Ceramic ink jet printing color glaze mixed type negative ion ink and preparation method thereof
Technical field
The present invention relates to a kind of technology of ceramic tile decoration, be specially a kind of ceramic ink jet printing ink, more specifically, relate to a kind of ceramic ink jet printing color glaze mixed type negative ion ink and preparation method thereof.
Background technology
Negative ion is a kind of far-infrared radiation material be highly profitable to HUMAN HEALTH, the far infrared rays optimal wavelength of suitable absorption of human body is 9.6 μm, and the radiation infrared wavelength of negative ion mineral crystal is within the scope of 2-18 μm, and radiation power emission density is 0.04w/cm
2slightly high, above data can fully confirm, the far infrared rays of negative ion mineral crystal radiation and the coordination of human body very well, all can be absorbed by human body.Generally speaking, people needs about 13,000,000,000 negative ions every day, and our bedroom, office, the environment such as public place of entertainment, can only provide about 1---and 2,000,000,000.Huge contrast between this supply and demand, often easily causes pneumonia, the respiratory disease of trachitis.
Inkjet technology is a kind of contactless digital printing technologies succeeded in developing late 1970s.It by ink by the nozzle ejection on printhead on various dielectric surface, achieve noncontact, high speed, the monochrome of low noise or the word of colour or image printing.At the beginning of 21 century, Ferro Corporation develops the oil-based ink being adapted at pottery carrying out spray ink Printing, is 00818261.2 at the corresponding number of patent application of China.The widespread use of inkjet technology at architectural pottery production field is started with this.As a kind of brand-new ceramic decoration theory, ceramic decoration colour print technology can make full use of abundant computer data, digital technique is incorporated in traditional architectural pottery product, ceramic decoration is made to closely follow era step, embody stylistic features, meet the requirement of people's personalization, ceramic decoration technology is pushed to a new stage.
Inkjet technology tool compared with the traditional decoration means of ceramic tile production has the following advantages: (1) energy-saving and emission-reduction, product has been broken away from batch production needs film-making, screen cloth, the intermediate step such as mechanical, shorten and change the line of production the cycle, significantly enhance productivity, also reduce the loss in the process of changing the line of production; (2) print procedure is completely by computer control, complicated pattern decorative can be carried out in production process, and the precision of pattern improves with repeatable, greatly can improve mechanization degree and the production efficiency of decoration process, also can complete the short run even customization of single products; (3) contactless, can print on male and fomale(M&F), make the decoration of some special-shaped products become easy, extreme enrichment decorative effect.
But ink-jet printed technique belongs to a kind of surface decoration technique, namely predetermined pattern is formed at ceramic tile surface by printing of inkjet printer, main component at present in disclosed ink set is tinting material/colorant and solvent, and makes tinting material/colorant additive such as homodisperse dispersion agent in a solvent.The printed layer that spray ink Printing is formed is how not wear-resisting, even after high temperature sintering, is easier to wearing and tearing in the printed layer of ceramic tile surface yet, and therefore need executes layer of transparent protection glaze to protect printed layer more.This make the production cost of ink-jet printed series ceramic Wall or floor tile and the production cycle all very high.Current known negative ion glaze is opaque glaze, is not suitable as the protective layer imposed in printed layer.So the spray ink Printing ceramic with negative ion effect does not also occur.
Summary of the invention
The object of the invention is to propose a kind of ceramic ink jet printing color glaze mixed type negative ion ink and preparation method thereof, when using ceramic ink jet printing color glaze mixed type negative ion ink provided by the invention to produce ceramic wall and floor bricks product, ink-jet printed rear direct high temperature burns till, without the need to after executing transparency protected glaze again after ink-jet printed again high temperature burn till, Glaze Composition in ink is meeting melting when burning till, by the negative ion powder in ink and colorant parcel, colorant presents the pattern of ink-jet printed formation, negative ion powder then can anion releasing, improve the negative ion concentration of decoration space.
For reaching this object, the present invention by the following technical solutions: a kind of ceramic ink jet printing color glaze mixed type negative ion ink, comprising various components be by mass percentage: colorant: 28% ~ 35%; Powdered frit: 10% ~ 15%; Negative ion powder: 2% ~ 5%; Magnesiumcarbonate: 1% ~ 5%; Glycol ether: 45% ~ 55%; Dispersion agent: 1 ~ 3%; Bonding agent: 0.5% ~ 2%; Tensio-active agent: 0.5% ~ 2%.
