CN111532049A - Digital printing method, digital printer and storage medium - Google Patents
Digital printing method, digital printer and storage medium Download PDFInfo
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- CN111532049A CN111532049A CN202010441784.7A CN202010441784A CN111532049A CN 111532049 A CN111532049 A CN 111532049A CN 202010441784 A CN202010441784 A CN 202010441784A CN 111532049 A CN111532049 A CN 111532049A
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Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/0011—Pre-treatment or treatment during printing of the recording material, e.g. heating, irradiating
- B41M5/0017—Application of ink-fixing material, e.g. mordant, precipitating agent, on the substrate prior to printing, e.g. by ink-jet printing, coating or spraying
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J11/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form
- B41J11/0015—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form for treating before, during or after printing or for uniform coating or laminating the copy material before or after printing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/21—Ink jet for multi-colour printing
- B41J2/2107—Ink jet for multi-colour printing characterised by the ink properties
- B41J2/2114—Ejecting specialized liquids, e.g. transparent or processing liquids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/21—Ink jet for multi-colour printing
- B41J2/2132—Print quality control characterised by dot disposition, e.g. for reducing white stripes or banding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J3/00—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed
- B41J3/407—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for marking on special material
- B41J3/4078—Printing on textile
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/0023—Digital printing methods characterised by the inks used
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/0041—Digital printing on surfaces other than ordinary paper
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/0041—Digital printing on surfaces other than ordinary paper
- B41M5/0047—Digital printing on surfaces other than ordinary paper by ink-jet printing
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Quality & Reliability (AREA)
- Printing Methods (AREA)
Abstract
The present invention relates to the field of digital printing technologies, and in particular, to a digital printing method, a digital printer, and a storage medium. The digital printing method, the printer and the storage medium provided by the embodiment of the invention can control the printing device for spraying the wetting liquid and the color ink to alternately spray the wetting liquid and the color ink on the printing stock for multiple times according to the acquired image data, so that the wetting liquid layers and the color ink layers in the image printed on the printing stock are alternately distributed. Therefore, the color ink layer can be sufficiently contacted and sufficiently reacted with the adjacent wetting liquid layer, thereby increasing the bonding strength of the color ink layer and the wetting liquid layer. Therefore, the patterns printed by the digital printing method, the printer and the storage medium provided by the embodiment of the invention have high color fastness and are not easy to damage in the washing and using processes.
Description
Technical Field
The present invention relates to the field of digital printing technologies, and in particular, to a digital printing method, a digital printer, and a storage medium.
Background
At present, in order to meet the high requirements of people on the quality of printed patterns on high-end clothing products (e.g., NIKE, Adidas), the icons on the high-end clothing products are generally printed on the market by means of screen printing. However, screen printing requires the production of a screen plate, and the printing process is very complicated. Compared with silk-screen printing, digital printing does not need to manufacture a screen printing plate and repeat the process of color register and the like, and has the advantages of simple and convenient operation, high pattern printing speed and the like.
However, in the process of implementing the present invention, the inventor finds that in the prior art, the color fastness of the pattern printed by a digital printing method is not high enough, and the pattern is easy to damage when being washed or wiped, and cannot meet the quality standard of the printed pattern in the high-end clothing market.
Disclosure of Invention
In order to overcome the defect that the color fastness of a digital printing pattern does not meet the standard, the invention aims to provide a digital printing method and a printer capable of improving the color fastness of the digital printing pattern, wherein wetting liquid and color ink can be alternately printed, so that the wetting liquid layer and the color ink layer are overlapped and distributed, and the bonding strength of the wetting liquid and the color ink is improved.
In order to solve the above technical problem, an embodiment of the present invention provides the following technical solutions:
in a first aspect, an embodiment of the present invention provides a digital printing method applied to a digital printer, where the digital printer includes a printing device, the printing device is configured to spray-print a dampening liquid and a color ink, and the dampening liquid is a transparent binding liquid, and the method includes:
acquiring image data;
and controlling the printing device to alternately spray and print the wetting liquid and the color ink on the printing stock for multiple times according to the image data so as to enable the wetting liquid and the color ink sprayed and printed on the printing stock to be alternately distributed and formed into a pattern.
