CN110143076B - Magnetism fixing method for magnetic optically variable ink - Google Patents
Magnetism fixing method for magnetic optically variable ink Download PDFInfo
- Publication number
- CN110143076B CN110143076B CN201910452620.1A CN201910452620A CN110143076B CN 110143076 B CN110143076 B CN 110143076B CN 201910452620 A CN201910452620 A CN 201910452620A CN 110143076 B CN110143076 B CN 110143076B
- Authority
- CN
- China
- Prior art keywords
- magnetic
- steel plate
- optically variable
- variable ink
- magnetism
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000005389 magnetism Effects 0.000 title claims abstract description 46
- 238000000034 method Methods 0.000 title claims abstract description 38
- 238000007639 printing Methods 0.000 claims abstract description 82
- 229910001172 neodymium magnet Inorganic materials 0.000 claims abstract description 71
- 229910000926 A-3 tool steel Inorganic materials 0.000 claims abstract description 61
- 230000000694 effects Effects 0.000 claims abstract description 52
- 238000005520 cutting process Methods 0.000 claims abstract description 50
- 239000000463 material Substances 0.000 claims abstract description 34
- 230000000149 penetrating effect Effects 0.000 claims abstract description 13
- 230000008569 process Effects 0.000 claims abstract description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 48
- 239000010959 steel Substances 0.000 claims description 48
- 230000000712 assembly Effects 0.000 claims description 20
- 238000000429 assembly Methods 0.000 claims description 20
- 239000000049 pigment Substances 0.000 claims description 17
- 230000009471 action Effects 0.000 claims description 6
- 230000005415 magnetization Effects 0.000 claims description 6
- 230000035515 penetration Effects 0.000 claims description 4
- 239000000758 substrate Substances 0.000 claims 1
- 239000000976 ink Substances 0.000 description 82
- 238000009826 distribution Methods 0.000 description 12
- 230000000007 visual effect Effects 0.000 description 10
- 238000012545 processing Methods 0.000 description 6
- 208000025174 PANDAS Diseases 0.000 description 5
- 208000021155 Paediatric autoimmune neuropsychiatric disorders associated with streptococcal infection Diseases 0.000 description 5
- 238000003698 laser cutting Methods 0.000 description 5
- 240000004718 Panda Species 0.000 description 4
- 235000016496 Panda oleosa Nutrition 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000006872 improvement Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 239000004744 fabric Substances 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 239000003086 colorant Substances 0.000 description 2
- 239000002932 luster Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 230000002730 additional effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
Images
Classifications
-
- 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
Landscapes
- Printing Methods (AREA)
- Credit Cards Or The Like (AREA)
Abstract
The invention discloses a magnetism fixing method of magnetic light-variable ink, belonging to the technical field of printing anti-counterfeiting, wherein the magnetism fixing method is characterized in that in the printing process of the magnetic light-variable ink, an A3 steel plate with cutting patterns and a magnetic field shielding effect and a neodymium magnet assembly positioned on one side of the A3 steel plate are adopted to form a magnetism fixing device, the magnetism fixing device effectively shields the magnetic light-variable ink on a printing material through a partial region magnetic field, and the A3 steel plate forms cutting patterns corresponding to the printing patterns through a seam penetrating through a plate body. The pattern printed by the magnetic optically variable ink has more obvious optically variable effect, color effect and relief effect by the magnetism fixing method.
Description
Technical Field
The invention relates to the technical field of printing anti-counterfeiting, in particular to a magnetism fixing method of magnetic optically variable ink.
Background
Magnetic optically variable inks were first developed by SICPA of Switzerland, which was formally applied to currency by pulverizing five layers of optically variable plating structures having a symmetrical structure to form Optically Variable Pigments (OVP) to obtain Optically Variable Inks (OVI), and by being combined with printing techniques, the optically variable inks were formally marketed in 6 months of 1987. As the further development of the optically variable ink, other two-line anti-counterfeiting elements are introduced, for example, magnetic elements are added into the structure of the existing optically variable pigment, so that the optically variable pigment flake has the angular color changing function and the magnetic characteristic at the same time, the anti-counterfeiting technology of the optically variable ink is upgraded, and the magnetic optically variable ink (OVMI) is formed. The magnetic optically variable ink integrates the characteristics of the magnetic ink and the optically variable ink into a whole, so that optically variable colors have a flowing effect, the light and shade change is more obvious, and the anti-counterfeiting requirement can be met.
The magnetic optically variable ink and the application thereof in anti-counterfeiting, which are published by Xiyan Xinghu et al of the scientific and technological college in Minnan, university of Fujian, and the like, disclose different distribution conditions of the magnetic optically variable ink on paper and visual effects thereof.
