CN110760220A - Flexographic water-based red ink composition and preparation method thereof - Google Patents
Flexographic water-based red ink composition and preparation method thereof Download PDFInfo
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- CN110760220A CN110760220A CN201911203091.8A CN201911203091A CN110760220A CN 110760220 A CN110760220 A CN 110760220A CN 201911203091 A CN201911203091 A CN 201911203091A CN 110760220 A CN110760220 A CN 110760220A
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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
- C09D11/10—Printing inks based on artificial resins
- C09D11/106—Printing inks based on artificial resins containing macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C09D11/107—Printing inks based on artificial resins containing macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds from unsaturated acids or derivatives thereof
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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
- C09D11/033—Printing inks characterised by features other than the chemical nature of the binder characterised by the solvent
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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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
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Abstract
The invention discloses a flexographic water-based red ink composition, which comprises the following components in percentage by mass: 24.2 to 25.4 percent of deionized water, 18.7 to 21.3 percent of absolute ethyl alcohol, 19.2 to 20.6 percent of styrene acrylic acid copolymer, 0.18 to 0.22 percent of defoaming agent, 14.6 to 15.4 percent of kaolin and 19.5 to 20.5 percent of iron oxide red. The invention adopts styrene acrylic acid copolymer as the carrier of pigment and filler, which improves the adhesion of the red ink on paper; the kaolin is used as the functional filler of the composition, and has the advantages of chemical inertness, ideal flow property and low cost; the iron oxide red has the advantages of strong ultraviolet absorption performance, light resistance and excellent atmospheric resistance.
Description
Technical Field
The invention relates to the technical field of printing ink, in particular to a flexible water-based red ink composition, and also relates to a preparation method of the flexible water-based red ink composition.
Background
The flexographic printing ink is originally named as aniline printing ink, the name of the aniline printing ink is that aniline dye is adopted in the earliest printing ink formula, at first, the flexographic printing ink is only used for printing paper bags, the use range is gradually expanded, most of the current flexographic printing ink is concentrated in the field of packaging printing, about 85 percent of the flexographic printing ink is used, such as various plastic films, metal foils, paperboards, decorative packaging paper, glass cloth, kraft paper and the like, however, although the printing ink has good processing performance, quick drying and good printing adaptability, a large amount of benzene and ketone gases which easily pollute air are easily generated in the printing process, the printing environment is poor, the body health of printing workers is damaged, particularly when the printing ink is applied to packaging printing of products such as candies, foods, medicines, tobacco rolls and the like, toxic and harmful substances such as benzene and ketone chemicals are easily generated after the products are packaged, thereby affecting the quality of the product.
The Chinese patent with the application number of CN201210481323.8 discloses a water-based narrow-width coated paper flexographic ink which is prepared from the following raw materials in parts by weight: 30-45 parts of self-crosslinking water-based acrylic emulsion, 20-28 parts of modified water-based acrylic resin, 15-20 parts of pigment powder, 1-3 parts of pigment dispersing agent, 0.2-0.8 part of organic silicon defoaming agent, 1-4 parts of nonionic organic surfactant, 2-6 parts of alcohol ester dodeca, 3-8 parts of PH stabilizer, 3-5 parts of anionic surfactant and 5-10 parts of water. The color developing agent has the advantages of environmental protection, no toxicity, good use safety, stable performance, good printing adaptability to coated paper, good color developing property, good glossiness, good product quality and the like.
According to the regulation in "list of substances permitted for smoking materials" YQ-2012, the above components contain parts which cannot be applied to smoking materials, so that the aqueous ink cannot be used for printing of surface ornaments on cigarettes, cigarette cases and the like, and the components contained in the aqueous ink are more, difficult to produce and not beneficial to processing and manufacturing.
Disclosure of Invention
The invention aims to provide a flexographic aqueous red ink composition and a preparation method thereof, wherein the flexographic aqueous red ink composition is composed of deionized water, absolute ethyl alcohol, a styrene acrylic copolymer, a defoaming agent, kaolin and iron oxide red, and all the used components meet the regulations in the list of acceptable substances for cigarette material YQ-2012.
The styrene acrylic copolymer is used as a carrier of pigment and filler, and the adhesion of the red ink on paper can be improved without an accelerator. The kaolin is used as the functional filler of the composition, and has the advantages of chemical inertness, ideal flow property and low cost. The iron oxide red has the advantages of strong ultraviolet absorption performance, light resistance and excellent atmospheric resistance.
In order to achieve the purpose, the invention provides the following technical scheme: a flexographic water-based red ink composition comprises the following components in percentage by mass: 24.2 to 25.4 percent of deionized water, 18.7 to 21.3 percent of absolute ethyl alcohol, 19.2 to 20.6 percent of styrene acrylic acid copolymer, 0.18 to 0.22 percent of defoaming agent, 14.6 to 15.4 percent of kaolin and 19.5 to 20.5 percent of iron oxide red.
Preferably, the antifoaming agent is octamethylcyclotetrasiloxane.
The invention also provides a preparation method of the flexographic water-based red ink composition, which comprises the following steps:
s1: preparing materials: preparing deionized water, absolute ethyl alcohol, styrene acrylic copolymer, a defoaming agent, kaolin and iron oxide red;
s2: drying: respectively placing kaolin and iron oxide red in a drying kettle to dry for 20min-30min, and continuously stirring in the drying process to break up the kaolin and the iron oxide red due to water absorption and bonding;
s3: grinding: grinding the kaolin and the iron oxide red obtained in the step S2 respectively to obtain kaolin powder and iron oxide red powder;
s4: screening: respectively conveying the kaolin and the iron oxide red dried in the step S3 to two groups of different sieving machines, respectively sieving the kaolin powder and the iron oxide red powder by using the two groups of sieving machines, controlling the discharge particle size of the kaolin powder to be between 1 and 5 mu m, controlling the discharge particle size of the iron oxide red powder to be between 1 and 5 mu m, and returning the kaolin powder and the iron oxide red powder which do not pass through the sieving to the step S3 for continuous grinding;
s5: weighing: weighing the deionized water, the absolute ethyl alcohol, the styrene acrylic acid copolymer and the defoaming agent in the step S1 according to corresponding mass percentages, and weighing the kaolin and the iron oxide red with the particle sizes meeting the requirements in the step S4 according to corresponding mass percentages;
s6: preliminary mixing: adding the deionized water, the absolute ethyl alcohol and the styrene acrylic acid copolymer weighed in the step S5 into a proportioning cylinder, and uniformly stirring, wherein the stirring speed of a stirrer is 20-40 r/min;
s7: preparing a red ink composition: reducing the stirring speed of the step S6 to 10r/min-20r/min, adding the defoaming agent, kaolin and iron oxide red weighed in the step S5 into a batching cylinder, and stirring for 30min-45min to prepare the flexographic aqueous red ink composition;
s8: packaging: the composition obtained in step S7 is filled by an automatic filling machine.
Preferably, in step S1, the sealed tanks for storing the deionized water, the absolute ethyl alcohol, the styrene acrylic acid copolymer and the defoaming agent are separately arranged, and the distance between each group of sealed tanks is not less than 50 m.
Preferably, in the step S2, the drying temperature is 50 ℃ to 75 ℃, so that the crystal water is effectively removed.
Preferably, in the steps S6 and S7, the agitator is a ZSH series agitator, and the agitator motor of the agitator is a variable frequency motor.
Preferably, in step S8, the automatic filling machine is a DGS series automatic filling machine.
Compared with the prior art, the invention has the beneficial effects that: the flexographic aqueous red ink composition consists of deionized water, absolute ethyl alcohol, styrene acrylic acid copolymer, a defoaming agent, kaolin and iron oxide red, and all the used components meet the regulations in the list of substances approved for cigarette materials YQ-2012; the styrene acrylic copolymer is used as a carrier of pigment and filler, so that the adhesive force of the red ink on paper is improved; the kaolin is used as the functional filler of the composition, and has the advantages of chemical inertness, high covering capacity, ideal flowing property, low cost and very good suspension property; the iron oxide red has the advantages of strong ultraviolet absorption performance, excellent light resistance and excellent atmospheric resistance.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The mass percentages of the components and the data of the specific embodiment of the flexographic water-based red ink composition provided by the invention are as follows:
example 1
A flexographic water-based red ink composition comprises the following components in percentage by mass: 24.2% of deionized water, 21.3% of absolute ethyl alcohol, 19.2% of styrene acrylic acid copolymer, 0.22% of defoaming agent, 14.6% of kaolin and 20.48% of iron oxide red, wherein the defoaming agent is octamethylcyclotetrasiloxane.
