CN108587426A - A kind of anodized aluminium release printable aqueous transfer coating and preparation method thereof, application - Google Patents
A kind of anodized aluminium release printable aqueous transfer coating and preparation method thereof, application Download PDFInfo
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- CN108587426A CN108587426A CN201810244431.0A CN201810244431A CN108587426A CN 108587426 A CN108587426 A CN 108587426A CN 201810244431 A CN201810244431 A CN 201810244431A CN 108587426 A CN108587426 A CN 108587426A
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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
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
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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
- C09D125/00—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 an aromatic carbocyclic ring; Coating compositions based on derivatives of such polymers
- C09D125/02—Homopolymers or copolymers of hydrocarbons
- C09D125/04—Homopolymers or copolymers of styrene
- C09D125/08—Copolymers of styrene
- C09D125/14—Copolymers of styrene with unsaturated esters
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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
- C09D143/00—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 containing boron, silicon, phosphorus, selenium, tellurium, or a metal; Coating compositions based on derivatives of such polymers
- C09D143/04—Homopolymers or copolymers of monomers containing silicon
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- 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
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
- C09D175/14—Polyurethanes having carbon-to-carbon unsaturated bonds
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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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/20—Diluents or solvents
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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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/63—Additives non-macromolecular organic
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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
- 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
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
Abstract
To overcome the problems, such as existing anodized aluminium separated type material there are ink adhesion difference and not environmentally, it is release with can print aqueous transfer coating, including following components by weight percent that the present invention provides a kind of anodized aluminiums：Aqueous 5~10 parts of transfer resin, 3~5 parts of aqueous adhesive force accelerating agent, 10~15 parts of alcohol, 0.1~1 part of dispersant, 69~81.9 parts of water；The aqueous adhesive force accelerating agent includes one or more in silicone modified polyester resin and organic metal class adhesion promoter.Meanwhile the invention also discloses the preparation method and application of above-mentioned printable aqueous transfer coating.Compared with existing oiliness release layer and water wax release layer, under the basis for ensureing release performance, the realization of trimming performance, the printable aqueous transfer coating also has surface tension high, it is good that chromatograph is coated with levelling, the excellent comprehensive performance of printing performance, print after scalding, the technique of cold wave can be achieved, can directly carry out the printing technologies such as gravure, offset printing, silk-screen.
Description
Technical field
The invention belongs to anodized aluminium technical fields, and in particular to a kind of anodized aluminium it is release with can print aqueous transfer coating and
Preparation method, application.
Background technology
Electrochemical aluminium thermoprinting technology is since last century the mid-1960s introduce China by Japan, since it is with magnificent U.S.
See, be bright in colour, it is sparkling and crystal-clear brilliant and easy to use the features such as, by the development of over half a century, become familiar to people one
Kind binding and layout material.Present electrochemical aluminium thermoprinting technology is widely used for printing packaging field, other than keeping product beauty beautiful,
It is additionally operable to promote the antifalsification and value of product packaging.It is obtained in recent years by the thermoprint membrane technology of new generation of representative of UV cold stamping films
The development of high speed, and be widely used in flexographic printing, lithographic printing etc..
Electrochemical aluminium thermoprinting film is to coat release layer (i.e. on basement membrane (PET polyester films, OPP stretched polypropene films etc.)
Abscission layer), chromatograph, by laser holographic molding, it is vacuum aluminum-coated after coating glue-line, rewinding finished product is made.Release layer is as coating
First layer, it is main effect be that chromatograph, aluminium layer, glue-line can be enable rapidly to be detached from basement membrane and be transferred after thermoprint
It is bonded to by thermoprint body surface.This just needs release layer to have good transparency, fissility, trimming, heat resistance etc., wherein
Fissility and trimming are its most basic performance requirements, directly influence the quality and thermoprint speed of thermoprint product.Thermoprint turns
Release layer is located at outermost layer after shifting, and requires it with good wearability, printing adaptability and solvent-resisting etc..
