CN111942042A - Method for printing 3D effect refraction pattern by using flexography process - Google Patents
Method for printing 3D effect refraction pattern by using flexography process Download PDFInfo
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- CN111942042A CN111942042A CN202010867087.8A CN202010867087A CN111942042A CN 111942042 A CN111942042 A CN 111942042A CN 202010867087 A CN202010867087 A CN 202010867087A CN 111942042 A CN111942042 A CN 111942042A
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- printing
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- refraction
- base oil
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- 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
- B41M1/02—Letterpress printing, e.g. book printing
- B41M1/04—Flexographic printing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M3/00—Printing processes to produce particular kinds of printed work, e.g. patterns
- B41M3/14—Security printing
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- 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
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Abstract
The invention discloses a method for printing 3D effect refraction patterns by adopting a flexo printing process, which comprises the following steps of firstly selecting flexo printing base oil ink and flexo printing surface oil ink which can generate chemical reaction to generate an expansion effect; forming a refraction texture image file by using a refraction effect; then printing base oil ink on the surface of the mirror surface printing material by a flexography process according to the refraction texture image file; then surface oil ink is printed on the surface of the mirror surface printing material; finally, the base ink and the top ink are chemically reacted and expanded to the desired size. According to the invention, the flexible printing base oil ink and the flexible printing surface oil ink which can generate chemical reaction and generate the expansion effect are selected, and the refraction patterns are formed through the expansion effect of the base oil ink and the surface oil ink, so that the refraction patterns with the 3D effect are formed through the flexible printing process, the printing effect basically equivalent to that of the silk-screen printing process can be achieved, the plate-making cost is greatly reduced compared with that of the silk-screen printing process, the printing efficiency is effectively improved, and the application prospect is wide.
Description
Technical Field
The invention relates to the field of refraction pattern printing, in particular to a method for printing 3D effect refraction patterns by adopting a flexography process.
Background
With the improvement of living standard, the requirement of the current packaging box on the exquisite degree of the printing effect is higher and higher, and in addition, due to the continuous progress of science and technology, the anti-counterfeiting method needs to be continuously updated so as to be convenient for identifying counterfeit products. In order to achieve better visual effect and anti-counterfeiting effect, 3D refraction patterns are sometimes printed on the mirror surface printing material, and when a beam of light is reflected to the surface of the 3D refraction patterns through the mirror surface printing material, a part of light can be refracted. The 3D refraction pattern utilizes the refraction effect generated by the light reflection characteristic in the optical principle, and utilizes the mirror reflection principle and the refraction principle of light to embody the special decorative effect. Through different trends, thickness and interval of lines in the 3D refraction line, various center divergent type, rotary type or flowing type effects can be formed under the reflection and refraction effects of light, and therefore the stereoscopic impression of printed patterns is greatly improved. In addition, because the refraction lines are printed by colorless ink, scanning cannot be performed, the visual effect of the refraction lines is alternately displayed along with the change of four sides of the angle, the reproducing process is complex, simulation is difficult, and the anti-counterfeiting performance is high. The existing 3D fold plain lines are printed in a silk-screen printing mode, and the printing cost of the 3D fold plain lines is high due to the extremely high plate-making cost and the low printing efficiency of silk-screen printing.
Disclosure of Invention
The invention provides a method for printing 3D effect refraction patterns by adopting a flexography process.
The technical scheme of the invention is as follows:
a method for printing 3D effect refraction patterns by adopting a flexography process comprises the following steps:
step S1, selecting flexible printing base oil ink and flexible printing surface oil ink which can generate chemical reaction and generate swelling effect under the preset environment;
step S2, forming a refraction texture image file by using the refraction texture effect;
step S3, manufacturing a flexible resin plate of printing base oil according to the refraction texture image file, and manufacturing a base oil printing plate roller by taking the flexible resin plate as a layout;
step S4, taking a lithographic flexible resin plate as a plate surface to manufacture a surface oil printing plate roller;
step S5, printing base oil ink on the surface of the mirror surface printing material through a flexible printing process;
step S6, printing surface oil ink on the surface of the mirror surface printing material through a flexible printing process;
and step S7, enabling the base oil ink and the surface oil ink to chemically react and expand to the expected size in a preset environment.
Further, the method for printing the base ink on the surface of the mirror printing material by the flexography process comprises the following steps: adding base oil ink into the ink tank, sucking the base oil ink from the ink tank by the anilox roller through the mesh holes on the surface, scraping the base oil ink on the surface of the anilox roller by a scraper, transferring the base oil ink in the mesh holes to the convex image-text printing part on the surface of the base oil printing plate roller by the anilox roller, and printing the base oil ink on the image-text printing part on the mirror printing material by the base oil printing plate roller.
Further, the inking amount of the base ink is controlled by selecting an anilox roller with an appropriate cell depth or adjusting the printing speed.
Further, the method for printing the surface oil ink on the surface of the mirror printing material by the flexible printing process comprises the following steps: adding surface oil ink into an ink tank, drawing the surface oil ink from the ink tank by an anilox roller through a mesh hole on the surface, scraping the surface oil ink on the surface of the anilox roller by a scraper, uniformly transferring the surface oil ink in the mesh hole to the surface of a surface oil printing plate roller by the anilox roller, and printing on a mirror surface printing material by the surface oil printing plate roller.
Further, the inking amount of the top ink is controlled by selecting an anilox roller with an appropriate cell depth or adjusting the printing speed.
Furthermore, the base oil ink adopts Mole good UVJ-6312/1TF flexographic snowflake base oil, and the face oil ink adopts Mole good UVR-961/1TF flexographic snowflake face oil.
Further, in the step S5, the surface of the mirror-like printing material after printing is exposed to UV light to chemically react and swell the Molar UVJ-6312/1TF flexo vanishing base oil and the Molar UVR-961/1TF flexo vanishing top oil to a desired size.
Furthermore, the exposure power of the UV lamp is 95% -100%, and the printing speed is 90-95 prints/min.
Furthermore, in the refraction texture image file, the thickness of lines of the refraction texture is 0.03-0.05 mm, and the distance between adjacent refraction textures is 0.03-0.05 mm.
Further, the mirror printing material is aluminum plating transfer paper or medium transfer paper.
Has the advantages that: according to the invention, the flexible printing base oil ink and the flexible printing surface oil ink which can generate chemical reaction and generate the expansion effect under the preset environment are selected, and the refraction patterns are formed through the expansion effect generated by the chemical reaction of the base oil ink and the surface oil ink after printing, so that the refraction patterns with the 3D effect are formed through the flexible printing process, the printing effect basically equivalent to that of the silk screen printing process can be achieved, the plate making cost is greatly reduced compared with that of the silk screen printing process, the printing efficiency is effectively improved, and the application prospect is wide.
Drawings
FIG. 1 is a flow chart of a preferred embodiment of a method of printing 3D effect plenoptic marks using a flexography process according to the present invention;
FIG. 2 is a schematic diagram of a refraction texture image file.
Detailed Description
In order to make the technical solutions in the embodiments of the present invention better understood and make the above objects, features and advantages of the embodiments of the present invention more comprehensible, the technical solutions in the embodiments of the present invention are described in further detail below with reference to the accompanying drawings.
In the description of the present invention, unless otherwise specified and limited, it is to be noted that the term "connected" is to be interpreted broadly, and may be, for example, a mechanical connection or an electrical connection, or a communication between two elements, or may be a direct connection or an indirect connection through an intermediate medium, and a specific meaning of the term may be understood by those skilled in the art according to specific situations.
As shown in fig. 1, a preferred embodiment of the method for printing 3D effect refraction pattern by using the flexography process of the present invention comprises the following steps:
step S1, selecting flexible printing base oil ink and flexible printing surface oil ink which can generate chemical reaction and generate swelling effect under the preset environment; preferably, flexo base ink and flexo face ink capable of reacting chemically and producing a swelling effect under UV lamp exposure are used; the base oil ink can adopt Mozijia UVJ-6312/1TF flexographic snowflake base oil, and the surface oil ink can adopt Mozijia UVR-961/1TF flexographic snowflake surface oil.
