CN110816100A - Printing method, printing apparatus and printed product - Google Patents
Printing method, printing apparatus and printed product Download PDFInfo
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- CN110816100A CN110816100A CN201911107561.0A CN201911107561A CN110816100A CN 110816100 A CN110816100 A CN 110816100A CN 201911107561 A CN201911107561 A CN 201911107561A CN 110816100 A CN110816100 A CN 110816100A
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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
- B41M5/0047—Digital printing on surfaces other than ordinary paper by ink-jet printing
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- 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
- B41J11/002—Curing or drying the ink on the copy materials, e.g. by heating or irradiating
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- 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
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- 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
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- 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
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- 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
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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
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- Engineering & Computer Science (AREA)
- Quality & Reliability (AREA)
- Textile Engineering (AREA)
- Ink Jet (AREA)
Abstract
The embodiment of the invention relates to the field of ink-jet printing, and discloses a printing method, printing equipment and a printed product. The method comprises the following steps: laying a printing substrate on the bedplate; heating the printing substrate to a preset temperature range; and controlling the printing module to correspond to the printing base material position, and enabling the printing module and the bedplate to cooperate together to execute the printing process. The printing module comprises a first spray printing module and a second spray printing module, and the direction of the first spray printing module pointing to the second spray printing module is the positive direction of the first direction; in the printing process, the bedplate moves forwards along the first direction, the printing module scans back and forth along the second direction, and after the first spray printing module starts scanning for a set interval duration, the two spray printing modules synchronously scan back and forth along the second direction. The printing method can quickly dry the bottom ink at the self temperature of the printing substrate, so that the waiting time for printing upper patterns or characters is shortened, the whole printing period is shortened, and the printing efficiency is improved.
Description
[ technical field ] A method for producing a semiconductor device
The embodiment of the invention relates to the technical field of ink-jet printing, in particular to a printing method, printing equipment and a printed product.
[ background of the invention ]
When a printing device performs color printing on a printing substrate (such as cloth, paper, PCB, FPC and the like) with a dark surface, color ink is often difficult to directly perform color imaging on the surface of the printing substrate, and even if the color ink is imaged, the imaging brightness and the display effect of the color ink are difficult to meet the industrial requirements. To overcome this drawback, the following methods are generally adopted in the industry: firstly, printing a white bottom layer on the surface of the printing base material with the dark color, and then printing colorful characters or patterns after the white ink is completely dried. In addition, when white characters or patterns need to be printed on a printing substrate with a white surface, the industry also adopts the steps of firstly printing a dark color bottom layer and then printing the white characters or patterns on the dark color bottom layer.
The inventor of the invention finds out that: taking a printing substrate with a dark surface as an example, in the actual printing process, the drying of the white ink generally requires about 20 to 30 seconds, so that the whole period for completing the printing of the color characters or patterns is long, the printing efficiency is low, and the industrial production is not facilitated; in addition, there is the above-mentioned trouble in printing white characters or patterns on the printing substrate with white surface color.
[ summary of the invention ]
The embodiment of the invention aims to provide a printing method, printing equipment and a printing product, and aims to solve the technical problems of long overall period and low printing efficiency when characters or patterns with the same or similar colors to those of the surface of a printing base material are printed on the surface of the printing base material at present.
The embodiment of the invention adopts the following technical scheme for solving the technical problems:
a method of printing, comprising:
laying a printing substrate on the bedplate;
heating the printing substrate to a preset temperature range;
the control comprises that the printing module corresponds to the position of the printing substrate, and the printing module and the bedplate are matched together to execute the printing process to obtain a printed product;
the printing module comprises a first spray printing module and a second spray printing module which are arranged in parallel along a first direction, and the direction of the first spray printing module pointing to the second spray printing module is the positive direction of the first direction;
in the process that the printing module and the bedplate are matched together to execute printing, the bedplate moves along the positive direction of the first direction, the printing module scans back and forth above the printing substrate along a second direction intersecting the first direction, and after the first jet printing module starts scanning for a set interval duration, the second jet printing module and the first jet printing module synchronously scan back and forth along the second direction.
