CN112552541A - Super-weather-resistant ink transfer film and preparation method and application thereof - Google Patents

Super-weather-resistant ink transfer film and preparation method and application thereof Download PDF

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Publication number
CN112552541A
CN112552541A CN202011313246.6A CN202011313246A CN112552541A CN 112552541 A CN112552541 A CN 112552541A CN 202011313246 A CN202011313246 A CN 202011313246A CN 112552541 A CN112552541 A CN 112552541A
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coating
transfer film
transfer
ink transfer
powder coating
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CN202011313246.6A
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CN112552541B (en
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魏育福
莫剑辉
蔡劲树
李啟聪
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GUANGDONG HUAJIANG POWDER TECHNOLOGY CO LTD
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GUANGDONG HUAJIANG POWDER TECHNOLOGY CO LTD
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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
    • C08J7/04—Coating
    • C08J7/042—Coating with two or more layers, where at least one layer of a composition contains a polymer 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
    • C09D127/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Coating compositions based on derivatives of such polymers
    • C09D127/02—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment
    • C09D127/12—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
    • 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
    • C09D167/00—Coating compositions based on polyesters obtained by reactions forming a carboxylic ester link in the main chain; Coating compositions based on derivatives of such polymers
    • 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
    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/03—Powdery paints
    • C09D5/033—Powdery paints characterised by the additives
    • 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
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/65—Additives macromolecular
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2367/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
    • C08J2367/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2427/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers
    • C08J2427/02—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment
    • C08J2427/12—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • C08K2003/2237—Oxides; Hydroxides of metals of titanium
    • C08K2003/2241—Titanium dioxide
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
    • C08K2003/3045—Sulfates
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy

Abstract

The invention provides an ultra-weather-resistant ink transfer film and a preparation method thereof, wherein the ultra-weather-resistant ink transfer film comprises a carrier material and a transfer coating layer arranged on the carrier material; the transfer coating comprises an A transfer coating and a B transfer coating arranged on the A transfer coating; the A transfer coating comprises the following components in percentage by mass: 96% -98.9% of thermosetting fluorocarbon varnish; 0.2 to 1 percent of acrylic resin; 0.5 to 1 percent of solvent; 0.1 to 0.5 percent of hardening and wear-resisting agent; the B transfer coating is thermosetting fluorocarbon printing ink, is applied to the preparation of metal products, is combined with powder coating to act synergistically, improves weather resistance, solvent resistance, corrosion resistance and scratch resistance, can also play a remarkable stripping effect, and ensures the continuous stripping of the transfer coating; the powder coating and the process conditions in the invention are combined, so that the metal surface can be remarkably protected and beautified.

Description

Super-weather-resistant ink transfer film and preparation method and application thereof
Technical Field
The invention relates to the field of preparation of transfer films, in particular to an ultra-weather-resistant ink transfer film and a preparation method and application thereof.
Background
Along with the wide application of the aluminum profile door and window curtain wall sprayed by the powder coating in engineering and civil markets, the application of the heat transfer printing treatment technology on the surface of the aluminum profile is favored, the variety and the color of the aluminum profile door and window curtain wall sprayed by the powder coating are greatly enriched, and the market application field and the space of the powder coating are widened. However, the carrier film used in the current thermal transfer aluminum profile industry generally is a film which is made of smooth PET, matte PET and temperature-resistant PET as base materials and has the characteristics of low surface energy on the surface and controllable bonding force with ink, the ink is coated on the surface of the carrier film, the ink containing the carrier film is cut into required sizes according to requirements in the subsequent processing process, the surface can be hollowed out and drilled simultaneously, and finally the carrier film is pressed together with an attachment surface under the conditions of high temperature and high pressure, and finally the carrier film is peeled off. Due to the fact that the transfer film is mainly prepared from the thermal sublimation ink, the thermal sublimation ink has the reasons of photo-thermal instability, high-temperature sublimation, low-temperature sublimation, poor weather resistance and light fastness of the dye and the like, and the QUV resistance and the artificial accelerated aging resistance of a xenon lamp of an aluminum profile product prepared from the thermal sublimation ink are poor. In addition, no matter the aluminum base powder coating is polyester, polyurethane or fluorocarbon, due to the defects of the heat sublimation printing ink used in the transfer printing ink, the distribution of the surface characteristics of the transfer printing film influences the coating uniformity and the inking definition of the printing ink on the surface of the transfer printing film, the peeling force between the printing ink and the carrier film needs to be controlled, the temperature condition in the processing technology also influences the continuous peeling of the carrier film, and the problem of poor weather resistance of the existing heat transfer aluminum product is also caused.
