Wax-printed cloth drying device and drying process

Abstract

The present invention provides a wax-printed fabric drying device and drying process, wherein the drying device comprises a drying room main body formed by a plurality of drying room units connected in series, wherein each drying room unit is provided with upper, middle and lower fabric channels in sequence from top to bottom, wherein the upper fabric channel blows hot air upward and downward, the middle fabric channel blows hot air upward only, and the lower fabric channel blows hot air upward only; the fabric in the upper fabric channel is suspended without support, a first mesh belt is horizontally provided in the middle fabric channel, and a second mesh belt is horizontally provided in the lower fabric channel; the fabric first passes horizontally through the upper fabric channel, then is driven downward by a fabric transmission roller, then is pressed down by a first fabric guide roller and is transported forward closely on the first mesh belt, then passes horizontally through the middle fabric channel, then is pressed down by a second fabric guide roller and is transported forward closely on the second mesh belt, and then passes horizontally through the lower fabric channel before being discharged. The present invention can solve the problem of color drag and staining in the wax-printing process.

Description

Technical Field

[0001] The invention relates to the technical field of dyeing and finishing, in particular to a wax-printed cloth drying device and a drying process. Background Art

[0002] The real wax printed fabric has long been loved by the African people because of its unique indigo background, natural and lively wax pattern and the printing effect that is completely consistent on both sides. The real wax printing uses wax liquid (natural rosin) to print the fabric, and this process is completed by a wax printing machine. At present, domestic manufacturers of real wax printed fabrics all use vertical rotary screen double-sided wax printing technology, and its process flow is as follows: pure cotton mercerized semi-finished products → weft stretching → double-sided wax printing → indigo dyeing → wax pattern throwing → wax pattern dyeing → dewaxing → secondary weft stretching → secondary overprinting → post-printing treatment → real wax printed fabric. In fact, the real wax printed fabric is an overprinted fabric after the fabric is printed and resist-dyed with wax on both sides, so the main indigo color of the fabric on the front and back is completely consistent, and there is no problem of color paste penetration. However, the production process of real wax printed fabric is multi-step, the process is long, the technology is complex, and the production cost is also high.

[0003] The wax-like printing system uses direct printing to obtain the wax-print style on the fabric. Its processing does not include complicated processes such as wax printing, indigo dyeing, wax removal and tracking overprinting. The specific process flow is as follows: pure cotton mercerized semi-finished products → weft straightening and stenting → single-sided direct printing → post-printing treatment (including printing drying, cooling, shaping and other processes) → wax-like printed cloth. Therefore, compared with real wax printing, wax-like printing has the advantages of fewer processes, shorter processes, simpler technology and lower production costs.

[0004] However, since ordinary wax-like printing adopts single-sided direct printing, that is, the printing paste is dyed on only one side of the cloth, and the printing paste is printed from one side of the cloth to the other side and solidified through the printing and drying process, so that printing is achieved on both sides of the cloth, the wax-like printing process has the following defects: after the printing paste is completely printed, the back of the fabric often has the problem of color drag and stain, thus forming obvious printing defects on the back of the fabric, especially large-scale dark and rich patterns, and in severe cases, it will also affect the front of the fabric. In order to solve the problem of color drag and stain that is easy to occur in the wax-like printing process, many manufacturers have reduced the effect of printing by reducing the hair effect of the printed fabric, selecting paste with poor rheological properties, reducing the shear force of the slurry feeding device on the printing paste, and reducing the amount of color paste. However, this method of improving the color drag and stain often results in the printing effect on the back of the fabric being not as bright as the front, resulting in the phenomenon of inconsistent printing effects on the front and back. Summary of the invention

[0005] One of the purposes of the present invention is to provide a wax-printed cloth drying device, which can solve the technical problem of easy color drag and stain in the existing wax-printing process without reducing the print-through effect.

[0006] A wax-printed cloth drying device, comprising a drying room main body;

[0007] The drying room body is formed by a plurality of drying room units connected in series along the direction of the production line. The first upper air duct and the first lower air duct are both horizontally arranged at the upper inner side of each drying room unit, the second upper air duct is only horizontally arranged at the middle of the drying room unit, and the third upper air duct is only horizontally arranged at the lower part of the drying room unit. All the upper air ducts are only provided with blowing ports at the bottom, and all the lower air ducts are only provided with blowing ports at the top. The blowing ports of the first upper air duct are arranged opposite to the blowing ports of the first lower air duct. An upper fabric channel is formed between the first upper air duct and the first lower air duct, a middle fabric channel is formed between the second upper air duct and the third upper air duct, and a lower fabric channel is formed between the third upper air duct and the inner bottom wall of the drying room unit.

