CN105482544B - A kind of production method of white offset ink - Google Patents
A kind of production method of white offset ink Download PDFInfo
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- CN105482544B CN105482544B CN201511011842.8A CN201511011842A CN105482544B CN 105482544 B CN105482544 B CN 105482544B CN 201511011842 A CN201511011842 A CN 201511011842A CN 105482544 B CN105482544 B CN 105482544B
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D11/00—Inks
- C09D11/02—Printing inks
- C09D11/06—Printing inks based on fatty oils
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D11/00—Inks
- C09D11/02—Printing inks
- C09D11/03—Printing inks characterised by features other than the chemical nature of the binder
- C09D11/037—Printing inks characterised by features other than the chemical nature of the binder characterised by the pigment
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Abstract
The present invention relates to technical field of ink, and in particular to a kind of production method of white offset ink, comprises the following steps：Step 1, titanium dioxide are soaked with water；Step 2, adds base-material；Step 3, second of stirring；Step 4, dehydration；Step 5, grinding；In addition, further including step 6, auxiliary agent is added；Step 7, adjusts viscosity.A kind of production method of white offset ink of the present invention, first pass through and soak titanium dioxide with water, since the surface tension of water is relatively low, along with titanium dioxide has good hydrophily in itself, therefore, water is easy to the position that just can substitute air in titanium dioxide gap, to achieve the purpose that to soak titanium dioxide；Then the position of varnish displacement water is recycled, so that varnish has titanium dioxide good wetting effect, and then the production time of follow-up grinding process can be shortened, therefore, the production method of the white offset ink can greatly shorten the milling time of subsequent handling, so as to improve production efficiency.
Description
Technical field
The present invention relates to technical field of ink, and in particular to a kind of production method of white offset ink.
Background technology
According to German Standard association（German Standard Organization）Nomenclature, it is believed that granules of pigments state
It can be divided into：Primary particle, agglomerate and aggregate.Primary particle (Primary Particle) is monocrystalline, bulk, spherical or micro-
The big crystal form of crystalline substance composition exists；Agglomerate（Aggregates）It is to be adsorbed to form each other by primary particle surface；Aggregate
（Agglomerates）Be by the loose combination of primary particle or agglomerate, or both on side, angle mutually absorption and
Into mixture.
Pigment primary particle is trickle, its particle diameter can be easily formed dispersion generally between 5nm to 1 μm.But
Commercial pigments particle is usually aggregate, or the particle also bigger than aggregate, and particle diameter is at 250 μm to 750 μm（Equivalent to passing through
60 to 200 mesh sieves）.So pigment in offset ink in use, it is necessary to further disperse.
In the prior art, produce white offset ink, it is general to use titanium dioxide as pigment, because titanium dioxide have it is very good
Good covering power, tinting strength, tinting power and stability.The specific process for producing white offset ink in the prior art is as follows：By varnish,
Mixture is obtained after vegetable oil and mineral oil, then titanium dioxide is directly added under stirring toward said mixture, then
It is ground, then carries out high-speed stirred, finally adjusts viscosity.Due to being directly to add titanium dioxide in the production process of the prior art
Enter into the mixture of varnish, vegetable oil and mineral oil, i.e. existing process uses " dry mixing ", that is to say, that straight
Connect and be stirred the dry powder pigment of titanium dioxide and varnish etc..And since the surface tension of varnish is relatively large, it is difficult to complete
Enter entirely in the gap of titanium white powder pigment so that the wetting effect of titanium white powder pigment is unsatisfactory, so that titanium dioxide face
The scattered of material is mainly realized by impact grinding.Therefore so that generally to be ground 4 to 5 times in grinding process can just make titanium
White powder is preferably scattered, grinding 4 to 5 times it is time-consuming long, generally require 1440min, so as to seriously affect production efficiency, and
Become the bottleneck of white offset ink production technology.