As shown in fig. 1, the first distribution of the magnetic optically variable ink on the paper 003 is that the magnetic optically variable flakes 001 are distributed on the carrier 002, and can be divided into 3 parts according to the distribution characteristics of the magnetic optically variable flakes 001: left side parallel alignment, right side parallel alignment and middle symmetry axis position. When the viewer is at viewing angle 1, part 1 is bright due to the reflection of light, and part 2 is dark, the effect is shown in fig. 2 a. If the viewer changes the viewing angle, at viewing angle 2, the brightness changes, and the 1 st part appears dark and the 2 nd part appears bright, the effect of which is shown in fig. 2 b. Similarly, since the magnetic optically variable sheets 001 have color variation characteristics at the same time, when the observer is at an angle 1, the 1 st part shows a color M, and the 2 nd part shows a color N, and if the observer changes the viewing angle, the colors are converted when the observer is at a viewing angle 2, the 1 st part shows a color N, and the 2 nd part shows a color M, which is different from the color N in color gradation.
A second distribution of the magnetic optically variable ink on the paper 003 is shown in fig. 3, and the magnetic optically variable sheet 001 has a curved distribution, and has an effect that a region where light is directly reflected from the surface of the magnetic optically variable sheet 001 to the observer is brighter than a region where light is not directly reflected to the observer, thereby exhibiting a phenomenon of light reflected by a polished metal cylinder. The result is that the image presents moving bands of light or stripes of light, the illumination source is fixed, and when the image is tilted, the entire image "rolls" so that the color change is more specific, thereby achieving a more advanced anti-counterfeiting function. At this time, the visual effect exhibited when the magnetic optically variable flakes 001 in the magnetic optically variable ink were distributed on the paper 003 in a curved surface is as shown in fig. 4. When the magnetic optically variable flakes 001 are arranged and distributed in the carrier 002 in a convex curved surface, the convex curved surface is located in the middle of the carrier 002. When the viewer views the pattern 004, the pattern 004 will show a bright light band as shown in fig. 4a, and the light band will produce a "light band scrolling" effect as shown in fig. 4b as the viewing angle of the viewer changes. In order to achieve the above effect, the magnetic optically variable flakes 001 in the ink must be arranged in a certain rule during the printing process. Taking an example of the arrangement of the magnetic optically variable thin sheets 001 in a convex curved surface, as shown in fig. 5, when ink enters a magnetic field in an arrow direction, the magnetic optically variable thin sheets 001 are arranged according to the distribution of magnetic lines of force 006 under the action of the magnetic field, and form an upward convex curved surface at the center, thereby forming a movable optical band effect.
The existing magnetic fixing mode for printing the magnetic optically variable ink mainly comprises the following steps: a fixed magnetic device 005 consisting of a flexible magnetic material with patterns 004 and a neodymium magnet assembly is applied, and the magnetic optically variable sheets 001 in the magnetic optically variable ink are directionally arranged according to the characteristics of different magnetic field intensities of all parts on the fixed magnetic device 005.
Disclosure of Invention
In view of the problems and disadvantages of the prior art, an object of the present invention is to provide a method for fixing magnetism of a magnetic optically variable ink, in which a magnetic field shielded in a partial region is formed by an a3 steel plate having a through seam disposed between a neodymium magnet assembly and a printing material, and magnetic pigments in the magnetic optically variable ink are aligned under the action of the magnetic field shielded in the partial region, so that the magnetic optically variable ink can form more remarkable optically variable effects, color effects and relief effects after being cured.
The invention is realized by the following technical scheme: a method for fixing magnetism of magnetic light-variable ink is characterized in that in the printing process of the magnetic light-variable ink, a A3 steel plate with cutting patterns and a magnetic field shielding function and a neodymium magnet assembly positioned on one side of the A3 steel plate are adopted to form a magnetism fixing device, the magnetism fixing device is used for fixing magnetism of the magnetic light-variable ink on a printing material, wherein the magnetic field of a part of the magnetism fixing device is effectively shielded, and the cutting patterns corresponding to the printing patterns are formed on the A3 steel plate through seams penetrating through a plate body.
