CN101544142A - An alumina ink-jet coating and a manufacturing method thereof - Google Patents
An alumina ink-jet coating and a manufacturing method thereof Download PDFInfo
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- CN101544142A CN101544142A CN200910039192A CN200910039192A CN101544142A CN 101544142 A CN101544142 A CN 101544142A CN 200910039192 A CN200910039192 A CN 200910039192A CN 200910039192 A CN200910039192 A CN 200910039192A CN 101544142 A CN101544142 A CN 101544142A
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Abstract
The invention relates to an alumina ink-jet coating and a manufacturing method thereof. The coating comprises the following components of 19 to 21 weight ratios of nanometer alumina powders, 75.3 to 77.3 weight ratios of water, 0.22 to 0.28 weight ratios of hydrochloric acid, 1.6 to 2.0 weight ratios of polyvinyl alcohol, 0.12 to 0.16 weight ratios of cross linker, 1.40 to 1.50 weight ratios of cationic coloring stabilizer and 0.04 to 0.08 weight ratio of surface active agent. The manufacturing method includes the following steps of adding the hydrochloric acid into the water to stir evenly, adding the alumina powders to stir until the powders are dispersed uniformly, cutting for 8 to 12 minutes, pumping into a vacuum pan to stir and cool, filtering with a filter screen which has 350 to 450 meshes, standing for 2 to 3 hours to eliminate bubbles. The invention provides a high-quality formula of an ink-jet printing coating. The formed printed coating is very high in surface flatness and the high-light property is fully shown. As for printing shade patterns, the invention can display very good layering, high vividness, image stability and clarity.
Description
Technical field
The present invention relates to a kind of alumina ink-jet coating and preparation method thereof.
Background technology
The domestic market is mainly based on swelling type printing paper now, though swelling type printing paper production cost is low, but ink absorption is poor, drying is slow, and can not waterproof, want overlay film to handle after having printed, not only the later stage operation is many, cost is high, and print quality and traditional silver salt photograph greatly differ from each other, and can only use as low-grade product.Production firm's technical merit of domestic each ink-jet printing material is very approaching at present, and its high light phase paper product substantially all is this series products.
The most high-grade high light printing paper that sell the domestic market, substantially all from the Japan and other countries import, a part is printer manufacturer " original-pack " goods.More substantial, though pasting home brands, but all be that import printing paper cuts packing, this class printing paper, adopt the RC paper the same (scribbling the PE coating RESIN COATING of waterproof on the body paper two sides),, have good water resistance so also be RC high light printing paper with traditional printing paper, even in water, soak several hrs, also can keep intact.
The high-gloss water-proof printing paper ink-jet paint roughly is divided into silicon system technically and aluminium is two big classes: silicon system general reference uses silica to do the inorganic particle of absorption ink, and aluminium system then adopts gamma-alumina.From production cost, silicon is that coating levels is few, and the chemical industry cost is low, and coating hardness is good, and very strong competitive advantage is arranged on price.But the shortcoming that coating fragility is big, color density is lower, the image weatherability is low that silicon is product to be existed, and aluminium system is owing to need to adopt special alumina powder, production cost significantly rises, but it has overcome silicon is the above shortcoming of product, can print the image of high-quality, high-weatherability, its performance be in the present ink-jet consumptive material quality of image near the product of conventional silver halide photo.
Summary of the invention
One of the technical problem to be solved in the present invention provides a kind of have high surface smoothness, high gloss, alumina ink-jet coating that the color rendition degree is good.
For solving the problems of the technologies described above, the present invention by the following technical solutions:
A kind of alumina ink-jet coating according to its composition of weight ratio is:
Alumina powder: 19～21 parts,
Water: 75.3～77.3 parts,
Hydrochloric acid: 0.22～0.28 part,
Polyvinyl alcohol: 1.6～2.0 parts,
Crosslinking agent: 0.12～0.16 part,
Cationic fixing agent: 1.40～1.50 parts,
Surfactant: 0.04～0.08 part;
Wherein, the alumina powder particle diameter is 15～35 nanometers.
Another technical problem that the present invention will solve provides a kind of manufacture method of aluminium oxide coating, this method step is: at first hydrochloric acid being added to the water stirs, add alumina powder again and be stirred to powder and be uniformly dispersed, mixture was sheared 8～12 minutes, after having sheared, the suction vacuum kettle stirs cooling 20 minutes～40 minutes again, after finishing, cooling filters with 350～450 purpose screen packs again, left standstill after the filtration 2～3 hours, and eliminated bubble, get product.
