CN105440781B - A kind of production method of purple offset ink - Google Patents
A kind of production method of purple offset ink Download PDFInfo
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- CN105440781B CN105440781B CN201511032880.1A CN201511032880A CN105440781B CN 105440781 B CN105440781 B CN 105440781B CN 201511032880 A CN201511032880 A CN 201511032880A CN 105440781 B CN105440781 B CN 105440781B
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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
- C09D11/06—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
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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 purple offset ink.The production method is as follows：Step 1, moistening；Step 2, displacement；Step 3, dehydration；Step 4, refinement；In addition, further include step 5, filling；Step 6 adjusts viscosity.The production method of the present invention moistens permanent violet pigment using water, reduces the tension of surface of pigments, obtain preferable wettability effect.In addition, preferable wettability effect can improve dispersion degree of the pigment in binder, the milling time of purple offset ink is significantly shortened.Wetting agent present invention uses tap water as pigment, compared with using soft water, the effect of acquirement is consistent, and tap water is easy to obtain, cheap, and the cost of production is reduced using tap water as wetting agent.The production method has the characteristics that easy to operate, at low cost, production efficiency is high.
Description
Technical field
The present invention relates to technical field of ink, and in particular to a kind of production method of purple offset ink.
Background technology
Since permanent violet has a tinting strength, tinting power and brightness outstanding, it is excellent it is heat-resisting, resistance to ooze performance and fastness to light, therefore
The technique of existing production purple offset ink, generally uses permanent violet as ink pigment.Currently, pigment particle size one on the market
As between 250 μm to 750 μm, but the grain size of pigment need to reach 5nm to 1 μm could easily form dispersion.Therefore, pigment
It needs further to disperse in use.The production method of traditional purple offset ink is " dry mixing ", i.e., directly will
Dry powder permanent violet pigment is stirred with binder, however since the surface tension of binder is big, and be difficult to enter permanent violet face
Expect in gap, the wettability effect for often resulting in permanent violet pigment is poor, and permanent violet pigment is made to be difficult to be dispersed into required fineness.Cause
This, in the production method for leading to traditional purple offset ink, often, time-consuming for grinding, has seriously affected the effect of production
Rate has become a bottleneck of production ink.
Invention content
In view of the above-mentioned deficiencies in the prior art, it is an object of the present invention to provide a kind of shortening pigment grind time, improve production
The purple offset ink production method of efficiency.
To achieve the goals above, the present invention adopts the following technical scheme that：
A kind of production method of purple offset ink is provided, it includes the following steps：
1. a kind of production method of purple offset ink, it is characterised in that：It includes the following steps：
Step 1, moistening：It will be stirred in permanent violet and water input stirred tank, mixture be made；
Step 2, displacement：Binder is uniformly made in varnish, vegetable oil and mineral oil, is mixing slowly condition
Under, mixture made from step 1 is added in binder, so that mixture and binder is uniformly mixed, then in high-speed stirred
Under the conditions of, so that the varnish in binder is replaced the water in moistening permanent violet, obtains the second mixture；
Step 3, dehydration：Second mixture of step 2 is stood until water-oil separating, upper water is discharged, then
Remaining second mixture is warming up to certain temperature, under certain vacuum degree, carries out vacuum dehydration, and dewatered base ink is made；
Step 4, grinding：Dewatered base ink made from step 3 is ground at a certain temperature using three-roller certain
Purple offset ink is made in time.
Further include rapid five after the step 4 in above-mentioned technical proposal, filling：De- water-based ink after step 4 is ground
Ink addition agent is added, under the conditions of high-speed stirred, purple offset ink is made.
3. a kind of production method of purple offset ink according to claim 2, it is characterised in that：The step 5
Afterwards, further include rapid six, adjust viscosity：Using the viscosity of purple offset ink made from mineral oil set-up procedure five to certain value,
Finished product purple offset ink.
In above-mentioned technical proposal, in the step 1, the weight ratio between the permanent violet and the water is 1~4：1；
Water in the step 1 is tap water and soft water；
The hardness of the tap water is 100mg/L~120mg/L, and the hardness of the soft water is 30mg/L~40mg/L.
In above-mentioned technical proposal, in the step 2, the weight between the varnish, the vegetable oil and the mineral oil
Amount is than being 50~80:2~3:1~5；
The binder and the weight ratio of the mixture are 1~5:1；
The speed mixed slowly is 100rpm~300rpm；
The speed of the high-speed stirred is 900rpm~1500rpm.
