CN112959807A - Equipment for manufacturing multilayer gradual change and optical change effect and using method thereof - Google Patents
Equipment for manufacturing multilayer gradual change and optical change effect and using method thereof Download PDFInfo
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- CN112959807A CN112959807A CN202110393280.7A CN202110393280A CN112959807A CN 112959807 A CN112959807 A CN 112959807A CN 202110393280 A CN202110393280 A CN 202110393280A CN 112959807 A CN112959807 A CN 112959807A
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- printing
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- ink
- optically variable
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F15/00—Screen printers
- B41F15/08—Machines
- B41F15/12—Machines with auxiliary equipment, e.g. for drying printed articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F15/00—Screen printers
- B41F15/14—Details
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F23/00—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing
- B41F23/04—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing by heat drying, by cooling, by applying powders
Abstract
The invention relates to equipment for manufacturing multilayer gradual change and optical change effects, which comprises a printing stock plane magnetic table arranged in a silk screen machine, wherein plane magnets are arranged in the printing stock plane magnetic table, and the equipment also comprises a UV drying tunnel, wherein an explosion-initiating lamp and a UV ultraviolet lamp are sequentially arranged on the UV drying tunnel, and the explosion-initiating lamp is an ultraviolet lamp. The method of using the apparatus comprises: 1) aligning the printed product; 2) adjusting and applying ink; 3) installing a plate by a wire mesh machine; 4) embossing to manufacture a multi-layer gradual change effect; 5) and (5) manufacturing the light variation effect. The printing method comprises the steps of installing a printing stock plane magnetic table on the existing screen printing machine, then printing the mixed magnetic fluorescent ink on a printed product by a screen printing plate, forming a gradient printing effect by using a magnetic field, exciting an optically variable fluorescent pigment layer in the ink by a UV drying tunnel and curing the ink, effectively shortening the printing process flow, obtaining the printing pattern manufacturing effect with multilayer gradient and optically variable effects at one time, and greatly improving the technical efficiency of the screen printing process; the gradual change and the light variation effect on the patterns have the characteristic of bright color.
Description
Technical Field
The invention belongs to the technical field of package printing anti-counterfeiting, and particularly relates to equipment for manufacturing multilayer gradual change and optical change effects and a using method thereof.
Background
At present, the method and the process of printing the gradual change are to fill a plurality of colors when a prepress file is manufactured, and to print the depth of the gradual change transition of the colors in a mode of dot size. The anti-counterfeiting printing product with multi-layer gradual change and light change effects can be manufactured only by printing the gradual change printing product by adopting a screen point (first offset printing), and then covering the pattern printed for the first time with the light change printing ink by adopting the second screen printing, so that the printing process flow is longer, the mode is complex, the gradual change and the light change effects are single, the technology is a common technology in the field, and the gradual change effect of the first printing can be influenced by the light change printing ink which is covered for the second time in the actual production.
The optically variable ink adopted in the printing process is widely applied in the field of printing and packaging, and is also important anti-counterfeiting ink, such as: luminous ink, ultraviolet fluorescent ink and other optically variable ink are widely applied to the aspects of tickets, receipts and the like. But a printed patch can only present one pair of colors, for example: red-green, green-blue, gold-silver, or colorless to colored, etc. The light variation effect is single, the light variation effect only presents two reverse colors, the printed matters with the same counterfeiting and the inferior quality are easily imitated, and the anti-counterfeiting performance is very weak.
It is desired to provide a short flow path and a technical solution capable of realizing multi-layer gradual change and optical change effects to solve the above technical problems.
Disclosure of Invention
In view of the above problems, the present invention provides an apparatus and a method for using the same, which can achieve a short process and achieve multi-layer gradual change and optical change effects.
