A drying apparatus for coating printing on fabric surfaces

Abstract

This utility model discloses a drying device for surface coating printing on fabrics, relating to the field of coating printing technology. It includes: a long-channel drying chamber, through which the fabric to be coated enters from one end and extends out from the other; a curing lamp, positioned on the upper surface of the end of the long-channel drying chamber where the fabric enters, for ultraviolet irradiation and curing of the fabric; an air inlet filter mechanism, positioned on the upper surface of the end of the long-channel drying chamber where the fabric extends, for filtering air before it enters the long-channel drying chamber; an air extraction mechanism, positioned on the end of the long-channel drying chamber where the fabric enters, for extracting air from the long-channel drying chamber; and a spray tower, with the air extraction mechanism connected to the bottom of the spray tower to draw air from the long-channel drying chamber into the spray tower.

Description

Technical Field

[0001] This utility model relates to the field of coating printing technology, and in particular to a drying device for coating printing on fabric surfaces. Background Technology

[0002] Pigment printing is one of the printing techniques for fabrics. Pigments differ from dyes in that they have no direct contact with fibers. They cannot bind to fibers; they are merely insoluble colored powders, mostly organic synthetics, but some are inorganic. The principle behind their "coloring" on fibers relies on a synthetic resin that forms a strong film, adhering to the fiber surface. Therefore, it can be used to print on fabrics made of various fibers. Pigment printing uses thermosetting or thermoplastic synthetic resins as binders, mixed with insoluble pigments to form a pigment printing paste. This paste is applied to the fabric surface using mechanical or manual methods, and after drying and baking, a thin film is formed, allowing the pigment to tightly adhere to the fibers, achieving the purpose of printing and coloring. Therefore, the pigment printing process on the fabric surface is generally carried out using a drying device.

[0003] However, most current drying equipment directly dries pigment printing without a corresponding temperature transition process, making it impossible to accurately control the heating temperature. This results in direct high-temperature drying of pigment printing, causing the prints to turn white and affecting the quality of the pigment printing. In addition, the drying process of pigment printing produces toxic and harmful gases, mainly from volatile organic compounds and formaldehyde and other chemicals. Direct emission will cause air pollution and affect the health of surrounding workers. This situation should be effectively addressed to ensure the safety of workers.

[0004] Therefore, based on the above-mentioned technical problems, those skilled in the art urgently need to develop a drying device for coating printing on fabric surfaces. Utility Model Content

[0005] The purpose of this invention is to provide a drying device for coating printing on fabric surfaces that can perform gradual heating and drying of coating printing and can treat the toxic and harmful gases generated during coating printing drying in an environmentally friendly manner.

[0006] To achieve the above objectives, this utility model provides the following technical solution: This utility model discloses a drying device for printing coatings on fabric surfaces, comprising: A long-channel drying oven allows fabrics with surface coating printing to enter from one end and exit from the other end. A curing lamp is installed on the upper surface of one end of the long-channel drying oven where the fabric enters, and is used to cure the fabric with surface coating printing by ultraviolet irradiation. An air intake filtration mechanism is provided on the upper surface of the end of the fabric that extends out of the long channel drying box so that filtered air enters the long channel drying box. An air extraction mechanism is provided at one end of the long channel drying box where the fabric enters, and is used to extract air from the long channel drying box. And a spray tower, wherein the air extraction mechanism is connected to the bottom of the spray tower to extract air from the long channel drying box into the spray tower.

[0007] Furthermore, a conveyor belt is provided at the bottom of the long channel drying box, and the upper side of the conveyor belt extends laterally through the long channel drying box so that the fabric entering the long channel drying box travels on the conveyor belt; The conveyor belt is located below the air intake filtration mechanism and the air extraction mechanism.

[0008] Furthermore, both ends of the long-channel drying box are provided with openings for the conveyor belt and the fabric with surface coating printing to enter and exit.

[0009] Furthermore, the curing lamp is a UV LED curing lamp.

[0010] Furthermore, the air intake filtration mechanism includes a dust filter screen, and the upper surface of the end of the long channel drying box where the fabric extends is provided with a mounting port for installing the dust filter screen, and the dust filter screen is fixed to the mounting port position by bolts; A primary filter chamber is located on the top of the outer side of the long channel drying chamber, above the dust filter screen. The primary filter chamber is detachably installed on the long channel drying chamber by bolts. The top of the primary filter chamber has an arc-shaped structure and is equipped with a ventilated protective net. Inside the primary filter chamber, between the protective net and the dust filter screen, an arc-shaped partition is installed with the outer arc surface facing upwards. Adhesive paper is pasted on the upper surface of the arc-shaped partition.

