CN115817039A - Intaglio printing method based on ink-flying inhibition - Google Patents
Intaglio printing method based on ink-flying inhibition Download PDFInfo
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Abstract
The invention discloses a gravure printing method based on ink flying inhibition, which comprises a printing detection system, wherein the printing detection system comprises a data presetting module, a detection execution module, a data analysis module and a scheme determining module, the data presetting module and the detection execution module are both electrically connected with the data analysis module, the data analysis module is electrically connected with the scheme determining module, the data presetting module comprises a preliminary setting module and a starting module, the detection execution module comprises a color comparison module and a protrusion judgment module, the data analysis module comprises a data judgment module and a quality analysis module, the scheme determining module comprises an operation judgment module and an adjustment module, the data presetting module is used for carrying out normal setting of transmission speed and drying temperature and starting a detection process, the detection execution module is used for detecting the final color depth and the dislocation condition of an image, and the device solves the problem of poor effect after current overprinting.
Description
Technical Field
The invention relates to the technical field of printing, in particular to a gravure printing method based on ink flying inhibition.
Background
With the continuous advance of science and technology, the continuous improvement of printing technology, the flying ink inhibition technology has been well improved, intaglio printing is one of the printing technologies, and the advantages of thick ink layer of the printed product, bright color, high saturation, high printing plate printing endurance, stable quality of the printed product, high printing speed and the like occupy an extremely important position in the fields of printing packaging and graphic publishing, the flow of intaglio printing is usually "film unwinding → tension control → printing first color → drying → overprinting second color → drying → overprinting third color → drying → overprinting fourth color → drying → traction → rolling", before printing, workers firstly preset the drying temperature and the transmission speed at a control end according to the characteristics of the ink and the substrate to be printed, while the substrate cannot accurately know the affinity and the dislocation situation of the printing ink by combining various factors in the processing environment, and if the substrate cannot realize a good feeding effect with the printing ink, the quality of the printed product is not high.
Meanwhile, under the condition of consistent concave depth, if the affinity between the ink and the substrate is low and the dislocation is high, the finished product effect of the gravure printing of the product is also reduced, the dislocation degree can be reduced by adjusting the drying temperature, and the affinity degree can be improved by adjusting the conveying speed, but how to detect and improve becomes a problem to be solved urgently by the people in the field.
Disclosure of Invention
The present invention is directed to a gravure printing method based on ink-flying suppression, which solves the problems set forth in the background art described above.
In order to solve the technical problems, the invention provides the following technical scheme: the intaglio printing method based on ink-flying inhibition comprises a printing detection system, wherein the printing detection system comprises a data presetting module, a detection execution module, a data analysis module and a scheme determination module, the data presetting module and the detection execution module are both electrically connected with the data analysis module, and the data analysis module is electrically connected with the scheme determination module;
the data presetting module comprises a preliminary setting module and a starting module, the detection execution module comprises a color comparison module and a protrusion judgment module, the data analysis module comprises a data judgment module and a quality analysis module, and the scheme determination module comprises an operation judgment module and an adjustment module.
The invention further discloses that the data presetting module is used for carrying out normal setting of the transmission speed and the drying temperature and starting a detection process, the detection execution module is used for detecting the final color depth and the dislocation condition of the image and transmitting the detection data to the data analysis module, the analysis module is used for judging the affinity degree and the dislocation condition between the ink and the base material to be printed and carrying out quality grade classification, and the scheme determining module is used for carrying out preset data adjustment according to the classification result so as to improve the quality of finished products during formal printing.