In electrochemical aluminium thermoprinting technique, first ironing and then printing technology is because it can highlight design motif and have unique stereoscopic vision
Effect, becomes the new intention of cigarette-brand design and printing industry, and is gradually promoted and applies.The application of the technology is to anodized aluminium
More stringent requirements are proposed for release layer, in addition to thermoprint picture and text to be reached are clear, outside the requirements such as not show-through floating, also specially requires
Surface tension after thermoprint and the matching with printing ink, because it directly influences the quality of printed matter.
Anodized aluminium separated type material currently on the market generally uses resin wax, cellulose acetate, organic siliconresin etc..These
Material surface tension is very low, very poor with the adhesive force of printing ink, cannot achieve the performance requirement printed after scalding.These are release simultaneously
Material almost belongs to solvent-based material, uses a large amount of ketone, esters, benzene class equal solvent.A large amount of uses of these solvents,
On the one hand in process of production, even if having good ventilation and exhaust equipment, site operation personnel, which still can suck, largely to be had
Solvent damages its health；Furthermore these solvents belong to inflammable explosive article, is constructing and existing in storage process
Huge detonation risk, it is possible to cause great fire-fighting accident；On the other hand a large amount of of these solvents are discharged into air, are bound to
It can aggravate the air pollutions such as haze；With sound, the also reinforcement limitation associated production in all parts of the country enterprise of national environmental protection laws and regulations
Discharge of the industry to exhaust gas, increases the production cost of enterprise.So present research hotspot gradually focuses on water paint, because
It, for main decentralized medium, has apparent environment-friendly advantage, no matter in use to the body of execute-in-place worker with water
Body health, or have in storage satety, production discharge etc. and be better than oiliness separated type material.
The water paint of existing anodized aluminium release layer is primarily adapted for use in the technique of thermoprint after first printing, the attachment to ink
Power is not strong, according to first ironing and then printing technique when, then be susceptible to after the ink levelability difference subsequently printed and ink setting and take off
The problem of falling.
Invention content
There are problems that ink adhesion difference and not environmentally for existing anodized aluminium separated type material, the present invention provides one kind
Anodized aluminium release printable aqueous transfer coating and preparation method thereof, application.
Technical solution is as follows used by the present invention solves above-mentioned technical problem：
On the one hand, the present invention provides a kind of anodized aluminium release printable aqueous transfer coatings, including following weight group
Point：
Aqueous 5~10 parts of transfer resin, 3~5 parts of aqueous adhesive force accelerating agent, 10~15 parts of alcohol, dispersant 0.1~1
Part, 69~81.9 parts of water；
The aqueous adhesive force accelerating agent includes in silicone modified polyester resin and organic metal class adhesion promoter
It is one or more.
Passed through using aqueous transfer resin according to the release printable aqueous transfer coating of anodized aluminium provided by the invention
Water and alcohol disperse aqueous transfer resin as solvent, can avoid the use of organic solvent, reduce in production process
Pollution to environment.The printable aqueous transfer coating does not include Wax particles, using aqueous transfer resin as material of main part,
It is matched with aqueous adhesive force accelerating agent, relative to the traditional release coating of wax and the release coating of water wax, this is aqueous turn printable
Moving coating has a high surface tension, and chromatograph is coated with that levelling window is wide, and chromatograph is coated with good leveling property, to no matter traditional drying mode
Ink or UV cured printing inks all have good matching, and it is cold to can be widely applied to traditional anodized aluminium blanching film, anodized aluminium UV
It scalds film and anodized aluminium scalds in rear die.
Optionally, the aqueous transfer resin include waterborne polyurethane resin, it is aqueous styrene-acrylic resin, aqueous acrylic modified
It is one or more in polyurethane resin and waterborne silicone-acrylate resin.
Optionally, the overall softening temperature of the aqueous transfer resin is greater than or equal to 130 DEG C, and average grain diameter is less than or waits
In 200nm.
Optionally, the molecular weight of the silicone modified polyester resin is 10000-30000, and glass transition temperature Tg is 40-
100℃。
Optionally, the organic metal class adhesion promoter is that the metal class adhesive force with amido functional group promotes
Agent.
Optionally, the dispersant is polyether modified siloxane class dispersant and one kind or more in acrylic dispersants
Kind.
Optionally, the printable aqueous transfer coating further includes the auxiliary agent of 0.05~0.5 parts by weight, and the auxiliary agent includes
It is one or more in levelling agent, antifoaming agent and antistatic agent.