The specific technical scheme is that the equipment for manufacturing the multilayer gradual change and the optical change effect comprises a screen printing machine, wherein a printing stock plane magnetic table for placing a printing product is arranged in the screen printing machine and comprises a printing stock plane magnetic table, a plurality of magnetic grooves are formed in the printing stock plane magnetic table, plane magnets are installed in the magnetic grooves, the top surfaces of the plane magnets need to be flush with the printing stock plane magnetic table, a supporting seat fixedly connected with the screen printing machine is arranged below the printing stock plane magnetic table, and the printing stock plane magnetic table is connected with the supporting seat through a lifting adjusting mechanism.
Still include the UV drying tunnel, the UV drying tunnel bears the conveying mechanism of seal article including the transportation, last explosion initiating lamp and the UV ultraviolet lamp of having set gradually of conveying mechanism, the explosion initiating lamp is ultraviolet lamp.
Furthermore, the plane is magnetized into a cuboid, the length of the cuboid is 80mm, and the width of the cuboid is 50 mm.
Further, the distance between the plane magnetic edges is 50 mm.
Further, the wavelength of the ultraviolet lamp of the detonating lamp is 284nm-365 nm.
Further, the wavelength of the UV ultraviolet lamp is 400 nm-500 nm.
Further, the conveying speed of the conveying mechanism is 30m/min or 49 m/min.
Another object of the present invention is to provide a method for using the above apparatus for making multi-layer gradation and light variation effects, comprising the steps of:
1) aligning the printed product: the plane magnets of the printed matter and the plane magnetic table of the printing stock are subjected to contraposition typesetting, namely, the patterns with the gradual change and the optical variation effects and the plane magnets are manufactured on one point.
2) Ink mixing and inking: and (3) blending the magnetic fluorescent ink on a screen plate of a screen machine.
3) Installing a plate by a screen machine: the silk screen plate is arranged on the silk screen machine, and the silk screen plate is adjusted to ensure that the printing pattern on the silk screen plate is aligned with the plane magnetism of the plane magnetic table of the printing stock accurately.
4) Impression making a multilayer gradient effect: and (3) performing flattening, aligning and imprinting on the printed material plane magnetic table along the screen printing direction by the screen printing plate after inking, printing the prepared magnetic fluorescent ink on a printed product by the screen printing plate, and then finishing magnetic gradient printing of the printed product by the plane magnetism of the printed material plane magnetic table.
5) And (3) manufacturing an optical variation effect: and (3) transporting the printed product after completing the magnetic gradient printing in the step 4) to a transfer mechanism of a UV drying channel to excite an optically variable fluorescent pigment layer in wet ink at a position of a detonating lamp, and transporting the printed product to solidify the printed product through a UV ultraviolet lamp to obtain the printed product with multiple layers of gradient and optically variable.
The magnetic fluorescent ink prepared in the step 2) is based on magnetic ink, an optically variable fluorescent pigment is added into the magnetic ink, the magnetic ink is uniformly stirred by a stirrer, the optically variable fluorescent pigment and the magnetic ink are chemically compounded, and the optically variable fluorescent pigment is colorless and permeates into the magnetic ink; the optically variable fluorescent pigment needs to be an inorganic fluorescent pigment, the wavelength of the absorbed light wave is 300-400 nm, and the wavelength of the emitted light is 400-500 nm.
The magnetic field of the plane magnetism of the plane magnetic table of the printing stock carries out multi-layer gradient grain customization on the magnetic material in the wet ink of the magnetic fluorescent ink output on the printed matter by the silk screen printing plate, and the grains with multi-layer gradient effect are manufactured.
Further, the magnetic fluorescent ink prepared in the step 2) is based on magnetic ink, optically variable fluorescent pigment is added into the magnetic ink, and easily synthesized and crushed fluorescent pigment is selected, and the mixing ratio is 2000g of magnetic ink to 435g of optically variable fluorescent pigment.
Through the wavelength (284 nm-365 nm) of the ultraviolet ignition lamp, the ignition lamp is an additionally installed lamp set adopted by the process, and only one group of ultraviolet lamps is used for curing in normal equipment. The excited fluorescent layer obtains an ultraviolet light variable effect, and is solidified at the wavelength (400-500 nm) of an ultraviolet lamp, so that the obtained pattern printing part has the following characteristics: the prints with the multi-layer gradual change and the flash light change effect are seen by naked eyes through irradiation of an ultraviolet lamp.