Optionally, the controlling the printing apparatus to alternately spray the dampening liquid and the color ink on the printing material for a plurality of times according to the image data includes:
determining a print area on the substrate from the image data;
and controlling the printing device to alternately spray and print the wetting liquid and the color ink on the printing area for multiple times according to the image data.
Optionally, the controlling the printing device to alternately spray and print the wetting fluid and the color ink on the printing area for a plurality of times according to the image data includes:
controlling the printing device to alternately spray and print the wetting liquid and the color ink for a plurality of times according to the sequence of spraying and printing the wetting liquid and then spraying and printing the color ink;
and after the dampening liquid and the color ink are alternately sprayed and printed for multiple times, spraying and printing the dampening liquid again.
Optionally, the controlling the printing apparatus to alternately spray the dampening liquid and the color ink on the printing material for a plurality of times according to the image data includes:
controlling the printing device to spray and print the wetting fluid along a preset method according to the image data;
and controlling the printing device to jet and print the color ink in the opposite direction of the preset method according to the image data.
Optionally, the controlling the printing apparatus to alternately spray the dampening liquid and the color ink on the printing material for a plurality of times according to the image data includes:
controlling the printing device to successively spray and print the wetting liquid and the color ink along the preset method according to the image data;
and controlling the printing device to successively spray and print the wetting liquid and the color ink along the opposite direction of the preset method according to the image data.
Optionally, the printing device is further configured to jet-print a printing base solution;
before controlling the printing device to alternately spray the dampening liquid and the color ink on the printing area for a plurality of times according to the image data, the method further comprises:
and controlling the printing device to alternately spray the wetting liquid and the priming liquid on the printing stock so as to alternately distribute the wetting liquid and the priming liquid sprayed and printed on the printing stock.
Optionally, the controlling the printing apparatus to alternately spray the wetting liquid and the priming liquid on the printing material includes:
and controlling the printing device to alternately spray and print the wetting liquid and the priming liquid in the printing area.
Optionally, the controlling the printing apparatus to alternately spray the wetting liquid and the priming liquid on the printing material includes:
controlling the printing device to spray and print the wetting fluid along the preset method;
and controlling the printing device to jet and print the printing base liquid along the direction opposite to the preset method.
Optionally, the controlling the printing apparatus to alternately spray the wetting liquid and the priming liquid on the printing material includes:
controlling the printing device to successively spray and print the wetting liquid and the priming liquid along the preset method;
and controlling the printing device to successively spray and print the wetting liquid and the priming liquid along the opposite direction of the preset method.
In a second aspect, an embodiment of the present invention provides a digital printer, including:
at least one processor; and
a memory communicatively coupled to the at least one processor; wherein the content of the first and second substances,
the memory stores instructions executable by the at least one processor to enable the at least one processor to perform a digital printing method as provided by any of the embodiments of the present invention.
In a third aspect, an embodiment of the present invention provides a non-transitory computer-readable storage medium, where computer-executable instructions are stored, and when the computer-executable instructions are executed, the method for digital printing according to any embodiment of the present invention can be performed.
In a fourth aspect, an embodiment of the present invention provides a product printed by applying the digital printing method according to any embodiment of the present invention.
The beneficial effects of the embodiment of the invention are as follows: different from the situation in the prior art, the digital printing method, the digital printer and the storage medium provided by the embodiment of the invention can control the printing device for spraying the wetting liquid and the color ink to alternately spray the wetting liquid and the color ink on the printing stock for multiple times according to the acquired image data, wherein the wetting liquid is transparent bonding liquid, so that the wetting liquid layer and the color ink layer in the image printed on the printing stock are alternately distributed to form a pattern. Therefore, the color ink layer can be sufficiently contacted and sufficiently reacted with the adjacent wetting liquid layer, thereby increasing the bonding strength of the color ink layer and the wetting liquid layer. Therefore, the patterns printed by the digital printing method, the printer and the storage medium provided by the embodiment of the invention have high color fastness and are not easy to damage.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments of the present invention will be briefly described below. It is obvious that the drawings described below are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
FIG. 1 is a flow chart of a digital printing method according to an embodiment of the present invention;
FIG. 2 is a cross-sectional view of a substrate and its inkjet print pattern provided by an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a digital printer according to an embodiment of the present invention;
fig. 4a and 4b are schematic diagrams of an application of a digital printing method according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a digital printer according to an embodiment of the present invention;
fig. 6a and 6b are schematic diagrams of an application of a digital printing method according to an embodiment of the present invention;
fig. 7 is a schematic diagram of a hardware structure of a digital printer according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It should be noted that, if not conflicted, the various features of the embodiments of the invention may be combined with each other within the scope of protection of the invention. Additionally, while functional block divisions are performed in the device diagrams, with logical sequences shown in the flowcharts, in some cases, the steps shown or described may be performed in a different order than the block divisions in the device diagrams, or the flowcharts.