As a further improvement of the above technical solution, the step of the printing module and the platen cooperating together to execute the printing process includes:
s31: the first jet printing module scans back and forth at least once along the second direction above the printing substrate to form a bottom layer unit, and then the platen is driven to move for a set distance along the forward direction of the first direction;
s32: repeating the step S31 until the bottom layer unit reaches the position corresponding to the second jet printing module;
s33: the second jet printing module and the first jet printing module synchronously scan back and forth at least once along the second direction above the printing substrate, and then the platen is driven to move for a set distance along the positive direction of the first direction;
s34: and repeating the step S33 until the printed product is obtained.
As a further improvement of the above technical solution, a gap between the first jet printing module and the second jet printing module is twice a width of the first jet printing module along the first direction.
As a further improvement of the above technical solution, the step of heating the printing substrate to a preset temperature range includes:
driving a pressing module heated to a set temperature range to move to the surface of the printing substrate, and pressing the printing substrate for a preset time range; wherein the content of the first and second substances,
the set temperature range is 100-180 ℃, and the preset temperature range is 45-55 ℃.
As a further improvement of the above technical means, before the step of laying the printing substrate on the platen, the printing method further comprises the steps of:
preheating the bedplate to a preset temperature range, wherein the preset temperature range is 45-50 ℃.
As a further improvement of the above technical solution, the printing substrate is a cloth, and after the step of laying the printing substrate on the platen, the printing method further includes the steps of:
and driving the pressing mechanism to pull the printing substrate to be flatly paved on the bedplate and driving the pressing mechanism to press the printing substrate on the bedplate.
As a further improvement of the above technical solution, the printing method further includes:
turning on a drying lamp;
the drying lamp is used for drying the ink jet printed on the printing substrate by the first jet printing module and the second jet printing module.
The embodiment of the invention also adopts the following technical scheme for solving the technical problems:
a printing apparatus comprising:
a platen for carrying a printing substrate;
a platen heating module for heating the print substrate and/or platen prior to a printing process;
the printing module comprises a first spray printing module and a second spray printing module which are arranged in parallel along a first direction, the direction of the first spray printing module pointing to the second spray printing module is the positive direction of the first direction, and the printing module is used for completing the printing process through the cooperation of the first spray printing module, the second spray printing module and the bedplate;
the platen driving mechanism is used for driving the platen to move between the pressing module and the printing module and driving the platen to move along the forward direction of the first direction in the printing process.
As a further improvement of the above technical solution, the pressing module includes a pressing block, a heating tube and a temperature control mechanism; wherein the content of the first and second substances,
the heating tube is used for being electrified to generate heat and transferring the heat to the pressing block;
the pressing block is used for receiving heat transferred from the heating tube and transferring the heat to an external printing substrate;
the temperature control mechanism is respectively connected with the pressing block and the heating tube and is used for maintaining the temperature of the pressing block within a set temperature range.
The embodiment of the invention also adopts the following technical scheme for solving the technical problems:
a printed article made according to the printing method described above.
The invention has the beneficial effects that:
the printing method provided by the embodiment of the invention can be applied to printing equipment, and the printing method comprises the following steps: and paving the printing base material on the bedplate, and heating the printing base material to a preset temperature range to ensure that the printing base material has a certain temperature. The printing module comprises a first jet printing module and a second jet printing module which are arranged in parallel along a first direction, and the direction of the first jet printing module pointing to the second jet printing module is the forward direction of the first direction. In the printing process, the bedplate moves along the positive direction of the first direction, and the first spray printing module and the second spray printing module scan back and forth in the second direction to finish printing. The first jet printing module prints a set interval duration before the second jet printing module, and the bottom layer printed by the first jet printing module is dried at the temperature of the printing substrate in the set interval duration so that the second jet printing module scans on the bottom layer to obtain a printed product.
Taking printing color characters or patterns on a printing substrate with a dark surface as an example, the first jet printing module is a white ink jet printing module, the second jet printing module is a color ink jet printing module, the white ink jet printing module can form a white bottom layer on the printing substrate before the white ink jet printing module completely dries a local part of the white bottom layer, and the color ink jet printing module can start jet printing the characters or the patterns. Similarly, when white characters or patterns are printed on a printing substrate with a white surface, the first spray printing module is a color ink spray printing module, the second spray printing module is a white ink spray printing module, the color ink spray printing module can form a color bottom layer on the printing substrate before the color ink spray printing module completely dries the local part of the color bottom layer, and the white ink spray printing module can start to spray and print the characters or the patterns.
