KR100538921B1 - Thermal transfer embedded digital printer - Google Patents

Abstract

The present invention relates to a thermal printer built-in digital printer, the support (10) erected from the bottom surface; The head 22 is installed on the support 10, the head 22 for outputting the given data to the fabric while reciprocating from the bed, a plurality of feed rollers (20a, 20b) for conveying the fabric as a rotational force supplied from the power transmission means A printer main body 20 including a control unit 24 for controlling the power transmission means and the head; A thermal transfer machine (30) installed in the thermal transfer chamber (12) provided at the front of the printer main body (20) to color the ink printed from the fabric (A) by a high temperature thermal sublimation method; It is installed in the rear of the printer main body 20 to supply the raw material supply roller 20-1 and the front of the printer main body 20 is installed in the front winding roller (20-2) for winding the colored fabric In the thermal printer built-in digital printer 100, the guide 23 is provided on both sides of the thermal transfer chamber 12, the cover 23 is detachably installed from the front surface, and the thermal transfer chamber 12 and the cover ( 23) the thermal transfer machine 30 for irradiating heat to the fabric (A) is printed and transported are arranged while being spaced apart from both sides of the fabric (A), are arranged in a mutually staggered form, the thermal transfer machine (30) In the upper transverse direction of the exhaust means 40 for exhausting the water vapor generated during the color development process according to the heat sublimation of the ink printed from the fabric is installed, connected from the exhaust means 40 is included in the water vapor Purify the smell Characterized in that the purification means 50 is connected and installed, in the thermal printer built-in digital printer, the thermal transfer machine installed in the printer main body installed in the printer main body is alternately installed in two rows to pass through between the thermal transfer machine By processing the ink color of the fabric more vividly to obtain a high-quality live image, especially on both sides, there is an advantage that does not require the pre-treatment, post-treatment process required for the color development process, heat due to the thermal transfer machine In the sublimation process, the discharge of water vapor generated in the process of color development of ink can be smoothly discharged in a given duct, and the environment in the workplace can be discharged by purifying the odor generated by chemical change along with the water vapor discharge. It is effective to keep the comfort.

Description

Thermal transfer embedded digital printer

The present invention relates to a digital printer embedded in a thermal transfer machine, and more particularly, to a digital printer for textiles, which maintains the texture of the fabric by thermal sublimation through thermal transfer in a state in which a design set from the fabric is printed at the time of actual printing. In addition, high quality photorealistic images can be obtained, and the chemical odor and water vapor generated during the thermal transfer process can be smoothly discharged.

As is well known, the textile digital printers that are widely used worldwide are printed on various types of texts, pictures, etc. on fabrics such as cotton, silk, polyester, etc. instead of paper. It is widely used for fabrics used for decoration, and fabrics for cloth.

In particular, when printing the fabric using the digital printer, the image is generally printed using dye ink and pigment ink as an aqueous ink on the fabric on which the coating layer is formed. Generally, the fabric before printing is chemically treated as a pretreatment process. The finished product is obtained through a pretreatment process in which a coating liquid chemical of a component is applied and a post-treatment process of washing and drying for removing the coating liquid from the printed fabric.

Examples of the transfer method of the fabric include a thermal melting method, a thermal sublimation method, and a direct transfer method in which a transfer paper (fabric) printed onto a transfer object is directly transferred without taking a physical method.

The textile digital printer is a device used by adopting a heat sublimation method, and has been widely used in the field of textile printing, and the above-mentioned heat sublimation method in the method of computerizing the process from design to final output using a computer. The work is done by way of copying.

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The thermal sublimation method in textile digital printers prints primarily through the head according to the setting of the image data given on the computer, and the image is more vivid by heat-sublimating ink from the printed image by applying natural drying or hot air to the fabric, It is used as a printing technique.

A simple configuration of the textile digital printer includes a support roller having a predetermined height, a feed roller connected to a power transmission device and a timing belt when outputting data input on a monitor, and interlocked horizontally from the top of the feed roller and supplied from an ink cartridge. And a printer body having a head for outputting the pattern indicated by the data as it is by the ink.