Unless defined otherwise, 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. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
The digital printing method comprises a dry printing method and a wet printing method, wherein the dry printing method comprises the steps of firstly spraying and printing a wetting liquid in a preset area of a printing stock (such as fabric, glass or metal plate materials and the like), spraying and printing a printing base liquid (such as white ink) in the preset area to form a printing base layer after the wetting liquid is dried, then spraying and printing color ink on the printing base layer to form a pattern, and drying to obtain the product. The wet printing method is that a large amount of wetting liquid is sprayed on a printing stock, then the printing base liquid is sprayed and printed on a preset area to form a printing base layer, then the color ink is sprayed and printed on the printing base layer to form a pattern, and the product is obtained after the pattern is dried. Compared with the dry printing method, the wet printing method has relatively simple process flow and the printed patterns are relatively soft.
In the prior art, the wet printing method is to spray and print the wetting liquid on the printing stock at one time, and then spray and print the base printing liquid and the color ink on the wetting liquid for multiple times, so as to ensure that the base printing liquid and the color ink of the subsequent spray printing can fully react with the wetting liquid, and the using amount of the wetting liquid is many times of the total amount of the base printing liquid and the color ink. On one hand, the usage amount of the existing wet-beating method wetting fluid is relatively high; on the other hand, as only one layer of wetting liquid is sprayed and printed on the surface of the printing stock, the bonding strength of the priming solution, the color ink and the wetting liquid sprayed and printed for a plurality of times in the following process is gradually weakened, and the color fastness of the printed pattern is not ideal. Furthermore, the drying time of the printed pattern is longer, generally 9-10 minutes, due to the larger amount of the dampening solution used.
The core of the digital printing method, the digital printer and the storage medium provided by the embodiment of the invention is as follows: the wetting liquid and the color ink (or the priming liquid) can be alternately printed on a printing stock, so that the wetting liquid layer and the color ink layer (or the priming liquid layer) in the printing pattern are alternately distributed, and the wetting liquid layer is arranged between the color ink layer (or the priming liquid layer), so that the color ink (or the priming liquid) can be fully contacted with the wetting liquid and fully reacted, and the bonding strength of the color ink layer (or the priming liquid layer) and the wetting liquid layer is increased. To facilitate the reader's understanding of the invention, reference will now be made to specific examples.
The digital printing method provided by the embodiment of the invention is applied to a digital printer, the digital printer comprises a printing device which is in communication connection with a controller, and the printing device is used for spraying and printing dampening solution and color ink. Referring to fig. 1, fig. 1 is a schematic flow chart of a digital printing method according to an embodiment of the present invention, as shown in fig. 1, the method includes the following steps:
s11, acquiring image data;
and S12, controlling the printing device to alternately spray and print the wetting liquid and the color ink on the printing stock for a plurality of times according to the image data to form a pattern.
When printing an image, the controller controls the printing device to spray and print the wetting liquid on the printing stock according to the image data, and then controls the printing device to spray and print the color ink on the wetting liquid, so that the wetting liquid and the color ink sprayed and printed on the printing stock are alternately distributed and a printing pattern is formed. In this embodiment, the number of times of the alternate jet printing is at least two, and a person skilled in the art can determine the number of times of the alternate jet printing according to an actual printing condition as long as an obvious effect of a printed pattern is ensured. Optionally, in some embodiments of the present invention, after the dampening solution and the color ink are alternately sprayed and printed for a plurality of times according to the sequence of spraying and printing the dampening solution and then spraying and printing the color ink, the dampening solution needs to be sprayed and printed on the printing material again; therefore, the outmost wetting liquid layer that is of printing the pattern, outmost wetting liquid play the effect of protective layer, also play waterproof effect, and the protection effect is better and durable, can make the colored ink in the printing pattern be difficult to by wearing and tearing.