The directional arrangement of the magnetic pigments depends on the characteristic that a strong magnetic field exists in a partial area of the fixed magnetic device and a partial area of the magnetic field is shielded, and compared with the characteristic that the directional arrangement of the magnetic pigments depends on the difference of the magnetic field intensity of each part of the fixed magnetic device in the prior art, the pattern light variation effect, the light color effect and the relief effect after the magnetic light variation ink is printed are obviously enhanced. The effect of shielding the magnetic field of partial area is formed on the fixed magnetic device in the invention because the fixed magnetic device in the invention mainly comprises A3 steel plate with cutting pattern and neodymium magnet assembly. The A3 steel is one of low-carbon steels, and its chemical composition and mechanical properties are basically the same as those of Q235 steel. The A3 steel plate without hollow holes can effectively shield the magnetic field, but the magnetic field can pass through the seam penetrating through the A3 steel plate, so that the magnetic field formed by the neodymium magnet assembly distributed on one side of the A3 steel plate only partially passes through the seam, and the rest part is shielded. Therefore, when a printing material such as paper, silk cloth or the like is laid on the upper plane of the a3 steel plate with the through-seam and the neodymium magnet assembly is arranged on the lower plane, if the magnetic optically variable ink is coated on the printing material, the pattern formed by the oriented arrangement of the magnetic pigments in the magnetic optically variable ink corresponding to the seam position on the printing material and then the magnetic pigments are solidified has a more vivid gloss effect and a more prominent relief effect.
In order to better implement the invention, the seam width of the cutting pattern formed on the A3 steel plate is 0.02cm-0.05 cm.
In order to better implement the invention, further, the thickness of the A3 steel plate is 0.05cm-0.2 cm.
In order to better implement the invention, further, the thickness of the A3 steel plate is 0.1 cm.
To better practice the invention, the neodymium magnet assembly further includes at least one neodymium magnet.
In order to better implement the present invention, when there are a plurality of neodymium magnets, a plurality of neodymium magnets with the same shape or different shapes are placed according to the size and position of the printed pattern.
In order to better implement the present invention, further, a neodymium magnet finished in place corresponding to the cut pattern on the A3 steel plate was fixed on one side of the A3 steel plate, and the other side of the A3 steel plate was provided with a printing material to be printed.
In order to better implement the invention, further, the magnetism determination method specifically comprises the following steps:
step S1: designing a cutting pattern according to the printing pattern;
step S2: forming a cutting pattern outlined by a seam on an A3 steel plate by means of penetration cutting;
step S3: designing an arrangement mode of the neodymium magnet assemblies according to the magnetization requirement of the printing ink and the area covered by the cutting pattern, and placing the neodymium magnet assemblies on one side of an A3 steel plate according to the designed arrangement mode;
step S4: arranging a printing material on the other side of the A3 steel plate away from the neodymium magnet assembly;
step S5: the magnetic optically variable ink is scraped onto the printing material in planar form with silk screen and under the action of partial shielding magnetic field the magnetic pigment in the magnetic optically variable ink is oriented.
In order to better implement the present invention, further, in step S3, the neodymium magnet in the neodymium magnet assembly is directly bonded to the A3 steel plate; alternatively, in step S3, the neodymium magnet of the neodymium magnet assembly is fixed in the frame, and then the frame is fixedly connected to the A3 steel plate.
In order to better implement the present invention, further, the penetrating cutting in step S2 is wire cutting or laser cutting.
A method for fixing magnetism of magnetic light variable ink is characterized in that in the printing process of the magnetic light variable ink, a Q235 steel plate with cutting patterns and a magnetic field shielding effect and a neodymium magnet assembly located on one side of the Q235 steel plate are adopted to form a magnetism fixing device, the magnetism fixing device is used for fixing magnetism of the magnetic light variable ink on a printing material through the magnetism of a part of the area effectively shielded, and the cutting patterns corresponding to the printing patterns are formed on the Q235 steel plate through a seam penetrating through a plate body.
Compared with the prior art, the invention has the following advantages and beneficial effects:
(1) the invention prints the magnetic optically variable ink by the fixed magnetic device which can effectively shield partial magnetic field, and the obtained printed pattern has obvious optically variable effect, brilliant effect and relief effect.
(2) According to the invention, the seam penetrating through the plate is processed on the A3 steel plate or the Q235 steel plate, so that the effects of partial shielding and partial penetration of the magnetic field are realized, the material is economical, the processing is convenient, and the overall processing cost is low.
Drawings
Fig. 1 shows a first distribution of magnetic optically variable ink on a sheet of paper.
FIG. 2 is a diagram illustrating the effect of the magnetic optically variable ink distributed on the paper of FIG. 1;
wherein FIG. 2a is the effect observed at viewing angle 1,
fig. 2b shows the effect observed at viewing angle 2.
Fig. 3 shows a second distribution of magnetic optically variable ink on a sheet of paper.
FIG. 4 is a graph showing the rolling effect of the light bands observed in the print of the magnetic optically variable ink distributed on the paper of FIG. 3;
where FIG. 4a is the effect of the light strip being in position 1,
fig. 4b shows the effect of the light strip in position 2.