As shown in FIG. 1, a front side of the printer body 1 is provided with a drying apparatus 2 for supplying a heat source to a fabric on which various patterns or characters are printed. The drying apparatus 2 includes a printer body 1 The body portion 2a fixed to the support so as to be positioned at the front of the back), the heater member 2c installed inside the body portion 2a to generate a high temperature heat, and the rear of the body portion 2a. And a plurality of blowing fans 2d and the like installed in the heater to discharge the heater heat therein to the fabric through the opening 2b of the body portion 2a.

However, since the conventional drying apparatus 2 configured as described above has a structure in which the opening portion 2b of the trunk portion 2a is cut in one long one, the blowing fan 2d shown in FIG. Therefore, the heat generated through the heater member 2c in the trunk portion 2a can be discharged to the entire opening portion 2b only when a plurality of air blowers are installed. Even if a plurality of blower fans 2d are installed, the opening portion 2b is discharged. Since the area is wide enough, the heat generated from the heater member 2c is raised in a state where it is not sufficiently hit on the image of the far-end side, and thus there is a problem such that the color of ink (dye) printed from the far-end is not uniform.

In addition, it is also possible to install the drying apparatus as a horizontal transfer type, but this is a program setting must be made again because the design must be newly adapted to the printing feed speed of the printer, according to the transfer of the drying apparatus The color development process by thermal sublimation of ink printed on the fabric is a drying device that reciprocates in a direction orthogonal to the vertical transfer direction of the fabric. In addition to the large amount of hot air noise, there is a problem that the image due to the heat sublimation of the ink does not appear clearly because the speed due to the reciprocating transfer of the drying apparatus may be inconsistent with the transfer speed of the fabric.

In addition, in the related art, the power loss due to the large number of blower fans 2d installed is very large, and the production cost is greatly increased, and the structure of the drying apparatus 2 is not only very complicated, but also as a whole. There have been many problems, such as the digital printer looks very clunky.

In addition, in the process of color development according to the heat sublimation of the ink by blowing hot hot air, the wind strength condition of the disperse dye-based sublimation ink printed from the fabric to which the printing is made is not good. This is especially true for printing images on thin fabrics (e.g. insignia, flags, etc.), and printing solid ink (dye) components from the fabric. Productivity is low because it requires a washing step, a drying step, and the like. Such post-treatment is not competitive in terms of product quality and productivity.

On the other hand, the drying apparatus as described above is a color development by the thermal sublimation method of the ink from the time of printing the ink while transferring the head from the fabric, relatively high temperature from the printer equipment due to ink thermal sublimation from the fabric Water vapor is generated. The generation of water vapor occurs continuously during the color development of the fabric, and the generation of water vapor diffuses the volatile odor due to the scattering of the oil by chemical change due to the heat sublimation of the ink, thereby contaminating the workplace and health of the worker. There was a problem harmed.

In order to solve the above-mentioned problems, a separate exhaust device may be added to the digital printer and installed. However, since the area occupied by the duct of the exhaust device occupies a relatively large area, there is a problem of being limited in space due to the installation of the digital printer. In addition, as described above, the oil contained in the water vapor in the process of discharging the water vapor has a problem in that it is coalesced in the duct, there is also a difficulty in removing the oil in the future.

The present invention is a conventional textile digital printer, the hot air is not evenly generated in the process of color printing the ink printed from the fabric following the printing process, the color of the image is not made uniform, and the vertical conveyance direction of the fabric It is designed in consideration of the fact that the noise of the drying apparatus that provides hot air is generated while reciprocating and transferring it in the orthogonal direction, the oil vapor deposition by the shape of the water vapor during the ink development process, and the lack of treatment of harmful gases. By improving the installation structure of the infrared heater that provides the color development of ink by the heat sublimation method from the fabric, the color development of the ink can be clearly seen on both sides of the fabric without noise, and the pretreatment or post-treatment process of the fabric can be reduced. Its purpose is to.

