KR20190078219A - Inkjet printer - Google Patents

Abstract

The present invention relates to an inkjet printer, which can obtain a high quality stereoscopic output by forming multiple printing layers of a glossy coating layer and a color scheme printing layer at the same time as a one-time printing output, enable inks of three primary colors as basic colors of a color scheme, a black color, and a white color applied as a background color to be variously mixed and arranged in an inkjet modular through respectively corresponding ink heads so that a user can print in a desired form regardless of the background color or transparency of a printing material, and discharge and supply air to an output printing surface to reduce ink drying time and ensure quality stability. To this end, according to the present invention, the inkjet printer comprises: a fabric supply bobbin and a print output winding bobbin arranged on both sides of a main body; an inkjet module provided on a sliding platform of an upper side of the main body to reciprocate; color scheme ink heads and a glossy coating agent ink head for spraying inks; and a printing material feeding roller. A head providing plate having a stepped multi-stage providing part is provided on a lower side the inkjet module. The color scheme ink heads of the three primary colors and black are arranged in one multi-stage providing part, and the glossy coating agent ink head is arranged in the other multi-stage providing part.

Description

Inkjet printer {Inkjet printer}

The present invention forms multiple print layers of a color color print layer and a glossy coat layer at the same time as the printing output of a non-stop one cycle to obtain a high quality three-dimensional printout, and in addition to the primary colors of color, (Unidirectional printing or bidirectional printing) irrespective of the background color or transparency of the printing material by arranging various combinations of the inks of the white color for the inkjet head to the inkjet module through the corresponding ink heads, To an ink jet printer capable of shortening the ink drying time and ensuring quality stability by supplying air in real time to the output printing surface.

A well-known ink-jet printer converts a video signal of a digital control unit into a color image of a frequently used (magenta: M), yellow (yellow: Y), cyan And black (B: B) inks to a variety of printing material surfaces such as paper, film, and fabric, thereby outputting patterns and colors of the set patterns. The device is excellent in sharpness of color development, It is possible to print stable and high quality regardless of the type and thickness of the printing material. Thus, it is widely used as a digital output device for various industrial fields.

As shown in Figs. 1 and 2, the conventional inkjet printer includes a fabric feeding bobbin (printing material feeding bobbin) 2 and a printed output winding bobbin 3 arranged on both sides of the main body 1 of the supporting frame structure, And an inkjet module 4 which is arranged on the sliding platform on the upper side and reciprocally moves in a direction orthogonal to the conveying direction of the fabric (printing material) at an angle of 90 °. The inkjet module 4 has three primary colors (cyan / A color color ink head 5 for jetting the four colors of magenta (yellow) and black (black) is arranged and arranged so that the driving roller 7 for conveying the printing material P, A roller (pinch roller) 8 is provided.

In the conventional inkjet printer having the above-described configuration, the printing material P is fed from the raw material feeding bobbin 2 in accordance with the organic pressing action between the driving roller 7 and the pressing roller 8, The three primary colors of black and four colors of black are jetted onto the surface of the printing material P from the ink head 5 mounted on the lower side of the reciprocating and moving inkjet module 4 to print the pattern and color of the set pattern, The desired digital printing operation is completed by winding the printout on the winding bobbin 3 of the printer.

However, the color coloring ink head 5 for matching and ejecting the four colors of ink at a ratio of 1: 1 is generally arranged at an interval of about 0.7 to 1 mm with respect to the fabric in order to obtain the optimum mixing coloring efficiency, In order to prevent the denaturation and coloring of the surface of the printing ink and to achieve a three-dimensional printing effect by gloss or diffused reflection of light in keeping with the high performance of the ink jet printer, a separate glossy coating ink When the color coating ink is overcoated with the color ink color printing after the head is additionally disposed, the applied color color ink layer and the coating layer of the gloss coating are added so that the thickness of the entire printing ink layer becomes equal to the thickness of the printing material (cloth) It is easy to exceed the interval set between the color coloring ink heads 5, and in such a state, A phenomenon such as scratching and peeling occurs while the head end portion (nozzle portion) or the lower side of the inkjet module 4 is in collision contact with the multiple print layer (the polymer print layer of the color color ink and the glossy coating ink) It is difficult to output the stereoscopic composite print layer only by one printing operation.

