CN107345922A - Method based on microcosmic mark characteristic differentiation seal impression generation type - Google Patents
Method based on microcosmic mark characteristic differentiation seal impression generation type Download PDFInfo
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Abstract
The present invention relates to a kind of method based on microcosmic mark characteristic differentiation seal impression generation type, it belongs to inspection of document technical field.It mainly comprises the following steps：(1) by being subjected to visual examination based on objective fact and existence general knowledge to seal impression；(2) seal impression is analysed in depth using microcosmic mark feature, the microcosmic mark feature includes ink marks feature, ink dot feature and site feature；Wherein, described impress with non-Plate making printing printed text is to be differentiated that the Plate making printing printed text is differentiated using site feature using ink marks feature and ink dot feature；Then judge that the seal impression is formed by the woodcut in impress either non-Plate making printing or letterpress printed text and metallograph in the absence of site feature, site feature be present and then judge that the seal impression is formed by Plate making printing printed text.The beneficial effects of the invention are as follows：The degree of accuracy examined using the discriminating printed text production method of a mark feature is high, simple operation, is a kind of lossless, quick discrimination method.
Description
Technical field
The present invention relates to a kind of method for differentiating seal impression generation type, more particularly to one kind to be based on microcosmic mark feature
Differentiate the method for seal impression generation type, it belongs to inspection of document technical field.
Background technology
Enriching for the content such as the 1940s, seal identification, typewriter identification, the identification forged document, is formed
The conventional contents of inspection of document technology.The printed text side of being formed that the printed text to be formed of impressing by hand is generally approved and trusted as society
Among formula is always present in social activities.With printing technology electronization, automation and the development of informationization, the work of colored printing
Skill, technology, equipment and material all change constantly, and we are faced with " the colored revolution " of a fashionable global press.
Printed text is printed as modern society's legitimacy sign applied among business community, shows the multifarious form of expression, such as
All occurs the legitimacy pattern using printed text as mark on the carriers such as certificate, bill, security, newpapers and periodicals, propaganda material and packing material
Image.Perfect reproduction and excellent reduction of the high quality printing mode to original copy information, preferably meet consumer to information quality
The requirement constantly lifted, but also provided convenience condition for fake and forged behavior simultaneously.In recent years, forged and printed using mode of printing
Text or using print printed text for original copy copy printed text case emerge in an endless stream, make printed text true or false differentiate show new intension and outside
Prolong.Identify practice in, be related to printing printed text test sensitivity case it is with conspicuous characteristics, mainly based on economic case, be directed to state more
Family's administration printed text is object, case be in series type and clique's type, caused by social harm it is larger, turn into judicial expertise and lead
Domain realistic problem urgently to be resolved hurrily.
The theory and practice that domestic galley type differentiates mainly is seen in the text inspection teaching material of different editions, its feature recognition
The morphological observation description of ink marks attachment and distribution is focused primarily upon, fade dense crowded ink, the ink powder of intaglio plate in such as relief printing plate
Stereo stocking, lithographic plate show money or valuables one carries unintentionally and dirty version vestige distribution etc. feature performance.On this version type discrimination method and thinking start from
Century five, the sixties simultaneously continue into the present, wherein the understanding and utilization for site feature stay in three in lithographic printing all the time
The test sensitivity of the chromatography file of primary colors, it is not applied to always using site traffic micro-simulation as the differentiation criterion of all kinds of version types
Aspect is identified in the inspection of document.
The content of the invention
It is an object of the invention to provide the making version that a kind of morphological feature by microcosmic mark differentiates seal impression
The method of type generation type.
