduced, the formation of foam can be prevented, or the original foam can be reduced or eliminated, the film forming of the prepared protective film is more uniform, the sticking rate of the protective film to glass is high, and the protective film is not easy to fall off from the glass.
Optionally, the defoamer is selected from at least one of silicone defoamers, polyether defoamers, and polyether modified polysiloxane defoamers. Specifically, the silicone defoaming agent is at least one selected from the group consisting of polysiloxane, polydimethylsiloxane and fluorinated silicone oil. The polyether defoaming agent is at least one selected from octyl phenol polyoxyethylene ether, polyoxypropylene ethylene oxide glycerol ether and polyether silicone oil. The polyether modified polysiloxane defoaming agent is at least one selected from polydimethylsiloxane, silicon dioxide and silicone glycol. It is to be understood that in other embodiments, the defoaming agent is not limited to the above, and may be other substances that can function as a defoaming agent.
In an alternative specific example, the mass part of the defoaming agent is 2 parts, 3 parts, 4 parts, 5 parts, 6 parts, 7 parts, 8 parts, or 10 parts. Furthermore, the mass portion of the defoaming agent is 2.5 to 8. Furthermore, the mass portion of the defoaming agent is 3 to 7.
Specifically, a pH stabilizer is used as a component of the above-mentioned ink composition for stabilizing the pH value of the ink. Optionally, the pH stabilizer is selected from one of ammonia, melamine-alkyd, urea-formaldehyde, and alkyd. It is to be understood that, in other embodiments, the pH stabilizer is not limited to the above, and may be other substances that can be used as the pH stabilizer.
In the present embodiment, the components of the ink composition are present in a form of being mixed into one system. The pH of the ink composition is 7.6 to 9.5. When the pH value is 8-9, the base body can be more stable, and the quality of the base body is ensured. Further, the pH of the ink composition is 7.6 to 9.5. It will be appreciated that in other embodiments, the ink compositions described above may also be presented in separate packages, the components of which are mixed at the time of use.
In an alternative specific example, the mass part of the pH stabilizer is 2 parts, 3 parts, 4 parts, 5 parts, 6 parts, 7 parts, 8 parts, 9 parts, or 10 parts. Further, the mass portion of the pH stabilizer is 3-9. Furthermore, the mass portion of the pH stabilizer is 3 to 7.
Specifically, the leveling agent can promote the ink to form a flat, smooth and uniform coating film in the drying film-forming process, and as an auxiliary agent, the leveling agent can effectively reduce the surface tension of the ink, improve the leveling property and uniformity of the ink, reduce the possibility of generating spots and stains during brushing, increase the coverage property, enable the film to be formed uniformly and naturally, and further enable the protective film prepared from the ink composition to be difficult to fall off from glass.
Optionally, the leveling agent is selected from at least one of propylene resin, polyether modified polysiloxane and polymethylphenylsiloxane. Of course, in other embodiments, the leveling agent is not limited to the above, and other substances that can act as a leveling agent may be used.
In an alternative specific example, the mass part of the leveling agent is 1 part, 1.5 parts, 2 parts, 2.5 parts, 3 parts, 3.5 parts, or 4 parts. Further, the mass portion of the leveling agent is 1.5-3.5. Furthermore, the mass part of the leveling agent is 2 to 3.
In one embodiment, the ink composition comprises the following components in parts by mass: 60-80 parts of polyether-ether-ketone, 10-18 parts of high-temperature-resistant pigment, 2-6 parts of quartz powder, 2-10 parts of defoaming agent, 2-10 parts of pH stabilizer and 1-4 parts of flatting agent.
In one embodiment, the ink composition includes, in parts by mass: 63-75 parts of polyether-ether-ketone, 12-18 parts of high-temperature-resistant pigment, 2.5-5 parts of quartz powder, 2.5-8 parts of defoaming agent, 3-9 parts of pH stabilizer and 1.5-3.5 parts of flatting agent. Optionally, the ink composition consists of the following components in parts by mass: 63-75 parts of polyether-ether-ketone, 12-18 parts of high-temperature-resistant pigment, 2.5-5 parts of quartz powder, 2.5-8 parts of defoaming agent, 3-9 parts of pH stabilizer and 1.5-3.5 parts of flatting agent.
In one embodiment, the ink composition includes, in parts by mass: 65-75 parts of polyether-ether-ketone, 12-18 parts of high-temperature-resistant pigment, 3-5 parts of quartz powder, 3-7 parts of defoaming agent, 3-7 parts of pH stabilizer and 2-3 parts of flatting agent. Optionally, the ink composition consists of the following components in parts by mass: 65-75 parts of polyether-ether-ketone, 12-18 parts of high-temperature-resistant pigment, 3-5 parts of quartz powder, 3-7 parts of defoaming agent, 3-7 parts of pH stabilizer and 2-3 parts of flatting agent.
In some embodiments, the ink composition further includes 1 to 2 parts by mass of a dispersant. The dispersant is used as a component of the ink composition and is helpful for wetting and dispersing lithopone.
The ink composition described above includes the following advantages:
(1) through the mutual matching of the polyether-ether-ketone, the high-temperature-resistant pigment, the quartz powder, the defoaming agent, the pH stabilizer and the flatting agent, the protective film prepared from the ink composition is resistant to high temperature (200-800 ℃) and is not easy to fall off from glass in the hot bending process, the glass in the hot bending process can be effectively protected, and the protective film formed by the ink composition is easy to remove after the hot bending process, so that the subsequent process and the product appearance are not easily influenced.
(2) The components of the ink composition are stable, are not easy to volatilize under the condition of high temperature (200-800 ℃), are not easy to generate harm to operators, and are not easy to pollute the surrounding environment.
In addition, an embodiment of the present invention also provides a method for producing curved glass, including steps a to b:
step a: and (3) pretreating the glass to be thermally bent.
In particular, the pre-treatment comprises cleaning the glass to be hot bent. Optionally, the glass to be thermally bent is cleaned by means of ultrasonic waves in combination with a cleaning liquid. In a specific example, the glass to be thermally bent is placed in an ultrasonic cleaning machine, a cleaning agent is added, the surface of the glass to be thermally bent is cleaned by combining the cleaning agent through high-frequency mechanical oscillation so as to remove dirt on the surface, and then the cleaned glass to be thermally bent is dried for later use.
In some embodiments, before cleaning the glass to be hot bent, the method further comprises the step of cutting the planar glass to form the glass to be hot bent. Optionally, a flat glass is cut with a toothless diamond cutter to form a plurality of glasses to be hot bent. Of course, in some embodiments, the step of cutting the flat glass to form the glass to be heat-bent may be omitted, and in this case, the glass to be heat-bent of a target size may be directly prefabricated or a flat glass of a target size may be directly purchased as the glass to be heat-bent.
In some embodiments, the method further comprises, before the hot bending, the step of shaping the pretreated glass to be hot bent. Specifically, before hot bending, the pretreated glass to be subjected to hot bending is subjected to edging, perforating and/or grooving treatment, and then is cleaned and dried.
Optionally, the glass to be hot-bent after the pretreatment is subjected to shaping treatment by using a numerical control machine (CNC). Specifically, firstly, CNC is adopted to perform shape roughing on the glass to be subjected to hot bending after pretreatment, and then the glass is refined.
Step b: and (3) placing the ink composition of any embodiment on the pretreated glass to be subjected to hot bending, and drying to prepare the protective film.
Optionally, the manner of placing the ink composition on the pretreated glass to be thermally bent is coating or silk-screening. Of course, the manner of placing the ink composition on the glass to be thermally bent after the pretreatment is not limited to the above, and other manners are also possible.
Specifically, the drying temperature is 100-150 ℃. Further, the drying temperature is 120-140 ℃.
Optionally, the thickness of the protective film is 10 μm to 30 μm. The thickness of the protective film on the glass to be thermally bent is set to be 10-30 μm, so that the substrate can be cured and attached to the glass. Further, the thickness of the protective film is 10 μm to 30 μm.
Step c: and (4) after the glass with the protective film is subjected to hot bending, removing the protective film to prepare the curved glass.
Specifically, the step of hot bending the glass prepared with the protective film comprises the following steps: and (4) placing the glass with the protective film in a mould, and then carrying out hot bending. The parameters of the die and the hot bending can be adjusted according to the radian of the curved glass prepared according to actual needs. Optionally, the mold comprises a male mold, a positioning block and a female mold, and the female mold is provided with a positioning groove. And (3) placing the glass to be hot-bent in a positioning groove of the female die, closing the die, and then preheating, profiling and cooling to prepare the 3D glass. Optionally, the preheating temperature is 450-650 ℃, the molding temperature is 700-750 ℃, and the cooling temperature is 300-450 ℃.