In addition, another object according to the present invention, in the digital printer, in the process of vividly developing the ink printed from the fabric according to the heat sublimation to smoothly purify and discharge water vapor and odor generated by the high temperature heat, Its purpose is to enable the use of steam waste heat.

According to the present invention for achieving the above object, and a support erected from the bottom surface; It is installed on the upper part of the support, and includes a head for outputting the given data to the fabric while reciprocating from the bed, a plurality of feed rollers for transferring the fabric as the rotational force supplied from the power transmission means, a power transmission means and a control unit for controlling the head A printer body; A thermal transfer machine installed in a thermal transfer chamber provided in the front of the printer main body to color ink printed from a fabric by a high temperature thermal sublimation method; In the thermal printer built-in digital printer consisting of a fabric supply roller is installed in the rear of the printer body to supply the fabric and the fabric winding roller is installed in the front of the printer body to wind the colored fabric, Fixing guides on both sides of the thermal chamber The cover is detachably installed from the front surface by placing a member, and the thermal transfer chamber for irradiating heat to the fabric to be printed and transported in the thermal transfer chamber and the cover is arranged while being spaced apart from both sides of the fabric, and arranged in a mutually staggered form. The upper transverse direction of the thermal transfer machine is provided with an exhaust means for evacuating the water vapor generated during the color development process according to the heat sublimation of the ink printed from the fabric to the atmosphere, it is connected from the exhaust means is installed in the smell contained in the water vapor Purifying means for purifying is characterized in that the connection is installed.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

2 is a perspective view showing a digital printer of the present invention, and FIG. 3 is a front view of the digital printer according to the present invention.

The present invention is a support (10) erected from the bottom surface; The head 22 is installed on the support 10, the head 22 for outputting the given data to the fabric while reciprocating from the bed, a plurality of feed rollers (20a, 20b) for conveying the fabric as a rotational force supplied from the power transmission means A printer main body 20 including a control unit 24 for controlling the power transmission means and the head; A thermal transfer machine (30) installed in the thermal transfer chamber (12) provided at the front of the printer main body (20) to color the ink printed from the fabric (A) by a high temperature thermal sublimation method; It is installed in the rear of the printer main body 20 to supply the raw material supply roller 20-1 and the front of the printer main body 20 is installed in the front winding roller (20-2) for winding the colored fabric In the thermal printer built-in digital printer 100, the guide 23 is provided on both sides of the thermal transfer chamber 12, the cover 23 is detachably installed from the front surface, and the thermal transfer chamber 12 and the cover ( 23) the thermal transfer machine 30 for irradiating heat to the fabric (A) is printed and transported are arranged while being spaced apart from both sides of the fabric (A), are arranged in a mutually staggered form, the thermal transfer machine (30) In the upper transverse direction of the exhaust means 40 for exhausting the water vapor generated during the color development process according to the heat sublimation of the ink printed from the fabric is installed, connected from the exhaust means 40 is included in the water vapor Purify the smell Purification means 50 is configured to be connected to.

The thermal transfer chamber 12 is formed in a rectangular shape with one side open, the guide fixing member 21 is formed with a slide groove in the upper and lower edges, the upper and lower sides on both sides so that the cover 23 is removable from the slide groove. Fixing bracket is attached to the structure to fix and remove as a separate fastening screw.

The thermal transfer machine 30 is an infrared heater, one side is arranged in three rows horizontally on the cover 23 side, the other side is installed in two rows in the drying chamber 12, the thermal transfer machine on the cover side And arranged in a zigzag shape with each other, the fabric A is transported and passed between the corresponding thermal transfer machines 30.

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The exhaust means 40 is installed in parallel with the feed roller 20d for transporting the printed fabric (A), the water vapor inlet (41a) at a position corresponding to the section in which the thermal transfer machine 30 is installed laterally The duct 41 is provided with a plurality of) is installed on one side of the duct 41 is composed of a drive motor 42 and the exhaust fan 43 for sucking / delivering the water vapor introduced into the inside.