[0008] The feed end of the drying room body is provided with a cloth inlet, and the cloth inlet is vertically aligned with the upper fabric channel;

[0009] A transmission system is arranged outside the discharge end of the drying room body, and the transmission system includes a power device and a main transmission box, and fabric transmission rollers, a first mesh belt main transmission roller, and a second mesh belt main transmission roller are respectively arranged transversely in the main transmission box, which can correspond to and transmit the fabrics in the upper, middle, and lower fabric channels one by one, and the fabric transmission rollers, the first mesh belt main transmission rollers, and the second mesh belt main transmission rollers are all driven to rotate by the power device;

[0010] The fabric with wax-like printing paste only on the front side enters the main body of the drying room from the fabric inlet and passes horizontally through the upper fabric channel and then is wound around the fabric transmission roller and driven forward by the fabric transmission roller;

[0011] The fabric is suspended horizontally in an upper fabric channel in the main body of the drying room without contacting the upper and lower parts;

[0012] An auxiliary transmission box is arranged outside the feeding end of the drying room body, and a first mesh belt driven roller symmetrical to the first mesh belt main transmission roller and a second mesh belt driven roller symmetrical to the second mesh belt main transmission roller are arranged in the auxiliary transmission box, a first mesh belt that can be circulated and rotated is tensioned between the first mesh belt main transmission roller and the first mesh belt driven roller, and a second mesh belt that can be circulated and rotated is tensioned between the second mesh belt main transmission roller and the second mesh belt driven roller, and the first mesh belt and the second mesh belt are respectively arranged to horizontally penetrate the middle fabric channel and the lower fabric channel;

[0013] A first cloth guide roller is fixedly arranged on the side wall of the main transmission box facing the drying chamber main body, and is used to press the cloth bypassing the cloth transmission roller down to the middle cloth channel. The first cloth guide roller is located above the first mesh belt, and its roller surface is nearly tangent to the upper surface of the mesh belt of the first mesh belt.

[0014] A second cloth guide roller is fixedly arranged on the side wall of the auxiliary transmission box facing the drying chamber main body, and is used to press the cloth bypassing the driven roller of the first mesh belt down to the lower fabric channel. The second cloth guide roller is located below the first mesh belt and above the second mesh belt, and the roller surface of the second cloth guide roller is tangent to and fits with the upper surface of the mesh belt of the second mesh belt.

[0015] The discharging end of the main transmission box is provided with a cloth outlet, and the cloth outlet is vertically aligned with the lower fabric channel.

[0016] The wax-printed cloth drying device of the present invention is provided with an upper, middle and lower three-layer drying structure. The upper layer adopts hot air to blow the fabric on both the front and back sides. At the same time, the fabric is suspended without contact at the top and bottom, and the fabric is directly driven forward by the fabric driving roller, which can effectively avoid the phenomenon of color drag and contamination in the early stage of the drying process, and at the same time can ensure good through-printing of the fabric. Moreover, since the color paste solidification effect of the front side of the fabric is the best after the fabric passes through the upper fabric channel, the front side of the fabric is in contact with the first mesh belt in the middle fabric channel, and the phenomenon of color drag is not easy to occur; the middle layer adopts hot air to blow only the fabric The reverse side of the fabric is blown by hot air to fix the color of the wet reverse side of the fabric in time to avoid the subsequent color drag and stain; the lower layer only uses hot air to blow the front side of the fabric to supplement the drying of the front side of the fabric. After the three-layer continuous drying of the wax-printed cloth drying device of the present invention, the colors of the front and back sides of the fabric are more vivid and saturated. At the same time, the colors of the front and back sides can be completely consistent, and the printing effect is comparable to that of real wax-printed cloth. In addition, in the present invention, only the upper layer of fabric is suspended and transported, and the middle and lower layers of fabric are supported and transported by the mesh belt. The fabric is transported smoothly, ensuring that the fabric has good flatness and is dried more evenly.

[0017] Preferably, the fabric driving roller is a drying drum, and high temperature accelerates the penetration of the color paste, greatly reducing the process time, so that the divergence process quickly transitions to the penetration process in one go. In the specific implementation process, steam is passed through the drying drum for heat preservation, which is energy-saving and environmentally friendly. At this time, the internal temperature of the drying drum is usually 100-120°C.