In above-mentioned technical proposal, in the step 3, the second mixture of step 2 is stood up to water-oil separating, it will be upper
After layer water discharge, remaining second mixture is warming up to 60 DEG C~120 DEG C, under 0.08MPa~0.15MPa vacuum degrees, very
Dewatered base ink is made in sky dehydration；
In the dehydration of the step 3, the water content of the dewatered base ink is 0.1%~1%.
In above-mentioned technical proposal, in the step four, using three-roller at 20~50 DEG C, it will be taken off made from step 3
Base ink after water grinds 1000min~2000min, and purple offset ink is made.
In above-mentioned technical proposal, in institute's step 5, it is anti-that the ink addition agent is antifriction liniment, the back of the body prints preventing agent, skinning
The only mixture of one or more of agent or drier in any proportion；
The high-speed stirred speed is 1000rpm~1500rpm.
In above-mentioned technical proposal, in the step 6 adjustment viscosity step, viscosity is adjusted to 35Pa.s~45Pa.s.
Compared with prior art, advantageous effect is the present invention：
(1) production method of a kind of purple offset ink provided by the invention, compared with prior art, first with water to face
Material is moistened, and since the surface tension of water is relatively low, the water being added can easily replace the clearance position in permanent violet, so
After add binder made from varnish, vegetable oil and mineral oil, replaced by way of stirring and draining, in binder
Varnish can replace the position of water in permanent violet and aqueous mixtures, make permanent violet that there is preferable wettability effect.
(2) production method of a kind of purple offset ink provided by the invention, compared with prior art, due to technique elder generation
Permanent violet is moistened using water, makes to be difficult to more easily enter permanent violet gap completely into the varnish in permanent violet gap originally,
Make permanent violet that there is preferable wettability effect, i.e. the dispersion degree higher of permanent violet.Therefore, dewatered when being ground using three-roller
Ji Mo, since higher dispersion degree is beneficial to grind so that be not only able to be ground the controllable face of uniform particle sizes, particle size
Material, and the number of grinding is greatly reduced, it is effectively shortened the milling time of the production method of the purple offset ink, is improved
Production efficiency.
(3) production method of a kind of purple offset ink provided by the invention, using tap water as the wetting agent of pigment,
Compared with soft water is as wetting agent, the effect that the two can agree, tap water derives from a wealth of sources, and is easy to obtain, cheap, makes
It uses tap water to simplify production method program as wetting agent, reduces the cost of production.
(4) production method of a kind of purple offset ink provided by the invention, purple offset ink obtained, which has, to be protruded
Tinting strength, tinting power and brightness, the characteristics of excellent osmotic-pressure-tolerant and resistance to brightness.
(5) production method of a kind of purple offset ink provided by the invention has production method simple, production cost
It is low, and can be suitable for large-scale production the characteristics of.
Specific implementation mode
In order to make the technical problems, technical solutions and beneficial effects solved by the present invention be 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 used to explain
The present invention is not intended to limit the present invention.
Embodiment 1.
A kind of production method of purple offset ink, it includes the following steps：
Step 1, moistening：It will be stirred in permanent violet and water input stirred tank, mixture be made；In the present embodiment, permanent violet
Weight ratio with water is 1：1；In the present embodiment, water used is soft water；Wherein, softened water hardness is 40mg/L；
Step 2, displacement：Binder is uniformly made in varnish, vegetable oil and mineral oil, is mixing slowly condition
Under, mixture made from step 1 is added in binder, so that mixture and binder is uniformly mixed, then in high-speed stirred
Under the conditions of, so that the varnish in binder is replaced the water in moistening permanent violet, obtains the second mixture；It is all vertical in the present embodiment
The weight ratio of water, vegetable oil and mineral oil is 50:2:1；In the present embodiment, binder and the weight ratio of permanent violet and water are 1：1；
It is 100rpm wherein to mix slowly speed, and high-speed stirred speed is 950rpm.
Step 3, dehydration：Second mixture of step 2 is stood until water-oil separating, upper water is discharged, then
Remaining second mixture is warming up to 60 DEG C, under 0.08MPa vacuum degrees, carries out vacuum dehydration, and dewatered base ink is made；
Step 4, grinding：Dewatered base ink made from step 3 is ground at certain 20 DEG C using three-roller
Purple offset ink is made in 1800min.
Embodiment 2.