The driving motor 42 and the exhaust fan 43 connected to the duct 41 are installed at one end of the duct, so that the inside of the duct 41 may be configured to suck in water vapor as shown in FIG. 7. Suction type partition walls 41-1 for smoothing are formed.

The partition 41-1 has a different number depending on the length of the duct 41, and is formed in a manner of distributing the inlet 41a of the duct.

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On the other hand, Figure 8 is an embodiment according to the present invention, a front view of the digital printer using the waste heat of the steam. The feed roller 20d is a discharge passage through which the water vapor exhausted from the exhaust means 40 passes through the inside. An inner diameter 20d 'is formed, and purification means 50 for discharging / purifying water vapor exhausted from the feed roller 20d is connected.

The purifying means 50 is connected to the water storage tank 51 having a predetermined volume and formed with an exhaust port 51a on one side, and facing from the housing in which the exhaust fan 43 is installed into the water storage tank 51. It consists of a purification pipe 52 for purifying the odor contained in the stored water.

On the passage of the exhaust port 51a and the purification pipe 52 provided in the water storage tank 51, a filter f for filtering the oil contained in the water vapor is provided.

Referring to the operation and effects of the thermal printer built-in digital printer of the present invention configured as described above are as follows.

First, the fabric (A) is continuously supplied from the fabric feed roller (20-1) through the guide roller (R), and from the bed of the printer main body (20), a conventional power transmission means (not shown in the drawing). The pattern is printed on the fabric according to the data given by the head 22 reciprocating.

At this time, the printed fabric A is continuously supplied, and the ink printed on the fabric is thermally sublimed to produce a live-action output due to the thermal transfer of the thermal transfer machine 30 installed on the front side of the support 10 of the digital printer 100. It provides a printed fabric in the process of winding through the winding roller (20-2).

For reference, the winding roller 20-2 is automatically wound by a forward and reverse motor (not shown) provided on one side thereof.

At the time when the fabric is transferred from the head 22 and the fabric is conveyed, the feed roller 20d is primarily dried and transferred through another feed roller 20e, and the support 10 side twisted yarn chamber 12 The fabric already printed on the fabric A while passing through the thermal transfer machine 30 installed therein is colored with the heat sublimation action of the ink.

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In the digital printer of the present invention, the high temperature according to the action of the thermal transfer machine 30 arranged in the cover 23 provided in the guide fixing member 21 provided on both sides of the support 10 supporting the printer main body 20. As the heat treatment of the ink and the thermal sublimation of the ink as a chemical action, the color is generated, the thermal transfer machine 30 is arranged in a mutually staggered form on both sides, and the fabric passing between them evenly radiates heat from both sides. Images printed from fabrics made of relatively thin fabrics have a distinctive color due to the double-sided heat irradiation of the thermal transfer machine as described above, so that the prints on both sides have the same print (for example, a flag, flag, insignia, etc.). There is an advantage that can be used more suitably.

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The above-described thermal transfer machine 30 employs an infrared red heater, and preferably employs a heater used for general drying purposes. It is possible to obtain a clear image color according to the above, but the thermal transfer device arranged alternately on both sides to dry the inner and outer sides of the fabric at the same time has the advantage that you can get a clearer print while proceeding the color development time of the fabric faster .

The fabric A dried through the thermal transfer machine 30 as described above is automatically wound on the fabric winding roller 20-2 positioned at right angles to the front through the guide roller R provided at the lower portion thereof. It proceeds continuously.

Accordingly, the digital printer according to the present invention can produce a finished product in the digital printer itself without the pre-treatment or post-treatment process of the fabric by vivid color of the ink from the fabric dare additional equipment (washing equipment, color equipment) There is an advantage of not needing it.

On the other hand, by the heat treatment of the thermal transfer machine 30 arranged inside the cover 23 and the thermal transfer chamber 12, the hot water vapor is generated in the process of color development of ink from the fabric A so that the treatment of the old vapor is exhaust means. 40 is processed through.

