CN113500849B - Resin plate printing application process - Google Patents
Resin plate printing application process Download PDFInfo
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- CN113500849B CN113500849B CN202110669100.3A CN202110669100A CN113500849B CN 113500849 B CN113500849 B CN 113500849B CN 202110669100 A CN202110669100 A CN 202110669100A CN 113500849 B CN113500849 B CN 113500849B
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- printing
- resin plate
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- engraving
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41C—PROCESSES FOR THE MANUFACTURE OR REPRODUCTION OF PRINTING SURFACES
- B41C1/00—Forme preparation
- B41C1/02—Engraving; Heads therefor
- B41C1/04—Engraving; Heads therefor using heads controlled by an electric information signal
- B41C1/05—Heat-generating engraving heads, e.g. laser beam, electron beam
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Plasma & Fusion (AREA)
- Manufacturing & Machinery (AREA)
- Manufacture Or Reproduction Of Printing Formes (AREA)
Abstract
The invention discloses a resin plate printing application process, which comprises the following steps: 1. adopting a resin plate with the thickness of 1.14mm and the hardness of 69 HA-75 HA; 2. carrying out laser engraving on the resin plate, and increasing the time delay engraving time, wherein the time delay engraving time is 1.4-2.5 times of the original engraving time; 3. carrying out batch printing test on the resin plate, and inspecting the resin plate when the scrapped printing plate is produced by printing; 4. obtaining the printing effect and the dot expansion amount from the third test, correspondingly adjusting the time delay engraving time and setting the dot compensation amount, wherein the dot compensation amount is-10% -12%; 5. and repeating the first step to the fourth step according to the adjusted delay engraving time and the adjusted dot compensation amount until the printing effect and the dot expansion amount obtained in the third step meet the requirements, thereby obtaining the resin plate capable of replacing the rubber plate. By the resin plate printing application process, the printing speed can be improved under the condition of ensuring the printing quality and the printing quantity of the plate material to be similar to those of a rubber plate by the resin plate with short purchase period and low purchase cost.
Description
Technical Field
The invention relates to the technical field of resin plate printing, in particular to a resin plate printing application process.
Background
At present, the application of flexographic printing in the packaging, printing and selling markets is more and more common, wherein two types of commonly used printing plates are rubber plates and resin plates, the rubber printing plates at the present stage have remarkable new technical advantages and energy-saving and environment-friendly advantages in the application field of seamless sleeve plates, for example, the production change is simple, preparation work in advance is not needed, the printing plate has high printing resistance, and a product of about 150 tons can be produced under normal conditions generally, but the working efficiency of the rubber printing plate cannot be satisfied by customers all the time, a lot of time is consumed in the plate making process, so the procurement cost of the rubber plate is high, the procurement period is long, if a printing party encounters sudden plate damage in production, the printing production can be continued only by preparing the plate in advance, so the inventory cost is increased, otherwise, a new plate cannot be obtained rapidly to continue printing production under normal conditions, the procurement cost of the resin plate is lower than that of the rubber plate, the period is shorter, but the printing quantity is relatively less, the printing speed and the printing effect are difficult to replace the rubber plate to be printed.
Disclosure of Invention
The purpose of the invention is: a resin plate printing application process using a resin plate to obtain a printing effect close to that of a rubber plate, thereby replacing the rubber plate is provided.
In order to solve the technical problem, the invention provides a resin plate printing application process.
A process for flexographic printing applications comprising the steps of: 1. adopting a resin plate with the thickness of 1.14mm and the hardness of 69 HA-75 HA; 2. carrying out laser engraving on the resin plate, and increasing the time delay engraving time, wherein the time delay engraving time is 1.4-2.5 times of the original engraving time; 3. carrying out batch printing test on the resin plate, and inspecting the resin plate when the scrapped printing plate is produced by printing; 4. obtaining the printing effect and the dot expansion amount from the third test, correspondingly adjusting the time delay engraving time and setting the dot compensation amount, wherein the dot compensation amount is-10% -12%; 5. and repeating the first step to the fourth step according to the adjusted delay engraving time and the adjusted dot compensation amount until the printing effect and the dot expansion amount obtained in the third step meet the requirements, thereby obtaining the resin plate capable of replacing the rubber plate.
In the second step, after the resin plate is exposed on the back side, the laser engraving is performed for a delay of the engraving time, and then the front side exposure is performed.
In the second step, the resin plate is first laser engraved for a prolonged engraving time, and then the resin plate is subjected to back exposure and front exposure.
As a preferable scheme of the present invention, in the second step, the engraving angle is controlled to form dot dislocation.
In a preferred embodiment of the present invention, in the third step, a four-primary-color printing test is performed to check the four-color printing effect of the resin plate, and the amount of dot dislocation formed in the second step is adjusted in the fifth step according to the four-color printing effect.
In the fifth step, as a preferable scheme of the invention, production indexes are recorded, and a data model for changing the rubber plate material into the resin plate material is established.
Compared with the prior art, the resin plate printing application process has the beneficial effects that: because the purchase cost and the period of the resin plate are both lower and shorter than those of the rubber plate, the resin plate is easier to prepare plate stock at low cost in printing production, a new plate can be obtained in a shorter time to cope with emergency situations, and meanwhile, the resin plate with low thickness and high hardness is utilized to obtain better printing resistance and pressure resistance, so that the running speed of the applied resin plate in printing is improved, the printing effect is improved after laser engraving and delayed engraving time is increased, the printing resistance of the resin plate in high-speed running can be improved through dot compensation, the printing quantity of the resin plate is also improved to about 90-120 tons, the higher similarity of samples printed by using different plate materials is ensured, and the applied resin plate can well replace the rubber plate for printing production.
Detailed Description
The following examples are given to further illustrate the embodiments of the present invention. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
The resin plate printing application process comprises the following steps: 1. the resin plate with the thickness of 1.14mm and the hardness of 69 HA-75 HA is adopted, the resin plate with the low thickness and the high hardness is selected within the thickness range and the hardness range commonly used by the existing resin plate, the thickness of the resin plate provided by suppliers on the market is 1.00 mm-3.00 mm, the hardness is 60 HA-80 HA, the resin plate with the thickness of 1.14mm and the hardness of 69 HA-75 HA is selected to have better printing resistance and pressure resistance, and the mesh points are prevented from being easily deformed; 2. the method comprises the steps of carrying out laser engraving on a resin plate in on-site screen addition, increasing the time delay engraving time of the resin plate, wherein the time delay engraving time is 1.4-2.5 times of the original engraving time, outputting higher energy laser to each pixel dot while realizing high resolution dot through laser engraving, and improving the quality of the pixel dot, so that the resin plate is closer to the printing effect of a rubber plate, the probability of generating printing white spots can be reduced, the problem of the quality and appearance of a dirty plate or other printed plates which cannot be thoroughly solved by a rubber sleeve is solved, the printing quality during high-speed operation of more than 600m/min is mainly ensured, and the poor printing quality is caused by the overlarge time delay engraving time; 3. carrying out batch printing test on the resin plate, and inspecting the resin plate when the scrapped printing plate is produced by printing; 4. obtaining the printing effect and the dot expansion amount from the third test, correspondingly adjusting the time delay engraving time and setting the dot compensation amount, wherein the dot compensation amount is-10% -12%; 5. repeating the first step to the fourth step according to the adjusted delay engraving time and the adjusted dot compensation amount until the printing effect and the dot expansion amount obtained in the third step meet the requirements, and obtaining a resin plate capable of replacing a rubber plate; when the dot compensation is carried out, opposite dot compensation amounts are input according to the dot expansion amounts, the printing resistance of the resin plate is further improved during printing work, for example, when the dot of a new plate is expanded by 9%, the dot compensation is correspondingly carried out by minus 9%, and the printing plate is scrapped along with the printing process until the dot expansion reaches a compensation value, so that the dot difference after printing caused by the fact that the resin plate is not resistant to printing due to high-speed operation is effectively avoided, and the printing quality can be better improved by matching with other methods for controlling the dot expansion; because the purchase cost and the period of the resin plate are both lower and shorter than those of the rubber plate, the resin plate is easier to prepare plate stock at low cost in printing production, a new plate can be obtained in a shorter time to cope with emergency situations, and meanwhile, the resin plate with low thickness and high hardness is utilized to obtain better printing resistance and pressure resistance, so that the running speed of the applied resin plate in printing is improved, the printing effect is improved after laser engraving and delayed engraving time is increased, the printing resistance of the resin plate in high-speed running can be improved through dot compensation, the printing quantity of the resin plate is also improved to about 90-120 tons, the higher similarity of samples printed by using different plate materials is ensured, and the applied resin plate can well replace the rubber plate for printing production.
In the second step, after the back surface of the resin plate is exposed, the laser engraving is performed with a delay of the engraving time, and then the front surface exposure is performed, that is, the back surface of the resin plate is cured first, and then the laser engraving is performed with a delay of the engraving time, so that the front surface of the resin plate forms finer pixel dots, and then the front surface is exposed and cured to form a stable dot structure.
In the second step, the resin plate is first subjected to laser engraving and delayed engraving time, and then subjected to back exposure and front exposure, that is, the front of the resin plate is delayed engraved to form finer pixel dots, and then the back and the front of the resin plate are respectively cured to form stable dot structures.
In the second step, the engraving angle is controlled to form dot dislocation, when multicolor printing is performed, dot positions of two or more colors are mainly overlapped, and by means of dot dislocation, the phenomenon that dots among different colors are overlapped to generate moire patterns during printing can be avoided, so that the effect of printing the overlapped color part is better.
Illustratively, in the third step, a four-primary-color printing test is performed, the four-color printing effect of the resin plate is checked, and the dislocation amount of the dots formed in the second step is adjusted in the fifth step according to the four-color printing effect, so that the printing quality is improved.
Illustratively, in the fifth step, production indexes are recorded, a data model for changing the rubber plate material into the resin plate material is established, the production indexes include dot expansion, printing quality, printing plate printing quantity, production speed and the like, along with the accumulation of data and the establishment of the data model, the resin plate can be flexibly used for replacing the rubber plate material at any time in the printing production process under the conditions of subsequent different printing batches or orders in the actual trial production activities of enterprises, samples printed by different plate materials have high similarity, and the printing speed of the resin plate is improved under the condition of ensuring the printing quality and the printing plate material printing quantity.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.
Claims (4)
1. A process for the application of a resin plate, characterized in that it comprises the steps of:
step one, adopting a resin plate with the thickness of 1.14mm and the hardness of 69HA to 75HA;
step two, carrying out laser engraving on the resin plate, and increasing the time delay engraving time which is 1.4 to 2.5 times of the original engraving time, and controlling the engraving angle to form lattice point dislocation;
step three, carrying out batch printing test on the resin plate, and checking the resin plate when the scrapped printing plate is produced by printing;
step four, obtaining the printing effect and the dot expansion amount from the test in the step three, correspondingly adjusting the time delay engraving time and setting the dot compensation amount, wherein the dot compensation amount is-10% -12%;
and fifthly, repeating the first step to the fourth step according to the adjusted delay engraving time and the adjusted dot compensation amount until the printing effect and the dot expansion amount obtained in the third step meet the requirements, so as to obtain a resin plate capable of replacing a rubber plate, recording production indexes, and establishing a data model for changing the rubber plate to the resin plate, wherein the production indexes comprise dot expansion, printing quality, printing amount of a printing plate and production speed.
2. A process for the application of flexographic printing according to claim 1, characterized in that: in the second step, laser engraving is carried out after the resin plate is subjected to back exposure, the engraving time is delayed, and then front exposure is carried out.
3. A process for the application of flexographic printing according to claim 1, characterized in that: and in the second step, the resin plate is firstly subjected to laser engraving and the engraving time is delayed, and then the resin plate is subjected to back exposure and front exposure.
4. A process for the application of flexographic printing according to claim 1, characterized in that: and in the third step, performing a four-primary-color printing test, checking the four-color printing effect of the resin plate, and adjusting the dislocation quantity of the dots formed in the second step in the fifth step according to the four-color printing effect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110669100.3A CN113500849B (en) | 2021-06-16 | 2021-06-16 | Resin plate printing application process |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110669100.3A CN113500849B (en) | 2021-06-16 | 2021-06-16 | Resin plate printing application process |
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| CN113500849A CN113500849A (en) | 2021-10-15 |
| CN113500849B true CN113500849B (en) | 2023-01-17 |
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| CN202110669100.3A Active CN113500849B (en) | 2021-06-16 | 2021-06-16 | Resin plate printing application process |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2893752Y (en) * | 2006-03-30 | 2007-04-25 | 王晓军 | Photosensitive resin flexible printing plate roll |
| JP2008229875A (en) * | 2007-03-16 | 2008-10-02 | Tokyo Ohka Kogyo Co Ltd | Flexographic printing original plate and manufacturing method of flexographic printing plate |
| CN101559662A (en) * | 2009-05-21 | 2009-10-21 | 上海希尔彩印制版有限公司 | Manufacturing method and product for nickel screen die roll for fabric printing |
| CN206086038U (en) * | 2016-08-04 | 2017-04-12 | 云南侨通包装印刷有限公司 | Offset printing coating resin version of gao zaimo volume |
| CN107796773A (en) * | 2017-11-30 | 2018-03-13 | 上海紫江彩印包装有限公司 | A kind of control method of intaglio printing spot color half tone image quality |
| CN109016795A (en) * | 2018-07-18 | 2018-12-18 | 常州天寅智造科技股份有限公司 | A kind of rubber roller engraving process and printing process and device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5908427B2 (en) * | 2013-03-29 | 2016-04-26 | 富士フイルム株式会社 | Plate making method, plate making apparatus and printing apparatus |
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2021
- 2021-06-16 CN CN202110669100.3A patent/CN113500849B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2893752Y (en) * | 2006-03-30 | 2007-04-25 | 王晓军 | Photosensitive resin flexible printing plate roll |
| JP2008229875A (en) * | 2007-03-16 | 2008-10-02 | Tokyo Ohka Kogyo Co Ltd | Flexographic printing original plate and manufacturing method of flexographic printing plate |
| CN101559662A (en) * | 2009-05-21 | 2009-10-21 | 上海希尔彩印制版有限公司 | Manufacturing method and product for nickel screen die roll for fabric printing |
| CN206086038U (en) * | 2016-08-04 | 2017-04-12 | 云南侨通包装印刷有限公司 | Offset printing coating resin version of gao zaimo volume |
| CN107796773A (en) * | 2017-11-30 | 2018-03-13 | 上海紫江彩印包装有限公司 | A kind of control method of intaglio printing spot color half tone image quality |
| CN109016795A (en) * | 2018-07-18 | 2018-12-18 | 常州天寅智造科技股份有限公司 | A kind of rubber roller engraving process and printing process and device |
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| CN113500849A (en) | 2021-10-15 |
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