The technical scheme that the present invention solves above-mentioned technical problem is as follows：
A kind of method based on microcosmic mark characteristic differentiation seal impression generation type, seal impression be divided into printed text of impressing,
Non- Plate making printing printed text and Plate making printing printed text；The non-Plate making printing printed text is divided into print copying printed text and digital printing print
Text, wherein, the print copying printed text is divided into color laser printing printed text, color laser duplicates printed text and color ink jet printed print
Text；The Plate making printing printed text is divided into letterpress printed text, lithographic printing printed text, porous printing printed text and intaglio printing printed text,
Wherein, the letterpress printed text is divided into woodcut, typographical printing printed text and flexible letterpress printed text, the lithographic printing
Printed text is divided into stone plate, collotype printing printed text and hectographic printing printed text, and the intaglio printing printed text is divided into shadow and writes printing printed text, hand
Work engraving and printing printed text, mechanical engraving printing printed text, laser engraving printing printed text and electronic engraving printing printed text；Including following step
Suddenly：
(1) by being subjected to visual examination based on objective fact and existence general knowledge to seal impression；
(2) seal impression is analysed in depth using microcosmic mark feature, it is special that the microcosmic mark feature includes ink marks
Sign, ink dot feature and site feature；Wherein, described impress with non-Plate making printing printed text is reflected using ink marks ink dot feature
Not, the Plate making printing printed text is differentiated using site feature；Then judge that the seal impression is by covering in the absence of site feature
Print non-Plate making printing or woodcut in letterpress printed text and metallograph is formed, site feature be present and then judge that the seal prints
Text is formed by Plate making printing printed text.
On the basis of above-mentioned technical proposal, the present invention can also do following improvement.
Further, impressing with the identification of non-Plate making printing printed text, the ink marks feature for dipping in inky cap Yin Yinwen includes
Easily there is the appearance infiltration of the solid shape feature of the constrain power vestige protruded and the colorant of printed text, spread and sunk in printed text carrier back side of paper
The plain track feature of scattered expansionary force effect；The ink dot of the non-Plate making printing printed text is characterized as by yellow, pinkish red, blue or green, black four
Color ink point accumulation shape and distribution.
Further, in the identification of non-Plate making printing printed text, the ink dot of the digital printing printed text is characterized as that colorant is intensive
Loose, plain consistent, the light place's red ink dot of colored spots color and luster is spent in aggregation shape distribution；In the identification of print copying printed text,
The color laser printing printed text is characterized in that the red ink dot of printed text is relatively single, color by electronic signal control ink dot group color
Color concentration difference is small, and picture and text edge ink powder is concentrated；The color laser duplicates printed text and is characterized in a group color ink point type and quantity
Change, the change of picture and text configuration of surface is complicated, and color density differs greatly, and picture and text edge loose powder is more, the overall " spot of picture and text
Refute " " hollow " loss of learning；The color ink jet printed printed text is characterized in that the ink dot species of participation group color is various, printed text ink dot
Density is in disorder, liquid ink dot blending mixed effect is obvious, and color and luster is dim.
Further, in the identification of Plate making printing printed text,
(1) the ink marks of the letterpress printed text is characterized in that layer of ink is abundant, paper shows obvious convex-concave because being squeezed
Vestige, feel touch obvious；Site be characterized in the picture and text of 1. traditional woodcut and metallograph be on the spot ink marks, in the absence of net
Point feature, 2. the sharper edge in flexographic plate site, easy taste ink, impressing form " hollow " circular contour；
The ink marks of the lithographic printing printed text be characterized in ink marks it is uniform, it is flat, without raised or ink overflow phenomenon；Nothing on paper
Sometimes occur the point-like of not inking on printing plate impression, picture and text or size often occur in the phenomenon that shows money or valuables one carries unintentionally of ring-type blank, picture and text blank space
The dispersivity ink fault not waited；Site is characterized in 1. collotype and stone plate printing without site feature, 2. hectograph site feature
Centered on part mass colour it is denseer, burrs on edges shape scattered phenomenon of spreading and sinking in is obvious；
(3) the ink marks of the porous printing printed text is characterized in that layer of ink is thicker, site is characterized in picture and text lines by irregular point
It is uneven with sheet ink marks composition, edge；Site is characterized in generally square, circle, rhombus, easily occurs what isometrical horizontal line and vertical line interweaved
Grid；
(4) in the intaglio printing printed text, 1. shadow writes the ink marks of intaglio plate and is characterized in that layer of ink is thick and heavy, convex in paper, picture and text lines
Edge is uneven, jagged phenomenon, word edge indention, and site is characterized in grid, brick shape, rhombus and irregular shape is presented
Shape, its depth apart from it is well arranged, have actual situation change, printing effect is soft, abundant, fine and smooth, and center mass colour is more shallow than surrounding, and
It is white that obvious " air bubble-shaped " leakage often occurs in center；2. the ink marks of hand engraving intaglio plate be characterized in pattern line is clearly demarcated, layer of ink is abundant,
Slightly raised, superfine dotted line is clear and legible on paper, color and luster is prolonged constant, and site is characterized in by width, density, length not
Same striped composition, and because oozing for ink setting forward position paper fibre is scattered, it is in beard shape to make streakline edge；3. mechanical engraving
The ink marks of intaglio plate is characterized in that parallel lines are fine and closely woven, neat, uniform, and line edge is mellow and full, and site is characterized in no netting twine, no site,
There is the pin trace such as strip, point-like；4. the ink marks of Laser engraved gravure is characterized in the word of fine definition and superfine false proof lines, net
Point feature is the size of monochromatic site, homomorphosis, the size of the heterochromatic site after chromatography, comes in every shape, intersects, there is circle
, easily there is special-shaped site in shape, ellipse, square, rhombus, hexagon, ink cell be U-shaped, site variable depth, aperture area not
Become, the completely the same site of size, form forms netting twine.