[0011] Furthermore, an air collecting hood is provided inside the long channel drying box below the dust filter, and a uniform air outlet plate is provided at the bottom of the air collecting hood. The uniform air outlet plate is a grid plate. An electric heating wire is installed inside the air collecting hood, below the dust filter.

[0012] Furthermore, the air extraction mechanism includes an air extraction pipe, one end of which is connected to the end of the long channel drying box through which the fabric enters, and the other end of which is connected to the bottom of the spray tower. A negative pressure fan is installed inside the air extraction pipe to draw out the air from the long channel drying box.

[0013] This utility model has the following beneficial effects. This utility model's long-channel drying oven provides a gradually heating environment for effectively controlling the temperature of fabric surface coating printing. Combined with the curing effect of the curing lamp at the front end of the long-channel drying oven, the drying effect of the printing is effectively improved, avoiding the situation where direct high temperature acts on the coating printing and causes the printing to turn white. This device also filters the air through an air intake filter mechanism to prevent dust from entering the long-channel drying oven and adhering to the coating printing, affecting the printing quality. At the same time, the air extraction mechanism extracts the air from the long-channel drying oven during the drying process and sends it to a spray tower for environmentally friendly treatment. The toxic and harmful gases are neutralized by the spray neutralizing liquid before being harmlessly discharged, so as to avoid polluting the environment and affecting the health of workers. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0015] Figure 1 A schematic diagram of the structure of a drying device for printing coatings on fabric surfaces is provided for an embodiment of this utility model; Figure 2 A front view of a uniform air outlet plate of a drying device for printing coatings on fabric surfaces, provided as an embodiment of this utility model.

[0016] Explanation of reference numerals in the attached figures: 1. Long-channel drying oven; 2. Curing lamp; 3. Spray tower; 4. Conveyor belt; 5. Opening; 6. Dust filter; 7. Primary filter chamber; 8. Protective net; 9. Curved partition; 10. Adhesive paper; 11. Air collection hood; 12. Uniform air outlet plate; 13. Heating wire; 14. Air extraction duct; 15. Negative pressure fan. Detailed Implementation

[0017] To enable those skilled in the art to better understand the technical solution of this utility model, a further detailed description of this utility model will be provided below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0018] See Figures 1 to 2 As shown; This embodiment discloses a drying apparatus for coating printing on fabric surfaces, comprising: The long channel drying box 1 allows the fabric with surface coating printing to enter from one end and extend from the other end. The long channel drying box 1 is lengthened in its extending direction so that the fabric with surface coating printing has a sufficiently long travel process in the long channel drying box 1, so that there is enough distance to achieve the distribution of gradient drying temperature during this process, thereby better implementing drying and avoiding whitening of the printing. Curing lamp 2 is installed on the upper surface of the end of the fabric entering the long channel drying chamber 1 to cure the surface-printed fabric with ultraviolet light. At the front end of the long channel drying chamber 1, it can work with high-temperature air to dry the printing. In order to avoid insufficient drying temperature at the front end of the long channel drying chamber 1, which would not be effective for drying the printing, the curing lamp 2 is used to assist in drying to ensure the drying effect of the printing. However, this step can only cure the surface of the printing. A subsequent high-temperature air drying process is required. However, the temperature will rise to room temperature later to dry the printing well and make the overall printing drying effect better. An air intake filter mechanism is installed on the upper surface of the end of the fabric that extends out of the long channel drying box 1 so that the air is filtered before entering the long channel drying box 1. An air extraction mechanism is installed on the long channel drying box 1 at the end where the fabric enters, and is used to extract air from the long channel drying box 1. And spray tower 3, the air extraction mechanism is connected to the bottom of spray tower 3 to extract the air in long channel drying box 1 to spray tower 3.