[0018] Preferably, a bending roller is transversely arranged between the drying room body and the main transmission box, the roller surface of the bending roller is tangent to the reverse side of the fabric in the upper fabric channel, and the bending roller can smooth the fabric.

[0019] Preferably, at least one of the first mesh belt and the second mesh belt is preferably a high-temperature resistant Teflon large-mesh conveyor belt. Compared with a nylon conveyor belt, it has better ventilation effect, is conducive to hot air convection, improves drying efficiency, and is also cheaper.

[0020] Preferably, a pair of deviation-correcting rollers are transversely mounted in the main transmission box, and the lower mesh belt of the first mesh belt passes between the two deviation-correcting rollers and is tangent to the two deviation-correcting rollers, so that the first mesh belt can be deflected by the two deviation-correcting rollers.

[0021] Preferably, another pair of deviation-correcting rollers is transversely mounted in the auxiliary transmission box, and the lower mesh belt of the second mesh belt passes between the two deviation-correcting rollers and is tangent to the two deviation-correcting rollers, so that the second mesh belt can be corrected by the two deviation-correcting rollers.

[0022] Preferably, the power device of the transmission system is installed on the top of the main transmission box, and the first transmission belt is mounted on the output shaft of the power device. The first transmission belt is S-shaped and wound between the first mesh belt main drive roller and the second mesh belt main drive roller. Only one transmission belt is needed to realize the synchronous transmission of the first mesh belt main drive roller and the second mesh belt main drive roller, which saves space and has a more reasonable design.

[0023] Preferably, each drying room unit is also provided with a fan, which is arranged on either side of the left or right side of the fabric channel, the air outlet of the fan is arranged toward the fabric channel, and a branch air duct is arranged at the air outlet of the fan, the first upper air duct, the first lower air duct, the second upper air duct and the third upper air duct are all connected to the branch air duct; the fans of two adjacent drying units are respectively arranged on the opposite sides of the fabric channel, and the structural design of the drying room main body is reasonable, energy-saving, and the drying is uniform.

[0024] Preferably, a drying room exhaust system is also provided on the top of the drying room main body, and the tops of all drying room units are connected to the drying room exhaust system pipeline, which is conducive to timely exhausting the hot and humid air in the drying room main body.

[0025] Preferably, the cloth outlet end of the main transmission box is also provided with a drying room cloth dropping device. The fabric is dropped through the drying room cloth dropping device and cooled during the dropping process.

[0026] Preferably, the effective width of the drying room main body is 2800 mm, the width of the fabric is 1200 mm, and two wax-like fabrics can be dried in parallel in the drying room main body at the same time.

[0027] Preferably, the length of the drying room body is greater than 19 meters, which increases the fabric capacity, increases the process time, and makes the fabric color more saturated.

[0028] The second object of the present invention is to provide a wax-printed cloth drying process, which is to feed a fabric with only the front side dyed with wax-printing color paste into the above-mentioned wax-printed cloth drying device for drying to obtain the wax-printed cloth; wherein the running speed of the fabric in the wax-printed cloth drying device is controlled at 40 to 50 meters per minute, and the temperature in the main body of the drying room is controlled at 150 to 170°C. The obtained wax-printed cloth has the same printing effect on the front and back sides, bright colors, and the printing effect is comparable to that of real wax-printed cloth. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a structural schematic diagram of a wax-printed cloth drying device of the present invention;

[0030] Figure 2 The wax-printed cloth drying device of the present invention is Figure 1 Schematic diagram of the cross-sectional structure along the AA line;

[0031] Figure 3 The wax-printed cloth drying device of the present invention is Figure 1 Schematic diagram of the cross-sectional structure along the middle BB line;

[0032] in Figure 1 to Figure 3 The directions indicated by the arrows are the hot air flow directions. DETAILED DESCRIPTION

[0033] Now, the preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings:

[0034] like Figure 1 As shown, a wax-printed cloth drying device comprises a drying room main body 1;