Accordingly, in order to overcoat the functional gloss coating agent without damaging the color color ink surface, the four color color ink is firstly printed, then the original is moved to the initial printing position in the operation stop state, It is not easy to coat the gloss coating with a uniform thickness on the surface of the color pigmented ink layer printed in such a process (division printing process and division re-feeding process), and it is difficult to coat the coating position It is also technically difficult to accurately reset, and the multiple printing operation of the color color printing layer and the gloss coating layer is troublesome and the working time is also delayed, so that the productivity is deteriorated and high quality composite print output can not be obtained.

Further, in addition to the three primary colors of magenta (M), yellow (Y), and cyan (C) and the four-color UV curable ink (color color ink) of black (B) It is difficult to print on both sides except single-sided printing. When printing on a printing material having a dark and dark color, it is necessary to use a four-color color It is difficult to express the patterns and colors of the patterns set by embedding the color of the background in the background color, and it is difficult to realize various forms of printing irrespective of the transparency and background color of the printing material.

On the other hand, since the ink of the ink jet printer is a water-soluble dye ink, it takes a considerable time to naturally dry at room temperature, so it is difficult to realize high-speed output of printed matter unless a separate drying device is additionally provided.

The present invention has been developed in order to efficiently solve the above-mentioned problems of the prior art, and it is an object of the present invention to provide an ink-jet recording head comprising three primary colors and black ink heads for coloring, a white ink head for applying a background color, The head is disposed in a stepped multi-step mounting portion of the head mounting plate mounted on the lower side of the ink-jet module, and the three primary colors, black and white ink heads are arranged in the multi-step mounting portion located closest to the printing material, , White), the multiple color printing layer and the multiple printing layer of the gloss coating layer are formed in the non-stop printing process in the printing process, So that it can be outputted quickly in a one-cycle manner.

In the present invention, the three primary colors and the black ink heads arranged in the multi-end mounting portion of the head mounting plate are combined into a single set or a plurality of the ink heads are arranged in a single unit, and a combination of three primary colors and a base color The present invention has another object in that it is possible to easily and easily print the patterns and colors of the patterns set irrespective of the transparency of the printing material and the basic background colors in a single-sided or double-sided direction.

Another object of the present invention is to provide a blowing system in which a head mounting plate and an ink-jet module are connected to each other to discharge air to the surface of a printing surface, thereby realizing high-speed output of printed matter in accordance with shortening of ink drying time .

According to an aspect of the present invention, there is provided an image forming apparatus including: a fabric supply bobbin and a print output bobbin wound on both sides of a main body; an inkjet module mounted on a sliding platform on an upper side of the main body; And a printing material conveying roller. The ink jet printer is provided with a head mounting plate having a stepped multi-stepped portion below the ink-jet module, wherein one of the multi-stepped portions has three primary colors and a black color The coloring ink head is arranged and the gloss coating agent ink head is arranged alone on the other multi-stage mounting portion.

Further, the present invention is characterized in that a white ink head is additionally arranged in a multistage mounting portion provided with an ink head of three primary colors and black, the white ink head is disposed in front of the aligned primary colors and black ink heads, And the white ink head is arranged at an intermediate position between the ink heads (the aligned three primary colors and the black) arranged in a double-placed manner.

According to the present invention, an air discharge portion is formed in accordance with the organic connection between the inkjet module and the head mounting plate. The air discharge portion includes a partition wall formed on one side of the inner space of the inkjet module, a blowing fan mounted on the partition wall using a bracket, And a slant discharge hole on one side of the plate.

According to the present invention, an ink head for integrally forming a stepped stair-stepped multi-stepped portion on a head mounting plate for installing an ink head and applying the color and color of the ink to the printing material is arranged in a multi- In addition, the gloss coating ink head is divided into a multi-stage mounting portion having a middle or the farthest distance from the printing medium, so that the contact between the ink head nozzle and the ink jet module and the gloss coating layer is fundamentally prevented in the composite printing process, It is possible to print at a high speed with only one printing operation and to apply a large amount of a glossy coating agent and print it, thereby achieving a high level of 3D stereoscopic effect, and further improving productivity and securing quality stability.

