CN111471352A - Gradient printing ink and gradient printing method - Google Patents
Gradient printing ink and gradient printing method Download PDFInfo
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- CN111471352A CN111471352A CN202010436525.5A CN202010436525A CN111471352A CN 111471352 A CN111471352 A CN 111471352A CN 202010436525 A CN202010436525 A CN 202010436525A CN 111471352 A CN111471352 A CN 111471352A
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- ink
- printing ink
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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
- C09D11/50—Sympathetic, colour changing or similar inks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M1/00—Inking and printing with a printer's forme
- B41M1/12—Stencil printing; Silk-screen printing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M7/00—After-treatment of prints, e.g. heating, irradiating, setting of the ink, protection of the printed stock
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M7/00—After-treatment of prints, e.g. heating, irradiating, setting of the ink, protection of the printed stock
- B41M7/009—After-treatment of prints, e.g. heating, irradiating, setting of the ink, protection of the printed stock using thermal means, e.g. infrared radiation, heat
-
- 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
- C09D11/102—Printing inks based on artificial resins containing macromolecular compounds obtained by reactions other than those only involving unsaturated carbon-to-carbon bonds
Abstract
The invention discloses a gradient printing ink which is characterized by comprising the following components in parts by weight: 40-60 parts of fluorescent ink; 30-50 parts of curing resin; 5-15 parts of a solvent. The fluorescent ink comprises the following components in parts by weight: 4-6 parts of yellow fluorescent powder particles with the particle size of 20-25 mu m; 3-5 parts of red fluorescent powder particles with the particle size of 20-25 mu m; 4-6 parts of 20-25 mu m green fluorescent powder particles; 25-35 parts of high-transparency resin; 1-3 parts of a diluent; 1-3 parts of a curing agent. The invention also provides a preparation method and a printing method of the gradient printing ink. The gradient printing ink disclosed by the invention has the advantages of sufficient bonding performance, sufficient firmness and wear resistance, good cracking prevention and transfer effects and obvious gradient effect. Meanwhile, the gradual change printing method of the gradual change printing ink provided by the invention has the advantages of simple whole process, no need of a large amount of manual operation, low cost and good gradual change appearance effect.
Description
Technical Field
The invention belongs to the technical field of ink, and particularly relates to gradient printing ink and a gradient printing method.
Background
In order to improve the visual effect of the liquid crystal display, a common method in the prior art is to form a gradient effect on the surface, while the methods for forming the gradient effect on the surface are generally divided into spraying and printing, wherein the spraying method needs special spraying and painting equipment, the cost is high, and the printing method is difficult to implement for general users.
Gradual change printing ink among the prior art exists more or less that adhesive property is not enough, and firmness, abrasion resistance are not enough, and the crack control degree is not enough, and the printing ink shifts the effect not good enough, and gradual change effect subalternation problem. In the prior art, the printing method mostly adopts screen printing with gradually changed screen points, a film and a screen printing plate are required to be printed, the gradually changed multicolor printing is finished by printing for multiple times, and a drying procedure is required after each printing, so that the whole procedure is extremely complicated, and a large amount of manual operation and cost are consumed; and when the conventional screen printing of the mesh points is large in area or large in quantity, the mesh points often have the problem of dry net, so that the gradual transition is not uniform, the formed mesh points can be seen visually in gradual transition, the transition is not natural, and the gradual appearance effect is greatly influenced.
The Chinese patent with application number 201410768411.5 discloses a process for surface gradient printing, which mainly comprises the following steps: 1) diluting the printing ink, namely respectively diluting the printing ink with at least two different colors; 2) performing network blending, namely introducing the diluted at least two inks with different colors into a blank screen printing plate, and arranging the inks in a row according to a gradual change sequence, wherein a stacked layer formed by overlapping the two inks is formed between every two adjacent inks with different colors; 3) mixing colors of the stacked layers, namely, completely mixing and mixing colors of the printing ink of the stacked layers by adopting a silica gel scraper until the colors are uniformly mixed; 4) and printing the gradually changed ink layer on the printing stock by using the blank screen printing plate and the uniformly-color-mixed ink on the blank screen printing plate. The invention adopts non-dot-gradation screen printing, the manufacturing process is simple and effective, and the obtained product has the effect of very uniform transition and natural dot-gradation-free effect; however, the special gradient ink is not used, and at least two kinds of inks with different salt colors are directly diluted, so that the gradient effect is influenced, and the printing quality needs to be further improved.