FIG. 5 is a schematic diagram of a fixed magnetic arrangement of a print of magnetic optically variable ink to form a movable optical band effect.
Fig. 6 is a partial schematic view of an a3 steel sheet having a cut pattern of a panda pattern.
Fig. 7 is a schematic diagram of a panda pattern obtained by performing fixed magnetic printing on the magnetic optically variable ink by using a fixed magnetic device consisting of an a3 steel plate and a neodymium magnet assembly in fig. 6.
Fig. 8 is a schematic view of the optical variation effect of the arrow-shaped printed pattern.
Fig. 9 is a schematic diagram of the effect of the printing pattern of the 'certificate' word.
Wherein: 001-magnetic optically variable flakes; 002-a carrier; 003-paper; 004-pattern; 005-a fixed magnetic device; 006-magnetic line of force.
Detailed Description
Example 1:
a method for fixing magnetism of magnetic light-variable ink is characterized in that in the printing process of the magnetic light-variable ink, a A3 steel plate with cutting patterns and a magnetic field shielding function and a neodymium magnet assembly positioned on one side of the A3 steel plate are adopted to form a magnetism fixing device, the magnetism fixing device is used for fixing magnetism of the magnetic light-variable ink on a printing material, wherein the magnetic field of a part of the magnetism fixing device is effectively shielded, and the cutting patterns corresponding to the printing patterns are formed on the A3 steel plate through seams penetrating through a plate body.
The method for fixing magnetism is to use a magnetic fixing device consisting of an A3 steel plate with a cutting pattern and a neodymium magnet assembly to realize the printing of the magnetic light variable ink, and relies on the effective shielding of partial magnetic lines of force on the magnetic fixing device. The fixed magnetic device has the outstanding characteristics that the optically variable effect, the luster effect and the embossment effect of the magnetic optically variable ink printed pattern are obviously better than those of the existing ink printed pattern.
The A3 steel plate is a thin plate type A3 steel plate. The chemical components and mechanical properties of the A3 steel are basically the same as those of the Q235 steel, and both the A3 steel plate and the Q235 steel plate can effectively shield a magnetic field.
The cutting pattern on the a3 steel plate is generally obtained by means of wire cutting or laser cutting. The cutting pattern is formed by the seam left on the plate material by processing modes such as linear cutting or laser cutting.
The printing material is usually paper, silk cloth, etc.
The magnetic optically-variable ink adopts a finished product which can be directly purchased in the market, and the improvement point of the invention is not shown here, so the description is omitted.
The technology of arranging neodymium magnet assemblies in different forms according to different visual effects of printed patterns is the prior art, and the invention has the improvement point that the magnetization positioning mode is changed, but not the arrangement mode of the neodymium magnet assemblies, so the description is omitted.
Example 2:
the magnetism fixing method of the magnetic optically variable ink according to the embodiment 1 specifically comprises the following steps:
step S1: designing a cutting pattern according to the printing pattern;
step S2: forming a cutting pattern outlined by a seam on an A3 steel plate by means of penetration cutting;
step S3: designing an arrangement mode of the neodymium magnet assemblies according to the magnetization requirement of the printing ink and the area covered by the cutting pattern, and placing the neodymium magnet assemblies on one side of an A3 steel plate according to the designed arrangement mode;
step S4: arranging a printing material on the other side of the A3 steel plate away from the neodymium magnet assembly;
step S5: the magnetic optically variable ink is scraped onto the printing material in planar form with silk screen and under the action of partial shielding magnetic field the magnetic pigment in the magnetic optically variable ink is oriented.
That is, the present invention forms a fixed magnetic device by processing seams penetrating through a steel plate on an A3 steel plate having a function of shielding a magnetic field according to a designed printing pattern, forming a printing area unit by a set of seams corresponding to one printing pattern, designing a distribution pattern of neodymium magnet assemblies according to a position and a size of each printing area unit and a desired visual effect of the printing pattern, and fixing relative positions of neodymium magnets in the neodymium magnet assemblies and the A3 steel plate. Since the seams of the A3 steel plate were not shielded from the magnetic field and the other areas of the A3 steel plate were shielded from the magnetic field, this resulted in the desired magnetic field distribution on the other side of the steel plate where the neodymium magnets were placed. The side of the steel plate marked with a3 on which the neodymium magnet assembly is arranged is the a side, and the side opposite to the a side is the B side forming the desired magnetic field for arranging the printing material. After the fixed magnetic device is fixed, the magnetic optically variable ink is scraped on a printing material arranged on the B surface of an A3 steel plate in a planar mode by using a silk screen, the magnetic pigment in the magnetic optically variable ink is directionally arranged by an expected magnetic field, and an ink printing pattern obtained after the magnetic optically variable ink is solidified has an obvious gloss effect and a prominent relief effect.