The invention further relates to a method for operating the printing inspection system, which comprises the following steps:
s1: firstly, a worker performs a prepress preparation process, prepares a substrate to be printed, ink, a doctor blade, a guide roller, a compression roller and a printing roller according to the requirements of a construction order, adjusts the position distance and adjusts a power system and an electrical system;
s2: the plate feeding is carried out, the plate surface is protected from being touched, meanwhile, the plate cylinder is fastened on the printing machine, the loosening of the plate cylinder during formal printing is prevented, after the operation device is prepared, the plate is carefully calibrated, the gauge is adjusted, and the pressure is corrected;
s3: a worker inputs a normal transmission speed value and a normal drying temperature value in a primary setting module, a fixed length of initial printing of a base material to be printed is set as a test run detection area, a detection execution module carries out relevant data detection on overprinting conditions between ink and the base material in the test run part, and a detection result is transmitted to a data analysis module;
s4: the data analysis module judges and analyzes the detected data to obtain affinity data and dislocation data, the scheme determination module formulates new operation data according to the obtained data, the adjustment module adjusts printing data according to preset data, and after the processing data is adjusted, the printing process is formally started;
s5: the test run detection zone is labeled for excision.
The invention further illustrates that the specific steps of S3 are as follows:
s31: obtaining a normal transmission velocity value V according to the ink characteristics and the substrate characteristics Often times And normal dry temperature value T Often times Setting the length of the detection area according to the size of the printed image;
s32: when test run detection is carried out, the base material is brushed for four times, drying is carried out after each brushing, the color contrast module acquires the final color image on the base material, and color depth contrast is carried out with the color of the sample to obtain the color depth acquisition degree;
s33: the protrusion judging module performs bump scanning on the side surfaces of the substrate after the first overprinting and the last overprinting drying, when the printing ink does not reach the drying effect, the printing ink dislocation during transmission is easily caused, and when the intaglio printing of an image is performed, the printing ink dislocation effect degree can be obtained through the overprinting length of the protrusion;
s34: and the data analysis module collects the chroma acquisition degree and the ink dislocation effect degree.
The invention further explains that the specific content of the data detection of the color-forming contrast module is as follows:
a1: inputting a sample image in a color contrast module in advance, setting the color depth of a sample as a color depth final value '1', setting the primary color of a base material when the base material is not printed as a color depth initial value '0', and carrying out layer-by-layer filtering on the color depth between the initial value and the final value to obtain a plurality of sample depths with different degrees, and obtaining corresponding color depth values to establish a color depth library;
a2: and the color forming comparison module acquires an image of the last drying procedure, compares the image with the depth in the color depth library to obtain a final printing color depth value, defines the color depth acquisition degree as S, and is less than or equal to 0 and less than or equal to 1.
The invention further explains that the data detection of the protrusion judgment module comprises the following specific contents:
b1: the total length of the salient points of the input side images in the protrusion judging module when the overprinting does not generate dislocation is marked as n;
b2: the protrusion judgment module acquires the width d of the side salient point actually acquired during the first overprinting i ；
B3: the protrusion judgment module acquires that the width of the actually acquired side salient point is D when the last overprinting is carried out i ；
B4: the protrusion judging module respectively calculates the dislocation effect degrees after the first overprinting drying and the last overprinting drying according to the obtained data, and records the dislocation effect degrees as Z and Z after the first overprinting dryingZ 1 And the dislocation effect degree after the last drying is recorded as Z 2 ；
B5: z is 1 And Z 2 The calculation formula of (a) is as follows:
that is, the smaller the Z value, the lower the dislocation degree, m is the total number of the side overprinting bumps, i is the number of m, Z 1 ≥1，Z 2 More than or equal to 1, and setting the maximum value of the dislocation effect degree to be 1.5, and if the obtained Z value is more than 1.5, determining that the dislocation degree can not be reduced only by temperature adjustment.