Optionally, the hot bent glass is cleaned by ultrasonic waves to remove the protective film on the hot bent glass. It is understood that in other embodiments, the hot bent glass may be directly washed with water or water containing a detergent to remove the protective film on the hot bent glass.
In some embodiments, after the step of removing the protective film, a step of performing a strengthening treatment on the glass from which the protective film is removed is further included. By carrying out strengthening treatment on the glass subjected to hot bending treatment, the mechanical property, the thermal stability and the safety of the prepared curved glass can be improved. Optionally, the hot-bent glass is strengthened using a two-step ion exchange process. Specifically, the first step of ion exchange is the exchange of lithium ions in the glass with sodium ions in the molten salt, and the second step of ion exchange is the exchange of sodium ions in the glass with potassium ions in the molten salt. It is understood that in other embodiments, when the glass substrate is a glass substrate that has been subjected to a strengthening treatment, the step of subjecting the hot-bent glass to the strengthening treatment may be omitted.
In some embodiments, the method for preparing the curved glass further comprises the step of performing ink jet printing on the strengthened glass. The surface of the curved glass prepared by ink-jet printing on the strengthened glass can have colors, so that the application scenes of the 3D glass are enriched. Specifically, the color of the ink used for ink-jet printing can be selected as desired; the thickness and the number of layers of the ink jet can be adjusted according to actual requirements.
The preparation method of the curved glass at least has the following advantages:
(1) the protective film is firmly adhered to the surface of the glass to be thermally bent before the glass is thermally bent, and the protective film is not easy to fall off from the glass in the thermal bending process, so that the prepared curved glass is not easy to have defects such as mold marks, concave-convex points and the like which influence the appearance of a product, and the product yield is improved.
(2) Because the defects which are formed by hot bending and affect the appearance of the product do not exist, the original process for eliminating the defects (such as polishing, but the polishing takes longer time and is easy to cause product scratches, edge breakage and the like) is also omitted, so that the risk of secondary defects is reduced, and the cost is reduced.
(3) The ink composition for preparing the protective film has less volatilization under the condition of high temperature (200-800 ℃), is easy to remove from hot bent glass, is not easy to cause harm to operators and is not easy to pollute the surrounding environment.
DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION
The following detailed description is given with reference to specific examples. The following examples are not specifically described, and other components except inevitable impurities are not included. Reagents and instruments used in the examples are all conventional in the art and are not specifically described. The experimental procedures, in which specific conditions are not indicated in the examples, were carried out according to conventional conditions, such as those described in the literature, in books, or as recommended by the manufacturer. In the following examples and comparative examples, parts are by weight, DuPont (model: 500P BK602) manufactured by PEEK, lithopone (model: B301) manufactured by Silicone (trade name), Sanjin (model: SJ-804) manufactured by acrylic resin (trade name: 18um) manufactured by Quartz powder Mill, and Ministry of Qi of Shanghai (trade name: 18 um).
Example 1
As shown in Table 1, the ink composition used in this example had the following composition: 80 parts of polyether ether ketone, 10 parts of lithopone, 4 parts of quartz powder, 2 parts of polysiloxane, 2 parts of ammonia water and 2 parts of acrylic resin, wherein the pH value of the ink composition is 9.5.
The preparation method of the curved glass of the embodiment includes but is not limited to the following steps:
(1) the glass (thickness 0.6mm) was placed in an ultrasonic cleaner, and a cleaning solution (manufactured by HONSON/SUTOUTAO CHEMICAL, model: SEC-19310) was added to clean the surface of the glass, followed by drying.
(2) And adopting CNC to roughen the appearance of the cleaned and dried glass, and then finely trimming to obtain the glass to be hot-bent.
(3) The components of the ink composition are uniformly mixed, coated on the glass to be thermally bent prepared in the step (2) (the printing effect is shown in the table 1), and dried at the temperature of 120 ℃ to prepare the protective film with the thickness of 20 microns.
(4) Carrying out hot bending treatment on the glass with the protective film prepared in the step (3): and hot bending is performed by adopting a 28-station full-automatic hot bending machine. The peeling condition of the protective film after the heat bending treatment was checked by visual appearance inspection under a lamp box, and the results are shown in table 1.