[0035] The drying room body 1 is composed of a plurality of drying room units 11 connected in series along the production line direction. A first upper air duct 111 and a first lower air duct 112 are horizontally arranged at the upper inner part of each drying room unit 11, only a second upper air duct 113 is horizontally arranged at the middle of the drying room unit 11, and only a third upper air duct 114 is horizontally arranged at the lower part of the drying room unit 11. All the upper air ducts (111, 113, 114) are only provided with blowing ports (1110, 1130, 1141) at the bottom. 40), all the downwind ducts 112 are only provided with a blowing port 1120 at the top, the blowing port 1110 of the first upwind duct 111 is arranged opposite to the blowing port 1120 of the first downwind duct 112, an upper fabric channel 2 is formed between the first upwind duct 111 and the first downwind duct 112, a middle fabric channel 3 is formed between the second upwind duct 113 and the third upwind duct 114, and a lower fabric channel 4 is formed between the third upwind duct 114 and the inner bottom wall 110 of the drying room unit;

[0036] The feed end of the drying room body 1 is provided with a cloth inlet 101, and the cloth inlet 101 is vertically aligned with the upper fabric channel 2;

[0037] A transmission system 5 is arranged outside the discharge end of the drying room body 1, and the transmission system 5 includes a power device 51 and a main transmission box 52. Fabric transmission rollers 53, a first mesh belt main transmission roller 54, and a second mesh belt main transmission roller 55 are respectively and horizontally arranged in the main transmission box 52, which can transmit the fabrics 100 in the upper, middle, and lower fabric channels (2, 3, 4) one by one. The fabric transmission rollers 53, the first mesh belt main transmission rollers 54, and the second mesh belt main transmission rollers 55 are all driven by the power device 51 to rotate.

[0038] The fabric 100 with the wax-printing paste only on the front side enters the drying room main body 1 through the fabric inlet and horizontally passes through the upper fabric channel 2 and then is wound around the fabric driving roller 53 and driven forward by the fabric driving roller 53;

[0039] The fabric 100 is suspended horizontally in an upper fabric channel 2 in a drying room body 1 without contacting the upper and lower parts;

[0040] An auxiliary transmission box 6 is arranged outside the feeding end of the drying room body 1, and a first mesh belt driven roller 61 symmetrical to the first mesh belt main transmission roller 54 and a second mesh belt driven roller 62 symmetrical to the second mesh belt main transmission roller 55 are arranged in the auxiliary transmission box 6, a first mesh belt 7 that can be circulated and rotated is tensioned between the first mesh belt main transmission roller 54 and the first mesh belt driven roller 61, and a second mesh belt 8 that can be circulated and rotated is tensioned between the second mesh belt main transmission roller 55 and the second mesh belt driven roller 62, and the first mesh belt 7 and the second mesh belt 8 are horizontally arranged to penetrate the middle fabric channel 3 and the lower fabric channel 4 respectively;

[0041] A first cloth guide roller 9 is fixedly provided on the side wall of the main transmission box 52 facing the drying room main body 1, and is used to press the cloth 100 that has passed by the cloth transmission roller 53 down to the middle cloth channel 3. The first cloth guide roller 9 is located above the first mesh belt 7, and its roller surface is nearly tangent to the upper surface of the mesh belt of the first mesh belt 7.

[0042] A second cloth guide roller 10 is fixedly arranged on the side wall of the auxiliary transmission box 6 facing the drying room main body 1, and is used to press the cloth 100 that has passed the first mesh belt driven roller 61 down to the lower fabric channel 4. The second cloth guide roller 10 is located below the first mesh belt 7 and above the second mesh belt 8. The roller surface of the second cloth guide roller 10 is nearly tangent to the upper surface of the mesh belt of the second mesh belt 8.

[0043] The material discharging end of the main transmission box 52 is provided with a cloth outlet 521 , and the cloth outlet 521 is vertically aligned with the lower fabric channel 4 .