The content of the invention
In view of the above-mentioned deficiencies in the prior art, it is an object of the present invention to it is white to provide that a kind of milling time is short, production efficiency is high
The production method of coloring agent printing ink.
To achieve these goals, the present invention adopts the following technical scheme that：
A kind of production method of white offset ink is provided, it comprises the following steps：
Step 1, titanium dioxide are soaked with water：Titanium dioxide is soaked with water, obtains the mixture of titanium dioxide and water；
Step 2, adds base-material：By varnish, vegetable oil and mineral oil it is uniform after obtained base-material, in a constant speed
Under conditions of degree stirring, it is added in the mixture of titanium dioxide made from step 1 and water, so that the varnish displacement in base-material
Water in the mixture of titanium dioxide and water, is made the second mixture；
Step 3, second of stirring：Second is carried out to the second mixture made from step 2 to stir, and with certain speed
Stir certain time；
Step 4, dehydration：The second mixture that second of stirring is completed in step 3 is dehydrated, is obtained certain aqueous
The material of amount；
Step 5, grinding：The material that step 4 obtains is ground, that is, white offset ink is made.
In above-mentioned technical proposal, after the step 5, step 6 is further included, adds auxiliary agent：In the condition of high-speed stirred
Under, auxiliary agent is added in the material after being ground toward step 5, after high-speed stirred is uniform, that is, white offset ink is made.
In above-mentioned technical proposal, after the step 6, step 7 is further included, adjusts viscosity：Help being added in step 6
The material of agent is adjusted viscosity to certain value, that is, white offset ink is made.
In above-mentioned technical proposal, the step 1 titanium dioxide is with water moistening step, the weight of the titanium dioxide and the water
Amount is than being 5 ~ 7:1；
The water is tap water or soft water, and the hardness of the soft water is 30mg/L ~ 50mg/L.
In above-mentioned technical proposal, the step 2 is added in base-material step, the varnish, the vegetable oil and the ore deposit
Weight ratio between thing oil is 30 ~ 36:1~3:1；
Weight ratio between the base-material and the titanium dioxide and the mixture of water is 1:1.5~3.
The step 2 is added in base-material step, and the speed of stirring is 100rpm ~ 300rpm.
In above-mentioned technical proposal, in described second of whipping step of step 3, to the second mixture made from step 2 into
The speed of second of stirring of row is 1000rpm ~ 1200rpm, and the time of second of stirring is 25min ~ 35min.
In above-mentioned technical proposal, in the step 4 dehydration, second that second of stirring is completed in step 3 is mixed
Compound carries out vacuum dehydration at 90 DEG C ~ 110 DEG C, and it is 0.08MPa ~ 0.2MPa to control vacuum；
In the step 4 dehydration, the water content of obtained material is 0.1% ~ 1%.
In above-mentioned technical proposal, in the step 5 grinding steps, the material obtained to step 4 is carried out using three-roller
Grinding, milling time are 300min ~ 720min, and the temperature of grinding is 30 DEG C ~ 50 DEG C.
In above-mentioned technical proposal, the step 6 is added in additives step, and the auxiliary agent includes antifriction liniment, back of the body print prevents
One or two kinds of mixture above in any proportion in agent, skinning preventing agent or drier；
The speed of the high-speed stirred is 1000rpm ~ 1200rpm, and the time of the high-speed stirred is 15min ~ 25min.
In above-mentioned technical proposal, in the step 7 adjustment viscosity step, the material that auxiliary agent is added in step 6 is utilized
Mineral oil is adjusted viscosity to the Pas of 35Pas ~ 40.
Compared with prior art, beneficial effect is the present invention：
（1）A kind of production method of white offset ink provided by the invention, first passes through step 1 and moistens titanium dioxide water
Wet, since the surface tension of water is relatively low, along with titanium dioxide has good hydrophily in itself, therefore, water is easy to just
The position of air in titanium dioxide gap can be substituted, to achieve the purpose that to soak titanium dioxide；Then added again by step 2 containing all
The base-material of vertical water, and by stirring the method for water squeezing into line replacement, i.e., substitute the position of water using varnish, so,
Just varnish can be caused to have good wetting effect to titanium dioxide, and then can shorten and cause titanium dioxide subsequently through grinding process
Further the scattered production time, therefore, the production method of the white offset ink can greatly shorten the grinding of subsequent handling
Time, so as to improve production efficiency.
