CN1600988A

CN1600988A - Anti-fraud material

Info

Publication number: CN1600988A
Application number: CNA2004100096034A
Authority: CN
Inventors: 孙显林
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-09-24
Filing date: 2004-09-24
Publication date: 2005-03-30
Also published as: MX2007003450A; BRPI0517324A; EP1793039A1; JP2008520754A; EA011271B1; AU2005287753A1; KR100915724B1; WO2006032212A1; EA200700675A1; ZA200703314B; US20080053633A1; EP1793039A4; KR20070061890A; CA2581858A1

Abstract

An antifraud material is featured as distributing antifraud fibre on partial surface of the antifraud material, having concave-convex sheltering structure of the partial surface, setting two-character drawing A and Bon the structure to have obvious visual difference, seeing character drawing A and B separately at time of viewing the partial surface from different angles.

Description

A kind of anti-fake material

Technical field

The present invention relates to a kind of anti-fake material such as cheque paper or false-proof film or anti-counterfeit package, particularly a kind of anti-fake material that is distributed with anti-false fiber.

Background technology

Colored fibre adds the history that paper manufactures the existing last 100 years of cheque paper, is still using in the bank note of many countries so far, and some marketable securities, tax invoice, product description, printed label also have application.Conclude anti-false fiber single monochromatic fiber is arranged.Described in the Chinese patent 02168121.0 " a kind of anti-false fiber " is a kind of single multi-color section fibre, promptly a fiber along its length on have two kinds of colors at least.Also have described in the Chinese patent 02170092.4 " a kind of anti-false fiber and adopt the cheque paper of this fiber " is the heterochromatic fiber of a kind of positive and negative, the cross section that is fiber is an ellipse garden shape, ellipse garden shape is to there being two surfaces up and down of fiber, two lip-deep colors have tangible difference, when making cheque paper in this kind fiber adding paper pulp, because the interaction of paper fiber, ellipse garden shape can be parallel to paper in two surfaces up and down, when paper is thin or more transparent, observe same fiber, one side at paper is a kind of color, and the another side of paper is another kind of color.But the defective of above-mentioned colored fibre is existing printing fine line all can imitate its visual effect, is to be fiber or printing fine line on earth in order accurately to distinguish, and only tears paper or chooses the fiber observation with pin.This is not only inconvenient, and is indestructible such as commodity such as bank note, marketable securities, so its antifalse effect just is very restricted, the fake producer is easy to get by under false pretences when often copying with printing fine line.

Chinese patent 02146589.4 " a kind of anti-fake material and adopt the security document of this anti-fake material ", wherein relating to a kind of anti-false fiber is the filament with axial length and cross section circle or sub-circular, it is characterized in that described filament cross section contains two or more color, the axial color segment at described every kind of color place is shape extension in the shape of a spiral vertically.Observe in any change angle, the ordinary people all can't feel the change of fiber characteristics pattern with naked eyes, so it remains a visual signature that is equal to plane pattern, in the direct distinguishable precision of naked eyes, meticulousr mode of printing still can imitate.

Summary of the invention

The purpose of this invention is to provide a kind of anti-fake material, be distributed with anti-false fiber in this anti-fake material,, can observe the different characteristic pattern of fiber, make existing printing technology can't imitate its visual signature by changing to the fiber viewing angle.

Another object of the present invention provides a kind of anti-false fiber, when its unique portion surface is presented at least one face of anti-fake material, can make the observer can see characteristic patterns different on this unique portion respectively alone from different perspectives at this face, thereby be used for anti-fake material, existing printing technology can't be imitated.

Other purposes of the present invention provide multiple anti-false fiber, the unique portion surface of these anti-false fibers can be presented at least one face of anti-fake material in the manufacture process of anti-fake material naturally, this unique portion makes the observer can see characteristic patterns different on this unique portion respectively alone from different perspectives at this face, thereby be used for anti-fake material, existing printing technology can't be imitated.

First purpose of the present invention is achieved like this: a kind of anti-fake material, be distributed with anti-false fiber on it, the part surface of described anti-false fiber is presented on the described anti-fake material surface, it is characterized in that described part surface has concavo-convex barrier structure, be distributed with at least two characteristic pattern A and B on it, described at least two characteristic pattern A and B have tangible vision difference on described part surface, make when on presenting the anti-fake material surface of described part surface, observing described part surface from different perspectives, can see characteristic pattern A and B respectively.

