CN105038388A - Easily-dispersible aluminum pigment used for ink and preparation method thereof - Google Patents
Easily-dispersible aluminum pigment used for ink and preparation method thereof Download PDFInfo
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- CN105038388A CN105038388A CN201510402074.2A CN201510402074A CN105038388A CN 105038388 A CN105038388 A CN 105038388A CN 201510402074 A CN201510402074 A CN 201510402074A CN 105038388 A CN105038388 A CN 105038388A
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Abstract
The invention discloses an easily-dispersible aluminum pigment used for ink. The pigment comprises the following raw materials by weight: 80 to 90% of modified aluminum powder, 8 to 18% of aldehyde ketone resin, 1 to 2% of a wetting dispersant and 1 to 2% of an antioxidant. The invention also discloses a preparation method for the easily-dispersible aluminum pigment used for the ink. The easily-dispersible aluminum pigment used for the ink and the preparation method thereof provided by the invention have the following advantages: the preparation method is simple; the raw materials are easily available; and the obtained easily-dispersible aluminum pigment used for the ink has good dispersing property, is free of influence on adhesive force of the ink and is pollution-free, non-toxic and environment-friendly.
Description
Technical field
The present invention relates to aluminium pigment technology field, particularly relating to a kind of ink with easily disperseing aluminium pigment and preparation method thereof.
Background technology
Aluminium pigment is also called aluminium powder pigment, refer to the metallic aluminium powder or aluminum paste with flakey particle structure and bright metalluster and other pigment characteristicss, it is an important kind in metallic pigment, is mainly used in the production of painting, printing the product such as paint, paint, plastic material.
Along with people improve constantly the requirement of quality of life and survival and development environment, the cry of packaging market " environmentally friendly packing material " is more and more higher, namely improves environmental-protecting performance, selects the nuisanceless wrapping material of energy-conservation, low consumption, nontoxic, pollution-free, easy degraded." environmentally friendly packing material " is the development trend of following package printing material, day by day be subject to people's attention, and printing-ink pollutes one of comparatively serious raw material in wrapping material, " environmentally friendly packing material " appeals environment-friendlyink ink product, to meet the packing instructions of expensive goods.
As the aluminium pigment of one of the main raw material(s) of metal ink, certain corresponding requirements also wants environmental protection.The aluminium pigment that current Printing ink producing producer uses has two classes: a class is solvent-borne type, and a class is dry powder.Solvent-borne type aluminium pigment, No. 200 containing 30-40%, No. 150, D40, D60 or D80 solvent, its shortcoming is as follows: 1, solvent boiling point is high, not volatile at ink system, and have dissolvent residual after making coating, VOC easily exceeds standard; 2, solvent polarity is weak, affects the sticking power of ink to ground.And the shortcoming of dry powder aluminium pigment is: during construction, dust is large; Difficult dispersion in ink system.
Therefore, develop a kind of easy dispersion, without the ink aluminium pigment of dust, asepsis environment-protecting for raising food safety standard and technical renovation is of great practical significance and economic benefit.
Summary of the invention
Based on the technical problem that background technology exists, the present invention proposes a kind of ink with easily disperseing aluminium pigment and preparation method thereof, preparation method is simple, raw material is easy to get, and gained ink, with easily dispersion aluminium pigment-dispersing is good, does not affect ink adhesion, and pollution-free, asepsis environment-protecting.
A kind of ink that the present invention proposes is with easily disperseing aluminium pigment, and its raw materials by weight comprises: modified aluminium powder 80-90%, aldehyde ketone resin 8-18%, wetting dispersing agent 1-2%, oxidation inhibitor 1-2%.
In embodiment, the weight percent of modified aluminium powder can be 80%, 81%, 82%, 83%, 84%, 85%, 86%, 87%, 88%, 89%, 90%, the weight percent of aldehyde ketone resin can be 8%, 9%, 10%, 11%, 12%, 13%, 14%, 15%, 16%, 17%, 18%, the weight percent of wetting dispersing agent can be 1%, 1.1%, 1.2%, 1.3%, 1.4%, 1.5%, 1.6%, 1.7%, 1.8%, 1.9%, 2%, the weight percent of oxidation inhibitor can be 1%, 1.1%, 1.2%, 1.3%, 1.4%, 1.5%, 1.6%, 1.7%, 1.8%, 1.9%, 2%.
Preferably, the preparation method of modified aluminium powder is: 800-900 object ball aluminum powder and D80 are placed in ball mill, after ball milling 6-10h, and suction filtration, drying obtains the first material; Add in dehydrated alcohol after stirring at low speed 2-3h by the first material, the speed of stirring at low speed is 300-500rpm, ageing 20-22h, and then drying obtains the second material; With the weight of the second material for benchmark, in the second material, add 2-3wt% polydimethylsiloxane, after 3-4wt% vinyltriethoxysilane mixes, be warming up to 40-50 DEG C, after insulation 3-5h, washing, drying obtains modified aluminium powder.
Preferably, in the preparation method of modified aluminium powder, the ratio of grinding media to material of ball mill is 8-10:1.
Preferably, the molecular weight of aldehyde ketone resin is 350-1500.
Preferably, wetting dispersing agent is esters of acrylic acid dispersion agent, as BYK-2000, BYK-2001, BYK-2009.
Preferably, oxidation inhibitor is one or more compositions in pyrocatechol, Resorcinol, BHT, tertiarybutylhydroquinone.
The above-mentioned ink that the present invention also the proposes preparation method easily disperseing aluminium pigment, comprises the steps:
S1, modified aluminium powder is placed in organic solvent cleaning after, press dry, obtain the filter cake that solid content is 80-85%;
S2, filter cake to be placed in kneader, then in kneader, add aldehyde ketone resin, wetting dispersing agent, oxidation inhibitor stirs 30-60min, make it to mix to obtain mixture;
S3, mixture is placed in vacuum drying oven, is heated to 80-100 DEG C and carries out vacuum drying, make organic solvent evaporate into≤1wt%, to obtain final product.
Cleaning and press dry step in S1 can be repeatedly.
Preferably, in S1, organic solvent is the organic solvent of boiling point < 127 DEG C.
Preferably, organic solvent is the one in vinyl acetic monomer, n-propyl acetate, Iso Butyl Acetate, N-BUTYL ACETATE, ethanol, n-propyl alcohol, Virahol.
Preferably, the weight ratio of modified aluminium powder and organic solvent is 1:1.2-1.8.
Preferably, also comprise S4, after being dried by S3, material is placed in the strip that extrusion device extrusion molding makes it to become regular shape.
After the present invention's modified aluminium powder used adopts and to be added by aluminium powder and carry out ball milling in D80, then stirring, ageing in dehydrated alcohol is added, aluminium powder surface is wrapped by, thus make the second material surface attachment hydroxyl, add polydimethylsiloxane, vinyltriethoxysilane again as coupling agent, strengthen consistency and the dispersiveness of aluminium powder and aldehyde ketone resin further; Modified aluminium powder and aldehyde ketone resin with the use of, further increase dispersiveness of the present invention, and aldehyde ketone resin is not only easy to dispersion and also can be used as filmogen in ink system, improves sticking power, also can not produce dust pollution; Wetting dispersing agent adds in modified aluminium powder, aldehyde ketone resin; further enhance the dispersiveness of the present invention in ink; and oxidation inhibitor adopts pyrocatechol, Resorcinol, 2; one or more in 6-di-tert-butyl methyl phenol, tertiarybutylhydroquinone; substantially increase antioxidant property of the present invention, thus aluminium powder can be protected to occur returning the black phenomenon of thick hair.In sum, preparation method of the present invention is simple, and raw material is easy to get, and gained ink, with easily dispersion aluminium pigment-dispersing is good, does not affect ink adhesion, and pollution-free, asepsis environment-protecting.
Embodiment
As shown in Figure 1, Fig. 1 is a kind of ink preparation method easily disperseing aluminium pigment that the present invention proposes.
With reference to Fig. 1, a kind of ink that the present invention proposes preparation method easily disperseing aluminium pigment, comprises the steps:
S1, modified aluminium powder is placed in organic solvent cleaning after, press dry, obtain the filter cake that solid content is 80-85%;
S2, filter cake to be placed in kneader, then in kneader, add aldehyde ketone resin, wetting dispersing agent, oxidation inhibitor stirs 30-60min, make it to mix to obtain mixture;
S3, mixture is placed in vacuum drying oven, is heated to 80-100 DEG C and carries out vacuum drying, make organic solvent evaporate into≤1wt%, to obtain final product.
Below, by specific embodiment, technical scheme of the present invention is described in detail.
Embodiment 1
A kind of ink that the present invention proposes is with easily disperseing aluminium pigment, and its raw materials by weight comprises:
Wherein, the preparation method of modified aluminium powder is: 800 object ball aluminum powder and D80 are placed in ball mill, and ratio of grinding media to material is 10:1, after ball milling 6h, and suction filtration, drying obtains the first material; Add in dehydrated alcohol after stirring at low speed 3h by the first material, the speed of stirring at low speed is 500rpm, ageing 22h, and then drying obtains the second material; With the weight of the second material for benchmark, in the second material, add 2wt% polydimethylsiloxane, after 4wt% vinyltriethoxysilane mixes, be warming up to 40 DEG C, after insulation 5h, washing, drying obtains modified aluminium powder.
The above-mentioned ink that the present invention the proposes preparation method easily disperseing aluminium pigment, comprises the steps:
S1,1 part of modified aluminium powder is placed in the cleaning of 1.2 parts of vinyl acetic monomers by weight after, press dry, obtain the filter cake that solid content is 82%;
S2, filter cake to be placed in kneader, then in kneader, add aldehyde ketone resin, wetting dispersing agent, oxidation inhibitor stirs 50min, make it to mix to obtain mixture;
S3, mixture is placed in vacuum drying oven, is heated to 85 DEG C and carries out vacuum drying, make organic solvent evaporate into≤1wt%, to obtain final product.
Embodiment 2
A kind of ink that the present invention proposes is with easily disperseing aluminium pigment, and its raw materials by weight comprises:
Wherein, the preparation method of modified aluminium powder is: 900 object ball aluminum powder and D80 are placed in ball mill, and ratio of grinding media to material is 8:1, after ball milling 10h, and suction filtration, drying obtains the first material; Add in dehydrated alcohol after stirring at low speed 2h by the first material, the speed of stirring at low speed is 300rpm, ageing 20h, and then drying obtains the second material; With the weight of the second material for benchmark, in the second material, add 3wt% polydimethylsiloxane, after 3wt% vinyltriethoxysilane mixes, be warming up to 50 DEG C, after insulation 3h, washing, drying obtains modified aluminium powder.
Oxidation inhibitor is the composition of pyrocatechol, Resorcinol.
The above-mentioned ink that the present invention the proposes preparation method easily disperseing aluminium pigment, comprises the steps:
S1,1 part of modified aluminium powder is placed in the cleaning of 1.8 portions of n-propyl acetates by weight after, press dry, obtain the filter cake that solid content is 83%;
S2, filter cake to be placed in kneader, then in kneader, add aldehyde ketone resin, wetting dispersing agent, oxidation inhibitor stirs 40min, make it to mix to obtain mixture;
S3, mixture is placed in vacuum drying oven, is heated to 95 DEG C and carries out vacuum drying, make organic solvent evaporate into≤1wt%, to obtain final product.
Embodiment 3
A kind of ink that the present invention proposes is with easily disperseing aluminium pigment, and its raw materials by weight comprises:
Wherein, the preparation method of modified aluminium powder is: 880 object ball aluminum powder and D80 are placed in ball mill, and ratio of grinding media to material is 8.3:1, after ball milling 9h, and suction filtration, drying obtains the first material; Add in dehydrated alcohol after stirring at low speed 2.4h by the first material, the speed of stirring at low speed is 350rpm, ageing 21h, and then drying obtains the second material; With the weight of the second material for benchmark, in the second material, add 2.6wt% polydimethylsiloxane, after 3.2wt% vinyltriethoxysilane mixes, be warming up to 48 DEG C, after insulation 3.5h, washing, drying obtains modified aluminium powder.