Optionally, the levelling agent is in acrylic compounds levelling agent and polyether polyester azo polyether polyeste class levelling agent
It is one or more；
The antifoaming agent is modified dimethyl polysiloxane class antifoaming agent, polypropylene glycerol aether class antifoaming agent and higher alcohols
It is one or more in fatty acid ester compounded species antifoaming agent；
The antistatic agent is sodium alkyl sulfonate class antistatic agent.
On the other hand, the present invention provides the release preparation sides that can print aqueous transfer coating of anodized aluminium as described above
Method, including following operating procedure：
Aqueous transfer resin, alcohol and water are placed in reaction kettle and are blended, stirs evenly, obtains mixture A；
Under stirring, dispersant is added in mixture A, obtains mixture B；
Under stirring, aqueous adhesive force accelerating agent is added in mixture B, obtains mixture C；
Filtering obtains printable aqueous transfer coating.
Optionally, further include following operating procedure：
Under stirring, auxiliary agent is added in mixture C, the auxiliary agent includes in levelling agent, antifoaming agent and antistatic agent
It is one or more, obtain mixture D.
Optionally, mixing speed is 800~1000rpm, and filter operation uses screen for 200~300 mesh.
On the other hand, the present invention provides printable aqueous transfer coatings as described above in anodized aluminium blanching film, electrification
Application after aluminium UV cold stamping films and anodized aluminium scald in die.
Specific implementation mode
In order to make the technical problems, technical solutions and beneficial effects solved by the present invention be more clearly understood, below in conjunction with
Embodiment, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only used to explain
The present invention is not intended to limit the present invention.
One embodiment of the invention provides a kind of anodized aluminium release printable aqueous transfer coating, including following weight group
Point：
Aqueous 5~10 parts of transfer resin, 3~5 parts of aqueous adhesive force accelerating agent, 10~15 parts of alcohol, dispersant 0.1~1
Part, 69~81.9 parts of water；
The aqueous adhesive force accelerating agent includes in silicone modified polyester resin and organic metal class adhesion promoter
It is one or more.
Passed through using aqueous transfer resin according to the release printable aqueous transfer coating of anodized aluminium provided by the invention
Water and alcohol disperse aqueous transfer resin as solvent, can avoid the use of organic solvent, reduce in production process
Pollution to environment.The printable aqueous transfer coating does not include Wax particles, using aqueous transfer resin as material of main part,
It is matched with aqueous adhesive force accelerating agent, relative to traditional release coating of wax, this printable aqueous transfer coating has high table
Face tension, chromatograph be coated with levelling window it is wide, chromatograph be coated with good leveling property, to no matter traditional drying mode ink or UV solidification
Ink all has good matching, can be widely applied to traditional anodized aluminium blanching film, anodized aluminium UV cold stamping films and anodized aluminium and scalds
Afterwards in die.
In some embodiments, the alcohol uses food-grade alcohol, the water to use deionized water.
In some embodiments, the aqueous transfer resin includes waterborne polyurethane resin, aqueous styrene-acrylic resin, aqueous third
It is one or more in olefin(e) acid modified polyurethane resin and waterborne silicone-acrylate resin.
In a more preferred embodiment, the overall softening temperature of the aqueous transfer resin is greater than or equal to 130 DEG C, averagely
Grain size is less than or equal to 200nm.
By using one or more in above-mentioned aqueous transfer resin so that the anodized aluminium release layer and base being prepared
The adhesive force of film (such as PET) is small, and peel force is less than 3gf/cm, has preferable release performance.
In some embodiments, the molecular weight of the silicone modified polyester resin is 10000-30000, glass transition temperature
Tg is 40-100 DEG C.
In some embodiments, the organic metal class adhesion promoter is the metal class attachment with amido functional group
Power accelerating agent.
Using in above range silicone modified polyester resin and organic metal class adhesion promoter can effectively carry
The adhesive force of high release layer and ink, while ensureing its release performance.
In some embodiments, the dispersant is in polyether modified siloxane class dispersant and acrylic dispersants
It is one or more.