Substrates in embodiments of the invention include, but are not limited to, fabrics, paper, leather, metal, glass, ceramics, and plastics, wherein the fabric may be a garment. Alternatively, in some embodiments, the wetting liquid may be a cationic resin liquid, and the color ink and the priming liquid may be an anionic resin liquid; the cationic resin type wetting liquid and the anionic resin type color ink and priming solution can react quickly, and the bonding strength between the cationic resin type wetting liquid and the anionic resin is high, so that the printed pattern has high color fastness; the printing ink has good flexibility and weather resistance, the printed pattern has good flexibility, and both stretchable and non-stretchable materials are suitable, and the printing ink is particularly suitable for printing patterns on fabrics (such as clothes and chemical fiber sweaters). Specifically, in order to avoid the influence of the fountain solution of the inkjet printing on the effect of the color ink layered combination, the fountain solution in this embodiment is a transparent combination solution, and the color ink and the priming solution will react with the combination solution, specifically, a transparent cationic resin solution.
In this embodiment, the color ink includes one or more of Cyan ink (Cyan), Magenta ink (Magenta), Yellow ink (Yellow), and blacK ink (blacK). The CMYK color set is four basic colors that are printed using different doses of multiple color inks to produce the desired color. Referring to fig. 2, fig. 2 is a cross-sectional view of a printing material and a spray pattern thereof according to an embodiment of the present invention, as shown in fig. 2, a wetting liquid layer 002 and a color ink layer 003 are alternately printed on the printing material 001 in sequence; the color ink layer 003 may be an ink dot of one basic color, or may be formed by combining a plurality of ink dots. In other embodiments, the color inks may further include spot color inks, such as sapphire, pearl blue, scarlet, fluorescent yellow, gold, and silver inks.
For example, a certain amount of magenta ink and yellow ink can be sprayed to print an orange pattern, and when the orange pattern is printed, the printing device can be controlled to spray the dampening solution, the magenta ink and the yellow ink for multiple times in the order of spraying the dampening solution, the magenta ink and the yellow ink in sequence, and finally spray the dampening solution; the ink jet printing is circulated in such a way that the color ink layer 003 formed by the two kinds of ink is distributed between every two layers of dampening water, and at this time, the color ink layer 003 comprises red ink dots and yellow ink dots. In other embodiments, when printing the orange pattern, the printing apparatus may be controlled to spray the dampening solution, the magenta ink, the dampening solution, and the yellow ink for a plurality of times in the order of spraying the dampening solution, the magenta ink, the dampening solution, and the yellow ink in sequence, and finally spray the dampening solution again, and repeat the spraying, so that a layer of the dampening solution is distributed between each layer of the basic color ink, and at this time, the color ink layer 003 includes one of the yellow ink or the magenta ink.
The digital printing method provided by the embodiment of the invention can spray the wetting liquid for multiple times, so that each layer of color ink in the printed pattern can be fully contacted with the wetting liquid, and compared with the printing method for spraying and printing only one layer of wetting liquid in the prior art, the digital printing method provided by the embodiment of the invention can increase the color fastness of the printed pattern on the printed material 001 on the basis of reducing the using amount of the wetting liquid. For example, the amount of color ink and fountain solution used in the present invention can be about 1:1 when printing a pattern. Also, the reduction in the amount of dampening solution used may reduce the drying time of the printed pattern. For example, in order to dry the printed pattern sufficiently, the drying temperature of the printed pattern on the printing stock 001 can be controlled to be 120-150 ℃, and the drying time can be controlled to be 2-3 minutes; wherein, the drying mode of the printed pattern can be hot air drying.
In the prior art, regardless of the occupied printing area of the printing pattern, the wetting fluid is usually sprayed and printed on the whole surface of the printing stock 001, and the wetting fluid cannot be sprayed and printed according to needs, so that a large amount of waste of the wetting fluid is caused. In this embodiment, to avoid unnecessary waste of the dampening solution, the controller may determine a print area on the substrate based on the image data, and control the printing device to alternately spray the dampening solution and the color ink only in the print area a plurality of times based on the image data. Specifically, the controller can spray the wetting liquid, the color ink and the priming solution by controlling the digital spray head, and accurate spraying according to requirements can be realized.