[0044] During operation, the fabric 100, which is dyed with wax-like printing paste only on the front side, is suspended horizontally without contact and passes through the upper fabric channel 2, and then is wound around the fabric driving roller 53 and driven forward by the fabric driving roller 53. Since the fabric 100 is suspended horizontally without contact, it will not affect the divergence of the back side of the fabric and will not drag the color. Furthermore, since the fabric 100 is blown by the upper and lower hot air to be dried on both sides during the process of passing through the upper fabric channel 2, the wax-like printing paste on the front side of the fabric 100 is heated and directed to diverge from the front side to the back side. At the same time, the paste on the surfaces of the front and back sides of the fabric 100 is better cured than the paste inside the fabric. Moreover, the paste on the front surface of the fabric 100 has the best curing effect. In addition, the fabric 100 is directly transmitted by the fabric driving roller 53, and the tension between the fabric 100 and the fabric driving roller 53 is relatively large, and the fabric 100 is The tension given by the fabric driving roller 53 will make its fiber texture coarser, so that the imitation wax printing color paste that has not yet dried inside the fabric 100 will further diverge and penetrate to the back side of the fabric 100, ensuring a good through-printing effect; then, the fabric 100 is pressed down by the first cloth guide roller 9 and pressed against the upper surface of the web belt of the first mesh belt 7, and is driven by the first mesh belt to horizontally pass through the middle fabric channel 3. When the fabric 100 passes through the middle fabric channel 3, its back side faces upward, and only the back side of the fabric is blown with hot air for drying and fixing the color; then, the fabric 100 is pressed down by the second cloth guide roller 10 and pressed against the upper surface of the web belt of the second mesh belt 8, and is driven by the second mesh belt to horizontally pass through the lower fabric channel 4. When the fabric 100 passes through the lower fabric channel 4, its front side faces upward, and only the front side of the fabric 100 is blown with hot air for supplementary drying, and then the cloth can be discharged, that is, the imitation wax printed cloth.

[0045] The wax-printing cloth drying device of the present invention is provided with an upper, middle and lower three-layer drying structure. The upper layer uses hot air to blow the fabric 100 on both the front and back sides. At the same time, the fabric 100 is suspended without contact at the top and bottom, and the fabric 100 is directly driven forward by the fabric driving roller 53, which can effectively avoid the color drag and contamination phenomenon in the early stage of the drying process, and at the same time can ensure good through-printing of the fabric. In addition, since the color paste curing effect of the front side of the fabric 100 is the best after passing through the upper fabric channel 2, the front side of the fabric 100 is in contact with the first mesh belt 7 in the middle fabric channel 3, and the color drag phenomenon is not easy to occur; the middle fabric channel 3 is Hot air is blown only on the back side of the fabric, and the wet back side of the fabric is fixed in time to avoid subsequent color drag and contamination; hot air is blown only on the front side of the fabric in the lower layer to supplement the drying of the front side of the fabric, and the wax-printed cloth drying device of the present invention is used for three-layer continuous drying, so that the colors of the front and back sides of the fabric are more vivid and saturated, and at the same time, the colors of the front and back sides can be completely consistent, and the printing effect is comparable to that of real wax printed cloth; in addition, in the present invention, only the upper layer of fabric is suspended and transported, and the middle and lower layers of fabric are supported and transported by mesh belts, so that the fabric 100 is transported smoothly, ensuring that the fabric 100 has good flatness and is dried more evenly.

[0046] Preferably, the fabric drive roller 53 is a drying drum. High temperature accelerates the penetration of the color paste, greatly reducing the process time, so that the divergence process quickly transitions to the penetration process in one go. In the specific implementation process, steam is passed through the drying drum for heat preservation, which is energy-saving and environmentally friendly. At this time, the temperature inside the drying drum is usually 100-120°C. Of course, the fabric drive roller 53 of the present invention can also be an ordinary drive roller (normal temperature).

[0047] Preferably, Figure 1 As shown, a bending roller 200 is also horizontally arranged between the drying room body 1 and the main transmission box 52 , and the roller surface of the bending roller 200 is tangent to the reverse side of the fabric 100 in the upper fabric channel, and the bending roller 200 can smooth the fabric 100 .

[0048] Preferably, at least one of the first mesh belt 7 and the second mesh belt 8 is preferably a high temperature resistant Teflon large mesh conveyor belt, which has better ventilation effect than a nylon conveyor belt, is conducive to hot air convection, improves drying efficiency, and is also cheaper. Of course, the first mesh belt 7 and the second mesh belt 8 of the present invention can also be a nylon conveyor belt or other common fabric drying conveyor mesh belt.

[0049] Preferably, Figure 1 As shown, a pair of deviation-correcting rollers 300 are also horizontally arranged in the main transmission box 52, and the lower mesh belt of the first mesh belt 7 passes between the two deviation-correcting rollers 300 and is tangent to the two deviation-correcting rollers 300, so that the first mesh belt 7 can be corrected by the two deviation-correcting rollers 300.

[0050] Preferably, Figure 1 As shown, another pair of deviation-correcting rollers 400 are horizontally mounted in the auxiliary transmission box 6, and the lower mesh belt of the second mesh belt 8 passes between the two deviation-correcting rollers 400 and is tangent to the two deviation-correcting rollers 400, so that the second mesh belt 8 can be corrected by the two deviation-correcting rollers 400.

