CN110050098A - The method for the water marked paper mask that the method and mask, manufacture for manufacturing water marked paper obtain and the method for verifying water marked paper - Google Patents
The method for the water marked paper mask that the method and mask, manufacture for manufacturing water marked paper obtain and the method for verifying water marked paper Download PDFInfo
- Publication number
- CN110050098A CN110050098A CN201780074963.8A CN201780074963A CN110050098A CN 110050098 A CN110050098 A CN 110050098A CN 201780074963 A CN201780074963 A CN 201780074963A CN 110050098 A CN110050098 A CN 110050098A
- Authority
- CN
- China
- Prior art keywords
- clear zone
- mask
- pixel
- watermark
- image
- 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.)
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Classifications
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F1/00—Wet end of machines for making continuous webs of paper
- D21F1/44—Watermarking devices
Abstract
Method for manufacturing safety paper, including being step below: making watermark using the mask (10) on the line for being attached to paper machine, the mask includes the network for forming the element (18) in clear zone in the watermark, the element (18) is connected by connecting element (15), the clear zone is arranged to the pixel of raster image, the connecting element is sufficiently thin, so that at least some of element (18) for being used to form clear zone leads to the formation of the pixel of the raster image, the pixel of the raster image with the naked eye looks like isolated pixel in transmitted light.
Description
Technical field
The present invention relates to the method for manufacturing the safety paper with watermark and it is related to thus obtained paper and file.
Background technique
Watermark has used in secure file field for a long time, and by changing in the manufacturing process of paper substrate
The thickness for becoming paper substrate, forms by fiber deposition technique and/or dehydration.
Many improvement are had been carried out to the manufacture of watermark.
The present invention relates more specifically to reproduce the watermark of half tone image.
Patent EP1122360 B1 and patent the EP1252389 B1 of applicant describes the side for manufacturing this watermark
Method, this watermark is by applicant with the watermark of brand name pixel (Pixel Watermark) sale.For manufacturing this watermark
Mask is usually obtained by processing or chemical etching metal plate.This technique makes it difficult to make high-precision mask, this is
Because rule of thumb, the spatial resolution of details is at least 0.8 times of thickness.Therefore, covering for 0.5 millimeter of (mm) thickness
The size of mould, interior producible hole is necessary at least 0.4 millimeter (mm).
Other publications, i.e. WO2010/036104 A1, WO2011/117828 A1 or even WO2011/081561
A1 is also related to the manufacture of such watermark.
Patent application WO2013/140126 A1 discloses a kind of mask for forming watermark by grid protocol, attached on grid
Have the element for being used to form watermark recovery.Seem to be disconnected from each other by the region that element is formed in watermark, this reproduce Ah
It is advantageous when drawing uncle's letter.There is no reproduce raster image in the disclosure.
The watermark and corresponding manufacturing method at least partly reproducing raster image are required further improvement, is especially improved
The safety provided by this watermark.
Summary of the invention
The present invention realizes the purpose by means of the method for manufacturing safety paper, and the method includes being step below
It is rapid:
Using the mask manufacture watermark on the line for being fixed to paper machine, the mask includes for the shape in the watermark
At the network of the element in clear zone, the element is connected by connecting element, and the clear zone is arranged to the pixel of raster image, institute
State that connecting element is sufficiently thin, so that at least some of element for being used to form clear zone leads to the shape of the pixel of the raster image
At the pixel of the raster image with the naked eye looks like isolated pixel in transmitted light.
It expresses " visually seeing " or " with the naked eye " refers to and existed in the case where no instrument by the human eye of twenty-twenty vision
Under daylight from the distance of 25 centimetres (cm).
The present invention allows to make visually attractive watermark, and allows to improve anti-fake safety, this is because
This watermark is difficult to imitate due to its potential fine definition.
Another advantage is that paper is allowed preferably to be dehydrated during its formation.
However, in the prior art, bridgeware or even frame will be placed and are welded to form line (the formation line has
Relative positioning corresponding with pattern to be reproduced) on various elements keep together, and when detect by an unaided eye watermark when still
So as it can be seen that in the present invention, certain elements of at least watermarking arrangements, which are visually seen, to be disconnected from each other, this allow to obtain it is new can
By visual effect that ordinary person perceives and extend the range of producible pattern.
The eye impressions of the mobility generated by the constituent element of pattern can be particularly used for improving aesthetic appearance.Watermark
It can be easier to be identified by ordinary person.Thus, it is possible to obtain the watermark of new type, the no longer feelings as the watermark of current pixel type
At least partly using the form of the grating of the grating or line to link together of the point to link together in condition, but using company
The form of the no longer visible or almost invisible point cloud of contact or line cloud.
Another theme of the invention is the mask for realizing formation watermark according to the method for the present invention, the formation water
The mask of print includes one group of element for being used to form clear zone, these elements are connected and for example in the form of a line by connecting element
The line of (in such as analogy bank note field be known as " intaglio plate " line) is arranged to the pixel of raster image, connecting element it is sufficiently thin and
It can't see in watermark, the element for being used to form clear zone with the naked eye looks like isolated picture in described image in transmitted light
Element.