Therefore, the search for the gradient printing ink and the gradient printing method with better comprehensive performance and better gradient effect is a great need, and has very important significance for promoting the development of the gradient printing industry.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide the gradient printing ink which has the advantages of sufficient bonding performance, sufficient firmness and wear resistance, good cracking resistance and transfer effect and obvious gradient effect. Meanwhile, the invention also provides a gradual change printing method of the gradual change printing ink, and the printing method has the advantages of simple whole process, no need of a large amount of manual operation, low cost and good gradual change appearance effect.
In order to achieve the purpose, the invention adopts the technical scheme that: the gradient printing ink is characterized by comprising the following components in parts by weight:
40-60 parts of fluorescent ink;
30-50 parts of curing resin;
5-15 parts of a solvent.
The fluorescent ink comprises the following components in parts by weight:
preferably, the high transparent resin is bisphenol a type epoxy resin.
Preferably, the diluent is at least one of acetone, methyl ethyl ketone, cyclohexanone and n-butanol.
Preferably, the curing agent is at least one of 2, 2-bis [4- (4-aminophenoxy) phenyl ] -1,1,1,3,3, 3-hexafluoropropane, laurylamine dipropylenediamine, 1, 8-octanediamine, and 2, 4-amino-6-methoxy-1, 3, 5-triazine.
Preferably, the curing resin is at least one of amino-terminated polyurethane, amino-modified polydimethylsiloxane and amino resin.
Preferably, the solvent is any one of toluene, butanediol, diethyl ether and cyclohexanone.
Another object of the present invention is to provide a method for preparing the gradient printing ink, which comprises the following steps: the components are uniformly mixed according to the parts by weight, and then are subjected to ultrasonic treatment for 10-20 minutes and then are stirred for 2-4 hours at the temperature of 40-60 ℃ to obtain the gradient printing ink.
Another object of the present invention is to provide a method for gradient printing of the gradient printing ink, comprising the steps of: printing a gradient printing ink layer on a printing stock by the gradient printing ink: adjusting the screen printing speed and the screen printing pressure, enabling a printing stock to be positioned below a blank screen printing plate and have a distance of 2-6mm, enabling two ends of the length of a printing silica gel scraper to be respectively longer than the size of a printed product by 40-60mm, and enabling a scraper to keep an inclination angle of 45-55 degrees with the screen surface of the blank screen printing plate; after printing, quickly sending the ink to a drawing drying tunnel for surface drying so as to prevent sundries from falling on the ink layer, wherein the curing time is 20-40 minutes, and the temperature of an oven is controlled at 63-67 ℃; and then cutting the mixture by a die to obtain a finished product.
Preferably, the angle of the cutting edge of the die is 30 degrees, and the height of the knife is 1.5-1.8 mm.
Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages: the invention provides the gradient printing ink which has the advantages of sufficient bonding performance, sufficient firmness and wear resistance, good cracking prevention and transfer effects and obvious gradient effect. Meanwhile, the invention also provides a gradual change printing method of the gradual change printing ink, and the printing method has the advantages of simple whole process, no need of a large amount of manual operation, low cost and good gradual change appearance effect.
Detailed Description
The following detailed description of preferred embodiments of the invention will be made.
The gradient printing ink is characterized by comprising the following components in parts by weight:
40-60 parts of fluorescent ink;
30-50 parts of curing resin;
5-15 parts of a solvent.
The fluorescent ink comprises the following components in parts by weight:
the yellow phosphor particles, the red phosphor particles, and the green phosphor particles used in the examples of the present invention are commercially available (available from quanzhou national bright chemical co., ltd., for use in the following specific examples).
Preferably, the high transparent resin is bisphenol a type epoxy resin.