At least two the characteristic pattern A and the B of the anti-false fiber that distributes in the anti-fake material of the present invention are included in the characteristic pattern that manifests such as under visible light, ultraviolet ray, infrared ray and other non-visible lights, for the characteristic pattern that manifests under the visible light, anti-fake material of the present invention can realize that a line is false proof, and is promptly popular false proof; For the characteristic pattern that manifests under ultraviolet ray, infrared ray and other non-visible lights, then the available dedicated instrument is judged, can realize that the two wires is false proof.Owing on the very thin anti-false fiber that distributes in the anti-fake material of the present invention concavo-convex barrier structure is set, and concavo-convex barrier structure is positioned on the described part surface of anti-false fiber, and this part surface can be presented at least one surface of anti-fake material, described at least two characteristic pattern A and B have tangible vision difference on described part surface, therefore the observer observes from these lip-deep different angles of anti-fake material, because blocking of concaveconvex structure, can see the characteristic pattern of part surface respectively, have antifalse effect.Because this vision difference is to be blocked by concaveconvex structure by the pattern characteristics that distributes on the anti-false fiber part surface in the anti-fake material to cause, in any case and printing technology accurately also can't be counterfeit goes out this stereochemical structure, so the present invention can effectively stop the counterfeit of printing technology.

At least two characteristic pattern A of the anti-false fiber that distributes in the anti-fake material of the present invention and B are blocked by concavo-convex barrier structure and are seen that respectively the vision difference of generation is diversified, can be: present and have at least two viewing angle a and b on the anti-fake material surface of described part surface, when a angle is observed the described part surface of anti-false fiber, see characteristic pattern A and characteristic pattern B is blocked by the concavo-convex barrier structure on the described part surface of anti-false fiber and cannot see, when the b angle is observed the described part surface of anti-false fiber, see characteristic pattern B and characteristic pattern A is blocked by the concavo-convex barrier structure on the described part surface of anti-false fiber and cannot see; Also can be that a certain characteristic pattern can not be blocked and another pattern characteristics can be blocked fully and produces different visual effects fully; Can also be because of being blocked in visual transform along fibre length direction jumping characteristic.To be elaborated to each species diversity at accompanying drawing in an embodiment.

Another object of the present invention is achieved in that a kind of anti-false fiber that embeds in the above-mentioned anti-fake material, part surface with a surface that can be presented on described anti-fake material, it is characterized in that: described part surface has concavo-convex barrier structure, be distributed with at least two characteristic pattern A and B on it, characteristic pattern A and B have tangible vision difference on described part surface, make when on presenting the anti-fake material surface of described part surface, observing described part surface from different perspectives, can see characteristic pattern A and B respectively.Because anti-false fiber of the present invention is provided with concaveconvex structure, and concaveconvex structure is arranged on the part surface that can be presented on the anti-false fiber on face of anti-fake material, because blocking of concaveconvex structure, the observer can see this unique portion respectively alone from different perspectives at this face---the characteristic pattern of vision difference is arranged on the part surface, thereby be used for anti-fake material, make existing printing technology can't imitate the vision difference that its stereochemical structure is brought.

But of the present inventionly can make purpose at least one face that the anti-false fiber unique portion is presented on anti-fake material naturally come down to control the anti-false fiber one side necessarily towards the sightingpiston of anti-fake material, according to theory analysis and concrete experiment, the anti-false fiber surface that is parallel to anti-false fiber maximum projection plane can be presented at least one face of anti-fake material naturally, its implementation can be three kinds: the one, and make anti-false fiber cover the pancake transparent material of one deck outward, the described part surface of anti-false fiber is towards the flat horizontal surface of transparent material simultaneously, like this, but the flat horizontal surface of flat fiber can be parallel with the sightingpiston of anti-fake material naturally, but the part surface that needs is presented on the sightingpiston of anti-fake material.Another kind of implementation is to make anti-false fiber become bending or bending shape, and has a certain toughness, and described part surface is positioned at this bending or bending outer surface, and like this when adding anti-fake material, anti-false fiber is can be with self crooked or bend attitude and be presented on anti-fake material and can observe on the surface.The third implementation is that to make the cross section on whole section of anti-false fiber or the partial-length be pancake, the described part surface of anti-false fiber be positioned at this pancake cross section place flat horizontal surface or with this flat mask jointly towards the surface of anti-false fiber, cross section for whole section fibre is flat situation, and flat horizontal surface can be towards sightingpiston in the anti-fake material but add naturally; Cross section for the pars fibrosa section is flat situation, but flat part can be towards sightingpiston, but with the corresponding tool of flat horizontal surface jointly towards other parts naturally also and then towards sightingpiston.