（2）A kind of production method of white offset ink provided by the invention, step 2 add the stirring in base-material step
And second of whipping step of step 3 is extremely important, because this is for enabling varnish to replace water well, puts
Changing principle is：Titanium white powder particles are usually aggregate, or the particle also bigger than aggregate, structure relative loose, and titanium dioxide is used
After water wetting, water instead of the position of air in titanium dioxide gap, make the surface energy of titanium dioxide reduce, and be conducive to point below
Dissipate；In the mixture of titanium dioxide and water, add in the system that base-material containing varnish is formed, varnish is continuous phase, titanium white
The mixture of powder and water is dispersed phase, system is presented what is rolled by the stirring of step 2 and second of stirring power of step 3
Circulation, and a very big vortex is produced, positioned at the titanium dioxide particle of top surface, drop to the bottom of vortex in the shape of a spiral quickly
Portion, a turbulent area is formed about in agitating paddle；In turbulent area, the titanium dioxide particle of aggregate is subject to certain speed, strong
Shearing, shock, crushing and scattered, become the titanium dioxide particle and water of agglomerate or the aggregate of smaller level-one.Due to centrifugation
The effect of power, then titanium dioxide and water separate in the continuous phase that varnish is formed.Small droplet is with the stream of material
Dynamic to be constantly sticked together and form large water drop, large water drop, which is further sticked together, forms water phase.Since varnish is
Oiliness, property compatible with water is poor, and then water stands with all water and forms two-phase.So far, replacement process is completed.
（3）A kind of production method of white offset ink provided by the invention, step 2 are added in base-material step, stirring
Speed is 100rpm ~ 300rpm, belongs to and mixes slowly；And second of speed stirred of step 3 is 1000rpm ~ 1200rpm, belong to
In high-speed stirred；Need mix slowly in step 2 addition base-material step is because the viscosity of material is larger at this time, if stirring
Speed is mixed, then the load of whisking machines is excessive；And the base-material obtained after varnish, vegetable oil and uniform mineral oil
After addition, the viscosity of the second mixture declines therewith, and carrying out high-speed stirred by second of stirring of step 3 again at this time disperses, into
And it is more favorable for the displacement between varnish and water.
（4）A kind of production method of white offset ink provided by the invention, step 1 titanium dioxide with water moistening step,
If water is soft water, the milling time of step 5 only needs 300min ~ 360min, if water is tap water, during the grinding of step 5
Between only need 720min, compared to the dry mixing of the prior art, its milling time generally requires 1440min, therefore, of the invention
The production method of white offset ink can greatly shorten milling time, improve production efficiency.
（5）A kind of production method of white offset ink provided by the invention, it is simple with production method, and can be applicable in
In large-scale production the characteristics of.
Embodiment
In order to which technical problem, technical solution and beneficial effect solved by the invention is more clearly understood, below in conjunction with
Embodiment, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only explaining
The present invention, is not intended to limit the present invention.
Embodiment 1.