In some embodiments, the step S12 further includes the following steps:
s121, controlling a printing device to spray and print a wetting liquid along a preset method according to the image data;
and S122, controlling the printing device to spray and print color ink in the opposite direction of the preset method according to the image data.
In this embodiment, the printing apparatus includes a first nozzle and a second nozzle, where the first nozzle is used for spraying and printing the dampening solution, and the second nozzle is used for spraying and printing the color ink. Referring to fig. 3, fig. 3 is a schematic structural diagram of a digital printer according to an embodiment of the present invention, as shown in fig. 3, the digital printer includes a main body 10, a first nozzle 11 and at least one second nozzle 12 disposed on the main body 10, the first nozzle 11 and the second nozzle 12 are arranged in a row, and the first nozzle 11 is located on one side of the second nozzle 12.
Specifically, referring to fig. 4a and 4B, the first nozzle 11 may be disposed at the front end of the preset method, when printing an image, the first nozzle 11 enters the printing region 01 to print a first line first, the first nozzle 11 sprays the dampening solution a along the preset method (arrow direction in fig. 4 a), and at this time, the second nozzle 12 does not spray the color ink B; after the first nozzle 11 sprays the dampening solution a once on the first line, the second nozzle 12 sprays the color ink B on the first line in the reverse direction of the preset method (arrow direction in fig. 4B), and the first nozzle 11 does not spray the dampening solution a. In this embodiment, the first and second heads 11 and 12 may reciprocate in the first line to alternately print the dampening liquid a and the color ink B. The number of times of reciprocating (or alternate printing) may be set according to actual circumstances. When the pattern of the first line is printed, the first nozzle 11 and the second nozzle 12 enter the next line for spray printing, and the first nozzle 11 and the second nozzle 12 alternately spray-print the wetting liquid a and the color ink B line by line to complete the spray printing of the whole image printing area 01. In this embodiment, the number of times the dampener solution A and color ink B are alternately jetted per line may be the same.
In some embodiments, the step S12 further includes the following steps:
s121', controlling the printing device to successively spray and print the wetting liquid and the color ink along a preset method according to the image data;
and S122', controlling the printing device to successively spray and print the wetting liquid and the color ink along the opposite direction of the preset method according to the image data.
In this embodiment, the printing apparatus includes a first nozzle for spraying the dampening solution and a second nozzle for spraying the color ink, wherein the number of the first nozzles is at least two, and two first nozzles of the at least two first nozzles are respectively disposed on two sides of the second nozzle.
Referring to fig. 5, fig. 5 is a schematic structural diagram of a digital printer according to another embodiment of the present invention, as shown in fig. 5, the number of the first nozzles 11 is at least two, one first nozzle 11a of the at least two first nozzles 11 is located on one side of the second nozzle 12, and another first nozzle 11b of the at least two first nozzles 11 is located on the other side of the second nozzle 12; at this time, the controller may control the first and second nozzles 11a and 12 located at one side of the second nozzle 12 to successively spray the dampening liquid a and the color ink B along a preset method according to the image data; and controlling the first nozzle 11B and the second nozzle 12 positioned at the other side of the second nozzle 12 to successively spray the dampening solution A and the color ink B along the opposite direction of the preset method according to the image data.
Referring to fig. 6a, in the present embodiment, during printing, the first nozzle 11a located at the front end of the predetermined method (arrow direction in fig. 6 a) enters the printing region 01 first, and sprays the wetting fluid a in the first row along the predetermined method; subsequently, the second head 12 enters the printing area 01, and prints the color ink B on the dampening solution a printed by the first head 11a by spraying along a predetermined method, and at this time, the first head 11B does not print the dampening solution a. After the first line is printed with fountain solution A and color ink B. The first nozzle 11B and the second nozzle 12 continue to print the wetting fluid a and the color ink B on the first row in the opposite direction of the preset method (arrow direction in fig. 6B), at this time, the first nozzle 11B is located at the front end of the printing direction shown by the arrow in fig. 6B, i.e. the first nozzle 11B may first enter the printing region 01 to print the wetting fluid a in the arrow direction, and then the second nozzle 12 enters the printing region 01 to print the color ink B on the wetting fluid a in the arrow direction; at this time, the first head 11a located at the rear end in the printing direction does not eject the wetting fluid a. In this embodiment, the second head 12 may jet the color ink B in the preset method (or the reverse direction of the preset method) while the first head 11a jets the dampening solution a in the preset method (or the reverse direction of the preset method) in the first head 11B. Therefore, the digital printing method provided by the embodiment can further improve the efficiency of alternately spraying the dampening solution a and the color ink B.