In the fixed magnetic mode, the printing pattern can completely cover the cutting pattern formed by seams on the A3 steel plate, and the non-printing surface of the printing material is in contact with the A3 steel plate.
Other parts of this embodiment are the same as embodiment 1, and thus are not described again.
Example 3:
in this example, a panda-shaped printed pattern is first described in detail in example 2 or example 3. As shown in fig. 6, a fixed magnetic method for panda pattern printing using magnetic optically variable ink, firstly, a cutting pattern is designed according to the designed shape of panda, and a seam penetrating through a plate material is processed on an a3 steel plate according to the cutting pattern; then designing the arrangement mode of the neodymium magnet assemblies according to the expected visual effect, and fixing the neodymium magnets arranged according to the arrangement mode below an A3 steel plate; then, arranging a printing material such as paper on the upper surface of an A3 steel plate, and scraping the magnetic optically variable ink on the printing material in a planar form by using a silk screen, wherein the magnetic pigment in the magnetic optically variable ink is directionally arranged by an expected magnetic field; and obtaining an ink printing pattern with outstanding gloss effect and relief effect after the magnetic optically variable ink is solidified, as shown in fig. 7. The present embodiment adopts a fixed magnetic method, in which a magnetic field with a desired specific arrangement is formed on one side of a plate material to magnetize a part of pigment particles in the magnetic optically variable ink coated on the printing material to align in a desired orientation, and another part of the pigment particles are not affected by the magnetic field to maintain the original printing state.
The visual effect of printing the arrow pattern using the above-described fixed magnetic method is shown in fig. 8.
The visual effect of printing the pattern of the 'witness' word by the above-mentioned fixed magnetic method is shown in fig. 9.
Other parts of this embodiment are the same as those of embodiment 1 or embodiment 2, and thus are not described again.
Example 4:
a method for fixing magnetism of magnetic light variable ink is characterized in that in the printing process of the magnetic light variable ink, a Q235 steel plate with cutting patterns and a magnetic field shielding effect and a neodymium magnet assembly located on one side of the Q235 steel plate are adopted to form a magnetism fixing device, the magnetism fixing device is used for fixing magnetism of the magnetic light variable ink on a printing material through the magnetism of a part of the area effectively shielded, and the cutting patterns corresponding to the printing patterns are formed on the Q235 steel plate through a seam penetrating through a plate body.
The magnetism fixing method of the invention is to use a magnetism fixing device consisting of a Q235 steel plate with a cutting pattern and a neodymium magnet assembly to realize the printing of the magnetic light variable ink, and depends on the effective shielding of the magnetic lines of force of partial areas on the magnetism fixing device. The fixed magnetic device has the outstanding characteristics that the optically variable effect, the luster effect and the embossment effect of the magnetic optically variable ink printed pattern are obviously better than those of the existing ink printed pattern.
The Q235 steel plate is a thin plate type A3 steel plate. The chemical components and mechanical properties of the A3 steel are basically the same as those of the Q235 steel, and the Q235 steel plate can effectively shield a magnetic field.
The cutting pattern on the Q235 steel plate is generally obtained by processing through wire cutting or laser cutting. The cutting pattern is formed by the seam left on the plate material by processing modes such as linear cutting or laser cutting.
The printing material is usually paper, silk cloth, etc.
The magnetic optically-variable ink adopts a finished product which can be directly purchased in the market, and the improvement point of the invention is not shown here, so the description is omitted.
The technology of arranging neodymium magnet assemblies in different forms according to different visual effects of printed patterns is the prior art, and the invention has the improvement point that the magnetization positioning mode is changed, but not the arrangement mode of the neodymium magnet assemblies, so the description is omitted.
Example 5:
the magnetism fixing method of the magnetic optically variable ink according to the embodiment 4 comprises the following steps:
step S1: designing a cutting pattern according to the printing pattern;
step S2: forming a cutting pattern outlined by a seam on a Q235 steel plate in a penetrating cutting mode;
step S3: designing an arrangement mode of the neodymium magnet assemblies according to the ink magnetization requirement and the area covered by the cutting pattern, and placing the neodymium magnet assemblies on one side of a Q235 steel plate according to the designed arrangement mode;
step S4: arranging a printing material on the other side of the Q235 steel plate away from the neodymium magnet assembly;
step S5: the magnetic optically variable ink is scraped onto the printing material in planar form with silk screen and under the action of partial shielding magnetic field the magnetic pigment in the magnetic optically variable ink is oriented.
