CN112111192A - Flexible printing UV-LED ink and preparation method thereof - Google Patents
Flexible printing UV-LED ink and preparation method thereof Download PDFInfo
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- CN112111192A CN112111192A CN201910531058.1A CN201910531058A CN112111192A CN 112111192 A CN112111192 A CN 112111192A CN 201910531058 A CN201910531058 A CN 201910531058A CN 112111192 A CN112111192 A CN 112111192A
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Classifications
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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
- C09D11/101—Inks specially adapted for printing processes involving curing by wave energy or particle radiation, e.g. with UV-curing following the printing
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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
Abstract
The invention discloses a flexo printing UV-LED ink and a preparation method thereof. The invention discloses a flexo printing UV-LED ink which comprises the following components in parts by weight: the paint comprises, by weight, 30-40 parts of prepolymer A, 35-45 parts of monomer B, 4-6 parts of pigment, 5-7 parts of photoinitiator and 1-3 parts of auxiliary agent. The flexible printing UV-LED ink prepared by the invention has the advantages of small viscosity, high curing speed, high color strength and good printability; can be applied to the fields of printing, packaging, labels and the like, and has little harm to the environment and human bodies.
Description
Technical Field
The invention relates to the field of printing ink, in particular to flexo printing UV-LED printing ink and a preparation method thereof.
Background
With the rapid development of global economy and the increase of human material level. The environment problem is also outstanding when people enjoy fast-paced life, and the 'both Jinshan Yinshan and Lushui Qingshan' become the pursuit targets of people. Therefore, the popularization and application of the environment-friendly packaging printing mode become the inevitable development trend of printing packaging. Because the flexo printing structure is simple and belongs to a green printing mode, the flexo printing becomes an environment-friendly substitute term in the printing industry, and the characteristic of the flexo printing makes the flexo printing become one of the most widely applied printing modes in the printing industry.
There are many types of flexographic inks, including mainly the following: water-based ink, solvent-based ink and Ultraviolet (UV) curing ink, wherein the main application of the solvent-based ink is non-absorptive plastic film printing; the water-based ink is mainly used for printing materials such as newspapers, corrugated boards, paperboard and the like; the UV ink has wide application, and has good printing effect on materials such as plastic films, paper, metal foils and the like. The use of solvents in the printing industry results in lower VOC emissions, another more sustainable ink is aqueous and UV curable inks. The UV ink has the characteristics of environmental friendliness, high efficiency, good printing quality, strong adaptability and the like, is a novel environment-friendly ink which is very popular and has high attention, and has a very good development prospect. The application range of the flexible printing UV ink in packaging and printing is wide. The UV flexo printing ink has obvious advantages in the aspects of environmental protection, quality, technical development and the like, and the development prospect is very optimistic. However, since the main components of the UV-light source are composed of mercury element lamps, the mercury lamp has short service life and large power consumption, a large amount of heat energy is emitted in the curing process to cause the printing material to be heated and deformed, and the mercury lamp causes heavy metal pollution to the environment. Compared with a UV light source, the UV-LED light source has the advantages of high efficiency, no harm to the environment and the like, and the UV-LED light source is long in service life, less in heat dissipation and more environment-friendly. UV-LED light sources have begun to replace conventional UV lamps in view of some of the drawbacks of UV light sources.
The flexible printing UV-LED curing mode is mainly applied to the aspects of paper, plastic films, self-adhesive labels and the like. The environment has the advantages of no odor and ozone emission, energy conservation, environmental protection, long service life, small volume and the like; the production efficiency can be improved in the aspect of business, the method can be conveniently used for short-term delivery, and the method has the advantages of high utilization value and the like; the quality of the printed matter can be greatly improved. Therefore, the preparation of UV-LED curing ink suitable for flexography becomes the key point of flexography ink development. At present, the problems of high viscosity, low curing efficiency and the like still exist in the flexible printing UV-LED ink, so that the research on the curing speed of the flexible printing UV-LED ink is a very critical problem, and the problem of increasing the curing speed of the ink on the premise of ensuring the viscosity is a key and difficult problem of the research on the subject.
Disclosure of Invention
Aiming at the problems, the invention provides the flexo printing UV-LED ink and the preparation method thereof, which can effectively save the cost, greatly improve the printing quality and have no pollution to the environment.
The invention provides a flexo printing UV-LED ink which comprises the following components in parts by weight:
the prepolymer A is polyurethane acrylate or hyperbranched polyester acrylate, preferably hyperbranched polyester acrylate; the type of the prepolymer is a main factor influencing the viscosity of the ink;
the monomer B is hexanediol diacrylate;
the photoinitiator is phenyl bis (2,4, 6-trimethylbenzoyl) phosphorus oxide; the kind of photoinitiator is a main factor influencing the curing speed of the ink;
the pigment is quinacridone magenta pigment;
the auxiliary agent consists of a dispersing agent and a flatting agent according to the mass ratio of 1:1, wherein the dispersing agent is a CF-10 dispersing agent, and the flatting agent is a polyurethane RM2020 flatting agent.
The viscosity of the flexo printing UV-LED ink is 50-200mPa.s at 25 ℃.