For the printing stock with darker color, a layer of light-colored ground color needs to be sprayed and printed in advance, and then the colored pattern is sprayed and printed on the ground color, so that the situation that the color of the colored pattern is covered by the color of the printing stock and the color of the pattern cannot be reflected is avoided. Therefore, before the color ink B is ejected, it is also necessary to eject a light-colored priming solution onto the substrate, wherein the priming solution may be white ink, and the white ink may be an anionic resin solution. Therefore, in some embodiments, the printing apparatus is further configured to spray printing the printing base liquid, and before the step S12, the digital printing method further includes the following steps:
and S13, controlling the printing device to alternately spray the wetting liquid and the priming liquid on the printing stock so as to alternately distribute the wetting liquid and the priming liquid sprayed and printed on the printing stock.
In some embodiments of the present invention, the printing apparatus further comprises a third spray head for spraying a dampening liquid and a fourth spray head for spraying a printing primer liquid. Optionally, in some embodiments, the third spray head and the fourth spray head may be arranged side by side, and the number of the third spray head and the fourth spray head may be one or more. The controller may determine a print area on the substrate based on the image data and control the third and fourth nozzles to alternately spray the fountain solution and the primer solution only in the print area. In some embodiments, the third nozzle and the fourth nozzle may be mounted on the same body 10 side by side with the first nozzle 11 and the second nozzle 12, or may be separately mounted on another body 10.
In some embodiments, one or more third spray heads are located on the same side of the fourth spray head. At this time, the controller may control the third nozzle to spray the dampening solution in the preset direction, and then control the fourth nozzle to spray the priming solution in the opposite direction of the preset direction, so as to alternately spray the dampening solution and the priming solution back and forth for multiple times, thereby alternately distributing the dampening solution and the priming solution to increase the bonding strength of the priming solution and the dampening solution.
Specifically, in the above example, the third nozzle may first enter the printing region to print the dampening solution along a predetermined method, and at this time, the fourth nozzle does not print the color ink; and after the third nozzle sprays the wetting liquid once on the first line, the fourth nozzle sprays the printing base liquid on the first line along the reverse direction of the preset method, and at the moment, the third nozzle does not spray the wetting liquid. In this embodiment, the third and fourth nozzles may reciprocate in the first row to alternately print the wetting fluid and the priming fluid. The number of times of reciprocating (or alternate printing) may be set according to actual circumstances. And when the wetting liquid and the priming liquid in the first line are printed, the third spray head and the fourth spray head enter the next line for spray printing, and the third spray head and the fourth spray head finish spray printing of the priming liquid in the whole image printing area by alternately spray printing the wetting liquid and the priming liquid line by line. In this embodiment, the number of alternating jet prints of each row of dampening solution and priming solution may be the same.
In other embodiments, the number of the third spray heads is at least two, and two of the at least two third spray heads are respectively located at two sides of the fourth spray head. At this time, the controller may control the third nozzle and the fourth nozzle located at one side of the fourth nozzle to successively spray the dampening solution and the priming solution along a preset method, and control the third nozzle and the fourth nozzle located at the other side of the fourth nozzle to successively spray the dampening solution and the priming solution along a direction opposite to the preset method.
