CN106032087A - Flexographic plate wiring printing machine and printing method thereof - Google Patents
Flexographic plate wiring printing machine and printing method thereof Download PDFInfo
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- CN106032087A CN106032087A CN201510116855.5A CN201510116855A CN106032087A CN 106032087 A CN106032087 A CN 106032087A CN 201510116855 A CN201510116855 A CN 201510116855A CN 106032087 A CN106032087 A CN 106032087A
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Abstract
The invention provides a flexographic plate wiring printing machine and a printing method thereof. The printing machine comprises a paper feeding mechanism, a paper collecting mechanism, a drying mechanism, a flexographic plate cylinder, and an impression cylinder used for flexographic plate printing, and also comprises a one-plate-multi-color flexographic plate ink feeding system with a color collecting cylinder. The color collecting cylinder is used to collect printing ink in different colors in more than two single-color color-mode cylinders, and then transmit the printing ink to the flexographic plate cylinder, so that at least one line in a pattern on the flexographic plate cylinder is covered by flexographic plate printing ink in two or more different colors. The impression cylinder can be operated cooperatively with the flexographic plate cylinder, so as to complete a flexographic plate wiring printing process.
Description
Technical Field
The invention belongs to the technical field of printing, and particularly relates to a flexible plate wiring printing machine and a printing method thereof.
Background
In the field of printing technology, there are engraved intaglio wiring printing apparatus and printing method, offset wiring printing apparatus and printing method, relief wiring printing apparatus and printing method, screen (stencil) wiring printing apparatus and printing method, (gravure) wiring printing apparatus and printing method, and the like.
For example, chinese patent application No. CN201310521745 discloses a single-sided and double-sided dual-purpose wiring offset printing machine, which comprises a paper control mechanism, a blanket cylinder, a plate cylinder, an impression/transfer cylinder and an ink supply system, wherein the blanket cylinder and the plate cylinder are respectively provided with a printing blanket and a printing plate which are correspondingly pressed, the printing blanket is of a single-blanket two-unit structure, the printing plate is of a single-plate two-unit structure, the impression/transfer cylinder and the printing blanket of the blanket cylinder are correspondingly pressed, and the ink supply system is used for supplying ink to the plate cylinder. When the offset single-sided printing and the offset double-sided simultaneous printing are carried out, a single-sheet continuous paper feeding mode is adopted, the equipment does not need to be adjusted, when the double-sided printing function is applied, front and back graphics are manufactured on the same printing plate, the factors influencing the printing precision in the engineering large-scale production can be reduced to the minimum, the front and back printing error is less than 0.1mm, the light transmission and color change are ensured, and the high-grade printing anti-counterfeiting technologies such as digital watermarking, double-sided wiring, front and back wiring and the like can stably operate in the large-scale production.
Chinese patent application CN200910243297 discloses a method and apparatus for printing by double-sided printing of engraved intaglio plates. More than one printing plate with the same number is respectively arranged on the two printing plate cylinders, wherein the first printing plate cylinder is provided with a first printing plate, and the second printing plate cylinder is provided with a second printing plate; even number of transfer/impression cushions which are twice as many as the number of printing plates arranged on the first or second printing plate cylinder are arranged on the transfer/impression cylinder; the printing material is continuously conveyed to the space between the transfer printing/impression cylinder and one of the plate cylinders for printing. In the rotating process, the first plate cylinder is continuously pressed with the transfer printing/impression cylinder correspondingly, so that when the transfer printing/impression cylinder is pressed with the second plate cylinder correspondingly, patterns of a transferred printing plate are always arranged on each transfer printing/impression plate, and the patterns on the front side and the back side can be simultaneously transferred to the front side and the back side of a printing stock through one-time printing, thereby realizing continuous and uninterrupted double-sided printing, and improving the production efficiency by 100 percent compared with the double-sided printing of the same type of engraved plate.
Chinese patent application CN201010501945 discloses a multicolor wiring screen printing process and equipment, and relates to the technical field of single-sheet rotary screen printing. Transferring ink to relief plates on four color mold cylinders by utilizing a satellite-type layout four-color-group ink supply unit; different colors are converged on a color collecting blanket of a double-diameter color collecting impression cylinder by different color mold relief plates in different areas; the printing paper money is transferred to a wiring cylinder printing plate in a silk screen cylinder through a large neutral position by combining a special wiring process of the printing paper money to form an accurate ink pattern; finally, rolling the paper by a silk screen plate to form a multicolor wiring pattern. The wiring screen printing process of anti-counterfeiting ink with different colors such as OVI and OVMI can be realized, and the jigsaw wiring screen printing process and the color-sandwich screen printing process of common ink, OVI, OVMI, colorless fluorescent ink and the like can also be realized; high printing yield, accurate wiring, and convenient operation of cleaning, replacing and tightening the silk screen plate.