The invention also provides a preparation method of the flexographic water-based red ink composition, which comprises the following steps:
s1: preparing materials: the method comprises the steps of purchasing deionized water, absolute ethyl alcohol, styrene acrylic copolymer, a defoaming agent, kaolin and iron oxide red outside, storing the deionized water, the absolute ethyl alcohol, the styrene acrylic copolymer and the defoaming agent in corresponding sealed tanks respectively, storing the kaolin and the iron oxide red in corresponding warehouses, placing the sealed tanks storing the deionized water, the absolute ethyl alcohol, the styrene acrylic copolymer and the defoaming agent separately, and enabling the distance between each group of sealed tanks to be 55 m.
S2: drying: and (4) respectively taking out the kaolin and the iron oxide red from the warehouse in the step S1, respectively placing the kaolin and the iron oxide red in a drying kettle for drying for 20min at the drying temperature of 75 ℃, and continuously stirring in the drying process so as to break up the part of the kaolin and the iron oxide red bonded by water absorption.
S3: grinding: and (4) grinding the kaolin and the iron oxide red obtained in the step (S2) respectively through corresponding grinding machines to obtain kaolin powder and iron oxide red powder.
S4: screening: and (4) respectively conveying the kaolin and the iron oxide red dried in the step (S2) to two groups of different sieving machines, respectively sieving the kaolin powder and the iron oxide red powder by using the two groups of sieving machines, controlling the discharge particle size of the kaolin powder to be 1 mu m, controlling the discharge particle size of the iron oxide red powder to be 2 mu m, and returning the kaolin powder and the iron oxide red powder which do not pass through the sieving machines in the step (S3) to continuously grind.
S5: weighing: and (4) weighing the deionized water, the absolute ethyl alcohol, the styrene acrylic acid copolymer and the defoaming agent in the step S1 according to corresponding mass percentages, and weighing the kaolin and the iron oxide red with the particle sizes meeting the requirements in the step S4 according to corresponding mass percentages.
S6: preliminary mixing: and (4) adding the deionized water, the absolute ethyl alcohol and the styrene acrylic acid copolymer weighed in the step (S5) into a proportioning cylinder, and uniformly stirring, wherein the stirring speed of a stirrer is 40 r/min.
S7: preparing a red ink composition: and (5) reducing the stirring speed of the step S6 to 10r/min, adding the defoaming agent, the kaolin and the iron oxide red weighed in the step S5 into a dosing cylinder, and stirring for 45min to obtain the flexographic aqueous red ink composition.
S8: packaging: and (4) filling the composition obtained in the step (S7) by an automatic filling machine according to the specification of 10kg per barrel, wherein the automatic filling machine is a DGS series automatic filling machine, and the atmospheric humidity of a filling workshop is 5% and the temperature is 32 ℃.
In the steps S6 and S7, the stirrer is a ZSH series stirrer, and the stirring motor of the stirrer is a variable frequency motor.
Example 2
A flexographic water-based red ink composition comprises the following components in percentage by mass: 24.8% of deionized water, 20% of absolute ethyl alcohol, 20% of styrene acrylic acid copolymer, 0.2% of defoaming agent, 15% of kaolin and 20% of iron oxide red, wherein the defoaming agent is octamethylcyclotetrasiloxane.
The invention also provides a preparation method of the flexographic water-based red ink composition, which comprises the following steps:
s1: preparing materials: the method comprises the steps of purchasing deionized water, absolute ethyl alcohol, styrene acrylic copolymer, a defoaming agent, kaolin and iron oxide red, storing the deionized water, the absolute ethyl alcohol, the styrene acrylic copolymer and the defoaming agent in corresponding sealed tanks respectively, storing the kaolin and the iron oxide red in corresponding warehouses, placing the sealed tanks storing the deionized water, the absolute ethyl alcohol, the styrene acrylic copolymer and the defoaming agent separately, and enabling the distance between each group of sealed tanks to be 60 m.
S2: drying: and (4) respectively taking out the kaolin and the iron oxide red from the warehouse in the step S1, respectively placing the kaolin and the iron oxide red in a drying kettle for drying for 25min at the drying temperature of 65 ℃, and continuously stirring in the drying process so as to break up the part of the kaolin and the iron oxide red bonded by water absorption.
S3: grinding: and (4) grinding the kaolin and the iron oxide red obtained in the step (S2) respectively through corresponding grinding machines to obtain kaolin powder and iron oxide red powder.
S4: screening: and (4) respectively conveying the kaolin and the iron oxide red dried in the step (S2) to two groups of different sieving machines, respectively sieving the kaolin powder and the iron oxide red powder by using the two groups of sieving machines, controlling the discharge particle size of the kaolin powder to be 3 mu m, controlling the discharge particle size of the iron oxide red powder to be 3 mu m, and returning the kaolin powder and the iron oxide red powder which do not pass through the sieving machines in the step (S3) to continuously grind.
