CN102351979B - Acrylic resin coating liquid for alumite coloring layer and preparation method thereof - Google Patents
Acrylic resin coating liquid for alumite coloring layer and preparation method thereof Download PDFInfo
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- CN102351979B CN102351979B CN 201110202594 CN201110202594A CN102351979B CN 102351979 B CN102351979 B CN 102351979B CN 201110202594 CN201110202594 CN 201110202594 CN 201110202594 A CN201110202594 A CN 201110202594A CN 102351979 B CN102351979 B CN 102351979B
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Abstract
The invention relates to acrylic resin coating liquid for an alumite coloring layer, a preparation method of the acrylic resin coating liquid, the alumite coloring layer prepared from the acrylic resin coating liquid and alumite comprising the coloring layer. The coloring layer has good attaching force to an aluminum plating layer, in addition, the splitting performance is good, and the tightness is proper.
Description
Technical field
The present invention relates to acrylic resin coating fluid of a kind of pigmented layer for anodized aluminium and preparation method thereof, and by the pigmented layer that is used for anodized aluminium of described acrylic resin coating fluid preparation and the anodized aluminium that comprises this pigmented layer.
Background technology
Anodized aluminium is a kind of thermoprint matrix material, comprises base membrane layer, abscission layer, pigmented layer, aluminium coated and adhesive layer.Its preparation method is included in coating abscission layer and pigmented layer on base membrane layer, through the vacuum aluminum-coated aluminium coated that obtains, and then the glue coating adhesion coating.Wherein pigmented layer has the protection aluminium coated, gives color and improves the weather resistance of anodized aluminium and the effect of weathering resistance.
At present, because of the singularity of anodized aluminium, its relevant report is few.Especially use the relevant report of pigmented layer still less with anodized aluminium.And in the anodized aluminium product, the sticking power of pigmented layer, cutting property and elasticity are normally conflicting technically, are difficult to make these three technical parameters to remain on rational scope.
Summary of the invention
In order to overcome the problems referred to above, make up the blank on prior art, the purpose of this invention is to provide acrylic resin coating fluid of a kind of pigmented layer for anodized aluminium and preparation method thereof.
The present invention also aims to provide a kind of pigmented layer that is used for anodized aluminium by described acrylic resin coating fluid preparation and the anodized aluminium that comprises this pigmented layer.
Acrylic resin coating fluid of the present invention can be prepared by the method that comprises the following steps:
1) solvent adds step, wherein described solvent is joined in reactor, and is heated to 100～150 ℃;
2) the first raw material adds step, wherein the mixture with first part's initiator, first part's vinyl monomer composition, first part's acrylate monomer compositions and first part's (methyl) functional acrylic monomer composition and described solvent is added drop-wise in described reactor, and the indirect heating temperature is controlled to be 120～130 ℃;
3) the first insulation reaction step wherein makes reaction carry out at 110～130 ℃;
4) the second raw material adds step, wherein the mixture with initiator, second section vinyl monomer composition, second section acrylate monomer compositions and second section (methyl) functional acrylic monomer composition and described solvent is added drop-wise in described reactor, and the indirect heating temperature is controlled to be 110～120 ℃;
5) the second insulation reaction step wherein makes reaction carry out at 110～130 ℃,
The total amount of wherein said (methyl) acrylate monomer compositions is 10～80 weight parts, preferred 30～60 weight parts, the total amount of described (methyl) functional acrylic monomer composition is 1～50 weight part, preferred 5～20 weight parts, and the total amount of described vinyl monomer composition is 1～50 weight part, preferred 10～30 weight parts.
Ratio between the total amount of the total amount of (methyl) acrylate monomer compositions, (methyl) functional acrylic monomer composition, the total amount of vinyl monomer composition can suitably be determined as required, as long as can realize technique effect of the present invention, not be particularly limited.The preferred total amount of (methyl) acrylate monomer compositions: the total amount of (methyl) functional acrylic monomer composition: the ratio of the total amount of vinyl monomer composition is 3～10: 1: 1～6.
In aforesaid method, the weight ratio of the first raw material and the second raw material and first part's initiator and second section initiator can suitably be selected as required, is not particularly limited.the weight ratio of preferred described first part acrylate monomer compositions and described second section acrylate monomer compositions is 1: 3～3: 1, be preferably 2: 1～1: 2, more preferably 1: 1, and the weight ratio of described first part (methyl) functional acrylic monomer composition and described second section (methyl) functional acrylic monomer composition is 1: 3～3: 1, be preferably 2: 1～1: 2, more preferably 1: 1, the weight ratio of described first part vinyl monomer composition and described second section vinyl monomer composition is 1: 3～3: 1, be preferably 2: 1～1: 2, more preferably 1: 1, the weight ratio of described first part initiator and described second section initiator is 1: 3～3: 1, be preferably 2: 1～1: 2, more preferably 1: 1.