The generation of water vapor is primarily sucked / discharged in the exhaust duct 41 provided laterally above the thermal transfer chamber 12 and the cover 23, and the discharge of the water vapor is the drive motor 42 which is the exhaust means. The suction is generated through a plurality of water vapor inlets 41a formed on the bottom surface of the duct 41 due to forcible suction force generated by the exhaust fan 43, and the sucked water vapor is connected to the housing side of the exhaust fan 43 for purification. The odor contained therein is purged and discharged together with water vapor suppression generated through the means 50.

In discharging the water vapor, the water vapor is smoothly sucked and discharged through the partition 41-1 formed in the suction type by allocating the inlet 41a in the duct 41 according to the present invention.

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The purifying means 50 installed adjacent to the exhaust means 40 discharges water vapor from the water storage tank 51 connected to the housing of the exhaust fan 43 on the duct 41 through the purification pipe 52. This is done.

At this time, the water vapor is purged in the water together with the generation of bubbles in the stored water, wherein some of the water vapor being purified is discharged through the exhaust port (51a).

In purifying steam as described above, the oil contained in the water vapor is collected in the water, or one minute of the oil is first filtered by the filter f in the purification pipe 52, and the filter f installed in the exhaust port. As the form filtered through the filter to maximize the oil component.

Purification as described above is made according to the discharge pressure in the water of the water storage tank 51, wherein the water vapor passing through the water is stored in the water storage tank 51 in a state where a significant amount of chemical odors (odor generated during ink drying) are purified. It is discharged to the outside along the discharge pipe through the discharge port 51a installed.

The purifying means 50 utilizes the effect of the water filter to purify the malignant elements contained in the gas contaminated in water, in the present invention by purifying the odor generated during the chemical change according to the ink heat sublimation in the workplace There is an advantage to improving the environment for the. While this can protect the health of workers as well as the workplace from harmful factors, it is possible to omit the design of large ducts that have been installed to solve water vapor generation according to the installation of printers. There is an advantage that can be useful.

On the other hand, as an embodiment according to the present invention, as shown in the accompanying Figure 8, one side of the duct 41 which is a component of the exhaust means 40, the inner diameter of the feed roller (20d) ( 20d ') is installed so that the high temperature water vapor sucked through the duct 41 can be exhausted while passing through the inner diameter 20d' of the feed roller 20d once again.

The water vapor finally exhausted through the transfer roller 20d as described above is capable of deodorizing, purifying and exhausting the chemical odor contained in the water vapor by the same method as described above through the purification means 50 installed at one side thereof. It has the same effect as above.

Therefore, in the present invention, the digital printer heat vaporizes the ink printed on the fabric A by the heat treatment of the thermal transfer machine 30 to develop color due to heat drying, so that the water vapor escapes to the duct 41. That is, the waste heat included with the water vapor is once again exhausted through the inside of the feed roller. As described above, the fabric to be printed and conveyed from the first bed is conveyed in close contact with the outer diameter of the feed roller. At this time, since the primary ink is dried from the fabric conveyed through the transfer roller maintained at a predetermined high temperature as heat by steam waste heat, it is possible to reduce the color development time of the ink through the thermal transfer machine in the future.

The above point is weak to thermally sublimate the overall bottom of the fabric (A) to be printed and transported, but secondary thermally sublimation through the thermal transfer machine 30 installed in the lower part of the thermal sublimation action of the ink By achieving a vivid color by the digital printer according to the present invention can be useful for not only the vivid print effect, but also the steam discharge.

As described above, according to the present invention, in the digital printer with a built-in thermal transfer machine, the thermal transfer machines installed in the printer main body are alternately installed in two rows, so that the color development of the ink passing through the thermal transfer machine is more clearly processed. In particular, it is possible to obtain a high-quality real image with clear both sides, which does not require the pre-treatment and post-treatment processes required for the color development process, and occurs during the color development process of ink in the thermal sublimation action of the thermal transfer machine. It is possible to smoothly discharge the discharged water vapor in a given duct, as well as to deodorize and purify the odor generated by chemical change along with the water vapor discharge, thereby maintaining a pleasant environment in the workplace. .