Raster image
So-called " raster image ", it must be understood that for by the pixel being arranged in the grating with variable spacing and/or size
It is formed to reproduce the image of half tone image.Can according to the density of pixel, the size of pixel, the height of pixel and/or
The amplitude of pixel, or multiple " gray levels " are even reproduced according to paper local opacity in each pixel.This
In the case of, the multiple gray level preferably generates 3-D effect, such as anaglyph.
Raster image preferably shows monument, landscape, animal, plant or portrait.Particularly, raster image can show
Monument, landscape, animal, plant or portrait only a part.
As modification, raster image can show any geometry, especially form the background or background of another image
A part, another image such as monument, landscape, animal, plant or portrait.According to the modification, raster image allows
Aggravate another image.
Particularly, when detect by an unaided eye in transmitted light raster image when, the pixel of raster image cannot be distinguished from each other.It is special
Not, when enlargedly (for example, at least 10 times, preferably at least 20 times of amplification) observation raster image in transmitted light, grating
The pixel of image can be distinguished from each other.Therefore, the pixel of raster image forms secondary safety feature.
According to a modification, when detecting by an unaided eye in transmitted light, the pixel of raster image can be distinguished from each other, thus shape
At level-one security feature.
Pixel
So-called " pixel " refers to the individual element in watermark recovery, similar to the pixel of digital picture.
Pixel can have any shape, and it is preferable to employ the forms of point (especially to have round, ellipse or polygon
Point), perhaps using line form or using letter, alphanumeric character, ideograph or symbol form.Raster pattern
As may include pixel of various shapes.
The optical grating element of pixel formation raster image.
Raster image may include the pixel arranged with grating angle, that is, be arranged in the row angled with horizontal line
In.
The thickness of optical grating element can be between 200 microns (μm) and 1500 microns (μm).
In the case where pixel uses the form of line, the width (i.e. the width of line) of optical grating element can be greater than 50 μm, spy
It is not greater than 70 μm, preferably more than 100 μm.
In the case where pixel is using point, letter, alphanumeric character or ideograph, optical grating element (i.e. pixel) is most
Large scale (not including thickness) can be greater than 50 μm, particularly be greater than 70 μm, be preferably more than 100 μm.
Grating can be (i.e. pixel be uniformly distributed and the change in size of pixel) or the frequency modulation(PFM) of amplitude modulation
, or even frequency and amplitude modulation.Particularly, amplitude modulation can be carried out to grating from specific pixel size and connect
Get off to carry out frequency modulation(PFM).
Grating can be random, such as with fixed Pixel Dimensions, statistic frequency is variation, each to reproduce
Kind gray level.Pixel can according to amplitude geometry having the same, or as modification, the geometry of pixel can be with
Change with amplitude.
The arrangement of pixel is preferably automatically generated by software package in image.
Mask
Mask can be made of any suitable material, and be especially made of metal and/or plastics.
Mask includes thin connecting element.
These connecting elements do not leave or leave seldom visible trace in watermark since they are thin, and connect
And ensure to be used to form the intensity of the element of the visual pattern of watermark.The thickness of connecting element is preferably included in 20 μm and 200 μ
Between m, more preferably between 30 μm and 100 μm.The thickness of connecting element is preferably constant.
The width of connecting element is preferably included between 20 μm and 200 μm, more preferably between 30 μm and 100 μm.
The width of connecting element is preferably constant.
The width and thickness of connecting element is preferably included between 20 μm and 200 μm, more preferably in 30 μm and 100 μm
Between.The thickness and width of connecting element is preferably constant.
Connecting element is preferably elongated member.
Connecting element is preferably with grid arrangement.In this case, the smallest size l of the cell of grid can be big
In 300 μm, be expressly included in 300 μm between 5mm, be preferably included in 500 μm between 3mm.
Connecting element can be specifically arranged the element for being used to form clear zone connected at them base portion and top it
Between.Connecting element is preferably arranged between the base portion for the element for being used to form clear zone that they are connected or between top.
Be used to form the element in clear zone height can be on mask it is constant.As modification, it is used to form clear zone
The height of element be on mask it is variable, it is more or less dark in transmitted light to have an impact and to obtain to the formation of watermark
Pixel.
The element for being used to form clear zone is preferably made of material identical with connecting element.Particularly, it is used to form bright
The element and connecting element in area preferably form integral part, this provides bigger robustness for mask.