In summary, the above problems still remain to be solved in the field of ink transfer film preparation.
Disclosure of Invention
Based on the above, in order to solve the problems that the thermal sublimation ink has the reasons of photo-thermal instability, high-temperature sublimation, low-temperature sublimation, poor weather resistance and light fastness of the dye and the like, so that the QUV resistance and the manual accelerated aging resistance of a xenon lamp of an aluminum profile product prepared by the thermal sublimation ink are poor, and the continuous stripping of a carrier film is influenced, the invention provides an ultra-weather-resistant ink transfer film, and the specific technical scheme is as follows:
an ultra-weatherable ink transfer film comprises a carrier material and a transfer coating layer arranged on the carrier material; the transfer coating comprises an A transfer coating and a B transfer coating arranged on the A transfer coating; the raw materials of the A transfer coating comprise the following components in percentage by mass:
96% -98.9% of thermosetting fluorocarbon varnish; 0.2 to 2 percent of acrylic resin; 0.5 to 1 percent of solvent; 0.1 to 0.5 percent of hardening and wear-resisting agent;
the B transfer coating is thermosetting fluorocarbon ink.
Preferably, the viscosity of the thermosetting fluorocarbon varnish at normal temperature is 130-140 s.
Preferably, the viscosity of the thermosetting fluorocarbon ink at normal temperature is 20 to 60 s.
Preferably, the solvent is one or a mixture of two of butyl acetate and xylene.
Preferably, the hardening and wear-resisting agent is one or more of polyethylene wax, polytetrafluoroethylene wax and amide wax.
In addition, the invention also provides a preparation method of the super weather-resistant ink transfer film, which comprises the following steps:
adding acrylic resin, a solvent and a hardening and wear-resisting agent into the thermosetting fluorocarbon varnish, and stirring at a stirring speed of 6000-7000r/min until the acrylic resin is completely dissolved to obtain a colloidal mixture A;
under the condition of stirring, continuously adding n-butanol into the colloidal mixture A for dilution to obtain a mixture B with the viscosity of 15-25 s;
printing the mixture B on a support material by offset printing to obtain a transfer coating A with a thickness of 4-6 μm;
and printing a B transfer coating with the thickness of 5-11 mu m and a specific pattern on the A transfer coating by gravure printing to obtain the super weather-resistant ink transfer film.
In addition, the invention also provides an application of the super weather-resistant ink transfer film, and the application is to apply the super weather-resistant ink transfer film to metal surface treatment.
Preferably, the metal surface treatment comprises a powder coating treatment and an ultra-weatherable ink transfer film treatment.
Preferably, the powder coating treatment is: and (3) electrostatically spraying the powder coating on the metal surface, and then precuring for 6-12 min at the temperature of 160-190 ℃ to obtain the powder coating.
Preferably, the super weatherable ink transfer film is treated as follows: attaching the super weather-resistant ink transfer film on the powder coating, and treating the powder coating at a vacuum degree of-0.1 MPa to-0.05 MPa and a temperature of 130 ℃ to 180 ℃ for 10min to 20min to ensure that the transfer coating on the super weather-resistant ink transfer film is attached to the surface of the powder coating; then baking for 10-15 min at 200-210 ℃, taking out, cooling to below 50 ℃, tearing off the carrier material, and obtaining the product with good weather resistance.
