CN103275561B - Environmentally-friendly water-based nanometer color paste and preparation method thereof - Google Patents
Environmentally-friendly water-based nanometer color paste and preparation method thereof Download PDFInfo
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Abstract
The invention provides environmentally-friendly water-based nanometer color paste of which the average grain diameter is smaller than 100nm and reaches the real nano-scale. Meanwhile, according to the environmentally-friendly water-based nanometer color paste, the proportion of water-based pigments is increased, the color brightness of inkjet by the environmentally-friendly water-based nanometer color paste is improved, and the cost can be saved. The environmentally-friendly water-based nanometer color paste is high in stability and long in storage life. The invention further provides a preparation method of the environmentally-friendly waste-based nanometer color paste. The environmentally-friendly water-based nanometer color paste is prepared by adopting two steps, namely rough grinding and fine grinding.
Description
Technical field
The present invention relates to printing consumables field, refer to a kind of environment-friendly water-based nano color paste especially, the invention still further relates to a kind of preparation method of environment-friendly water-based nano color paste.
Background technology
Spray ink Printing is a kind of contactless printing technique, pattern leans on the microscopic ink droplets of different colours to be directly mixed to form at device surface, therefore, the formation of ink droplet, proterties and the quality of size on ink-jet printed pattern have very important impact, and at present, along with the droplet jet volume of Commercial print ink gun may diminish to 1pL, this has higher requirement to the research and development of ink-jet mill base and production, if the particle of ink-jet mill base is too large, just easily block shower nozzle, at present, market also there is the product of some nano color paste, the online patent also having some nano color paste, if publication number is the patent of invention of CN101629038A, in " a kind of production method of the water nano mill base for digital ink-jet and the container of band ultrasonic generator ", propose the nano color paste of a kind of material particular diameter fineness at 150-250nm, publication number is the patent of invention of CN101760088A, in " color paste for nanometer modified environmentally-friendly ferric oxide machine and preparation method ", propose a kind of size distribution and reach D99[or d(0.99)] be less than the mill base of 1um, publication number is the patent of invention of CN101747687A, in " sub-nano golden yellow water-based color paste for hydrophilic coating and preparation method thereof ", propose the mill base that a kind of D99 is less than 1.2um, in other similar patents, the particle diameter that mill base can reach also is in equivalents substantially, from above-mentioned patent, we can find out, it is other that the particle diameter reality of these " nano color paste " or " sub-nano color paste " is all in a Subnano-class, and the nano color paste of really.
On the other hand, well-known, along with the reduction gradually of object particle diameter, the ratio of its surface-area and volume is larger, adsorptive power is stronger, is therefore also more prone to the phenomenon occurring reuniting, this phenomenon, govern further developing of nano color paste technology on the one hand, be difficult to really accomplish Nano grade, on the other hand, even if accomplish Nano grade, also sharply shorten the preservation period of nano color paste due to agglomeration, stability is very poor, therefore, market is starved of a kind of real nano color paste, and this nano color paste has good stability simultaneously.
On the other hand, in ink-jet mill base, ratio shared by pigment has very important impact for the lightness of the pattern color of ink-jet mill base air brushing, in ink-jet mill base, the ratio of pigment is higher, pattern color is brighter, otherwise, then color is dim, if want sharpening color, then need to strengthen ink ejection amount, but be equivalent to the cost of the air brushing increased like this, therefore, improve the ratio that pigment is shared in mill base, the cost of air brushing can be saved, but, the ratio of pigment can not unconfinedly rise, in traditional ink-jet mill base, the ratio of pigment is generally lower than 15%, this is because the ratio of pigment rises, the chance that mill base is reunited can be increased, therefore, this also becomes the factor that in restriction ink-jet, pigment proportion improves.
The preparation method of traditional nano color paste adopts mechanical milling method usually, is formed by a step grinding, and such step grinds the requirement that the product obtained is difficult to reach Nano grade on the one hand, and stability is also very low on the other hand.
Summary of the invention
An object of the present invention is to propose a kind of environment-friendly water-based nano color paste, be intended to solve or alleviate the above-mentioned problem mentioned.
Another object of the present invention is the preparation method proposing a kind of environment-friendly water-based nano color paste, aims to provide a kind of real Nano grade of preparing, the environment-friendly water-based nano color paste that stability is higher.
Technical scheme of the present invention is achieved in that a kind of environment-friendly water-based nano color paste, comprises each component of following weight part:
Surplus is water.
Preferably, each component of following weight part is comprised:
Surplus is water.
Further, described dispersion agent is aqueous dispersant, because product of the present invention is a kind of water nano mill base, so described dispersion agent adopts aqueous dispersant.
Further, described barrier agent is GASIL HP340, GASIL HP340 is a kind of frequent material used as flatting silica, and it is as barrier agent, can be adsorbed in around water-based paint, stops water-based paint contact with each other and reunite.
As can be seen from the weight ratio of above-mentioned each component, in described environment-friendly water-based nano color paste, the ratio of water-based paint has accounted for 15-30%, and higher than traditional ratio (15%), therefore during air brushing, color is brighter, cost-saving; In component, dispersion agent has electrostatic shielding effect and steric hindrance, and water-based paint can be made to disperse, and prevents from reuniting, and maintains stability; Disinfectant then can kill most microorganism in described environment-friendly water-based nano color paste, ensures the use of described environment-friendly water-based nano color paste in food technology; Described barrier agent is then mainly used in process of lapping, is adsorbed in around water-based paint, prevents the contact between water-based paint and reunion further.
The preparation method of described environment-friendly water-based nano color paste, comprises the following steps:
(1) roughly grind: dispersion agent, disinfectant, barrier agent, water-based paint and adding carries out mixing, stirs and obtain mixing mill base, and the 20-30% of reserved water total amount is for subsequent use, grind described mixing mill base, be ground to mixing mill base particle diameter and be not more than 3um, then the 10-15% of water total amount carries out rinsing and stirring, and carries out coarse filtration.
(2) fine grinding: the mixing mill base after roughly grinding is proceeded dispersion grinding, to recording after mixing mill base size distribution reaches following standard:
d(0.1)0.030-0.060um
d(0.5)0.060-0.090um
d(0.9)0.090-0.190um，
Stop dispersion grinding, finally add remaining water and carry out rinsing and stirring, precision is filtered, and namely obtains described environment-friendly water-based nano color paste.
Further, in step (1), adopt dispersion cylinder or open sand mill to grind, and comprise the following steps:
1., dispersion agent, disinfectant, water are thrown in dispersion cylinder or open sand mill and stirred 15-30 minute;
2., toward dispersion cylinder or open sand mill drop into water-based paint and be fully uniformly mixed, then adding barrier agent, continuing to stir 10-20min;
3., in dispersion cylinder or open sand mill throw in zirconium pearl, then dispersion grinding 3-5 hour, be not more than 3um to mixing mill base particle diameter;
4., 10% cleaning dispersion cylinder or open sand mill of water total amount, and to release in mixing mill base dispersion cylinder or open sand mill.
5., by mixing mill base carry out coarse filtration, the aperture of filter screen of coarse filtration is 180-300 order.
Further, step 3. in, the injected volume of zirconium pearl is mix the 1-2 of mill base total amount doubly in dispersion cylinder or open sand mill, and the mixing speed of dispersion cylinder or open sand mill is 300-500 rev/min.
Further, step 3. in, the injected volume of zirconium pearl is 1.5 times that mix mill base total amount in dispersion cylinder or open sand mill, and the mixing speed of dispersion cylinder or open sand mill is 400 revs/min.
Further, in step (2), adopt horizontal sand mill to grind, and comprise the following steps:
I, the mixing mill base after corase grind added in horizontal sand mill and carries out dispersion and stir;
3-5 hour is ground in II, horizontal sand mill, control the temperature of horizontal sand mill discharge port mixing mill base at 30-40 DEG C, for the control of temperature, completed by the cooler on horizontal sand mill, control temperature also has larger impact in this scope for the size of product, if temperature is higher than 40 DEG C, then product is easily reunited, and reaches following standard to mixing mill base size distribution:
d(0.1)0.030-0.060um
d(0.5)0.060-0.090um
d(0.9)0.090-0.190um；
III, stopping grinding, add remaining water and clean horizontal sand mill, finally stir;
IV, the mixing mill base collected in Step II I is carried out precision filtration, filter core aperture is not more than 300um, namely obtains described environment-protection nano aqueous color paste.
Further, in Step II, in horizontal sand mill, the occupation rate of zirconium pearl is 85% of volume, and the particle diameter of zirconium pearl is 0.3mm, and the rotating speed of horizontal sand mill is 2000-2300 rev/min.
The preparation method of a kind of environment-friendly water-based nano color paste that the present invention proposes, creationary two steps that resolved into by a traditional step polishing are ground: corase grind and fine grinding, the process of lapping of two different stepss, extend the time of whole preparation technology, on the one hand, greatly improve the stability of product, extend the reunion time of described environment-friendly water-based nano color paste, according to the particle size range of the described environment-friendly water-based nano color paste obtained, its preservation period can reach about 1 year; And make the particle diameter of described environment-friendly water-based nano color paste reach a less rank, d(0.5) and reach 0.060-0.090um, belong to real Nano grade; On the other hand, also just can improve the ratio of pigment in described environment-friendly water-based nano color paste, thus promote the brightness of described environment-friendly water-based nano color paste, cost-saving during use.
Beneficial effect of the present invention is: what environment-friendly water-based nano color paste of the present invention adopted is water-based paint and other environmental protection components, therefore be a kind of environmentfriendly products, and, the ratio that water-based paint accounts for is the highest can reach 30%, thus improve the vividness of described environment-friendly water-based nano color paste, air brushing brightness is higher, reduces air brushing cost; In the preparation method of a kind of environment-friendly water-based nano color paste that the present invention proposes, by whole grinding technics being resolved into corase grind and fine grinding two parts, thus improve the stability of product on the one hand, extend the time that described environment-friendly water-based nano color paste is reunited, the storage life of product extends, on the other hand, described environment-friendly water-based nano color paste is made to reach a less Nano grade, d (0.1) 0.030-0.060um, d(0.5) 0.060-0.090um and d (0.9) 0.090-0.190um.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the size distribution collection of illustrative plates obtained after adopting Malvern particle size analyzer to detect in the embodiment 2 of a kind of environment-friendly water-based nano color paste of the present invention and preparation method thereof.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Embodiment 1
Environment-friendly water-based nano color paste of one that we propose according to the present invention and preparation method thereof operates, and first, prepares each component of following weight ratio, altogether 20Kg:
Surplus is water, in the present embodiment, what dispersion agent adopted is high 740 aqueous dispersants of German enlightening, and that disinfectant adopts is Tao Shi 7287, the kind of disinfectant is a lot, in product of the present invention, as long as the effect of sterilization substantially can be met, all can use the disinfectant of human non-toxic or low toxicity simultaneously, that barrier agent adopts is the GASIL HP340 of CROSFIELD company of Britain, the adoptable model of water-based paint is a lot, can be domestic, also can adopt import.
Then carry out according to following steps:
(1) roughly grind: adopt dispersion cylinder to grind,
1., by dispersion agent, disinfectant, water throw in dispersion cylinder and stir 20 minutes, and 20% of reserved water total amount is for subsequent use, certainly, this ratio also can do some adjustment a little, only otherwise impact arranges grinding technics;
2., toward dispersion cylinder drop into water-based paint and be fully uniformly mixed, then adding barrier agent, continuing to stir 15min and obtain mixing mill base;
3., in dispersion cylinder, zirconium pearl is thrown in, the injected volume of zirconium pearl is 1.5 times that mix mill base total amount in dispersion cylinder, the adjustment in certain limit can be done according to the model of dispersion cylinder and the scope that can bear, such as adjust to 1-2 doubly, but can not be too large, prevent zirconium pearl from causing large loss to dispersion cylinder, the mixing speed of dispersion cylinder is 400 revs/min, in like manner, rotating speed can carry out suitable adjustment by tolerance range also according to dispersion cylinder, setting range is generally at 300-500 rev/min, and then dispersion grinding 4 hours, detects mixing mill base particle diameter and be not more than 3um;
4., 10% cleaning dispersion cylinder of water total amount, and mixing mill base to be released from dispersion cylinder.