Further, judge and the specific method for platemaking of determination Plate making printing printed text is
1. Plate making printing printed text is subjected to visual examination；
2. being chosen in Plate making printing printed text, picture and text color is shallower, color and light and shade transition is obvious and picture and text fringe region
As detail inspection region；
3. the detail inspection region of selection is tested using microscope or magnifying glass, that is, observe site shape,
Size, centralizing morphism, shade, area change, the phenomenon that thorough cut, leader collapse is seen whether, observe the intersection of netting twine
Angle and line number, and an edition type species is differentiated by the site feature of different version types.
The beneficial effects of the invention are as follows：High using the degree of accuracy of microcosmic mark characteristic differentiation printed text production method, operation is just
Victory, it is a kind of lossless, quick discrimination method.The inspection and discriminating of printed text generation type are the head that seal impression true or false is examined
Want link.The outstanding advantage of microcosmic mark feature be from microcosmic angle for the test sensitivity of printed text provide feature recognition according to
According to.The Species differences for the microscopic feature that printed text point mark is presented, it can significantly distinguish Plate making printing and impress, non-Plate making printing print
Text, and can further refine the secondary species for distinguishing printed text generation type.Species, shape, area, distribution based on a mark and its
Printed text establishing identity and kind can be formed in the microcosmic morphological feature that the attributes such as the infiltration and diffusion on stock surface are reflected
The basis of identification, to differentiate that printed text generation type provides foundation.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention；
Fig. 2-a are lithographic plate printing character features figure；
Fig. 2-b are carved intaglio printing character features figure；
Fig. 3 is relief printing plate, lithographic plate, intaglio plate printed text character features figure；
Fig. 4-a are the site characteristic pattern of relief printing plate；
Fig. 4-b are the site characteristic pattern of lithographic plate；
Fig. 4-c are the site characteristic pattern of intaglio plate；
Fig. 4-d are the site characteristic pattern of hole version；
Fig. 5-a are the site limit features figure of etching plate；
Fig. 5-b are the site microscopic features figure of hand engraving intaglio plate；
Fig. 5-c are the site microscopic features figure of mechanical engraving intaglio plate；
Fig. 5-d are the site microscopic features figure of electronic engraving intaglio plate；
Fig. 5-e are the site microscopic features figure of Laser engraved gravure；
Fig. 5-f are the site microscopic features figure of electron beam intaglio plate；
Fig. 6 is the site thorough cut characteristic pattern of electronic engraving intaglio plate；
Fig. 7-a are the electronic engraving half-tone under 40 power microscopes；
Fig. 7-b are the electronic engraving half-tone under 400 power microscopes；
Fig. 8-a are the very low printed matter site characteristic pattern of darkness；
Fig. 8-b are the relatively low printed matter site characteristic pattern of darkness；
Fig. 8-c are the higher printed matter site characteristic pattern of lightness；
Fig. 8-d are the very high printed matter site characteristic pattern of lightness.
Embodiment
The principle and feature of the present invention are described below in conjunction with accompanying drawing, the given examples are served only to explain the present invention, and
It is non-to be used to limit the scope of the present invention.
First, examine and differentiate whether mode of printing is formed printed text
It whether there is site in seal impression micro-image or netting twine be characterized in judging whether printed text is the head for printing and being formed
Want step.Site (line) is characterized in the prominent features of printed matter, if site (line) feature in the micro-image of printed text be present,
It can determine whether that printed text is formed for printing.Printed text of impressing and print copying printed text show without site feature, and what the former reflected is printed text color
The attachment of material, scattered and constrain power indication character of spreading and sinking in, what the latter protruded is the indication character of color dots.