[0019] Specifically, during the process of the surface-coated printed fabric entering from one end and exiting from the other end of the long-channel drying chamber 1, the printing is initially cured by the curing lamp 2. Simultaneously, an air extraction mechanism draws air out of the long-channel drying chamber 1, allowing the air to enter through the air inlet filter and be heated. As the air flows through the long-channel drying chamber 1, its temperature decreases, preventing direct high-temperature drying of the print. This, combined with the curing lamp 2, effectively completes the initial curing of the print. As the print moves through the long-channel drying chamber 1, the drying temperature gradually rises to a suitable level, achieving complete drying. Simultaneously, the air inlet filter filters the air to prevent dust from entering the long-channel drying chamber 1 and adhering to the undried print, ensuring print quality. Finally, the air extraction mechanism guides the dried air from the long-channel drying chamber 1 to the spray tower 3 for further treatment, eliminating toxic and harmful gases. Acidic or alkaline gases among the toxic and harmful gases can be treated using a liquid neutralization method, requiring the use of a neutralizing agent such as sodium hydroxide solution or sodium carbonate solution. The gas-liquid reaction is neutralized and eliminated through the spray tower 3. The working principle of the spray tower 3 is common knowledge among those skilled in the art and will not be elaborated here. Furthermore, depending on the specific composition of the toxic and harmful gases, activated carbon adsorption or other structures can be added to the air extraction mechanism to filter out these toxic and harmful components.

[0020] Furthermore, a conveyor belt 4 is provided at the bottom of the long channel drying box 1, and the upper side of the conveyor belt 4 extends laterally through the long channel drying box 1 so that the fabric entering the long channel drying box 1 travels on the conveyor belt 4. Conveyor belt 4 is located below the air intake filtration mechanism and the air extraction mechanism.

[0021] In this embodiment, the conveyor belt 4 can support the movement of the fabric with surface coating printing in the long channel drying box 1. Especially for coating printing on fabrics of single garments, the conveyor belt 4 can achieve stable transportation. It can also enable the two ends of the fabric to move continuously through other traction devices during the continuous drying process of long fabrics. The conveyor belt 4 only plays an auxiliary support role.

[0022] Furthermore, both ends of the long channel drying box 1 are provided with openings 5 ​​for the conveyor belt 4 and the fabric with surface coating printing to enter and exit, so that the conveyor belt 4 and the fabric with surface coating printing can move inside the long channel drying box 1.

[0023] Furthermore, the curing lamp 2 is a UV LED curing lamp, which can cure fabrics with surface coatings printed with ultraviolet light.

[0024] Furthermore, the air intake filtration mechanism includes a dust filter 6. The upper surface of the end of the long channel drying box 1 where the fabric extends is provided with an installation port for the dust filter 6. The dust filter 6 is fixed to the installation port by bolts. Air enters the long channel drying box 1 through the dust filter 6 in the installation port and is filtered by the dust filter 6. The dust filter 6 should be detachably installed in the installation port, such as by bolt connection or other conventional methods, so as to facilitate the periodic cleaning or replacement of the dust filter 6. A primary filter chamber 7 is located on the top outer side of the long-channel drying chamber 1, above the dust filter 6. The primary filter chamber 7 is detachably mounted to the long-channel drying chamber 1 using bolts. The top of the primary filter chamber 7 has an arc-shaped structure to increase the effective surface area. A ventilated protective net 8 with large holes is installed on the top of the primary filter chamber 7 to ensure better airflow while preventing larger objects from being carried into the primary filter chamber 7. An arc-shaped partition 9 is installed inside the primary filter chamber 7 between the protective net 8 and the dust filter 6. Outside the arc-shaped partition 9... With the curved surface facing upwards, the upper surface of the curved partition 9 is covered with dust-adhesive paper 10. The curved partition 9 is separated between the dust filter 6 and the protective net 8. The air entering through the protective net 8 needs to pass through the curved partition 9 to reach the dust filter 6. During this process, the dust can be captured by the dust-adhesive paper 10 and stuck to the dust-adhesive paper 10, which increases the dust filtration effect and avoids the dust filter 6 from being easily clogged by dust. Moreover, the curved structure of the curved partition 9 and the dust-adhesive paper 10 allows air to flow smoothly while increasing the effective surface area and improving the dust-adhesive effect.

[0025] Furthermore, an air collecting hood 11 is provided inside the long channel drying box 1 below the dust filter 6, and a uniform air outlet plate 12 is provided at the bottom of the air collecting hood 11. The uniform air outlet plate 12 is a grid plate. An electric heating wire 13 is installed inside the air collecting hood 11, below the dust filter 6.

[0026] Specifically, the air filtered by the dust filter 6 enters the air collection hood 11, is heated by the heating wire 13, and finally is evenly discharged through the uniform air outlet plate 12 to avoid local overheating. The temperature control of the heating wire 13 can be achieved by temperature sensors and controllers in the prior art, which are common knowledge well known to those skilled in the art and will not be described in detail here.