Description of drawings:

Fig. 1 is a structural representation of the present invention;

Fig. 2 be in the anti-false fiber of the present invention characteristic pattern A and B along anti-false fiber length direction parallel arrangement distribution map;

Fig. 3 is the side view of Fig. 2;

Fig. 4 is characteristic pattern parallel arrangement but the distribution map that tilts with the anti-false fiber length direction in the anti-false fiber of the present invention;

Fig. 5 is the side view that characteristic pattern A and B distribute along the anti-false fiber length direction in the anti-false fiber of the present invention;

Fig. 6 a-Fig. 6 d is characteristic pattern A and characteristic pattern B axial distribution but the different situation of lengthwise location on anti-false fiber;

Fig. 7 a and Fig. 7 b are the situations of the color characteristic various combination of characteristic pattern A or characteristic pattern B;

Fig. 8 is that the cross section of anti-false fiber of the present invention is a plurality of triangles sectional views of combination side by side;

Fig. 9 is that the cross section of anti-false fiber of the present invention is trapezoidal sectional view;

Figure 10 is that the cross section of anti-false fiber of the present invention is the sectional view of dimple-shaped;

Figure 11 a-11c is that the limit of the cross section of anti-false fiber of the present invention is the sectional view of different curves;

Figure 12 is that anti-false fiber of the present invention is the distribution map of bending in anti-fake material;

Figure 13 is the cross section zoomed-in view of Figure 12;

Figure 14 is that the anti-false fiber partial cross section is the front view of flat.

Figure 15 a-e is the sectional view that anti-false fiber is coated with the flat transparent fiber outward.

Figure 16 a-c is the minimum square area of anti-false fiber when being difformity.

The specific embodiment:

Shown the anti-false fiber 2 that is distributed with an amplification in the anti-fake material 1 among Fig. 1, the part surface 3 of anti-false fiber 2 is presented on the surface 1 ' of anti-fake material, part surface 3 has concavo-convex barrier structure, concavo-convex barrier structure among this figure is to contain triangular element in the cross section 4 by anti-false fiber 2 to constitute, the drift angle of triangular element and hypotenuse place face thereof have constituted the convex barrier structure, the face 3 ' at two hypotenuse places and 3 " part surface 3; on face 3 ', be distributed with characteristic pattern A; face 3 " on be distributed with characteristic pattern B, when from the surface 1 ' of anti-fake material 1, observing part surface 3 from different perspectives, can see characteristic pattern A and B respectively, such as from a to observation, can see characteristic pattern A, from b to observation, can see characteristic pattern B, characteristic pattern A is different with B, then can produce tangible vision difference.Characteristic pattern A and B can be separately or are covered with the face 3 ' and 3 at its place jointly ", make vision difference more obvious.When different angles are observed part surface 3 from the surface 1 ' of anti-fake material 1, in direction perpendicular to anti-false fiber 2, from a to b to seeing part surface 3, middle also have at least one to be positioned at two kinds of characteristic pattern A and the middle visual angle c of B, can see characteristic pattern A, also can see characteristic pattern B, because anti-false fiber 2 common very thins, therefore, from c to seeing that what see usually is a kind of pattern that characteristic pattern A and B are combined into.

At least two the characteristic pattern A and the B of the anti-false fiber that distributes in the anti-fake material of the present invention are included in the characteristic pattern that manifests such as under visible light, ultraviolet ray, infrared ray and other non-visible lights, for the characteristic pattern that manifests under the visible light, anti-fake material of the present invention can realize that a line is false proof, and is promptly popular false proof; For the characteristic pattern that manifests under ultraviolet ray, infrared ray and other non-visible lights, then the available dedicated instrument is judged, can realize that the two wires is false proof.Owing on the very thin anti-false fiber 2 that distributes in the anti-fake material 1 of the present invention concavo-convex barrier structure is set, and concavo-convex barrier structure is positioned on the part surface 3 of anti-false fiber, and this part surface 3 can be presented at least one surface of anti-fake material, therefore the observer observes from these lip-deep different angles of anti-fake material, because blocking of concaveconvex structure, can see the different characteristic pattern of part surface respectively, and produce tangible vision difference, have antifalse effect.Because this vision difference is to be blocked by concaveconvex structure by the pattern characteristics that distributes on the anti-false fiber part surface in the anti-fake material to cause, realize promptly that also above-mentioned purpose is determining in the occlusion effect of different angles to light owing to the meticulous concavo-convex barrier structure of fiber surface, and all at present printing processes (no matter being flat stamping, Kong Yin, protruding seal, duplicating, spray printing, gravure or the like) all can't copy this stereochemical structure, so the present invention can effectively stop the counterfeit of printing technology.

There is diversity in vision difference of the present invention:

At least two characteristic pattern A of the anti-false fiber that distributes in the anti-fake material of the present invention and B are blocked by concavo-convex barrier structure and are seen that respectively the vision difference of generation is diversified, this vision difference be with characteristic pattern in the different distributions of the anti-false fiber part surface at different concavo-convex barrier structure places and the different visions that can bring are relevant.