Oxidation inhibitor is the composition of pyrocatechol and tertiarybutylhydroquinone.
The above-mentioned ink that the present invention the proposes preparation method easily disperseing aluminium pigment, comprises the steps:
S1,1 part of modified aluminium powder is placed in the cleaning of 1.4 parts of N-BUTYL ACETATEs by weight after, press dry, obtain the filter cake that solid content is 80%;
S2, filter cake to be placed in kneader, then in kneader, add aldehyde ketone resin, wetting dispersing agent, oxidation inhibitor stirs 60min, make it to mix to obtain mixture;
S3, mixture is placed in vacuum drying oven, is heated to 80 DEG C and carries out vacuum drying, make organic solvent evaporate into≤1wt%, to obtain final product.
Embodiment 4
A kind of ink that the present invention proposes is with easily disperseing aluminium pigment, and its raw materials by weight comprises:
Wherein, the preparation method of modified aluminium powder is: 820 object ball aluminum powder and D80 are placed in ball mill, and ratio of grinding media to material is 9.7:1, after ball milling 7h, and suction filtration, drying obtains the first material; Add in dehydrated alcohol after stirring at low speed 2.6h by the first material, the speed of stirring at low speed is 450rpm, ageing 21.6h, and then drying obtains the second material; With the weight of the second material for benchmark, in the second material, add 2.4wt% polydimethylsiloxane, after 3.8wt% vinyltriethoxysilane mixes, be warming up to 44 DEG C, after insulation 4.5h, washing, drying obtains modified aluminium powder.
The above-mentioned ink that the present invention the proposes preparation method easily disperseing aluminium pigment, comprises the steps:
S1,1 part of modified aluminium powder is placed in the cleaning of 1.7 parts of n-propyl alcohols by weight after, press dry, obtain the filter cake that solid content is 85%;
S2, filter cake to be placed in kneader, then in kneader, add aldehyde ketone resin, wetting dispersing agent, oxidation inhibitor stirs 30min, make it to mix to obtain mixture;
S3, mixture is placed in vacuum drying oven, is heated to 100 DEG C and carries out vacuum drying, make organic solvent evaporate into≤1wt%, to obtain final product.
Embodiment 5
A kind of ink that the present invention proposes is with easily disperseing aluminium pigment, and its raw materials by weight comprises:
Wherein, the preparation method of modified aluminium powder is: 850 object ball aluminum powder and D80 are placed in ball mill, and ratio of grinding media to material is 9:1, after ball milling 8h, and suction filtration, drying obtains the first material; Add in dehydrated alcohol after stirring at low speed 2.5h by the first material, the speed of stirring at low speed is 400rpm, ageing 21.3h, and then drying obtains the second material; With the weight of the second material for benchmark, in the second material, add 2.5wt% polydimethylsiloxane, after 3.5wt% vinyltriethoxysilane mixes, be warming up to 45 DEG C, after insulation 4h, washing, drying obtains modified aluminium powder.
Oxidation inhibitor is the composition of pyrocatechol, BHT and tertiarybutylhydroquinone.
The above-mentioned ink that the present invention the proposes preparation method easily disperseing aluminium pigment, comprises the steps:
S1,1 part of modified aluminium powder is placed in the cleaning of 1.5 portions of Iso Butyl Acetates by weight after, press dry, obtain the filter cake that solid content is 82.5%;
S2, filter cake to be placed in kneader, then in kneader, add aldehyde ketone resin, wetting dispersing agent, oxidation inhibitor stirs 45min, make it to mix to obtain mixture;
S3, mixture is placed in vacuum drying oven, is heated to 90 DEG C and carries out vacuum drying, make organic solvent evaporate into≤1wt%;
S4, after being dried by S3, material is placed in the strip that extrusion device extrusion molding makes it to become regular shape, to obtain final product.
The above; be only the present invention's preferably embodiment; but protection scope of the present invention is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; be equal to according to technical scheme of the present invention and inventive concept thereof and replace or change, all should be encompassed within protection scope of the present invention.