That is, the present invention processes seams penetrating through a steel plate on a Q235 steel plate having a magnetic field shielding function according to a designed printing pattern, a set of seams corresponding to one printing pattern form a printing area unit, designs the distribution mode of neodymium magnet assemblies according to the position and size of each printing area unit and the expected visual effect of the printing pattern, and fixes the relative positions of neodymium magnets in the neodymium magnet assemblies and the Q235 steel plate, thereby constituting a fixed magnetic device. Since the seams of the Q235 steel plate were not shielded from the magnetic field and the other areas of the Q235 steel plate were shielded from the magnetic field, a desired magnetic field distribution was formed on the other side of the steel plate where the neodymium magnets were disposed. The side of the Q235 steel plate on which the neodymium magnet assembly is arranged is the A side, and the side opposite to the A side is the B side which forms the expected magnetic field and is used for arranging the printing material. After the fixed magnetic device is fixed, the magnetic optically variable ink is scraped on a printing material arranged on the B surface of a Q235 steel plate in a planar mode by using a silk screen, the magnetic pigment in the magnetic optically variable ink is directionally arranged by an expected magnetic field, and an ink printing pattern obtained after the magnetic optically variable ink is solidified has an obvious gloss effect and a prominent relief effect.
Example 6:
the steel plate for shielding the magnetic field is A3 steel or Q235 steel, and the thickness of the steel plate is 0.05cm-0.2 cm. The thickness of the steel plate is insufficient, and the magnetic field cannot be effectively shielded; the thickness of the steel plate is too thick, which does not have an additional effect on shielding the magnetic field and increases the cost. Preferably, the thickness of the steel plate is 0.1cm, and the effect of shielding the magnetic field meets the requirement of most magnetic optically variable ink printing at the moment, and the cost of the steel for shielding the magnetic field is lower.
Other parts of this embodiment are the same as those of any of embodiments 1 to 5, and thus are not described again.
Example 7:
this example was further optimized on the basis of any of examples 1 to 6, and the width of the slit for forming the cut pattern on the steel sheet for shielding the magnetic field was 0.02cm to 0.05 cm. The seam width is large, and the contour line of the ink printing pattern with the relief effect is thick; the seam width is smaller and the contour line of the ink printing pattern with the relief effect is thinner. If the width of the seam is too small, the contour line of the ink printing pattern with the embossment effect is too thin, the lines of the contour line are not clear, the artistic aesthetic feeling of the printing pattern is also affected by the too thick lines of the contour line, and the width of the seam of the cutting pattern is usually 0.03 cm.
Other parts of this embodiment are the same as those of any of embodiments 1 to 6, and thus are not described again.
Example 8:
this example was further optimized on the basis of any of examples 1 to 7, and the number, relative positions, etc. of the neodymium magnets in the neodymium magnet assembly were designed according to the size of the area of the printed pattern, the visual effect to be expected, and the like. One printing pattern corresponds to one cutting pattern, and a group of neodymium magnet assemblies corresponding to one cutting pattern can be only one neodymium magnet or can comprise a plurality of neodymium magnets; and the set of neodymium magnet assemblies are arranged at positions corresponding to the positions of the cutting patterns. Furthermore, when a plurality of neodymium magnets are included in the neodymium magnet assembly, the plurality of neodymium magnets must be arranged on the same side of the steel plate.
Further, when a set of neodymium magnet assemblies includes a plurality of neodymium magnets, the plurality of neodymium magnets may be shaped differently.
Further, in order to ensure the quality of the printed pattern to be stable, the neodymium magnets corresponding to the positions of the cut patterns on the steel plate were fixed in position relative to the steel plate. Therefore, the neodymium magnets can be fixed on one side of the steel plate by means of bonding and the like, and can also be fixedly connected with the plate after being fixed at the frame fixing position.
Other parts of this embodiment are the same as those of any of embodiments 1 to 7, and thus are not described again.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and all simple modifications and equivalent variations of the above embodiments according to the technical spirit of the present invention are included in the scope of the present invention.
Claims (7)
1. A magnetism fixing method of magnetic optically variable ink is characterized in that: in the printing process of the magnetic optically variable ink, an A3 steel plate with cutting patterns and a magnetic shielding effect and a neodymium magnet assembly positioned on one side of the A3 steel plate are adopted to form a fixed magnetic device, the fixed magnetic device which effectively shields the magnetic field of a partial area is used for fixing magnetism of the magnetic optically variable ink on a printing material, wherein the A3 steel plate forms cutting patterns corresponding to the printing patterns through seams penetrating through a plate body;
a plurality of neodymium magnets with the same shape or different shapes are placed according to the size and the position of the printed pattern; the neodymium magnets, placed in correspondence with the cut patterns on the A3 steel plate, were fixed to one side of the A3 steel plate, and the other side of the A3 steel plate was provided with the print substrate to be printed.