The invention has the beneficial effects that: the printing method comprises the steps of installing a printing stock plane magnetic table on the existing screen printing machine, then printing the mixed magnetic fluorescent ink on a printed product by a screen printing plate, forming a gradient printing effect by using a magnetic field, exciting an optically variable fluorescent pigment layer in the ink by a UV drying tunnel and curing the ink, effectively shortening the printing process flow, obtaining the printing pattern manufacturing effect with multilayer gradient and optically variable effects at one time, and greatly improving the technical efficiency of the screen printing process;
and the gradual change and the light variation effects on the patterns have the characteristic of bright colors, and the method is a printing technology which cannot be imitated by the traditional offset printing dot printing mode and the silk-screen light variation ink.
The application and anti-counterfeiting performance of the magnetic ink and the fluorescent ink in the field of packaging are enhanced.
The effect that this technique printed out appears obvious multilayer gradual change and the printing product that the light becomes the effect and increases progressively in proper order by the pattern is outermost to interior, uses ultraviolet lamp when shining, and the flashing shows gradually change and the light becomes the effect, and the antifalsification is extremely strong, is the effect that can't reach easily using prior art.
Drawings
FIG. 1 is a schematic perspective view of the apparatus for producing multi-layer gradation and optical variation effects of the present invention,
FIG. 2 is a cross-sectional view of a substrate planar stage assembly of the apparatus for producing multi-layer gradient and optically variable effects of the present invention.
Fig. 3 is a schematic side view of the screen printing machine with the printing stock plane magnetic table in the device for manufacturing multilayer gradient and optical variable effect.
Fig. 4 is a schematic diagram of the structure of uv drying tunnel in the apparatus for making multi-layer gradient and light variation effect of the present invention.
FIG. 5 is a diagram showing the pattern effect of the printed matter obtained by the apparatus and the method of using the same of example 2.
FIG. 6 is a graph showing the effect of the pattern of the printed matter obtained in comparative example 1 using the apparatus of the present invention and the method of using the same.
In the upper diagram: 1-silk screen machine, 101-silk screen plate, 102-hook, 103-hook buckle, 104-screen plate locking mechanism, 2-printing stock plane magnetic table, 201-printing stock plane table, 202 plane magnetic, 203-magnetic groove, 204-supporting seat, 205-lifting adjusting mechanism, 3-UV drying tunnel, 301-conveying mechanism, 302-detonation lamp, 303-UV ultraviolet lamp and 4-printing product.
Detailed Description
In order to make the technical problems and technical solutions solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and 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.
Example 1:
as shown in fig. 1 to 3, an apparatus for producing multi-layer gradation and light-variation effects includes a screen printing machine 1, the screen printing machine 1 is a conventional printing apparatus, and a screen printing plate 101 is mounted on the screen printing machine 1 through a hook 102, a hook buckle 103, a screen locking mechanism 104, and the like.
The printing stock plane magnetic table 2 is used for placing printing stocks after being detached and installed and transformed, the printing stock plane magnetic table 2 comprises a printing stock plane table 201, a plurality of magnetic grooves 203 are formed in the printing stock plane table 201, a plane magnet 202 is installed in the magnetic grooves 203, the top surface of the plane magnet 202 needs to be flush with the printing stock plane table 201, a supporting seat 204 fixedly connected with the silk screen machine 1 is arranged below the printing stock plane table 201, and the printing stock plane table 201 is connected with the supporting seat 204 through a lifting adjusting mechanism.
The planar magnet 202 is made into a cuboid with the length of 80mm and the width of 50mm by using a magnet, the shape of the planar magnet is designed according to the pattern of the printed product 4 and the printing stock planar magnet table 2 which is embedded into the same rectangle most effectively, the planar magnet can also be made into a rectangle with the length of 50mm and the width of 50mm, and as long as the edge-to-edge distance between the two planar magnets 202 is ensured to be 50mm, the planar magnet does not influence the magnetic field. Of course, the planar magnet 202 with the length of 80mm and the width of 50mm can effectively utilize the printing surface of the planar magnet table 2 (the size is 1 meter multiplied by 0.8 meter) of the printing stock, so that more prints can be printed.