In the scheme, the transfer coating and the carrier material have better stripping performance, the ink cannot excessively adhere to the carrier material due to the change of temperature in the subsequent process treatment, and the thermosetting fluorocarbon varnish, the acrylic resin and the hardening and wear-resisting agent in the A transfer coating interact with each other, so that the phenomena of pinholes and fog shadow after the A transfer coating is transferred can be reduced, and the solvent resistance and the corrosion resistance of the A transfer coating can be improved; the transfer coating is set as the A transfer coating and the B transfer coating, so that the solvent resistance, the weather resistance, the corrosion resistance and the scratch resistance can be improved, a remarkable stripping effect can be achieved, and the continuous stripping of the transfer coating is ensured; in addition, the preparation method of the super weather-resistant transfer film is simple, and the application of the super weather-resistant transfer film has certain convenience; the super weather-resistant ink transfer film is applied to metal surface treatment, and the powder coating and the process conditions in the invention are combined, so that the metal surface is remarkably protected and beautiful, and the solvent resistance, weather resistance, corrosion resistance and scratch resistance of a metal product are further improved.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to embodiments thereof. It should be understood that the detailed description and specific examples, while indicating the scope of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.
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 herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
In one embodiment of the invention, the super weather-resistant ink transfer film comprises a carrier material and a transfer coating layer arranged on the carrier material; the transfer coating comprises an A transfer coating and a B transfer coating arranged on the A transfer coating; the raw materials of the A transfer coating comprise the following components in percentage by mass:
96% -98.9% of thermosetting fluorocarbon varnish; 0.2 to 2 percent of acrylic resin; 0.5 to 1 percent of solvent; 0.1 to 0.5 percent of hardening and wear-resisting agent;
the B transfer coating is thermosetting fluorocarbon ink.
The transfer coating and the carrier material in the scheme have good stripping performance, ink cannot excessively adhere to the carrier material due to temperature change in subsequent process treatment, and the thermosetting fluorocarbon varnish, acrylic resin and the hardening and wear-resisting agent in the transfer coating A interact with each other, so that the phenomena of pinholes and fog shadows after the transfer coating A is transferred can be reduced, and the solvent resistance, the weather resistance and the corrosion resistance of the transfer coating A can be improved.
In one embodiment, the thermosetting fluorocarbon varnish includes a fluororesin but no pigment or filler.
In one embodiment, the thermosetting fluorocarbon ink comprises fluororesin but contains pigment and filler.
In one embodiment, the viscosity of the thermosetting fluorocarbon varnish at normal temperature is 130-140 s. The weather resistance of the prepared transfer film is affected by the viscosity of the thermosetting fluorocarbon varnish which is too high or too low, so that the viscosity of the prepared transfer film is limited to 130-140s in order to ensure the quality of the prepared transfer film, and the viscosity is measured by a four-cup-coating viscometer.
In one embodiment, the viscosity of the thermosetting fluorocarbon ink at normal temperature is 20-60 s. The weather resistance of the transfer film is affected by the viscosity of the thermosetting fluorocarbon ink being too high or too low, and therefore, in order to ensure the quality of the transfer film, the viscosity is limited to 20-60s as measured by a four-cup-in-one viscometer.
In one embodiment, the thermosetting fluorocarbon ink has a solid content of 50% to 80%.
In one embodiment, the acrylic resin is a thermoplastic acrylic resin with a molecular weight of 75000-120000, an acid value KOH/(mg/g) of 2-4, and a glass transition temperature (Tg) of 58-60 ℃.
In one embodiment, the solvent is butyl acetate.
In one embodiment, the hardening and wear-resisting agent is one or more of polyethylene wax, polytetrafluoroethylene wax and amide wax.
In addition, the invention provides a preparation method of the super weather-resistant ink transfer film, which comprises the following steps:
adding acrylic resin, a solvent and a hardening and wear-resisting agent into the thermosetting fluorocarbon varnish, and stirring at a stirring speed of 6000-7000r/min until the acrylic resin is completely dissolved to obtain a colloidal mixture A;
under the condition of stirring, continuously adding n-butanol into the colloidal mixture A for dilution to obtain a mixture B with the viscosity of 15-25 s;
printing the mixture B on a support material by offset printing to obtain a transfer coating A with a thickness of 4-6 μm;
and printing a B transfer coating with the thickness of 5-11 mu m and a specific pattern on the A transfer coating by gravure printing to obtain the super weather-resistant ink transfer film.
In one embodiment, the n-butanol is added in an amount of 0.5 to 1 times the volume of the mixture A in terms of volume ratio.
In addition, the invention also provides an application of the super weather-resistant ink transfer film, and the application is to apply the super weather-resistant ink transfer film to metal surface treatment.
In one embodiment, the metal surface treatment comprises a powder coating treatment and an ultra-weatherable ink transfer film treatment.