In summary, when characters or patterns with the same or similar color as or to the surface color of the printing substrate are printed on the surface of the printing substrate, the printing method provided by the embodiment of the invention can quickly dry the bottom ink at the self temperature of the printing substrate, so as to shorten the waiting time for printing the upper patterns or characters, thereby shortening the whole printing period and improving the printing efficiency. And the printing process of the patterns or characters and the printing process of the bottom layer are almost simultaneously carried out, so that the whole printing period is further shortened.
[ description of the drawings ]
One or more embodiments are illustrated in drawings corresponding to, and not limiting to, the embodiments, in which elements having the same reference number designation may be represented as similar elements, unless specifically noted, the drawings in the figures are not to scale.
FIG. 1 is a schematic flow chart of a printing method according to an embodiment of the present invention;
fig. 2 is a schematic diagram illustrating the movement of the platen and the printing module during the printing process according to the printing method of the present invention.
[ detailed description ] embodiments
In order to facilitate an understanding of the invention, the invention is described in more detail below with reference to the accompanying drawings and specific examples. It should be noted that when an element is referred to as being "fixed to"/"mounted to" another element, it can be directly on the other element or one or more intervening elements may be present therebetween. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may be present. The terms "vertical," "horizontal," "left," "right," "inner," "outer," and the like as used herein are for descriptive purposes only.
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.
Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.
In this specification, the term "mounting" includes fixing or limiting a certain element or device to a specific position or place by welding, screwing, clipping, adhering, etc., the element or device may be fixed or movable in a limited range in the specific position or place, and the element or device may be removed or not after being fixed or limited to the specific position or place, and is not limited in the embodiment of the present invention.
The embodiment of the invention provides a printing method, which can realize that white ink and color ink are almost simultaneously printed on the same printing base material so as to shorten the period of printing color patterns or characters on a dark color printing base material; the invention also provides a printing device applying the method, and the printing device can shorten the period of printing color patterns or characters on the printing base material with the dark surface and the period of printing white patterns or characters on the printing base material with the white surface by applying the printing method. For ease of understanding, the following description will first be made of the structure of a printing apparatus to which the method is applied.
For the printing equipment, the material spreading station, the pressing station and the printing station are arranged, and the printing equipment comprises a platen, a platen driving mechanism, a pressing module, a pressing driving mechanism, a printing module and a printing driving mechanism. Wherein, the platen is used for bearing the printing substrate. The platen driving mechanism is connected with the platen and used for driving the platen to move among the material spreading station, the pressing station and the printing station and driving the platen to move back and forth from the printing station along a first direction. The pressing module is arranged at the pressing station and used for heating the printing substrate before printing; and a pre-heat treatment for pre-heating the surface of the platen before the platen carries the printing substrate. The pressing driving mechanism is connected with the pressing module and is used for driving the pressing module to be close to or far away from the bedplate. The printing module is arranged on the printing station and used for scanning back and forth along a second direction above the printing substrate and matching with the movement of the bedplate to complete the printing process when the printing substrate is positioned on the printing module, so that a printed product is obtained. The printing driving mechanism is connected with the printing module and used for driving the printing module to reciprocate along the second direction so as to realize the back and forth scanning of the printing substrate on the bedplate. It should be noted that the positive direction of the first direction is the advancing direction of the printing substrate in the printing process, the negative direction of the first direction is just opposite to the positive direction of the first direction, the direction is the moving direction of the printing substrate from the spreading station to the pressing station, and the second direction is the advancing direction of the printing module in the printing process; in this embodiment, the second direction is perpendicular to the first direction, and it is understood that in other embodiments of the present invention, the second direction may intersect the first direction at other angles.
With respect to the platen, the surface of the platen is rectangular in shape, and a print substrate can be supported on the surface.