A kind of production method of white offset ink, it comprises the following steps：
Step 1, titanium dioxide are soaked with water：Titanium dioxide is soaked with water, obtains the mixture of titanium dioxide and water；This implementation
In example, the weight ratio of titanium dioxide and water is 6:1；In the present embodiment, water is soft water, and the hardness of soft water is 40mg/L；
Step 2, adds base-material：By varnish, vegetable oil and mineral oil it is uniform after obtained base-material, in a constant speed
Under conditions of degree stirring, it is added in the mixture of titanium dioxide made from step 1 and water, so that the varnish displacement in base-material
Water in the mixture of titanium dioxide and water, is made the second mixture；In the present embodiment, between varnish, vegetable oil and mineral oil
Weight ratio be 33:2:1；Weight ratio between the mixture of base-material and titanium dioxide and water is 1:2；Wherein, the speed of stirring is
200rpm；
Step 3, second of stirring：Second is carried out to the second mixture made from step 2 to stir, and with 1100rpm
Speed stirring 30min；
Step 4, dehydration：Vacuum is carried out at 100 DEG C to the second mixture for completing second of stirring in step 3 to take off
Water, obtains the material that water content is 0.5%；In the present embodiment, the vacuum of dehydration is 0.1MPa；
Step 5, grinding：The material that step 4 obtains is ground using three-roller, that is, white offset ink is made；
In the present embodiment, milling time 360min, the temperature of grinding is 40 DEG C.
Embodiment 2.
A kind of production method of white offset ink, it comprises the following steps：
Step 1, titanium dioxide are soaked with water：Titanium dioxide is soaked with water, obtains the mixture of titanium dioxide and water；This implementation
In example, the weight ratio of titanium dioxide and water is 5:1；In the present embodiment, water is tap water；
Step 2, adds base-material：By varnish, vegetable oil and mineral oil it is uniform after obtained base-material, in a constant speed
Under conditions of degree stirring, it is added in the mixture of titanium dioxide made from step 1 and water, so that the varnish displacement in base-material
Water in the mixture of titanium dioxide and water, is made the second mixture；In the present embodiment, between varnish, vegetable oil and mineral oil
Weight ratio be 30:1:1；Weight ratio between the mixture of base-material and titanium dioxide and water is 1:1.5；Wherein, the speed of stirring
For 100rpm；
Step 3, second of stirring：Second is carried out to the second mixture made from step 2 to stir, and with 1000rpm
Speed stirring 35min；
Step 4, dehydration：Vacuum dehydration is carried out at 90 DEG C to the second mixture that second of stirring is completed in step 3,
Obtain the material that water content is 0.1%；In the present embodiment, the vacuum of dehydration is 0.08MPa；
Step 5, grinding：The material that step 4 obtains is ground using three-roller, that is, white offset ink is made；
In the present embodiment, milling time 300min, the temperature of grinding is 50 DEG C.
Embodiment 3.
A kind of production method of white offset ink, it comprises the following steps：
Step 1, titanium dioxide are soaked with water：Titanium dioxide is soaked with water, obtains the mixture of titanium dioxide and water；This implementation
In example, the weight ratio of titanium dioxide and water is 7:1；In the present embodiment, water is soft water, and the hardness of soft water is 30mg/L；
Step 2, adds base-material：By varnish, vegetable oil and mineral oil it is uniform after obtained base-material, in a constant speed
Under conditions of degree stirring, it is added in the mixture of titanium dioxide made from step 1 and water, so that the varnish displacement in base-material
Water in the mixture of titanium dioxide and water, is made the second mixture；In the present embodiment, between varnish, vegetable oil and mineral oil
Weight ratio be 36:3:1；Weight ratio between the mixture of base-material and titanium dioxide and water is 1:3；Wherein, the speed of stirring is
300rpm；
Step 3, second of stirring：Second is carried out to the second mixture made from step 2 to stir, and with 1200rpm
Speed stirring 25min；
Step 4, dehydration：Vacuum is carried out at 110 DEG C to the second mixture for completing second of stirring in step 3 to take off
Water, obtains the material that water content is 1%；In the present embodiment, the vacuum of dehydration is 0.2MPa；
Step 5, grinding：The material that step 4 obtains is ground using three-roller；In the present embodiment, milling time
For 330min, the temperature of grinding is 30 DEG C；
Step 6, adds auxiliary agent：Under conditions of high-speed stirred, auxiliary agent is added in the material after being ground toward step 5, it is high
After speed stirs evenly, that is, white offset ink is made.In the present embodiment, the speed of high-speed stirred is 1100rpm, high-speed stirred
Time is 20min；In the present embodiment, auxiliary agent prints preventing agent, skinning preventing agent including antifriction liniment, the back of the body mixed in any proportion
And drier.