(5) And (4) placing the glass subjected to the hot bending treatment in water, and carrying out ultrasonic cleaning for 30 min. The removal of the protective film was visually checked under a lamp box, and the results are shown in table 1.
(6) Chemically toughening the cleaned and inspected glass (the toughening furnace is a cisjiwei full-automatic toughening furnace, and the model is HGR 1200-B); and finally, checking to finish the manufacturing process before the 3D glass is produced.
Example 2
As shown in Table 1, the ink composition used in this example had the following composition: 70 parts of polyether ether ketone, 15 parts of lithopone, 3 parts of quartz powder, 5 parts of polysiloxane, 5 parts of ammonia water and 2 parts of acrylic resin, wherein the pH value of the ink composition is 9.
The method of manufacturing the curved glass of this example was substantially the same as the method of manufacturing the curved glass of example 1, except that the ink composition used was different. The printing effect, the peeling of the protective film after the hot bending treatment, and the removal effect of the protective film after the hot bending treatment of the ink composition of the present example are shown in table 1.
Example 3
As shown in Table 1, the ink composition used in this example had the following composition: 75 parts of polyether ether ketone, 12 parts of lithopone, 3 parts of quartz powder, 3 parts of polysiloxane, 4 parts of ammonia water and 3 parts of acrylic resin, wherein the pH value of the ink composition is 8.5.
The method of manufacturing the curved glass of this example was substantially the same as the method of manufacturing the curved glass of example 1, except that the ink composition used was different. The printing effect, the peeling of the protective film after the hot bending treatment, and the removal effect of the protective film after the hot bending treatment of the ink composition of the present example are shown in table 1.
Example 4
As shown in Table 1, the ink composition used in this example had the following composition: 65 parts of polyether ether ketone, 18 parts of lithopone, 5 parts of quartz powder, 7 parts of polysiloxane, 3 parts of ammonia water and 2 parts of acrylic resin, wherein the pH value of the ink composition is 8.
The method of manufacturing the curved glass of this example was substantially the same as the method of manufacturing the curved glass of example 1, except that the ink composition used was different. The printing effect, the peeling of the protective film after the hot bending treatment, and the removal effect of the protective film after the hot bending treatment of the ink composition of the present example are shown in table 1.
Example 5
As shown in Table 1, the ink composition used in this example had the following composition: 60 parts of polyether ether ketone, 15 parts of lithopone, 4 parts of quartz powder, 10 parts of polysiloxane, 10 parts of ammonia water and 1 part of acrylic resin, wherein the pH value of the ink composition is 7.6.
The method of manufacturing the curved glass of this example was substantially the same as the method of manufacturing the curved glass of example 1, except that the ink composition used was different. The printing effect, the peeling of the protective film after the hot bending treatment, and the removal effect of the protective film after the hot bending treatment of the ink composition of the present example are shown in table 1.
Comparative example 1
As shown in Table 1, the composition of the ink composition used in this comparative example was substantially the same as that of example 2, except that the same parts of polyimide (manufacturer: Zhongtian Sheng, type: ZTS-PI-I) were used in place of polyetheretherketone. The ink composition used in this comparative example had the following composition: 70 parts of polyimide, 15 parts of lithopone, 3 parts of quartz powder, 5 parts of polysiloxane, 5 parts of ammonia water and 2 parts of acrylic resin, wherein the pH value of the ink composition is 9.
The curved glass of this comparative example was prepared in substantially the same manner as the curved glass of example 2, except that the ink composition used was different. The printing effect of the ink composition of this comparative example, the peeling of the protective film after the hot bending treatment, and the removal effect of the protective film after the hot bending treatment are shown in table 1.
Comparative example 2
As shown in Table 1, the composition of the ink composition used in this comparative example was substantially the same as that of example 2, except that the same parts of rutile titanium (manufactured by Dow, model R2195) were used in place of the quartz powder. The ink composition used in this comparative example had the following composition: 70 parts of polyether ether ketone, 15 parts of lithopone, 3 parts of calcium carbonate, 5 parts of polysiloxane, 5 parts of ammonia water and 2 parts of acrylic resin, wherein the pH value of the ink composition is 9.
The curved glass of this comparative example was prepared in substantially the same manner as the curved glass of example 2, except that the ink composition used was different. The printing effect of the ink composition of this comparative example, the peeling of the protective film after the hot bending treatment, and the removal effect of the protective film after the hot bending treatment are shown in table 1.