Preferably, the distance between the two plane magnets 202 is 50mm, namely, after the pattern of the print 4 is aligned with the center of the plane magnet 202, the distance from the edge of one plane magnet to the edge of the other plane magnet is 50 mm; a 50mm separation is the effect of minimizing or substantially eliminating the mutual interference of the magnetic fields of two adjacent planar magnets 202.
After the inventor continuously tests and summarizes, it is found that when the thickness is less than 50mm and greater than 50mm, the multi-layer gradual change effect is not obvious and dim, the manufacturing of the optical change effect is affected, the gradual change of the printed product obtained by printing and the pattern of the optical change effect are not ideal, and although the realization of the technical scheme of the invention is not affected, the technical scheme that the distance between the plane magnets 202 arranged in the industrial production is 50mm is ensured is the preferred technical scheme.
The printing machine further comprises a UV drying tunnel 3, wherein the UV drying tunnel 3 comprises a conveying mechanism 301 for conveying and bearing the printing products 4, the conveying mechanism 301 can be a belt type or chain type conveying mechanism or a roller conveying mechanism and the like, the belt type or chain type conveying mechanism or the roller conveying mechanism is common technical equipment in the field, the conveying mechanism 301 is a known technology, an explosion initiating lamp 302 and a UV ultraviolet lamp 303 are sequentially arranged on the conveying mechanism 301, and the explosion initiating lamp 302 is an ultraviolet lamp.
The wavelength of the ultraviolet lamp of the detonation lamp 302 is 284nm-365nm, and the wavelength is adopted to be matched with optically variable fluorescent pigment in the magnetic fluorescent ink. The detonation lamp 302 is an additional lamp set adopted for the process of the invention, and the normal equipment is only a UV curing lamp.
The wavelength of the UV lamp 303 is 400 nm-500 nm, and the gradual change and light change effects in the wet ink structure are cured by adopting the UV lamp with the wavelength of 400-500 nm.
When the conveying speed of the UV ultraviolet lamp 303 conveying mechanism 301 is 30m/min, two full lamps are preferably arranged on the UV ultraviolet lamp 303; or when the conveying speed of the conveying mechanism 301 is 49m/min, three full lamps are preferably arranged on the UV ultraviolet lamp 303.
Example 2:
a method of using the apparatus for making a multi-layer gradient and optically variable effect as described in example 1:
1) aligning the printed product: the printing product 4 and the plane magnet 202 of the printing material plane magnetic table 2 are subjected to contraposition typesetting, namely, the patterns with the gradual change and the optical change effects and the plane magnet 202 are manufactured on one point.
2) Ink mixing and inking: magnetic fluorescent ink is prepared on a screen plate 101 of a screen machine 1;
the magnetic fluorescent ink is based on magnetic ink, and a light-sensitive fluorescent pigment is added into the magnetic ink.
435g of optically variable fluorescent pigment is adopted as the optimal mixing proportion, and when the proportion of the optically variable fluorescent pigment is gradually increased, more optically variable fluorescent pigment can cover the effect of gradual gradation, and less optically variable fluorescent pigment can not obviously or not optically change; the proportion of the magnetic ink is more, the gradual change is obviously enhanced, but the gradual change effect influences the light change effect, and if the proportion of the magnetic ink is less, the gradual change effect is reduced or not, and only the light change effect can be seen.
The optically variable fluorescent pigment and the magnetic ink are chemically compounded by uniformly stirring through a stirrer, and the optically variable fluorescent pigment is colorless and permeates into the magnetic ink.
The optically variable fluorescent pigment needs to be inorganic fluorescent pigment (such as zinc and chromium), the wavelength of light absorption is 300-400 nm, the wavelength of emitted light is 400-500nm, and the wavelength of the ultraviolet lamp of the explosion-initiating lamp 302 is 284-365 nm, which must be matched.