[0027] Furthermore, the air extraction mechanism includes an air extraction pipe 14. One end of the air extraction pipe 14 is connected to the end of the long channel drying box 1 through which the fabric enters, and the other end is connected to the bottom of the spray tower 3. A negative pressure fan 15 is installed inside the air extraction pipe 14 to draw out the air from inside the long channel drying box 1. That is, this device uses the negative pressure fan 15, or an air extraction device to extract the air from inside the long channel drying box 1, and sends the air, including toxic and harmful substances generated during the drying and printing process, into the spray tower 3 for neutralization treatment before harmless discharge.

[0028] In the above technical solution, the drying device for coating printing on fabric surface provided by this utility model has the following beneficial effects: This utility model's long-channel drying oven provides a gradually heating environment for effectively controlling the temperature of fabric surface coating printing. Combined with the curing effect of the curing lamp at the front end of the long-channel drying oven, the drying effect of the printing is effectively improved, avoiding the situation where direct high temperature acts on the coating printing and causes the printing to turn white. This device also filters the air through an air intake filter mechanism to prevent dust from entering the long-channel drying oven and adhering to the coating printing, affecting the printing quality. At the same time, the air extraction mechanism extracts the air from the long-channel drying oven during the drying process and sends it to a spray tower for environmentally friendly treatment. The toxic and harmful gases are neutralized by the spray neutralizing liquid before being harmlessly discharged, so as to avoid polluting the environment and affecting the health of workers.

[0029] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A drying apparatus for coating printing on fabric surfaces, characterized in that, include: The long channel drying box (1) allows the fabric with surface coating printing to enter from one end and extend from the other end; Curing lamp (2), the curing lamp (2) is set in the long channel drying box (1) at the upper surface of one end where the fabric enters, and is used to cure the fabric with surface coating printing by ultraviolet irradiation; An air intake filtration mechanism is provided on the upper surface of the end of the fabric that extends out of the long channel drying box (1) so that the air is filtered before entering the long channel drying box (1). An air extraction mechanism is provided on the long channel drying box (1) at one end where the fabric enters, for extracting air from the long channel drying box (1); And a spray tower (3), wherein the air extraction mechanism is connected to the bottom of the spray tower (3) to extract air from the long channel drying box (1) into the spray tower (3).

2. The drying apparatus for printing coatings on fabric surfaces according to claim 1, characterized in that, The bottom of the long channel drying box (1) is provided with a conveyor belt (4), and the upper side of the conveyor belt (4) passes through the long channel drying box (1) laterally so that the fabric entering the long channel drying box (1) moves on the conveyor belt (4); The conveyor belt (4) is located below the air intake filter mechanism and the air extraction mechanism.

3. The drying apparatus for coating printing on fabric surfaces according to claim 2, characterized in that, Both ends of the long-channel drying box (1) are provided with openings (5) for the conveyor belt (4) and the fabric with surface coating printing to enter and exit.

4. A drying apparatus for printing coatings on fabric surfaces according to claim 1, characterized in that, The curing lamp (2) is a UV LED curing lamp.

5. A drying apparatus for printing coatings on fabric surfaces according to claim 1, characterized in that, The air intake filtration mechanism includes a dust filter (6). The long channel drying box (1) has an installation port for installing the dust filter (6) on the upper surface of the end where the fabric extends. The dust filter (6) is fixed to the installation port by bolts. A primary filter chamber (7) is provided on the top of the outer side of the long channel drying box (1) above the dust filter (6). The primary filter chamber (7) is detachably installed on the long channel drying box (1) by bolts. The top of the primary filter chamber (7) is an arc-shaped structure. A ventilated protective net (8) is provided on the top of the primary filter chamber (7). An arc-shaped partition (9) is provided inside the primary filter chamber (7) between the protective net (8) and the dust filter (6). The outer arc surface of the arc-shaped partition (9) faces upward. Adhesive paper (10) is pasted on the upper surface of the arc-shaped partition (9).

6. A drying apparatus for coating printing on fabric surfaces according to claim 5, characterized in that, Inside the long channel drying box (1), below the dust filter (6), there is an air collecting hood (11), and at the bottom of the air collecting hood (11) is a uniform air outlet plate (12), which is a grid plate. An electric heating wire (13) is provided inside the air collecting hood (11) below the dust filter (6).

7. A drying apparatus for printing coatings on fabric surfaces according to claim 1, characterized in that, The air extraction mechanism includes an air extraction pipe (14), one end of which is connected to the end of the long channel drying box (1) through which the fabric enters, and the other end is connected to the bottom of the spray tower (3). A negative pressure fan (15) is installed inside the air extraction pipe (14) to draw out the air inside the long channel drying box (1).

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