Wherein, preferred (methyl) acrylate monomer compositions is 30～60 weight parts, and (methyl) functional acrylic monomer composition is 5～20 weight parts, and the vinyl monomer composition is 10～30 weight parts.It is (methyl) acrylate monomer 5～50 weight parts of 40～80 ℃ that (methyl) acrylate monomer compositions can comprise Tg, and Tg is (methyl) acrylate monomer 5～30 weight parts of-60～20 ℃.In above-mentioned (methyl) acrylate monomer compositions, preferred Tg is that (methyl) acrylate monomer of 40～80 ℃ is 20～40 weight parts, and Tg is 10～20 weight parts for (methyl) acrylate monomer of-60～20 ℃.If wherein Tg is that (methyl) acrylate monomer content of 40～80 ℃ surpasses 50 weight parts, scumming, blind word, stain limit may appear in anodized aluminium pine too.If lower than 5 weight parts, its anodized aluminium pigmented layer may be too soft, and cutting property is poor.Surpass 30 weight parts if Tg is (methyl) acrylate monomer of-60～20 ℃, its pigmented layer may be too soft, and cutting property is poor.If lower than 5 weight parts, anodized aluminium may be too loose, scumming, blind word occur, steep the limit.Above-mentioned Tg is that (methyl) acrylate monomer of 40～80 ℃ can be at least a in tert-butyl acrylate, cyclohexyl methacrylate, β-dimethyl-aminoethylmethacrylate, n-BMA.Above-mentioned Tg can be at least a in methyl acrylate, ethyl propenoate, vinylformic acid n-propyl, n-butyl acrylate, isobutyl acrylate, 2-methyl-2-tridecyl acrylate for (methyl) acrylate monomer of-60～20 ℃.
(methyl) functional acrylic monomer composition can comprise (methyl) Acrylic Acid Monomer 0.5～30 weight part with hydroxyl and have (methyl) Acrylic Acid Monomer 0.1～30 weight part of carboxyl.In above-mentioned (methyl) functional acrylic monomer composition, (methyl) Acrylic Acid Monomer that preferably has hydroxyl is 2～15 weight parts, and (methyl) Acrylic Acid Monomer with carboxyl is 2～15 weight parts.Wherein, surpass 30 weight parts if having (methyl) Acrylic Acid Monomer of hydroxyl, anodized aluminium may be too tight, and thermoprint is incomplete.If have (methyl) Acrylic Acid Monomer of hydroxyl lower than 0.5 weight part, the fastness of pigmented layer and aluminium coated is poor and pigment-dispersing ability is poor.Wherein, surpass 30 weight parts if having (methyl) Acrylic Acid Monomer of carboxyl, anodized aluminium may be too tight, and thermoprint is incomplete.If have (methyl) Acrylic Acid Monomer of carboxyl lower than 0.1 weight part, the fastness of pigmented layer and aluminium coated is poor.Above-mentioned (methyl) Acrylic Acid Monomer with hydroxyl can be in (methyl) Hydroxyethyl acrylate, (methyl) Propylene glycol monoacrylate at least a.Above-mentioned (methyl) Acrylic Acid Monomer with carboxyl can be (methyl) vinylformic acid.
The vinyl monomer composition can comprise vinylbenzene, vinyl acetate and the N-V-Pyrol RC that is respectively 0.1～20 weight part.In the vinyl monomer composition, optimization styrene, vinyl acetate and N-V-Pyrol RC are respectively 2～15 weight parts.Wherein, if styrene content surpasses 20 weight parts, anodized aluminium may be too loose, scumming, blind word occur, steep the limit.If styrene content is less than 0.1 weight part, pigmented layer may be too soft, and cutting property is poor.If vinyl acetate content surpasses 20 weight parts, anodized aluminium may be too loose, scumming, blind word occur, steep the limit.If vinyl acetate content is less than 0.1 weight part, the fastness of pigmented layer and aluminium coated is poor.If the content of N-V-Pyrol RC surpasses 20 weight parts, anodized aluminium may be too tight, and thermoprint is incomplete.If the content of N-V-Pyrol RC is less than 0.1 weight part, the fastness of pigmented layer and aluminium coated is poor.