Step S2, forming a refraction texture image file according to the refraction texture effect by using the refraction principle of light. In order to ensure that light rays form a three-dimensional texture effect after being refracted through the refraction grains and avoid connecting adjacent refraction grains together when the base oil ink and the surface oil ink are subjected to chemical reaction, in the refraction texture image file, the thickness of lines of the refraction grains is 0.03-0.05 mm, and is preferably 0.04 mm; the distance between adjacent refraction grains is 0.03-0.05 mm, and preferably 0.04 mm. FIG. 2 is a schematic diagram of a flower-shaped refraction texture image file.
Step S3, manufacturing a flexible resin plate of printing base oil according to the refraction texture image file, forming a convex printing image-text part on the flexible resin plate according to the refraction texture in the refraction texture image file, and manufacturing a base oil printing plate roller by taking the flexible resin plate as a layout.
And step S4, taking a lithographic flexible resin plate as a plate surface to manufacture a surface oil printing plate roller.
Step S5, printing base oil ink on the surface of the mirror surface printing material through a flexible printing process; the specific method comprises the following steps:
adding base oil ink into the ink tank, sucking the base oil ink from the ink tank by the anilox roller through the mesh holes on the surface, scraping the base oil ink on the surface of the anilox roller by a scraper, transferring the base oil ink in the mesh holes to the convex image-text printing part on the surface of the base oil printing plate roller by the anilox roller, and printing the base oil ink on the image-text printing part on the mirror printing material by the base oil printing plate roller.
The anilox roller with the appropriate cell depth can be selected according to the inking amount of the base ink before printing, and the inking amount of the base ink can also be controlled by adjusting the printing speed during printing, and preferably the inking amount of the base ink is controlled by selecting the anilox roller with the appropriate cell depth.
The mirror printing material needs to meet the conditions of flat and smooth surface, high reflectivity to incident light, capability of forming mirror reflection and the like, and is preferably aluminum plating transfer paper or medium transfer paper.
Step S6, printing surface oil ink on the surface of the mirror surface printing material through a flexible printing process; the specific method comprises the following steps:
adding surface oil ink into a color set ink tank for printing the surface oil ink by a flexible printing device, drawing the surface oil ink from the ink tank by an anilox roller through a surface screen hole, scraping the surface oil ink on the surface of the anilox roller by a scraper, uniformly transferring the surface oil ink in the screen hole of the anilox roller to the surface of a surface oil printing plate roller, and printing on a mirror surface printing material by the surface oil printing plate roller.
The anilox roller with the appropriate cell depth can be selected according to the inking amount of the top ink before printing, or the inking amount of the top ink can be controlled by adjusting the printing speed during printing, preferably the inking amount of the top ink is controlled by selecting the anilox roller with the appropriate cell depth.
And step S7, providing a preset environment for the chemical reaction of the base oil ink and the surface oil ink. Setting the printing machine speed to be 90-95 prints/minute, preferably 92 prints/minute, setting the exposure power of a UV lamp to be 95% -100%, preferably 100%, and exposing the surface of the printed mirror printing material by using the UV lamp to ensure that the base ink and the surface ink are subjected to chemical reaction and expand to the expected size.
The embodiment selects the flexible printing base oil ink and the flexible printing surface oil ink which can generate chemical reaction and generate expansion effect under the exposure of the UV lamp, and the expansion effect generated by the chemical reaction of the base oil ink and the surface oil ink forms refraction patterns after printing, so that the refraction patterns with 3D effect are formed through the flexible printing process, the printing effect basically equivalent to the silk screen printing process can be achieved, the plate making cost is greatly reduced compared with the silk screen printing process, the printing efficiency is effectively improved, and the application prospect is wide.
The undescribed parts of the present invention are consistent with the prior art, and are not described herein.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent structures made by using the contents of the present specification and the drawings can be directly or indirectly applied to other related technical fields, and are within the scope of the present invention.