In order to can good printing quality be obtained, and the high temperature being applicable to ceramic wall and floor bricks goods burns till, preferably, in above-mentioned ceramic ink jet printing color glaze mixed type negative ion ink, the percent mass of the mineral constituent that described negative ion powder comprises is: tourmalinite: 30% ~ 45%, rare earth composite salt: 20% ~ 45%, titanium oxide: 25% ~ 35%.
Above-mentioned rare earth composite salt, is preferably lanthanide rare composite salt, and in order to avoid affecting ink color development, tourmalinite is preferably white tourmaline.
Go for high temperature to make ink to burn till, preferably, in above-mentioned a kind of ceramic ink jet printing color glaze mixed type negative ion ink, described colorant is one or more combinations in praseodymium yellow, reddish brown, orange, cobalt blue, spinel system black pigment.
After making sintering, the printed layer using ink provided by the invention to be formed has good texture, preferably, the chemical composition mass percent of the powdered frit described in above-mentioned a kind of ceramic ink jet printing color glaze mixed type negative ion ink is: silicon-dioxide: 45% ~ 50%; Aluminum oxide 18% ~ 22%, ferric oxide :≤0.2%; Titanium dioxide :≤0.3%; Calcium oxide 8% ~ 12%; Magnesium oxide 4% ~ 5%; Potassium oxide: 1% ~ 3%; Sodium oxide: 3% ~ 5%; Barium oxide: 2% ~ 4%; Zinc oxide: 1% ~ 2%; Zirconium white: 1% ~ 2%; Loss on ignition :≤1%; Water :≤0.5%.
Above-mentioned a kind of ceramic ink jet printing color glaze mixed type negative ion ink is weakly alkaline; It is minimum to the corrodibility of shower nozzle when its PH is between 7 ~ 8.
When in above-mentioned a kind of ceramic ink jet printing color glaze mixed type negative ion ink during solid content >=50%, there is particularly preferred hair color effect.
The present invention also provides a kind of preparation method of above-mentioned a kind of ceramic ink jet printing color glaze mixed type negative ion ink: it comprises the steps:
The siccative mixing of step 1) colorant, negative ion powder, powdered frit; By colorant: negative ion powder: the mass ratio of powdered frit is that 28 ~ 35:2 ~ 5:10 ~ 15 take, and then pours in quick mixer and mixes.
Step 2) comminution by gas stream; The colorant, negative ion powder and the powdered frit compound that adopt high speed jet mill to mix step 1) carry out beating powder, obtain the ultrafine powder that particle diameter reaches 10 μm ~ 50 μm.
Step 3) batching and one-level ball milling; Be in mass ratio: 40 ~ 55:1 ~ 5:45 ~ 60 take step 2) ultrafine powder, magnesiumcarbonate, the glycol ether that obtain, then pour into aluminum oxide be ball lining and ball ball mill in ball milling, Ball-milling Time 12 ~ 24 hours, obtains the mixed slurry that particle diameter is 1 ~ 10 μm.
Step 4) batching and secondary ball milling; Be mixed slurry, dispersion agent, bonding agent, the tensio-active agent that the ratio of 86 ~ 120:1 ~ 3:0.5 ~ 2:0.5 ~ 2 takes step 3) and obtains in mass ratio, pour double planetary high speed ball mill into grind, milling time 4 ~ 10 hours, obtains ink work in-process.
Step 5) constant-temperature vacuum filters; Ink work in-process step 4) obtained, in the constant temperature a mixing bowl of 80 ~ 100 DEG C, then carry out vacuumizing, vibration at high speed, use aperture≤10 μm strainer filtering, obtain ink.
Preferably, in the preparation method of above-mentioned a kind of ceramic ink jet printing color glaze mixed type negative ion ink, the colorant described in step 1) be reach that 325 order standard analysiss tail over≤0.05% through 700 ~ 850 DEG C of temperature lower calcinations, granularity, the powdery praseodymium yellow of moisture content≤0.5%, one or more combinations in reddish brown, orange, cobalt blue, spinel system black pigment.