Preferably, the diluent is at least one of acetone, methyl ethyl ketone, cyclohexanone and n-butanol.
Preferably, the curing agent is at least one of 2, 2-bis [4- (4-aminophenoxy) phenyl ] -1,1,1,3,3, 3-hexafluoropropane, laurylamine dipropylenediamine, 1, 8-octanediamine, and 2, 4-amino-6-methoxy-1, 3, 5-triazine.
Preferably, the curing resin is at least one of amino-terminated polyurethane, amino-modified polydimethylsiloxane and amino resin.
Preferably, the solvent is any one of toluene, butanediol, diethyl ether and cyclohexanone.
Another object of the present invention is to provide a method for preparing the gradient printing ink, which comprises the following steps: the components are uniformly mixed according to the parts by weight, and then are subjected to ultrasonic treatment for 10-20 minutes and then are stirred for 2-4 hours at the temperature of 40-60 ℃ to obtain the gradient printing ink.
Another object of the present invention is to provide a method for gradient printing of the gradient printing ink, comprising the steps of: printing a gradient printing ink layer on a printing stock by the gradient printing ink: adjusting the screen printing speed and the screen printing pressure, enabling a printing stock to be positioned below a blank screen printing plate and have a distance of 2-6mm, enabling two ends of the length of a printing silica gel scraper to be respectively longer than the size of a printed product by 40-60mm, and enabling a scraper to keep an inclination angle of 45-55 degrees with the screen surface of the blank screen printing plate; after printing, quickly sending the ink to a drawing drying tunnel for surface drying so as to prevent sundries from falling on the ink layer, wherein the curing time is 20-40 minutes, and the temperature of an oven is controlled at 63-67 ℃; and then cutting the mixture by a die to obtain a finished product.
Preferably, the angle of the cutting edge of the die is 30 degrees, and the height of the knife is 1.5-1.8 mm.
Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages: the invention provides the gradient printing ink which has the advantages of sufficient bonding performance, sufficient firmness and wear resistance, good cracking prevention and transfer effects and obvious gradient effect. Meanwhile, the invention also provides a gradual change printing method of the gradual change printing ink, and the printing method has the advantages of simple whole process, no need of a large amount of manual operation, low cost and good gradual change appearance effect.
The invention will be further described with reference to specific examples, but the scope of protection of the invention is not limited thereto:
example 1
Embodiment 1 provides a gradient printing ink, which is characterized by comprising the following components in parts by weight:
40 parts of fluorescent ink;
30 parts of curing resin;
and 5 parts of a solvent.
The fluorescent ink comprises the following components in parts by weight:
the high-transparency resin is bisphenol A type epoxy resin; the diluent is acetone; the curing agent is 2, 2-bis [4- (4-aminophenoxy) phenyl ] -1,1,1,3,3, 3-hexafluoropropane; the solidified resin is amino-terminated polyurethane; the solvent is toluene.
The preparation method of the gradient printing ink is characterized by comprising the following steps of: the components are uniformly mixed according to the parts by weight, and then are subjected to ultrasonic treatment for 10 minutes and then are stirred for 2 hours at the temperature of 40 ℃ to obtain the gradient printing ink.
The gradual change printing method of the gradual change printing ink is characterized by comprising the following steps: printing a gradient printing ink layer on a printing stock by the gradient printing ink: adjusting the screen printing speed and the screen printing pressure, enabling a printing stock to be below the blank screen printing plate and be 2mm away from the blank screen printing plate, enabling two ends of the length of a printing silica gel scraper to be respectively longer than the size of a printed product by 40mm, and enabling the scraper to keep an inclination angle of 45 degrees with the screen surface of the blank screen printing plate; after printing, quickly sending the ink into a drawing drying tunnel to be dried on the surface so as to prevent sundries from falling on the ink layer, wherein the curing time is 20 minutes, and the temperature of an oven is controlled at 63 ℃; then cutting the mixture by a die to obtain a finished product; the angle of the blade cut by the die is 30 degrees, and the height of the blade is 1.5 mm.
Example 2
Example 2 provides a gradient printing ink having substantially the same formulation and printing method as in example 1, except that it comprises the following components in parts by weight:
45 parts of fluorescent ink;
35 parts of curing resin;
and 8 parts of a solvent.
The fluorescent ink comprises the following components in parts by weight:
example 3
Example 3 provides a gradient printing ink having substantially the same formulation and printing method as in example 1, except that it comprises the following components in parts by weight:
50 parts of fluorescent ink;
40 parts of curing resin;
10 parts of a solvent.
The fluorescent ink comprises the following components in parts by weight:
example 4
Example 4 provides a gradient printing ink having substantially the same formulation and printing method as in example 1, except that it comprises the following components in parts by weight:
55 parts of fluorescent ink;
45 parts of curing resin;
13 parts of a solvent.
The fluorescent ink comprises the following components in parts by weight:
example 5
Example 5 provides a gradient printing ink having substantially the same formulation and printing method as in example 1, except that it comprises the following components in parts by weight:
60 parts of fluorescent ink;
50 parts of curing resin;
and 15 parts of a solvent.
The fluorescent ink comprises the following components in parts by weight:
comparative example 1
Comparative example 1 provides a gradient printing ink having substantially the same formulation and printing method as example 1, except that the fluorescent ink was 30 parts.
Comparative example 2
Comparative example 1 a gradient printing ink was provided having substantially the same formulation and printing method as in example 1, except that the cured resin was 20 parts.
Comparative example 3
Comparative example 3 provides a gradation printing ink whose formulation and printing method are substantially the same as those of example 1 except that the highly transparent resin is 20 parts.
Product performance testing of the above examples and comparative examples:
(1) viscosity: according to the standard GB/T10247-2008;
(2) tensile strength, elongation at break: (ii) a A. Uniformly mixing the component B, performing vacuum defoaming, uniformly coating on a mold with the thickness of 2mm, and performing ultraviolet curing for 40 minutes and then testing according to GB/T528-Bufonic 2009;
(3) hardness: testing the Shore A hardness according to GB/T531-2008;
(4) gradual change effect: visual inspection; the test results are shown in table 1:
TABLE 1
| Item | Viscosity (mPa.s) | Hardness (ShoreA) | Tensile Strength (MPa) |
| Example 1 | 2350 | 82 | 4.8 |
| Example 2 | 2380 | 84 | 5.0 |
| Example 3 | 2320 | 85 | 5.1 |
| Example 4 | 2330 | 87 | 5.3 |
| Example 5 | 2300 | 88 | 5.6 |
| Comparative example 1 | 2400 | 77 | 4.3 |
| Comparative example 2 | 2430 | 78 | 4.1 |
| Comparative example 3 | 2420 | 76 | 4.0 |
As can be seen from the table above, the gradient printing ink disclosed by the embodiment of the invention has better fluidity and mechanical property, and meets the use requirement of the gradient printing ink.
The above-mentioned embodiments are merely illustrative of the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the content of the present invention and implement the invention, and not to limit the scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention should be covered by the scope of the present invention.
Claims (9)
1. The gradient printing ink is characterized by comprising the following components in parts by weight:
40-60 parts of fluorescent ink;
30-50 parts of curing resin;
5-15 parts of a solvent;
the fluorescent ink comprises the following components in parts by weight:
4-6 parts of yellow fluorescent powder particles with the particle size of 20-25 mu m;
3-5 parts of red fluorescent powder particles with the particle size of 20-25 mu m;
4-6 parts of 20-25 mu m green fluorescent powder particles;
25-35 parts of high-transparency resin;
1-3 parts of a diluent;
1-3 parts of a curing agent.
2. The gradient printing ink as claimed in claim 1, wherein the high transparent resin is bisphenol a type epoxy resin.
3. A gradient printing ink as claimed in claim 1, characterised in that said diluent is at least one of acetone, methyl ethyl ketone, cyclohexanone, n-butanol.
4. A gradient printing ink as claimed in claim 1 wherein the curing agent is at least one of 2, 2-bis [4- (4-aminophenoxy) phenyl ] -1,1,1,3,3, 3-hexafluoropropane, laurylamine dipropylenediamine, 1, 8-octanediamine, 2, 4-amino-6-methoxy-1, 3, 5-triazine.