TABLE 1
The "residue on the mold" in table 1 means substances adhered to the surface of the mold after the hot bending treatment, including impurities such as a protective film, particles in air, small glass chips, and fibers; "percent residue on the mold" refers to the amount of residue on the mold surface.
As can be seen from table 1, the protective film prepared using the ink composition having the composition of 60 to 80 parts of polyetheretherketone, 10 to 18 parts of lithopone, 2 to 6 parts of quartz powder, 2 to 10 parts of polysiloxane, 2 to 10 parts of pH ammonia, and 1 to 4 parts of propylene resin has good high temperature resistance, is not easily peeled off from glass during the hot bending process, and is easily removed from glass after the hot bending process is completed.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. The ink composition is characterized by comprising the following components in parts by mass: 60-80 parts of polyether-ether-ketone, 10-18 parts of high-temperature-resistant pigment, 2-6 parts of quartz powder, 2-10 parts of defoaming agent, 2-10 parts of pH stabilizer and 1-4 parts of leveling agent, wherein the high-temperature-resistant pigment is selected from at least one of lithopone and rutile titanium dioxide.
2. The ink composition according to claim 1, wherein the defoaming agent is at least one selected from the group consisting of a silicone defoaming agent, a polyether defoaming agent, and a polyether-modified silicone defoaming agent.
3. The ink composition according to claim 1, wherein the leveling agent is at least one selected from the group consisting of a propylene resin, a polyether-modified polysiloxane, and a polymethylphenylsiloxane.
4. The ink composition of claim 1, wherein the pH stabilizer is selected from one of ammonia, melamine-alkyd, urea-formaldehyde, and alkyd.
5. The ink composition according to claim 1, wherein the ink composition has a pH of 7.6 to 9.5.
6. The ink composition according to any one of claims 1 to 5, characterized in that the ink composition comprises, in parts by mass: 65-75 parts of polyether-ether-ketone, 12-18 parts of lithopone, 3-5 parts of quartz powder, 3-7 parts of defoaming agent, 3-7 parts of pH stabilizer and 2-3 parts of flatting agent.
7. The preparation method of the curved glass is characterized by comprising the following steps:
placing the ink composition according to any one of claims 1 to 6 on glass to be thermally bent, and drying to prepare a protective film; and
and after the glass prepared with the protective film is subjected to hot bending, removing the protective film to prepare the curved glass.
8. The method for producing a curved glass according to claim 7, wherein the thickness of the protective film is 10 μm to 30 μm.
9. The method for manufacturing curved glass according to claim 7, wherein the thermally bent glass is cleaned by ultrasonic waves to remove the protective film.
10. The method for producing a curved glass according to any one of claims 7 to 9, further comprising a step of performing a strengthening treatment on the glass from which the protective film is removed, after the step of removing the protective film.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1468729A (en) * | 2002-06-12 | 2004-01-21 | 住友橡胶工业株式会社 | Lithographic printing method and printing ink with the same method |
| CN108264790A (en) * | 2018-01-19 | 2018-07-10 | 金华市青荷新材料技术有限公司 | A kind of colorful particle of high temperature resistant water-water and preparation method thereof |
| CN109401425A (en) * | 2018-10-31 | 2019-03-01 | 深圳市臻之彩高分子材料科技有限公司 | A kind of bend glass Bending Processing protection ink and protection technique |
| CN110072303A (en) * | 2019-05-31 | 2019-07-30 | 宁波石墨烯创新中心有限公司 | A kind of Electric radiant Heating Film and manufacturing method, heating device |
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2021
- 2021-03-15 CN CN202110274292.8A patent/CN112980241A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1468729A (en) * | 2002-06-12 | 2004-01-21 | 住友橡胶工业株式会社 | Lithographic printing method and printing ink with the same method |
| CN108264790A (en) * | 2018-01-19 | 2018-07-10 | 金华市青荷新材料技术有限公司 | A kind of colorful particle of high temperature resistant water-water and preparation method thereof |
| CN109401425A (en) * | 2018-10-31 | 2019-03-01 | 深圳市臻之彩高分子材料科技有限公司 | A kind of bend glass Bending Processing protection ink and protection technique |
| CN110072303A (en) * | 2019-05-31 | 2019-07-30 | 宁波石墨烯创新中心有限公司 | A kind of Electric radiant Heating Film and manufacturing method, heating device |
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