Embodiment shown in Figure 1 shows is the distribution that a kind of distribution of characteristic pattern can be blocked by concavo-convex barrier structure fully each other, because barrier structure is to extend along anti-false fiber 2 length directions, therefore only have significant change because of blocking perpendicular to the different visions of anti-false fiber 2 length directions are just possible, because anti-false fiber 2 is very thin, the maximum gauge of suggestion anti-false fiber cross section preferably is no more than 0.25mm, therefore the anti-false fiber width that can see perpendicular to anti-false fiber 2 length directions is very limited, die from a visual angle when change at the b visual angle, must be that characteristic pattern A is different with B could could produce tangible vision difference, could be observed by people's eyesight.Just different people's the twenty-twenty visions that can make with B of present embodiment characteristic pattern A are observed sudden change, and this difference preferably only is the difference of color, also can be the differences of pattern and color is identical, can also be that color is all different with pattern.Present embodiment anti-fake material 1 surface 1 ' is gone up and is had at least two viewing angle a and b, when a angle is observed the described part surface of anti-false fiber, see characteristic pattern A and characteristic pattern B is blocked by the triangle convex barrier structure on anti-false fiber 2 part surfaces 3 and cannot see, when the b angle is observed anti-false fiber 2 part surfaces 3, see characteristic pattern B and characteristic pattern A is blocked by the triangle convex barrier structure of anti-false fiber 2 part surfaces 3 and cannot see; False proof for the two wires, promptly observe by instrument, present embodiment then can not be subjected to the necessary different restriction of characteristic pattern A and characteristic pattern B, is identical such as characteristic pattern A and characteristic pattern B in people's twenty-twenty vision scope, but one of them has carried out certain non-visible light and has handled, then under the instrument that can discern this non-visible light, just can see both vision differences, produce antifalse effect.It is a kind of pattern that does not have the overlapping region to separate fully with B position relation that the setting of the convex barrier structure of present embodiment on surface, anti-false fiber 2 top 3 makes pattern characteristics A, can realize the visual effect of being blocked fully each other.

At least two characteristic pattern A and B on part surface 3 significantly vision difference also can be that a certain characteristic pattern can not be blocked and another feature pattern can be blocked the different visual effects of generation fully fully, this visual effect is brought owing to the inclusion relation of characteristic pattern often, be included in fully among the characteristic pattern B such as characteristic pattern A, promptly the time from a angle observation anti-false fiber part surface 3, the concavo-convex barrier structure of anti-false fiber part surface 3 makes eyesight can only see characteristic pattern A and has blocked characteristic pattern B fully, and the concavo-convex barrier structure of anti-false fiber part surface 3 makes eyesight can only see characteristic pattern B and characteristic pattern A is not blocked when the b angle is observed anti-false fiber part surface 3.The characteristic pattern A and the B that produce this vision difference must be inequality, and the color of characteristic pattern is inequality at least, to produce strong vision difference.

It also can be the visual effect that produces all can not block fully the time, this situation can be that characteristic pattern A is two patterns that do not have the overlapping region to separate fully with characteristic pattern B, promptly the time from a angle observation anti-false fiber part surface 3, the concavo-convex barrier structure of anti-false fiber part surface 3 makes the people can only see characteristic pattern A and has blocked the part of characteristic pattern B, the concavo-convex barrier structure of anti-false fiber part surface 3 makes and can only see characteristic pattern B and blocked a characteristic pattern A part when the b angle is observed anti-false fiber part surface 3, though this moment, B or A were not blocked fully, but since its quite a few be blocked, the part that it can be seen by the people is because the resolving power of human eye, what see may be a kind of pattern of characteristic pattern A and characteristic pattern B combination, rather than simple characteristic pattern A adds that characteristic pattern B or characteristic pattern B add characteristic pattern A.The characteristic pattern A and the B that produce this tangible vision difference also must be inequality, and color character is inequality at least.

It can also be the vision difference that brings along the visual transform of fibre length direction jumping characteristic because of being blocked, because the sight line anti-false fiber length direction people can be longer, (length of anti-false fiber preferably is no more than 15mm, but 0.2mm can bring much longer sight line than its width), therefore as at least two characteristic pattern A and B during along anti-false fiber length diverse location (rather than distribute vertically as Fig. 1) distribution, can produce the visible change of great-jump-forward, when characteristic pattern is the color characteristic pattern, be elaborated below this visible change.This visible change requires relatively lowly to characteristic pattern, and promptly characteristic pattern can be identical, as long as in the residing position of anti-false fiber length direction obvious vision difference is arranged, just can produce the visible change of great-jump-forward.

The diversity of characteristic pattern of the present invention and the visual effect of bringing thereof:

At least two characteristic pattern A and B can be the patterns that various lines, literal etc. are formed, and also can be the patterns that color, lines, literal etc. are formed, and can also only be above-mentioned individual elements, as only being character pattern, only are colors.Because the anti-false fiber very thin in the anti-fake material of the present invention, false proof for the line that practicality is higher, discern simple more direct, then be worth high more, because color characteristic is the feature that normal person's eyesight is convenient to differentiate most, only be that the situation of color characteristic pattern is fully set forth at two characteristic pattern A and B below therefore.