Mask can include the member for being used to form and (be arranged as the pixel of raster image) clear zone at least one area
Part, and be especially in use in not to be used to form at least one region for be formed another type of watermark and (be arranged as raster pattern
The pixel of picture) element in clear zone.Thus, it is possible to obtain being the watermark of mixture in certain aspects, the mixed watermark is by extremely
A few complete grating watermark and at least one conventional watermark (the masstone watermark such as obtained by embossment, such as coining water
Print or electrotype watermark) superposition and/or juxtaposition generate.From the point of view of visual angle, this " mixing " watermark is particularly attractive.Cause
This, the raster image of watermark according to the present invention can only form a part of pattern, and another part, particularly complementary portion are
Another type of watermark, the masstone watermark obtained especially by coining.When watermark formation image, souvenir is preferably formed
When upright stone tablet, landscape, animal, plant or portrait, this is particularly advantageous, because according to the first modification, watermark according to the present invention
A part of described image can be only formed, and another part, particularly complementary portion are formed by another type of watermark, it is special
It is not to be formed by the masstone watermark obtained by coining；And according to the second modification, masstone watermark, particularly pass through pressure
The masstone watermark that print obtains can form described image, and the background or background of another part, particularly described image
A part is formed by watermark according to the present invention.Then, the part formed by watermark according to the present invention is aggravated, or by root
Part or all of another part of exacerbation and prominent watermark is otherwise used for according to the part that watermark of the invention is formed.
Mask may include the multiple element for being used to form clear zone, and each element looks like the isolated pixel in image,
Preferably, at least one region of mask, the density of element is (cm every square centimeter2) comprising between 30 and 80
Element generates isolated pixel for example as many in image obtained.
Mask can include in a region be used to form and (be arranged as the pixel of raster image) element in clear zone, and
And in another area include the hole for being used to form the region for seeming more darker than the clear zone, this some holes is also arranged to grating
The pixel of image.The two regions for example correspond respectively to the clear zone and dark space of image.In between these two regions, watermark can be with
Region that is being connected including pixel corresponding to clear zone and no longer being isolated in the picture.It darker region can be with mulberry paper
Region opacity having the same, and even it is considered the miniature region of mulberry paper.
Be used to form clear zone at least one element can have less than or equal to 0.3mm, be expressly included in 0.1mm and
Full-size between 0.3mm.
Such level of detail is particularly advantageous, because it keeps the imitation to the watermark so obtained more difficult.
There is minimum dimension (not including thickness) if being used to form the element in clear zone, such as width is greater than 1mm, then it can be with
The very small hole of diameter (for example, the hole for being less than or equal to 0.3mm) is generated, to ensure the dehydration in the manufacturing process of paper
It is horizontal.
The element for being used to form clear zone can have the cross section of the grating traveling line amplitude modulation along image, this permission
Reproduce the optical grating point or grid stroke of variable size；And/or it is used to form the element in clear zone and can have grating row along image
The height of carry out amplitude modulation, this allows to generate the optical grating point or grid stroke with variable opacity.In the latter case,
Therefore not only can change the distribution of pixel but also can change local opacity, and therefore change transmitted light in pixel it is bright
Degree, this creates a possibility that new in terms of the FINAL APPEARANCE of watermark.
Be used to form the element in clear zone spatial frequency can be along at least one grating of image it is constant.With
It can even change along at least one grating of image in the spatial frequency for the element for forming clear zone.It is best in order to obtain
Image rendering, can be used in combination in the cross section for the element to form clear zone amplitude modulation, its height amplitude modulation and/or
The modulation of its spatial frequency.
Line
Line is a part of paper machine, and paper machine is used to form web by making the dewatering suspensions of paper-making fibre.
The paper machine can be the line of cylinder mould machine or fourdrinier machine.
Preferably, the paper machine is cylinder mould machine.
Advantageously, line includes the shell externally-oriented towards web in suspension, and mask-placement is in the shell
In.This allows to protect the opacity variation (distribution of dark space/clear zone) of mask, the positioning convenient for mask and optimization watermark.Institute
Stating shell can be formed and imprinting to line.As modification, mask can be arranged on online surface rather than at it
In groove, or can even it place on online " just " embossment.
Mask can be fixed on line by any suitable means, such as welded, particularly be soldered on line, or very
To bonding, crimps or be mechanically secured on line in other ways.
It can be with manufacturing line and mask, so that watermark includes at least one grating region and a non-grating area.This is related to for example
The juxtaposition of various types of watermarks and/or the coining of superposition, such as line and mask according to the present invention as described above.
Watermark can in the manufacturing process of watermark or other safety elements for being subsequently introduced into paper are (such as safe
Line, safety fibre or security sheet) it is used together.More generally, other than watermark, water marked paper according to the present invention be can wrap
Include any additional safety element.In additional safety element, certain is that can detect under naked eyes, daylight or artificial light
, without using any specific equipment.These safety elements are for example including color foil or fiber.These safety elements
Referred to as level-one safety element.
Other types of add-on security element can be used only relatively simple equipment and (such as emit ultraviolet light (UV) or infrared
The lamp or magnifying glass of line (IR)) it detects.These safety elements are for example including fiber, thin slice, particle or micro- text.These safety
Element can be it is macroscopic, or can be it is sightless, such as when by emit 365nm wavelength Wood light irradiation when be
Luminous.These safety elements are referred to as secondary safety element.