Regarding the platen driving mechanism, in this embodiment, the platen driving mechanism includes a motor, a screw rod, and a nut installed on the platen, and the platen driving mechanism can drive the platen to move along a set direction, so that the platen reciprocates among the material spreading station, the pressing station, and the printing station, and moves along a first direction from the printing station. It is understood that in other embodiments of the present invention, the platen driving mechanism may also be a linear motor or a cylinder or other power device such as a combination of a motor, a pulley, and a belt, which are not illustrated herein.
About the pressure scalds module, it includes pressure scalds piece, heating tube and temperature control mechanism. Specifically, the heating tube can be electrified to generate heat and transfer the heat to the pressing block. The platen block is capable of receiving heat transferred from the heat pipe and transferring the received heat to the print substrate and/or platen to heat the print substrate and/or platen. The temperature control mechanism comprises a temperature sensor and a controller, wherein the temperature sensor is used for detecting the external temperature of the pressing block, the controller is respectively connected with the controller and the heating tube, the heating tube can be controlled by the controller to be electrified and heated, and whether the heating tube is electrified or not is adjusted according to the value detected by the temperature sensor, so that the temperature of the pressing block is maintained in a set temperature range.
Regarding the pressing driving mechanism, in this embodiment, it includes a motor, a lead screw and a nut installed on the pressing module, and the pressing driving mechanism can drive the pressing module to move in a direction perpendicular to the platen to approach or move away from the platen. It is understood that in other embodiments of the present invention, the pressing driving mechanism may also be a linear motor, an oil cylinder, or other power devices, which are not illustrated herein.
Regarding the printing module, it includes the mount pad, installs in the first jet printing module and the second jet printing module of above-mentioned mount pad to and install in the drying lamp of above-mentioned mount pad. The first spray printing module comprises more than two first spray heads which are arranged in parallel along a second direction; the second spray printing module corresponds to the first spray printing module and comprises more than two second spray heads which are arranged in parallel along a second direction. The first jet printing module and the second jet printing module are arranged in parallel along the first direction and have a certain gap, in the embodiment, the gap is twice of the width of the first jet printing module (or the second jet printing module) along the first direction, and the direction of the first jet printing module pointing to the second jet printing module is the same as the positive direction of the first direction. The drying lamp is used for drying the ink which is jetted and printed on the printing substrate by the first jet printing module and the second drying module in the printing process.
Regarding the printing driving mechanism, in this embodiment, it includes a motor, a lead screw and a nut installed on the printing module, and the printing driving mechanism can drive the printing module to reciprocate along the second direction to complete the scanning printing of the second direction of the printing substrate. It is understood that in other embodiments of the present invention, the print driving mechanism may also be a linear motor, an oil cylinder, or other power devices, which are not illustrated herein.
Taking a cloth as an example, the printing method is described with reference to the structure of the printing apparatus, please refer to fig. 1 and fig. 2, which respectively show a flow chart of the printing method and a schematic diagram of the directions in which the platen 100 and the printing module 200 travel during printing, and the printing method includes the following steps:
s0: heating the pressing block to a set temperature range. Firstly, electrifying a heating tube to transfer heat to a pressing block; then, the temperature of the pressing block is maintained in the set temperature range through the temperature control mechanism. In this embodiment, the set temperature range is 100 ℃ to 180 ℃.
S1: the printing substrate is laid down on a platen. Firstly, driving a bedplate to a material spreading station through a bedplate driving mechanism; the print substrate is then laid on the surface of the platen by an external mechanism. Wherein, this lay printing substrate spraying on platen surface has treatment fluid, the printing of white ink of can being convenient for after the treatment fluid is dry adheres to, and in this embodiment, this treatment fluid specifically includes: 60 to 80 percent of water, 20 to 50 percent of curing agent, 10 to 25 percent of bonding agent and 5 to 15 percent of anti-seepage agent.