In one embodiment, the powder coating treatment is: and (3) electrostatically spraying the powder coating on the metal surface, and then precuring for 6-12 min at the temperature of 160-190 ℃ to obtain the powder coating. The influence of dust falling on the surface of the coating in the environment on the transfer effect can be reduced by carrying out pre-curing under the process condition; and the coating becomes soft and the surface viscosity becomes high at the transfer temperature, and after the carrier material is torn off, the pattern on the transfer coating is completely attached to the surface of the powder coating, so that the transfer effect of the transfer coating is improved.
In one embodiment, the ultra weatherable ink transfer film is treated as follows: attaching the super weather-resistant ink transfer film on the powder coating, and treating the powder coating at a vacuum degree of-0.1 MPa to-0.05 MPa and a temperature of 130 ℃ to 180 ℃ for 10min to 20min to ensure that the transfer coating on the super weather-resistant ink transfer film is attached to the surface of the powder coating; then baking for 10-15 min at 200-210 ℃, taking out, cooling to below 50 ℃, tearing off the carrier material, and obtaining the product with good weather resistance.
The super weather-resistant ink transfer film is applied to metal surface treatment, and the powder coating and the process conditions in the invention are combined, so that the metal surface is remarkably protected and beautiful, and the solvent resistance, the corrosion resistance and the scratch resistance of a metal product are further improved.
In one embodiment, the raw materials of the powder coating in the powder coating treatment comprise the following components in percentage by mass: 45.0-60% of polyester resin, 3.8-5.5% of triglycidyl isocyanurate, 1-15% of quartz powder, 0-20% of barium sulfate, 0-22.0% of titanium dioxide, 0-5% of pigment, 3-5% of first auxiliary agent and 0.5-1% of second auxiliary agent.
In one embodiment, the polyester resin is a carboxyl-terminated polyester resin having an acid value of 28 to 38 mgKOH/g.
In one embodiment, the barium sulfate has a median particle size of 1.5 to 8.5 μm.
In one embodiment, the titanium dioxide is rutile titanium dioxide having a Mohs hardness of 6 to 7.
In one embodiment, the quartz powder has a Mohs hardness of 7-8 and a median particle size of 5-8 μm.
In one embodiment, the first auxiliary agent is one or more of a hardening and wear-resisting wax, a charge regulator and an antioxidant.
In one embodiment, the second aid is a PE wax flow aid with a melting range of 130 ℃ to 145 ℃. It provides better leveling for the pre-cured powder coating and facilitates the peeling of the transfer film.
In one embodiment, when the powder coating does not include barium sulfate, titanium dioxide and pigment components, the powder coating is prepared by the following steps: fully mixing polyester resin, triglycidyl isocyanurate, quartz powder, an auxiliary agent and a flow auxiliary agent, and then carrying out melt extrusion, crushing and grinding to obtain the polyester resin.
In one embodiment, when the powder coating includes the components of barium sulfate, titanium dioxide and pigment, the powder coating is prepared by the following steps: fully mixing polyester resin, triglycidyl isocyanurate, quartz powder, barium sulfate, titanium dioxide, pigment, an auxiliary agent and a flow auxiliary agent, and then carrying out melt extrusion, crushing and grinding to obtain the paint.
In one embodiment, the carrier material is a PET plastic film, the thickness of the PET plastic film is 5-20 μm, the surface tension is 40-45dgn/cm, and the tensile strength is not less than 170 MPa.
In one embodiment, the metal is an aluminum profile.
Embodiments of the present invention will be described in detail below with reference to specific examples.
Example 1
The preparation method of the super weather-resistant ink transfer film comprises the following steps:
in this embodiment, the addition amount of the mixture a is, by mass: 97.5 percent of thermosetting fluorocarbon varnish; 1.9 percent of acrylic resin; 0.5 percent of butyl acetate; 0.1 percent of polyethylene wax;
adding acrylic resin, butyl acetate and polyethylene wax into the thermosetting fluorocarbon varnish, and stirring at a stirring speed of 6000r/min until the acrylic resin is completely dissolved to obtain a colloidal mixture A;
under the condition of stirring, adding n-butanol with the volume 0.5 times that of the mixture A into the colloidal mixture A continuously for dilution to obtain a mixture B with the viscosity of 25 s;
printing the mixture B on a PET plastic film by offset printing to obtain an A transfer coating with the thickness of 4 mu m;
and printing the thermosetting fluorocarbon ink with the thickness of 11 mu m and a specific pattern on the A transfer coating by gravure printing to obtain the super weather-resistant ink transfer film.