In order to be detected, other types of add-on security element needs more complicated detection device.These safety elements
Such as can they no matter while or while not influenced simultaneously by one or more external sources generate signal specific.
The automatic detection of signal allows to verify file in appropriate circumstances.These safety elements for example including using active material,
The tracer of grain or fibers form, when these tracers are through that can generate signal specific when light, electricity, magnetic or electromagnetic excitation.This
A little safety elements are referred to as three-level safety element.
The one or more add-on security elements being present in paper according to the present invention or secure file according to the present invention
It can have the security feature of level-one, second level and/or three-level.
Another theme of the invention is a kind of method for manufacturing mask according to the present invention, wherein is used to form bright
The element in area and optionally connecting element is manufactured using additive process.This allows to obtain may than machining or chemical etching
The higher resolution ratio of the resolution ratio of acquisition.
So-called " additive process " refers to the method for added material, with removal material method (such as machining or chemistry carve
Erosion) it is opposite.
Preferably, the element for being used to form clear zone and connecting element in appropriate circumstances pass through electro-deposition and carry out
Manufacture, this, which can permit, realizes resolution ratio more higher than chemical etching.
Adding method identical with the element for being used to form clear zone is preferably used to manufacture in connecting element, and therefore with
It is integrally formed in the element for forming clear zone.
If necessary, electro-deposition allows to easily realize the amplitude of the height for the element for being used to form clear zone
Variation, the variation can be it is continuous or discontinuous, to provide additional " grey " shade for watermark.
Electro-deposition allows to manufacture the element of mask with high precision.The isolated pixel of an about 0.1mm size can be obtained
Details, and can change the spacing between pixel so as to create degrade.The detail value of 0.2mm is particularly preferred to be suitable for paper base
The permitted resolution ratio of matter.Maximum element preferably has less than or the size equal to 0.8mm.More than the value, element is preferably
It manufactures into very small drainage hole, such as diameter includes the drainage hole between 0.2mm and 1mm.
Most subtle details can be formed in the region of watermark in transmitted light by light.
Another theme of the invention is water marked paper, should especially by the water marked paper for realizing that method as described above obtains
Water marked paper includes the watermark with clear zone, and the clear zone is arranged to the pixel of raster image, which includes at least one
A clear zone for the naked eye looking like the isolated pixel in image in transmitted light.Watermark may include multiple this clear zones.
Watermark may include that pixel corresponding at least one clear zone is no longer isolated but connected region.Watermark
It may include even at least one with the region with isolated pixel more darker than clear zone, these darker pixels are arranged to
The pixel of raster image.
Watermark is preferably only formed by the clear zone for being arranged as the pixel of raster image.
Watermark may include the region with following clear zone density, and each clear zone looks like every square centimeter in transmitted light
Comprising the isolated pixel between 30 and 80, which preferably occupies more than 20 square millimeters (mm in watermark2)。
Another theme of the invention is a kind of method for verifying water marked paper according to the present invention, including in transmitted light
Watermark is checked to detect the presence of raster image, especially along the grid line of image, the pixel of the raster image seems
It is in the images at least one isolated pixel and preferably in the images with the clear zone of multiple isolated pixels.
The present invention can be used for manufacturing any kind of secure file, such as bank note, passport and other identification documents or have
Value document.
Detailed description of the invention
By reading the detailed description of the non-limiting example of following embodiments of the present invention, and it is attached by checking
Figure, may be better understood the present invention, in which:
Figure 1A to Fig. 1 E shows the details of the mask according to the present invention for forming watermark；
Fig. 2 a to Fig. 2 c is the exemplary cross section of mask according to the present invention；
Fig. 3 shows the example of mask according to the present invention；
Fig. 4 shows generated image when observing watermark in transmitted light；
Fig. 5 shows the details of Fig. 4；
Fig. 5 a and Fig. 5 b respectively illustrate another example of mask according to the present invention and ought observe watermark in transmitted light
When generated image；And
Fig. 6 shows the placement in the online shell of mask according to the present invention.
Specific embodiment
Fig. 3 shows the example of mask 10 according to the present invention.The mask includes the connecting element 15 with grid arrangement,
The grid is for example with the grid cell for constant cross-section, and each grid is square or rectangle in shown example
's.As modification, connecting element 15 is not with grid arrangement.
Figure 1A shows an example of mask.
Connecting element 15 connects the isolated element 18 for being used to form clear zone, which is arranged to the pixel of raster image.
These elements 18 for being used to form clear zone have full-size w.
Element 18 can be placed on the grid formed by connecting element 15 intersection or other places.
Figure 1B to Fig. 1 E shows the pixel that the image component of non-circular profile can be used.
The image component of non-circular profile can be polygonal element, for example, rectangular element as shown in fig. 1b, such as scheming
Linear element shown in 1C or L shape element as shown in Figure 1 D.It as referring to figure 1E, can be in the grid of same holding
There is different geometries on element 18.