A kind of production method of purple offset ink, it includes the following steps：
Step 1, moistening：It will be stirred in permanent violet and water input stirred tank, mixture be made；In the present embodiment, permanent violet
Weight ratio with water is 1：1；In the present embodiment, water used is hard water；Wherein, hard water hardness is 120mg/L；
Step 2, displacement：Binder is uniformly made in varnish, vegetable oil and mineral oil, is mixing slowly condition
Under, mixture made from step 1 is added in binder, so that mixture and binder is uniformly mixed, then in high-speed stirred
Under the conditions of, so that the varnish in binder is replaced the water in moistening permanent violet, obtains the second mixture；It is all vertical in the present embodiment
The weight ratio of water, vegetable oil and mineral oil is 50:2:1；In the present embodiment, binder and the weight ratio of permanent violet and water are 1：1；
It is 100rpm wherein to mix slowly speed, and high-speed stirred speed is 950rpm；
Step 3, dehydration：Second mixture of step 2 is stood until water-oil separating, upper water is discharged, then
Remaining second mixture is warming up to 60 DEG C, under 0.08MPa vacuum degrees, carries out vacuum dehydration, and dewatered base ink is made；
Step 4, grinding：Dewatered base ink made from step 3 is ground at certain 20 DEG C using three-roller
Purple offset ink is made in 1800min.
Embodiment 3.
A kind of production method of purple offset ink, it includes the following steps：
Step 1, moistening：It will be stirred in permanent violet and water input stirred tank, mixture be made；In the present embodiment, permanent violet
Weight ratio with water is 2：1；In the present embodiment, water used is hard water；Wherein, hard water hardness is 120mg/L；
Step 2, displacement：Binder is uniformly made in varnish, vegetable oil and mineral oil, is mixing slowly condition
Under, mixture made from step 1 is added in binder, so that mixture and binder is uniformly mixed, then in high-speed stirred
Under the conditions of, so that the varnish in binder is replaced the water in moistening permanent violet, obtains the second mixture；It is all vertical in the present embodiment
The weight ratio of water, vegetable oil and mineral oil is 50:3:1；In the present embodiment, binder and the weight ratio of permanent violet and water are 1：2；
It is 200rpm wherein to mix slowly speed, and high-speed stirred speed is 1000rpm；
Step 3, dehydration：Second mixture of step 2 is stood until water-oil separating, upper water is discharged, then
Remaining second mixture is warming up to 70 DEG C, under 0.09MPa vacuum degrees, carries out vacuum dehydration, and dewatered base ink is made；
Step 4, grinding：Dewatered base ink made from step 3 is ground at certain 20 DEG C using three-roller
Purple offset ink is made in 1800min；
Step 5, filling：Ink addition agent is added in base ink after being refined made from step 4, under high velocity agitation, is made
Purple offset ink；In the present embodiment, ink addition agent is antifriction liniment, carries on the back the mixture of print preventing agent, skinning preventing agent.
Embodiment 4.
A kind of production method of purple offset ink, it includes the following steps：
Step 1, moistening：It will be stirred in permanent violet and water input stirred tank, mixture be made；In the present embodiment, permanent violet
Weight ratio with water is 3：1；In the present embodiment, water used is soft water；Wherein, softened water hardness is 40mg/L；
Step 2, displacement：Binder is uniformly made in varnish, vegetable oil and mineral oil, is mixing slowly condition
Under, mixture made from step 1 is added in binder, so that mixture and binder is uniformly mixed, then in high-speed stirred
Under the conditions of, so that the varnish in binder is replaced the water in moistening permanent violet, obtains the second mixture；It is all vertical in the present embodiment
The weight ratio of water, vegetable oil and mineral oil is 55:3:5；In the present embodiment, binder and the weight ratio of permanent violet and water are 1：3；
It is 250rpm wherein to mix slowly speed, and high-speed stirred speed is 1200rpm；
Step 3, dehydration：Second mixture of step 2 is stood until water-oil separating, upper water is discharged, then
Remaining second mixture is warming up to 80 DEG C, under 0.1MPa vacuum degrees, carries out vacuum dehydration, and dewatered base ink is made；
Step 4, grinding：Dewatered base ink made from step 3 is ground at certain 20 DEG C using three-roller
Purple offset ink is made in 1000min；
Step 5, filling：Ink addition agent is added in base ink after being refined made from step 4, under high velocity agitation, is made
Purple offset ink；In the present embodiment, ink addition agent be antifriction liniment, skinning preventing agent mixture.
Step 6, the viscosity using purple offset ink made from mineral oil set-up procedure five are 35Pa.s, finished product
Purple offset ink.
Embodiment 5.