Example 2:
in this embodiment, the addition amount of the mixture a is, by mass: 98.9 percent of thermosetting fluorocarbon varnish; 0.2% of acrylic resin; 0.8 percent of butyl acetate; 0.1% of amide wax;
adding acrylic resin, butyl acetate and amide wax into the thermosetting fluorocarbon varnish, and stirring at a stirring speed of 7000r/min until the acrylic resin is completely dissolved to obtain a colloidal mixture A;
under the condition of stirring, adding n-butanol the volume of which is 1 times of that of the mixture A into the colloidal mixture A continuously for dilution to obtain a mixture B with the viscosity of 15 s;
printing the mixture B on a PET plastic film by offset printing to obtain an A transfer coating with the thickness of 6 mu m;
and printing thermosetting fluorocarbon ink with a thickness of 10 mu m and a specific pattern on the A transfer coating by gravure printing to obtain the super weather-resistant ink transfer film.
Example 3:
in this embodiment, the addition amount of the mixture a is, by mass: 97.6 percent of thermosetting fluorocarbon varnish; 1% of acrylic resin; 0.9 percent of butyl acetate; 0.5 percent of polytetrafluoroethylene wax;
adding acrylic resin, butyl acetate and polytetrafluoroethylene wax into the thermosetting fluorocarbon varnish, and stirring at a stirring speed of 6500r/min until the acrylic resin is completely dissolved to obtain a colloidal mixture A;
under the condition of stirring, adding n-butanol with the volume 0.6 times that of the mixture A into the colloidal mixture A continuously for dilution to obtain a mixture B with the viscosity of 23 s;
printing the mixture B on a PET plastic film by offset printing to obtain an A transfer coating with the thickness of 5 mu m;
and printing the thermosetting fluorocarbon ink with the thickness of 11 mu m and a specific pattern on the A transfer coating by gravure printing to obtain the super weather-resistant ink transfer film.
Comparative example 1:
in the comparative example, the addition amount of the mixture A is as follows according to the mass percentage: 75% of thermosetting fluorocarbon varnish; 15% of acrylic resin; 5% of butyl acetate; 5% of polytetrafluoroethylene wax;
adding acrylic resin, butyl acetate and polytetrafluoroethylene wax into the thermosetting fluorocarbon varnish, and stirring at a stirring speed of 6500r/min until the acrylic resin is completely dissolved to obtain a colloidal mixture A;
under the condition of stirring, adding n-butanol the volume of which is 5 times of that of the mixture A into the colloidal mixture A continuously for dilution to obtain a mixture B with the viscosity of 4.7 s;
printing the mixture B on a PET plastic film by offset printing to obtain an A transfer coating with the thickness of 5 mu m;
a thermosetting fluorocarbon ink having a thickness of 11 μm and a specific pattern was printed on the a transfer coating layer by gravure printing to obtain a transfer film.
Comparative example 2:
in the comparative example, the addition amount of the mixture A is as follows according to the mass percentage: 97.6 percent of thermosetting fluorocarbon varnish; 1% of acrylic resin; 0.9 percent of butyl acetate; 0.5 percent of polytetrafluoroethylene wax;
adding acrylic resin, butyl acetate and polytetrafluoroethylene wax into the thermosetting fluorocarbon varnish, and stirring at a stirring speed of 6500r/min until the acrylic resin is completely dissolved to obtain a colloidal mixture A;
under the condition of stirring, adding n-butanol with the volume 0.6 times that of the mixture A into the colloidal mixture A continuously for dilution to obtain a mixture B with the viscosity of 23 s;
the mixture B was printed on a PET plastic film by offset printing to give an A transfer coating having a thickness of 5 μm to give a transfer film.