The minimum dimension l of cell be greater than 300 μm, particularly included in 300 μm between 5mm, preferably include
At 500 μm between 3mm.
With reference to Fig. 2 a to Fig. 2 c, it can be seen that the thickness e of connecting element 15gLess than the element 18 for being used to form clear zone
Thickness ee.Connecting element 15 can form the line of orthogonal crossover.Some lines can be parallel to the grating orientation of image, and these
Spacing between line can correspond to the spacing between the grating in image.
As shown in Fig. 2 b and Fig. 2 c, it is used to form the height e of the element 18 in clear zoneeIt can change on mask 10.This
It can permit the pixel for obtaining stronger or weaker brightness, which increase the quantity for the parameter that can change to reproduce image.
The variation for being used to form the height of the element 18 in clear zone can cause to be more difficult to reproduce watermark.
In the example shown in Fig. 2 a to Fig. 2 c, seen from above, there is the element 18 for being used to form clear zone basis to scheme
The size of optical grating point that is reproduced as in and along the cross section of grating variation.
Connecting element 15 connects the base portion for being used to form the element 18 in clear zone, as shown in Fig. 2 a to Fig. 2 c.As modification, even
It connects element 15 and connects the top for being used to form the element 18 in clear zone.
Base portion or the top for being used to form the element 18 in clear zone are connected the present invention is not limited to connecting element 15.Specifically, even
Connect element 15 can be connected at the point other than the base portion of the element 18 in addition to being used to form clear zone or top this be used to form it is bright
The element 18 in area.As modification, various specific conditions can be combined, i.e., connecting element 15 is via the element 18 for being used to form clear zone
Base portion and/or top and/or other connecting elements 18.
As can be seen that the particular element 18 for being used to form the clear zone of mask is isolated, and in the watermark of acquisition 30
The clear zone for looking like isolated pixel 20 is generated, such as shown in Fig. 4 and Fig. 5.The case where this is, for example, hair rear portion.
Region 21 around pixel 20 can have thickness identical with mulberry paper region 31.Fig. 6, which is shown, receives mask 10
Line T may include shell 100.
In a housing 100 by the arrangement of mask 10, connecting element 15 is against the flat bottom (Fig. 6) of shell 100 or at least one
It is used to form the flat bottom of the element 18 against shell 100 in clear zone a bit.
According to a modification, all elements 18 for being used to form clear zone and/or all connecting elements 15 are against shell 100
Flat bottom.It particularly, when the element 18 for being used to form clear zone has variable height, such as can not be plane by bottom
Shell 100 and/or realize this configuration by (following the embossment for the element for being used to form clear zone) connecting element.
These examples that the present invention is not limited to have been given.
Particularly, one or more watermarks according to the present invention can be arranged on paper, so as to (all with other safety elements
Such as line or foil) interaction.
The paper can be based on natural fiber and/or synthetic fibers.Preferably, the paper includes natural fiber, such as sub-
Flaxen fiber and/or cotton fiber, particularly velveteen.
The paper can be single-layer or multi-layer.In the case of multiple layers, each layer can be colored differently.
Claims (according to the 19th article of modification of treaty)
1. a kind of method for manufacturing safety paper, including it is step below:
Watermark is made using the mask (10) on the line for being fixed to paper machine, the mask includes for the shape in the watermark
At the network of the element (18) in clear zone, the element is connected by connecting element (15), and the clear zone is arranged to raster image
Pixel, the connecting element is sufficiently thin, so that at least some of element (18) for being used to form clear zone leads to the grating
The pixel of the formation of the pixel of image, the raster image with the naked eye looks like isolated pixel in transmitted light.
2. the method as described in claim 1, the pixel using point form, especially with have round, ellipse or
The form of the point of polygon.
3. the method as described in claim 1, the pixel uses the form of line, or uses letter, alphanumeric character, table
The form of text of anticipating or symbol.
4. method according to any one of claims 1 to 3, the line is the line of cylinder mould.
5. method as described in any one of the preceding claims, the line (T) includes shell (100), and the mask
(10) it is disposed in the shell.
6. method as claimed in claim 5, the shell is formed by imprinting the line.
7. method as described in any one of the preceding claims, the mask is welded or soldered on the line.
8. the method as described in any one of claims 1 to 7 makes the line and the mold, so that the watermark includes
At least one grating region and a non-grating area.
9. method as described in any one of the preceding claims is used to form the height (e of the element (18) in clear zonee)
It is constant on the mask.
10. being used to form the height (e of the element (18) in clear zone such as method described in any item of the claim 1 to 8e)
It is variable on the mask.
11. a kind of mask for forming watermark, for realizing the method as described in any one of claims 1 to 10, the formation
The mask of watermark includes one group of element (18) for being used to form clear zone, and the element for being used to form clear zone is connected by connecting element
The pixel of raster image is connect and is arranged to, the connecting element (15) is sufficiently thin and can't see in the watermark, is used for
The element in formation clear zone leads to the formation of the pixel of the raster image, and the pixel of the raster image is used in transmitted light
Naked eyes look like the isolated pixel in described image.