Still see Fig. 1, characteristic pattern A and characteristic pattern B have vitta A and the tint B that the different colours feature is parallel to each other, for example vitta A is red, tint B is blue, when observing anti-false fiber part surface 3, a angle can only see red bar and blue bar is blocked by the concavo-convex barrier structure on the anti-false fiber part surface 3 and be cannot see, at this moment, ordinary people's sensory fibre is red, when observing anti-false fiber part surface 3, the b angle can only see red bar and blue bar is blocked by the concavo-convex barrier structure on the anti-false fiber part surface 3 and be cannot see this moment, ordinary people's sensory fibre is red, when observing anti-false fiber part surface 3, the c angle can see red bar and blue bar simultaneously, superfine and extremely near apart owing to vitta, ordinary people's the tertiary colour effect of feeling red bar and blue bar, promptly fiber is a black.

It is parallel with the length direction of anti-false fiber with tint B to have the vitta A that the different colours feature is parallel to each other among the embodiment that Fig. 1 shows, when changing angle and observing, whole fiber becomes blueness by redness, has the visual transform effect of uniqueness.The translation-angle that is transformed to angle b by angle a preferably is not more than 120 degree.The design's visual signature is that its fiber color change is the most obvious when changing angle observation fiber surface perpendicular to the fibre length direction.

Characteristic pattern A and characteristic pattern B are respectively the combination patterns with the combination pattern of vitta A1, A2 that the different colours feature is parallel to each other, A3 and tint B 1, B2, B3 among Fig. 2, Fig. 3, and vitta A1-A3 is vertical with the length direction of anti-false fiber with tint B 1-B3.The design's visual signature is that its fiber color change is the most obvious when changing angle observation fiber surface along the fibre length direction.

Characteristic pattern A and characteristic pattern B are respectively the combinations with the combination of vitta A1, A2 that the different colours feature is parallel to each other, A3 and tint B 1, B2, B3 among Fig. 4, the crossing angle of the length direction of A1-A3 and B1-B3 and anti-false fiber is between the 0-90 degree, the design's visual signature is when being to change angle again and observe fiber surface with fibre length direction inclination respective angles, and its fiber color change is the most obvious.

Characteristic pattern A is that pattern is identical, color characteristic is also identical with characteristic pattern B, but characteristic pattern A and the different situation in the position of characteristic pattern B on length direction on the anti-false fiber see Fig. 5, for example, vitta A and tint B are all to be black, vitta A is distributed in the first half of fiber, is made of A1, A2, A3, and tint B is distributed in the latter half of fiber, constitute by B1, B2, B3, when changing the angle observation, whole fiber moves at the beat type occurrence positions, has unique visual transform effect.

For characteristic pattern A and characteristic pattern B is that pattern is identical, color characteristic is different, but characteristic pattern A is different with the position of characteristic pattern B on length direction on the anti-false fiber.Still see Fig. 5, for example, vitta A is red, tint B is a black, and vitta A is distributed in the first half of fiber, and tint B is distributed in the first half of fiber, when changing the angle observation, whole fiber becomes black by redness and the beat type occurrence positions moves, and has unique visual transform effect.

Fig. 6 a-d is characteristic pattern A and characteristic pattern B axial distribution but the different situation of lengthwise location on anti-false fiber, characteristic pattern A and characteristic pattern B on length direction on the anti-false fiber can be the position overlapping fully or overlap or part is joined or from.Fig. 6 a: vitta A is red, and tint B is a black, and vitta A and tint B are complete when overlapping, and when changing angle and observing, whole fiber becomes black by redness, and the position of fiber is not subjected to displacement, and has unique visual transform effect; Fig. 6 b: when vitta A and tint B were overlapped, when changing the angle observation, whole fiber becomes black by redness and the beat type occurrence positions moves, but the less unique visual transform effect that has of beating; Fig. 6 c: when vitta A and tint B intersected, when changing the angle observation, whole fiber becomes black by redness and the beat type occurrence positions moves, and is end to end but beat; Fig. 6 d: vitta A and tint B from the time, when changing angle and observing, whole fiber becomes black by redness and the beat type occurrence positions moves, but moving of the great-leap-forward of beating has unique visual transform effect.

Fig. 7 a is the situation of the color various combination of characteristic pattern A or characteristic pattern B, and its color can be monochromatic, or polychrome is compound.For example, vitta A is made up of the lines of two end to end different colours, and one is that red A1, one are green A2, and tint B is a black, and when changing angle and observing, whole fiber becomes the monochromatic lines of black, visual effect uniqueness by the red and green color lines.