5., by mixing mill base carry out coarse filtration, the aperture of filter screen of coarse filtration is 250 orders.
(2) fine grinding: adopt horizontal sand mill to grind
I, the mixing mill base after corase grind is put into container, then add in horizontal sand mill through recycle pump input and carry out dispersion and stir;
II, in horizontal sand mill, the occupation rate of zirconium pearl is 85% of volume, according to the model of horizontal sand mill and certain range can be had by tolerance range, general at 80-87%, if too large, can be very large to the loss of horizontal sand mill, the particle diameter of zirconium pearl is 0.3mm, the rotating speed of horizontal sand mill is 2100 revs/min, the temperature of horizontal sand mill discharge port mixing mill base is controlled at 30-40 DEG C by cooler, grind in horizontal sand mill after 4 hours, extract mill base sample and carry out particle size analysis, in the present embodiment, we adopt Malvern particle size analyzer (model: MASTERSIZER2000) to detect, after reaching following standard to mixing mill base size distribution:
d(0.1)0.030-0.060um
d(0.5)0.060-0.090um
d(0.9)0.090-0.190um；
III, stopping grinding, add remaining water and clean horizontal sand mill, finally stir;
IV, the mixing mill base collected in Step II I is carried out precision filtration, precision is filtered this step and is mainly used for some oarse-grained impurity of mill base kind to remove, in the present embodiment, what we adopted is the filter of three layers of cotton core, wherein, the aperture of the first layer cotton core is 300um, the aperture of second layer cotton core is 200um, the aperture of third layer cotton core is 100um, for the aperture of third layer cotton core, mainly sets according to the demand of client, if customer requirement is high, then aperture is less, by above step, namely obtains environment-protection nano aqueous color paste finished product 1.
We are recording d(0.1 by Malvern particle size analyzer (model: MASTERSIZER2000)) be 0.037um, d(0.5) be 0.064, d(0.9) be 0.092.
Embodiment 2
Embodiment 2 is identical with embodiment 1 operation steps, and difference is only the weight proportion of each component, altogether 20Kg, as follows:
Surplus is water.
We are recording d(0.1 by Malvern particle size analyzer (model: MASTERSIZER2000)) be 0.035um, d(0.5) be 0.060um, d(0.9) be 0.093um.
Embodiment 3
Embodiment 3 is identical with embodiment 1 operation steps, and difference is only the weight proportion of each component, as follows:
Surplus is water.
We are recording d(0.1 by Malvern particle size analyzer (model: MASTERSIZER2000)) be 0.038um, d(0.5) be 0.066um, d(0.9) be 0.098um.
Enforcement 1, embodiment 2, embodiment 3 can be found out after being detected by Malvern particle size analyzer, and the product obtained by method disclosed by the invention and formula rate reaches Nano grade, and performance is more outstanding, and the scope of application is more extensive.
Further, after demonstrating the size of product, we are also to the detection that the stability of product is carried out, after we preserve 8 months the product obtained, detect, the particle diameter increase about 0.02um of product, but still meet the requirement used, and generally the Store time of this series products more than 3 months, can not be deposited so can not affect product.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1. an environment-friendly water-based nano color paste, is characterized in that, comprises each component of following percentage composition:
The preparation method of described environment-friendly water-based nano color paste comprises the following steps:
(1) roughly grind: dispersion agent, disinfectant, barrier agent, water-based paint and water add and carries out mixing, stirs and obtain mixing mill base, and the 20-30% of reserved water total amount is for subsequent use, grind described mixing mill base, be ground to mixing mill base particle diameter and be not more than 3 μm, then the 10-15% of water total amount carries out rinsing and stirring, and carries out coarse filtration;
(2) fine grinding: the mixing mill base after roughly grinding is proceeded dispersion grinding, to recording after mixing mill base size distribution reaches following standard:
d(0.1) 0.030-0.060μm
d(0.5) 0.060-0.090μm
d(0.9) 0.090-0.190μm，
Stop dispersion grinding, finally add remaining water and carry out rinsing and stirring, namely obtain described environment-friendly water-based nano color paste;
Wherein, in step (1), adopt dispersion cylinder or open sand mill to grind, and comprise the following steps:
1., dispersion agent, disinfectant, water are thrown in dispersion cylinder or open sand mill and stirred 15-30 minute;
2., toward dispersion cylinder or open sand mill drop into water-based paint and be fully uniformly mixed, then adding barrier agent, continuing to stir 10-20min;
3., in dispersion cylinder or open sand mill throw in zirconium pearl, then dispersion grinding 3-5 hour, be not more than 3 μm to mixing mill base particle diameter;
4., the 10-15% of water total amount cleans dispersion cylinder or open sand mill, and is released from dispersion cylinder or open sand mill by mixing mill base;
5., by mixing mill base carry out coarse filtration, the aperture of filter screen of coarse filtration is 180-300 order.