In addition, a white ink head among the white ink head and the color color ink head (three primary colors and black ink head) which are arranged in combination with the multi-end mounting portion of the head mounting plate is disposed in front of the color color ink head, The pattern and color of the shape to be implemented can be printed in a circular or double-sided orientation in an original manner irrespective of the transparency of the printing material as the output object and the basic background color, The ink drying time on the output printing surface is effectively shortened by using air, thereby contributing to the improvement of productivity through high-speed output of the printed matter.

1 and 2 are front and side views for explaining the structure of a general inkjet printer
Fig. 3 is a plan view of the head mounting plate according to the present invention,
4 is a view showing an example of attaching a head mounting plate according to the present invention
5A to 5D are views showing an ink head arrangement according to a preferred embodiment of the present invention
6 is a diagram illustrating an example of the structure of an air discharge portion according to another embodiment of the present invention

The terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary terms and the inventor can define the concept of the term appropriately in order to describe his or her invention in the best way It should be understood that the present invention is not limited to the above embodiments and various changes and modifications may be made without departing from the spirit and scope of the present invention as defined by the appended claims and their equivalents. And it should be understood that various equivalents and modifications may be present.

In addition, the same reference numerals are given to common elements of an ink-jet printer, and the operational relationship with respect to the overall printing process is also described in the background art, so that redundant description will be omitted.

Hereinafter, preferred embodiments of the present invention will be described in detail.

FIG. 3 is a plan view and a bottom surface perspective view of the head mounting plate of the present invention, FIG. 4 is an example of attaching a head mounting plate according to the present invention, FIGS. 5a to 5d are views showing an example of the ink head arrangement And FIG. 6 is a view showing an example of the structure of the air discharge part according to another embodiment of the present invention, respectively.

The inkjet printer according to the present invention comprises a raw material supply bobbin 2 and a printed output material winding bobbin 3 disposed on both sides of the main body 1, an inkjet module 4 mounted on a sliding platform on the upper side of the main body 1, A color coloring ink head 5 and a gloss coating ink head 5a for ejecting ink, a printing material (printing output) conveying roller (driving roller and pressure roller) 7 (8) And an air discharging portion 20 formed in accordance with the organic connection between the head mounting plate 10 and the ink jet module and the head mounting plate.

The head mounting plate 10 of the illustrated embodiment is mounted on the lower side of the inkjet module 4 to stably manage the bending moment with respect to an external force such as impact or shaking, (10a) and (10b) for installing an ink head, wherein the multi-stage mounting part (10a) and the step (10b) for mounting the ink head are provided in the vicinity of the printing material (P) The ink head 5 of the three primary colors and the black color for coloring is arranged in the multi-stage mounting portion 10a spaced apart from the printing material P and the other multi-stage mounting portion 10b of the middle or far- The gloss coating ink head 5a for obtaining a three-dimensional printing effect through diffused reflection of light may be arranged singly or may be additionally arranged in plural if necessary.

In addition, the step-like multi-stage mounting portions 10a and 10b are formed by successively cutting at least two or more in a succession of steps within the thickness range of the head mounting board 10, And the separation distance between the multistage mounting portion 10a in which the three primary colors and the black coloring ink heads 5 are arranged and the printing material P is kept within 1 mm and these ink heads And black) are arranged in the multi-stage mounting portions 10b formed integrally with the multi-stage mounting portions, the spacing distance is increased by 1 mm each.

The reason why the height difference between the multi-stage mounting portions 10a and 10b of the above example is set in a stepwise manner is to prevent the contact between the nozzles of the ink head or the inkjet module 4 and the printing layer during the complex printing process, So that the printing layer is formed simultaneously with one printing output.

In addition, the present invention is characterized in that a white ink head 5c is additionally disposed in combination on the multi-end mounting portion of the head mounting plate 10 so that the set colors and patterns, regardless of whether the output object (printing material) It is possible to simultaneously print the single-sided or double-sided printing with the one-cycle printing output.

For example, a white ink head 5c is additionally arranged in the multistage mounting portion 10a provided with the three primary colors and the black ink head 5, and a white ink head 5c is arranged in front of the aligned three primary colors and the black ink head 5 So that the pattern and color of the original original set regardless of the original background color of the printing material P itself as an output object can be expressed intact and the ink heads 5 and 5b of the three primary colors and black are arranged in a set And the white ink head 5c is arranged at an intermediate position between the ink heads (the three primary colors and the black) 5b and 5b which are arranged in a double position, Printing is implemented.