The present invention adopts the dispersant of hydrochloric acid as alumina in Nano level, and print colors has very high color saturation when making dispersion have good stable; Polyvinyl alcohol uses as adhesive, and itself has good water-solubility, is unfavorable for the coating waterproof that coating forms on paper substrate, and behind the adding crosslinking agent, cross-linking and curing reaction takes place with it polyvinyl alcohol, and the coating that the coating coating is formed has water resistance; The cationic fixing agent that adopts, also dye molecule combines, and the color density of printing color is further improved, and print image is more clear, and weather-proof better, long preservation is colour-fast; Use surfactant then can make coating apparent level and smooth, glossiness is high.
The invention provides a kind of high-quality inkjet printing formulation for coating material, the nano-alumina powder end of adopting, because particle diameter reaches nanoscale, therefore surface smoothness is high, through after the PROCESS FOR TREATMENT, the characteristic of Gao Guang is showed fully, for printing very dark-toned pattern, the also stereovision that can do well, image has very high vividness, image stability and definition.
The specific embodiment
For the ease of those skilled in the art's understanding, the present invention is further described in detail below in conjunction with specific embodiment:
Present embodiment has disclosed a kind of alumina ink-jet coating, can coat and form ink jet coatings on the paper substrate, according to weight ratio, this coating composition is: 20 parts of alumina powders, 76.3 parts in water, 0.3 part of hydrochloric acid, 1.8 parts of polyvinyl alcohol, 0.14 part of crosslinking agent, 1.45 parts of cationic fixing agents, 0.06 part in surfactant.
Wherein, described alumina powder is nano level micro powder, and particle diameter is between 15～35 nanometers.By adding the dispersant of hydrochloric acid as alumina in Nano level, print colors has very high color saturation when making dispersion have good stable; Polyvinyl alcohol (can be bought from KURARAY (Kuraray) company of Japan, its model is PVA235) use as adhesive, after adding crosslinking agent (having another name called " curing agent ", " curing agent "), cross-linking and curing reaction takes place with it in polyvinyl alcohol, and the coating that the coating coating is formed has water resistance; (can moisten into Science and Technology Ltd. from Guangzhou buys the cationic fixing agent that adopts, model is 450) Main Ingredients and Appearance is for having the quaternary ammonium salt group macromolecular compound, can combine with dye molecule, the color density of printing color is further improved, print image is more clear, weather-proof better, long preservation is colour-fast; Use surfactant (can buy) from Guangzhou Si Luoke chemistry Co., Ltd then can make coating apparent level and smooth, glossiness is high, concrete as quaternized thing surfactant, lecithin surfactant, fatty glyceride, aliphatic acid sorb smooth (sapn), polysorbate (tween) all can.
When manufacturing, according to aforementioned proportion, at first hydrochloric acid being added to the water stirs, and adds alumina powder again and be stirred to powder to be uniformly dispersed, and mixture is sheared 10 minutes again, after having sheared, the suction vacuum kettle stirs cooling 30 minutes, filtering with 400 purpose screen packs, leaves standstill after the filtration 2.5 hours after cooling is finished, eliminate bubble, promptly get the coating finished product.Promptly form after coating coating on the paper substrate and print ink jet coatings.
This coating can be coated on the materials such as RC plastic-coated paper-based, PP paper substrate, PVC and form ink jet coatings, below coats for this coating and prints sample test report on the paper substrate
The product test report
By test report as seen, by the formed coating rate of drying of coating of the present invention less than 2 seconds, rate of drying is fast, glossiness within 25.45 ± 3 scopes, whiteness between 90.5 ± 3, aberration (deceiving) is △ E (0-0.5), color density (deceiving) 2.25≤DK≤2.35, make the image that prints have very high vividness, image stability and definition, and can keep also that writing is clear after the immersion, color do not have elegantly, has favorable waterproof property.