In some embodiments, the printable aqueous transfer coating further includes the auxiliary agent of 0.05~0.5 parts by weight, described
Auxiliary agent includes one or more in levelling agent, antifoaming agent and antistatic agent.
Levelling agent is to effectively improve coating levelability and a kind of coating additive of uniformity, coating can be promoted in drying
A smooth, smooth, uniform film is formed in film forming procedure.
Specifically, the levelling agent is in acrylic compounds levelling agent and polyether polyester azo polyether polyeste class levelling agent
It is one or more.
Antifoaming agent avoids occurring bubble in coating for inhibiting and eliminating the foam that coating generates in preparation process.
Specifically, the antifoaming agent is modified dimethyl polysiloxane class antifoaming agent, polypropylene glycerol aether class antifoaming agent
With it is one or more in the fatty acid ester compounded species antifoaming agent of higher alcohols.
Antistatic agent is to add among plastics or the surface coated on moulding article, and purpose is accumulated to reach minimizing electrostatic
A kind of additive.
Specifically, the antistatic agent is sodium alkyl sulfonate class antistatic agent.
Another embodiment of the present invention provides the release preparation that can print aqueous transfer coating of anodized aluminium as described above
Method, including following operating procedure：
Aqueous transfer resin, alcohol and water are placed in reaction kettle and are blended, stirs evenly, obtains mixture A；
Under stirring, dispersant is added in mixture A, obtains mixture B；
Under stirring, aqueous adhesive force accelerating agent is added in mixture B, obtains mixture C；
Filtering obtains printable aqueous transfer coating.
In some embodiments, further include following operating procedure：
Under stirring, auxiliary agent is added in mixture C, the auxiliary agent includes in levelling agent, antifoaming agent and antistatic agent
It is one or more, obtain mixture D.
The levelling agent be acrylic compounds levelling agent and one kind in polyether polyester azo polyether polyeste class levelling agent or
It is a variety of；
The antifoaming agent is modified dimethyl polysiloxane class antifoaming agent, polypropylene glycerol aether class antifoaming agent and higher alcohols
It is one or more in fatty acid ester compounded species antifoaming agent；
The antistatic agent is sodium alkyl sulfonate class antistatic agent.
In some embodiments, mixing speed is 800~1000rpm, and filter operation uses screen for 200~300 mesh.
The printable aqueous transfer coating obtained by above-mentioned preparation method is in the base for ensureing that release performance, trimming performance are realized
Under plinth, which also has surface tension high, and chromatograph coating levelling is good, and the excellent comprehensive performance of printing performance can be real
Print, the technique of cold wave, can directly carry out the printing technologies such as gravure, offset printing, silk-screen after now scalding.The present invention uses water-base resin completely
System, used volatile matter are the good alcohols of various Environmental compatibilities, are a kind of aqueous transfer coatings of real environmental protection.
Another embodiment of the present invention provides can print aqueous transfer coating in anodized aluminium blanching film, electricity as described above
Change the application in aluminium UV cold stamping films and the boiling hot rear die of anodized aluminium.
Above-mentioned electrification aluminium film has similar structures.
The electrification aluminium film includes the basement membrane stacked gradually, release layer, chromatograph, aluminium coated and glue-line, is prepared into above-mentioned
To printable aqueous transfer coating coat to basement membrane, it is dry after to form the release layer；It is used on the release layer
Chromatograph coating is coated with, and the chromatograph is obtained after dry；It is carried out on the chromatograph vacuum aluminum-coated, aluminium coated is obtained, finally in institute
It states layer surface of aluminizing and forms glue-line.
The present invention is further detailed by the following examples.
Embodiment 1
The present embodiment is for illustrating anodized aluminium disclosed by the invention release printable aqueous transfer coating and its preparation side
Method, including following operating procedure：
Step 1：It stocks up according to each component in 1 embodiment 1 of table and the raw material of content (parts by weight).
Step 2：Aqueous transfer resin, alcohol and deionized water are blended in reaction kettle, stirring at low speed 5-10min, control
Stir speed (S.S.) processed is 200-300rpm.
Step 3：Stir speed (S.S.) is improved to 800-1000rpm, dispersant is added in reaction kettle under stirring, stirs
Mix time 5min.