Preferably, in the preparation method of above-mentioned a kind of ceramic ink jet printing color glaze mixed type negative ion ink, glaze described in step 1) is silicon-dioxide 45 ~ 50 for selecting chemical composition mass ratio: aluminum oxide 18 ~ 22: ferric oxide 0 ~ 0.2: titanium dioxide 0 ~ 0.3: calcium oxide 8 ~ 12: magnesium oxide 4 ~ 5: potassium oxide 1 ~ 3: sodium oxide 3 ~ 5: barium oxide 2 ~ 4: zinc oxide 1 ~ 2: the raw material of zirconium white 1 ~ 2 is through 700 ~ 850 DEG C of calcinings, calcination time 1 ~ 3 hour, obtains the grog of loss on ignition≤1%, moisture content≤0.5%.
In order to avoid introducing impurity, obtain good grinding effect, with stable drop mass, in a kind of preparation method of ceramic ink jet printing color glaze mixed type negative ion ink, the ball mill performance requriements used in step 3) is as follows: ball adopts isostatic pressing process, diameter 10 ~ 35mm; The Chemical Composition mass percent of ball lining, ball is: aluminium sesquioxide >=95%, silicon-dioxide 2% ~ 5%, ferric oxide≤0.1%, volume density >=3.7 gram/cc of ball lining, ball, ball milling cycle abrasion≤0.1 ‰ of ball lining, ball, Mohs' hardness >=9.5.
In order to avoid introducing impurity, obtain good grinding effect, with stable drop mass, in a kind of preparation method of ceramic ink jet printing color glaze mixed type negative ion ink, in the double planetary high speed ball mill used in step 4), the material of ball grinder and ball is zirconium white.
Compared with the existing technology scheme provided by the invention has following advantage:
1, ink complete processing is simple, practical, after ink jet unit spray ink Printing, does not need in printed layer, impose one deck ink protection glaze again.Burnt till by kiln, after color glaze mixed type ink sintering, self can form one deck printed layer wear-resisting closely, which greatly simplifies the production technique of spray ink Printing decoration, and reduce production cost, enhance productivity.
2, the ink-jet printed layer energy anion releasing using this kind of ink to be formed after spray ink Printing on ceramic adobe, the physical and mental health of useful people.
3, magnesiumcarbonate is introduced in color glaze mixed type ink set; play outside the suspension stability of enhancing ink, anti-caking effect effect; because it is in alkalescence; in the course of processing, react with closing in the acid colorants generation soda acid in ink, and make ink be weakly alkaline; the acid ink made compared with prior art is compared; be more conducive to the protection (acidity can corrode expensive printing head) of ink jet unit printhead, extend the work-ing life of shower nozzle, cost-saving.
4, color glaze mixed type ink solids content is high, and granularity is less, and hair color effect is better than existing ink.
5, color glaze mixed type ink adopt solvent be glycol ether (boiling point is 245 DEG C), there is not the problem of solvent evaporates, to the mankind and environment safer.
Embodiment
Technical scheme of the present invention is further illustrated below by embodiment.
Embodiment 1-5
The component formula of the ceramic ink jet printing color glaze mixed type negative ion ink that embodiment 1-5 provides is as following table 1.
Table 1
The colorant selected in embodiment 1 is praseodymium yellow, and negative ion powder is chosen as tourmalinite 30%, lanthanide rare composite salt 40%, titanium oxide 30%, and wherein tourmalinite is chosen as the mixture of dravite and elbaite.The chemical composition mass percent of powdered frit is in this embodiment: silicon-dioxide: 45% ~ 50%; Aluminum oxide 18% ~ 22%, ferric oxide :≤0.2%; Titanium dioxide :≤0.3%; Calcium oxide 8% ~ 12%; Magnesium oxide 4% ~ 5%; Potassium oxide: 1% ~ 3%; Sodium oxide: 3% ~ 5%; Barium oxide: 2% ~ 4%; Zinc oxide: 1% ~ 2%; Zirconium white: 1% ~ 2%; Loss on ignition :≤1%; Water :≤0.5%.By above chemical composition mass percent, the chemical analysis results that those skilled in the art commonly use mineral or frit class raw material by Sai Geershi and Production of Ceramics calculates formula consumption, therefore the chemical composition requirement of powdered frit is only gived here, for the raw material of Different sources or the frit of different chemical component, those skilled in the art can arrange in pairs or groups selection flexibly.Here a given concrete powdered frit batch formula: albite 35%, potassium felspar sand 7%, aluminum oxide 6%, Wingdale 10, kaolin 10, burns talcum 10%, barium carbonate 5%, wollastonite 7%, clear frit 5%, zirconium silicate 5%.But need to illustrate, above formula does not form any limitation of the invention.