The invention further describes that the judgment standard of the data judgment module is set as follows:
setting the minimum value of the color depth acquisition degree to be 90 percent, if 0 & lts & gt & lt 90 percent, directly determining that the affinity between the ink and the base material is unqualified, if 90 & lts & gt & lt 100 percent, discussing by combining with the dislocation effect degree, judging how to adjust the preset value at the current stage, and further improving the printing quality of a finished product;
data judging module is obtaining Z 1 And Z 2 Then, the two values are compared by using a quotient formula, which is marked as k, and
when Z is 1 And Z 2 All of which are less than 1.5, when k is more than or equal to 85% and less than or equal to 100%, the dislocation degree among the printing ink is reduced in the subsequent drying procedure, and when k is more than or equal to 50% and less than or equal to 100%, the dislocation degree among the printing ink is reduced<When the k =50%, it indicates that the last overprinted image and the first overprinted image do not overlap at all and are the minimum value of k.
The present invention further illustrates that the affinity and the misalignment between the substrate and the ink of the mass analysis module in S4 are determined as follows:
at 0<S<90%, or any dislocation effect degree greater than 1.5, directly identifying V Often times And T Often times Under the conditions, the low affinity degree between the ink and the substrate, or the low drying effect and the serious dislocation degree can cause the low printing quality, if only adjusting the transmission speed and the drying temperature, the required printing effect can not be achieved, and the quality is judged to be 0 grade;
when S is more than or equal to 90% and less than or equal to 100% and k is more than or equal to 50% and less than 85%, the subsequent drying process has a certain dislocation improvement effect on the drying of the ink, but has a large improvement space, and the affinity degree is qualified, and the quality degree is judged to be the I-grade quality degree;
and when S is more than or equal to 90% and less than or equal to 100% and k is more than or equal to 85% and less than or equal to 100%, the subsequent drying process has great drying effect on the ink, the caused dislocation degree is low, the affinity degree is qualified, and the grade II quality degree is judged.
The invention further explains that the scheme determination content of the operation judgment module is as follows:
when the quality degree is 0 grade, the worker directly adjusts the transmission speed to be the lowest, adjusts the temperature after each overprinting to be the maximum value, then repeats S3-S4 until the quality degree reaches I grade or above, and then carries out the following adjusting procedures;
when the quality degree is I grade, the conveying speed is related to S, S is compared with 100%, the conveying speed is reduced by 5m/min when the difference is 1%, a new conveying speed value is obtained, the drying temperature is increased, the drying temperature is related to k, k is compared with 85%, the drying temperature is increased by 1% when the difference is 1%, and a new drying temperature is obtained;
when the quality degree is II grade, the adjustment mode of the conveying speed is as above, a new conveying speed value is obtained, the drying temperature is related to k, k is compared with 100%, and the drying temperature is increased by 1 ℃ every 5% difference, so that a new drying temperature is obtained;
by adjusting the conveying speed and the drying temperature, the printing quality of the base material is effectively improved.
Compared with the prior art, the invention has the following beneficial effects: according to the invention, the printing detection system is adopted to perform quality detection within a certain distance during printing, and obtain a quality result, the dislocation degree can be reduced by adjusting the drying temperature, and the affinity degree can be improved by adjusting the conveying speed, so that the finished product quality during formal printing is improved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic of the process of the present invention;
fig. 2 is a schematic diagram of the system of the present invention.
Detailed Description
The present invention will be described in further non-limiting detail with reference to the following preferred embodiments and accompanying drawings. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-2, the present invention provides the following technical solutions: a gravure printing method based on ink-flying inhibition comprises a printing detection system, wherein the printing detection system comprises a data presetting module, a detection execution module, a data analysis module and a scheme determination module;
the data presetting module comprises a preliminary setting module and a starting module, the detection execution module comprises a color comparison module and a protrusion judgment module, the data analysis module comprises a data judgment module and a quality analysis module, and the scheme determination module comprises an operation judgment module and an adjustment module.
The data presetting module is used for carrying out normal state setting of the transmission speed and the drying temperature, the detection process is started, the detection execution module is used for detecting the final color depth and the dislocation condition of the image, the detection data are transmitted to the data analysis module, the analysis module judges the affinity degree and the dislocation condition between the printing ink and the base material to be printed, quality grade classification is carried out, and the scheme determining module is used for carrying out preset data adjustment according to the classification result, so that the quality of finished products in formal printing is improved.
The operation method of the printing detection system comprises the following steps:
s1: firstly, a worker performs a prepress preparation process, prepares a substrate to be printed, ink, a doctor blade, a guide roller, a compression roller and a printing roller according to the requirements of a construction order, adjusts the position distance and adjusts a power system and an electrical system;
s2: the plate feeding is carried out, the plate surface is protected from being touched, meanwhile, the plate cylinder is fastened on the printing machine, the loosening of the plate cylinder during formal printing is prevented, after the operation device is prepared, the plate is carefully calibrated, the gauge is adjusted, and the pressure is corrected;
s3: the working personnel inputs a normal state transmission speed value and a normal state drying temperature value in the preliminary setting module, a fixed length of initial printing of the base material to be printed is set as a test run detection area, the detection execution module carries out related data detection on overprinting conditions between the ink and the base material in the test run part, and the detection result is transmitted to the data analysis module;
s4: the data analysis module judges and analyzes the detected data to obtain affinity data and dislocation data, the scheme determination module formulates new operation data according to the obtained data, the adjustment module adjusts printing data according to preset data, and after the processing data is adjusted, the printing process is formally started;
s5: the test run detection zone is labeled for excision.
The specific steps of S3 are as follows:
s31: obtaining a normal transmission velocity value V according to the ink characteristics and the substrate characteristics Often times And normal dry temperature value T Often times Setting the length of the detection area according to the size of the printed image;
s32: when test run detection is carried out, the base material is brushed for four times, drying is carried out after each brushing, the color contrast module acquires the final color image on the base material, and color depth contrast is carried out with the color of the sample to obtain the color depth acquisition degree;
s33: the protrusion judging module performs bump scanning on the side surfaces of the substrate after the first overprinting and the last overprinting drying, when the printing ink does not reach the drying effect, the printing ink dislocation during transmission is easily caused, and when the intaglio printing of an image is performed, the printing ink dislocation effect degree can be obtained through the overprinting length of the protrusion;
s34: and the data analysis module collects the chroma acquisition degree and the ink dislocation effect degree.
The specific content of the data detection of the color contrast module is as follows:
a1: inputting a sample image in a color contrast module in advance, setting the color depth of a sample as a color depth final value '1', setting the primary color of a base material when the base material is not printed as a color depth initial value '0', and carrying out layer-by-layer filtering on the color depth between the initial value and the final value to obtain a plurality of sample depths with different degrees, and obtaining corresponding color depth values to establish a color depth library;
a2: and the color forming comparison module acquires an image of the last drying procedure, compares the image with the depth in the color depth library to obtain a final printing color depth value, defines the color depth acquisition degree as S, and is less than or equal to 0 and less than or equal to 1.
The data detection of the protrusion judgment module comprises the following specific contents:
b1: the total length of the salient points of the input side images in the protrusion judging module when the overprinting does not generate dislocation is recorded as n;
b2: the protrusion judgment module acquires the width d of the side salient point actually acquired during the first overprinting i ；
B3: the protrusion judgment module acquires that the width of the actually acquired side salient point is D when the last overprinting is carried out i ；
B4: the protrusion judging module respectively calculates the dislocation effect degrees after the first overprinting drying and the last overprinting drying according to the obtained data, and records the dislocation effect degrees as Z 1 After the last dryingThe degree of dislocation effect is denoted as Z 2 ；
B5：Z 1 And Z 2 The calculation formula of (a) is as follows:
that is, the smaller the Z value, the lower the dislocation degree, m is the total number of the side overprinting bumps, i is the number of m, Z 1 ≥1，Z 2 And the maximum value of the dislocation effect degree is set to be 1.5, and if the obtained Z value is more than 1.5, the dislocation degree is determined not to be reduced only by temperature adjustment.
The judgment standard of the data judgment module is set as follows:
setting the minimum value of the color depth acquisition degree to be 90 percent, if 0-S-less than 90 percent, directly determining that the affinity between the ink and the substrate is unqualified, if 90 percent to 100 percent, the method can be discussed by combining the dislocation effect degree, and the method can judge how to adjust the preset value at the current stage, so that the printing quality of the finished product is improved;
data judging module is obtaining Z 1 And Z 2 Then, the two values are compared by using a quotient formula, which is marked as k, and
when Z is 1 And Z 2 All of which are less than 1.5, when k is more than or equal to 85% and less than or equal to 100%, the dislocation degree among the printing ink is reduced in the subsequent drying procedure, and when k is more than or equal to 50% and less than or equal to 100%, the dislocation degree among the printing ink is reduced<When the k =50%, it indicates that the last overprinted image and the first overprinted image do not overlap at all and are the minimum value of k.
The affinity and dislocation degree between the substrate and the ink by the mass analysis module in the step S4 are determined as follows:
at 0<S<90 percent, or directly considering that V is under the condition that any dislocation effect degree is more than 1.5 Often times And T Often times Under the condition, the affinity degree between the ink and the substrate is very low, or the drying effect is low, the dislocation degree is serious, the printing quality is low, if the required printing effect can not be achieved only by adjusting the transmission speed and the drying temperature, and the quality is judged to be 0 grade quality;
when S is more than or equal to 90% and less than or equal to 100% and k is more than or equal to 50% and less than 85%, the subsequent drying process has a certain dislocation improvement effect on the drying of the ink, but has a large improvement space, and the affinity degree is qualified, and the ink is judged to be the I-grade quality degree;
and when S is more than or equal to 90% and less than or equal to 100% and k is more than or equal to 85% and less than or equal to 100%, the subsequent drying process has great drying effect on the ink, the caused dislocation degree is low, the affinity degree is qualified, and the grade II quality degree is judged.
The scheme determination content of the operation judgment module is as follows:
when the quality degree is 0 grade, the worker directly adjusts the transmission speed to be the lowest, adjusts the temperature after each overprinting to be the maximum value, then repeats S3-S4 until the quality degree reaches I grade or above, and then carries out the following adjusting procedures;
when the quality degree is I grade, the conveying speed is related to S, S is compared with 100%, the conveying speed is reduced by 5m/min when the difference is 1%, a new conveying speed value is obtained, the drying temperature is increased, the drying temperature is related to k, k is compared with 85%, the drying temperature is increased by 1% when the difference is 1%, and a new drying temperature is obtained;
when the quality degree is II grade, the adjustment mode of the conveying speed is as above, a new conveying speed value is obtained, the drying temperature is related to k, k is compared with 100%, and the drying temperature is increased by 1 ℃ every 5% difference, so that a new drying temperature is obtained;
by adjusting the conveying speed and the drying temperature, the printing quality of the base material is effectively improved.
In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings, and are only for convenience of description of the present invention, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the present invention.
Finally, it should be pointed out that: the above examples are only intended to illustrate the technical solution of the present invention, and not to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: it is to be understood that modifications may be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions may be made in some technical features thereof, without departing from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (9)
1. An intaglio printing method based on ink-flying suppression, comprising a printing detection system, characterized in that: the printing detection system comprises a data presetting module, a detection execution module, a data analysis module and a scheme determination module, wherein the data presetting module and the detection execution module are both electrically connected with the data analysis module, and the data analysis module is electrically connected with the scheme determination module;
the data presetting module comprises a preliminary setting module and a starting module, the detection execution module comprises a color comparison module and a protrusion judgment module, the data analysis module comprises a data judgment module and a quality analysis module, and the scheme determination module comprises an operation judgment module and an adjustment module.
2. The intaglio printing method based on ink-flying suppression according to claim 1, characterized in that: the data presetting module is used for carrying out normal setting of the transmission speed and the drying temperature and starting a detection process, the detection executing module is used for detecting the final color depth and the dislocation condition of an image and transmitting the detection data to the data analyzing module, the analyzing module is used for judging the affinity degree and the dislocation condition between the ink and the base material to be printed and carrying out quality grade classification, and the scheme determining module is used for carrying out preset data adjustment according to the classification result so as to improve the quality of finished products in formal printing.
3. The intaglio printing method based on ink-flying suppression according to claim 2, characterized in that: the operation method of the printing detection system comprises the following steps:
s1: firstly, a worker performs a prepress preparation process, prepares a substrate to be printed, ink, a doctor blade, a guide roller, a compression roller and a printing roller according to the requirements of a construction order, adjusts the position distance and adjusts a power system and an electrical system;
s2: the plate feeding is carried out, the plate surface is protected from being touched, meanwhile, the plate cylinder is fastened on the printing machine, the loosening of the plate cylinder during formal printing is prevented, after the operation device is prepared, the plate is carefully calibrated, the gauge is adjusted, and the pressure is corrected;
s3: the working personnel inputs a normal state transmission speed value and a normal state drying temperature value in the preliminary setting module, a fixed length of initial printing of the base material to be printed is set as a test run detection area, the detection execution module carries out related data detection on overprinting conditions between the ink and the base material in the test run part, and the detection result is transmitted to the data analysis module;
s4: the data analysis module judges and analyzes the detected data to obtain affinity data and dislocation data, the scheme determination module formulates new operation data according to the obtained data, the adjustment module adjusts printing data according to preset data, and after the processing data is adjusted, the printing procedure is formally started;
s5: the test run detection zone is labeled for excision.
4. The intaglio printing method based on flying ink inhibition according to claim 3, characterized in that: the specific steps of S3 are as follows:
s31: obtaining a normal transmission velocity value V according to the ink characteristics and the substrate characteristics Often times And a normal dry temperature value T Often times Setting the length of the detection area according to the size of the printed image;
s32: when test run detection is carried out, the base material is brushed for four times, drying is carried out after each brushing, the color contrast module acquires the final color image on the base material, and color depth contrast is carried out with the color of the sample to obtain the color depth acquisition degree;
s33: the protrusion judging module performs bump scanning on the side surfaces of the substrate after the first overprinting and the last overprinting drying, when the printing ink does not reach the drying effect, the printing ink dislocation during transmission is easily caused, and when the intaglio printing of an image is performed, the printing ink dislocation effect degree can be obtained through the overprinting length of the protrusion;
s34: and the data analysis module collects the chroma acquisition degree and the ink dislocation effect degree.
5. The intaglio printing method based on ink-flying suppression according to claim 4, characterized in that: the specific content of the data detection of the color-forming contrast module is as follows:
a1: inputting a sample image in a color contrast module in advance, setting the color depth of a sample as a color depth final value '1', setting the primary color of a base material when the base material is not printed as a color depth initial value '0', and carrying out layer-by-layer filtering on the color depth between the initial value and the final value to obtain a plurality of sample depths with different degrees, and obtaining corresponding color depth values to establish a color depth library;
a2: and the color forming comparison module acquires an image which finishes the last drying procedure, compares the image with the depth in the color depth library to obtain a final printing color depth value, is defined as the color depth acquisition degree and is marked as S, and S is more than 0 and less than or equal to 1.
6. The intaglio printing method based on ink-flying suppression according to claim 5, characterized in that: the data detection of the protrusion judgment module comprises the following specific contents:
b1: the total length of the salient points of the input side images in the protrusion judging module when the overprinting does not generate dislocation is marked as n;
b2: the protrusion judgment module obtains the width d of the actually collected side salient point during the first overprinting i ；
B3: the protrusion judgment module acquires the width D of the actually acquired side salient point during the last overprinting i ；
B4: the protrusion judging module respectively calculates the dislocation effect degrees after the first overprinting drying and the last overprinting drying according to the obtained data, and records the dislocation effect degrees as Z 1 And the dislocation effect degree after the last drying is recorded as Z 2 ；
B5: z is 1 And Z 2 The calculation formula of (a) is as follows:
that is, the smaller the Z value, the lower the dislocation degree, m is the total number of the side overprinting bumps, i is the number of m, Z 1 ≥1，Z 2 And the maximum value of the dislocation effect degree is set to be 1.5, and if the obtained Z value is more than 1.5, the dislocation degree is determined not to be reduced only by temperature adjustment.
7. The intaglio printing method based on ink-flying suppression according to claim 6, characterized in that: the judgment standard of the data judgment module is set as follows:
setting the minimum value of the color depth acquisition degree to be 90%, if S is more than 0 and less than 90%, directly determining that the affinity between the ink and the base material is unqualified, if S is more than or equal to 90% and less than or equal to 100%, discussing by combining with the dislocation effect degree, judging how to adjust the preset value at the present stage, and further improving the printing quality of the finished product;
data judging module is obtaining Z 1 And Z 2 Then, the two values are compared by using a quotient formula, which is marked as k, and
when Z is 1 And Z 2 All the conditions are lower than 1.5, when k is more than or equal to 85% and less than or equal to 100%, the dislocation degree among the inks is reduced in the subsequent drying process, when k is more than or equal to 50% and less than 85%, the subsequent drying does not improve the drying effect of the inks, further the dislocation is caused to a larger extent, and when k =50%, the last overprinted image and the first overprinted image are completely not overlapped and are the minimum value of k.
8. The intaglio printing method based on ink-flying suppression according to claim 7, characterized in that: the affinity degree and dislocation degree of the mass analysis module in the step S4 for the substrate and the ink are judged as follows:
when S is more than 0 and less than 90 percent or any dislocation effect degree is more than 1.5, V is directly identified Often times And T Often times Under the condition, the affinity degree between the ink and the substrate is very low, or the drying effect is low, the dislocation degree is serious, the printing quality is low, if the required printing effect can not be achieved only by adjusting the transmission speed and the drying temperature, and the quality is judged to be 0 grade quality;
when S is more than or equal to 90% and less than or equal to 100% and k is more than or equal to 50% and less than 85%, the subsequent drying process has a certain dislocation improvement effect on the drying of the ink, but has a large improvement space, and the affinity degree is qualified, and the ink is judged to be the I-grade quality degree;
and when S is more than or equal to 90% and less than or equal to 100% and k is more than or equal to 85% and less than or equal to 100%, the subsequent drying process has great drying effect on the ink, the caused dislocation degree is low, the affinity degree is qualified, and the grade II quality degree is judged.
9. The intaglio printing method based on ink-flying suppression according to claim 8, characterized in that: the scheme determination content of the operation judgment module is as follows:
when the quality degree is 0 grade, directly adjusting the transmission speed to be the lowest by a worker, adjusting the temperature after each overprinting to be the maximum, repeating S3-S4 until the quality degree is I grade or above, and then performing the following adjusting procedures;
when the quality degree is I grade, the conveying speed is related to S, S is compared with 100%, the conveying speed is reduced by 5m/min when the difference is 1%, a new conveying speed value is obtained, the drying temperature is increased, the drying temperature is related to k, k is compared with 85%, the drying temperature is increased by 1% when the difference is 1%, and a new drying temperature is obtained;
when the quality degree is II grade, the adjustment mode of the conveying speed is as above, a new conveying speed value is obtained, the drying temperature is related to k, k is compared with 100%, and the drying temperature is increased by 1 ℃ every 5% difference, so that a new drying temperature is obtained;
by adjusting the conveying speed and the drying temperature, the printing quality of the base material is effectively improved.
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| CN117183578A (en) * | 2023-11-03 | 2023-12-08 | 博感科技(江苏)有限公司 | Positioning detection method and printing method for telescopic printing substrate |
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