When characteristic pattern was color characteristic, color can be a white, or colourless or identical with anti-fake material surface color color.If vitta A is red among Fig. 7 b, tint B is a white, and tint B is distributed on whole convex surfaces 3 ' of anti-false fiber, if the anti-fake material surface is a white, when changing the angle observation, whole fiber becomes fiber by redness and disappears, and has unique visual transform effect; Be black such as vitta A also, tint B is red, and tint B is distributed on whole convex surfaces 3 ' of anti-false fiber, if the anti-fake material surface is red, when changing angle and observing, whole fiber becomes fiber by black and disappears, and has unique visual transform effect.

Concavo-convex barrier structure of the present invention has diversity:

Concavo-convex barrier structure is that the anti-false fiber cross section has a triangular element at least, sees Fig. 1, and cross section 4 is a triangular element, and characteristic pattern A is on the face 3 ' at a leg-of-mutton hypotenuse place, and characteristic pattern B is at leg-of-mutton another hypotenuse place face 3 " on.Triangle is to realize presenting the typical concavo-convex barrier structure that a characteristic pattern shelters from another characteristic pattern, and satisfies the requirements that the translation-angle that transforms to angle b by angle a preferably is not more than 120 degree easily.

Concavo-convex barrier structure is to be made up side by side by a plurality of triangles, sees Fig. 8, on the corresponding hypotenuse of each triangle all characteristic patterns constitute characteristic pattern A, all characteristic patterns constitutes characteristic pattern B on another corresponding hypotenuse of each triangle.Because fiber is very thin, the concavo-convex barrier structure that single triangle forms is difficult to be presented on the anti-fake material surface flatly, because the sensitivity of flat triangle characteristic pattern conversion when changing viewing angle is not high, and can be very thin at fiber width one timing vitta A or tint B, can influence visual effect.Therefore, the triangle of the present invention's design makes up side by side and can remedy above-mentioned deficiency.

Concavo-convex barrier structure be have at least one trapezoidal, see Fig. 9, characteristic pattern A is on a trapezoidal hypotenuse, characteristic pattern B is on another trapezoidal hypotenuse.The present invention is designed to trapezoidal, is because trapezoidally have a flat structure, the flat horizontal surface that it not only can make fiber up, and because trapezoidal hypotenuse can be done more tiltedly, thereby the sensitivity that can guarantee characteristic pattern conversion when changing viewing angle is higher.

Concavo-convex barrier structure is to have a dimple-shaped at least, see Figure 10, totally three pits, characteristic pattern A is positioned at place, limit face above the dimple-shaped, by characteristic pattern A1, A2, A3 forms, be A1, A2, A3 constitutes overall characteristic pattern A, characteristic pattern B is on the anti-false fiber face of place, dimple-shaped base, by characteristic pattern B1, B2, B3 forms, when with the part surface of enough this barrier structures of angle of inclination observation band, can only see assemblage characteristic pattern A, when when seeing perpendicular to the angle of part surface 3, can see characteristic pattern A1-A3 and characteristic pattern B1-B3, if pit is enough little, observing what see from angle vertical and that tilt a little is assemblage characteristic pattern A and A and certain pattern that B is combined into, and the anti-false fiber that promptly has this concavo-convex barrier structure is when the observation anti-fake material that it presented is surperficial, concavo-convex barrier structure can block characteristic pattern B fully, but can not block characteristic pattern A.

The limit of described concavo-convex barrier structure can be an arc, comprises convex and spill, sees Figure 11 a and 11b, can be flanging or toothed edge also, sees 11c.

The method that control anti-false fiber part surface 3 presents on the surface of anti-fake material:

Realize purpose of the present invention, be controlled in the actual production process the effective concavo-convex barrier structure of fiber and necessarily be presented on the anti-fake material surface and be absolutely necessary.According to theory analysis and a large amount of experimental results show that, in paper-making process, when fiber has certain elastic hardness, the maximum projection plane of whole fiber shape is not necessarily up and be presented on the surface of paper, the projected area of anti-false fiber of the present invention is meant the minimum square area of the projection line correspondence of its entity, that is: when anti-false fiber be that the cross section of straight line and fiber waits simultaneously in the longitudinal direction, minimum square area is the area of the entity projection line of anti-false fiber, sees the zone that the oblique line among Figure 16 a covers; When anti-false fiber be straight line and fiber cross section in the longitudinal direction not simultaneously, the widest part of the entity projected area that minimum square area is an anti-false fiber and the product area of fibre length are seen the zone that the oblique line among Figure 16 b covers; When anti-false fiber was sweep, minimum square area was a square area that just covers the crooked projection line formation of entity of anti-false fiber, sees the zone that Figure 16 c bend covers.

Another kind of description is the same with above-mentioned actual effect, remove to comprise anti-false fiber 2 with side's body, two surfaces of maximum of minimum side's body that can all comprise anti-false fiber are during corresponding to the part surface 3 of anti-false fiber, because two surperficial energy states of maximum of minimum side's body are minimum, inevitable towards the anti-fake material surface, the part surface 3 that therefore has concavo-convex barrier structure can be presented on the anti-fake material surface.