S2: the printing substrate is heated to a predetermined temperature range. Firstly, a platen driving mechanism drives a platen to a pressing station; then, the pressing driving mechanism drives the pressing module to move to the surface of the printing substrate so as to iron and heat the printing substrate within a preset time range, so that the printing substrate is kept within the preset temperature range, wherein in the embodiment, the preset time range is 7-20 seconds, and the preset temperature range is 45-55 ℃; and then, the pressing driving mechanism drives the pressing module to reset. The ironing and heating process can accelerate the drying speed of the treatment liquid on the printing substrate, so that the white ink can be conveniently attached in the subsequent printing process; on the other hand, the plush on the surface of the cloth can be pressed and ironed to be smooth so as to facilitate the subsequent printing process; on the other hand, the printing substrate can be heated to be at a higher temperature, so that the white ink can be quickly dried by the printing substrate through the residual temperature of the printing substrate in the subsequent printing process. In addition, the temperature range of 45 ℃ to 55 ℃ belongs to a safe temperature range, which can not burn the printing base material on one hand, and on the other hand, is relatively safe when the printing base material needs to be touched by workers due to work requirements.
S3: and controlling the printing modules comprising at least two groups of spray printing modules to correspond to the printing substrate, and enabling the printing modules and the bedplate to cooperate together to execute the printing process so as to obtain a printed product. Firstly, a platen driving mechanism drives a platen to a printing station so as to enable a printing module to correspond to a printing substrate; then, the platen driving mechanism drives the platen to move along the direction a (fig. 2), i.e. the forward direction of the first direction, the printing driving mechanism drives the printing module to scan back and forth along the direction b above the printing substrate, i.e. the back and forth scanning along the second direction, and the platen and the printing module cooperate to complete the printing process on the printing substrate. It is noted that the first inkjet printing module starts scanning before the second inkjet printing module, and after the first inkjet printing module starts scanning for a set interval duration, the second inkjet printing module and the first inkjet printing module synchronously scan back and forth along the second direction, where the set interval duration is 5 to 7 seconds, preferably 6 seconds.
Specifically, referring to fig. 2, the first inkjet printing module 210 is a white ink inkjet printing module, and the second inkjet printing module 220 is a color ink inkjet printing module. The first inkjet printing module 210 scans and prints from above the printing substrate back and forth once to form a first white bottom layer unit. Then, the platen 100 moves a first inkjet printing module 210 in the direction a with the printing substrate driven by the platen driving mechanism, and then the first inkjet printing module 210 scans back and forth from above the printing substrate in the direction b once to form a second white bottom layer unit. Then, the platen is driven by the platen driving mechanism to move a first inkjet printing module along the direction a continuously for the width of the direction, and then the first inkjet printing module 210 scans back and forth from above the printing substrate along the direction b once to form a third white bottom layer unit. Next, the platen further moves by the width of a first jet printing module along the direction a with the printing substrate driven by the platen driving mechanism, at this time, the first jet printing bottom layer reaches the position corresponding to the second jet printing module 220, and then the first jet printing module 210 and the second jet printing module 220 synchronously scan and print once along the direction b from above the printing substrate, in the process, the first jet printing module 210 prints and forms a fourth white bottom layer unit, and the second jet printing module 220 prints and forms a first pattern unit on the first bottom layer unit. Then, the platen continues to move according to the above rule, and the first jet printing module 210 and the second jet printing module 220 continue to scan back and forth along the second direction synchronously according to the above rule, that is: the bedplate cooperates with the first spray printing module and the second spray printing module to work until the complete color pattern is printed on the white bottom layer. When the printing mode enables the color ink to start printing, the corresponding white ink is printed for the set interval (about 5-7 seconds), the time difference and the temperature of the printing substrate can ensure that the white bottom layer is basically dry, and the defects that the color ink is printed on the white bottom layer, the two inks are pasted together and the display effect is poor are avoided.
S4: and starting the drying lamp to dry the ink sprayed by the first spray printing module and the second spray printing module.
S5: and (4) placing the printed product obtained after the printing process is finished in an oven for drying.
According to the printing method, before the printing substrate starts to be printed, the printing substrate is ironed and heated, so that the printing substrate is at a higher temperature, the white ink can be quickly dried, the waiting time for printing color patterns or characters is shortened, the whole printing period is shortened, and the printing efficiency is improved. Meanwhile, a printing time difference exists between the white ink and the color ink which fall on the same physical position of the printing substrate, the time difference is short, if the three times of back and forth scanning are only 5-7 seconds in the embodiment, the color ink and the white ink can be regarded as starting to be sprayed and printed at the same time, and the whole printing period is further shortened.