Chinese patent application CN200910242289 discloses a banknote printing apparatus, which comprises a paper feeding part, a printing part, a post-printing processing part and a paper discharging part, wherein the printing part comprises a relief printing unit, a color-collecting number printing unit and a missing printing unit, the post-printing processing part comprises a magnetic orientation unit, an inkless embossing unit and a double-sided coating unit, and each printing unit of the printing part is arranged around a central impression cylinder at intervals. The money printing equipment of the invention integrates relief printing, porous printing, horizontal printing, vertical printing, magnetization, embossing, coating and light energy drying, namely eight technological processes can be arranged in one machine, the volume of the machine can be not more than one intaglio printing machine, meanwhile, a plurality of sets of paper inlet and outlet components are omitted in the structure, the manufacturing cost is further reduced, compared with single machine production, the occupied area is small, and the production process is short.
Chinese patent application CN200910084800 discloses a printed matter with color-collecting number and its printing method and printing equipment. The said color collecting number is formed by color collecting or color overlapping line printing of more than two different ink colors on the font, and the printing method is that the ink supply system with more than two different colors simultaneously and compositely cross transfers more than two different color inks to the font of a numbering machine for color collecting or color overlapping line printing. The characters of the number are in multiple colors, the colors are unique and beautiful, and the number has an anti-counterfeiting function and is suitable for printing anti-counterfeiting numbers on bills, securities and bank notes.
Chinese patent application CN200910084800 discloses a printing method of gravure to printing perspective superimposed color latent image, comprising the following steps: (1) decomposing a perspective color-superposed latent image pattern, and respectively placing the pattern in the front surface gravure pattern and the back surface gravure pattern; (2) and precisely printing the gravure pattern to ensure that the decomposed perspective superimposed color latent image pattern information is printed on the front surface and the back surface of the anti-counterfeiting paper in a complementary mode. Because the perspective color-superposed latent image pattern is decomposed and is respectively arranged in the front and back gravure patterns, the patterns on the two sides can not be seen because the information is incomplete when any one side is observed independently. And when the backlight perspective is carried out, the superimposed color latent image pattern can be seen. The method for printing the gravure printing color-superposition latent image adds a layer of one-line fake-imitating measure on the basis of the original gravure printing latent image, miniature characters, laces and interference patterns, thereby more effectively preventing the counterfeiters from counterfeiting the gravure anti-counterfeiting paper.
Chinese patent application CN200410050147 discloses a dislocation ink transfer number wiring printing device, including number printing unit, number printing unit includes number cylinder, impression cylinder and two sets of inking systems, and every set of inking system comprises ink supply unit, color mold roller, ink transfer roller, and the diameter of ink transfer roller is the integral multiple of color mold roller diameter, and the ink transfer roller in two sets of inking systems is number cylinder ink transfer, and the diameter ratio of ink transfer roller and number cylinder is J: P, and J, P is the integer and can not divide each other. After the diameter of the number cylinder and the diameter of the ink transfer roller are made into a non-integral multiple relation, in the working engineering, the number cylinder rotates J circles and the ink transfer roller rotates P circles to complete an ink transfer cycle, so that in each ink transfer period, the same color area of each number on the number cylinder is transferred J times by J ink storage areas on the corresponding ink transfer roller, and therefore each number can be fully supplied with ink, the defect of insufficient ink in the prior art is overcome, and the printing quality of the number of the securities is guaranteed.
Chinese patent application CN03134340 discloses a one-step printing process of single-code two-color wiring and fluorescent markers. The process comprises 1) setting the displacement of a marking machine of an inking device to be adjustable within 0-12 mm, and adjusting the displacement of a printing roller; 2) determining the number wiring and the printing position of the fluorescent marker, dividing the ink fountain by using a color separation sheet, performing joint cutting repair and cutting on a lower ink distributing roller, an ink transfer roller, an ink distributing roller and a forme roller, and outputting three kinds of ink with different ink colors and ink properties in the same ink fountain; 3) under the surface 5mm of the fluorescent ring, a groove which can enable the outer wall of the numbering machine to move up and down in the groove is milled. The technical problem that the number and the fluorescent marker need to be printed twice and the number printing only adopts the same ink color is solved. The method not only reduces the storehouse occupation, the fund occupation and the resource waste, but also greatly enhances the anti-counterfeiting performance and the machine-readable performance of the printed product, shortens the process period and reduces the production cost.