In view of the above, the present invention has made following specialized designs, and these designs are applicable to too anti-false fiber is distributed in the interlayer of one deck paper, or is distributed in the interlayer of one deck plastic film, or has been distributed in one deck single layer plastics films:

Anti-false fiber 2 is curved shapes, and the upper surface of curved fiber is an anti-false fiber part surface 3, sees Figure 12.The cross section of anti-false fiber length direction at the Breadth Maximum c that is parallel to the anti-fake material surface smaller or equal to cross section at Breadth Maximum d perpendicular to the anti-fake material surface, just the major axis d of the cross section of anti-false fiber 2 length directions and anti-fake material surface is vertical.See Figure 13, therefore when fiber was bending, its cross section can not be that flat still can make the part surface 3 of the anti-false fiber that needs be presented on the surface of paper.The horizontal maximum length of crossing over because of bending of crooked anti-false fiber 2 is its geometric widths e, see Figure 12, when this geometric widths e be at least the fibre length direction cross section major axis d length more than two times the time, crooked anti-false fiber 2 can be presented on the surface of anti-fake material fully by its natural camber.

If it is flat that anti-false fiber 2 has a part of C at least at the cross section of fibre length direction, the flat horizontal surface of flat correspondence is presented on the surface of anti-fake material, sees Figure 14.Also can be that anti-false fiber 2 all is a flat at the cross section of fibre length direction, the flat horizontal surface of flat correspondence be presented on the surface of anti-fake material.The flat part of anti-false fiber 2 is preferably colourless, or white, or the color surperficial identical with anti-fake material.

If the outer pancake transparent material of one deck that covered of anti-false fiber, and part surface 3 is on the surface of the anti-false fiber of flat horizontal surface 5 correspondences of transparent material, see Figure 15 a-d, the flat horizontal surface 5 of flat correspondence is presented on the surface of anti-fake material, the part surface 3 of anti-false fiber 2 is corresponding with flat horizontal surface 5, towards identical, so also present the surface of anti-fake material 1.Because flat covers the physical efficiency nature outward and is presented on the anti-fake material surface with flat horizontal surface 5, so the part surface with concavo-convex barrier structure 3 of anti-false fiber of the present invention also is presented on the surface of anti-fake material certainly naturally.

The material of anti-false fiber of the present invention can organic material or metal material.

Anti-fake material of the present invention is meant paper or cardboard or organic film.Anti-false fiber 2 can be clipped between two layers of pulp layer, or is clipped between two layers of organic film; Or be clipped between pulp layer and other material layer; Or be clipped between organic thin film layer and other material layer; Or stick to the surface of anti-fake material, or other modes embed the surface of anti-fake material.

The various concaveconvex structures of anti-false fiber of the present invention can generate by mould.Characteristic pattern on the concaveconvex structure can be produced on the anti-false fiber by modes such as pad pasting, meticulous printing, hot pressing; Characteristic pattern for plain color constitutes can spray the synthetic then mode of different colours by nozzle and make, and also can constitute by the hot pressing of different colours fiber.

The method of anti-false fiber embedding paper can adopt directly and add in the paper pulp in machine hand's skill, also can be by the mode of multi-ply paper pressing.

Claims

1, a kind of anti-fake material, be distributed with anti-false fiber on it, the part surface of described anti-false fiber is presented on the described anti-fake material surface, it is characterized in that described part surface has concavo-convex barrier structure, be distributed with at least two characteristic pattern A and B on it, described at least two characteristic pattern A and B have tangible vision difference on described part surface, make when observing described part surface from different perspectives on presenting the anti-fake material surface of described part surface, can see characteristic pattern A and B respectively.

2, anti-fake material according to claim 1, it is characterized in that presenting on the anti-fake material surface of described part surface and have at least two viewing angle a and b, when a angle is observed the described part surface of anti-false fiber, see characteristic pattern A and characteristic pattern B is blocked by the concavo-convex barrier structure on the described part surface of anti-false fiber and cannot see, when the b angle is observed the described part surface of anti-false fiber, see characteristic pattern B and characteristic pattern A is blocked by the concavo-convex barrier structure on the described part surface of anti-false fiber and cannot see.

3, anti-fake material according to claim 1 and 2, it is characterized in that: the concavo-convex barrier structure of described anti-false fiber is to be made of at least one triangular element that its cross section has, characteristic pattern A is on the surface at a hypotenuse place of described triangular element drift angle, and characteristic pattern B is on the surface at another hypotenuse place of described drift angle.