It should be understood that: no matter how the precedence relationship between the step S4 and other steps and the precedence relationship between the step S0 and the step S1 are, the present printing method can solve the technical problems of long overall period and low efficiency of the current printing method, and the present invention does not specifically limit the above mentioned order relationship between the steps, for example: in some embodiments of the present invention, the drying lamp in step S4 is turned on when the first inkjet printing module 210 starts scanning in step S3, and at this time, the printing method can still solve the technical problems of long overall period and low efficiency of the existing printing method, and the drying lamp can accelerate drying of the white ink printed first, which is convenient for adhesion of the subsequent color ink, and can accelerate drying of the color ink, which is also beneficial to energy saving. In addition, the control process of the platen driving mechanism, the platen pressing driving mechanism, the printing driving mechanism, and the temperature control mechanism may be controlled by a control device (e.g., a computer, a control panel, etc.) built in the printing apparatus, or may be controlled by an external control device, which is not limited in this respect.
It should also be understood that: in another embodiment of the present invention, the step S3 includes that the first inkjet printing module can scan twice back and forth along the second direction according to actual requirements to form a bottom unit, that is: the first spray printing module scans back and forth at least once along a second direction to form the bottom layer unit; similarly, the second inkjet printing module can also scan back and forth more than two times along the second direction to form a pattern unit, that is: the first spray printing module scans back and forth at least once along a second direction to form the pattern unit; the distance that every time the platen drives the printing substrate to advance can also be other set distances, be: after the first spray printing module prints on the printing substrate to form a bottom layer unit each time, the bedplate moves a set distance along the positive direction of the first direction until the first bottom layer unit moves to a position corresponding to the second spray printing module, namely below the second spray printing module, the first spray printing module and the second spray printing module start to participate in printing simultaneously, and the interval time of the first bottom layer unit moving from the first spray printing module to the second spray printing module is the set interval time.
It is worth mentioning that the platen accumulates a lot of heat during the repeated operation, and its surface can be used to preheat the next printing substrate to be laid and dry the treating fluid on the printing substrate, thereby further ensuring the printing effect of the second and later printing substrates. Considering that the platen does not preheat the printing substrate in the printing process of the first printing substrate, the display effect of the printing substrate which is printed for the first time and the display effect of the printing substrate which is printed for the subsequent time have a certain difference, in order to overcome the defect and ensure that the display effect consistency of each printing substrate which is printed is good, the printing method further comprises the following steps between the step S0 and the step S1:
s01: the platen is preheated to a predetermined temperature range. Firstly, a platen driving mechanism drives a platen to move to a pressing station; and then, the pressing driving mechanism drives the pressing module to move to the surface of the bedplate, and the bedplate is pressed for a preset time, so that the bedplate is preheated to a preset temperature range. In the embodiment, the predetermined temperature range is 45-50 ℃, which is convenient for drying the treatment fluid and can not scald workers.
Further, in order to ensure that the flexible printing substrate such as cloth can be kept relatively stable during the printing process, and simultaneously avoid the printing substrate from being bent and uneven to damage the nozzle on the jet printing module, the printing method further comprises the following steps after step S1:
s11: the pressing mechanism is driven to pull the printing substrate to be flatly paved on the bedplate, and the pressing mechanism is driven to tightly press the printing substrate on the bedplate. The material pressing mechanism can be built in the printing equipment, or can be an external mechanism, as long as the material pressing mechanism can flatten and press the cloth.
In addition, in other embodiments of the present invention, according to actual needs, the first inkjet printing module and the second inkjet printing module may also be inkjet printing modules for inkjet printing inks of other colors, for example: in some embodiments, the first jet printing module and the second jet printing module are both color ink jet printing modules, but the first jet printing module and the second jet printing module respectively jet print two color inks with different colors so as to complete the jet printing process of the picture with the color of the ground color and the color of the pattern; another example is: in some embodiments, the first inkjet printing module is a color ink inkjet printing module, and the second inkjet printing module is a white ink inkjet printing module, which can be used to complete a printing process of printing a white pattern on a printing substrate with a white surface; and are not limited thereto. Similarly, the printing method can also be applied to printing dark color paper, PCB, FPC, and other printing substrates, which are not limited herein.