Only one kind of optically variable fluorescent pigment, for example, 435g of an ultraviolet color-changing fluorescent pigment was mixed in this example.
3) Installing a plate by a screen machine: the screen machine 1 is provided with the screen plate 101, and the screen plate 101 is adjusted to ensure that the printing pattern on the screen plate 101 and the plane magnet 202 of the plane magnet table 2 of the printing object are accurately aligned.
4) Impression making a multilayer gradient effect: and (3) performing flattening, aligning and imprinting on the inked silk screen plate 101 towards the printing stock plane magnetic table 2 along the imprinting direction of the silk screen machine 1, printing the mixed magnetic fluorescent ink on the printed matter 4 by the silk screen plate 101, and then finishing the magnetic gradient printing of the printed matter 4 by the plane magnet 202 of the printing stock plane magnetic table 2. The embossing time and pressure of the platen press have no special requirements.
5) And (3) manufacturing an optical variation effect: and (3) transporting the printed product 4 after the magnetic gradient printing in the step 4) to a detonation lamp 302 through a conveying mechanism 301 of the UV drying channel 3 to excite an optically variable fluorescent pigment layer in wet ink, continuing to move the conveying mechanism 301 forwards, transporting the printed product 4, and curing the printed product 4 through a UV ultraviolet lamp 303 to obtain a multi-layer gradient and optically variable printed product.
The optically variable fluorescent pigment is excited by the explosion initiating lamp 302 and the UV ultraviolet lamp 303 of the UV drying tunnel 3 (the wavelength must be controlled to be 284nm-365 nm), and after the optically variable fluorescent pigment in the wet ink is excited, the gradual change and optically variable effect in the wet ink is solidified by the UV ultraviolet lamp 303, so that the pattern effect diagram of the printed matter 4 shown in figure 5 can be obtained.
Comparative example 1:
as shown in fig. 6, this comparative example is different from example 2 in that the edge-to-edge spacing of the planar magnets 202 is 50mm, that is, when the pattern of the print 4 is 60mm from the edge of one planar magnet to the edge of the other planar magnet after facing the center of the planar magnet 202; the mutual interference of the magnetic fields and the insignificant and dull multi-layer gradient effect can affect the production of the light variable effect, and the pattern effect diagram of the printed matter 4 shown in fig. 6 can be obtained.
The present invention has been described in detail with reference to the specific and preferred embodiments, but it should be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and any modifications, equivalents and the like, which are within the spirit and principle of the present invention, should be included in the scope of the present invention.
Claims (7)
1. An apparatus for producing a multilayer gradient and optically variable effect, comprising a screen machine (1), characterized in that: the screen printing machine is characterized in that a printing stock plane magnetic table (2) for placing a printing product is arranged in the screen printing machine (1), the printing stock plane magnetic table (2) comprises a printing stock plane table (201), a plurality of magnetic grooves (203) are formed in the printing stock plane table (201), a plane magnet (202) is arranged in each magnetic groove (203), the top surface of each plane magnet (202) needs to be flush with the printing stock plane table (201), a supporting seat (204) fixedly connected with the screen printing machine (1) is arranged below the printing stock plane table (201), and the printing stock plane table (201) is connected with the supporting seat (204) through a lifting adjusting mechanism;
still include UV drying tunnel (3), UV drying tunnel (3) bear conveying mechanism (301) of seal article (4) including the transportation, last priming lamp (302) and the UV ultraviolet lamp (303) of having set gradually of conveying mechanism (301), priming lamp (302) are ultraviolet lamp, priming lamp (302) ultraviolet lamp's wavelength is 284nm ~365 nm.
2. An apparatus for producing multi-layer gradations and optically variable effects as claimed in claim 1, wherein: the plane magnet (202) is a cuboid, 80mm long and 50mm wide.
3. An apparatus for producing multi-layer gradient and optically variable effects as claimed in claim 1 or 2, wherein: the edge-to-edge spacing of the planar magnets (202) is 50 mm.