Step 4：It is kept stirring rate, adhesion promoter is added in reaction kettle under stirring, mixing time
5min。
Step 5：It is kept stirring rate, other auxiliary agents are added in reaction kettle under stirring, stirs 10min.
Step 6：It is filtered, is packed using 200-300 mesh filter screens, obtain the release printable aqueous transfer coating of anodized aluminium.
The aqueous transfer resin is waterborne polyurethane resin, and the aqueous adhesive force accelerating agent is organic-silicon-modified tree
The molecular weight of fat, the organic-silicon-modified resin is 10000-30000, and glass transition temperature Tg is 40-100 DEG C.The alcohol is
Food-grade alcohol, the water are deionized water, and the dispersant is that polyether modified siloxane class dispersant and acrylic compounds disperse
One or more in agent, the auxiliary agent includes levelling agent, antifoaming agent and antistatic agent, and the levelling agent is acrylic compounds levelling
One or more of agent, polyether polyester azo polyether polyeste class levelling agent, antifoaming agent are modified dimethyl polysiloxane class
One or more of antifoaming agent, polypropylene glycerol aether class antifoaming agent and the fatty acid ester compounded species antifoaming agent of higher alcohols resist
Electrostatic agent is sodium alkyl sulfonate class antistatic agent.
Embodiment 2
The present embodiment is for illustrating anodized aluminium disclosed by the invention release printable aqueous transfer coating and its preparation side
Most operating procedure in method, including such as embodiment 1, the difference is that：
It stocks up according to each component in 1 embodiment 2 of table and the raw material of content (parts by weight).
The aqueous transfer resin is aqueous styrene-acrylic resin, and the aqueous adhesive force accelerating agent is organic metal class adhesive force
Accelerating agent, the organic metal class adhesion promoter are the metal class adhesion promoter with amido functional group.
Embodiment 3
The present embodiment is for illustrating anodized aluminium disclosed by the invention release printable aqueous transfer coating and its preparation side
Most operating procedure in method, including such as embodiment 1, the difference is that：
It stocks up according to each component in 1 embodiment 3 of table and the raw material of content (parts by weight).
The aqueous transfer resin is that water soluble acrylic acid improves polyurethane resin.
Embodiment 4
The present embodiment is for illustrating anodized aluminium disclosed by the invention release printable aqueous transfer coating and its preparation side
Most operating procedure in method, including such as embodiment 1, the difference is that：
It stocks up according to each component in 1 embodiment 4 of table and the raw material of content (parts by weight).
The aqueous transfer resin is waterborne silicone-acrylate resin, and the aqueous adhesive force accelerating agent is organic metal class adhesive force
Accelerating agent, the organic metal class adhesion promoter are the metal class adhesion promoter with amido functional group.
Comparative example 1
This comparative example uses a kind of commercially available OP waxes releasing layer coating.
Performance test
What the printable aqueous transfer coating of the release use of anodized aluminium and comparative example 1 be prepared to Examples 1 to 4 provided
OP wax releasing layer coatings are tested for the property, and performance test methods are as follows：
Painting effect test method：On coating machine levelling effect is tested using 200 mesh ceramic rollers.
Chromatograph Painting effect test method：The levelling effect of 150 mesh ceramic rollers test chromatograph is used on coating machine.
Peel test force method：It is tested on adhesive tape stripping force tester PT-501C.
Cutting test method：Vacuum evaporated aluminium after coating chromatograph, is coated special glue-line, uses gilding press on release layer
It is tested.
Dissolvent residual VOCs test methods：Headspace gas chromatography instrument counts various solvent residual amounts in coated film.
Shelf-stability test method：By 150g coating samples be placed in 50 DEG C of baking ovens place 15d after observation whether there is or not precipitations
Or viscosity increases.
Gravure ink levelability test method after transfer：After in anodized aluminium release layer thermoprint to ground, PET film is thrown off,
Conventional oil ink is printed by small-sized intaglio printing press on release layer, whether there is or not apparent Levelling defects for observation.
The adhesion test method of coating and offset ink after transfer：After in anodized aluminium release layer thermoprint to ground, throw off
PET film, on release layer by after baby offset press printing UV ink fully cure after, draw hundred lattice, using 3M adhesive tape tests its
Glue pulls off the scale of ink.
Obtained test result filling table 1.
Table 1
Can be seen that anodized aluminium release layer aqueous transfer coating prepared by the present invention from the test result of table 1 has well
Coating levelability, fissility, cutting, and there is big surface tension, no matter pair with the ink of traditional drying mode or
UV all has good adaptability containing ink admittedly.The present invention uses water-base resin system, used raw material to belong to completely
Environment-friendly materials are a kind of aqueous transfer coatings of real environmental protection.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
All any modification, equivalent and improvement etc., should all be included in the protection scope of the present invention made by within refreshing and principle.
Claims (12)
1. a kind of release printable aqueous transfer coating of anodized aluminium, which is characterized in that including following components by weight percent：
Aqueous 5~10 parts of transfer resin, 3~5 parts of aqueous adhesive force accelerating agent, 10~15 parts of alcohol, 0.1~1 part of dispersant, water
69~81.9 parts；
The aqueous adhesive force accelerating agent includes one in silicone modified polyester resin and organic metal class adhesion promoter
Kind is a variety of.
2. the release printable aqueous transfer coating of anodized aluminium according to claim 1, which is characterized in that described aqueous turn
It includes waterborne polyurethane resin, aqueous styrene-acrylic resin, aqueous acrylic modified polyurethane resin and waterborne silicone-acrylate resin to move resin
In it is one or more.
3. the release printable aqueous transfer coating of anodized aluminium according to claim 1 or 2, which is characterized in that the water
Property transfer resin overall softening temperature be greater than or equal to 130 DEG C, average grain diameter be less than or equal to 200nm.
4. the release printable aqueous transfer coating of anodized aluminium according to claim 1, which is characterized in that the organosilicon
The molecular weight of modified polyester resin is 10000-30000, and glass transition temperature Tg is 40-100 DEG C.
5. the release printable aqueous transfer coating of anodized aluminium according to claim 1, which is characterized in that organic gold
Category class adhesion promoter is the metal class adhesion promoter with amido functional group.
6. the release printable aqueous transfer coating of anodized aluminium according to claim 1, which is characterized in that the dispersant
It is one or more in polyether modified siloxane class dispersant and acrylic dispersants.
7. the release printable aqueous transfer coating of anodized aluminium according to claim 1, which is characterized in that described printable
Aqueous transfer coating further includes the auxiliary agent of 0.05~0.5 parts by weight, and the auxiliary agent includes in levelling agent, antifoaming agent and antistatic agent
It is one or more.
8. the release printable aqueous transfer coating of anodized aluminium according to claim 7, which is characterized in that the levelling agent
It is one or more in acrylic compounds levelling agent and polyether polyester azo polyether polyeste class levelling agent；
The antifoaming agent is modified dimethyl polysiloxane class antifoaming agent, polypropylene glycerol aether class antifoaming agent and higher alcohols fat
It is one or more in the compound species antifoaming agent of acid esters；
The antistatic agent is sodium alkyl sulfonate class antistatic agent.
9. the release preparation method that can print aqueous transfer coating of anodized aluminium according to claim 1~8 any one,
It is characterised in that it includes following operating procedure：
Aqueous transfer resin, alcohol and water are placed in reaction kettle and are blended, stirs evenly, obtains mixture A；
Under stirring, dispersant is added in mixture A, obtains mixture B；
Under stirring, aqueous adhesive force accelerating agent is added in mixture B, obtains mixture C；
Filtering obtains printable aqueous transfer coating.
10. the release preparation method that can print aqueous transfer coating of anodized aluminium according to claim 9, feature exist
In further including following operating procedure：
Under stirring, auxiliary agent is added in mixture C, the auxiliary agent includes one in levelling agent, antifoaming agent and antistatic agent
Kind is a variety of, obtains mixture D.
11. the anodized aluminium according to claim 9 or 10 release preparation method that can print aqueous transfer coating, feature
It is, mixing speed is 800~1000rpm, and filter operation uses screen for 200~300 mesh.
12. the printable aqueous transfer coating as described in any one of claim 1~8 is in anodized aluminium blanching film, anodized aluminium
Application after UV cold stamping films and anodized aluminium scald in die.
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