Based on the same inventive concept, the invention also provides a printed product, and the printed product is prepared by the printing method.
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 (10)
1. A method of printing, comprising:
laying a printing substrate on the bedplate;
heating the printing substrate to a preset temperature range;
controlling the printing module to correspond to the printing substrate, and enabling the printing module and the bedplate to cooperate together to execute a printing process so as to obtain a printed product;
the printing module comprises a first spray printing module and a second spray printing module which are arranged in parallel along a first direction, and the direction of the first spray printing module pointing to the second spray printing module is the positive direction of the first direction;
in the process that the printing module and the bedplate are matched together to execute printing, the bedplate moves along the positive direction of the first direction, the printing module scans back and forth above the printing substrate along a second direction intersecting the first direction, and after the first jet printing module starts scanning for a set interval duration, the second jet printing module and the first jet printing module synchronously scan back and forth along the second direction.
2. The printing method of claim 1, wherein the step of the print module in cooperation with the platen performing the printing process comprises:
s31: the first jet printing module scans back and forth at least once along the second direction above the printing substrate to form a bottom layer unit, and then the platen is driven to move for a set distance along the forward direction of the first direction;
s32: repeating the step S31 until the bottom layer unit reaches the position corresponding to the second jet printing module;
s33: the second jet printing module and the first jet printing module synchronously scan back and forth at least once along the second direction above the printing substrate, and then the platen is driven to move for a set distance along the positive direction of the first direction;
s34: and repeating the step S33 until the printed product is obtained.
3. The printing method of claim 1, wherein a gap between the first jet printing module and the second jet printing module is twice a width of the first jet printing module in the first direction.
4. The printing method of claim 1, wherein the step of heating the print substrate to a predetermined temperature range comprises:
driving a pressing module heated to a set temperature range to move to the surface of the printing substrate, and pressing the printing substrate for a preset time range; wherein the content of the first and second substances,
the set temperature range is 100-180 ℃, and the preset temperature range is 45-55 ℃.
5. A printing method according to any of claims 1 to 4, wherein prior to said step of laying down a print substrate on a platen, the printing method further comprises the steps of:
preheating the bedplate to a preset temperature range, wherein the preset temperature range is 45-50 ℃.
6. The printing method of claim 1, wherein the print substrate is a cloth, and after the step of laying the print substrate on a platen, the printing method further comprises the steps of:
and driving the pressing mechanism to pull the printing substrate to be flatly paved on the bedplate and driving the pressing mechanism to press the printing substrate on the bedplate.
7. A printing method according to any of claims 1 to 3, further comprising:
turning on a drying lamp;
the drying lamp is used for drying the ink jet printed on the printing substrate by the first jet printing module and the second jet printing module.
8. A printing apparatus, comprising:
a platen for carrying a printing substrate;
a platen heating module for heating the print substrate and/or platen prior to a printing process;
the printing module comprises a first spray printing module and a second spray printing module which are arranged in parallel along a first direction, the direction of the first spray printing module pointing to the second spray printing module is the positive direction of the first direction, and the printing module is used for completing the printing process through the cooperation of the first spray printing module, the second spray printing module and the bedplate;
the platen driving mechanism is used for driving the platen to move between the pressing module and the printing module and driving the platen to move along the forward direction of the first direction in the printing process.
9. The printing device according to claim 8, wherein the pressing module comprises a pressing block, a heat-generating tube and a temperature control mechanism; wherein the content of the first and second substances,
the heating tube is used for being electrified to generate heat and transferring the heat to the pressing block;
the pressing block is used for receiving heat transferred from the heating tube and transferring the heat to an external printing substrate;
the temperature control mechanism is respectively connected with the pressing block and the heating tube and is used for maintaining the temperature of the pressing block within a set temperature range.
10. A printed article, wherein the printed article is produced according to the printing method of any one of claims 1 to 7.
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| CN110816100B (en) | 2021-04-23 |
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