A kind of production method of purple offset ink, it includes the following steps：
Step 1, moistening：It will be stirred in permanent violet and water input stirred tank, mixture be made；In the present embodiment, permanent violet
Weight ratio with water is 4：1；In the present embodiment, water used is hard water；Wherein, hard water hardness is 120mg/L；
Step 2, displacement：Binder is uniformly made in varnish, vegetable oil and mineral oil, is mixing slowly condition
Under, mixture made from step 1 is added in binder, so that mixture and binder is uniformly mixed, then in high-speed stirred
Under the conditions of, so that the varnish in binder is replaced the water in moistening permanent violet, obtains the second mixture；It is all vertical in the present embodiment
The weight ratio of water, vegetable oil and mineral oil is 70:3:5；In the present embodiment, binder and the weight ratio of permanent violet and water are 1：3；
It is 300rpm wherein to mix slowly speed, and high-speed stirred speed is 1200rpm；
Step 3, dehydration：Second mixture of step 2 is stood until water-oil separating, upper water is discharged, then
Remaining second mixture is warming up to 90 DEG C, under 0.12MPa vacuum degrees, carries out vacuum dehydration, and dewatered base ink is made；
Step 4, grinding：Dewatered base ink made from step 3 is ground at certain 50 DEG C using three-roller
Purple offset ink is made in 1800min；
Step 5, filling：Ink addition agent is added in base ink after being refined made from step 4, under high velocity agitation, is made
Purple offset ink；In the present embodiment, ink addition agent be antifriction liniment, skinning preventing agent mixture；
Step 6, the viscosity using purple offset ink made from mineral oil set-up procedure five are 45Pa.s, finished product
Purple offset ink.
Embodiment 6.
A kind of production method of purple offset ink, it includes the following steps：
Step 1, moistening：It will be stirred in permanent violet and water input stirred tank, mixture be made；In the present embodiment, permanent violet
Weight ratio with water is 1.5：1；In the present embodiment, water used is hard water；Wherein, hard water hardness is 120mg/L；
Step 2, displacement：Binder is uniformly made in varnish, vegetable oil and mineral oil, is mixing slowly condition
Under, mixture made from step 1 is added in binder, so that mixture and binder is uniformly mixed, then in high-speed stirred
Under the conditions of, so that the varnish in binder is replaced the water in moistening permanent violet, obtains the second mixture；It is all vertical in the present embodiment
The weight ratio of water, vegetable oil and mineral oil is 75:2:4；In the present embodiment, binder and the weight ratio of permanent violet and water are 1：2；
It is 150rpm wherein to mix slowly speed, and high-speed stirred speed is 1300rpm；
Step 3, dehydration：Second mixture of step 2 is stood until water-oil separating, upper water is discharged, then
Remaining second mixture is warming up to 90 DEG C, under 0.1MPa vacuum degrees, carries out vacuum dehydration, and dewatered base ink is made；
Step 4, grinding：Dewatered base ink made from step 3 is ground at certain 40 DEG C using three-roller
Purple offset ink is made in 1700min；
Step 5, filling：Ink addition agent is added in base ink after being refined made from step 4, under high velocity agitation, is made
Purple offset ink；In the present embodiment, ink addition agent be antifriction liniment, skinning preventing agent mixture；
Step 6, the viscosity using purple offset ink made from mineral oil set-up procedure five are 45Pa.s, finished product
Purple offset ink.
Milling time contrast experiment：
By the method comparison of the production purple offset ink of above-described embodiment 1, embodiment 2 and prior art, with existing
Technique is reference standard, show that the milling time of comparison, comparing result are shown in Table 1：
Table 1
| Technique | Prior art | 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 | 2 | 2 |
| Milling time (min) | 1800 | 720 | 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) | 100% | 100% |
Wherein：
The hardness of 1 water of ※ is indicated with the concentration of calcium carbonate
The product quality of three kinds of methods production is substantially same, i.e. offset ink shape, covering power and tinting strength, tinting power effect
It is essentially identical.By 1 comparing result of upper table it is found that the grinding number of 2 production method of embodiment 1 and embodiment is 2, milling time is
720min, it is 4 that prior art, which grinds number, and milling time is 1800min, prior art milling time longest；As it can be seen that first using water
Moistening pigment can shorten the number of grinding, can shorten the number of grinding, shorten the time of grinding, can effectively improve production
Efficiency；In addition, from correction data it is found that using soft water and tap water moistening pigment needed for milling time be consistent, by
This from control cost, using tap water as wetting agent, can have it is found that effect using soft water and originally is almost the same
Effect ground reduces the cost of production.