Accompanying drawing explanation
Fig. 1 is a kind of ink preparation method easily disperseing aluminium pigment that the present invention proposes.
Claims (11)
1. ink is with easily disperseing an aluminium pigment, and it is characterized in that, its raw materials by weight comprises: modified aluminium powder 80-90%, aldehyde ketone resin 8-18%, wetting dispersing agent 1-2%, oxidation inhibitor 1-2%.
2. ink is with easily disperseing aluminium pigment according to claim 1, and it is characterized in that, the preparation method of modified aluminium powder is: 800-900 object ball aluminum powder and D80 are placed in ball mill, after ball milling 6-10h, and suction filtration, drying obtains the first material; Add in dehydrated alcohol after stirring at low speed 2-3h by the first material, the speed of stirring at low speed is 300-500rpm, ageing 20-22h, and then drying obtains the second material; With the weight of the second material for benchmark, in the second material, add 2-3wt% polydimethylsiloxane, after 3-4wt% vinyltriethoxysilane mixes, be warming up to 40-50 DEG C, after insulation 3-5h, washing, drying obtains modified aluminium powder.
3. according to claim 1 or 2, ink is with easily disperseing aluminium pigment, and it is characterized in that, in the preparation method of modified aluminium powder, the ratio of grinding media to material of ball mill is 8-10:1.
4. according to any one of claim 1-3, ink is with easily disperseing aluminium pigment, and it is characterized in that, the molecular weight of aldehyde ketone resin is 350-1500.
5. according to any one of claim 1-4, ink is with easily disperseing aluminium pigment, and it is characterized in that, wetting dispersing agent is esters of acrylic acid dispersion agent.
6. according to any one of claim 1-5, ink is with easily disperseing aluminium pigment, and it is characterized in that, oxidation inhibitor is one or more compositions in pyrocatechol, Resorcinol, BHT, tertiarybutylhydroquinone.
7. the ink preparation method easily disperseing aluminium pigment as described in claim 1-5, is characterized in that, comprise the steps:
S1, modified aluminium powder is placed in organic solvent cleaning after, press dry, obtain the filter cake that solid content is 80-85%;
S2, filter cake to be placed in kneader, then in kneader, add aldehyde ketone resin, wetting dispersing agent, oxidation inhibitor stirs 30-60min, make it to mix to obtain mixture;
S3, mixture is placed in vacuum drying oven, is heated to 80-100 DEG C and carries out vacuum drying, make organic solvent evaporate into content≤1wt%, to obtain final product.
8. ink use easily disperses the preparation method of aluminium pigment according to claim 7, and it is characterized in that, in S1, organic solvent is the organic solvent of boiling point < 127 DEG C.
9. the ink preparation method easily disperseing aluminium pigment according to claim 7 or 8, it is characterized in that, organic solvent is one or more compositions in vinyl acetic monomer, n-propyl acetate, Iso Butyl Acetate, N-BUTYL ACETATE, ethanol, n-propyl alcohol, Virahol.
10. the ink preparation method easily disperseing aluminium pigment according to any one of claim 7-9, it is characterized in that, the weight ratio of modified aluminium powder and organic solvent is 1:1.2-1.8.
11. according to any one of claim 7-10 the ink preparation method of easy dispersion aluminium pigment, it is characterized in that, also comprise S4, after being dried by S3, material is placed in the strip that extrusion device extrusion molding makes it to become regular shape.
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| CN105566726A (en) * | 2016-02-02 | 2016-05-11 | 合肥旭阳铝颜料有限公司 | Strip aluminum pigment and preparation method thereof |
| CN108676419A (en) * | 2018-05-28 | 2018-10-19 | 安徽诚易金属新材料有限公司 | A kind of ink strip aluminium pigment and preparation method thereof |
| CN109694593A (en) * | 2018-11-08 | 2019-04-30 | 丹阳市美尔鑫化工有限公司 | A kind of environmental type aluminum paste |
| CN112409842A (en) * | 2020-12-08 | 2021-02-26 | 清远市绚淳环保新材料有限公司 | Self-dispersed aluminum pigment particles for printing ink and preparation method thereof |
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Application publication date: 20151111 |