2. environment-friendly water-based nano color paste as described in the appended claim 1, is characterized in that, comprise each component of following weight part:
3. environment-friendly water-based nano color paste as described in claim 1 or 2, is characterized in that: described dispersion agent is aqueous dispersant.
4. environment-friendly water-based nano color paste as described in claim 1 or 2, is characterized in that: described barrier agent is GASIL HP 340.
5. environment-friendly water-based nano color paste as described in the appended claim 1, it is characterized in that: step 3. in, the injected volume of zirconium pearl is mix the 1-2 of mill base total amount doubly in dispersion cylinder or open sand mill, and the mixing speed of dispersion cylinder or open sand mill is 300-500 rev/min.
6. environment-friendly water-based nano color paste as claimed in claim 5, is characterized in that: step 3. in, the injected volume of zirconium pearl is 1.5 times that mix mill base total amount in dispersion cylinder or open sand mill, and the mixing speed of dispersion cylinder or open sand mill is 400 revs/min.
7. environment-friendly water-based nano color paste as described in the appended claim 1, is characterized in that: in step (2), adopts horizontal sand mill to grind, and comprises the following steps:
I, the mixing mill base after corase grind added in horizontal sand mill and carries out dispersion and stir;
Grind 3-5 hour in II, horizontal sand mill, the temperature controlling horizontal sand mill discharge port mixing mill base, at 30-40 DEG C, reaches following standard to mixing mill base size distribution:
d(0.1) 0.030-0.060μm
d(0.5) 0.060-0.090μm
d(0.9) 0.090-0.190μm；
III, stopping grinding, add remaining water and clean horizontal sand mill, finally stir;
IV, the mixing mill base collected in Step II I is carried out precision filtration, filter core aperture is not more than 300 μm, namely obtains described environment-protection nano aqueous color paste.
8. environment-friendly water-based nano color paste as recited in claim 7, it is characterized in that: in Step II, in horizontal sand mill, the occupation rate of zirconium pearl is 85% of volume, and the particle diameter of zirconium pearl is 0.3mm, and the rotating speed of horizontal sand mill is 2000-2300 rev/min.
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| CN105713237B (en) * | 2014-12-29 | 2018-10-30 | 浙江纳美新材料股份有限公司 | The preparation method of natural emulsion balloon high glaze environmental protection organic pigment mill base |
| CN105385244A (en) * | 2015-12-17 | 2016-03-09 | 苏州奥莱鑫建材有限公司 | Aqueous pigment nano color paste |
| CN106752279A (en) * | 2016-11-22 | 2017-05-31 | 赖禄波 | The method for improving coating color stability |
| CN107556826B (en) * | 2017-09-25 | 2020-12-25 | 浙江纳美新材料股份有限公司 | Preparation method of nano water-based ink-jet color paste |
| CN107793846A (en) * | 2017-11-24 | 2018-03-13 | 湖南新力华纳米科技有限公司 | A kind of water nano mill base and preparation method thereof |
| CN107699042A (en) * | 2017-11-27 | 2018-02-16 | 湖南新力华纳米科技有限公司 | A kind of water nano metallic printing ink and preparation method |
| CN112007739A (en) * | 2020-07-16 | 2020-12-01 | 珠海市瑞龙水墨有限公司 | Preparation method and application of nano particles |
| CN111808479A (en) * | 2020-07-16 | 2020-10-23 | 珠海市瑞龙水墨有限公司 | Environment-friendly water-based nano color paste and preparation method thereof |
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