Can use initiator in polymerization process.This initiator can be to be selected from least a in tert-butyl peroxide benzoate, di tert butyl carbonate superoxide and benzoyl peroxide, preferably the composition of at least two kinds of initiators in tert-butyl peroxide benzoate, di tert butyl carbonate superoxide and benzoyl peroxide.The initiator total amount can be 0.5～2 weight part.More preferably described initiator comprises tert-butyl peroxide benzoate, di tert butyl carbonate superoxide and the benzoyl peroxide that is respectively 0.02～2 weight part.And then more preferably described initiator is the composition of the tert-butyl peroxide benzoate, di tert butyl carbonate superoxide and the benzoyl peroxide that are 0.1～1 weight part.
In above each step, described solvent is boiling point higher than the solvent of 100 ℃, preferred described solvent is by the mixed solvent of at least two kinds of boiling points higher than the solvent composition of 100 ℃, more preferably is selected from the mixed solvent of at least two kinds of solvents in N-BUTYL ACETATE, toluene, dimethylbenzene, propyl carbinol, ethylene glycol ether acetate.The amount of the solvent that uses in each step can suitably be selected as required.For example the solvent total amount can be 40～80 weight parts.Be solvent more than 100 ℃ by using boiling point, can be so that the molecular weight distribution of acrylic resin be narrower.In addition, in the method for the invention, use mixed solvent, add raw material and to make the purpose of reaction proceed step by step be to prevent that localized heat release from causing the phenomenon of implode to occur, and is easy to control polyreaction at twice.
Time to above each step is not particularly limited, and for example the first raw material adds step and the second raw material interpolation step can be respectively 1～3 hour, is preferably 2 hours; The first insulation reaction step can be 1～3 hour, is preferably 2 hours; The second insulation reaction step can be 1～5 hour, is preferably 3 hours.Insulation reaction finishes, and can obtain containing the reaction product of the acrylic resin of the pigmented layer for anodized aluminium of the present invention.The product that contains acrylic resin that above-mentioned reaction can be obtained directly is used as coating fluid, and need not to separate.The solid content of preferred this coating fluid is 55～70 % by weight, and viscosity is 1000～3000cps.This coating fluid is coated on the abscission layer of anodized aluminium, can obtains pigmented layer after drying.The sticking power of resulting pigmented layer and aluminium coated is good, and cutting property is good, and elasticity is suitable.
Therefore, the present invention also provides the acrylic resin coating fluid by the pigmented layer that is used for anodized aluminium of above method preparation.In addition, the present invention also provides the pigmented layer that is used for anodized aluminium that uses acrylic resin coating fluid preparation of the present invention, and the anodized aluminium that comprises described pigmented layer.
Embodiment
Understand for technical characterictic of the present invention, purpose and beneficial effect being had more clearly, now technical scheme of the present invention is carried out following detailed description, but but can not be interpreted as that following explanation is the restriction to practical range of the present invention.
Embodiment 1
The present embodiment provides acrylic resin of a kind of pigmented layer for anodized aluminium and preparation method thereof.Wherein, raw material forms as shown in table 1.In table, the unit of each component is kg, and is lower same.
Table 1
Acrylate composition: functional acrylic monomer composition: vinyl monomer composition=45: 8: 22 ≈ 6: 1: 3
The preparation method of the acrylic resin of the present embodiment provides a kind of pigmented layer for anodized aluminium is as follows:
1) N-BUTYL ACETATE 20kg and dimethylbenzene 15kg are put into reactor, heating is heated to 120 ℃.
2) with tert-butyl acrylate 15kg, n-butyl acrylate 7.5kg, hydroxyethyl methylacrylate 2.5kg, vinylformic acid 1.5kg, vinylbenzene 5kg, vinyl acetate 4kg, N-V-Pyrol RC 2kg, tert-butyl peroxide benzoate 0.25kg, di tert butyl carbonate superoxide 0.1kg, benzoyl peroxide 0.25kg, N-BUTYL ACETATE 10kg, dimethylbenzene 7.5kg stirs, and drips in 2 hours.During dropping, the externally heating temperature is controlled at 120 ℃.
3) drip to finish after, 120 ℃ of insulation reaction 2 hours.