The air discharging portion 20 of the illustrated embodiment includes a partition wall 21 partitioned into one side of the inner space of the inkjet module 4, a blowing fan 23 mounted on the partition wall using the bracket 22, And a slant discharge hole 11 on one side of the plate 10.

The partition wall 21 in the above example can be formed by bending a thin metal plate or by injection molding. The air generated from the blowing fan 23 is guided to the inclined discharge hole 11 of the head mounting plate And is positioned on one side of the interior of the inkjet module 4 and can be fastened through various fixing methods such as bolt fastening or interference fit, or can be fastened using the bracket 22.

The inclined discharge hole 11 in the above example is formed by cutting the rear end portion of the head mounting plate 10 obliquely. When the head mounting plate 10 is fastened to the inkjet module 4, it is naturally slit- And a rectangular groove 12 for fixing the lower end of the partition wall 21 to the upper surface of the head mounting plate adjacent to one side of the inclined discharge hole 11 is formed.

The heat generating heater 24 for blowing hot air is provided below the blowing fan 23 of the air discharging unit 20 so that the ink drying efficiency is improved even in a low temperature environment such as the winter season, And the other end thereof is bent in a form suitable for receiving the upper end of the partition wall so that the ventilation fan 23 and the partition wall 21 can be fixedly installed.

The following description will be made in order to examine in detail the operation and effect of the ink jet printer having the characteristic elements as described above.

As shown in FIG. 5A, the three primary colors and the black coloring ink head 5 for coloring are arranged in a multi-stage mounting portion 10a positioned closest to the printing material and are used for obtaining a three-dimensional printing effect through diffused reflection of light and light The gloss coating agent ink head 5a is arranged on the other multi-stage mounting portion 10b which is farther away from the printing material than the multi-stage mounting portion so that the difference in height between the multi-stage mounting portions 10a and 10b Accordingly, since the contact between the multiple print layer and the bottom surface of the ink head or the inkjet module is fundamentally interrupted, a high quality composite multiple print layer can be output quickly with only one output.

That is, the multi-stage mounting portion 10a in which the three primary colors and the black ink heads 5 are arranged is disposed in the vicinity of the other multi-stage mounting portion 10b in which the spacing distance from the printing material P is about 1 mm and the gloss coating agent ink head 5a is arranged Since the separation distance is about 2 mm, the ink head and the ink jet module, which are spaced apart from each other by a sufficient distance in the course of multi-polymerization printing of the glossy coating agent on the color color printing layer printed on the printing material, do not contact the surface of the multiple printing layer, (10a) 10b of the head mounting plate 10 can be additionally provided to the head mounting plate 10 when necessary, as well as productivity and quality stability as well as productivity can be ensured by shortening the printing time of the composite printout. 5D, the gloss coating agent ink head 5a is also divided into a plurality of portions so that a large amount of a glossy coating agent is applied and printed, It will also double the chain effect.

5B, the white ink head 5c is further arranged in front of the black ink head 5, so that the pattern and color of the set pattern can be obtained regardless of the background color of the printing material P For example, when a printing material having a dark and deep background color is used as an output target, white UV curable inks may be printed first, then the three primary colors and black ink heads 5b and The printing layer of the color coloring and the printing layer of the gloss coating color are successively combined and printed from the gloss coating ink head 5a so that the original color and the pattern can be printed out in three dimensions on the white coloring surface. It is possible to print a composite print for all the printing materials that the user desires without considering or employing them selectively.

On the other hand, as shown in FIG. 5C, the white ink head 5c is arranged at a middle position by arranging the three primary colors and the black ink heads 5 and 5b in a pair, (Three primary colors and black) 5 on the front side of the transparent printing material P is preferentially printed on the surface of the transparent printing material P and then the white ink heads 5c ), The double-color color ink head 5b and the gloss coating agent ink head 5a sequentially print a white print layer, a color color print layer and a glossy coat printing layer sequentially to realize a three-dimensional double-sided print output for a transparent printing material At this time, the multiple print layer is not printed on one side of the transparent printing material but the multiple print layer on the other side is directly observed to obtain the double side output effect Will, in the case to stop the operation of the color ink jet color ink head is located at the rear head white ink as needed in three dimensions the output-side printing on a transparent printing material is also made possible.