In printed matter, site feature can be not necessarily shown, that is, the printing without site or site None- identified be present
Picture and text.One kind is the printing figure message of no site, such as the woodcut in traditional relief printing plate and stone plate and collotype in metallograph, lithographic plate
Etc. printing, modern printing technology site is not present in screening (digital printing, micro- jet printing) printing.Another kind is some adopts
With the printing of screening technology, the part on the spot of its image is often due to site is intensive and can not differentiate.Therefore, only integrated use
Traditional galley type feature and the site feature of modern printing, it can be only achieved difference printing printing classification, differentiate printing essence
The purpose of attribute.As shown in Fig. 2-a and Fig. 2-b, lithographic plate and the text of carved intaglio printing in 5 jiaos of RMB of distribution in 1972
Word Characteristic Contrast figure.
2nd, analyze and judge to print the attribute of four big galley types of printed text
It is after printing printed text, according to site signature analysis and to judge four great seals that printing is subordinate to determine examined printed text
The species of brush version type (relief printing plate, lithographic plate, intaglio plate, hole version).
(1) by the inspection in terms of the objective facts such as printed matter age, printable fabric, printing content, if it find that its is bright
It is aobvious not meet certain class galley type existence condition, it can directly make the conclusion that the printing is not this edition type printing.Such as：China
Modern intaglio printing is prevailing in last century the nineties extensively, and the '30s Red Region stamp then generally uses litho, no
Modern gravure application may be used；The eighties common manuscript paper, envelope, books and periodicals frequently with letterpress, also gravure absolutely not
Product；The picture and text on the special object such as other ceramics, glass, three-dimensional surface, metals surface do not meet the object bar of intaglio plate printing
Part, be considered as whether silk-screen printing, etc..As shown in Figure 3, two jiaos of RMB of three kinds of version types of distribution in 1962, in nominal value
Printed text is respectively convex, the printing of flat, intaglio plate type.
(2) by it is above-mentioned based on objective fact and existence general knowledge and can not accurate judgement printing galley type situation,
It must be analysed in depth on the basis of leaving a question open with the specific features of all kinds of version types.Therefore, four big galley of awareness and understanding
The printing feature of type, especially intaglio printing be different from relief printing plate, lithographic plate, porous printing site feature uniqueness, then seem
It is particularly important.As shown in Fig. 4-a, Fig. 4-b, Fig. 4-c and Fig. 4-d, site Characteristic Contrast figure (the micro- amplification 400 of four kinds of version types
Times), there is the crowded black phenomenon of " in light side dense " Fig. 4-a modern flexible relief printing plates, site；Fig. 4-b modern times lithographic printings, the edge of site
Shape is similar " daisy_petal part "；Fig. 4-c Laser engraved gravures, site is in the same size, homomorphosis；Fig. 4-d porous printings, layer of ink
Thickness, site size shape are uneven.
The printing of four kinds of galley types, the difference of its feature are mainly manifested in impression, ink marks trace, site and ink film thickness four
Aspect.Site is both an important factor for causing printing figure message microscopic differences, and differentiates the key feature of version type.See Fig. 4-a, figure
Shown in 4-b, Fig. 4-c and Fig. 4-d, the print characteristics of four kinds of galley types compare.
1st, types of plates determines the applicating category of screening technology.The features such as form, size and the depth of site can be anti-
Reflect the technology features such as screen species, screen angle and density.Screening technology using specific version type and uniqueness matches
The special site feature formed, being capable of accurate judgement types of plates.Such as, letterpress is in the majority with square site, and electronics is carved
The site for carving intaglio plate is presented unique " rhombus ".
2nd, printing effect is color and luster, the deep or light optical reflective characteristics by ink, stimulates the perception of vision and objective
Reflection.The impression and ink trace of printed matter constitute that printing is three-dimensional and the synthesis of plane picture, wherein by site combine and
The picture and text feature embodied, can reflect types of plates.Such as, the open circles site of soft relief printing plate, easily ink is grown in line edge；It is recessed
Pulling force effect in version printing easily makes picture and text line edge that regular zigzag or burr shape be presented.
3rd, printing ink thickness is corresponding with types of plates.The index of ink thickness is that the distinctness of galley type species is special
Sign, it highlightedly shows as existing between the ink film thickness that different types of mode of printing transferred and version type species and closed closely
System.Wherein, the oil reservoir of print is most thick, is next followed successively by intaglio plate, relief printing plate, lithographic plate printing.This difference it is caused
The reason for profound, it be unable to do without the performance of the form, size, the depth of site.