For example, in the above example, two third nozzles are respectively located at the left and right sides of the fourth nozzle, when the digital printer needs to print from left to right in the first row of the printing area, the arrangement direction of the nozzles is controlled to be consistent with the printing direction, the third nozzle located at the right side enters the printing area from left to right to print the dampening solution, the fourth nozzle then enters the printing area and prints the printing base solution on the dampening solution from left to right, and at this time, the third nozzle located at the left side does not print the dampening solution. After the first line is sprayed and printed with the wetting liquid and the priming liquid. The third sprayer and the fourth sprayer continuously spray and print the wetting liquid and the priming liquid on the first row from right to left, at the moment, the third sprayer on the left side is positioned at the front end of the printing direction, namely the third sprayer on the left side can firstly enter the printing area to spray and print the wetting liquid from right to left, and then the fourth sprayer enters the printing area to spray and print the priming liquid on the wetting liquid sprayed and printed by the third sprayer on the left side from right to left; at this time, the third nozzle on the right side is located at the rear end in the printing direction, and does not eject the dampening solution. In this embodiment, in the process of printing the wetting liquid by the third nozzle from left to right (or from right to left), the fourth nozzle may also print the printing base liquid from left to right (or from right to left). Therefore, the digital printing method provided by the embodiment can further improve the efficiency of alternately spraying and printing the wetting liquid and the priming liquid.
The digital printing method provided by the embodiment of the invention can alternately spray and print the wetting liquid and the color ink after alternately spraying and printing the wetting liquid and the priming liquid, so that the wetting liquid and the priming liquid in the printed pattern are alternately distributed, and the wetting liquid and the color ink are also alternately distributed. Each layer of priming solution and each layer of color ink in the printed pattern can be in sufficient contact with the fountain solution and react sufficiently. Therefore, the base printing liquid and the color ink in the printed pattern have high bonding strength with the wetting liquid, the printed pattern has high color fastness, and the printed pattern is not easy to damage in the washing or using process. Meanwhile, the ratio of the consumption of the priming solution and the color ink to the consumption of the wetting solution in the digital printing method provided by the embodiment of the invention is about 1:1, so that the consumption of the wetting solution is greatly reduced. The reduction of the amount of the wetting liquid can save raw materials on one hand; on the other hand, the drying time of the printed pattern can be reduced, and the printing period is shortened.
Referring to fig. 7, fig. 7 is a schematic diagram of a hardware structure of a digital printer according to an embodiment of the present invention. Fig. 7 illustrates an example of a processor 101. The processor 101 and the memory 102 may be connected by a bus or other means, and fig. 7 illustrates the connection by a bus as an example. The memory 102, which is a non-volatile computer-readable storage medium, may be used to store non-volatile software programs, non-volatile computer-executable programs, and modules, such as program instructions/modules corresponding to the digital printing method in the embodiments of the present invention. The processor 101 executes various functional applications of the server and data processing, i.e., a digital printing method implementing the above-described method embodiments, by running the nonvolatile software programs, instructions, and modules stored in the memory 102.
The memory 102 may include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created according to use of the digital printing apparatus, and the like. Further, the memory 102 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device. In some embodiments, the memory 102 may optionally include memory located remotely from the processor 101, which may be connected to the routing device of the mobile robot via a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The one or more modules are stored in the memory 102 and, when executed by the at least one processor 101, perform the digital printing method of any of the above-described method embodiments, e.g., performing the above-described method steps S11-S12 of fig. 1.
The product can execute the method provided by the embodiment of the invention, and has corresponding functional modules and beneficial effects of the execution method. For technical details that are not described in detail in this embodiment, reference may be made to the method provided by the embodiment of the present invention.
The electronic device of the embodiment of the present invention exists in various forms, including but not limited to a digital printer, and other electronic devices with a printing function.
Embodiments of the present invention provide a non-transitory computer-readable storage medium storing computer-executable instructions for an electronic device to perform a method for routing a mobile robot in any of the above-described method embodiments, for example, performing method steps S11-S12 in fig. 1 described above.
Embodiments of the present invention provide a computer program product comprising a computer program stored on a non-transitory computer-readable storage medium, the computer program comprising program instructions which, when executed by a computer, cause the computer to perform a method of path selection for a mobile robot in any of the above-described method embodiments, e.g. performing method steps S11-S12 in fig. 1 as described above.
The embodiment of the invention also provides a product printed by any one of the digital printing method embodiments, wherein the product is printed with a target image, and the product comprises but is not limited to paper, leather, metal, glass, ceramic, plastic, wood and other materials.