2. The method for fixing magnetism of magnetic optically variable ink according to claim 1, wherein: the seam width of the cutting pattern formed on the A3 steel plate is 0.02cm-0.05 cm.
3. The method for fixing magnetism of magnetic optically variable ink according to claim 2, wherein: the thickness of the A3 steel plate is 0.05cm-0.2 cm.
4. The method for fixing magnetism of magnetic optically variable ink according to claim 3, wherein: the thickness of the A3 steel plate is 0.1 cm.
5. The method for fixing magnetism of magnetic optically variable ink according to any one of claims 1 to 4, wherein: the magnetism fixing method specifically comprises the following steps:
step S1: designing a cutting pattern according to the printing pattern;
step S2: forming a cutting pattern outlined by a seam on an A3 steel plate by means of penetration cutting;
step S3: designing an arrangement mode of the neodymium magnet assemblies according to the magnetization requirement of the printing ink and the area covered by the cutting pattern, and placing the neodymium magnet assemblies on one side of an A3 steel plate according to the designed arrangement mode;
step S4: arranging a printing material on the other side of the A3 steel plate away from the neodymium magnet assembly;
step S5: the magnetic optically variable ink is scraped onto the printing material in planar form with silk screen and under the action of partial shielding magnetic field the magnetic pigment in the magnetic optically variable ink is oriented.
6. The method for fixing magnetism of magnetic optically variable ink according to claim 5, wherein: in the step S3, the neodymium magnet in the neodymium magnet assembly is directly adhered to an A3 steel plate; alternatively, in step S3, the neodymium magnet of the neodymium magnet assembly is fixed in the frame, and then the frame is fixedly connected to the A3 steel plate.
7. A magnetism fixing method of magnetic optically variable ink is characterized in that: replacing the A3 steel plate used in the method of magnetism determination according to any one of claims 1 to 6 with a Q235 steel plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910452620.1A CN110143076B (en) | 2019-05-28 | 2019-05-28 | Magnetism fixing method for magnetic optically variable ink |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910452620.1A CN110143076B (en) | 2019-05-28 | 2019-05-28 | Magnetism fixing method for magnetic optically variable ink |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110143076A CN110143076A (en) | 2019-08-20 |
| CN110143076B true CN110143076B (en) | 2021-08-31 |
Family
ID=67593603
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910452620.1A Active CN110143076B (en) | 2019-05-28 | 2019-05-28 | Magnetism fixing method for magnetic optically variable ink |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110143076B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110744938A (en) * | 2019-11-19 | 2020-02-04 | 深圳新宏泽包装有限公司 | Pattern with three-dimensional effect and preparation method thereof |
| CN110949029A (en) * | 2019-12-04 | 2020-04-03 | 云南侨通包装印刷有限公司 | Method for manufacturing layered magnetic light and color diffusion effect |
| CN111942060A (en) * | 2020-08-25 | 2020-11-17 | 彭亮 | Relief light variable anti-fake element |
| CN112793323A (en) * | 2020-12-03 | 2021-05-14 | 深圳市众立生包装科技有限公司 | Printing method of magnetic optically variable ink |
| TWI760025B (en) * | 2020-12-23 | 2022-04-01 | 簡單綠能股份有限公司 | Mat with entertainment effect and method of making the same |
Family Cites Families (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5887075A (en) * | 1997-03-31 | 1999-03-23 | International Business Machines Corporation | Method, and apparatus and article of manufacture for filtering periodic noise from a magnetic read head |
| US7604855B2 (en) * | 2002-07-15 | 2009-10-20 | Jds Uniphase Corporation | Kinematic images formed by orienting alignable flakes |
| JP2002099873A (en) * | 2000-09-20 | 2002-04-05 | Koki Sakai | Reading system for shielded barcode data numerical value |
| US6808806B2 (en) * | 2001-05-07 | 2004-10-26 | Flex Products, Inc. | Methods for producing imaged coated articles by using magnetic pigments |
| JP2004108955A (en) * | 2002-09-19 | 2004-04-08 | Hitachi Ltd | Magnetic reader |
| CA2541568C (en) * | 2005-04-06 | 2014-05-13 | Jds Uniphase Corporation | Dynamic appearance-changing optical devices (dacod) printed in a shaped magnetic field including printable fresnel structures |