S5: weighing: and (4) weighing the deionized water, the absolute ethyl alcohol, the styrene acrylic acid copolymer and the defoaming agent in the step S1 according to corresponding mass percentages, and weighing the kaolin and the iron oxide red with the particle sizes meeting the requirements in the step S4 according to corresponding mass percentages.
S6: preliminary mixing: and (4) adding the deionized water, the absolute ethyl alcohol and the styrene acrylic acid copolymer weighed in the step (S5) into a proportioning cylinder, and uniformly stirring, wherein the stirring speed of a stirrer is 30 r/min.
S7: preparing a red ink composition: and (5) reducing the stirring speed of the step S6 to 15r/min, adding the defoaming agent, the kaolin and the iron oxide red weighed in the step S5 into a dosing cylinder, and stirring for 40min to obtain the flexographic aqueous red ink composition.
S8: packaging: and (4) filling the composition obtained in the step (S7) by an automatic filling machine according to the specification of 25kg per barrel, wherein the automatic filling machine is a DGS series automatic filling machine, and the atmospheric humidity of a filling workshop is 6% and the temperature is 28 ℃.
In the steps S6 and S7, the stirrer is a ZSH series stirrer, and the stirring motor of the stirrer is a variable frequency motor.
Example 3
A flexographic water-based red ink composition comprises the following components in percentage by mass: 25.4% of deionized water, 18.75% of absolute ethyl alcohol, 20.6% of styrene acrylic acid copolymer, 0.19% of defoaming agent, 15.4% of kaolin and 19.66% of iron oxide red, wherein the defoaming agent is octamethylcyclotetrasiloxane.
The invention also provides a preparation method of the flexographic water-based red ink composition, which comprises the following steps:
s1: preparing materials: the method comprises the steps of purchasing deionized water, absolute ethyl alcohol, styrene acrylic copolymer, a defoaming agent, kaolin and iron oxide red outside, storing the deionized water, the absolute ethyl alcohol, the styrene acrylic copolymer and the defoaming agent in corresponding sealed tanks respectively, storing the kaolin and the iron oxide red in corresponding warehouses, placing the sealed tanks storing the deionized water, the absolute ethyl alcohol, the styrene acrylic copolymer and the defoaming agent separately, and enabling the distance between each group of sealed tanks to be 65 m.
S2: drying: and (4) respectively taking out the kaolin and the iron oxide red from the warehouse in the step S1, respectively placing the kaolin and the iron oxide red in a drying kettle for drying for 30min at the drying temperature of 50 ℃, and continuously stirring in the drying process so as to break up the part of the kaolin and the iron oxide red bonded by water absorption.
S3: grinding: and (4) grinding the kaolin and the iron oxide red obtained in the step (S2) respectively through corresponding grinding machines to obtain kaolin powder and iron oxide red powder.
S4: screening: and (4) respectively conveying the kaolin and the iron oxide red dried in the step (S2) to two groups of different sieving machines, respectively sieving the kaolin powder and the iron oxide red powder by using the two groups of sieving machines, controlling the discharge particle size of the kaolin powder to be 5 microns, controlling the discharge particle size of the iron oxide red powder to be 5 microns, and returning the kaolin powder and the iron oxide red powder which do not pass through the sieving machines in the step (S3) to continuously grind.
S5: weighing: and (4) weighing the deionized water, the absolute ethyl alcohol, the styrene acrylic acid copolymer and the defoaming agent in the step S1 according to corresponding mass percentages, and weighing the kaolin and the iron oxide red with the particle sizes meeting the requirements in the step S4 according to corresponding mass percentages.
S6: preliminary mixing: and (4) adding the deionized water, the absolute ethyl alcohol and the styrene acrylic acid copolymer weighed in the step (S5) into a proportioning cylinder, and uniformly stirring, wherein the stirring speed of a stirrer is 20 r/min.
S7: preparing a red ink composition: and (5) reducing the stirring speed of the step S6 to 20r/min, adding the defoaming agent, the kaolin and the iron oxide red weighed in the step S5 into a dosing cylinder, and stirring for 30min to obtain the flexographic aqueous red ink composition.
S8: packaging: and (4) filling the composition obtained in the step (S7) by an automatic filling machine according to the specification of 50kg per barrel, wherein the automatic filling machine is a DGS series automatic filling machine, and the atmospheric humidity of a filling workshop is 8% and the temperature is 20 ℃.