4) after insulation reaction finishes, remaining tert-butyl acrylate 15kg, n-butyl acrylate 7.5kg, hydroxyethyl methylacrylate 2.5kg, vinylformic acid 1.5kg, vinylbenzene 5kg, vinyl acetate 4kg, N-V-Pyrol RC 2kg, tert-butyl peroxide benzoate 0.25kg, di tert butyl carbonate superoxide 0.1kg, benzoyl peroxide 0.25kg, N-BUTYL ACETATE 10kg, dimethylbenzene 7.5kg stirs, and drips in 2 hours.During dropping, the externally heating temperature is controlled at 115 ℃.
5) drip after, 115 ℃ of insulation reaction 3 hours.
Resulting acrylic resin coating fluid is water white, and wherein the weight-average molecular weight of acrylic resin is 2000, and molecular weight distribution Mn/Mw is 2.1.
Embodiment 2:
Except the raw material composition is as shown in table 2, obtain acrylic resin of the present invention according to the mode identical with embodiment 1.Resulting acrylic resin coating fluid is water white, and wherein the weight-average molecular weight of acrylic resin is 1800, and molecular weight distribution Mn/Mw is 1.8.
Table 2
Acrylate composition: functional acrylic monomer composition: vinyl monomer composition=48: 8: 16=6: 1: 2
Embodiment 3:
Except the raw material composition is as shown in table 3, obtain acrylic resin of the present invention according to the mode identical with embodiment 1.Resulting acrylic resin coating fluid is water white, and wherein the weight-average molecular weight of acrylic resin is 2400, and molecular weight distribution Mn/Mw is 2.3.
Table 3
Acrylate composition: functional acrylic monomer composition: vinyl monomer composition=50: 6: 22 ≈ 8: 1: 4
Embodiment 4
Except the raw material composition is as shown in table 4, obtain acrylic resin of the present invention according to the mode identical with embodiment 1.Resulting acrylic resin coating fluid is water white, and wherein the weight-average molecular weight of acrylic resin is 2500, and molecular weight distribution Mn/Mw is 1.9.
Table 4
Acrylate composition: functional acrylic monomer composition: vinyl monomer composition=18: 6: 30 ≈ 3: 1: 5
Embodiment 5
Except the raw material composition is as shown in table 5, obtain acrylic resin of the present invention according to the mode identical with embodiment 1.Resulting acrylic resin coating fluid is water white, and wherein the weight-average molecular weight of acrylic resin is 3200, and molecular weight distribution Mn/Mw is 2.3.
Table 5
Acrylate composition: functional acrylic monomer composition: vinyl monomer composition=40: 10: 12 ≈ 4: 1: 1.2
Comparative example 1:
Comparative example 1 illustrated in the acrylic resin coating fluid, the impact of the selection of the content of various monomers on the acrylic resin of the chromatograph that is used for anodized aluminium.Wherein, raw material forms as shown in table 6:
Table 6
Acrylate composition: functional acrylic monomer composition: vinyl monomer composition=17: 8: 22 ≈ 2.1: 1: 3
In comparative example 1, the acrylic resin coating fluid that is used for the pigmented layer of anodized aluminium prepares according to basic identical with embodiment 1 method.
Comparative example 2:
Comparative example 2 illustrated in the acrylate functional monomer composition, the impact of the selection of monomer content on the acrylic resin coating fluid of the chromatograph that is used for anodized aluminium.Wherein, raw material forms as shown in table 7:
Table 7
Acrylate composition: functional acrylic monomer composition: vinyl monomer composition=48: 36: 16 ≈ 1.3: 1: 0.44
In comparative example 2, the acrylic resin coating fluid that is used for the pigmented layer of anodized aluminium prepares according to basic identical with embodiment 2 method.
Test case
Adopt following method to by embodiment 1-5, the performance of the pigmented layer that the acrylic resin coating fluid of the pigmented layer that is used for anodized aluminium that comparative example 1-2 provides obtains is estimated.All tests are all on the PET film of parting agent processing, are coated with pigmented layer above it, through 170 ℃ of oven for drying, dry rear test.
The elasticity test of pigmented layer:
Adopt scotch tape used in everyday to be attached to the pigmented layer surface, after having pasted, press the miter angle stripping tape, with the anodized aluminium industry those of ordinary skill elasticity of the size judgement pigmented layer of stressing conditions on hand.
Sticking power test with aluminium coated:
On pigmented layer after evaporation plating aluminium, use scotch tape to be attached to the aluminium coated surface, after having pasted, peel off rapidly, stay the sticking power with aluminium coated of how much judging of look at the pet sheet face.Judgement criteria is as follows:
Good: without staying look
Poor: big area is stayed look
Generally: facet accumulates look
Cut performance test:
Adopt the pattern mold of different densities to carry out thermoprint.When thermoprint was complete, the size of pattern density judged its cutting property.Judgement criteria is as follows:
Good: the pattern thermoprint that density is larger is clear.
Poor: the pattern thermoprint that density is little is clear, and the pattern thermoprint that density is moderate is unintelligible.
Generally: the pattern thermoprint that density is moderate is clear, and the pattern thermoprint that density is larger is unintelligible.
Test result is as follows:
Table 8
By upper table 8 as can be known, the pigmented layer that obtains of the coating fluid by the embodiment of the present invention 1 to 5 can be so that elasticity, sticking power and cutting property all be in rational scope.
Claims (28)
1. the preparation method for the acrylic resin coating fluid of the pigmented layer of anodized aluminium, is characterized in that, said method comprising the steps of:
1) solvent adds step, wherein described solvent is joined in reactor, and is heated to 100～150 ℃;
2) the first raw material adds step, wherein the mixture with first part's initiator, first part's vinyl monomer composition, first part's acrylate monomer compositions and first part's (methyl) functional acrylic monomer composition and described solvent is added drop-wise in described reactor, and the indirect heating temperature is controlled to be 120～130 ℃;
3) the first insulation reaction step wherein makes reaction carry out at 110～130 ℃;
4) the second raw material adds step, wherein the mixture with second section initiator, second section vinyl monomer composition, second section acrylate monomer compositions and second section (methyl) functional acrylic monomer composition and described solvent is added drop-wise in described reactor, and the indirect heating temperature is controlled to be 110～120 ℃;
5) the second insulation reaction step wherein makes reaction carry out at 110～130 ℃,
The total amount of wherein said (methyl) acrylate monomer compositions is 10～80 weight parts, and the total amount of described (methyl) functional acrylic monomer composition is 1～50 weight part, and the total amount of described vinyl monomer composition is 1～50 weight part,
the weight ratio of described first part acrylate monomer compositions and described second section acrylate monomer compositions is that the weight ratio of 1:3～3:1 and described first part (methyl) functional acrylic monomer composition and described second section (methyl) functional acrylic monomer composition is that the weight ratio of 1:3～3:1 described first part vinyl monomer composition and described second section vinyl monomer composition is 1:3～3:1, the weight ratio of described first part initiator and described second section initiator is 1:3～3:1, the total amount of (methyl) acrylate monomer compositions: the total amount of (methyl) functional acrylic monomer composition: the ratio of the total amount of vinyl monomer composition is 3～10:1:1～6,
The Tg that described (methyl) acrylate monomer compositions comprises 5～50 weight parts is that the Tg of (methyl) acrylate monomer of 40～80 ℃ and 5～30 weight parts is (methyl) acrylate monomer of-60～20 ℃,
Described (methyl) functional acrylic monomer composition comprises (methyl) Acrylic Acid Monomer with hydroxyl of 0.5～30 weight part and (methyl) Acrylic Acid Monomer with carboxyl of 0.1～30 weight part,
Described vinyl monomer composition comprises the vinylbenzene of 0.1～20 weight part, the N-V-Pyrol RC of the vinyl acetate of 0.1～20 weight part and 0.1～20 weight part,
Described solvent is boiling point higher than the solvent of 100 ℃.
2. preparation method as claimed in claim 1, the total amount of described (methyl) acrylate monomer compositions is 30～60 weight parts.
3. preparation method as claimed in claim 1, the total amount of described (methyl) functional acrylic monomer composition is 5～20 weight parts.
4. preparation method as claimed in claim 1, the total amount of described vinyl monomer composition is 10～30 weight parts.
5. preparation method as claimed in claim 1, the weight ratio of described first part acrylate monomer compositions and described second section acrylate monomer compositions is 2:1～1:2.
6. preparation method as claimed in claim 1, the weight ratio of described first part acrylate monomer compositions and described second section acrylate monomer compositions is 1:1.
7. preparation method as claimed in claim 1, the weight ratio of described first part (methyl) functional acrylic monomer composition and described second section (methyl) functional acrylic monomer composition is 2:1～1:2.
8. preparation method as claimed in claim 1, the weight ratio of described first part (methyl) functional acrylic monomer composition and described second section (methyl) functional acrylic monomer composition is 1:1.
9. preparation method as claimed in claim 1, the weight ratio of described first part vinyl monomer composition and described second section vinyl monomer composition is 2:1～1:2.