The ink preparation technology of the present embodiment 1 is as follows:
The present invention also provides a kind of preparation method of above-mentioned a kind of ceramic ink jet printing color glaze mixed type negative ion ink: it comprises the steps:
The siccative mixing of step 1) colorant, negative ion powder and powdered frit; By colorant: negative ion powder: the mass ratio of powdered frit is that 28:2:15 takes, and then pours in quick mixer and mixes.
Step 2) comminution by gas stream; The colorant, negative ion powder and the powdered frit compound that adopt high speed jet mill to mix step 1) carry out beating powder, obtain the ultrafine powder that particle diameter reaches 10 μm ~ 50 μm.
Here the principle of work of illustratively comminution by gas stream: micronizer mill and cyclonic separator, fly-ash separator, induced draft fan form a whole set of crushing system.Pressurized air is after filtration after drying, crushing chamber is entered by laval nozzle high-velocity jet, at the joint place material of multiply high pressure draft by impact several times, friction, shearing and pulverizing, material after pulverizing moves to graded region with upstream under blower fan draft effect, under the powerful centrifugal action that the stage turbine of high speed rotating produces, make thickness feed separation, the fine particle meeting granularity requirements enters cyclonic separator and fly-ash separator collection by grading wheel, and coarse particles drops to disintegrating area to be continued to pulverize.Above Jet Mill is known device, can buy obtain in market.
Step 3) batching and one-level ball milling; Be in mass ratio: 45:1:47 takes step 2) ultrafine powder, magnesiumcarbonate, the glycol ether that obtain, then pour into aluminum oxide be ball lining and ball ball mill in ball milling, Ball-milling Time 12 ~ 24 hours, obtains the mixed slurry that particle diameter is 1 μm ~ 10 μm.
In order to avoid introducing impurity, obtain good grinding effect, with stable drop mass, in the present embodiment, the ball mill performance requriements used in step 3) is as follows: ball adopts isostatic pressing process, diameter 10 ~ 35mm; The Chemical Composition mass percent of ball lining, ball is: aluminium sesquioxide >=95%, silicon-dioxide 2% ~ 5%, ferric oxide≤0.1%, volume density >=3.7 gram/cc of ball lining, ball, ball milling cycle abrasion≤0.1 ‰ of ball lining, ball, Mohs' hardness >=9.5.
Step 4) batching and secondary ball milling; In mass ratio for the ratio of 93:3:2:2 takes mixed slurry, dispersion agent, bonding agent, the tensio-active agent that step 3) obtains, pour double planetary high speed ball mill into and grind, milling time 4 ~ 10 hours, obtain ink work in-process.
Dispersion agent is some water-soluble and oil soluble high score subclass, phenylformic acid and derivative, polyacrylic acid and multipolymers thereof etc. mainly.
Bonding agent ensures that the ceramic body of printing or colorant have certain intensity, and be convenient to production operation, stablize the mobility of ink, usual resin can play the dual function of bonding agent and dispersion agent.Resin is divided into the synthetic resins of natural resin and aggretion type, bonding agent in formula adopt polymerization type resin as: a kind of in polyethylene, polypropylene, polyvinyl chloride and polystyrene.
Tensio-active agent is that the surface tension of control ink factory is in the scope be applicable to.As carboxylic acid, sulfonic acid, sulfuric acid, amino or amido and salt thereof.
The principle of work of double planetary ball mill is: on the traffic cycle of one (revolution), be provided with two major planets axles in (rotation), does the running of single file planetary.Two mini-roundabouts are installed again simultaneously on two major planets axles and four ball grinder protecting seats (putting ball grinder to use) are installed on (revolution) two mini-roundabouts in (rotation), do double planetary running.Ball grinder is when this running up, and the mill ball in ball grinder defines very large high-frequency percussion power, straight line impact force, friction to material, carries out quick fine grinding to material under the effect of mass force, mixing and dispersed sample.It is known device, can by buying acquisition on the market.
In order to avoid introducing impurity, obtain good grinding effect, with stable drop mass, in the present embodiment 1, in the double planetary high speed ball mill used in step 4), the material of ball grinder and ball is zirconium white.