4. An apparatus for producing multi-layer gradations and optically variable effects as claimed in claim 3, wherein: the wavelength of the UV ultraviolet lamp (303) is 400 nm-500 nm.
5. An apparatus for producing multi-layer gradient and optically variable effects as claimed in claim 4, wherein: the conveying speed of the conveying mechanism (301) is 30m/min or 49 m/min.
6. Use of a device for producing multi-layer gradations and optically variable effects as claimed in any one of claims 1 to 5, characterized in that: the method comprises the following steps:
aligning the printed product: the printed matter (4) and the plane magnet (202) of the printing stock plane magnetic table (2) are subjected to contraposition typesetting, namely, patterns with gradual change and optical change effects and the plane magnet (202) are manufactured on one point;
ink mixing and inking: magnetic fluorescent ink is prepared on a screen plate (101) of a screen machine (1);
3) installing a plate by a screen machine: installing a silk screen plate (101) on the silk screen machine (1), and adjusting the silk screen plate (101) to ensure that the printing pattern on the silk screen plate (101) and the plane magnet (202) of the printing stock plane magnetic table (2) are accurately aligned at the same time;
4) impression making a multilayer gradient effect: the silk screen plate (101) after inking performs flat pressing and alignment imprinting to the printing stock plane magnetic table (2) along the imprinting direction of the silk screen machine (1), the silk screen plate (101) prints the prepared magnetic fluorescent ink on the printed matter (4), and then the magnetic gradient printing of the printed matter (4) is completed through the plane magnet (202) of the printing stock plane magnetic table (2);
5) and (3) manufacturing an optical variation effect: transporting the printed product (4) after the magnetic gradient printing in the step 4) to a detonation lamp (302) through a conveying mechanism (301) of a UV drying tunnel (3) to excite an optically variable fluorescent pigment layer in wet ink, continuously moving the conveying mechanism (301) forwards, transporting the printed product (4) to a UV ultraviolet lamp (303) to solidify the printed product (4), and obtaining a multi-layer gradient and optically variable printed product;
the magnetic fluorescent ink prepared in the step 2) is based on magnetic ink, an optically variable fluorescent pigment is added into the magnetic ink, the magnetic ink is uniformly stirred by a stirrer, the optically variable fluorescent pigment and the magnetic ink are chemically compounded, and the optically variable fluorescent pigment is colorless and permeates into the magnetic ink; the optically variable fluorescent pigment needs to be an inorganic fluorescent pigment, the wavelength of the absorbed light wave is 300-400 nm, and the wavelength of the emitted light is 400-500 nm.
7. The use method of the apparatus for making multi-layer gradient and optically variable effects as claimed in claim 6, wherein: the magnetic fluorescent ink prepared in the step 2) is based on magnetic ink, and optically variable fluorescent pigment is added into the magnetic ink according to the mixing ratio of 2000g of magnetic ink to 435g of optically variable fluorescent pigment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110393280.7A CN112959807A (en) | 2021-04-13 | 2021-04-13 | Equipment for manufacturing multilayer gradual change and optical change effect and using method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110393280.7A CN112959807A (en) | 2021-04-13 | 2021-04-13 | Equipment for manufacturing multilayer gradual change and optical change effect and using method thereof |
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| CN112959807A true CN112959807A (en) | 2021-06-15 |
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| CN202110393280.7A Pending CN112959807A (en) | 2021-04-13 | 2021-04-13 | Equipment for manufacturing multilayer gradual change and optical change effect and using method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114475031A (en) * | 2021-12-30 | 2022-05-13 | 惠州市华阳光学技术有限公司 | 3D ball effect generation device and method |
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2021
- 2021-04-13 CN CN202110393280.7A patent/CN112959807A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114475031A (en) * | 2021-12-30 | 2022-05-13 | 惠州市华阳光学技术有限公司 | 3D ball effect generation device and method |
| CN114475031B (en) * | 2021-12-30 | 2023-10-24 | 惠州市华阳光学技术有限公司 | Device and method for generating 3D ball effect |
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