The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment.
Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment can be implemented by software plus a general hardware platform, and certainly can also be implemented by hardware. It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by hardware related to instructions of a computer program, which can be stored in a computer readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. The storage medium may be a magnetic disk, an optical disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), or the like.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; within the idea of the invention, also technical features in the above embodiments or in different embodiments may be combined, steps may be implemented in any order, and there are many other variations of the different aspects of the invention as described above, which are not provided in detail for the sake of brevity; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (11)
1. A digital printing method is applied to a digital printer and is characterized in that the digital printer comprises a printing device, the printing device is used for spraying and printing a wetting liquid and a color ink, the wetting liquid is a transparent combination liquid, and the method comprises the following steps:
acquiring image data;
and controlling the printing device to alternately spray and print the wetting liquid and the color ink on the printing stock for multiple times according to the image data so as to enable the wetting liquid and the color ink sprayed and printed on the printing stock to be alternately distributed and formed into a pattern.
2. The digital printing method according to claim 1, wherein said controlling the printing device to alternately spray the dampening solution and the color ink on the printing material a plurality of times according to the image data comprises:
determining a print area on the substrate from the image data;
and controlling the printing device to alternately spray and print the wetting liquid and the color ink on the printing area for multiple times according to the image data.
3. The digital printing method according to claim 2, wherein said controlling said printing device to alternately spray said dampening solution and said color ink a plurality of times in said printing area according to said image data comprises:
controlling the printing device to alternately spray and print the wetting liquid and the color ink for a plurality of times according to the sequence of spraying and printing the wetting liquid and then spraying and printing the color ink;
and after the dampening liquid and the color ink are alternately sprayed and printed for multiple times, spraying and printing the dampening liquid again.
4. The digital printing method according to claim 2, wherein said controlling the printing device to alternately spray the dampening solution and the color ink on the printing material a plurality of times according to the image data comprises:
controlling the printing device to spray and print the wetting fluid along a preset method according to the image data;
and controlling the printing device to jet and print the color ink in the opposite direction of the preset method according to the image data.
5. The digital printing method according to claim 2, wherein said controlling the printing device to alternately spray the dampening solution and the color ink on the printing material a plurality of times according to the image data comprises:
controlling the printing device to successively spray and print the wetting liquid and the color ink along the preset method according to the image data;
and controlling the printing device to successively spray and print the wetting liquid and the color ink along the opposite direction of the preset method according to the image data.
6. The digital printing method according to any of claims 2-5, wherein the printing device is further adapted to spray print a printing primer;
before controlling the printing device to alternately spray the dampening liquid and the color ink on the printing area for a plurality of times according to the image data, the method further comprises:
and controlling the printing device to alternately spray the wetting liquid and the priming liquid on the printing stock so as to alternately distribute the wetting liquid and the priming liquid sprayed and printed on the printing stock.
7. The digital printing method according to claim 6, wherein the controlling the printing device to alternately spray the dampening solution and the priming solution on the printing substrate comprises:
and controlling the printing device to alternately spray and print the wetting liquid and the priming liquid in the printing area.
8. The digital printing method according to claim 6, wherein the controlling the printing device to alternately spray the dampening solution and the priming solution on the printing substrate comprises:
controlling the printing device to spray and print the wetting fluid along the preset method;
and controlling the printing device to jet and print the printing base liquid along the direction opposite to the preset method.
9. The digital printing method according to claim 6, wherein the controlling the printing device to alternately spray the dampening solution and the priming solution on the printing substrate comprises:
controlling the printing device to successively spray and print the wetting liquid and the priming liquid along the preset method;
and controlling the printing device to successively spray and print the wetting liquid and the priming liquid along the opposite direction of the preset method.
10. A digital printer, comprising:
at least one processor; and
a memory communicatively coupled to the at least one processor; wherein the content of the first and second substances,
the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the digital printing method of any of claims 1-9.
11. A non-transitory computer-readable storage medium storing computer-executable instructions that, when executed, perform the digital printing method of any of claims 1-9.
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| CN202010441784.7A CN111532049A (en) | 2020-05-22 | 2020-05-22 | Digital printing method, digital printer and storage medium |
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Application publication date: 20200814 |