CN117571661A - Method and system for detecting quality of ink printed matter - Google Patents
Method and system for detecting quality of ink printed matter Download PDFInfo
- Publication number
- CN117571661A CN117571661A CN202410056912.4A CN202410056912A CN117571661A CN 117571661 A CN117571661 A CN 117571661A CN 202410056912 A CN202410056912 A CN 202410056912A CN 117571661 A CN117571661 A CN 117571661A
- Authority
- CN
- China
- Prior art keywords
- ink
- printed matter
- ink printed
- quality
- value
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 36
- 238000012545 processing Methods 0.000 claims abstract description 46
- 238000004364 calculation method Methods 0.000 claims description 15
- 238000002310 reflectometry Methods 0.000 claims description 11
- 230000002159 abnormal effect Effects 0.000 claims description 9
- 238000001514 detection method Methods 0.000 claims description 8
- 238000004458 analytical method Methods 0.000 claims description 5
- 230000003247 decreasing effect Effects 0.000 claims description 3
- 238000000605 extraction Methods 0.000 claims description 3
- 238000007689 inspection Methods 0.000 claims 2
- 238000013441 quality evaluation Methods 0.000 abstract description 4
- 238000012797 qualification Methods 0.000 description 3
- 230000000007 visual effect Effects 0.000 description 3
- 239000002245 particle Substances 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000000123 paper Substances 0.000 description 1
- 235000011837 pasties Nutrition 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/30—Computing systems specially adapted for manufacturing
Abstract
The invention discloses a method and a system for detecting the quality of an ink printed matter, comprising the following steps: acquiring state data of the ink printed matter, and acquiring a state value of the ink printed matter based on the state data of the ink printed matter; step two: identifying the quality of the ink printed matter according to the state value of the ink printed matter, and obtaining a signal corresponding to the quality of the ink printed matter; step three: based on the qualified signals of the ink printed matter, a plane coordinate system is established to track the state value of the ink printed matter, so as to obtain the change time value of the quality change of the ink printed matter, and the quality of the ink printed matter is controlled in advance based on the change time value of the quality change of the ink printed matter; the fineness factor of the fineness data, the gloss factor of the gloss data and the incomplete factor of the integrity data are processed to obtain the state value of the ink printed matter, so that the state of the ink printed matter is recognized, namely, the quality evaluation of the ink printed matter is more accurate through the processing of multiple dimensions.
Description
Technical Field
The invention relates to the technical field of quality detection, in particular to a method and a system for detecting the quality of printing ink.
Background
The ink printed matter refers to various products such as paper, plastic, metal, etc., which are printed by using the ink. The ink is a uniform mixture composed of colored bodies (such as pigment, dye and the like), binder, filler, additive and the like, can be printed, is dried on a printed body, and is a pasty adhesive body with certain fluidity and color.
The ink printed matter has various colors and patterns, and can be used for manufacturing books, newspapers, magazines, packaging boxes, labels, advertisements and the like. With the continuous development of printing technology, the variety and quality of ink prints are also continuously increasing. For example, modern printers can print high quality ink prints quickly and accurately, while also allowing for special effects such as multicolor printing and stereoscopic printing.
In order to strictly control the rejection rate of the printed matter and rapidly reject the unqualified matter, the printing quality of the printed matter is required to be accurately identified and judged in the printing process.
Based on the method and the system, the quality detection method and the system of the ink printed matter are provided.
Disclosure of Invention
The invention aims to provide a quality detection method and a system for an ink printed matter, which are used for obtaining a state value of the ink printed matter by obtaining state data of the ink printed matter, namely, processing fineness factors of fineness data, gloss factors of gloss data and incomplete factors of integrity data, and evaluating multiple dimensions of fineness, gloss and integrity of the ink printed matter by the state value of the ink printed matter, so that the state of the ink printed matter is identified, namely, the quality evaluation of the ink printed matter is more accurate by processing the multiple dimensions.
The aim of the invention can be achieved by the following technical scheme:
the quality detection method of the ink printed matter comprises the following steps:
step one: acquiring state data of the ink printed matter, and acquiring a state value of the ink printed matter based on the state data of the ink printed matter;
step two: identifying the quality of the ink printed matter according to the state value of the ink printed matter, and obtaining a signal corresponding to the quality of the ink printed matter;
the quality of the ink print includes good quality of the ink print and poor quality of the ink print;
the quality of the ink printed matter is good and corresponds to the qualified signal of the ink printed matter;
the ink printing quality difference corresponds to an ink printed matter disqualification signal;
step three: and on the basis of the qualified signals of the ink printed matter, a plane coordinate system is established to track the state value of the ink printed matter, so as to obtain the change time value of the quality change of the ink printed matter, and the quality of the ink printed matter is controlled in advance on the basis of the change time value of the quality change of the ink printed matter.