4, anti-fake material according to claim 1 and 2, it is characterized in that: the concavo-convex barrier structure of described anti-false fiber is to be constituted side by side by a plurality of triangular element that its cross section has, characteristic pattern A and characteristic pattern B lay respectively on the surface at the corresponding hypotenuse place with same view angle, be on the corresponding hypotenuse of each triangular element of a viewing angle correspondence all characteristic patterns constitute characteristic pattern A, all characteristic patterns constitutes characteristic pattern B on another corresponding hypotenuse of each triangular element of b viewing angle correspondence.

5, anti-fake material according to claim 1 and 2, it is characterized in that: the concavo-convex barrier structure of described anti-false fiber is to be made of at least one trapezoidal element that its cross section has, characteristic pattern A is on the surface at a hypotenuse place of trapezoidal element, and characteristic pattern B is on the surface at another trapezoidal hypotenuse place.

6, according to the described anti-fake material of one of claim 1-5, it is characterized in that: the described part surface of described anti-false fiber is in the maximum projection plane that is projected as anti-false fiber on anti-fake material surface or parallel with maximum projection plane.

7, anti-fake material according to claim 6 is characterized in that: described anti-false fiber is a curved fiber.

8, anti-fake material according to claim 7 is characterized in that: the cross section of described curved fiber at the longest straight line that is parallel to curved fiber maximum projection plane smaller or equal to this cross section at the longest straight line perpendicular to curved fiber maximum projection plane.

9, according to the described anti-fake material of one of claim 1-5, it is characterized in that: all or part of cross section of described anti-false fiber is a flat, the described part surface of described anti-false fiber be positioned on the flat horizontal surface or with flat horizontal surface on the surface of the anti-false fiber that has common perspective plane on the anti-fake material.

10, according to the described anti-fake material of one of claim 1-5, it is characterized in that: the outside of described anti-false fiber is coated with flat transparent material, and the described part surface of described anti-false fiber is on the surface of the anti-false fiber of the flat horizontal surface correspondence of transparent material.

11, a kind of anti-false fiber that embeds in one of the claim 1-5 anti-fake material, part surface with a surface that can be presented on described anti-fake material, it is characterized in that: described part surface has concavo-convex barrier structure, be distributed with at least two characteristic pattern A and B on it, described at least two characteristic pattern A and B have tangible vision difference on described part surface, make when on presenting the anti-fake material surface of described part surface, observing described part surface from different perspectives, can see characteristic pattern A and B respectively.

12, anti-false fiber according to claim 11, it is characterized in that: present and have at least two viewing angle a and b on the anti-fake material surface of described part surface, when a angle is observed the described part surface of anti-false fiber, see characteristic pattern A and characteristic pattern B is blocked by the concavo-convex barrier structure on the described part surface of anti-false fiber and cannot see, when the b angle is observed the described part surface of anti-false fiber, see characteristic pattern B and characteristic pattern A is blocked by the concavo-convex barrier structure on the described part surface of anti-false fiber and cannot see.

13, according to claim 11 or 12 described anti-false fibers, it is characterized in that: maximum projection plane that described part surface is described anti-false fiber on described perspective plane on anti-fake material or the plane parallel with this maximum projection plane.

14, a kind of anti-false fiber that embeds in one of the claim 1-5 anti-fake material, it is characterized in that: described anti-false fiber has covered the pancake transparent material of one deck outward, have the part surface corresponding on the surface of anti-false fiber with the flat horizontal surface of transparent material, described part surface has concavo-convex barrier structure, be distributed with at least two characteristic pattern A and B on it, described at least two characteristic pattern A and B have tangible vision difference on described part surface, make when on presenting the anti-fake material surface of described part surface, observing described part surface from different perspectives, can see characteristic pattern A and B respectively.

15, a kind of anti-false fiber that embeds in one of the claim 1-5 anti-fake material, it is characterized in that: described anti-false fiber for can be with self crooked or bending attitude be presented on lip-deep bending of anti-fake material or bending fiber, the described part surface crooked or bending that can be presented on the anti-fake material surface of anti-false fiber has concavo-convex barrier structure, be distributed with at least two characteristic pattern A and B on it, described at least two characteristic pattern A and B have tangible vision difference on described part surface, make when on presenting the anti-fake material surface of described part surface, observing described part surface from different perspectives, can see characteristic pattern A and B respectively.

16, a kind of anti-false fiber that embeds in one of the claim 1-5 anti-fake material, it is characterized in that: whole section of described anti-false fiber or the cross section of part are flat, can make the flat surface and the respective surfaces of this anti-false fiber parallel with this surface of anti-fake material, anti-false fiber has the part surface that is positioned on described flat surface or the respective surfaces, described part surface has concavo-convex barrier structure, be distributed with at least two characteristic pattern A and B on it, described at least two characteristic pattern A and B have tangible vision difference on described part surface, make when on presenting the anti-fake material surface of described part surface, observing described part surface from different perspectives, can see characteristic pattern A and B respectively.