Application example 1:
the components with the following mass percentages are fully mixed, and then are subjected to melt extrusion, crushing and grinding to obtain a powder coating, wherein 45.0% of polyester resin, 3.8% of triglycidyl isocyanurate, 15% of quartz powder, 20% of barium sulfate, 9% of titanium dioxide, 3.7% of pigment, 3% of charge regulator and 0.5% of PE wax flow additive are mixed;
spraying the prepared powder coating on the surface of the aluminum profile by using a golden horse gun, and then precuring for 12min at the temperature of 190 ℃ to obtain a powder coating;
attaching the super weather-resistant ink transfer film prepared in the example 1 on the powder coating, and treating the powder coating at 130 ℃ for 20min under the vacuum degree of-0.1 MPa to enable the transfer coating on the super weather-resistant ink transfer film to be attached to the surface of the powder coating; and then baking for 15min at 210 ℃, taking out, cooling to below 50 ℃, and tearing off the PET plastic film to obtain the aluminum profile product with remarkable solvent resistance, corrosion resistance and scratch resistance.
Application example 2:
the preparation method comprises the following steps of fully mixing the following components in percentage by mass, performing melt extrusion, crushing and grinding to obtain a powder coating, wherein the powder coating comprises 60% of polyester resin, 3.8% of triglycidyl isocyanurate, 1% of quartz powder, 16% of barium sulfate, 12.7% of titanium dioxide, 3% of pigment, 3% of hardening and wear-resisting wax and 0.5% of PE wax flow additive;
spraying the prepared powder coating on the surface of the aluminum profile by using a golden horse gun, and then precuring for 6min at the temperature of 190 ℃ to obtain a powder coating;
attaching the super weather-resistant ink transfer film prepared in the example 2 on the powder coating, and treating the powder coating at a vacuum degree of-0.05 MPa and a temperature of 180 ℃ for 10min to enable the transfer coating on the super weather-resistant ink transfer film to be attached to the surface of the powder coating; then baking for 10min at 200 ℃, taking out, cooling to below 50 ℃, and tearing off the PET plastic film to obtain the aluminum profile product with remarkable solvent resistance, corrosion resistance and scratch resistance.
Application example 3:
the preparation method comprises the following steps of fully mixing the following components in percentage by mass, performing melt extrusion, crushing and grinding to obtain a powder coating, wherein the powder coating comprises 55% of polyester resin, 5.5% of triglycidyl isocyanurate, 10% of quartz powder, 15% of barium sulfate, 7.7% of titanium dioxide, 2% of pigment, 4% of antioxidant and 0.8% of PE wax flow additive;
spraying the prepared powder coating on the surface of the aluminum profile by using a golden horse gun, and then precuring for 8min at the temperature of 190 ℃ to obtain a powder coating;
attaching the super weather-resistant ink transfer film prepared in the embodiment 3 on the powder coating, and treating the powder coating at 150 ℃ for 15min under the vacuum degree of-0.05 MPa to enable the transfer coating on the super weather-resistant ink transfer film to be attached to the surface of the powder coating; and then baking for 15min at 205 ℃, taking out, cooling to below 50 ℃, and tearing off the PET plastic film to obtain the aluminum profile product with remarkable solvent resistance, corrosion resistance and scratch resistance.
Comparative application example 1:
the components with the following mass percentages are fully mixed, and then are subjected to melt extrusion, crushing and grinding to obtain a powder coating, wherein 45.0% of polyester resin, 3.8% of triglycidyl isocyanurate, 15% of quartz powder, 20% of barium sulfate, 9% of titanium dioxide, 3.7% of pigment, 3% of charge regulator and 0.5% of PE wax flow additive are mixed;
spraying the prepared powder coating on the surface of the aluminum profile by using a golden horse gun, and then precuring for 6-12 min at the temperature of 160-190 ℃ to obtain a powder coating;
attaching the super weather-proof ink transfer film prepared in the comparative example 1 on the powder coating, and treating the powder coating at the temperature of 130-180 ℃ for 10-20 min under the vacuum degree of-0.1-0.05 MPa to ensure that the transfer coating on the super weather-proof ink transfer film is attached to the surface of the powder coating; then baking for 10-15 min at 200-210 ℃, taking out, cooling to below 50 ℃, and tearing off the PET plastic film to obtain the aluminum profile product.