12. the mask as described in previous item claim is used to form the height of the element (18) in clear zone in the mask
On be constant.
13. mask as claimed in claim 11, the height for being used to form the element (18) in clear zone are on the mask
Variable.
14. the mask as described in any one of claim 11 to 13 includes being arranged as raster image at least one area
The pixel the element (18) for being used to form clear zone, and at least one other region do not include being arranged as raster pattern
The element for being used to form clear zone of the pixel of picture.
15. the mask as described in any one of claim 11 to 14, including multiple elements (18) for being used to form clear zone, each
The element for being used to form clear zone looks like isolated pixel in described image, it is preferable that at least one area of the mask
In domain, be used to form the element (18) in clear zone density be it is every square centimeter include 30 to 60 elements.
16. the mask as described in any one of claim 11 to 15, at least one is used to form the element (18) in clear zone
With being less than or equal to 0.3 millimeter, the full-size (w) that is expressly included between 0.1 millimeter and 0.3 millimeter.
17. the mask as described in any one of claim 11 to 16, be used to form clear zone the element (18) have along
The cross section of the grating traveling line amplitude modulation of described image.
18. the mask as described in any one of claim 11 to 17, be used to form clear zone the element (18) have along
Height (the e of the grating traveling line amplitude modulation of described imagee)。
19. the mask as described in any one of claim 11 to 18 is used to form the space frequency of the element (18) in clear zone
Rate is constant along at least one grating of described image.
20. the mask as described in any one of claim 11 to 18 is used to form the space frequency of the element (18) in clear zone
Rate is variable along at least one grating of described image.
21. the mask as described in any one of claim 11 to 20, the connecting element (15) have be included in 30 microns and
Thickness (e between 200 micronsg)。
22. a kind of method for manufacturing the mask as described in any one of claim 11 to 21, wherein use addition legal system
Act on the element (18) to form clear zone, be used to form clear zone the element cause the raster image pixel shape
At the pixel of the raster image with the naked eye looks like the isolated pixel in described image in transmitted light.
23. a kind of water marked paper, the watermark obtained especially by the method implemented as described in any one of claims 1 to 10
Paper, the water marked paper include the watermark (30) with clear zone, and the clear zone is arranged to the pixel of raster image, the raster pattern
As including that at least one with the naked eye looks like the clear zone of the isolated pixel (20) in described image in transmitted light.
24. water marked paper as claimed in claim 23, the watermark is only by being arranged to the clear zone of the pixel of raster image
It is formed.
25. the water marked paper as described in claim 23 or 24, the watermark includes multiple clear zones, and each clear zone looks like described
Isolated pixel (20) in image, the watermark particularly include the region with following clear zone density, and each clear zone is transmiting
Looking like under light every square centimeter includes 30 to 80 isolated pixels, which, which preferably occupies in the watermark, is more than
20 square millimeters.
26. a kind of method for verifying the water marked paper as described in any one of claim 23 to 25, including in transmitted light
The watermark is checked to detect the presence of raster image, especially along the grating row of described image, the raster image
The pixel (20) with the naked eye looks like at least one isolated pixel in described image and preferably described image
In multiple isolated pixels clear zone.
Claims (26)
1. a kind of method for manufacturing safety paper, including it is step below:
Watermark is made using the mask (10) on the line for being fixed to paper machine, the mask includes for the shape in the watermark
At the network of the element (18) in clear zone, the element is connected by connecting element (15), and the clear zone is arranged to raster image
Pixel, the connecting element is sufficiently thin, so that at least some of element (18) for being used to form clear zone leads to the grating
The pixel of the formation of the pixel of image, the raster image with the naked eye looks like isolated pixel in transmitted light.
2. the method as described in claim 1, the pixel using point form, especially with have round, ellipse or
The form of the point of polygon.
3. the method as described in claim 1, the pixel uses the form of line, or uses letter, alphanumeric character, table
The form of text of anticipating or symbol.
4. method according to any one of claims 1 to 3, the line is the line of cylinder mould.
5. method as described in any one of the preceding claims, the line (T) includes shell (100), and the mask
(10) it is disposed in the shell.
6. method as claimed in claim 5, the shell is formed by imprinting the line.
7. method as described in any one of the preceding claims, the mask is welded or soldered on the line.
8. the method as described in any one of claims 1 to 7 makes the line and the mold, so that the watermark includes
At least one grating region and a non-grating area.
9. method as described in any one of the preceding claims is used to form the height (e of the element (18) in clear zonee)
It is constant on the mask.
10. being used to form the height (e of the element (18) in clear zone such as method described in any item of the claim 1 to 8e)
It is variable on the mask.