1 is a schematic view showing an extracting the drying apparatus of the printer according to the prior art,

2 is a perspective view showing a digital printer of the present invention;

3 is a front view of a digital printer according to the present invention;

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5 is a side cross-sectional view of a digital printer according to the present invention;

6 is an enlarged cross-sectional view of the exhaust means and the purification means of the digital printer according to the present invention;

7 is a cross-sectional view of the duct cut in the transverse direction,

8 is a front view showing an embodiment of a digital printer using waste heat as an embodiment according to the present invention.

<Description of the symbols for the main parts of the drawings>

10: support 12: drying chamber

20: printer body 20d: feed roller

21: guide fixing member 23: cover

30: thermal transfer machine 40: exhaust means

41: duct 41a: inlet

41-1: bulkhead 50: purification means

100: digital printer A: fabric

Claims (10)

A support 10 erected from the bottom surface; The head 22 is installed on the support 10, the head 22 for outputting the given data to the fabric while reciprocating from the bed, a plurality of feed rollers (20a, 20b) for conveying the fabric as a rotational force supplied from the power transmission means A printer main body 20 including a control unit 24 for controlling the power transmission means and the head; A thermal transfer machine (30) installed in the thermal transfer chamber (12) provided at the front of the printer main body (20) to color the ink printed from the fabric (A) by a high temperature thermal sublimation method; It is installed in the rear of the printer main body 20 to supply the raw material supply roller 20-1 and the front of the printer main body 20 is installed in the front winding roller (20-2) for winding the colored fabric In the configured thermal transfer machine embedded digital printer 100, A guide fixing member 21 is provided on both sides of the thermal transfer chamber 12 so that the cover 23 is detachably installed from the front surface, and the fabric A is printed and transferred in the thermal transfer chamber 12 and the cover 23. The thermal transfer machine 30 for irradiating the heat is arranged while being spaced apart from both sides of the fabric (A), are arranged in a mutually staggered form, the upper transverse direction of the thermal transfer machine 30 of the ink printed from the fabric Exhaust means 40 for exhausting the water vapor generated during the color development process by sublimation to the atmosphere is installed, the purifying means 50 is connected from the exhaust means 40 to purify the odor contained in the water vapor is connected and installed Thermal printer built-in digital printer, characterized in that the configuration. delete delete delete According to claim 1, The exhaust means 40 is installed in parallel with the feed roller 20d for transporting the printed fabric (A), the duct 41 is provided with several water vapor inlet (41a) at the bottom, Installed on one side of the duct 41 is a thermal printer built-in digital printer, characterized in that consisting of a drive motor 42 and an exhaust fan 43 for delivering water vapor introduced into the inside. A suction type partition wall (41-1) is formed in the inner longitudinal direction of the duct (41) for smooth suction of water vapor, and the partition wall (41-1) is a duct (7). A thermal printer built-in digital printer, characterized in that formed in the form of distributing the inlet (41a) of the 41. delete According to claim 1, The feed roller (20d) is formed inside the inner diameter (20d ') that serves as a discharge passage through the water vapor is exhausted from the exhaust means 40, one side end of the feed roller (20d) The thermal printer built-in digital printer, characterized in that the purifying means (50) is connected and installed to discharge / purify the water vapor exhausted from the inner diameter (20d ') of the feed roller (20d). According to claim 1, The purifying means 50 is a water storage tank 51 having a predetermined volume and formed with an exhaust port 51a for discharging water vapor on one side, and connected to the water storage tank from the exhaust means to the water vapor Thermal printer built-in digital printer, characterized in that consisting of a purifying pipe 52 for purifying the odor containing water. 10. The thermal printer built-in digital printer according to claim 9, wherein a filter (f) is provided on an exhaust port (51a) provided in the water purifying tank (51) and a passage for filtering oil contained in the water vapor.