3rd, judge and determine the specific method for platemaking of printing printed text
Each major class in convex, flat, recessed, hole galley type all includes many specific mask-making technologies, have studied gravure printing
The site feature of craft and mechanical engraving version, etched plate, electric carving version, sharp engraving and Electron beam engraving version under type branch.True
On the premise of determining printing for intaglio printing, further refinement judges that the plate-making mode of intaglio printing product is that modern printed matter is examined
Emphasis.
Site characteristic differentiation version type classification using intaglio printing product is the mistake of the specific preparation method of individual printed product of tracing to the source
Journey.Sayed from practice, print characteristics are the same bases with kind identification of printed matter.Therefore, the selection of site feature and
Identification is the key that gravure printing type differentiates.Site feature that printed matter reflected must be held during analysis and intaglio plate is each
Inner link between plate-making mode.
(1) macroscopic examination of printed matter
On the basis of it is determined that printing is intaglio plate printing, analysis and differentiate printing possible application is any intaglio printing
Technology.Mainly observe and understand fineness of printed matter application, the object type of printing and printing etc., to print
The production method of product is substantially sorted out, and being easy to examine in next step has specific aim and purpose.Such as, hand engraving intaglio plate is mainly applied
In the valuable card Securities such as stamp, currency, it is indispensable in currency plate-making that custom refers to intaglio plate into " without recessed not into coin "；Laser engraving
Intaglio plate is applied to the plate-making of fine lines and word, and the word lines of microscopic carvings are that laser intaglio plate is realized in cigarette case outer membrane bracing wire
's.
(2) detail inspection of printed matter
Examine the species that purpose is the specific printing technology for wanting clear and definite intaglio plate printing to use.Site is base in intaglio printing
Plinth, site form netting twine, and netting twine forms version line, and version line forms impression.Main Basiss intaglio printing product site feature is distinguished and sentenced
Disconnected six kinds of gravure plate-making modes.As shown in Fig. 5-a, Fig. 5-b, Fig. 5-c, Fig. 5-d, Fig. 5-e and Fig. 5-f, six kinds of plate-making of intaglio plate
The site feature of mode compares figure.
1st, the main points of site are observed
Shape, size, centralizing morphism, shade, the area change of main detection and analysis site in inspection, if having
Thorough cut, if leader collapses phenomenon etc., the intersecting angle of netting twine, line number etc..Version is differentiated by the specific characteristic of different version types
Type species.Such as：Site thorough cut is the feature (see shown in Fig. 6) of electronic engraving intaglio plate, leader collapse phenomenon be etching plate spy
Sign.
2nd, the method for observing site
The amplification sem observation not less than 10 times should be used in version type diagnostic test, during initial survey.After intaglio plate printing is defined as,
Observation for site feature should use 400 times or so of microscope.Also need to record micro image if necessary, lock-in feature,
In favor of further investigation.See Fig. 7-a, 40 times of lower electric carving sites, the different size of ink dot that ink cell size is embodied, protrude face
The gradual change of color.See Fig. 7-b, 400 times of lower electric carving sites, display thorough cut links into an integrated entity multiple ink cells, increases ink dot area, but
It is the size and shape that actual ink cell is can be seen that by the small ink dot of surrounding.
3rd, the selection region of site is observed
In version type diagnostic test, during selected characteristic, should picture and text color is shallower in printing, color and light and shade transition substantially with
And picture and text fringe region selection.In intaglio plate printing, picture and text tone light and shade is determined by size, the depth of site.Therefore, it is dark
The site in weight region is intensive, is not easy to observe site feature；The light place of color and picture and text fringe region, site is sparse and feature is bright
It is aobvious；The site feature of different colours, form and size can be observed in color and light and shade transitional region.See Fig. 8-a, Fig. 8-b, Fig. 8-
Shown in c and Fig. 8-d, printing shading value different zones site feature.
(3) synthesis of printed matter feature is judged
1st, " first major class, rear individual " recognition mode is taken
Two classes are divided into according to the presence or absence of site first, i.e. hand carving and machine carving is one kind, and remaining mode is another kind of；Secondly,
According to site form, hpotogravure and electric carving, light carving and electron beam carving are distinguished；Finally, the site formed according to each way
Unique features, the concrete mode in each major class is identified one by one, carved as hand carving is different from machine, electric carving is different from light carving.