5. The gradient printing ink as claimed in claim 1, wherein the cured resin is at least one of amino-terminated polyurethane, amino-modified polydimethylsiloxane and amino resin.
6. A gradient printing ink as claimed in claim 1, wherein the solvent is any one of toluene, butanediol, diethyl ether and cyclohexanone.
7. A gradient printing ink according to any one of claims 1 to 6, characterised in that it is prepared by a process comprising the following steps: the components are uniformly mixed according to the parts by weight, and then are subjected to ultrasonic treatment for 10-20 minutes and then are stirred for 2-4 hours at the temperature of 40-60 ℃ to obtain the gradient printing ink.
8. A method of gradient printing of a gradient printing ink according to any one of claims 1 to 6, characterised in that it comprises the following steps: printing a gradient printing ink layer on a printing stock by the gradient printing ink: adjusting the screen printing speed and the screen printing pressure, enabling a printing stock to be positioned below a blank screen printing plate and have a distance of 2-6mm, enabling two ends of the length of a printing silica gel scraper to be respectively longer than the size of a printed product by 40-60mm, and enabling a scraper to keep an inclination angle of 45-55 degrees with the screen surface of the blank screen printing plate; after printing, quickly sending the ink to a drawing drying tunnel for surface drying so as to prevent sundries from falling on the ink layer, wherein the curing time is 20-40 minutes, and the temperature of an oven is controlled at 63-67 ℃; and then cutting the mixture by a die to obtain a finished product.
9. The gradient printing ink of claim 8, wherein the die cuts a blade angle of 30 degrees and a blade height of 1.5-1.8 mm.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010436525.5A CN111471352A (en) | 2020-05-21 | 2020-05-21 | Gradient printing ink and gradient printing method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010436525.5A CN111471352A (en) | 2020-05-21 | 2020-05-21 | Gradient printing ink and gradient printing method |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1039259A (en) * | 1988-07-14 | 1990-01-31 | 沈阳市和平市政工程公司 | A kind of luminescent powder |
| CN1282093A (en) * | 1999-07-27 | 2001-01-31 | 利兆忠 | Multi-colour fluorescent powder coating process for light tube |
| CN101042569A (en) * | 2007-04-02 | 2007-09-26 | 陈笠 | Variable fluorescent color wristwatch and printing method of fluorescent color |
| CN101916816A (en) * | 2010-07-09 | 2010-12-15 | 电子科技大学 | Light-emitting diode and preparation method thereof |
| CN107955428A (en) * | 2017-12-21 | 2018-04-24 | 温州维特利颜料科技有限公司 | A kind of formula and manufacturing process of color luminous pigment |
-
2020
- 2020-05-21 CN CN202010436525.5A patent/CN111471352A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1039259A (en) * | 1988-07-14 | 1990-01-31 | 沈阳市和平市政工程公司 | A kind of luminescent powder |
| CN1282093A (en) * | 1999-07-27 | 2001-01-31 | 利兆忠 | Multi-colour fluorescent powder coating process for light tube |
| CN101042569A (en) * | 2007-04-02 | 2007-09-26 | 陈笠 | Variable fluorescent color wristwatch and printing method of fluorescent color |
| CN101916816A (en) * | 2010-07-09 | 2010-12-15 | 电子科技大学 | Light-emitting diode and preparation method thereof |
| CN107955428A (en) * | 2017-12-21 | 2018-04-24 | 温州维特利颜料科技有限公司 | A kind of formula and manufacturing process of color luminous pigment |
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Address after: No.688 pangjin Road, Wujiang Economic and Technological Development Zone, Suzhou, Jiangsu Province, 215000 Applicant after: JIANGSU DIMOSI TECHNOLOGY Co.,Ltd. Address before: 215151 Jiangsu city of Suzhou province high tech Zone Shi Yang Road 19 Applicant before: JIANGSU DIMOSI TECHNOLOGY Co.,Ltd. |