Comparative application example 2:
the preparation method comprises the following steps of fully mixing the following components in percentage by mass, performing melt extrusion, crushing and grinding to obtain a powder coating, wherein the powder coating comprises 60% of polyester resin, 3.8% of triglycidyl isocyanurate, 1% of quartz powder, 16% of barium sulfate, 12.7% of titanium dioxide, 3% of pigment, 3% of a charge regulator and 0.5% of a PE wax flow assistant;
spraying the prepared powder coating on the surface of the aluminum profile by using a golden horse gun, and then precuring for 6-12 min at the temperature of 160-190 ℃ to obtain a powder coating;
attaching the super weather-proof ink transfer film prepared in the comparative example 2 on the powder coating, and treating the powder coating at the temperature of 130-180 ℃ for 10-20 min under the vacuum degree of-0.1-0.05 MPa to ensure that the transfer coating on the super weather-proof ink transfer film is attached to the surface of the powder coating; then baking for 10-15 min at 200-210 ℃, taking out, cooling to below 50 ℃, and tearing off the PET plastic film to obtain the aluminum profile product.
Comparative application example 3:
directly attaching the super weather-resistant ink transfer film prepared in the embodiment 3 on an aluminum profile, and treating the super weather-resistant ink transfer film at 150 ℃ for 15min under the vacuum degree of-0.05 MPa to enable a transfer coating on the super weather-resistant ink transfer film to be attached to the surface of the powder coating; and then baking for 15min at the temperature of 205 ℃, taking out, cooling to below 50 ℃, and tearing off the PET plastic film to obtain the aluminum profile product.
The super weatherable ink transfer films prepared in examples 1 to 3 were subjected to an aging resistance test, and the transfer films prepared in comparative examples 1 to 2 were subjected to an aging resistance test, and the test conditions and the test results are shown in table 1 below.
Table 1:
Figure BDA0002790498710000131
the data analysis in table 1 shows that the super weather-resistant ink transfer film prepared by the invention still has the light retention rate of more than 78% after 3000 hours of UVB lamp test, the chromatic aberration is 2.02-2.11, still has the light retention rate of more than 80% after 4300 hours of xenon lamp test, and the chromatic aberration is 2.01-2.04, and is relatively stable on the whole; compared with the comparative example, the transfer film prepared in the example has the advantages that the component of the transfer coating A in the comparative example 1 is changed, so that the aging resistance of the prepared transfer film is reduced; the B transfer coating is not printed in the comparative example 2, the aging resistance of the prepared transfer film is poorer than that of the transfer film prepared in the example, and the aging resistance of the transfer film is poorer than that of the transfer film prepared in the example, so that the A transfer coating and the B transfer coating in the invention have synergistic effect, the aging resistance of the whole transfer film is increased, the components in the A transfer coating have synergistic effect, and the effect of synergistically increasing the aging resistance and the weather resistance of the transfer film is achieved under the effect of optimizing the formula.
The aluminum profile products obtained in the application examples 1 to 3 and the comparative application examples 1 to 3 were subjected to an aging resistance test, and the test conditions and the test results are shown in table 2.
Table 2:
Figure BDA0002790498710000141
as can be seen from the data analysis in table 2, the aluminum profile products prepared in application examples 1 to 3 have significant aging resistance, while the aluminum profile products prepared in comparative application examples 1 to 3 all have poorer aging resistance than the aluminum profile products prepared in application examples 1 to 3. The super-weather-resistant transfer film prepared by the invention is applied to surface treatment of aluminum profiles, and is beneficial to increasing the aging resistance of the aluminum profiles.
The aluminum profile products obtained in application examples 1 to 3 and comparative application examples 1 to 3 were subjected to salt spray resistance, solvent resistance and scratch resistance tests, and the test conditions and test results are shown in table 3.
Table 3:
Figure BDA0002790498710000142
Figure BDA0002790498710000151
in table 3 above, the salt spray resistance test criteria are: GBT10125-2012 artificial atmosphere corrosion test salt spray test; the test criteria for solvent resistance are: and (4) testing standard: GBT 8013.3-2018 aluminum and aluminum alloy anodic oxide film and organic polymer film part 3: an organic polymer coating film; it can be seen from the analysis in table 3 that the application of the ultra-weather-resistant transfer film of the present invention to aluminum profiles can significantly increase the salt spray resistance and solvent resistance of aluminum profiles, and the scratch is not easy to occur, which is helpful to ensure the aesthetic appearance of the aluminum profiles.