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 range is protected, although being explained in detail to the present invention with reference to preferred embodiment, those skilled in the art answer
Work as understanding, technical scheme of the present invention can be modified or replaced equivalently, without departing from the reality of technical solution of the present invention
Matter and range.
Claims (9)
1. a kind of production method of purple offset ink, it is characterised in that：It includes the following steps：
Step 1, moistening：It will be stirred in permanent violet and water input stirred tank, mixture be made；
Step 2, displacement：Binder is uniformly made in varnish, vegetable oil and mineral oil, it, will under the conditions of mixing slowly
Mixture made from step 1 is added in binder, so that mixture and binder is uniformly mixed, then in high-speed stirred condition
Under, so that varnish in binder is replaced the water in moistening permanent violet, obtain the second mixture, wherein is described to mix slowly
Mixing speed is 100rpm~300rpm, and the mixing speed of the high-speed stirred is 900rpm~1500rpm；
Step 3, dehydration：Second mixture of step 2 is stood until water-oil separating, upper water is discharged, then remaining
The second mixture be warming up to certain temperature, under certain vacuum degree, carry out vacuum dehydration, dewatered base ink be made；
Step 4, grinding：Dewatered base ink made from step 3 is ground into certain time at a certain temperature using three-roller,
Purple offset ink is made.
2. a kind of production method of purple offset ink according to claim 1, it is characterised in that：After the step 4,
Further include rapid five, filling：Ink addition agent is added in de- water-based ink after step 4 is ground, and under the conditions of high-speed stirred, purple is made
Coloring agent printing ink, wherein the mixing speed of the high-speed stirred is 1000rpm~1500rpm.
3. a kind of production method of purple offset ink according to claim 2, it is characterised in that：After the step 5,
Further include step 6, adjusts viscosity：Using the viscosity of purple offset ink made from mineral oil set-up procedure five to certain value,
Finished product purple offset ink.
4. a kind of production method of purple offset ink according to claim 1, it is characterised in that：In the step 1,
Weight ratio between the permanent violet and the water is 1~4：1；
Water in the step 1 is tap water and/or soft water；
The hardness of the tap water is 100mg/L~120mg/L, and the hardness of the soft water is 30mg/L~40mg/L.
5. a kind of production method of purple offset ink according to claim 1, it is characterised in that：In the step 2,
Weight ratio between the varnish, the vegetable oil and the mineral oil is 50~80:2~3:1~5；
The binder and the weight ratio of the mixture are 1~5:1.
6. a kind of production method of purple offset ink according to claim 1, it is characterised in that：In the step 3,
Second mixture of step 2 is stood until water-oil separating, after upper water is discharged, is warming up to remaining second mixture
60 DEG C~120 DEG C, under 0.08MPa~0.15MPa vacuum degrees, dewatered base ink is made in vacuum dehydration；
In the dehydration of the step 3, the water content of the dewatered base ink is 0.1%~1%.
7. a kind of production method of purple offset ink according to claim 1, it is characterised in that：The step four
In, using three-roller at 20 DEG C~50 DEG C, dewatered base ink made from step 3 is ground into 1000min~2000min, system
Obtain purple offset ink.
8. a kind of production method of purple offset ink according to claim 2, it is characterised in that：In institute's step 5, institute
The ink addition agent stated is one or more of antifriction liniment, back of the body print preventing agent, skinning preventing agent or drier by arbitrary
The mixture of ratio.
9. a kind of production method of purple offset ink according to claim 3, it is characterised in that：The step 6 adjustment
In viscosity step, viscosity is adjusted to 35Pa.s~45Pa.s.
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| CN115505296A (en) * | 2021-06-23 | 2022-12-23 | 上海深日化工有限公司 | Preparation method of low-odor cold-set offset plate rotary black ink |
| CN115386261A (en) * | 2022-09-05 | 2022-11-25 | 茂名阪田油墨有限公司 | Yellow ink suitable for GMI color management |
| CN115466539B (en) * | 2022-09-13 | 2023-09-15 | 茂名阪田油墨有限公司 | Thermoprint-resistant black ink |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| JP2008255125A (en) * | 2007-03-30 | 2008-10-23 | Toyo Ink Mfg Co Ltd | Offset ink composition |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| JP2008255125A (en) * | 2007-03-30 | 2008-10-23 | Toyo Ink Mfg Co Ltd | Offset ink composition |
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