Embodiment 4.
A kind of production method of white offset ink, it comprises the following steps：
Step 1, titanium dioxide are soaked with water：Titanium dioxide is soaked with water, obtains the mixture of titanium dioxide and water；This implementation
In example, the weight ratio of titanium dioxide and water is 5.5:1；In the present embodiment, water is soft water, and the hardness of soft water is 35mg/L；
Step 2, adds base-material：By varnish, vegetable oil and mineral oil it is uniform after obtained base-material, in a constant speed
Under conditions of degree stirring, it is added in the mixture of titanium dioxide made from step 1 and water, so that the varnish displacement in base-material
Water in the mixture of titanium dioxide and water, is made the second mixture；In the present embodiment, between varnish, vegetable oil and mineral oil
Weight ratio be 34:1.5:1；Weight ratio between the mixture of base-material and titanium dioxide and water is 1:2.5；Wherein, the speed of stirring
Spend for 150rpm；
Step 3, second of stirring：Second is carried out to the second mixture made from step 2 to stir, and with 1050rpm
Speed stirring 33min；
Step 4, dehydration：Vacuum dehydration is carried out at 95 DEG C to the second mixture that second of stirring is completed in step 3,
Obtain the material that water content is 0.3%；In the present embodiment, the vacuum of dehydration is 0.15MPa；
Step 5, grinding：The material that step 4 obtains is ground using three-roller；In the present embodiment, milling time
For 350min, the temperature of grinding is 35 DEG C；
Step 6, adds auxiliary agent：Under conditions of high-speed stirred, auxiliary agent is added in the material after being ground toward step 5.This
In embodiment, the speed of high-speed stirred is 1000rpm, and the time of high-speed stirred is 25min；In the present embodiment, auxiliary agent includes pressing
The antifriction liniment and back of the body print preventing agent of arbitrary proportion mixing；
Step 7, adjusts viscosity：Viscosity is adjusted to the material that auxiliary agent is added in step 6 to 38 Pas, that is, is made
White offset ink.
Embodiment 5.
A kind of production method of white offset ink, it comprises the following steps：
Step 1, titanium dioxide are soaked with water：Titanium dioxide is soaked with water, obtains the mixture of titanium dioxide and water；This implementation
In example, the weight ratio of titanium dioxide and water is 6.5:1；In the present embodiment, water is soft water, and the hardness of soft water is 45mg/L；
Step 2, adds base-material：By varnish, vegetable oil and mineral oil it is uniform after obtained base-material, in a constant speed
Under conditions of degree stirring, it is added in the mixture of titanium dioxide made from step 1 and water, so that the varnish displacement in base-material
Water in the mixture of titanium dioxide and water, is made the second mixture；In the present embodiment, between varnish, vegetable oil and mineral oil
Weight ratio be 31:1.8:1；Weight ratio between the mixture of base-material and titanium dioxide and water is 1:1.8；Wherein, the speed of stirring
Spend for 250rpm；
Step 3, second of stirring：Second is carried out to the second mixture made from step 2 to stir, and with 1080rpm
Speed stirring 31min；
Step 4, dehydration：Vacuum is carried out at 105 DEG C to the second mixture for completing second of stirring in step 3 to take off
Water, obtains the material that water content is 0.8%；In the present embodiment, the vacuum of dehydration is 0.09MPa；
Step 5, grinding：The material that step 4 obtains is ground using three-roller；In the present embodiment, milling time
For 320min, the temperature of grinding is 48 DEG C；
Step 6, adds auxiliary agent：Under conditions of high-speed stirred, auxiliary agent is added in the material after being ground toward step 5.This
In embodiment, the speed of high-speed stirred is 1200rpm, and the time of high-speed stirred is 15min；In the present embodiment, auxiliary agent includes pressing
The skinning preventing agent and drier of arbitrary proportion mixing；
Step 7, adjusts viscosity：Viscosity is adjusted to the material that auxiliary agent is added in step 6 to 35Pas, that is, is made
White offset ink.
Embodiment 6.
A kind of production method of white offset ink, it comprises the following steps：
Step 1, titanium dioxide are soaked with water：Titanium dioxide is soaked with water, obtains the mixture of titanium dioxide and water；This implementation
In example, the weight ratio of titanium dioxide and water is 5:1；In the present embodiment, water is soft water, and the hardness of soft water is 33mg/L；
Step 2, adds base-material：By varnish, vegetable oil and mineral oil it is uniform after obtained base-material, in a constant speed
Under conditions of degree stirring, it is added in the mixture of titanium dioxide made from step 1 and water, so that the varnish displacement in base-material
Water in the mixture of titanium dioxide and water, is made the second mixture；In the present embodiment, between varnish, vegetable oil and mineral oil
Weight ratio be 35:3:1；Weight ratio between the mixture of base-material and titanium dioxide and water is 1:2.7；Wherein, the speed of stirring
For 120rpm；
Step 3, second of stirring：Second is carried out to the second mixture made from step 2 to stir, and with 1180rpm
Speed stirring 22min；
Step 4, dehydration：Vacuum dehydration is carried out at 97 DEG C to the second mixture that second of stirring is completed in step 3,
Obtain the material that water content is 0.4%；In the present embodiment, the vacuum of dehydration is 0.13MPa；
Step 5, grinding：The material that step 4 obtains is ground using three-roller；In the present embodiment, milling time
For 320min, the temperature of grinding is 43 DEG C；
Step 6, adds auxiliary agent：Under conditions of high-speed stirred, auxiliary agent is added in the material after being ground toward step 5.This
In embodiment, the speed of high-speed stirred is 1050rpm, and the time of high-speed stirred is 22min；In the present embodiment, auxiliary agent is antifriction
Liniment；
Step 7, adjusts viscosity：Viscosity is adjusted to the material that auxiliary agent is added in step 6 to 40 Pas, that is, is made
White offset ink.
Embodiment 7.
A kind of production method of white offset ink, it comprises the following steps：
Step 1, titanium dioxide are soaked with water：Titanium dioxide is soaked with water, obtains the mixture of titanium dioxide and water；This implementation
In example, the weight ratio of titanium dioxide and water is 5.6:1；In the present embodiment, water is soft water, and the hardness of soft water is 39mg/L；
Step 2, adds base-material：By varnish, vegetable oil and mineral oil it is uniform after obtained base-material, in a constant speed
Under conditions of degree stirring, it is added in the mixture of titanium dioxide made from step 1 and water, so that the varnish displacement in base-material
Water in the mixture of titanium dioxide and water, is made the second mixture；In the present embodiment, between varnish, vegetable oil and mineral oil
Weight ratio be 32:1:1；Weight ratio between the mixture of base-material and titanium dioxide and water is 1:1.5；Wherein, the speed of stirring
For 270rpm；
Step 3, second of stirring：Second is carried out to the second mixture made from step 2 to stir, and with 1200rpm
Speed stirring 25min；
Step 4, dehydration：Vacuum is carried out at 110 DEG C to the second mixture for completing second of stirring in step 3 to take off
Water, obtains the material that water content is 0.6%；In the present embodiment, the vacuum of dehydration is 0.14MPa；
Step 5, grinding：The material that step 4 obtains is ground using three-roller；In the present embodiment, milling time
For 300min, the temperature of grinding is 50 DEG C；
Step 6, adds auxiliary agent：Under conditions of high-speed stirred, auxiliary agent is added in the material after being ground toward step 5.This
In embodiment, the speed of high-speed stirred is 1150rpm, and the time of high-speed stirred is 18min；In the present embodiment, auxiliary agent is skinning
Preventing agent；
Step 7, adjusts viscosity：Viscosity is adjusted to the material that auxiliary agent is added in step 6 to 37 Pas, that is, is made
White offset ink.
Milling time contrast experiment：
The production technology of above-described embodiment 1, the production method of the white offset ink of embodiment 2 and the prior art is carried out
Milling time, and offset ink character, covering power and the coloring force data of the white offset ink obtained by contrast are contrasted, it is right
Than result such as table 1 below：
Table 1
| Technique | Existing process | Embodiment 1 | Embodiment 2 |
| Water source | --- | Soft water | Tap water |
| Hardness (mg/L) ※ 1 of water | --- | 40 | 120 |
| The pH value of water | --- | 7.2 | 7.6 |
| Grind number | 4 | 1 | 2 |
| Milling time (min) | 1440 | 360 | 720 |
| Offset ink character | Standard | On an equal basis | On an equal basis |
| Covering power | Standard | On an equal basis | On an equal basis |
| Tinting strength, tinting power | 100% (standard) | 103% | 100% |
Wherein：
The hardness of 1 water of ※ is represented with calcium carbonate concentration.
From the correction data of above-mentioned table 1, wetting agent of the embodiment 1 using soft water as step 1 titanium dioxide, during grinding
Between be 360min, wetting agent of the embodiment 2 using tap water as step 1 titanium dioxide, milling time 720min, however, existing
For technique due to using " dry mixing ", grinding number is relatively more, and milling time is long, it is necessary to 1440min, therefore of the invention
The production method of white offset ink can greatly reduce grinding number and milling time, so as to improve production efficiency.In addition, this
Invention is in the case where greatly reducing grinding number and milling time, and obtained white offset ink is in ink shape, covering
In terms of power and tinting strength, tinting power with existing process made from ink it is roughly the same.
Finally it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than the present invention is protected
The limitation of scope is protected, although being explained with reference to preferred embodiment to the present invention, those of ordinary skill in the art should
Work as understanding, can be to technical scheme technical scheme is modified or replaced equivalently, without departing from the reality of technical solution of the present invention
Matter and scope.
Claims (10)
- A kind of 1. production method of white offset ink, it is characterised in that：It comprises the following steps：Step 1, titanium dioxide are soaked with water：Titanium dioxide is soaked with water, obtains the mixture of titanium dioxide and water；Step 2, adds base-material：By varnish, vegetable oil and mineral oil it is uniform after obtained base-material, stirred in certain speed Under conditions of mixing, it is added in the mixture of titanium dioxide made from step 1 and water, so that the varnish displacement titanium white in base-material Water in the mixture of powder and water, is made the second mixture；Step 3, second of stirring：Second is carried out to the second mixture made from step 2 to stir, and is stirred with certain speed Certain time；Step 4, dehydration：The second mixture that second of stirring is completed in step 3 is dehydrated, obtains certain water content Material；Step 5, grinding：The material that step 4 obtains is ground, that is, white offset ink is made.
- A kind of 2. production method of white offset ink according to claim 1, it is characterised in that：The step 5 it Afterwards, step 6 is further included, adds auxiliary agent：Under conditions of high-speed stirred, auxiliary agent is added in the material after being ground toward step 5, it is high After speed stirs evenly, that is, white offset ink is made.
- A kind of 3. production method of white offset ink according to claim 2, it is characterised in that：The step 6 it Afterwards, step 7 is further included, adjusts viscosity：Viscosity is adjusted to the material that auxiliary agent is added in step 6 to certain value, that is, is made White offset ink.
- A kind of 4. production method of white offset ink according to claim 1, it is characterised in that：The step 1 titanium white For powder with water moistening step, the weight ratio of the titanium dioxide and the water is 5~7:1.
- A kind of 5. production method of white offset ink according to claim 1, it is characterised in that：The step 2 adds In base-material step, the weight ratio between the varnish, the vegetable oil and the mineral oil is 30~36:1~3:1；Weight ratio between the base-material and the titanium dioxide and the mixture of water is 1:1.5~3.The step 2 is added in base-material step, and the speed of stirring is 100rpm~300rpm.
- A kind of 6. production method of white offset ink according to claim 1, it is characterised in that：The step 3 second In secondary whipping step, the speed that second of stirring is carried out to the second mixture made from step 2 is 1000rpm~1200rpm, The time of second of stirring is 25min~35min.
- A kind of 7. production method of white offset ink according to claim 1, it is characterised in that：The step 4 dehydration In step, vacuum dehydration is carried out at 90 DEG C~110 DEG C to the second mixture that second of stirring is completed in step 3, and control Vacuum is 0.08MPa~0.2MPa；In the step 4 dehydration, the water content of obtained material is 0.1%~1%.
- A kind of 8. production method of white offset ink according to claim 1, it is characterised in that：The step 5 grinding In step, the material that step 4 obtains is ground using three-roller, milling time is 300min~360min, the temperature of grinding Spend for 30 DEG C~50 DEG C.
- A kind of 9. production method of white offset ink according to claim 2, it is characterised in that：The step 6 adds In additives step, the auxiliary agent includes one or two kinds of in antifriction liniment, back of the body print preventing agent, skinning preventing agent or drier Mixture in any proportion above；The speed of the high-speed stirred is 1000rpm~1200rpm, and the time of the high-speed stirred is 15min~25min.
- A kind of 10. production method of white offset ink according to claim 3, it is characterised in that：The step 7 tune In whole viscosity step, viscosity is adjusted to 35Pas~40Pa using mineral oil to the material that auxiliary agent is added in step 6 s。
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| JPH05247395A (en) * | 1992-03-06 | 1993-09-24 | Toyo Ink Mfg Co Ltd | Ink for water-free lithography |
| JP2006328278A (en) * | 2005-05-27 | 2006-12-07 | Nippon Sheet Glass Co Ltd | Oily ink composition |
| CN101142288A (en) * | 2005-03-22 | 2008-03-12 | 阪田油墨株式会社 | Process for producing ink composition for offset printing, and ink composition for offset printing produced by said production process |
| JP2012241023A (en) * | 2011-05-13 | 2012-12-10 | Sakata Corp | Method for producing ink composition for offset printing |
| JP2013006982A (en) * | 2011-06-24 | 2013-01-10 | Sakata Corp | Method for producing ink composition for offset printing |
| CN103045010A (en) * | 2012-12-27 | 2013-04-17 | 茂名阪田油墨有限公司 | Preparation method of black basic ink for manufacturing planographic printing ink |
| CN103342922A (en) * | 2013-07-30 | 2013-10-09 | 新乡市雯德翔川油墨有限公司 | All vegetable oil high-speed planographic printing ink |
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| JPH05247395A (en) * | 1992-03-06 | 1993-09-24 | Toyo Ink Mfg Co Ltd | Ink for water-free lithography |
| CN101142288A (en) * | 2005-03-22 | 2008-03-12 | 阪田油墨株式会社 | Process for producing ink composition for offset printing, and ink composition for offset printing produced by said production process |
| JP2006328278A (en) * | 2005-05-27 | 2006-12-07 | Nippon Sheet Glass Co Ltd | Oily ink composition |
| JP2012241023A (en) * | 2011-05-13 | 2012-12-10 | Sakata Corp | Method for producing ink composition for offset printing |
| JP2013006982A (en) * | 2011-06-24 | 2013-01-10 | Sakata Corp | Method for producing ink composition for offset printing |
| CN103045010A (en) * | 2012-12-27 | 2013-04-17 | 茂名阪田油墨有限公司 | Preparation method of black basic ink for manufacturing planographic printing ink |
| CN103342922A (en) * | 2013-07-30 | 2013-10-09 | 新乡市雯德翔川油墨有限公司 | All vegetable oil high-speed planographic printing ink |
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