11. a kind of mask for forming watermark, for realizing the method as described in any one of claims 1 to 10, the formation
The mask of watermark includes one group of element (18) for being used to form clear zone, and the element for being used to form clear zone is connected by connecting element
The pixel of raster image is connect and is arranged to, the connecting element (15) is sufficiently thin and can't see in the watermark, is used for
The element in formation clear zone leads to the formation of the pixel of the raster image, and the pixel of the raster image is used in transmitted light
Naked eyes look like the isolated pixel in described image.
12. the mask as described in previous item claim is used to form the height of the element (18) in clear zone in the mask
On be constant.
13. the mask as described in any one of claim 11 and 12, the height for being used to form the element (18) in clear zone exists
It is variable on the mask.
14. the mask as described in any one of claim 11 to 13 includes being arranged as raster image at least one area
The pixel the element (18) for being used to form clear zone, and at least one other region do not include being arranged as raster pattern
The element for being used to form clear zone of the pixel of picture.
15. the mask as described in any one of claim 11 to 14, including multiple elements (18) for being used to form clear zone, each
The element for being used to form clear zone looks like isolated pixel in described image, it is preferable that at least one area of the mask
In domain, be used to form the element (18) in clear zone density be it is every square centimeter include 30 to 60 elements.
16. the mask as described in any one of claim 11 to 15, at least one is used to form the element (18) in clear zone
With being less than or equal to 0.3 millimeter, the full-size (w) that is expressly included between 0.1 millimeter and 0.3 millimeter.
17. the mask as described in any one of claim 11 to 16, be used to form clear zone the element (18) have along
The cross section of the grating traveling line amplitude modulation of described image.
18. the mask as described in any one of claim 11 to 17, be used to form clear zone the element (18) have along
Height (the e of the grating traveling line amplitude modulation of described imagee)。
19. the mask as described in any one of claim 11 to 18 is used to form the space frequency of the element (18) in clear zone
Rate is constant along at least one grating of described image.
20. the mask as described in any one of claim 11 to 18 is used to form the space frequency of the element (18) in clear zone
Rate is variable along at least one grating of described image.
21. the mask as described in any one of claim 11 to 20, the connecting element (15) have be included in 30 microns and
Thickness (e between 200 micronsg)。
22. a kind of method for manufacturing the mask as described in any one of claim 11 to 21, wherein use addition legal system
Act on the element (18) to form clear zone, be used to form clear zone the element cause the raster image pixel shape
At the pixel of the raster image with the naked eye looks like the isolated pixel in described image in transmitted light.
23. a kind of water marked paper, the watermark obtained especially by the method implemented as described in any one of claims 1 to 10
Paper, the water marked paper include the watermark (30) with clear zone, and the clear zone is arranged to the pixel of raster image, the raster pattern
As including that at least one looks like the clear zone of the isolated pixel (20) in described image in transmitted light.
24. water marked paper as claimed in claim 23, the watermark is only by being arranged to the clear zone of the pixel of raster image
It is formed.
25. the water marked paper as described in claim 23 or 24, the watermark includes multiple clear zones, and each clear zone looks like described
Isolated pixel (20) in image, the watermark particularly include the region with following clear zone density, and each clear zone is transmiting
Looking like under light every square centimeter includes 30 to 80 isolated pixels, which, which preferably occupies in the watermark, is more than
20 square millimeters.
26. a kind of method for verifying the water marked paper as described in any one of claim 23 to 25, including in transmitted light
The watermark is checked to detect the presence of raster image, especially along the grating row of described image, the raster image
The pixel (20) looks like at least one isolated pixel in described image and preferably more in described image
The clear zone of a isolated pixel.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1661873 | 2016-12-02 | ||
| FR1661873A FR3059682B1 (en) | 2016-12-02 | 2016-12-02 | METHOD FOR MANUFACTURING A WATERMARK PAPER |
| PCT/EP2017/081175 WO2018100150A1 (en) | 2016-12-02 | 2017-12-01 | Method and mask for manufacturing a watermarked paper, method for manufacturing the obtained watermarked paper mask and method for authenticating the watermarked paper |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110050098A true CN110050098A (en) | 2019-07-23 |