Chinese patent application CN02123770 discloses an engraved intaglio printing technique, specifically an intaglio printing apparatus, method and printed product thereof. The printing stock is alternately input into a printing plate cylinder and a transfer printing/impression cylinder which are provided with printing plates with the number ratio of even to odd ratio, and the double-sided printing is finished at one time through rolling impression, and the printing product has uneven hand feeling on at least one side. The defects of the known technology are overcome, the simultaneous printing of both sides of the engraved intaglio plate can be realized, intaglio characters and patterns in the intaglio plate printing can be subjected to mirror-direction turning and normal identification, the mirror-direction intaglio plate counterprinting of the patterns on both sides of the printing stock is realized, the precision is far higher than the offset printing counterprinting precision, the anti-counterfeiting capacity of the printing stock is improved, the printing process flow and the printing period can be shortened, the printing cost is reduced, and the labor productivity is improved.
Chinese patent application CN201410355802.4 discloses a gravure wiring printing press (1) and a printing method thereof, wherein the printing press (1) comprises a paper feeding mechanism (2) and a paper receiving mechanism (3) for gravure printing, a plate cylinder (4) and an impression cylinder (5) for gravure printing, and further comprises a multi-color gravure ink transfer system with a color collecting cylinder (6). The color collecting cylinder (6) is used for collecting and transferring the ink with different colors from more than two single-color cylinders (7a, 7b, 7c) to the plate cylinder (4), so that at least one line in the pattern on the plate cylinder is filled with the gravure ink with two or more different colors. The printing press also includes a wiping system for scraping or wiping off excess ink from the non-image portions. The impression cylinder (5) can operate in cooperation with a plate cylinder (4) from which excess ink is scraped or wiped off to complete the gravure wiring printing process.
There are also many wiring printing devices and printing processes, not to mention them. The wiring printing equipment and the printing method thereof are widely used for banknote printing of various countries, and the Windou gravure wiring printing machine and the printing method thereof are not used for banknote printing in the near future.
The flexographic printing technology is one of the main printing modes at present, and is mainly used for label printing, food packaging printing, corrugated carton printing, publication printing and the like. Prior to the present invention, flexographic printing techniques were not considered security printing techniques.
Flexographic printing machines are available in many types, and mainly include three types, i.e., a double-bed type, a central roll type, and an arrangement type. Although the flexographic printing machines have multiple models and have larger difference in machine structure, the printing principles are very similar, and the flexographic printing machines are provided with an anilox roller, and are printed on a printing stock in a light pressing mode by matching with a flexographic printing plate in a simple ink transmission mode. In order to enable the anti-counterfeiting printing industry to have more printing technical options, on the basis of the invention, the flexible plate wiring printer and the printing method provide a new technical option for anti-counterfeiting printing.
Disclosure of Invention
The invention aims to: a flexographic wiring printer and a printing method thereof are provided.
The technical scheme of the flexographic plate wiring printer and the printing method thereof is realized by the following measures:
the invention relates to a flexographic plate wiring printing machine, which comprises a paper feeding mechanism and a paper receiving mechanism for flexographic plate printing, a drying mechanism, a flexographic plate cylinder and an impression cylinder, and is characterized by also comprising a one-plate multi-color flexographic plate ink transfer system with a color collecting cylinder; more than two monochromatic color mold cylinders are arranged around the color collecting cylinder, the monochromatic color mold cylinders are used for respectively transferring the printing inks with different colors to the color collecting cylinder, the color collecting cylinder is used for collecting the printing inks with different colors and simultaneously transferring the collected printing inks to the flexible printing plate cylinder, so that at least one line in the pattern on the flexible printing plate cylinder is covered by the flexographic printing inks with two or more different colors, wherein the at least one line is a pattern formed by points and lines or a pattern formed by points or a pattern or characters formed by lines; the impression cylinder is operable in cooperation with the flexographic plate cylinder to complete a flexographic wire printing process. Wherein,
the present invention also provides a printing method for execution in the aforementioned flexographic printing press, comprising the steps of:
operating the monochrome color mold cylinder to transfer different colors of ink to the color collection cylinder, respectively;
operating the color-collecting cylinder to collect the inks of different colors and simultaneously transfer the inks to the flexible plate cylinder;
covering at least one line in the pattern on the flexible printing plate cylinder with flexographic printing ink of two or more different colors;
the flexographic plate cylinder is operated in cooperation with the impression cylinder to complete the flexographic wire printing process.
Preferably, the printing method further comprises the step of coordinating the systems or mechanisms described above to obtain a print that meets the anti-counterfeiting requirements.
Drawings
FIG. 1 is a schematic view of one embodiment of a flexographic wiring printer according to the present invention.
Detailed Description
Fig. 1 schematically illustrates one embodiment of a flexographic printing press according to the present invention, generally designated by reference numeral 1. As shown in fig. 1, the flexographic wiring printing press 1 includes a paper feed mechanism 9 and a paper delivery mechanism 10 for flexographic printing, a drying mechanism 11, and a flexographic plate cylinder 3 and an impression cylinder 2. The paper feeding mechanism 9, paper delivery mechanism 10, drying mechanism 11, flexographic plate cylinder 3 and impression cylinder 2 may be known commercially available components. In addition, in the present embodiment, the flexographic wiring printing press 1 further includes a one-plate multi-color flexographic ink delivery system with a color-collecting cylinder 4. More than two monochromatic color model cylinders 5a, 5b, 5c and 5d are arranged around the color collecting cylinder 4, flexographic printing ink is transferred to anilox rollers 6a, 6b, 6c and 6d from ink tanks 7a, 7b, 7c and 7d and then transferred to the monochromatic color model cylinders 5a to 5d through an anilox roller scraper, and the monochromatic color model cylinders 5a, 5b, 5c and 5d respectively transfer the printing ink with different colors to the color collecting cylinder 4. The color collecting cylinder 4 collects the ink with different colors and simultaneously transmits the ink to the flexible printing plate cylinder 3, so that at least one line (the line is a pattern formed by points and lines or a pattern formed by points or a pattern or characters formed by lines) in the pattern on the flexible printing plate cylinder 3 is covered by the ink of the flexible printing plate with two or more different colors; the flexographic plate wire printing process is completed by the cooperation of the flexographic plate cylinder 3 and the impression cylinder 2. The printed matter is collected for later use after passing through a drying system 11 (hot air drying or ultraviolet ray drying). See figure 1 for details.
Fig. 1 schematically shows an embodiment of a flexographic printing machine according to the present invention, which can be combined with a commercially available intaglio printing machine (a general intaglio printing machine or an engraved intaglio printing machine) and/or a flexographic printing machine and/or an offset printing machine and/or a numbering machine and/or a form printing machine and/or a screen printing machine to form a printing line, and these printing units share a paper feeding mechanism, a paper receiving mechanism, a computer overprinting system, etc. to improve overprinting precision and labor productivity of printed matters; the house is saved; the cost is reduced; reduce the pollution of printing to the environment.
The paper feeding mechanism 9 is a known paper feeding system in the flexographic printing process, and feeds a substrate to be printed (paper, cardboard, corrugated paper, plastic film, various synthetic fibers with a fiber diameter of more than 35 μm, a metal plate with a thickness of less than 1mm, a metal wire with a diameter of less than 1mm, or other printed substrate that can be printed by the flexographic printing machine) into the printing machine to perform printing operation. The substrate to be printed here is paper or cardboard or corrugated paper or plastic film or various synthetic fibers with a fiber diameter of more than 35 microns or metal sheet with a thickness of less than 1mm or metal wire with a diameter of less than 1mm or other substrate to be printed which can be printed by a flexographic printing machine. The paper feed mechanism 9 is a feed mechanism corresponding to a flexographic printing substrate.
The delivery mechanism 10 is a delivery system in a known flexographic printing process, and the printed product after printing is passed through a drying system or drying mechanism 11 (hot air drying or ultraviolet drying), and collected for later use. The delivery mechanism 10 is a collection system corresponding to a substrate to be printed by a flexographic plate.
The flexographic plate cylinder 3 described above is a known hollow plate cylinder or solid plate cylinder for flexographic printing. The pattern (print) on the flexographic plate cylinder 3 is made according to known flexographic plate making processes, such as a laser engraving process, an electronic engraving process, a photosensitive washing process, and the like. The plate-line structure on the flexographic plate cylinder 3 is designed and manufactured according to a known flexographic plate-line structure. The material used for the flexographic plate cylinder is known as the material for flexographic printing cylinders.
The above-mentioned one-plate multicolor flexographic ink transfer system with color collecting cylinder 4 is based on the design principle of the one-plate multicolor letterpress printing technology with color collecting cylinder invented by olov of the saror printing expert in 1897, and the printing technology design principle is used in the flexographic printing technology, so that the current one-plate multicolor flexographic printing technology with color collecting cylinder is formed. The invention also discloses a one-plate multicolor dry offset printing (flat letterpress) printing technology with a color collecting cylinder, a one-plate multicolor engraving intaglio printing technology with a color collecting cylinder and a one-plate multicolor photogravure printing technology with a color collecting cylinder by using the design principle of olov.
The flexographic printing technology evolved from relief printing technology, both of which are reliefs, but the printing pressures were greatly different; the dry offset printing (flat letterpress) printing technology is also evolved from the letterpress printing technology, both are letterpresses, but the dry offset printing (flat letterpress) printing technology is an indirect printing technology, and the printing modes and the printing pressure of the dry offset printing (flat letterpress) printing technology are greatly different; compared with the water offset printing technology, the dry offset (flat relief) printing technology and the water offset printing technology are both indirect printing technologies, and in terms of printing ink technology, water is firstly supplied and then ink is supplied when the water offset printing ink is printed, and the problem of water-ink balance needs to be considered.
The flexographic plate wiring printer 1 of the present invention is based on a one-plate multicolor relief printing technique with a color collecting cylinder, a one-plate multicolor dry offset printing (flat relief) printing technique with a color collecting cylinder, a one-plate multicolor engraving intaglio printing technique with a color collecting cylinder, and a one-plate multicolor photogravure printing technique with a color collecting cylinder, and applies these printing technique design principles to the flexographic printing technique, the flexographic printing technology cannot be considered as one of anti-counterfeiting printing technologies before the invention, and the existing flexographic printing technology can be compared with a plate multicolor letterpress printing technology with a color collecting cylinder, a plate multicolor dry offset printing (flat letterpress) printing technology with a color collecting cylinder, a plate multicolor engraving intaglio printing technology with a color collecting cylinder and a plate multicolor photogravure printing technology with a color collecting cylinder, and can print any anti-counterfeiting technical printed product.
In principle, by arranging two monochrome mold cylinders around the color-collecting cylinder 4, it is possible to perform line printing. The more monochrome chablon cylinders around the colour-collecting cylinder 4, the higher the accuracy requirements of the printing press. Two or three or four single color rollers are arranged around the color collecting roller, so that the technical requirements of anti-counterfeiting printing can be met.
The color collecting cylinder 4 is provided with two or more than two monochromatic color model cylinders 5a-5d around, the monochromatic color model cylinders 5a-5d respectively transfer the ink with different colors to the color collecting cylinder 4, the color collecting cylinder 4 collects the ink with different colors and simultaneously transfers the ink to the flexible printing plate cylinder 3, so that at least one line in the pattern on the flexible printing plate cylinder 3, or the pattern formed by points and lines, or the pattern formed by points or characters are covered by the ink of the flexible printing plate with two or more than two different colors.
In the flexographic plate wiring printer 1 according to the present invention, a urethane rubber or other soft rubber having ink absorbability is bonded to the surface of the color-collecting cylinder 4 with a double-sided adhesive tape, and the soft rubber bonding portion (which can be calculated by area) corresponds to the pattern portion of the flexographic plate cylinder and is equal to or larger than the pattern portion (which can be calculated by area) of the flexographic plate cylinder; adhering polyurethane rubber or other soft rubber with ink absorption on the surface of the single-color mold roller by using double-sided adhesive tape, wherein the soft rubber adhesion part (calculated by area) corresponds to the soft rubber adhesion part (calculated by area) of the color collecting roller 4 and is smaller than the soft rubber adhesion part (calculated by area) of the color collecting roller 4; for example, there are four monochrome mold cylinders 5a, 5b, 5c, 5d around the color collecting cylinder 4, and the soft rubber bonding part (which can be calculated by area) on each monochrome mold cylinder is smaller than the soft rubber bonding part (which can be calculated by area) of the color collecting cylinder 4, but the sum of the soft rubber bonding parts (which can be calculated by area) on the four monochrome mold cylinders is equal to the soft rubber bonding part (which can be calculated by area) of the color collecting cylinder 4; the circumference of the flexible printing plate cylinder is integral multiple of the circumference of the color collecting cylinder bonded by the flexible rubber, and the circumference of the color collecting cylinder is integral multiple of the circumference of the single-color mold cylinder bonded by the flexible rubber. The two cylinders run synchronously with the same flexographic plate cylinder circumference and color-collecting cylinder circumference. If the circumference of the flexible printing plate cylinder is different from the circumference of the color collecting cylinder, but the circumference of the flexible printing plate cylinder is integral multiple of the circumference of the color collecting cylinder; or if the circumference of the color collecting roller is different from the circumference of the monochrome color model roller, but the circumference of the color collecting roller is integral multiple of the circumference of the monochrome color model roller, the power system needs to be designed respectively. For example, if the circumference of the color-collecting cylinder is 2 times the circumference of the monochrome mask cylinder, the color-collecting cylinder rotates 1 cycle and the monochrome mask cylinder rotates 2 cycles. Therefore, the circumference of the flexible printing plate cylinder, the circumference of the color collecting cylinder, the circumference of the monochrome color mold cylinder and the like are analogized, and the calculation is required to be carried out seriously during the power design.
Besides adopting double-faced adhesive tape to adhere polyurethane rubber or other soft rubber with ink absorption on the surface of the color collecting roller or the monochrome color mold roller, the monochrome color mold roller or the color collecting roller can also adopt a rubber roller or a polyurethane rubber roller or a water-based nylon roller or other rollers with ink absorption. The Shore hardness of the rubber roller or the corresponding roller is more than or equal to that of the common ink transfer rubber roller, and the Shore hardness is more than 35 degrees. This is important for three-color wiring printing or four-color wiring printing because the hardness of the rubber roller is higher when engraving (such as laser engraving, mechanical engraving, etc.) by a computer, and the rubber roller is not easily deformed when engraving. Especially, when the printing of three-color wiring or four-color wiring requires high precision, the hardness of the rubber roller is higher, and the printing registration precision is high.
In the flexographic plate wiring printing machine 1 according to the present invention, the ink transfer system for one plate and multiple colors of flexographic plate with the color collecting cylinder 4 transfers the inks of different colors to the respective anilox rollers 6a, 6b, 6c, 6d from the ink tanks 7a, 7b, 7c, 7d of different colors, and then transfers the inks of different colors to the monochrome color mold cylinder 5a, the monochrome color mold cylinder 5b, the monochrome color mold cylinder 5c, and the monochrome color mold cylinder 5d through the anilox roller scrapers 8a, 8b, 8c, 8d, respectively, and the monochrome color mold cylinders 5a-5d transfer the inks of different colors to the color collecting cylinder 4, and the color collecting cylinder 4 transfers the inks of different colors to the flexographic printing plate cylinder 3 after collecting the inks of different colors, thereby completing the ink transfer. Flexographic printing plate cylinder 3 operates in conjunction with impression cylinder 2 to transfer ink from flexographic printing plate cylinder 3 to the substrate being printed, completing the flexographic printing process.
The printed products are collected for later use after passing through a drying mechanism 11 (hot air drying or ultraviolet drying), and the hot air drying or the ultraviolet drying is a necessary process link of the flexographic plate wiring printer, otherwise, the printed products are mutually bonded, and unnecessary waste is caused.
The printing method of the flexographic wiring printing machine 1 according to the present invention, including the relation of the circumferences of the respective cylinders in the ink supply system (including the flexographic printing plate cylinder 3, the color collecting cylinder 4, the monochrome mold cylinders 5a to 5d, etc.), the impression cylinder 2, the drying mechanism 11, the paper collecting mechanism 10, etc., has been described above. What is described here is a product for printing security technology, how the above-mentioned systems or mechanisms are coordinated, that is, how the flexographic printing press 1 is applied, to meet the requirements of security technology printed products.
List of reference numerals
1 Flexible printing machine
2 impression cylinder
3 flexographic plate cylinder
4 color collecting roller
5a-5d monochrome colour mould roller
6a-6d anilox roll
7a-7d ink tank
8a-8d anilox roller scraper
9 paper feeding mechanism
10 paper collecting mechanism
11 drying mechanism.
Claims (8)
1. A flexographic plate wiring printing machine comprises a paper feeding mechanism and a paper receiving mechanism for flexographic printing, a drying mechanism, a flexographic plate cylinder and an impression cylinder, and is characterized by also comprising a one-plate multicolor flexographic plate ink transfer system with a color collecting cylinder; more than two monochromatic color mold cylinders are arranged around the color collecting cylinder, the monochromatic color mold cylinders are used for respectively transferring the printing inks with different colors to the color collecting cylinder, the color collecting cylinder is used for collecting the printing inks with different colors and simultaneously transferring the collected printing inks to the flexible printing plate cylinder, so that at least one line in the pattern on the flexible printing plate cylinder is covered by the flexographic printing inks with two or more different colors, wherein the at least one line is a pattern formed by points and lines or a pattern formed by points or a pattern or characters formed by lines; the impression cylinder is operable in cooperation with the flexographic plate cylinder to complete a flexographic wire printing process.
2. The flexographic plate wiring printing press according to claim 1, wherein the one-plate multi-color flexographic plate ink transfer system with the color collecting cylinder transfers inks of different colors from the ink fountain to the respective anilox roller, and then transfers the inks of different colors to the respective monochrome mold cylinders by the anilox roller scraper, and the monochrome mold cylinders transfer the inks of different colors to the color collecting cylinder, and the color collecting cylinder transfers the inks of different colors to the flexographic plate cylinder after collecting the inks.
3. The flexographic plate binding printing press according to claim 1, wherein said color-collecting cylinder is formed by adhering a polyurethane rubber or other soft rubber having ink-absorbing property to the surface of the color-collecting cylinder by using a double-sided adhesive, and the soft rubber adhered portion corresponds to and is equal to or greater than the pattern portion of the plate cylinder.
4. The flexographic plate rotary press according to claim 1, wherein said monochrome cylinder is formed by adhering a polyurethane rubber or other soft rubber having ink absorbability to the surface of the monochrome cylinder by means of a double-sided adhesive, and the soft rubber adhesion portion corresponds to and is smaller than the soft rubber adhesion portion of the color collecting cylinder.
5. The flexographic plate gang printing press according to claim 1, wherein said monochrome mask cylinder or color-collecting cylinder is a rubber roller or a polyurethane rubber roller or a water-based nylon roller having a shore hardness of 35 degrees or more.
6. The flexographic plate wiring press according to claim 1, wherein the circumference of the flexographic plate cylinder is an integral multiple of the circumference of the color-collecting cylinder after the flexible blanket bonding, and the circumference of the color-collecting cylinder is an integral multiple of the circumference of the monochrome mask cylinder after the flexible blanket bonding.
7. Printing method for execution in a flexographic printing press according to any one of claims 1 to 6, characterized in that it comprises the following steps:
operating the monochrome color mold cylinder to transfer different colors of ink to the color collection cylinder, respectively;
operating the color collecting cylinder to collect the inks of different colors and transfer the collected inks to the flexible printing plate cylinder;
at least one line in the pattern on the flexographic plate cylinder is covered by flexographic printing ink of two or more different colors, wherein the at least one line is a pattern consisting of dots and lines or a pattern consisting of dots or a pattern consisting of lines or characters.
8. A method of printing as claimed in claim 7, further comprising the step of coordinating the systems or mechanisms to obtain a printed product meeting security requirements.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510116855.5A CN106032087A (en) | 2015-03-17 | 2015-03-17 | Flexographic plate wiring printing machine and printing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510116855.5A CN106032087A (en) | 2015-03-17 | 2015-03-17 | Flexographic plate wiring printing machine and printing method thereof |
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| CN106032087A true CN106032087A (en) | 2016-10-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510116855.5A Pending CN106032087A (en) | 2015-03-17 | 2015-03-17 | Flexographic plate wiring printing machine and printing method thereof |
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| CN (1) | CN106032087A (en) |
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| TWI675754B (en) * | 2018-12-20 | 2019-11-01 | 嚴甘章 | Wave board topcoat painting device |
| WO2020048202A1 (en) * | 2018-09-05 | 2020-03-12 | 樊官保 | Ink supply system, printer comprising said ink supply system, and printing method |
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