10. preparation method as claimed in claim 1, the weight ratio of described first part vinyl monomer composition and described second section vinyl monomer composition is 1:1.
11. preparation method as claimed in claim 1, the weight ratio of described first part initiator and described second section initiator is 2:1～1:2.
12. preparation method as claimed in claim 1, the weight ratio of described first part initiator and described second section initiator is 1:1.
13. preparation method as claimed in claim 1, the Tg that described (methyl) acrylate monomer compositions comprises 20～40 weight parts are (methyl) acrylate monomer of 40～80 ℃.
14. preparation method as claimed in claim 1, the Tg that described (methyl) acrylate monomer compositions comprises 10～20 weight parts is (methyl) acrylate monomer of-60～20 ℃.
15. preparation method as claimed in claim 1, described (methyl) functional acrylic monomer composition comprises (methyl) Acrylic Acid Monomer with hydroxyl of 2～15 weight parts.
16. preparation method as claimed in claim 1, described (methyl) functional acrylic monomer composition comprises (methyl) Acrylic Acid Monomer with carboxyl of 2～15 weight parts.
17. preparation method as claimed in claim 1, described vinyl monomer composition comprises the vinylbenzene of 2～15 weight parts.
18. preparation method as claimed in claim 1, described vinyl monomer composition comprises the vinyl acetate of 2～15 weight parts.
19. preparation method as claimed in claim 1, described vinyl monomer composition comprises the N-V-Pyrol RC of 2～15 weight parts.
20. preparation method as described in any one in claim 1-19, it is characterized in that, described Tg is that (methyl) acrylate monomer of 40～80 ℃ is to be selected from least a in tert-butyl acrylate, cyclohexyl methacrylate, β-dimethyl-aminoethylmethacrylate and n-BMA, and described Tg is to be selected from least a in methyl acrylate, ethyl propenoate, vinylformic acid n-propyl, n-butyl acrylate, isobutyl acrylate and 2-methyl-2-tridecyl acrylate for (methyl) acrylate monomer of-60～20 ℃.
21. preparation method as described in any one in claim 1-19, it is characterized in that, described (methyl) Acrylic Acid Monomer with hydroxyl is to be selected from least a in (methyl) Hydroxyethyl acrylate and (methyl) Propylene glycol monoacrylate, and described (methyl) Acrylic Acid Monomer with carboxyl is (methyl) vinylformic acid.
22. preparation method as described in any one in claim 1-19 is characterized in that, described initiator is to be selected from least a in tert-butyl peroxide benzoate, di tert butyl carbonate superoxide and benzoyl peroxide.
23. preparation method as described in any one in claim 1-19, it is characterized in that, described initiator is the composition of the benzoyl peroxide of the di tert butyl carbonate superoxide of tert-butyl peroxide benzoate, 0.02～2 weight part of 0.02～2 weight part and 0.02～2 weight part.
24. preparation method as described in any one in claim 1-19, it is characterized in that, described initiator is the composition of the benzoyl peroxide of the di tert butyl carbonate superoxide of tert-butyl peroxide benzoate, 0.1～1 weight part of 0.1～1 weight part and 0.1～1 weight part.
25. preparation method as described in any one in claim 1-19 is characterized in that described solvent is the mixed solvent by at least two kinds of solvent compositions.
26. preparation method as described in any one in claim 1-19 is characterized in that, described solvent is served as reasons and is selected from the mixed solvent of at least two kinds of solvent compositions in N-BUTYL ACETATE, toluene, dimethylbenzene, propyl carbinol, ethylene glycol ether acetate.
27. an acrylic resin coating fluid that is used for the pigmented layer of anodized aluminium, described coating fluid is by preparation method's preparation as described in any one in claim 1 to 26.
28. a pigmented layer that is used for anodized aluminium, described pigmented layer for anodized aluminium is prepared by acrylic resin coating fluid as claimed in claim 27.
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| CN104017318B (en) * | 2014-05-13 | 2017-01-04 | 佛山市南海高拓包装材料有限公司 | Information Level resin for anodized aluminium and preparation method thereof and alumite thermoprinting foil |
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| CN105694561A (en) * | 2016-03-15 | 2016-06-22 | 扬州市祥华新材料科技有限公司 | Alumite color layer coating containing acrylic monomers |
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| CN112497946B (en) * | 2020-11-26 | 2022-07-29 | 武汉华工图像技术开发有限公司 | Electrochemical aluminum foil and preparation method thereof |
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