The invention discloses a preparation method of a flexible printing UV-LED ink, which comprises the following specific steps:
(1) at room temperature, mixing the prepolymer A and the monomer B, uniformly stirring by using a glass rod, and heating and stirring for half an hour by using an 85-1A magnetic stirrer to obtain a connecting material;
(2) putting the weighed pigment into a grinding bowl for grinding to ensure that pigment particles are as small and uniform as possible;
(3) and (2) adding the ground pigment and the auxiliary agent into the prepared connecting material in the step (1), stirring for two hours by using a magnetic stirrer, adding the photoinitiator, and uniformly stirring to obtain the flexo printing UV-LED ink.
And (3) when stirring is carried out by using a magnetic stirrer in the step (3), firstly, the speed is set at a low level to prevent the printing ink from splashing in the stirring process, and the stirrer is adjusted to a high speed level after stirring for 10-30 min.
The invention has the beneficial effects that: the flexible printing UV-LED ink prepared by the invention has the advantages of small viscosity, high curing speed, high color strength and good printability; can be applied to the fields of printing, packaging, labels and the like, and has little harm to the environment and human bodies.
Detailed Description
The present invention will be further described with reference to the following examples.
Example 1
The flexo printing UV-LED ink comprises the following components in percentage by mass:
the auxiliary agent is formed by a CF-10 dispersing agent and a polyurethane RM2020 leveling agent according to the mass ratio of 1: 1.
Example 2
The flexo printing UV-LED ink comprises the following components in percentage by mass:
the auxiliary agent is formed by a CF-10 dispersing agent and a polyurethane RM2020 leveling agent according to the mass ratio of 1: 1.
Example 3
The flexo printing UV-LED ink comprises the following components in percentage by mass:
the auxiliary agent is formed by a CF-10 dispersing agent and a polyurethane RM2020 leveling agent according to the mass ratio of 1: 1.
Example 4
The flexo printing UV-LED ink comprises the following components in percentage by mass:
the auxiliary agent is formed by a CF-10 dispersing agent and a polyurethane RM2020 leveling agent according to the mass ratio of 1: 1.
Claims (5)
1. The flexo printing UV-LED ink is characterized by comprising the following components in parts by weight:
30-40 parts of prepolymer A
35-45 parts of monomer B
4-6 parts of pigment
5-7 parts of photoinitiator
1-3 parts of an auxiliary agent;
the prepolymer A is polyurethane acrylate or hyperbranched polyester acrylate;
the monomer B is hexanediol diacrylate;
the photoinitiator is phenyl bis (2,4, 6-trimethylbenzoyl) phosphorus oxide;
the pigment is quinacridone magenta pigment;
the auxiliary agent consists of a dispersing agent and a flatting agent according to the mass ratio of 1:1, wherein the dispersing agent is a CF-10 dispersing agent, and the flatting agent is a polyurethane RM2020 flatting agent.
2. The flexographic UV-LED ink according to claim 1, wherein said prepolymer A is a hyperbranched polyester acrylate.
3. The flexographic UV-LED ink according to claim 1, wherein said flexographic UV-LED ink has a viscosity of 50 to 200mPa.s at 25 ℃.
4. The method for preparing the flexographic UV-LED ink according to any one of claims 1 to 3, which is characterized by comprising the following specific steps:
(1) at room temperature, mixing the prepolymer A and the monomer B, uniformly stirring by using a glass rod, and heating and stirring for half an hour by using an 85-1A magnetic stirrer to obtain a connecting material;
(2) putting the weighed pigment into a grinding bowl for grinding to ensure that pigment particles are as small and uniform as possible;
(3) and (2) adding the ground pigment and the auxiliary agent into the prepared connecting material in the step (1), stirring for two hours by using a magnetic stirrer, adding the photoinitiator, and uniformly stirring to obtain the flexo printing UV-LED ink.
5. The method for preparing a UV-LED ink for flexography according to claim 4, wherein the magnetic stirrer is used for stirring in the step (3), the speed is firstly put at a low level, and the stirrer is adjusted to a high level after stirring for 10-30 min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910531058.1A CN112111192A (en) | 2019-06-19 | 2019-06-19 | Flexible printing UV-LED ink and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910531058.1A CN112111192A (en) | 2019-06-19 | 2019-06-19 | Flexible printing UV-LED ink and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112111192A true CN112111192A (en) | 2020-12-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910531058.1A Withdrawn CN112111192A (en) | 2019-06-19 | 2019-06-19 | Flexible printing UV-LED ink and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112111192A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114933825A (en) * | 2022-06-06 | 2022-08-23 | 美盈森集团股份有限公司 | Environment-friendly UV (ultraviolet) ink and preparation method thereof, printed water-soluble label and preparation method thereof |
| CN115851032A (en) * | 2022-12-23 | 2023-03-28 | 北京印刷学院 | Electroluminescent flexographic printing ink and preparation method thereof |
-
2019
- 2019-06-19 CN CN201910531058.1A patent/CN112111192A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114933825A (en) * | 2022-06-06 | 2022-08-23 | 美盈森集团股份有限公司 | Environment-friendly UV (ultraviolet) ink and preparation method thereof, printed water-soluble label and preparation method thereof |
| CN115851032A (en) * | 2022-12-23 | 2023-03-28 | 北京印刷学院 | Electroluminescent flexographic printing ink and preparation method thereof |
| CN115851032B (en) * | 2022-12-23 | 2023-12-22 | 北京印刷学院 | Electroluminescent flexographic printing ink and preparation method thereof |
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| Date | Code | Title | Description |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20201222 |