Remove this in addition, each composition of coating also can other ratios, can be the arbitrary deal between 19～21 parts as alumina powder, as 19 parts, 21 parts etc.; As water can be arbitrary deal between 75.3～77.3 parts, as 75.3 parts, 77.3 parts etc.; Example hydrochloric acid can be the arbitrary deal between 0.22～0.28 part, as 0.22 part, 0.28 part etc.; Can be the arbitrary deal between 1.6～2.0 parts as polyvinyl alcohol, as 1.6 parts, 2.0 parts etc.; As crosslinking agent can be arbitrary deal between 0.12～0.16 part, as 0.12 part, 0.16 part etc.; Can be arbitrary deal between 1.40～1.50 parts as cationic fixing agent, as 1.40 parts, 1.50 parts etc.; Can be the arbitrary deal between 0.04～0.08 part as surfactant, as 0.04 part, 0.08 part etc.
And each parameter also was not limited to above-mentioned concrete parameter in manufacturing process, can be 8～12 minutes arbitrary time as the mixture shear time, as 8 minutes, 12 minutes etc.; The suction vacuum kettle stirred can be cool time 20～40 minutes arbitrary time, as 20 minutes, 40 minutes etc.; Filter used filtration mesh number can be 350～450 between arbitrary order number, as 350 orders, 450 orders etc.; Filter the back time of repose and can be 2～3 hours arbitrary time, as 2 hours, 3 hours etc.
Properties of product according to productions such as the endpoints thereof of the concrete value of each material component content, technological parameter such as each number range, medians all can reach designing requirement, also do not enumerate argumentation one by one at this.
The foregoing description is the preferable implementation of the present invention, and in addition, the present invention can also other implementations, need to prove, in any conspicuous replacement under the prerequisite that does not break away from inventive concept of the present invention all within protection domain of the present invention.
Claims (2)
1. an alumina ink-jet coating is characterized in that, according to its composition of weight ratio is:
Alumina powder: 19～21 parts,
Water: 75.3～77.3 parts,
Hydrochloric acid: 0.22～0.28 part,
Polyvinyl alcohol: 1.6～2.0 parts,
Crosslinking agent: 0.12～0.16 part,
Cationic fixing agent: 1.40～1.50 parts,
Surfactant: 0.04～0.08 part;
Wherein, the alumina powder particle diameter is 15～35 nanometers.
2. the manufacture method of the described alumina ink-jet coating of claim 1 is characterized in that, proportionally prepares each component, and the performing step of this method is:
At first hydrochloric acid is added to the water and stirs, add alumina powder again and be stirred to powder and be uniformly dispersed, again mixture was sheared 8～12 minutes, after having sheared, the suction vacuum kettle stirs cooling 20 minutes～40 minutes, filters with 350～450 purpose screen packs after cooling is finished again, and leaves standstill after the filtration 2～3 hours, eliminate bubble, get product.
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| CN200910039192A CN101544142A (en) | 2009-04-30 | 2009-04-30 | An alumina ink-jet coating and a manufacturing method thereof |
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| CN200910039192A CN101544142A (en) | 2009-04-30 | 2009-04-30 | An alumina ink-jet coating and a manufacturing method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105951520A (en) * | 2016-04-28 | 2016-09-21 | 华南理工大学 | Anti-counterfeiting coated ivory board and preparation method thereof |
| CN105951519A (en) * | 2016-04-28 | 2016-09-21 | 华南理工大学 | Water-induced anti-counterfeit paper and preparation method thereof |
| CN111019499A (en) * | 2019-11-02 | 2020-04-17 | 上海弘吉印刷科技有限公司 | Method for manufacturing thermal transfer printing coating material |
-
2009
- 2009-04-30 CN CN200910039192A patent/CN101544142A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105951520A (en) * | 2016-04-28 | 2016-09-21 | 华南理工大学 | Anti-counterfeiting coated ivory board and preparation method thereof |
| CN105951519A (en) * | 2016-04-28 | 2016-09-21 | 华南理工大学 | Water-induced anti-counterfeit paper and preparation method thereof |
| CN105951520B (en) * | 2016-04-28 | 2018-04-13 | 华南理工大学 | A kind of anti-counterfeiting coating white card paper and preparation method thereof |
| CN105951519B (en) * | 2016-04-28 | 2018-05-25 | 华南理工大学 | A kind of water induction cheque paper and preparation method thereof |
| CN111019499A (en) * | 2019-11-02 | 2020-04-17 | 上海弘吉印刷科技有限公司 | Method for manufacturing thermal transfer printing coating material |
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Open date: 20090930 |