Step 5) constant-temperature vacuum filters; Ink work in-process step 4) obtained, in the constant temperature a mixing bowl of 80 ~ 100 DEG C, then carry out vacuumizing, vibration at high speed, use aperture≤10 μm strainer filtering, obtain ink.
Certainly, in order to easy to use, in the present embodiment 1, carry out bottling packaging after the ink after step 5) constant-temperature vacuum filters is cooled to room temperature again, can be delivered on ceramic ink jet printing production line and use.
The ceramic wall and floor bricks product that the ink printed using air ion static method of testing testing example 1 to prepare is produced, negative ion burst size is at 170 ~ 355/cm
3, be a kind of health care building materials with good Negative ion disengagement.
Embodiment 2
Fill a prescription see each constituent mass ratio given in table 1.In the present embodiment, the colorant used is for cobalt blue and spinel system black pigment are in mass ratio for 1:2 mixing is obtained, the ink color that both ratios can be allocated in actual use as required carries out collocation consumption, and also can add other pigment where necessary, such as: praseodymium yellow, reddish brown, orange etc.Negative ion powder is chosen as tourmalinite 45%, lanthanide rare composite salt 20%, titanium oxide 35%, and wherein tourmalinite is chosen as the mixture of dravite and elbaite.
In the present embodiment, preparation method is substantially the same manner as Example 1, and difference is, re-uses after the raw material of the colorant used in the present embodiment carries out calcination process in advance.Be specially: by cobalt blue and spinel system black pigment at 700 ~ 850 DEG C of temperature lower calcinations, and reach that granularity reaches that 325 order standard analysiss tail over≤0.05%, could as the raw material of colorant after moisture content≤0.5%.
The ink color development of preparation like this is more stable compared with the technique of embodiment 1.Because prepare the raw material of colorant after calcining, foreign matter content is wherein less, and mineral composition is also more homogeneous.
The ceramic wall and floor bricks product that the ink printed using air ion static method of testing testing example 2 to prepare is produced, negative ion burst size is at 155 ~ 330/cm
3, be a kind of health care building materials with good Negative ion disengagement.
Embodiment 3
In the present embodiment, colorant is that reddish brown and orange to be that 1:3 mixes by quality obtained, and Pigment Material also passes through the calcination processing as embodiment 2.The negative ion powder mineral constituent used is tourmalinite 35%, lanthanide rare composite salt 40%, and titanium oxide 25%, wherein tourmalinite is chosen as the mixture of dravite and elbaite.
In the present embodiment, the raw material preparing powdered frit also needs to carry out calcining rear use.Be specially and the raw material preparing powdered frit is calcined in high temperature silicon carbon bar furnace, calcining temperature 700 ~ 850 DEG C, calcination time 1 ~ 3 hour.So just can obtain the grog of loss on ignition≤1%, moisture content≤0.5%.Use the grog after calcining can stablize ink performance as glaze powder raw material, this is because the raw mineral materials do not calcined wherein has more organism, loss on ignition is higher, the printed layer using the higher raw material of loss on ignition ink can be made to be formed as glaze powder raw material may have more needle pore defect after burning till, cause printed layer crude, affect visual appearance.
The ceramic wall and floor bricks product that the ink printed using air ion static method of testing testing example 3 to prepare is produced, negative ion burst size is at 200 ~ 425/cm
3, be a kind of health care building materials with good Negative ion disengagement.
The preparation technology of embodiment 4 and embodiment 5 is substantially the same manner as Example 3, difference is that the raw material of prepared colorant is respectively reddish brown and orange, the negative ion powder mineral constituent used is respectively as tourmalinite 45%, lanthanide rare composite salt 20%, titanium oxide 35% and tourmalinite 40%, lanthanide rare composite salt 30%, titanium oxide 30% wherein tourmalinite is chosen as the mixture of dravite and elbaite.
Measure the pH value of embodiment 1-5 ink, between 7 ~ 8, in weakly alkaline; And insolubles particle diameter≤10 μm in ink, so surface does not have large corner angle, there is excellent stability and rheological, can not wear and tear, block and corrode shower nozzle, extend the work-ing life of shower nozzle, cost-saving.
Below know-why of the present invention is described in conjunction with specific embodiments.These describe just in order to explain principle of the present invention, and can not be interpreted as limiting the scope of the invention by any way.Based on explanation herein, those skilled in the art does not need to pay performing creative labour can associate other embodiment of the present invention, and these modes all will fall within protection scope of the present invention.