2nd, exclusive method recognition mode is taken
Impossible edition type is excluded according to site feature one by one, then unascertainable several editions type careful analysis are differentiated.
Such as according to the appearance of special-shaped site, hand carving, machine carving, electric carving and electron beam carving can be excluded, is write further according to specific features difference shadow
Version and laser carving.See Fig. 3, the site feature comparison sheet of six kinds of plate-making modes of intaglio plate.
Summarize, pass through the non-Plate making printing (printing, duplicating, digital printing) to printed text and Plate making printing (convex, flat, recessed, hole
Version) microscopic feature that is showed of production method Morphological comparison research, draw to draw a conclusion：
(1) black type seal is dipped in when impressing, and ink pad shading feature may be reflected in printed text, be the comment of printed text difference
Disconnected Consideration；The printed text formed after stamp-pad ink is mixed in photosensitive seal the distribution characteristics that " shows money or valuables one carries unintentionally " changes in regular, itself and when
Between relation curve, can for printed text formed time check foundation be provided.
(2) the ink dot species of color laser printing printed text, accumulation shape, distributional pattern feature can distinguish different brands or
The printer of model；Using the adjustment of image tolerance value, the performance of printing inkjet color ink dot can be controlled, explains color spray Gao Fang
The formation mechenism of true printed text；The ink dot morphological feature performance difference of the different digital printing printed text of screening density, is substantially distinguished from
Printed text feature is duplicated in printing.
(3) printing " fingerprint " feature that site is formed can form the same basis with kind identification of printed matter.
Dot shape, area, distribution and its microcosmic morphological feature reflected in attributes such as the infiltrations and diffusion on stock surface, not only
Can by Plate making printing with impressing, printed text distinguishes non-Plate making printing (printing, duplicate, digital printing), and can effectively distinguish
The species of four big galley types (convex, flat, recessed, hole version), and it is (e.g., recessed further to refine the specific plate-making mode in edition type
Hand engraving version, mechanical engraving version, hpotogravure, laser carving plate, electronic engraving version in version), and identify personalized plate-making skill
Art；Operation key using the identification printing process of printing net-point signature analysis is microscopical appropriately selected (more than 400 times),
The appropriate selection (region of tone consecutive variations or light areas) of printing Examination region, it is accurate to excavate case information.Profit
The degree of accuracy examined with site characteristic differentiation printed text production method is high, simple operation, is a kind of lossless, quick discrimination method.
The foregoing is only presently preferred embodiments of the present invention, be not intended to limit the invention, it is all the present invention spirit and
Within principle, any modification, equivalent substitution and improvements made etc., it should be included in the scope of the protection.
Claims (5)
1. a kind of method based on microcosmic mark characteristic differentiation seal impression generation type, seal impression is divided into printed text of impressing, non-
Plate making printing printed text and Plate making printing printed text；The non-Plate making printing printed text, which is divided into beating, duplicates printed text and digital printing printed text, its
In, the duplicating printed text of beating is divided into color laser printing printed text, color laser duplicating printed text and color ink jet printed printed text；It is described
Plate making printing printed text is divided into letterpress printed text, lithographic printing printed text, porous printing printed text and intaglio printing printed text, wherein, institute
State lithographic printing printed text and be divided into stone plate, collotype printing printed text and hectographic printing printed text, the intaglio printing printed text is divided into shadow and write
Print printed text, hand engraving printing printed text, mechanical engraving printing printed text, laser engraving printing printed text and electronic engraving printing print
Text；It is characterised in that it includes following steps：
(1) by being subjected to visual examination based on objective fact and existence general knowledge to seal impression；
(2) seal impression is analysed in depth using microcosmic mark feature, the microcosmic mark feature includes ink marks feature, ink
Point feature and site feature；It is wherein, described to impress printed text and non-Plate making printing printed text is differentiated using ink marks ink dot feature,
The Plate making printing printed text is differentiated using site feature；In the absence of site feature then judge the seal impression be by impressing,
Non- Plate making printing or woodcut in letterpress printed text and metallograph are formed, and site feature are present and are then judged the seal impression
It is to be formed by Plate making printing printed text.