In addition, in order to verify the effect of different curing conditions of the powder coating on the transfer effect, the curing conditions of the powder coating in application example 3 were changed, and the results obtained without changing other components and process conditions are shown in table 4 below.
Table 4:
Figure BDA0002790498710000152
Figure BDA0002790498710000161
in order to verify the curing conditions of the powder coating and the influence between the ingredients on the transfer effect, the ingredients were changed on the basis of test 2, i.e. no thermoplastic acrylic resin was added, as test 6; the composition was changed on the basis of test 3, i.e. no PE wax flow aid was added, as test 7, and the results are shown in table 5.
Table 5:
Figure BDA0002790498710000162
the following were analyzed in conjunction with tables 4 and 5: the data analysis in table 4 shows that the pre-curing of the powder coating, the temperature of the pre-curing and the time of the pre-curing, specifically 160 ℃ to 190 ℃, are controlled for 6min to 12min, which is helpful for the integrity transfer of the transfer coating and ensures the transfer quality. As can be seen from the data in Table 5, the components in the transfer coating and the components in the powder coating have a certain effect of promoting the transfer, and ensure that no pinholes appear on the surface of the transfer coating, and the carrier material is torn off to have continuity and integrity, thereby further enhancing the transfer quality of the transfer coating.
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 super weather-resistant ink transfer film is characterized by comprising a carrier material and a transfer coating layer arranged on the carrier material; the transfer coating comprises an A transfer coating and a B transfer coating arranged on the A transfer coating; the raw materials of the A transfer coating comprise the following components in percentage by mass:
96% -98.9% of thermosetting fluorocarbon varnish; 0.2 to 2 percent of acrylic resin; 0.5 to 1 percent of solvent; 0.1 to 0.5 percent of hardening and wear-resisting agent;
the B transfer coating is thermosetting fluorocarbon ink.
2. The super weather-resistant ink transfer film as claimed in claim 1, wherein the viscosity of the thermosetting fluorocarbon varnish at normal temperature is 130-140 s.
3. The weatherable ink transfer film of claim 1, wherein the viscosity of the thermosetting fluorocarbon ink at room temperature is 20-60 s.
4. The weatherable ink transfer film of claim 1, wherein the solvent is one or a mixture of two of butyl acetate and xylene.
5. The weatherable ink transfer film of claim 1, wherein the stiffening and abrasion resistant agent is a mixture of one or more of polyethylene wax, polytetrafluoroethylene wax, amide wax.
6. A method of making the weatherable ink transfer film of any one of claims 1 to 5, comprising the steps of:
adding acrylic resin, a solvent and a hardening and wear-resisting agent into the thermosetting fluorocarbon varnish, and stirring at a stirring speed of 6000-7000r/min until the acrylic resin is completely dissolved to obtain a colloidal mixture A;
under the condition of stirring, continuously adding n-butanol into the colloidal mixture A for dilution to obtain a mixture B with the viscosity of 15-25 s;
printing the mixture B on a support material by offset printing to obtain a transfer coating A with a thickness of 4-6 μm;
and printing a B transfer coating with the thickness of 5-11 mu m and a specific pattern on the A transfer coating by gravure printing to obtain the super weather-resistant ink transfer film.
7. Use of the superweatherable ink transfer film of any one of claims 1-6 for the treatment of metal surfaces.
8. The use of the weatherable ink transfer film of claim 7, wherein the metal surface treatment comprises a powder coating treatment and a weatherable ink transfer film treatment.
9. The use of the superweatherable ink transfer film of claim 8, wherein the powder coating treatment is: and (3) electrostatically spraying the powder coating on the metal surface, and then precuring for 6-12 min at the temperature of 160-190 ℃ to obtain the powder coating.
10. The use of the superweatherable ink transfer film of claim 8, wherein the superweatherable ink transfer film is treated as: attaching the super weather-resistant ink transfer film on the powder coating, and treating the powder coating at a vacuum degree of-0.1 MPa to-0.05 MPa and a temperature of 130 ℃ to 180 ℃ for 10min to 20min to ensure that the transfer coating on the super weather-resistant ink transfer film is attached to the surface of the powder coating; then baking for 10-15 min at 200-210 ℃, taking out, cooling to below 50 ℃, tearing off the carrier material, and obtaining the product with good weather resistance.
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