In addition, when the output data value of the digital image signal is differently applied to the dual color ink head, the colors and patterns of the different patterns are formed on both sides of the transparent printing material, so that various printouts can be obtained.

Further, since the air discharge portion 20 is constructed in accordance with the organic linkage between the inkjet module 4 and the head mounting plate 10, the present invention can shorten the ink drying time of the multiple print layers and achieve high- The head mounting plate 10 is simultaneously printed with the color color ink heads 5 and 5b and the white ink head 5c and the gloss coating agent ink head 5a arranged in the head mounting plate 10 as shown in Fig. It is possible to adjust the air jetting pressure by controlling the moving speed of the air blowing fan 23 at this time, In the winter season when the air temperature is low, the heating heater 24 located below the blowing fan is operated to supply warm air, so that efficient ink drying can be realized even in a low temperature environment where the viscosity of the ink rises.

1: main body, 4: inkjet modular,
4a: Guide rails 5,5b: Color color ink head,
5a: Glossy coating agent ink head, 5c: White ink head,
10: head mounting plate, 10a, 10b: multi-stage mounting portion,
11: a slant discharge hole, 20: an air discharge portion,
21: bulkhead, 22: bracket,
23: blowing fan, 24: heating heater,
P: Printing material (fabric)

Claims (9)

A fabric feeding bobbin 2 and a printing output bobbin 3 disposed on both sides of the main body 1; an inkjet module 4 mounted on a sliding platform on the upper side of the main body 1 and reciprocating; An ink jet printer comprising an ink head (5), a gloss coating agent ink head (5a), and a printing material (P) conveying roller (7) (8)
A head mounting plate 10 having stepped multi-stepped portions 10a and 10b is provided on the lower side of the inkjet module 4, and three-color and black color-inked ink heads are arranged on one multi- And the gloss coating agent ink head is arranged alone in the multi-stage mounting portion.
The method according to claim 1,
The stepped multi-step mounting portions 10a and 10b may be formed by cutting in a stepwise manner within the thickness range of the head mounting plate 10, or by bending the head mounting plate itself in a stepped shape. Inkjet printers.
The method according to claim 1,
The stepped multi-step mounting portions 10a and 10b are formed by successively stacking at least two or more of the plurality of stepped multi-step mounting portions 10a and 10b. In the multi-step mounting portion 10a having the closest distance to the printing material P, And the gloss coating agent ink head 5a is arranged one by one in the multistage mounting portion 10b, which is separated from the printing material by a distance greater than that of the multistage mounting portion in which these heads (the three primary colors and the black) The ink jet printer comprising:
The method of claim 3,
The inkjet heads 4 and 5 are integrally formed with the multistage mounting portion in which the distance between the multistage mounting portion 10a in which the three primary colors and the black color ink head 5 are arranged and the printing material P is kept within 1 mm, Wherein the multi-step mounting portions (10b) are formed to increase the separation distance by 1 mm each.
The method according to claim 1,
A white ink head 5c is additionally arranged on the multistage mounting portion 10a provided with the three primary colors and the black ink head 5c so that the white ink head 5c is arranged in front of the aligned three primary colors and the black ink head 5 To the inkjet printer.
The method according to claim 1,
The white ink head 5c is additionally arranged on the multistage mounting portion 10a in which the ink head 5 of the three primary colors and the black is provided, the ink heads of the three primary colors and the black ink are arranged and arranged in a pair, (5c) is arranged at an intermediate position between the ink heads (the three primary colors and the black) (5, 5b) which are arranged in a double manner.
The method according to claim 1,
The air discharge portion 20 is formed in accordance with the organic connection between the inkjet module 4 and the head mounting plate 10. The air discharge portion 20 includes partition walls 21 partitioned into one side of the inner space of the inkjet module, A blowing fan (23) mounted on the upper side of the partition using a bracket (22), and a warp discharge hole (11) on one side of the head mounting plate.
8. The method of claim 7,
The partition wall 21 may be formed by bending a thin metal plate or by injection molding. The partition wall 21 may be formed of a metal plate, for example, Wherein the nozzle is formed in a narrow hopper shape.
8. The method of claim 7,
The inclined discharge hole 11 is formed by cutting the rear end portion of the head mounting plate at an oblique angle and a groove 12 for fixing the bottom end of the partition is formed on the upper surface of the head mounting plate adjacent to the inclined discharge hole. Inkjet printer.

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