Claims (10)
1. A method for printing 3D effect refraction patterns by adopting a flexography process is characterized by comprising the following steps:
step S1, selecting flexible printing base oil ink and flexible printing surface oil ink which can generate chemical reaction and generate swelling effect under the preset environment;
step S2, forming a refraction texture image file by using the refraction texture effect;
step S3, manufacturing a flexible resin plate of printing base oil according to the refraction texture image file, and manufacturing a base oil printing plate roller by taking the flexible resin plate as a layout;
step S4, taking a lithographic flexible resin plate as a plate surface to manufacture a surface oil printing plate roller;
step S5, printing base oil ink on the surface of the mirror surface printing material through a flexible printing process;
step S6, printing surface oil ink on the surface of the mirror surface printing material through a flexible printing process;
and step S7, enabling the base oil ink and the surface oil ink to chemically react and expand to the expected size in a preset environment.
2. The method for printing 3D effect refraction pattern according to claim 1, wherein the method for printing the primer ink on the surface of the mirror-surface printing material by the flexography process comprises: adding base oil ink into the ink tank, sucking the base oil ink from the ink tank by the anilox roller through the mesh holes on the surface, scraping the base oil ink on the surface of the anilox roller by a scraper, transferring the base oil ink in the mesh holes to the convex image-text printing part on the surface of the base oil printing plate roller by the anilox roller, and printing the base oil ink on the image-text printing part on the mirror printing material by the base oil printing plate roller.
3. The method for printing 3D effect flexography printing according to claim 2, wherein the inking amount of the base ink is controlled by selecting an anilox roller with an appropriate cell depth or adjusting the printing speed.
4. The method for printing 3D effect refraction pattern by using the flexography process according to claim 1, wherein the method for printing the surface ink on the surface of the mirror-surface printing material by using the flexography process comprises: adding surface oil ink into an ink tank, drawing the surface oil ink from the ink tank by an anilox roller through a mesh hole on the surface, scraping the surface oil ink on the surface of the anilox roller by a scraper, uniformly transferring the surface oil ink in the mesh hole to the surface of a surface oil printing plate roller by the anilox roller, and printing on a mirror surface printing material by the surface oil printing plate roller.
5. The method for printing 3D effect flexography printing according to claim 4, wherein the inking amount of the face ink is controlled by selecting an anilox roller with an appropriate cell depth or adjusting the printing speed.
6. The method for printing 3D effect flexo graphic marks using a flexo process according to claim 1, wherein the base ink uses mozzarella UVJ-6312/1TF flexographic vanishing base oil and the finish ink uses mozzarella UVR-961/1TF flexographic vanishing finish oil.
7. The method for printing 3D effect refraction mark by using flexible printing process as claimed in claim 6, wherein in step S5, the surface of the mirror printing substrate after printing is exposed by UV lamp to chemically react and swell the Mole UVJ-6312/1TF flexo vanishing oil and the Mole UVR-961/1TF vanishing oil to the desired size.
8. The method for printing 3D effect refraction pattern by using the flexography process according to claim 7, wherein the exposure power of the UV lamp is 95% -100%, and the printing speed is 90-95 print/min.
9. The method for printing 3D effect refraction pattern by using flexography process as claimed in claim 1, wherein in the refraction pattern image file, the thickness of the lines of the refraction pattern is 0.03-0.05 mm, and the distance between adjacent refraction patterns is 0.03-0.05 mm.
10. The method of printing 3D effect pleating using a flexography process of claim 1, wherein the mirror substrate is an aluminum plated transfer paper or a media transfer paper.
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| CN202010867087.8A CN111942042A (en) | 2020-08-26 | 2020-08-26 | Method for printing 3D effect refraction pattern by using flexography process |
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| CN202010867087.8A CN111942042A (en) | 2020-08-26 | 2020-08-26 | Method for printing 3D effect refraction pattern by using flexography process |
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| CN112937141A (en) * | 2021-04-25 | 2021-06-11 | 深圳市裕同包装科技股份有限公司 | Method for water drop touch printing process |
| CN113059940A (en) * | 2021-03-18 | 2021-07-02 | 深圳新宏泽包装有限公司 | Anti-counterfeiting printing method |
| CN114312079A (en) * | 2021-12-14 | 2022-04-12 | 苏州江天包装科技股份有限公司 | Reverse oil printing process of dynamic label |
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Application publication date: 20201117 |