2. the method according to claim 1 based on microcosmic mark characteristic differentiation seal impression generation type, its feature exist
In：In the identification for impressing printed text and non-Plate making printing printed text, the ink marks feature of the printed text of impressing includes printed text carrier paper
Easily there is the appearance infiltration of the solid shape feature of the constrain power vestige protruded and the colorant of printed text, the expansionary force effect for spreading and sinking in scattered in the back side
The plain track feature of fruit；The ink dot of the non-Plate making printing printed text is characterized as assembling shape by yellow, pinkish red, blue or green, black four color inks point
State and distribution.
3. the method according to claim 1 or 2 based on microcosmic mark characteristic differentiation seal impression generation type, its feature
It is：In the identification of non-Plate making printing printed text, the ink dot of the digital printing printed text is characterized as that colorant closeness is loose, colours
Plain consistent, the light place's red ink dot of point color and luster is in aggregation shape distribution；In the identification of print copying printed text, the color laser
Printing printed text is characterized in that the red ink dot of printed text is relatively single, and color density difference is small by electronic signal control ink dot group color,
Picture and text edge ink powder is concentrated；The color laser duplicates printed text and is characterized in that a group color ink point type and quantity change, picture and text
Configuration of surface change is complicated, and color density differs greatly, and picture and text edge loose powder is more, and overall " mottled " " hollow " information of picture and text lacks
Lose；The color ink jet printed printed text is characterized in that the ink dot species of participation group color is various, and printed text density of ink is in disorder, liquid ink
Point blending mixed effect is obvious, and color and luster is dim.
4. the method according to claim 1 based on microcosmic mark characteristic differentiation seal impression generation type, its feature exist
In：In the identification of Plate making printing printed text,
(1) the ink marks of the letterpress printed text is characterized in that layer of ink is abundant, paper shows obvious convex-concave trace because being squeezed
Mark, feel touch obvious；Site be characterized in the picture and text of 1. traditional woodcut and metallograph be on the spot ink marks, in the absence of site
Feature, 2. the sharper edge in flexographic plate site, easy taste ink, impressing form " hollow " circular contour；
The ink marks of the lithographic printing printed text be characterized in ink marks it is uniform, it is flat, without raised or ink overflow phenomenon；Without printing plate on paper
Sometimes occur the point-like of not inking on impression, picture and text or the phenomenon that shows money or valuables one carries unintentionally of ring-type blank, picture and text blank space often differ in size
Dispersivity ink fault；Site is characterized in 1. collotype and stone plate printing without site feature, during 2. hectograph site is characterized as
Center portion divides mass colour denseer, and burrs on edges shape scattered phenomenon of spreading and sinking in is obvious；
(3) the ink marks of the porous printing printed text is characterized in that layer of ink is thicker, site is characterized in picture and text lines by irregular point and piece
Shape ink marks is formed, edge is uneven；Site is characterized in generally square, circle, rhombus, the net that isometrical horizontal line and vertical line interweave easily occurs
Lattice；
(4) in the intaglio printing printed text, 1. shadow writes the ink marks of intaglio plate and is characterized in that layer of ink is thick and heavy, convex in paper, picture and text line edge
Uneven, jagged phenomenon, word edge indention, site are characterized in presentation grid, brick shape, rhombus and irregular shape, its
The depth apart from it is well arranged, have actual situation change, printing effect is soft, abundant, fine and smooth, and center mass colour is more shallow than surrounding, and center
It is white often to there is obvious " air bubble-shaped " leakage；2. the ink marks of hand engraving intaglio plate be characterized in pattern line is clearly demarcated, layer of ink is abundant, in paper
Slightly raised on face, superfine dotted line is clear and legible, color and luster is prolonged constant, and site is characterized in different by width, density, length
Striped forms, and because oozing for ink setting forward position paper fibre is scattered, it is in beard shape to make streakline edge；3. mechanical engraving intaglio plate
Ink marks be characterized in that parallel lines are fine and closely woven, neat, uniform, line edge is mellow and full, and site is characterized in no netting twine, no site, there is bar
The pin trace such as shape, point-like；4. the ink marks of Laser engraved gravure is characterized in the word of fine definition and superfine false proof lines, site spy
Sign is the size of monochromatic site, homomorphosis, the size of the heterochromatic site after chromatography, comes in every shape, intersects, have it is circular,
, easily there is special-shaped site in oval, square, rhombus, hexagon, and ink cell is that U-shaped, site variable depth, aperture area are constant, greatly
The site small, form is completely the same forms netting twine.
5. the method based on microcosmic mark characteristic differentiation seal impression generation type according to claim 1 or 4, its feature
It is：Judge and the specific method for platemaking of determination Plate making printing printed text is
1. Plate making printing printed text is subjected to visual examination；
2. being chosen in Plate making printing printed text, picture and text color is shallower, color and light and shade transition is obvious and picture and text fringe region conduct
Detail inspection region；
3. the detail inspection region of selection is tested using microscope or magnifying glass, that is, observe the shape of site, size,
Centralizing morphism, shade, area change, see whether the phenomenon that thorough cut, leader collapse, observe netting twine intersecting angle and
Line number, and an edition type species is differentiated by the site feature of different version types.
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| CN201710547387.6A CN107345922A (en) | 2017-09-21 | 2017-09-21 | Method based on microcosmic mark characteristic differentiation seal impression generation type |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109377861A (en) * | 2018-12-10 | 2019-02-22 | 无锡百得包装材料有限公司 | A kind of galley of antifalsification label and printing antifalsification label |
| CN110084348A (en) * | 2019-04-12 | 2019-08-02 | 海南亚元防伪技术研究所（普通合伙） | Three-dimensional sawtooth anti-fake product |
| CN111724385A (en) * | 2020-07-24 | 2020-09-29 | 湖北警官学院 | Ink-jet printing added altered file identification system and method based on satellite ink dots |
| CN112884106A (en) * | 2021-02-07 | 2021-06-01 | 拍拍看(海南)人工智能有限公司 | Point-to-sawtooth anti-counterfeiting method |
| CN113486901A (en) * | 2021-06-23 | 2021-10-08 | 内江师范学院 | Novel high-imitation round seal identification method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1544970A (en) * | 2003-11-10 | 2004-11-10 | 海门市人民检察院 | Method for identifying cross-overlapping sequence of handwriting and seal |
-
2017
- 2017-09-21 CN CN201710547387.6A patent/CN107345922A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1544970A (en) * | 2003-11-10 | 2004-11-10 | 海门市人民检察院 | Method for identifying cross-overlapping sequence of handwriting and seal |
Non-Patent Citations (7)
| Title |
|---|
| 中华人民共和国司法部 等: "《司法鉴定技术规范SF/Z JD0201004-2010 印刷文件鉴定规范》", 7 April 2010 * |
| 吕云平: "《浙江警察学院"十二五"规划教材 刑事科学技术》", 31 January 2014, 中国人民公安大学出版社 * |
| 罗亚平 等: "《刑事科学技术》", 28 February 2015, 中国人民公安大学出版社 * |
| 许燕燕 等: "彩色打印机伪造印文鉴定实验研究", 《云南警官学院学报》 * |
| 郝树勇: "《法庭科学实验指导教程》", 28 February 2017, 河北大学出版社 * |
| 黄建同 等: "鉴别印刷版型的新视角"网点"—印刷品的"指纹"", 《中国人民公安大学学报( 自然科学版)》 * |
| 黄建同: "印章印文的真伪鉴别方法", 《中国防伪报道》 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109377861A (en) * | 2018-12-10 | 2019-02-22 | 无锡百得包装材料有限公司 | A kind of galley of antifalsification label and printing antifalsification label |
| CN110084348A (en) * | 2019-04-12 | 2019-08-02 | 海南亚元防伪技术研究所（普通合伙） | Three-dimensional sawtooth anti-fake product |
| CN111724385A (en) * | 2020-07-24 | 2020-09-29 | 湖北警官学院 | Ink-jet printing added altered file identification system and method based on satellite ink dots |
| CN111724385B (en) * | 2020-07-24 | 2024-02-09 | 湖北警官学院 | Satellite ink dot-based ink-jet printing additive variant file identification system and method |
| CN112884106A (en) * | 2021-02-07 | 2021-06-01 | 拍拍看(海南)人工智能有限公司 | Point-to-sawtooth anti-counterfeiting method |
| CN113486901A (en) * | 2021-06-23 | 2021-10-08 | 内江师范学院 | Novel high-imitation round seal identification method |
| CN113486901B (en) * | 2021-06-23 | 2023-05-02 | 内江师范学院 | Novel high imitation round seal identification method |
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Application publication date: 20171114 |