[0051] Preferably, Figure 1 As shown, the power device 51 of the transmission system 5 is installed on the top of the main transmission box 52, and the output shaft of the power device 51 is provided with a first transmission belt 56, which is wound in an S shape between the first mesh belt main transmission roller 54 and the second mesh belt main transmission roller 55. Only one transmission belt 56 is needed to realize the synchronous transmission of the first mesh belt main transmission roller 54 and the second mesh belt main transmission roller 55, which saves space and has a more reasonable design. Of course, the power device 51 of the present invention can also drive the first mesh belt main transmission roller 54 and the second mesh belt main transmission roller 55 respectively through two transmission belts.

[0052] Preferably, combined Figure 1 to Figure 3Each drying room unit 11 is further provided with a fan 117, which is arranged on either side of the left or right side of the fabric channel, the air outlet of the fan 117 is arranged toward the fabric channel, and a branch air duct 118 is arranged at the air outlet of the fan 117, the first upper air duct 111, the first lower air duct 112, the second upper air duct 113 and the third upper air duct 114 are all connected to the branch air duct 118; the fans 117 of two adjacent drying units 11 are respectively arranged on opposite sides of the fabric channel (2, 3, 4), the structural design of the drying room body 1 is reasonable, energy-saving, and uniform drying.

[0053] Preferably, Figure 1 As shown, a drying room exhaust system 500 is also provided on the top of the drying room main body 1, and the tops of all drying room units 11 are connected to the drying room exhaust system 500 pipeline, which is conducive to timely exhausting the hot and humid air in the drying room main body 1.

[0054] Preferably, Figure 1 As shown, a drying room cloth dropping device 600 is also provided at the cloth outlet end of the main transmission box 52. The fabric 100 is dropped through the drying room cloth dropping device 600 and cooled during the dropping process.

[0055] Preferably, the effective width of the drying room body 1 is 2800 mm, the width of the fabric 100 is 1200 mm, and two wax-like fabrics can be dried in parallel in the drying room body 1. Of course, the effective width of the drying room body 1 can be adjusted as needed.

[0056] Preferably, the length of the drying room body 1 is greater than 19 meters, which increases the fabric capacity, increases the process time, and makes the fabric color more saturated. Of course, the length of the drying room body 1 can be adjusted as needed.

[0057] The above-mentioned wax-printed cloth drying device of the present invention is used to carry out a wax-printed cloth drying process, which is to feed a fabric 100 with only the front side dyed with wax-printing color paste into the above-mentioned wax-printed cloth drying device for drying to obtain the wax-printed cloth; wherein the running speed of the fabric in the wax-printed cloth drying device is controlled at 40-50 m / min, and the temperature in the main body of the drying room is controlled at 150-170°C. The obtained wax-printed cloth has consistent printing effects on the front and back sides, bright colors, and a printing effect comparable to that of real wax-printed cloth.