| CN110050098B CN110050098B (en) | 2022-02-11 |
Family
ID=58779083
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201780074963.8A Active CN110050098B (en) | 2016-12-02 | 2017-12-01 | Method for manufacturing watermark paper, mask, method for manufacturing mask, and method for verifying watermark paper |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP3548663A1 (en) |
| KR (1) | KR102556073B1 (en) |
| CN (1) | CN110050098B (en) |
| BR (1) | BR112019010857B1 (en) |
| FR (1) | FR3059682B1 (en) |
| RU (1) | RU2748464C2 (en) |
| WO (1) | WO2018100150A1 (en) |
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| US20010018113A1 (en) * | 2000-02-01 | 2001-08-30 | Stephane Mallol | Paper including a multitone-effect watermark, and a wire for manufacturing the paper |
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| CN104204346A (en) * | 2012-03-19 | 2014-12-10 | 德拉鲁国际公司 | Electrotype for forming an image during a paper making process |
| CN104213452A (en) * | 2014-09-18 | 2014-12-17 | 成都印钞有限公司 | Non-woven watermark net for obtaining high-definition watermark and manufacturing method of watermark net |
| CN104562824A (en) * | 2015-01-04 | 2015-04-29 | 昆山钞票纸业有限公司 | White watermark mould plate, white watermark cylinder mould and prepared anti-counterfeit paper |
| DE102014001063A1 (en) * | 2014-01-28 | 2015-07-30 | Giesecke & Devrient Gmbh | Drainage screen for the production of paper with a watermark |
| EP2947202A1 (en) * | 2014-05-21 | 2015-11-25 | Landqart AG | Safety paper with watermark |
| GB2532084A (en) * | 2014-11-10 | 2016-05-11 | De La Rue Int Ltd | Improvments in watermarking |
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| AT379768B (en) | 1983-04-01 | 1986-02-25 | Voest Alpine Ag | DEVICE FOR SPOT WELDING, IN PARTICULAR FOR FASTENING SMALL PARTS ON A WORKPIECE |
| FR2804448B1 (en) | 2000-02-01 | 2002-04-05 | Arjo Wiggins Sa | SECURITY PAPER COMPRISING A SECURITY ZONE, METHOD FOR PRODUCING SUCH PAPER AND DEVICE FOR CARRYING OUT SAID METHOD |
| WO2010036104A1 (en) | 2008-09-26 | 2010-04-01 | Vhp Veiligheidspapierfabriek Ugchelen B.V. | Method for producing a watermark element, watermark element, and also applications |
| RU2407648C1 (en) | 2009-12-28 | 2010-12-27 | Федеральное Государственное Унитарное Предприятие "Гознак" (Фгуп "Гознак") | Counterfeit-proof paper including water signs with multitone effect, and mesh to produce this paper |
| FR2957943B1 (en) | 2010-03-24 | 2021-11-05 | Arjowiggins Security | WATERMARK, METHODS FOR MANUFACTURING A PART FOR THE FORMATION OF A WATERMARK AND PART OBTAINED ACCORDING TO THIS PROCEDURE |
| DE102014008752A1 (en) * | 2014-06-12 | 2015-12-17 | Giesecke & Devrient Gmbh | Injection molding tool and embossing stick for use in the production of watermark paper |
-
2016
- 2016-12-02 FR FR1661873A patent/FR3059682B1/en active Active
-
2017
- 2017-12-01 WO PCT/EP2017/081175 patent/WO2018100150A1/en active Application Filing
- 2017-12-01 CN CN201780074963.8A patent/CN110050098B/en active Active
- 2017-12-01 EP EP17804922.7A patent/EP3548663A1/en active Pending
- 2017-12-01 KR KR1020197015842A patent/KR102556073B1/en active IP Right Grant
- 2017-12-01 RU RU2019115980A patent/RU2748464C2/en active
- 2017-12-01 BR BR112019010857-2A patent/BR112019010857B1/en active IP Right Grant
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20010018113A1 (en) * | 2000-02-01 | 2001-08-30 | Stephane Mallol | Paper including a multitone-effect watermark, and a wire for manufacturing the paper |
| CN101377062A (en) * | 2008-10-07 | 2009-03-04 | 中国印钞造币总公司 | Anti-fake paper with contrasting watermark and making method thereof |
| CN104204346A (en) * | 2012-03-19 | 2014-12-10 | 德拉鲁国际公司 | Electrotype for forming an image during a paper making process |
| DE102014001063A1 (en) * | 2014-01-28 | 2015-07-30 | Giesecke & Devrient Gmbh | Drainage screen for the production of paper with a watermark |
| EP2947202A1 (en) * | 2014-05-21 | 2015-11-25 | Landqart AG | Safety paper with watermark |
| CN104213452A (en) * | 2014-09-18 | 2014-12-17 | 成都印钞有限公司 | Non-woven watermark net for obtaining high-definition watermark and manufacturing method of watermark net |
| GB2532084A (en) * | 2014-11-10 | 2016-05-11 | De La Rue Int Ltd | Improvments in watermarking |
| CN104562824A (en) * | 2015-01-04 | 2015-04-29 | 昆山钞票纸业有限公司 | White watermark mould plate, white watermark cylinder mould and prepared anti-counterfeit paper |
Also Published As
| Publication number | Publication date |
|---|---|
| FR3059682A1 (en) | 2018-06-08 |
| FR3059682B1 (en) | 2020-10-30 |
| RU2019115980A3 (en) | 2021-01-11 |
| KR102556073B1 (en) | 2023-07-14 |
| KR20190089898A (en) | 2019-07-31 |
| EP3548663A1 (en) | 2019-10-09 |
| CN110050098B (en) | 2022-02-11 |
| RU2019115980A (en) | 2021-01-11 |
| BR112019010857B1 (en) | 2023-10-03 |
| RU2748464C2 (en) | 2021-05-25 |
| WO2018100150A1 (en) | 2018-06-07 |
| BR112019010857A2 (en) | 2019-10-01 |
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