In the steps S6 and S7, the stirrer is a ZSH series stirrer, and the stirring motor of the stirrer is a variable frequency motor.
The performance parameter test data of the aqueous red ink compositions prepared in examples 1-3 of the present invention are shown in the following table:
in summary, the following steps: the flexographic aqueous red ink composition disclosed by the invention is composed of deionized water, absolute ethyl alcohol, a styrene acrylic copolymer, a defoaming agent, kaolin and iron oxide red, and all the used components meet the regulations in the list of substances permitted for cigarette materials YQ-2012. The styrene acrylic copolymer is used as a carrier of pigment and filler, so that the adhesive force of the red ink on paper is improved. Without the adhesion promoter, the tinting strength was not reduced compared to CN 201210481323.8. The kaolin is used as the functional filler of the composition, and has the advantages of chemical inertness, ideal flow property and low cost; the iron oxide red with the registration number of 1332-37-2 of the chemical abstracts has the advantages of strong ultraviolet absorption performance, light resistance and excellent atmospheric resistance.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (6)
1. A flexographic aqueous red ink composition characterized by: the components by mass percent are as follows: 24.2 to 25.4 percent of deionized water, 18.7 to 21.3 percent of absolute ethyl alcohol, 19.2 to 20.6 percent of styrene acrylic acid copolymer, 0.18 to 0.22 percent of defoaming agent, 14.6 to 15.4 percent of kaolin and 19.5 to 20.5 percent of iron oxide red.
2. The flexographic aqueous red ink composition according to claim 1, wherein: the defoaming agent is octamethylcyclotetrasiloxane.
3. A method for preparing the flexographic aqueous red ink composition of claim 1, comprising: the method comprises the following steps:
s1: preparing materials: preparing deionized water, absolute ethyl alcohol, styrene acrylic copolymer, a defoaming agent, kaolin and iron oxide red;
s2: drying: respectively placing kaolin and iron oxide red in a drying kettle to dry for 20min-30min, and continuously stirring in the drying process to break up the kaolin and the iron oxide red due to water absorption and bonding;
s3: grinding: grinding the kaolin and the iron oxide red obtained in the step S2 respectively to obtain kaolin powder and iron oxide red powder;
s4: screening: respectively conveying the kaolin and the iron oxide red ground in the step S3 to two groups of different sieving machines, respectively sieving the kaolin powder and the iron oxide red powder by using the two groups of sieving machines, controlling the discharge particle size of the kaolin powder to be between 1 and 5 mu m, controlling the discharge particle size of the iron oxide red powder to be between 1 and 5 mu m, and returning the kaolin powder and the iron oxide red powder which do not pass through the sieving to the step S3 for continuous grinding;
s5: weighing: weighing the deionized water, the absolute ethyl alcohol, the styrene acrylic acid copolymer and the defoaming agent in the step S1 according to corresponding mass percentages, and weighing the kaolin and the iron oxide red with the particle sizes meeting the requirements in the step S4 according to corresponding mass percentages;
s6: preliminary mixing: adding the deionized water, the absolute ethyl alcohol and the styrene acrylic acid copolymer weighed in the step S5 into a proportioning cylinder, and uniformly stirring, wherein the stirring speed of a stirrer is 20-40 r/min;
s7: preparing a red ink composition: reducing the stirring speed of the step S6 to 10r/min-20r/min, adding the defoaming agent, kaolin and iron oxide red weighed in the step S5 into a batching cylinder, and stirring for 30min-45min to prepare the flexographic aqueous red ink composition;
s8: packaging: the composition obtained in step S7 is filled by an automatic filling machine.
4. The method of claim 3, wherein the method comprises the steps of: in the step S2, the drying temperature is 50-75 ℃.
5. The method of claim 3, wherein the method comprises the steps of: in the steps S6 and S7, the stirrer is a ZSH series stirrer, and the stirring motor of the stirrer is a variable frequency motor.
6. The method of claim 3, wherein the method comprises the steps of: in step S8, the automatic filling machine is a DGS series automatic filling machine.
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| CN111925687A (en) * | 2020-09-27 | 2020-11-13 | 湖北淡雅香生物科技股份有限公司 | Color-optimized flexo-printing environment-friendly tipping paper water-based ink and preparation method thereof |
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| 林宗寿: "《水泥工艺学》", 31 December 2012, 武汉理工大学出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111925687A (en) * | 2020-09-27 | 2020-11-13 | 湖北淡雅香生物科技股份有限公司 | Color-optimized flexo-printing environment-friendly tipping paper water-based ink and preparation method thereof |
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