Claims

1. A wax-printed cloth drying device, comprising a drying room main body; The drying room body is composed of several drying room units connected in series along the production line direction, and is characterized by: The first upper air duct and the first lower air duct are both horizontally arranged at the upper inner side of each drying room unit, the second upper air duct is only horizontally arranged at the middle of the drying room unit, and the third upper air duct is only horizontally arranged at the lower part of the drying room unit. All the upper air ducts are only provided with air outlets at the bottom, and all the lower air ducts are only provided with air outlets at the top. The air outlet of the first upper air duct is arranged opposite to the air outlet of the first lower air duct. An upper fabric channel is formed between the first upper air duct and the first lower air duct, a middle fabric channel is formed between the second upper air duct and the third upper air duct, and a lower fabric channel is formed between the third upper air duct and the inner bottom wall of the drying room unit. The feed end of the drying room body is provided with a cloth inlet, and the cloth inlet is vertically aligned with the upper fabric channel; A transmission system is arranged outside the discharge end of the drying room body, and the transmission system includes a power device and a main transmission box, and fabric transmission rollers, a first mesh belt main transmission roller, and a second mesh belt main transmission roller are respectively arranged transversely in the main transmission box, which can correspond to and transmit the fabrics in the upper, middle, and lower fabric channels one by one, and the fabric transmission rollers, the first mesh belt main transmission rollers, and the second mesh belt main transmission rollers are all driven to rotate by the power device; The fabric with wax-like printing paste only on the front side enters the main body of the drying room from the fabric inlet and passes horizontally through the upper fabric channel and then is wound around the fabric transmission roller and driven forward by the fabric transmission roller; The fabric is suspended horizontally in an upper fabric channel in the main body of the drying room without contacting the upper and lower parts; An auxiliary transmission box is arranged outside the feeding end of the drying room body, and a first mesh belt driven roller symmetrical to the first mesh belt main transmission roller and a second mesh belt driven roller symmetrical to the second mesh belt main transmission roller are arranged in the auxiliary transmission box, a first mesh belt that can be circulated and rotated is tensioned between the first mesh belt main transmission roller and the first mesh belt driven roller, and a second mesh belt that can be circulated and rotated is tensioned between the second mesh belt main transmission roller and the second mesh belt driven roller, and the first mesh belt and the second mesh belt are respectively arranged to horizontally penetrate the middle fabric channel and the lower fabric channel; A first cloth guide roller is fixedly arranged on the side wall of the main transmission box facing the drying chamber main body, and is used to press the cloth bypassing the cloth transmission roller down to the middle cloth channel. The first cloth guide roller is located above the first mesh belt, and its roller surface is nearly tangent to the upper surface of the mesh belt of the first mesh belt. A second cloth guide roller is fixedly arranged on the side wall of the auxiliary transmission box facing the drying chamber main body, and is used to press the cloth bypassing the driven roller of the first mesh belt down to the lower fabric channel. The second cloth guide roller is located below the first mesh belt and above the second mesh belt, and the roller surface of the second cloth guide roller is tangent to and fits with the upper surface of the mesh belt of the second mesh belt. The discharging end of the main transmission box is provided with a cloth outlet, and the cloth outlet is vertically aligned with the lower fabric channel.

2. The wax-printed cloth drying device according to claim 1, characterized in that: The fabric driving roller is a drying cylinder.

3. The wax-printed cloth drying device according to claim 1, characterized in that: A bending roller is also transversely arranged between the drying room main body and the main transmission box, and the roller surface of the bending roller is tangent to the reverse side of the fabric in the upper fabric channel.

4. The wax-printed cloth drying device according to claim 1, characterized in that: At least one of the first mesh belt and the second mesh belt is a high temperature resistant Teflon large mesh conveyor belt.

5. The wax-printed cloth drying device according to claim 1, characterized in that: A pair of correcting rollers are also horizontally mounted in the main transmission box, and the lower mesh belt of the first mesh belt passes between the pair of correcting rollers and is tangent to the pair of correcting rollers; another pair of correcting rollers are horizontally mounted in the auxiliary transmission box, and the lower mesh belt of the second mesh belt passes between the other pair of correcting rollers and is tangent to the other pair of correcting rollers.

6. The wax-printed cloth drying device according to claim 1, characterized in that: The power device of the transmission system is installed on the top of the main transmission box. The output shaft of the power device is sleeved with a first transmission belt, which is wound in an S shape between the first mesh belt main transmission roller and the second mesh belt main transmission roller.

7. The wax-printed cloth drying device according to claim 1, characterized in that: A fan is also provided in each drying room unit, and the fan is arranged on either side of the left or right side of the fabric channel. The air outlet of the fan is arranged toward the fabric channel, and a branch air duct is arranged at the air outlet of the fan. The first upper air duct, the first lower air duct, the second upper air duct and the third upper air duct are all connected to the branch air duct; the fans of two adjacent drying units are respectively arranged on opposite sides of the fabric channel.

8. The wax-printed cloth drying device according to claim 1, characterized in that: The cloth outlet end of the main transmission box is also provided with a drying room cloth dropping device.

9. The wax-printed cloth drying device according to claim 1, characterized in that: The effective width of the drying room main body is 2800 mm, the width of the fabric is 1200 mm, two wax-like fabrics are dried in parallel in the drying room main body at the same time, and the length of the drying room main body is greater than 19 meters.

10. A wax-printed cloth drying process, comprising feeding a fabric dyed with wax-printed color paste only on the front side into a wax-printed cloth drying device as claimed in any one of claims 1 to 9 for drying to obtain wax-printed cloth; wherein: The running speed of the fabric in the wax-printed cloth drying device is controlled at 40-50 m / min, and the temperature in the drying room body is controlled at 150-170°C.

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