Gift packaging paper intaglio printing equipment and printing process

Abstract

The gift packaging paper intaglio printing equipment comprises a rack and an ink machine, the ink machine is assembled on the rack, a workbench is fixedly assembled in the rack, a printing mechanism is assembled on the workbench, a plurality of conveying rollers are assembled on the rack, a drying mechanism is assembled on the rack, and the printing mechanism comprises an ink bucket and a support. The printing ink bucket is assembled on the workbench, the printing ink roller is rotationally assembled on the inner side of the rack and located on the inner side of the printing ink bucket, the servo motor is fixedly assembled on the workbench, the support is fixedly assembled on the workbench, the ink scraping blade is fixedly assembled on the support, the pressing roller is rotationally assembled on the inner side of the rack and located on the printing ink roller, and the drying mechanism comprises two U-shaped covers. The two U-shaped covers are fixedly assembled on the machine frame and are arranged in an inverted mode, one U-shaped cover is located on the other U-shaped cover, a plurality of guide rollers are assembled between the two U-shaped covers and are rotationally assembled on the machine frame, and a plurality of electric heating pipes are fixedly assembled on the inner side of the U-shaped cover on the outer side.

Description

Technical Field

[0001] The invention belongs to the technical field of gravure printing, and in particular relates to gravure printing equipment and a printing process for gift wrapping paper. Background Art

[0002] As an efficient and flexible printing equipment, gravure printing press plays a vital role in the packaging paper printing industry. With the continuous growth of market demand for packaging paper and the increasing requirements of consumers for packaging quality and environmental protection, the application background technology of gravure printing press in packaging paper printing is also constantly innovating and developing; In the traditional gift wrapping paper gravure printing industry, printing equipment often faces many challenges. During the printing process, the drying process is an indispensable part of the gravure printing process, which is directly related to the drying speed and drying quality of the printed product. The existing gravure printing equipment is usually external, which is installed between two continuously printing gravure printing machines. Such a setting makes the arrangement between the various equipments relatively loose, which greatly reduces the production space of the factory. Therefore, a gift wrapping paper gravure printing equipment is provided to solve the above problems. Summary of the invention

[0003] The purpose of the present invention is to provide a gift wrapping paper gravure printing device and a printing process to solve the problems existing in the background technology.

[0004] In order to achieve the above technical objectives, the technical solution adopted by the present invention is as follows: A gift wrapping paper gravure printing device comprises a frame and an ink machine, wherein the ink machine is mounted inside the frame, a workbench is fixedly mounted on the lower side of the frame, a printing mechanism is mounted on the upper end of the workbench, a plurality of conveying rollers are mounted inside the frame, and a drying mechanism is mounted inside the frame; The printing mechanism comprises an ink fountain and a bracket, wherein the ink fountain is mounted on the upper end of the workbench, the output end of the ink machine is connected to the lower side of the ink fountain, an ink roller is rotatably mounted on the inner side of the frame, and the ink roller is located above the inner side of the ink fountain, a servo motor is fixedly mounted on the upper end of the workbench, and the output end of the servo motor is transmission-connected to the ink roller, the bracket is fixedly mounted on the upper end of the workbench, a scraper is fixedly mounted on the bracket, and the scraper matches the side of the ink roller, a pressure roller is rotatably mounted on the inner side of the frame, and the pressure roller is located above the ink roller; The drying mechanism includes two U-shaped covers, both of which are fixedly mounted on the inner side of the frame, and both of which are inverted, with one of the U-shaped covers located on the inner side of the other U-shaped cover, and a number of guide rollers are mounted between the two U-shaped covers, and the guide rollers are rotatably mounted on the inner side of the frame, and a number of electric heating tubes are fixedly mounted on the inner side of the outer U-shaped cover.

[0005] Preferably, an ink return fountain is fixedly provided on the upper end of the workbench, the ink fountain is fixedly assembled on the inner side of the ink return fountain, and the ink machine input end is connected to the bottom of the ink return fountain.

[0006] Preferably, a pressure mechanism is installed between the front and rear sides of the upper end of the pressure roller and the frame, and the pressure mechanism includes a mounting frame, the mounting frame is equipped with a connecting block, the pressure roller is rotatably equipped with a top frame, a telescopic rod is fixedly installed between the top frame and the connecting block, a spring is fixedly installed between the top frame and the connecting block, the spring is sleeved on the outside of the telescopic rod, a sliding rod is fixedly installed on the upper end of the top frame, and the sliding rod is slidably assembled with the connecting block up and down.

[0007] Preferably, an adjustment component is installed between the connecting block and the mounting frame, and the adjustment component includes an adjustment box and a screw rod, the adjustment box is fixedly installed on the mounting frame, the screw rod is fixedly installed on the upper end of the connecting block, a first bevel gear is rotatably installed on the lower end of the adjusting box, a second bevel gear is rotatably installed on the side of the adjusting box, the first bevel gear is meshed with the second bevel gear, a threaded hole is provided in the middle of the first bevel gear, the screw rod is threadedly rotatably connected to the first bevel gear through the threaded hole, a turntable is rotatably provided on the side of the adjusting box, and the turntable is drivingly connected to the second bevel gear.

[0008] Preferably, the first bevel gear is fixedly equipped with a transmission gear, the inner side of the adjustment box is rotatably equipped with a driving gear, the driving gear is fixedly connected to the turntable, and a rotating shaft is rotatably equipped between the two adjustment boxes, and both ends of the rotating shaft are respectively fixedly connected to the two driving gears.

[0009] Preferably, the side of the frame is equipped with an exhaust gas pretreatment mechanism, and the exhaust gas pretreatment mechanism includes an exhaust gas treatment box, which is installed on the side of the frame. A collecting cover is fixedly installed on the upper end of the outer U-shaped cover, and a through hole connected to the collecting cover is opened on the upper end of the outer U-shaped cover. The collecting cover is connected to the exhaust gas treatment box, and the exhaust gas treatment box is filled with activated carbon.

[0010] Preferably, a cooling box is fixedly mounted on the upper end of the exhaust gas treatment box, and a coolant is filled inside the cooling box. A serpentine tube is fixedly mounted inside the cooling box, and one end of the serpentine tube is connected to the collecting hood, and the other end of the serpentine tube is connected to the exhaust gas treatment box. A cooling box is fixedly mounted on the side of the cooling box, and a semiconductor cooling plate is mounted inside the cooling box, and the cooling end of the semiconductor cooling plate faces one side of the cooling box. A heat dissipation box is fixedly mounted on the side of the cooling box, and a plurality of evenly distributed heat dissipation fins are fixedly mounted inside the heat dissipation box, and a heat dissipation fan is mounted inside the heat dissipation box.

[0011] A gravure printing process for gift wrapping paper comprises the following steps: S1: First, the base paper is placed in a gravure printing device and flexographically printed twice with bright red ink, wherein the flexographic mesh numbers are 150 mesh and 180 mesh respectively, and the machine speed is 35 meters per minute, so that the bottom red basic printing color is full, and then the drying temperature is controlled at 120° C. for drying to obtain a semi-finished product; S2: Place the semi-finished product into the gravure printing equipment and use a mixed ink of bright red ink, SJG309 rose red paste and matte oil to perform a 120-mesh gravure printing. The machine speed is 35 meters per minute. The drying temperature is controlled at 120°C for drying to complete the base color printing. The mixing ratio of bright red ink, SJG309 rose red paste and matte oil is 8:1:1.

[0012] S3: Use 180 mesh gravure printing equipment to perform gravure printing again with anti-scratch matte oil, the machine speed is 35 meters per minute, and the drying temperature is controlled at 120° C. for drying; S4: then the back of the printed paper is treated with water; S5: Use steel roller and wool roller to press the printed paper to obtain the finished product.

[0013] Advantages of the present invention: 1. The pressure mechanism can adjust the pressure between the pressure roller and the ink roller through the adjustment component, ensuring stable printing effect under different printing requirements and avoiding printing quality problems caused by excessive or insufficient pressure. The pressure mechanism can adapt to packaging paper of different materials, thicknesses and printing requirements, and ensure the best printing effect by adjusting the pressure, thus enhancing the flexibility and versatility of the equipment; 2. The drying mechanism adopts an inverted U-shaped cover and electric heating tube design, which can concentrate heat and reduce energy loss, thereby improving drying efficiency and ensuring that the packaging paper printed with ink patterns can be dried quickly and evenly. The drying mechanism can ensure the firmness and clarity of the printed pattern and avoid printing quality problems caused by insufficient drying; 3. The waste gas pretreatment mechanism uses activated carbon to initially treat the waste gas, which can significantly reduce the content of harmful substances in the waste gas and reduce pollution to the environment. The pretreated waste gas greatly reduces the content of harmful substances, which improves the processing efficiency of subsequent treatment equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present invention is further illustrated by means of the non-limiting examples given in the accompanying drawings.

[0015] Figure 1 The structure of the gravure printing equipment for gift wrapping paper of the present invention is shown as follows Figure 1 ; Figure 2The cross-sectional structure of a gravure printing device for gift wrapping paper of the present invention is shown in FIG. Figure 1 ; Figure 3 for Figure 2 The enlarged schematic diagram of point A in the middle; Figure 4 The cross-sectional structure of a gravure printing device for gift wrapping paper of the present invention is shown in FIG. Figure 2 ; Figure 5 for Figure 4 The enlarged schematic diagram of point B in the middle; Figure 6 for Figure 4 The enlarged schematic diagram of the center C; Figure 7 for Figure 4 The enlarged schematic diagram of point D in the middle; Figure 8 It is a partial structural schematic diagram of a gift wrapping paper gravure printing device of the present invention; Fig. 9 The structure of the gravure printing equipment for gift wrapping paper of the present invention is shown as follows Figure 2 ; Fig.10 The cross-sectional structure of a gravure printing device for gift wrapping paper of the present invention is shown in FIG. Figure 3 ; The main component symbols are described as follows: Frame 1, ink machine 11, workbench 12, ink fountain 121, bracket 122, ink roller 123, servo motor 124, scraper 125, pressure roller 126, ink return fountain 127, conveying roller 13, U-shaped cover 14, guide roller 141, electric heating tube 142, mounting frame 15, connecting block 151, top frame 152, telescopic rod 153, spring 154, slide bar 155, adjusting box 16, screw 161, first bevel gear 162, second bevel gear 163, turntable 164, transmission gear 165, driving gear 166, rotating shaft 167, exhaust gas treatment box 17, collecting cover 171, cooling box 172, serpentine pipe 173, cooling box 174, heat dissipation box 175. DETAILED DESCRIPTION

[0016] In order to enable those skilled in the art to better understand the present invention, the technical solution of the present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0017] like Figure 1-2As shown, a gift wrapping paper gravure printing device of the present invention comprises a frame 1 and an ink machine 11, the ink machine 11 is mounted inside the frame 1, a workbench 12 is fixedly mounted on the lower side of the frame 1, a printing mechanism is mounted on the upper end of the workbench 12, a plurality of conveying rollers 13 are mounted inside the frame 1, the plurality of conveying rollers 13 are used for conveying wrapping paper, and a drying mechanism is mounted inside the frame 1; like Figure 7-8 As shown, the printing mechanism includes an ink fountain 121 and a bracket 122. The ink fountain 121 is mounted on the upper end of the workbench 12. The output end of the ink machine 11 is connected to the lower side of the ink fountain 121. An ink return fountain 127 is fixedly provided on the upper end of the workbench 12. The ink fountain 121 is fixedly mounted on the inner side of the ink return fountain 127. The input end of the ink machine 11 is connected to the bottom of the ink return fountain 127. The ink machine 11 can continuously transport ink to the ink fountain 121. The ink return fountain 127 can recycle the ink in the ink fountain 121 and can also recycle the excess ink that seeps out or drips. The excess ink is collected, and then the excess ink is recovered into the ink machine 11. The inner side of the frame 1 is rotatably equipped with an ink roller 123, and the ink roller 123 is located above the inner side of the ink fountain 121. The upper end of the workbench 12 is fixedly equipped with a servo motor 124, and the output end of the servo motor 124 is connected to the ink roller 123 by transmission. The bracket 122 is fixedly assembled on the upper end of the workbench 12, and the bracket 122 is fixedly equipped with a scraper 125, and the scraper 125 matches the side of the ink roller 123. The inner side of the frame 1 is rotatably equipped with a pressure roller 126, and the pressure roller 126 is located above the ink roller 123. like Figure 3-4 As shown, a pressure mechanism is installed between the front and rear sides of the upper end of the pressure roller 126 and the frame 1, and the pressure mechanism includes a mounting frame 15, and the mounting frame 15 is equipped with a connecting block 151. The pressure roller 126 is rotatably equipped with a top frame 152, and a telescopic rod 153 is fixedly installed between the top frame 152 and the connecting block 151, and a spring 154 is fixedly installed between the top frame 152 and the connecting block 151. The spring 154 is sleeved on the outside of the telescopic rod 153. The pressure roller 126 squeezes the printed packaging paper through the elasticity provided by the spring 154 to provide pressure for ink printing. A sliding rod 155 is fixedly installed on the upper end of the top frame 152, and the sliding rod 155 is slidably assembled with the connecting block 151 up and down; like Figure 6As shown, an adjustment component is installed between the connecting block 151 and the mounting frame 15, and the adjustment component includes an adjustment box 16 and a screw rod 161. The adjustment box 16 is fixedly installed on the mounting frame 15, and the screw rod 161 is fixedly installed on the upper end of the connecting block 151. The lower end of the adjusting box 16 is rotatably installed with a first bevel gear 162, and the side of the adjusting box 16 is rotatably installed with a second bevel gear 163. The first bevel gear 162 is meshed with the second bevel gear 163. A threaded hole is provided in the middle of the first bevel gear 162, and the screw rod 161 is threadedly rotatably connected with the first bevel gear 162 through the threaded hole. A rotating disk 164 is rotatably provided on the side of the adjusting box 16, and the rotating disk 164 is transmission-connected with the second bevel gear 163. Rotating the rotating disk 164 can move the screw rod 161 up and down, thereby adjusting the pressure between the pressure roller 126 and the ink roller 123, and can also lift the pressure roller 126 to facilitate the filling of the packaging paper to be printed. The first bevel gear 162 is fixedly equipped with a transmission gear 165, and a driving gear 166 is rotatably equipped on the side of the adjustment box 16. The driving gear 166 is fixedly connected to the turntable 164. A rotating shaft 167 is rotatably equipped between the two adjustment boxes 16. The two ends of the rotating shaft 167 are respectively fixedly connected to the two driving gears 166. Through the transmission of the rotating shaft 167, the driving gears 166 on both sides can be quickly adjusted to rotate during the process of the driving turntable 164, thereby adjusting the screw rods 161 on both sides and the lifting and lowering of the pressure roller 126; like Figure 5 , 9 As shown in 10, the drying mechanism includes two U-shaped covers 14, both of which are fixedly mounted on the inner side of the frame 1, and both of which are inverted, with one U-shaped cover 14 located on the inner side of the other U-shaped cover 14, and a plurality of guide rollers 141 are mounted between the two U-shaped covers 14, and the plurality of guide rollers 141 are rotatably mounted on the inner side of the frame 1, and the guide rollers 141 can guide the packaging paper, and a plurality of electric heating tubes 142 are fixedly mounted on the inner side of the outer U-shaped cover 14. As the hot air rises, the inverted U-shaped cover 14 can concentrate the heat and reduce the loss of energy, and the packaging paper to be printed can be fully dried when passing through the inverted drying parts of the two U-shaped covers 14, thereby improving the drying effect; The side of the frame 1 is equipped with an exhaust gas pretreatment mechanism, which includes an exhaust gas treatment box 17. The exhaust gas treatment box 17 is installed on the side of the frame 1. A collecting cover 171 is fixedly installed on the upper end of the outer U-shaped cover 14. A through hole communicating with the collecting cover 171 is opened on the upper end of the outer U-shaped cover 14. The collecting cover 171 is communicated with the exhaust gas treatment box 17. The exhaust gas treatment box 17 is filled with activated carbon. The activated carbon is used to perform initial pretreatment on the exhaust gas, thereby improving the efficiency of the early exhaust gas treatment, reducing the intensity of the subsequent exhaust gas treatment, reducing the amount of the subsequent catalyst treatment, reducing the treatment time of the microbial treatment method, reducing the exhaust gas treatment cost, and improving the exhaust gas treatment efficiency. The upper end of the exhaust gas treatment box 17 is fixedly equipped with a cooling box 172, and the cooling box 172 is filled with coolant. The cooling box 172 is fixedly equipped with a serpentine tube 173, one end of the serpentine tube 173 is connected to the collection cover 171, and the other end of the serpentine tube 173 is connected to the exhaust gas treatment box 17. The setting of the serpentine tube 173 increases the cooling path, which can enhance the cooling effect of the coolant on the gas inside. The cooling box 172 is fixedly equipped with a cooling box 174 on the side, and a semiconductor cooling plate is installed inside the cooling box 174. The cooling end of the semiconductor cooling plate faces the side of the cooling box 172, and the cooling box 174 is fixed on the side. A heat sink 175 is fixedly installed, and a number of evenly distributed heat sinks are fixedly installed inside the heat sink 175. A heat sink fan is installed inside the heat sink 175. The heat sink and the heat sink fan can enhance the heat dissipation effect of the heating end of the semiconductor refrigeration plate, thereby improving the cooling effect of the cooling end of the semiconductor refrigeration plate; wherein the movement speed of the exhaust gas molecules after cooling is slowed down, and it is easier to be captured by the activated carbon. Cooling the exhaust gas can also reduce the desorption of VOCs (volatile organic compounds) adsorbed by the activated carbon due to changes in temperature or air pressure, thereby reducing the risk of secondary pollution and enhancing the adsorption effect of the activated carbon; In the gravure printing process, multiple gravure printing devices are set up to ensure a continuous printing process. This gravure printing device can be prepared in multiple units to meet multiple printing needs and improve the printing efficiency of packaging paper; Wrapping paper printing process: When printing the wrapping paper, firstly, the front and rear side screws 161 and the pressure roller 126 are driven to rise by adjusting the turntable 164 to facilitate the loading of the wrapping paper. After the loading of the wrapping paper is completed, the turntable 164 is adjusted to drive the pressure roller 126 to descend, and the printing paper is squeezed by the pressure roller 126 and the ink roller 123. The pressure roller 126 may not be adjusted, and only the customer service spring 154 needs to elastically lift the top frame 152 to reduce the subsequent pressure adjustment steps, and then the motor of the external winding device is started and synchronously driven with the servo motor 124 of the device to continuously transport and print the wrapping paper. After being printed at the ink roller 123, the wrapping paper enters the inner side of the two U-shaped covers 14, and the wrapping paper printed with the ink pattern is dried by the electric heating tube 142. After the drying process, it is transported to the next gravure printing equipment through the conveying roller 13 for printing until the finished product is obtained.

[0018] A gravure printing process for gift wrapping paper comprises the following steps: S1: First, the base paper is placed in a gravure printing device and flexographically printed twice with bright red ink, wherein the flexographic mesh numbers are 150 mesh and 180 mesh respectively, and the machine speed is 35 meters per minute, so that the bottom red basic printing color is full, and then the drying temperature is controlled at 120° C. for drying to obtain a semi-finished product; S2: Place the semi-finished product into the gravure printing equipment and use a mixed ink of bright red ink, SJG309 rose red paste and matte oil to perform a 120-mesh gravure printing. The machine speed is 35 meters per minute. The drying temperature is controlled at 120°C for drying to complete the base color printing. The mixing ratio of bright red ink, SJG309 rose red paste and matte oil is 8:1:1.

[0019] S3: Use 180 mesh gravure printing equipment to perform gravure printing again with anti-scratch matte oil, the machine speed is 35 meters per minute, and the drying temperature is controlled at 120° C. for drying; S4: then the back of the printed paper is treated with water; S5: Use steel roller and wool roller to press the printed paper to obtain the finished product.

[0020] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or change the above embodiments without violating the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the technical field without departing from the spirit and technical ideas disclosed by the present invention should still be covered by the claims of the present invention.

Claims

1. A gift wrapping paper gravure printing device, comprising a frame and an ink machine, characterized in that: The ink machine is installed inside the frame, a workbench is fixedly installed on the lower side of the frame, a printing mechanism is installed on the upper end of the workbench, a plurality of conveying rollers are installed inside the frame, and a drying mechanism is installed inside the frame; The printing mechanism comprises an ink fountain and a bracket, wherein the ink fountain is mounted on the upper end of the workbench, the output end of the ink machine is connected to the lower side of the ink fountain, an ink roller is rotatably mounted on the inner side of the frame, and the ink roller is located above the inner side of the ink fountain, a servo motor is fixedly mounted on the upper end of the workbench, and the output end of the servo motor is transmission-connected to the ink roller, the bracket is fixedly mounted on the upper end of the workbench, a scraper is fixedly mounted on the bracket, and the scraper matches the side of the ink roller, a pressure roller is rotatably mounted on the inner side of the frame, and the pressure roller is located above the ink roller; The drying mechanism includes two U-shaped covers, both of which are fixedly mounted on the inner side of the frame, and both of which are inverted, with one of the U-shaped covers located on the inner side of the other U-shaped cover, and a number of guide rollers are mounted between the two U-shaped covers, and the guide rollers are rotatably mounted on the inner side of the frame, and a number of electric heating tubes are fixedly mounted on the inner side of the outer U-shaped cover.

2. A gift wrapping paper gravure printing device according to claim 1, characterized in that: An ink return fountain is fixedly arranged on the upper end of the workbench, the ink fountain is fixedly assembled on the inner side of the ink return fountain, and the ink machine input end is communicated with the bottom of the ink return fountain.

3. The gravure printing device for gift wrapping paper according to claim 1, characterized in that: A pressure mechanism is installed between the front and rear sides of the upper end of the pressure roller and the frame, and the pressure mechanism includes a mounting frame, the mounting frame is equipped with a connecting block, the pressure roller is rotatably equipped with a top frame, a telescopic rod is fixedly installed between the top frame and the connecting block, a spring is fixedly installed between the top frame and the connecting block, the spring is sleeved on the outside of the telescopic rod, a sliding rod is fixedly installed on the upper end of the top frame, and the sliding rod is slidably assembled with the connecting block up and down.

4. The gravure printing device for gift wrapping paper according to claim 3, characterized in that: An adjustment component is installed between the connecting block and the mounting frame, and the adjustment component includes an adjustment box and a screw rod. The adjustment box is fixedly installed on the mounting frame, and the screw rod is fixedly installed on the upper end of the connecting block. A first bevel gear is rotatably installed on the lower end of the adjusting box, and a second bevel gear is rotatably installed on the side of the adjusting box. The first bevel gear is meshed with the second bevel gear. A threaded hole is provided in the middle of the first bevel gear. The screw rod is threadedly rotatably connected to the first bevel gear through the threaded hole. A turntable is rotatably provided on the side of the adjusting box, and the turntable is drivingly connected to the second bevel gear.

5. The gravure printing device for gift wrapping paper according to claim 4, characterized in that: The first bevel gear is fixedly equipped with a transmission gear, the inner side of the adjustment box is rotatably equipped with a driving gear, the driving gear is fixedly connected to the turntable, and a rotating shaft is rotatably equipped between the two adjustment boxes, and both ends of the rotating shaft are respectively fixedly connected to the two driving gears.

6. The gift wrapping paper gravure printing device according to claim 1, characterized in that: The side of the frame is equipped with an exhaust gas pretreatment mechanism, which includes an exhaust gas treatment box. The exhaust gas treatment box is installed on the side of the frame. A collecting cover is fixedly installed on the upper end of the outer U-shaped cover. A through hole connected to the collecting cover is opened on the upper end of the outer U-shaped cover. The collecting cover is connected to the exhaust gas treatment box, and the exhaust gas treatment box is filled with activated carbon.

7. The gravure printing device for gift wrapping paper according to claim 6, characterized in that: A cooling box is fixedly mounted on the upper end of the exhaust gas treatment box, and coolant is filled inside the cooling box. A serpentine tube is fixedly mounted inside the cooling box, and one end of the serpentine tube is connected to the collecting hood, and the other end of the serpentine tube is connected to the exhaust gas treatment box. A cooling box is fixedly mounted on the side of the cooling box, and a semiconductor cooling plate is mounted inside the cooling box, and the cooling end of the semiconductor cooling plate faces one side of the cooling box. A heat dissipation box is fixedly mounted on the side of the cooling box, and a plurality of evenly distributed heat dissipation fins are fixedly mounted inside the heat dissipation box, and a heat dissipation fan is mounted inside the heat dissipation box.

8. A gravure printing process for gift wrapping paper, based on the gravure printing device for gift wrapping paper according to any one of claims 1 to 7, characterized in that: The following steps are involved: S1: First, the base paper is placed in a gravure printing device and flexographically printed twice with bright red ink, wherein the flexographic mesh numbers are 150 mesh and 180 mesh respectively, and the machine speed is 35 meters per minute, so that the bottom red basic printing color is full, and then the drying temperature is controlled at 120° C. for drying to obtain a semi-finished product; S2: Put the semi-finished product into the gravure printing equipment and use the mixed ink of bright red ink, SJG309 rose red paste and matte oil to perform a 120 mesh gravure printing, the machine speed is 35 meters per minute, and the drying temperature is controlled at 120°C for drying to complete the base color printing; the mixing ratio of bright red ink, SJG309 rose red paste and matte oil is 8:1:1; S3: Use 180 mesh gravure printing equipment to perform gravure printing again with anti-scratch matte oil, the machine speed is 35 meters per minute, and the drying temperature is controlled at 120° C. for drying; S4: then the back of the printed paper is treated with water; S5: Use steel roller and wool roller to press the printed paper to obtain the finished product.

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