| DE602007000855D1 (en) * | 2006-10-17 | 2009-05-20 | Sicpa Holding Sa | METHOD AND MEANS FOR MAGNETIC TRANSMISSION RACHTE COATING COMPOSITION |
| PT2484455E (en) * | 2011-02-07 | 2015-03-18 | Sicpa Holding Sa | Device displaying a dynamic visual motion effect and method for producing same |
| CN102173247B (en) * | 2011-02-18 | 2014-03-26 | 甄健 | Method and device for preparing anti-counterfeiting pattern capable of symmetrically changing with visual angles |
| CN103481653B (en) * | 2013-09-24 | 2015-07-15 | 惠州市华阳光学技术有限公司 | Magnetic orientation device for magnetic pigment printing product and manufacturing device |
| CN203543324U (en) * | 2013-09-24 | 2014-04-16 | 惠州市华阳光学技术有限公司 | Magnetic orienting device and manufacturing device for printed matters with magnetic pigment |
| CN105082742B (en) * | 2015-06-03 | 2017-11-07 | 惠州市华阳光学技术有限公司 | A kind of magnetic orientation device and application apparatus |
| CN206520323U (en) * | 2016-12-01 | 2017-09-26 | 甄欣 | The system that optomagnetic pair of field forms safety design |
| CN106494077B (en) * | 2016-12-01 | 2020-06-30 | 甄欣 | System for forming safety pattern by photo-magnetic double field |
| EP3549769A4 (en) * | 2016-12-01 | 2020-10-14 | Ren, Lei | System for forming security pattern using optical and magnetic fields |
| CN108116036A (en) * | 2017-12-19 | 2018-06-05 | 佛山市高明金盾恒业电脑特种印刷有限公司 | A kind of special printing equipment |
| CN109109483A (en) * | 2018-07-20 | 2019-01-01 | 惠州市嘉信达科技有限公司 | A kind of 3D light becomes the control magnetic device and control magnetic technique of print coating |
| CN109720112A (en) * | 2018-11-21 | 2019-05-07 | 惠州市嘉信达科技有限公司 | A kind of slightly-embossed carving light of 3D magnetism becomes the printing process of reverse tone |
-
2019
- 2019-05-28 CN CN201910452620.1A patent/CN110143076B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN110143076A (en) | 2019-08-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110143076B (en) | Magnetism fixing method for magnetic optically variable ink | |
| US11504990B2 (en) | Security device formed by printing with special effect inks | |
| DE69613233T2 (en) | METHOD FOR PARTIAL PRINTING OF A SUBSTRATE | |
| EP2155498B1 (en) | Device and method for magnetically transferring indicia to a coating composition applied to a substrate | |
| KR101527987B1 (en) | Security device and method | |
| EP2121348B1 (en) | Security element for a valuable document | |
| AU2009278220B2 (en) | Safety element having incident and transmitted light information | |
| JP2005532907A5 (en) | ||
| PH12015502489B1 (en) | Security elements and methods and apparatus for their manufacture | |
| GB2039466A (en) | Identification cards | |
| GB2562262A (en) | Security devices and methods for their manufacture | |
| EA025147B1 (en) | Security element and method for producing same | |
| CN108790388A (en) | Optical devices with illusive optical effect and its manufacturing method | |
| CN101019153B (en) | Optically variable security element | |
| DE102013015277A1 (en) | Orientation of magnetically orientable particles in one color with several superimposed magnetic fields | |
| EP3507026A1 (en) | Orienting magnetically-orientable flakes | |
| CN109720112A (en) | A kind of slightly-embossed carving light of 3D magnetism becomes the printing process of reverse tone | |
| US20190039400A1 (en) | Security devices | |
| EP1389537B1 (en) | Forgery preventing printed matter having flip-flop or color flip-flop characteristic | |
| EP2606474B1 (en) | Verification of security elements with window and other item of information | |
| JP5533731B2 (en) | Latent image printed matter | |
| WO2022162380A1 (en) | Security devices and methods of manufacture thereof | |
| CN205044289U (en) | Manufacture equipment of magnetic ink printing article | |
| WO2024028574A1 (en) | Security devices and methods of manufacture thereof | |
| JP2023050917A (en) | anti-counterfeit printed matter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 611130 No. 189, Golden Road, Wenjiang District, Sichuan, Chengdu Patentee after: CHENGDU BANKNOTE PRINTING Co.,Ltd. Patentee after: China Banknote Printing and Minting Group Co.,Ltd. Patentee after: Chengdu Jinding Safety Printing Co.,Ltd. Address before: 611130 No. 189, Golden Road, Wenjiang District, Sichuan, Chengdu Patentee before: CHENGDU BANKNOTE PRINTING Co.,Ltd. Patentee before: CHINA BANKNOTE PRINTING AND MINTING Corp. Patentee before: Chengdu Jinding Safety Printing Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |