CN115431627B - Bulk plate making and attaching method based on flexographic preprinting process - Google Patents
Bulk plate making and attaching method based on flexographic preprinting process Download PDFInfo
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- CN115431627B CN115431627B CN202110626428.7A CN202110626428A CN115431627B CN 115431627 B CN115431627 B CN 115431627B CN 202110626428 A CN202110626428 A CN 202110626428A CN 115431627 B CN115431627 B CN 115431627B
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- 238000000034 method Methods 0.000 title claims abstract description 58
- 239000011347 resin Substances 0.000 claims abstract description 47
- 229920005989 resin Polymers 0.000 claims abstract description 47
- 238000005520 cutting process Methods 0.000 claims abstract description 21
- 239000002390 adhesive tape Substances 0.000 claims abstract description 15
- 238000007789 sealing Methods 0.000 claims description 15
- 239000003292 glue Substances 0.000 claims description 13
- 239000000853 adhesive Substances 0.000 claims description 5
- 230000001070 adhesive effect Effects 0.000 claims description 5
- 238000013461 design Methods 0.000 abstract description 11
- 239000000463 material Substances 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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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
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41N—PRINTING PLATES OR FOILS; MATERIALS FOR SURFACES USED IN PRINTING MACHINES FOR PRINTING, INKING, DAMPING, OR THE LIKE; PREPARING SUCH SURFACES FOR USE AND CONSERVING THEM
- B41N1/00—Printing plates or foils; Materials therefor
- B41N1/12—Printing plates or foils; Materials therefor non-metallic other than stone, e.g. printing plates or foils comprising inorganic materials in an organic matrix
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Manufacture Or Reproduction Of Printing Formes (AREA)
Abstract
The invention discloses a scattered platemaking and pasting method based on a flexographic preprinting process, which comprises the steps of forming preset pasting coordinates according to the to-be-printed direction of a pre-designed printing pattern; correspondingly carving a printing pattern on the resin plate; selecting preset plate attaching coordinates matched with the printing patterns, and forming a plurality of plate attaching ink marks on the resin plate corresponding to the selected preset plate attaching coordinates; cutting the resin plate corresponding to the printing pattern, and reserving the plate pasting ink marks during cutting to form a scattered plate; attaching double faced adhesive tape; and adjusting a cross cursor of the plate attaching machine according to the selected preset plate attaching coordinates, aligning the plate attaching ink marks of the loose plates with the cross cursor of the plate attaching machine, completing alignment, and then attaching the loose plates on a plate belt, a plate roller or a plate attaching sleeve. The invention has reasonable design and simple and convenient operation, not only meets the accuracy of plate pasting, but also reduces the plate area of the resin plate, lightens the material consumption of the resin plate and the double faced adhesive tape, and can be applied to plate belts, plate pasting sleeves and various plate rollers.
Description
Technical Field
The invention relates to the technical field of printing plate manufacturing processes, in particular to a loose plate making and attaching method based on a flexographic preprinting process.
Background
At present, the pre-printer mainly comprises a flexographic pre-printing process and a gravure pre-printing process, wherein the flexographic pre-printing process is a mainstream promotion process of pre-printing processing in order to respond to the carbon neutralization and clean production requirements of the country because the used ink is environment-friendly water-based ink. The principle of flexographic preprinting is: and (3) carving the printing content on the photosensitive resin plate by laser, then pasting the carved photosensitive resin plate on a plate roller or a plate belt of a preprinting machine, loading the preprinting machine, and transferring the printing ink on a screen roller of the preprinting machine to a printing stock through the photosensitive resin plate to finish printing. The biggest problem of the current flexographic preprinting process is the cost is excessive compared with other printing processes.
Firstly, the printing plate process in the flexographic pre-printing adopts a resin printing plate, which leads to very high cost of the printing plate, on one hand, because the unit price of the resin printing plate is high, and on the other hand, because the flexographic pre-printing resin printing plate must be manufactured into a full plate with each color, otherwise, the serious problems of inaccurate plate pasting, plate surface warping and the like exist, but the area of the resin printing plate used for manufacturing the full plate is greatly increased compared with that of other printing plates, and the use cost is naturally higher after the area of the plate is increased.
Secondly, the flexographic printing process must use imported foam double faced adhesive tape for printing, which is expensive, and the flexographic pre-printing resin plate must be made full-color for each color, so that the double faced adhesive tape is correspondingly pasted with a large area, and the use cost of the double faced adhesive tape is also high.
The high cost caused by the two conditions greatly restricts the development of the flexographic preprinting process, and many enterprises abandon the flexographic preprinting process based on cost consideration, so that the green production requirement of the industrial production in the current stage of China is difficult to advance in the preprinting process link.
Disclosure of Invention
In view of the foregoing, it is desirable to provide a method for printing a plate on a flexographic printing plate, which reduces the material consumption of the flexographic printing plate and double-sided tape by reducing the plate area of the resin plate while satisfying the plate accuracy.
The invention is realized by the following technical scheme:
s1, forming preset plate pasting coordinates according to a pre-designed position to be printed of a pattern to be printed; s2, correspondingly carving a printing pattern on the resin plate according to the shape of the pre-designed pattern to be printed; s3, selecting preset plate pasting coordinates matched with the printing patterns, and correspondingly selecting the preset plate pasting coordinates to carry out coordinate marking on the printing patterns engraved on the resin plate so as to form a plurality of plate pasting ink marks on the resin plate; s4, cutting the resin plate after carving corresponding to the printing pattern, and reserving corresponding plate-pasting ink marks during cutting to form a scattered plate with the printing pattern and the corresponding plate-pasting ink marks; s5, attaching double-sided adhesive tape on a plate belt, a plate roller or a plate attaching sleeve corresponding to the pattern to be printed; s6, adjusting the position of a cross cursor of the plate pasting machine to a selected preset plate pasting coordinate, and aligning the plate pasting ink marks corresponding to the preset plate pasting coordinate on the loose plate with the cross cursor of the plate pasting machine so as to paste the loose plate on a plate belt, a plate roller or a plate pasting sleeve.
In one embodiment, preset plate coordinates are distributed along the central axis of the pattern to be printed; the plate ink marks are cross-shaped, and a plurality of plate ink marks are distributed along the central axis of the printed pattern.
In one embodiment, step S1 further includes: s11, when preset plate pasting coordinates are formed, marking a plurality of preset plate pasting coordinates according to sequence numbers; the step S3 further includes: s31, when the coordinate marks of the plate ink marks are carried out, the plurality of plate ink marks are marked according to the sequence numbers corresponding to the sequence marks of the preset plate coordinates.
In one embodiment, step S6 further includes: and S61, adjusting the cross cursor according to the label sequence of preset plate pasting coordinates, aligning the plate pasting ink marks with the cross cursor one by one according to the label sequence, and pasting the scattered plates on a plate belt, a plate roller or a plate pasting sleeve according to the label sequence.
In one embodiment, when there are a plurality of patterns to be printed that need to be printed simultaneously in one printing process, step S2 further includes: s21, a plurality of pre-designed patterns to be printed are arranged on the resin plate in a concentrated mode to be engraved.
In one embodiment, step S4 further includes: s41, cutting the resin plate after carving corresponding to each printing pattern, reserving corresponding plate pasting ink marks during cutting to form a plurality of scattered plates with the printing patterns and the corresponding plate pasting ink marks, and classifying and storing the plurality of scattered plates after cutting according to the shapes of the printing patterns.
In one embodiment, the cut area of the relief plate is slightly larger than the corresponding printed pattern and the footprint of the decal ink on the resin plate.
In one embodiment, step S6 further includes: s7, after the loose plate is stuck on a plate belt, a plate roller or a plate sticking sleeve, performing secondary sealing on the edge of the loose plate through adhesive tape or strong adhesive; wherein, when the strong glue is adopted for secondary glue sealing, the glue is dried and fixed for more than 2 hours after glue sealing.
The invention also provides a loose plate making and pasting method based on the flexographic preprinting process, which comprises the following steps: the method comprises the steps of T1, tiling a plate belt on a line drawing machine, and correspondingly drawing outlines of a plurality of patterns to be printed on the surface of the plate belt through the line drawing machine according to the shapes and the orientations of the predesigned patterns to be printed; t2, engraving a plurality of preset printing patterns on the resin plate, and cutting the engraved resin plate corresponding to each printing pattern to form a corresponding scattered plate; t3, attaching double-sided adhesive tapes on the plate strips corresponding to the outline of each pattern to be printed; and T4, adhering the scattered plate corresponding to the printing pattern on the plate belt according to the outline of the pattern to be printed drawn on the surface of the plate belt.
In one embodiment, step T4 further comprises: t5, after the loose plate is stuck on the plate belt, performing secondary sealing on the edge of the loose plate through adhesive tape or strong adhesive; wherein, when the strong glue is adopted for secondary glue sealing, the glue is dried and fixed for more than 2 hours after glue sealing.
Compared with the prior art, the technical scheme of the invention has at least the following advantages and beneficial effects:
according to the first embodiment of the invention, the plate pasting coordinates are preset according to the direction of the printed patterns, then the plate pasting ink marks are marked on the resin plate corresponding to the preset plate pasting coordinates in plate making, then the resin plate is cut, the scattered plate engraved with the printed patterns and the plate pasting ink marks is cut, finally the cross cursor of the plate pasting machine is pre-positioned according to the preset plate pasting coordinates of the design drawings, and the scattered plate is accurately and firmly pasted on the plate belt, the plate roller or the plate pasting sleeve by utilizing the correspondence of the preset plate pasting coordinates and the plate pasting ink marks.
According to the second embodiment of the invention, the shape and the azimuth of the printed pattern are drawn on the plate belt by using the line drawing machine, then the resin plate is cut, the scattered plate engraved with the printed pattern is cut, the scattered plate corresponding to the printed pattern is accurately attached to the plate belt according to the printed pattern drawn on the surface of the plate belt, and the method is suitable for flexible printing with low precision requirements, but is more convenient than the first embodiment, and the universality of the method is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a preset design drawing provided in an embodiment of the present invention;
FIG. 2 is a schematic view of a resin plate according to an embodiment of the present invention;
FIG. 3 is a schematic view of a cut loose plate according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of cross cursor positioning of a plate band according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a plate with a loose plate adhered thereon according to an embodiment of the present invention.
Icon: 1-preset drawing, 11-pattern to be printed, 12-preset paste coordinates, 2-resin plate, 21-scattered plate, 22-pattern to be printed, 23-paste ink mark, 3-plate belt and 31-cross cursor.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, reference will be made to the accompanying drawings in the embodiments of the present invention, A method for printing on a plate by using a scattered plate based on a flexographic preprinting process is more clearly and completely described. The figures show preferred embodiments of the flexographic printing process-based, bulk platemaking method, however, the flexographic printing process-based, bulk platemaking method can be implemented in many different forms and is not limited to the embodiments described herein. Rather, the purpose of these embodiments is to provide a more thorough and complete disclosure of a flexographic plate making and pasting method based on a flexographic preprinting process.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the present invention, it is to be understood that all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs unless explicitly defined and defined otherwise. Where the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," and the like are used in the same sense as the figures or are conventional in the practice of the invention, they are merely used in describing the invention and to simplify the description, rather than to indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the invention.
The embodiment of the invention provides a method for plate making and plate pasting of a scattered plate based on a flexographic preprinting process, which comprises the following steps:
s1, as shown in FIG. 1, according to the pre-design drawing 1 (the pre-design drawing 1 is designed with the area, the shape size and the azimuth of the pattern 11 to be printed, which belongs to the prior art), a plurality of pre-design plate coordinates 12 are added and formed on the pre-design drawing 1, each pre-design plate coordinate 12 has a definite and unique [ X, Y ] coordinate value, and the azimuth of the corresponding pattern 11 to be printed can be identified through the plurality of pre-design plate coordinates 12 corresponding to each pattern 11 to be printed; in the present embodiment, preset plate coordinates 12 are arranged along the central axis of the pattern 11 to be printed. It can be appreciated that the preset plate coordinates 12 may be used as position identification marks, and may be reasonably distributed according to the shape of the pattern 11 to be printed, for example, may also be distributed around the pattern 11 to be printed.
S2, as shown in FIG. 2, according to the shape of the pre-designed pattern 11 to be printed, the printed pattern 22 can be correspondingly engraved on the resin plate 2, and in general, the printed pattern 22 on the resin plate is engraved by laser according to the design drawing, which is not described in detail herein.
S3, as shown in fig. 1 and 2, selecting preset plate coordinates 12 (such as A and F) matched with the printed pattern 22, and corresponding to the preset plate coordinates 12, performing coordinate marking on the printed pattern 22 engraved on the resin plate 2 to form a plurality of plate ink marks 23 matched with the printed pattern 22 on the resin plate 2; in general, the position identifying marks formed by the ink marks 23 corresponding to the preset ink marks 12 are distributed in the same manner as the print patterns 22 are distributed by the ink marks 12 corresponding to the print patterns 11, and in this embodiment, the two preset ink marks 23 closest to the two ends of the central axis of the print patterns 11 are selected to match the print patterns 22.
S4, as shown in FIG. 3, the engraved resin plate 2 is cut corresponding to the printing pattern 22, and corresponding plate attaching ink marks 23 are reserved during cutting, so that a scattered plate 21 with the printing pattern 22 and the corresponding plate attaching ink marks 23 is formed, and plate making of the scattered plate 21 is completed.
S5, attaching double-sided adhesive tape to the plate belt, the plate roller or the plate attaching sleeve corresponding to the pattern 11 to be printed; the area covered by the double-sided adhesive tape is larger than the area of the pattern 11 to be printed or the same as the area of the scattered plate 21.
S6, as shown in FIG. 4, the position of the cross cursor 31 of the plate sticking machine is adjusted to the selected preset plate sticking coordinates 12 (such as A and F), and it can be understood that the coordinate data of all preset plate sticking coordinates are correspondingly recorded in the plate sticking machine, so that the cross cursor 31 of the plate sticking machine can be accurately adjusted to any preset plate sticking coordinate; then, the loose plate 21 is arranged on a plate attaching machine, as shown in fig. 5, the plate attaching ink marks 23 corresponding to the preset plate attaching coordinates 12 on the loose plate 21 are aligned with the cross cursors 31 of the plate attaching machine, so that the loose plate 21 is attached to the plate belt 3, the plate roller or the plate attaching sleeve, and the plate attaching of the loose plate 21 is completed. In this embodiment, since there are only two ink marks 23, the position of the cross-shaped cursor 31 of the plate attaching machine can be adjusted to a selected preset plate attaching coordinate 12 (e.g. a), the ink marks 23 of the plate attaching machine corresponding to the preset plate attaching coordinate 12 on the loose plate 21 are aligned to the cross-shaped cursor 31 of the plate attaching machine, so as to attach the loose plate 21 on the plate belt 3, the plate roller or the plate attaching sleeve, and complete the plate attaching on one side of the loose plate 21; and then adjusting the position of the cross cursor 31 of the plate attaching machine to another selected preset plate attaching coordinate 12 (such as F), aligning the plate attaching ink marks 23 corresponding to the preset plate attaching coordinate 12 on the loose plate 21 with the cross cursor 31 of the plate attaching machine so as to attach the loose plate 21 on the plate belt 3, the plate roller or the plate attaching sleeve, and completing plate attaching on the other side of the loose plate 21.
Further, as shown in fig. 2, the ink paste mark 23 is cross-shaped, and the axial direction of the cross-shape corresponds to the X-axis and the Y-axis respectively, so that the ink paste mark 23 and the cross-shaped cursor 31 can be aligned with the pasting direction of the loose plate 21 at one time.
Further, as shown in fig. 1, step S1 further includes: s11, when the preset plate pasting coordinates 12 are formed, marking a plurality of preset plate pasting coordinates 12 according to sequence numbers; as shown in fig. 2 and 3, step S3 further includes: s32, when the coordinate marking of the plate ink marks 23 is carried out, the plurality of plate ink marks 23 are marked according to sequence numbers corresponding to the sequence marks of the preset plate coordinates 12. The ink mark 23 of the printing plate can be further accurately corresponding to the preset printing plate coordinate 12 through the sequence marks, and the correct direction of the scattered printing plate 21 can be distinguished; the problem that the preset plate pasting coordinates 12 are too symmetrical to cause unclear pasting time and positive and negative time when the preset plate pasting coordinates 12 are distributed around the pattern 11 to be printed for marking can be avoided.
Further, step S6 further includes: and S61, adjusting the cross cursor according to the label sequence of preset plate pasting coordinates, aligning the plate pasting ink marks with the cross cursor one by one according to the label sequence, and pasting the scattered plates on a plate belt, a plate roller or a plate pasting sleeve according to the label sequence. The scattered plates are pasted according to the sequence numbers, so that the pasting process can be well recorded, and the condition that a certain paste ink mark or a certain corner is missed is avoided.
It is understood that, in order to improve the printing efficiency, a plurality of patterns to be printed may be designed and distributed on the plate belt, the plate roller or the plate attaching sleeve, so that a plurality of printed patterns can be printed simultaneously in one printing process, which is also considered to be within the protection scope of the present invention. When a plurality of printing patterns needing to be printed simultaneously exist in one printing process, taking a single printing pattern as a reference, marking a plurality of preset plate pasting coordinates corresponding to the single printing pattern as a reference group, marking a plurality of plate pasting ink corresponding to the plurality of preset plate pasting coordinates of the reference group as a reference group, cutting out scattered plates with the single printing pattern and the plate pasting ink marks of the corresponding group as counting units, and when the scattered plates are pasted through a plate pasting machine, matching the reference group and the reference group to realize scattered plate pasting of one counting unit, and then carrying out scattered plate pasting of the next counting unit until the scattered plate pasting of all the printing patterns needing to be printed simultaneously is completed.
When the plate roller or the plate pasting sleeve is adopted for carrying out plate pasting of scattered plates, the cross cursor of the plate pasting machine can only move along the X-axis direction, and the Y-axis direction can be adjusted by rotating the plate roller or the plate pasting sleeve. In general, the device for transmitting the cross cursor of the plate pasting machine is provided with two cameras along the X axis, so that preset plate pasting coordinates of the scattered plates in different columns are distributed in the same row on the Y axis, namely Y values are the same, and when the preset plate pasting coordinates distributed in the same row are selected by the plate pasting ink marks of the scattered plates in different columns, the preset plate pasting coordinates distributed in the same row of the scattered plates in different columns are respectively aligned by the two cameras, so that the rapid alignment of the scattered plates in different columns and the accurate positioning in the Y axis direction are realized.
In addition, when the printing contents of the plurality of printing patterns are different but the shapes are the same, the positions of a plurality of preset plate coordinates (and a plurality of corresponding plate ink marks) corresponding to the different printing patterns can be properly adjusted, the positions can be adapted to the shapes of the printing patterns, and the corresponding printing patterns can be distinguished (if the pattern to be printed is rectangular, the preset plate coordinates can be distributed at four corners of the rectangular pattern and can also be distributed at four sides of the rectangular pattern). .
Further, when there are a plurality of print patterns to be printed at the same time in one printing process, step S2 further includes: s21, a plurality of pre-designed printing patterns are arranged on a whole full-plate resin plate in a concentrated mode to be engraved, the resin plate is utilized to the greatest extent, and cutting gaps among scattered plates are reduced. The design of the engraving program for printing patterns is further facilitated and the centralized engraving efficiency is improved through a centralized arrangement mode.
Further, step S4 further includes: s41, cutting the resin plate after carving corresponding to each printing pattern, reserving corresponding plate pasting ink marks during cutting to form a plurality of scattered plates with the printing patterns and the corresponding plate pasting ink marks, and classifying and storing the plurality of scattered plates after cutting according to the shapes of the printing patterns. In order to improve printing efficiency, a plurality of printing rollers are usually used for printing at the same time, after a plurality of resin plates are engraved, a plurality of printing plates can be intensively stacked, then are cut at the same time, scattered plates are classified and intensively stored according to the content of a printing pattern after being cut, and the taking and placing are accurate and convenient.
Further, when the scattered plate is cut, the cutting area of the scattered plate is slightly larger than the coverage area of the corresponding plate-pasting ink marks and the printing patterns on the resin plate so as to reserve a proper pasting operation area, and the scattered plate can be used for making plate edge support for subsequent secondary sealing.
Further, step S6 further includes: s7, after the loose plate is stuck on the plate belt, the plate roller or the plate pasting sleeve, the edge of the loose plate is subjected to secondary sealing through an adhesive tape or strong adhesive, and when the strong adhesive is adopted for secondary sealing, the loose plate is dried and fixed for more than 2 hours, preferably 2-3 hours after sealing, so that the loose plate is firmly clung to the plate belt, the plate roller or the plate pasting sleeve, and the printing quality is ensured.
The embodiment of the invention also provides a scattered plate making and pasting method based on a flexible plate preprinting process, which is suitable for a flexible preprinting unit provided with a line drawing machine and a plate belt, wherein the line drawing machine can correspondingly draw a line frame which is approximately similar to the outline of a pattern to be printed on the plate belt in the printing field, and the method comprises the following steps:
the method comprises the steps of T1, tiling a plate belt on a line drawing machine, and correspondingly drawing outlines of a plurality of patterns to be printed on the surface of the plate belt through the line drawing machine according to the shapes and the orientations of the predesigned patterns to be printed;
t2, engraving a plurality of preset printing patterns on the resin plate, and cutting the engraved resin plate corresponding to each printing pattern to form a corresponding scattered plate;
t3, attaching double-sided adhesive tapes on the plate strips corresponding to the outline of each pattern to be printed;
and T4, adhering the scattered plate corresponding to the printing pattern on the plate belt according to the outline of the pattern to be printed drawn on the surface of the plate belt.
It can be understood that the operation modes of the steps T2 and T3 are almost the same as those of the steps S4 and S5 in the foregoing method, and in the step T4, since the outline of the pattern to be printed is similar to that of the printed pattern, the printed pattern engraved on the relief plate and the outline of the pattern to be printed on the plate can be directly arranged and pasted correspondingly; the scattered plate can be arranged on a plate pasting machine, the printing patterns on the scattered plate are overlapped with the outline of the pattern to be printed on the plate belt through a cross cursor of the plate pasting machine to finish alignment, and then the scattered plate is pasted on the plate belt to finish plate pasting of the scattered plate.
Further, step T4 further includes: and T5, after the loose plate is adhered on the plate belt, carrying out secondary sealing on the edge of the loose plate through strong glue, and drying and fixing for more than 2 hours, preferably 2-3 hours after sealing, so that the loose plate is firmly attached to the plate belt, the plate roller or the plate attaching sleeve, and the printing quality is ensured.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A loose plate making and pasting method based on a flexographic preprinting process is characterized by comprising the following steps:
s1, forming preset plate pasting coordinates according to the to-be-printed azimuth of a pre-designed pattern to be printed;
s2, correspondingly carving a printing pattern on the resin plate according to the shape of the pre-designed pattern to be printed;
s3, selecting preset plate pasting coordinates matched with the printing patterns, and correspondingly selecting the preset plate pasting coordinates to carry out coordinate marking on the printing patterns engraved on the resin plate so as to form a plurality of plate pasting ink marks on the resin plate;
s4, cutting the resin plate after carving corresponding to the printing pattern, and reserving corresponding plate-pasting ink marks during cutting to form a scattered plate with the printing pattern and the corresponding plate-pasting ink marks;
s5, attaching double-sided adhesive tape on a plate belt, a plate roller or a plate attaching sleeve corresponding to the pattern to be printed;
s6, adjusting the position of a cross cursor of the plate pasting machine to a selected preset plate pasting coordinate, and aligning the plate pasting ink marks corresponding to the preset plate pasting coordinate on the loose plate with the cross cursor of the plate pasting machine so as to paste the loose plate on a plate belt, a plate roller or a plate pasting sleeve.
2. The method for plate-making and plate-attaching on the basis of a flexographic preprinting process according to claim 1, wherein the preset plate coordinates are distributed along the central axis of the pattern to be printed; the plate ink marks are cross-shaped, and a plurality of plate ink marks are distributed along the central axis of the printing pattern.
3. The method for platemaking and platemaking based on the flexographic preprinting process according to claim 1, wherein step S1 further comprises:
s11, when the preset plate pasting coordinates are formed, marking a plurality of preset plate pasting coordinates according to sequence numbers;
the step S3 further includes:
and S31, when the coordinate marking of the plate ink marks is carried out, marking the plurality of plate ink marks according to sequence numbers corresponding to the sequence numbers of the preset plate coordinates.
4. A method of flexographic plate making and plate pasting according to claim 3, wherein step S6 further comprises:
and S61, adjusting the cross cursors according to the label sequence of the preset plate pasting coordinates, aligning the plate pasting ink marks with the cross cursors one by one according to the label sequence, and pasting the scattered plates on a plate belt, a plate roller or a plate pasting sleeve according to the label sequence.
5. The method for printing on a flexographic printing plate according to claim 1, wherein when there are a plurality of patterns to be printed which need to be printed simultaneously in one printing process, step S2 further comprises:
s21, a plurality of pre-designed patterns to be printed are arranged on the resin plate in a concentrated mode to be engraved.
6. The method for platemaking and platemaking based on the flexographic preprinting process according to claim 5, wherein step S4 further comprises:
s41, cutting the resin plate after carving corresponding to each printing pattern, reserving corresponding plate pasting ink marks during cutting to form a plurality of scattered plates with the printing patterns and the corresponding plate pasting ink marks, and classifying and storing the plurality of scattered plates after cutting according to the shapes of the printing patterns.
7. The method for printing on a flexographic printing plate according to claim 1, wherein the cut area of the flexographic printing plate is slightly larger than the corresponding coverage area of the printed pattern and the plate ink on the resin plate.
8. The method of flexographic printing according to any of claims 1-7, further comprising, after step S6:
s7, after the loose plate is stuck on a plate belt, a plate roller or a plate sticking sleeve, performing secondary sealing on the edge of the loose plate through adhesive tape or strong adhesive; wherein, when the strong glue is adopted for secondary glue sealing, the glue is dried and fixed for more than 2 hours after glue sealing.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110626428.7A CN115431627B (en) | 2021-06-04 | 2021-06-04 | Bulk plate making and attaching method based on flexographic preprinting process |
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| CN202110626428.7A CN115431627B (en) | 2021-06-04 | 2021-06-04 | Bulk plate making and attaching method based on flexographic preprinting process |
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| CN115431627A CN115431627A (en) | 2022-12-06 |
| CN115431627B true CN115431627B (en) | 2023-12-29 |
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2004130610A (en) * | 2002-10-09 | 2004-04-30 | Tohoku Ricoh Co Ltd | Plate supply device of printer and plate supply method for printer |
| JP2007245510A (en) * | 2006-03-15 | 2007-09-27 | Tohoku Ricoh Co Ltd | Printing plate discharging apparatus and stencil printing apparatus |
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| CN115431627A (en) | 2022-12-06 |
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