As a further scheme of the invention: the state data of the ink printed matter comprises fineness data, gloss data and integrity data;
obtaining fineness factors through fineness data;
obtaining a gloss factor from the gloss data;
the incomplete factor is obtained from the integrity data.
As a further scheme of the invention: the ink printed matter state value is obtained by the following steps:
marking the fineness factor of the fineness data as Yx;
marking the gloss factor of the gloss data as Yg;
marking a non-integrity factor of the integrity data as Yw;
by the formulaThe ink print status value Yzi is calculated, wherein a1, a2, and a3 are preset scaling factors.
As a further scheme of the invention: the fineness data is processed by the following steps:
selecting a complete ink printed matter, photographing the ink printed matter to obtain an ink image, and dividing the ink image into a plurality of ink image subunits;
acquiring ink image subunits positioned at the middle position and four corner positions in an ink image;
processing each ink image subunit respectively, converting the ink image subunits into gray images or color images, performing binarization processing, and performing feature extraction on the ink image subunits to obtain image feature parameters;
processing the image characteristic parameters by a standard deviation method to obtain fineness values of ink image subunits;
and summing the fineness values of the plurality of ink image subunits and taking an average value to obtain fineness factors of fineness data.
As a further scheme of the invention: the processing procedure of the gloss data is as follows:
selecting a complete ink printed matter, and dividing the ink printed matter into a plurality of ink lighting subunits;
the printing ink collecting sub-units positioned at the middle position and the four corner positions of the printing ink print are marked as target lighting units;
transmitting a light beam which forms 90 degrees with the surface of the target lighting unit through a light source, measuring the intensity of reflected light of the target lighting unit, marking the intensity of the reflected light as 90 degrees of light intensity, and marking the intensity as E1;
transmitting a light beam which is 60 degrees with the surface of the target lighting unit through a light source, measuring the intensity of reflected light of the target lighting unit, marking the intensity of the reflected light as 60 degrees of light intensity, and marking the intensity as E2;
transmitting a light beam which is 30 degrees with the surface of the target lighting unit through a light source, measuring the intensity of reflected light of the target lighting unit, marking the intensity of the reflected light as 30 degrees of light intensity, and marking the intensity as E3;
and weighting the 90-degree light intensity E1, the 60-degree light intensity E2 and the 30-degree light intensity E3 to obtain the reflection light intensity of the target lighting unit.
As a further scheme of the invention: calculating the ratio of the reflected light intensity of the target lighting unit to the incident light intensity of the light beam emitted by the light source to obtain the reflectivity of the target lighting unit;
the reflectivity of the target lighting units is counted to obtain a reflectivity group of the target lighting units, and a geometric average calculation method is adopted to calculate the reflectivity group of the target lighting units to obtain the gloss factors of the gloss data.
As a further scheme of the invention: the processing procedure of the integrity data is as follows:
selecting a complete ink printed matter, photographing the ink printed matter to obtain an ink image, and dividing the ink image into a plurality of ink image subunits;
acquiring ink image subunits positioned at the middle position and four corner positions in an ink image;
processing each ink image subunit separately;
acquiring a characteristic color value of each ink image subunit, and performing difference calculation on the largest characteristic color value and the smallest characteristic color value in the plurality of ink image subunits to obtain an ink image color difference value;
making a limit circle in the ink image subunit, wherein the limit circle can realize that the stain point, the scratch point and the bubble point in the ink image subunit fall into the limit circle when the area of the limit circle is minimum, and acquiring the limit area value of the limit circle;
calculating the ratio of the limiting area value corresponding to each ink image subunit to the area of each ink image subunit to obtain the abnormal unit area ratio of each ink image subunit;
summing the abnormal ratios of the unit areas of the plurality of ink image subunits and taking an average value to obtain the non-integrity ratio of the ink image;
and carrying out product operation on the non-integrity ratio of the ink image and the color difference value of the ink image to obtain a non-integrity factor of the integrity data.
As a further scheme of the invention: establishing a critical line parallel to the X axis in a plane coordinate system by using the threshold value of the state value of the ink printed matter;
establishing a warning line parallel to the X axis in the plane coordinate system, wherein the warning line is positioned above the critical line;
if the state image of the ink printed matter is positioned above the warning line and is changed in a wave band manner, the processing overall quality of the ink printed matter meets the requirement, and the state image of the ink printed matter is changed in a wave band within a good quality range;
if the state image of the ink printed matter is linearly changed in an increasing trend, and the increasing trend of the state image of the ink printed matter is above the warning line, the processing overall quality of the ink printed matter meets the requirement, and the quality is better and better.
As a further scheme of the invention: if the state image of the ink printed matter linearly changes with a decreasing trend, acquiring the moment when the state image of the ink printed matter intersects with the warning line, marking the moment as the warning moment, deducing forward by taking the warning moment as the starting point, and acquiring the moment corresponding to the first highest point in the state image of the ink printed matter, marking the moment as the high mark moment;
acquiring an ink printed matter state value corresponding to the high mark time, and performing difference value calculation on the ink printed matter state value corresponding to the high mark time and a preset ink printed matter state value corresponding to the warning line to obtain an ink printed matter state change value;
then, carrying out difference value calculation on the warning moment and the high standard moment to obtain a change moment;
calculating the ratio of the state change value of the ink printed matter to the change time to obtain the state change rate of the ink printed matter in the processing process of the ink printed matter;
performing difference value calculation on a preset ink printed matter state value corresponding to the warning line and an ink printed matter state value threshold value to obtain an ink printed matter state residual value;
and (5) comparing the residual value of the state of the ink printed matter with the state change rate of the ink printed matter to obtain the change time value of the quality change of the ink printed matter.
An ink print quality detection system comprising:
the state acquisition module is used for acquiring state data of the ink printed matter, acquiring a state value of the ink printed matter based on the state data of the ink printed matter, and storing the state value of the ink printed matter to the cloud control platform;
the decision analysis module receives the ink printed matter state value transmitted by the cloud Guan Kong platform, identifies the quality of the ink printed matter according to the ink printed matter state value, obtains an ink printed matter quality corresponding signal, and transmits the ink printed matter quality corresponding signal to the cloud management and control platform;
the quality of the ink print includes good quality of the ink print and poor quality of the ink print;
the quality of the ink printed matter is good and corresponds to the qualified signal of the ink printed matter;
the ink printing quality difference corresponds to an ink printed matter disqualification signal;
the tracking processing module receives the qualified ink presswork signals transmitted by the cloud Guan Kong platform, and based on the qualified ink presswork signals, the tracking processing module establishes a plane coordinate system to track the state value of the ink presswork, so as to obtain a change time value of the quality of the ink presswork, and the quality of the ink presswork is controlled in advance based on the change time value of the quality of the ink presswork.
The invention has the beneficial effects that:
according to the invention, the state data of the ink printed matter is obtained, namely, the fineness factor of the fineness data, the glossiness factor of the glossiness data and the incompleteness factor of the integrity data are processed to obtain the state value of the ink printed matter, and the state value of the ink printed matter is used for evaluating the fineness, the glossiness and the integrity of the ink printed matter, so that the state of the ink printed matter is identified, namely, the quality evaluation of the ink printed matter is more accurate due to the processing of the multiple dimensions;
the method comprises the steps of acquiring an ink printed matter state value Yzi according to a time sequence based on an ink printed matter qualification signal, establishing a plane coordinate system to obtain an ink printed matter state image, evaluating the whole processing quality of the ink printed matter according to the obtained ink printed matter state image, acquiring the state change rate of the ink printed matter in the processing process of the ink printed matter when the ink printed matter state image linearly changes with a reduced trend, and comparing the state residual value of the ink printed matter with the state change rate of the ink printed matter to obtain an ink printed matter quality change time value; the change time value of the quality of the ink printing quality is used as early warning time to remind a manager to control the quality of the ink printing product, so that the phenomenon that the quality of the ink printing product is abnormal in the processing process is avoided, the quality of the ink printing product is controlled in advance, and the visual management of the quality of the ink printing product is completed.
Drawings
The invention is further described below with reference to the accompanying drawings.
FIG. 1 is a flow chart of a method for detecting quality of an ink print according to an embodiment of the present invention;
FIG. 2 is a flow chart of the status value identification status of the ink printed matter of the present invention;
FIG. 3 is a flow chart of a method for detecting quality of ink printing quality according to the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
Referring to fig. 1-2, the invention discloses a quality detection method of an ink printed matter, which comprises the following steps:
step one: acquiring state data of the ink printed matter, and acquiring a state value of the ink printed matter based on the state data of the ink printed matter;
step two: identifying the quality of the ink printed matter according to the state value of the ink printed matter, and obtaining a signal corresponding to the quality of the ink printed matter;
the quality of the ink print includes good quality of the ink print and poor quality of the ink print;
the quality of the ink printed matter is good and corresponds to the qualified signal of the ink printed matter;
the ink printing quality difference corresponds to an ink printed matter disqualification signal;
step three: and on the basis of the qualified signals of the ink printed matter, a plane coordinate system is established to track the state value of the ink printed matter, so as to obtain the change time value of the quality change of the ink printed matter, and the quality of the ink printed matter is controlled in advance on the basis of the change time value of the quality change of the ink printed matter.
The state data of the ink printed matter comprises fineness data, gloss data and integrity data;
the fineness data acquisition process comprises the following steps:
selecting a complete ink printed matter, photographing the ink printed matter to obtain an ink image, and dividing the ink image into a plurality of ink image subunits;
acquiring ink image subunits positioned at the middle position and four corner positions in an ink image;
processing each ink image subunit respectively, converting the ink image subunits into gray images or color images, performing binarization processing, and performing feature extraction on the ink image subunits to obtain image feature parameters;
the image characteristic parameters comprise particle size and particle size distribution range;
processing the image characteristic parameters by a standard deviation method to obtain fineness values of ink image subunits;
summing the fineness values of the plurality of ink image subunits and taking an average value to obtain fineness factors of fineness data;
the gloss data acquisition process comprises the following steps:
selecting a complete ink printed matter, and dividing the ink printed matter into a plurality of ink lighting subunits;
the printing ink collecting sub-units positioned at the middle position and the four corner positions of the printing ink print are marked as target lighting units;
transmitting a light beam which forms 90 degrees with the surface of the target lighting unit through a light source, measuring the intensity of reflected light of the target lighting unit, marking the intensity of the reflected light as 90 degrees of light intensity, and marking the intensity as E1;
transmitting a light beam which is 60 degrees with the surface of the target lighting unit through a light source, measuring the intensity of reflected light of the target lighting unit, marking the intensity of the reflected light as 60 degrees of light intensity, and marking the intensity as E2;
transmitting a light beam which is 30 degrees with the surface of the target lighting unit through a light source, measuring the intensity of reflected light of the target lighting unit, marking the intensity of the reflected light as 30 degrees of light intensity, and marking the intensity as E3;
the method comprises the steps of carrying out weighting treatment on the 90-degree light intensity E1, the 60-degree light intensity E2 and the 30-degree light intensity E3, namely, distributing the weight ratio of the 90-degree light intensity E1 to be n1, distributing the weight ratio of the 60-degree light intensity E2 to be n2 and distributing the weight ratio of the 30-degree light intensity E3 to be n3;
calculating to obtain the reflected light intensity Ei of the target lighting unit according to a formula ei=e1×n1+e2×n2+e3×n3, wherein n1+n2+n3=1, and all of n3, n2 and n1 are larger than 0;
the light intensity of the light beam emitted by the light source is consistent with that of the light beam of 90 degrees, the light beam of 60 degrees and the light beam of 30 degrees, and the incident light of the light beam emitted by the light source is strongly marked as Ej;
calculating the ratio of the reflected light intensity Ei of the target lighting unit to the incident light intensity Ej of the light beam emitted by the light source to obtain the reflectivity of the target lighting unit;
counting the reflectivities of a plurality of target lighting units to obtain a reflectivity group of the target lighting units, and calculating the reflectivity group of the target lighting units by adopting a geometric average calculation method to obtain a gloss factor of gloss data;
the integrity data acquisition process comprises the following steps:
selecting a complete ink printed matter, photographing the ink printed matter to obtain an ink image, and dividing the ink image into a plurality of ink image subunits;
acquiring ink image subunits positioned at the middle position and four corner positions in an ink image;
processing each ink image subunit separately;
acquiring a characteristic color value of each ink image subunit, and performing difference calculation on the largest characteristic color value and the smallest characteristic color value in the plurality of ink image subunits to obtain an ink image color difference value;
obtaining the stain points, the scratch points and the bubble points in each ink image subunit, making a limit circle in each ink image subunit, and obtaining the limit area value of the limit circle when the area of the limit circle is minimum and the stain points, the scratch points and the bubble points in each ink image subunit fall into the limit circle;
calculating the area of the ink image subunit to obtain a unit area value;
calculating the ratio of the limiting area value corresponding to each ink image subunit to the unit area value to obtain the unit area abnormal ratio of each ink image subunit;
summing the abnormal ratios of the unit areas of the plurality of ink image subunits and taking an average value to obtain the non-integrity ratio of the ink image;
carrying out product operation on the non-integrity ratio of the ink image and the color difference value of the ink image to obtain a non-integrity factor of the integrity data;
the characteristic color value acquisition process of the ink image subunit comprises the following steps:
acquiring RGB values of the ink image subunits, and acquiring a maximum R value in the ink image subunits, which is recorded as R1; acquiring a maximum G value in an ink image subunit, and marking the maximum G value as G1; acquiring the maximum B value in the ink image subunit, and marking the maximum B value as B1;
and carrying out product operation on R1, G1 and B1 to obtain the characteristic color value of the ink image subunit.
Marking the fineness factor of the fineness data as Yx;
marking the gloss factor of the gloss data as Yg;
marking a non-integrity factor of the integrity data as Yw;
by the formulaThe ink print status value Yzi is calculated, wherein a1, a2, and a3 are preset scaling factors.
Presetting an ink print state value threshold value as yzi, and comparing the ink print state value Yzi with the ink print state value threshold value yzi;
if the state value Yzi of the ink printed matter is more than or equal to the state value threshold yzi of the ink printed matter, the quality of the ink printed matter is good, and an ink printed matter qualification signal is obtained;
if the ink print status value Yzi is less than the ink print status value threshold yzi, this indicates that the ink print quality is poor, and an ink print reject signal is obtained.
Acquiring an ink print status value Yzi in time sequence based on the ink print pass signal;
establishing a plane coordinate system, taking printing time of an ink printed matter as a Y axis, taking a state value of the ink printed matter as an X axis, marking the state value of the ink printed matter in the plane coordinate system in time sequence, and connecting all the points in time sequence through a smooth curve to obtain a state image of the ink printed matter;
establishing a critical line parallel to the X axis in a plane coordinate system by using the threshold value of the state value of the ink printed matter;
establishing a warning line parallel to the X axis in the plane coordinate system, wherein the warning line is positioned above the critical line;
the warning line is a state identification value of the state value of the ink printed matter, is set manually, indicates that the quality of the ink printed matter is good, indicates that the state value of the ink printed matter reaches the warning line, indicates the risk of the state value of the ink printed matter developing downwards to a critical line, and reminds workers of paying attention;
if the state image of the ink printed matter is positioned above the warning line and is changed in a wave band manner, the processing overall quality of the ink printed matter meets the requirement, and the state image of the ink printed matter is changed in a wave band within a good quality range;
if the state image of the ink printed matter linearly changes in an increasing trend and the increasing trend of the state image of the ink printed matter is above the warning line, the processing overall quality of the ink printed matter meets the requirements, and the quality is better and better;
if the state image of the ink printed matter linearly changes with a decreasing trend, acquiring the moment when the state image of the ink printed matter intersects with the warning line, marking the moment as the warning moment, deducing forward by taking the warning moment as the starting point, and acquiring the moment corresponding to the first highest point in the state image of the ink printed matter, marking the moment as the high mark moment;
acquiring an ink printed matter state value corresponding to the high mark time, and performing difference value calculation on the ink printed matter state value corresponding to the high mark time and a preset ink printed matter state value corresponding to the warning line to obtain an ink printed matter state change value;
then, carrying out difference value calculation on the warning moment and the high standard moment to obtain a change moment;
calculating the ratio of the state change value of the ink printed matter to the change time to obtain the state change rate of the ink printed matter in the processing process of the ink printed matter;
performing difference value calculation on a preset ink printed matter state value corresponding to the warning line and an ink printed matter state value threshold value to obtain an ink printed matter state residual value;
the state residual value of the ink printed matter is compared with the state change rate of the ink printed matter, and the change time value of the quality change of the ink printed matter is obtained;
the change time value of the quality of the ink printing quality is used as early warning time to remind a manager to control the quality of the ink printing product, so that the phenomenon that the quality of the ink printing product is abnormal in the processing process is avoided, the quality of the ink printing product is controlled in advance, and the visual management of the quality of the ink printing product is completed.
Example 2
Referring to fig. 3, the present invention is an ink quality detection system, including a status acquisition module, a decision analysis module, a tracking processing module, and a cloud control platform;
the system comprises a state acquisition module, a decision analysis module, a tracking processing module and a cloud control platform;
the state acquisition module is used for acquiring state data of the ink printed matter, acquiring a state value of the ink printed matter based on the state data of the ink printed matter, and storing the state value of the ink printed matter to the cloud control platform;
the decision analysis module receives the ink print state value transmitted by the cloud Guan Kong platform, identifies the quality of the ink print according to the ink print state value, obtains an ink print quality corresponding signal, and transmits the ink print quality corresponding signal to the cloud control platform;
the quality of the ink print includes good quality of the ink print and poor quality of the ink print;
the quality of the ink printed matter is good and corresponds to the qualified signal of the ink printed matter;
the ink printing quality difference corresponds to an ink printed matter disqualification signal;
the tracking processing module receives the ink printed matter qualified signal transmitted by the cloud Guan Kong platform, establishes a plane coordinate system based on the ink printed matter qualified signal, and carries out tracking processing on the state value of the ink printed matter to obtain an ink printing quality change time value, and controls the quality of the ink printed matter in advance based on the ink printing quality change time value.
One of the core points of the present invention is: acquiring state data of the ink printed matter, namely, processing fineness factors of fineness data, gloss factors of gloss data and incomplete factors of integrity data to obtain state values of the ink printed matter, and evaluating multiple dimensions of fineness, gloss and integrity of the ink printed matter by the state values of the ink printed matter so as to complete identification of the state of the ink printed matter, namely, the quality evaluation of the ink printed matter is more accurate by processing the multiple dimensions;
one of the core points of the present invention is: acquiring an ink printed matter state value Yzi according to a time sequence based on an ink printed matter qualification signal, establishing a plane coordinate system to obtain an ink printed matter state image, evaluating the processing overall quality of the ink printed matter according to the obtained ink printed matter state image, acquiring the state change rate of the ink printed matter in the processing process of the ink printed matter when the ink printed matter state image linearly changes with a reduced trend, and comparing the ink printed matter state residual value with the ink printed matter state change rate to obtain an ink printed matter quality change time value; the change time value of the quality of the ink printing quality is used as early warning time to remind a manager to control the quality of the ink printing product, so that the phenomenon that the quality of the ink printing product is abnormal in the processing process is avoided, the quality of the ink printing product is controlled in advance, and the visual management of the quality of the ink printing product is completed.
The foregoing describes one embodiment of the present invention in detail, but the description is only a preferred embodiment of the present invention and should not be construed as limiting the scope of the invention. All equivalent changes and modifications within the scope of the present invention are intended to be covered by the present invention.
Claims (10)
1. An ink quality detection method is characterized by comprising the following steps:
step one: acquiring state data of the ink printed matter, and acquiring a state value of the ink printed matter based on the state data of the ink printed matter;
step two: identifying the quality of the ink printed matter according to the state value of the ink printed matter, and obtaining a signal corresponding to the quality of the ink printed matter;
the quality of the ink print includes good quality of the ink print and poor quality of the ink print;
the quality of the ink printed matter is good and corresponds to the qualified signal of the ink printed matter;
the ink printing quality difference corresponds to an ink printed matter disqualification signal;
step three: and on the basis of the qualified signals of the ink printed matter, a plane coordinate system is established to track the state value of the ink printed matter, so as to obtain the change time value of the quality change of the ink printed matter, and the quality of the ink printed matter is controlled in advance on the basis of the change time value of the quality change of the ink printed matter.
2. The method of claim 1, wherein the status data of the ink print includes fineness data, gloss data, and integrity data;
obtaining fineness factors through fineness data;
obtaining a gloss factor from the gloss data;
the incomplete factor is obtained from the integrity data.
3. The method for detecting quality of ink printed matter according to claim 2, wherein the process of obtaining the status value of the ink printed matter is as follows:
marking the fineness factor of the fineness data as Yx;
marking the gloss factor of the gloss data as Yg;
marking a non-integrity factor of the integrity data as Yw;
by the formulaThe ink print status value Yzi is calculated, wherein a1, a2, and a3 are preset scaling factors.
4. A method for detecting quality of ink printed matter according to claim 3, wherein the processing of the fineness data is:
selecting a complete ink printed matter, photographing the ink printed matter to obtain an ink image, and dividing the ink image into a plurality of ink image subunits;
acquiring ink image subunits positioned at the middle position and four corner positions in an ink image;
processing each ink image subunit respectively, converting the ink image subunits into gray images or color images, performing binarization processing, and performing feature extraction on the ink image subunits to obtain image feature parameters;
processing the image characteristic parameters by a standard deviation method to obtain fineness values of ink image subunits;
and summing the fineness values of the plurality of ink image subunits and taking an average value to obtain fineness factors of fineness data.
5. A method for detecting quality of ink printed matter according to claim 3, wherein the processing of gloss data is:
selecting a complete ink printed matter, and dividing the ink printed matter into a plurality of ink lighting subunits;
the printing ink collecting sub-units positioned at the middle position and the four corner positions of the printing ink print are marked as target lighting units;
transmitting a light beam which forms 90 degrees with the surface of the target lighting unit through a light source, measuring the intensity of reflected light of the target lighting unit, marking the intensity of the reflected light as 90 degrees of light intensity, and marking the intensity as E1;
transmitting a light beam which is 60 degrees with the surface of the target lighting unit through a light source, measuring the intensity of reflected light of the target lighting unit, marking the intensity of the reflected light as 60 degrees of light intensity, and marking the intensity as E2;
transmitting a light beam which is 30 degrees with the surface of the target lighting unit through a light source, measuring the intensity of reflected light of the target lighting unit, marking the intensity of the reflected light as 30 degrees of light intensity, and marking the intensity as E3;
and weighting the 90-degree light intensity E1, the 60-degree light intensity E2 and the 30-degree light intensity E3 to obtain the reflection light intensity of the target lighting unit.
6. The method for detecting the quality of the printing ink according to claim 5, wherein the reflectance of the target lighting unit is obtained by calculating the ratio of the reflected light intensity of the target lighting unit to the incident light intensity of the light beam emitted by the light source;
the reflectivity of the target lighting units is counted to obtain a reflectivity group of the target lighting units, and a geometric average calculation method is adopted to calculate the reflectivity group of the target lighting units to obtain the gloss factors of the gloss data.
7. A method of ink quality inspection according to claim 3, wherein the integrity data is processed by:
selecting a complete ink printed matter, photographing the ink printed matter to obtain an ink image, and dividing the ink image into a plurality of ink image subunits;
acquiring ink image subunits positioned at the middle position and four corner positions in an ink image;
processing each ink image subunit separately;
acquiring a characteristic color value of each ink image subunit, and performing difference calculation on the largest characteristic color value and the smallest characteristic color value in the plurality of ink image subunits to obtain an ink image color difference value;
making a limit circle in the ink image subunit, wherein the limit circle can realize that the stain point, the scratch point and the bubble point in the ink image subunit fall into the limit circle when the area of the limit circle is minimum, and acquiring the limit area value of the limit circle;
calculating the ratio of the limiting area value corresponding to each ink image subunit to the area of each ink image subunit to obtain the abnormal unit area ratio of each ink image subunit;
summing the abnormal ratios of the unit areas of the plurality of ink image subunits and taking an average value to obtain the non-integrity ratio of the ink image;
and carrying out product operation on the non-integrity ratio of the ink image and the color difference value of the ink image to obtain a non-integrity factor of the integrity data.
8. The method for detecting quality of ink printed matter according to claim 1, wherein a critical line parallel to the X-axis is established in a planar coordinate system with a threshold value of status value of ink printed matter;
establishing a warning line parallel to the X axis in the plane coordinate system, wherein the warning line is positioned above the critical line;
the warning line is a preset state value of the ink printed matter according to experience;
if the state image of the ink printed matter is positioned above the warning line and is changed in a wave band manner, the processing overall quality of the ink printed matter meets the requirement, and the state image of the ink printed matter is changed in a wave band within a good quality range;
if the state image of the ink printed matter is linearly changed in an increasing trend, and the increasing trend of the state image of the ink printed matter is above the warning line, the processing overall quality of the ink printed matter meets the requirement, and the quality is better and better.
9. The method for detecting quality of ink printed matter according to claim 8, wherein if the status image of the ink printed matter changes linearly with a decreasing trend, a time when the status image of the ink printed matter intersects with a warning line is obtained and is marked as a warning time, and the warning time is further deduced forward, and a time corresponding to a first highest point in the status image of the ink printed matter is obtained and is marked as a high mark time;
acquiring an ink printed matter state value corresponding to the high mark time, and performing difference value calculation on the ink printed matter state value corresponding to the high mark time and a preset ink printed matter state value corresponding to the warning line to obtain an ink printed matter state change value;
then, carrying out difference value calculation on the warning moment and the high standard moment to obtain a change moment;
calculating the ratio of the state change value of the ink printed matter to the change time to obtain the state change rate of the ink printed matter in the processing process of the ink printed matter;
performing difference value calculation on a preset ink printed matter state value corresponding to the warning line and an ink printed matter state value threshold value to obtain an ink printed matter state residual value;
and (5) comparing the residual value of the state of the ink printed matter with the state change rate of the ink printed matter to obtain the change time value of the quality change of the ink printed matter.
10. An ink quality inspection system, comprising:
the state acquisition module is used for acquiring state data of the ink printed matter, acquiring a state value of the ink printed matter based on the state data of the ink printed matter, and storing the state value of the ink printed matter to the cloud control platform;
the decision analysis module receives the ink printed matter state value transmitted by the cloud Guan Kong platform, identifies the quality of the ink printed matter according to the ink printed matter state value, obtains an ink printed matter quality corresponding signal, and transmits the ink printed matter quality corresponding signal to the cloud management and control platform;
the quality of the ink print includes good quality of the ink print and poor quality of the ink print;
the quality of the ink printed matter is good and corresponds to the qualified signal of the ink printed matter;
the ink printing quality difference corresponds to an ink printed matter disqualification signal;
the tracking processing module receives the qualified ink presswork signals transmitted by the cloud Guan Kong platform, and based on the qualified ink presswork signals, the tracking processing module establishes a plane coordinate system to track the state value of the ink presswork, so as to obtain a change time value of the quality of the ink presswork, and the quality of the ink presswork is controlled in advance based on the change time value of the quality of the ink presswork.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410056912.4A CN117571661A (en) | 2024-01-16 | 2024-01-16 | Method and system for detecting quality of ink printed matter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410056912.4A CN117571661A (en) | 2024-01-16 | 2024-01-16 | Method and system for detecting quality of ink printed matter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117571661A true CN117571661A (en) | 2024-02-20 |
Family
ID=89886591
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410056912.4A Pending CN117571661A (en) | 2024-01-16 | 2024-01-16 | Method and system for detecting quality of ink printed matter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117571661A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060170996A1 (en) * | 2005-02-02 | 2006-08-03 | Steven Headley | Color control of a web printing press utilizing intra-image color measurements |
| WO2010020569A2 (en) * | 2008-08-21 | 2010-02-25 | Koenig & Bauer Aktiengesellschaft | Method for regulating the ink in a printing press |
| CN103954634A (en) * | 2014-05-08 | 2014-07-30 | 昆明瑞丰印刷有限公司 | Online quality detection system for printed matter |
| CN111693540A (en) * | 2020-06-16 | 2020-09-22 | 成都印钞有限公司 | Device and method for detecting printing image-text quality of colorful light variable ink |
| CN112198090A (en) * | 2020-11-10 | 2021-01-08 | 楚雄吉兴彩印有限责任公司 | Printing ink viscosity detection method, system, platform and storage medium |
| CN214703378U (en) * | 2020-12-10 | 2021-11-12 | 长葛市大阳纸业有限公司 | Front and back arc-shaped printed matter inspection device of inspection platform |
| JP2022013265A (en) * | 2020-07-03 | 2022-01-18 | ダックエンジニアリング株式会社 | Quality inspection device for glossy surface printing |
| CN116554727A (en) * | 2023-03-31 | 2023-08-08 | 江西科态新材料科技有限公司 | Environment-friendly water-based ink and preparation method thereof |
-
2024
- 2024-01-16 CN CN202410056912.4A patent/CN117571661A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060170996A1 (en) * | 2005-02-02 | 2006-08-03 | Steven Headley | Color control of a web printing press utilizing intra-image color measurements |
| WO2010020569A2 (en) * | 2008-08-21 | 2010-02-25 | Koenig & Bauer Aktiengesellschaft | Method for regulating the ink in a printing press |
| CN103954634A (en) * | 2014-05-08 | 2014-07-30 | 昆明瑞丰印刷有限公司 | Online quality detection system for printed matter |
| CN111693540A (en) * | 2020-06-16 | 2020-09-22 | 成都印钞有限公司 | Device and method for detecting printing image-text quality of colorful light variable ink |
| JP2022013265A (en) * | 2020-07-03 | 2022-01-18 | ダックエンジニアリング株式会社 | Quality inspection device for glossy surface printing |
| CN112198090A (en) * | 2020-11-10 | 2021-01-08 | 楚雄吉兴彩印有限责任公司 | Printing ink viscosity detection method, system, platform and storage medium |
| CN214703378U (en) * | 2020-12-10 | 2021-11-12 | 长葛市大阳纸业有限公司 | Front and back arc-shaped printed matter inspection device of inspection platform |
| CN116554727A (en) * | 2023-03-31 | 2023-08-08 | 江西科态新材料科技有限公司 | Environment-friendly water-based ink and preparation method thereof |
Non-Patent Citations (2)
| Title |
|---|
| 孙永泰;: "印刷油墨的光泽度及影响印迹光泽的因素", 印刷质量与标准化, no. 02, 15 February 2017 (2017-02-15) * |
| 李攀;: "纳米油墨之我见", 《印刷质量与标准化》, no. 04, 15 April 2015 (2015-04-15) * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2359313B1 (en) | Method and system for item identification | |
| CA1329644C (en) | Register measuring system and process | |
| CN101863161A (en) | The color value correction relevant with angle | |
| CN108801938A (en) | A kind of aberration On-line Measuring Method and system | |
| JP5881576B2 (en) | Image evaluation apparatus, image evaluation method, image evaluation system, and program | |
| US5731989A (en) | Method and device for determining a measurement for color control in a printing process | |
| US20100039510A1 (en) | Method and DEVICE for PRINT INSPECTION | |
| CN109932371A (en) | Mirror surface/class mirror article defect detecting device | |
| CN108372660A (en) | Method and system for being aligned in the injector for spraying transparent material in printer | |
| CN110501335B (en) | Method for detecting and characterizing quality of star mark printing product | |
| CN116277973A (en) | 3D prints detecting system | |
| JP2014149286A (en) | Surface roughness measurement device | |
| CN117571661A (en) | Method and system for detecting quality of ink printed matter | |
| JP4534795B2 (en) | Coating film evaluation apparatus and method | |
| CN111402343A (en) | High-precision calibration plate and calibration method | |
| US20190283445A1 (en) | Light field illumination container inspection system | |
| TW200839222A (en) | Mark detecting method | |
| JP2019046134A (en) | Image inspection device, and image inspection method | |
| CN112078237B (en) | Hot stamping system with automatic hot stamping quality detection device | |
| JP2022055298A (en) | Information processing device, information processing method, and program | |
| CN102687005B (en) | reflection densitometer | |
| CN213161972U (en) | Printed matter inspection equipment of categorised early warning | |
| US11825060B2 (en) | Fully integrated digital color management system | |
| US11940328B2 (en) | System and method for controlling the colour of a moving article | |
| CN108267459A (en) | A kind of method and device of backlight detection printed matter low contrast defect |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |