Search

CN-121973562-A - Production process for large-width web ink-jet printing

CN121973562ACN 121973562 ACN121973562 ACN 121973562ACN-121973562-A

Abstract

The invention discloses printing equipment, which aims to provide a production process for large-width web inkjet printing, wherein the production process can automatically perform inkjet printing of facial tissues, can rapidly dry ink marks after printing, has a small overall occupied area and high processing efficiency, and is characterized in that the facial tissues are preheated and dried for multiple times in the inkjet printing process, so that the printing of patterns and the rapid and efficient drying of printing patterns are realized while the facial tissues are conveyed, the problem that a large amount of time and space are required for tiling the facial tissues for natural air drying or drying in the traditional drying method is solved, the inkjet printing of the facial tissues is realized by adjusting the inkjet range of a spray nozzle, and the adjustment of the printing width can be realized by correspondingly increasing or reducing the number of the spray nozzles when the facial tissues with different widths are printed.

Inventors

  • LIN QIJUN

Assignees

  • 森林包装集团股份有限公司

Dates

Publication Date
20260505
Application Date
20260403

Claims (6)

  1. 1. S11, carrying out induction integration on small-batch orders based on order patterns to be processed so as to enable colors of positions, where the ink needs to be ejected, of all the orders to be similar; S12, the control center loads the ink box of the spray head based on the colors in the order, so that the colors sprayed by the spray head are matched with the colors corresponding to the order, and the colors after the loading are recorded; s13, heating the tension roller of the paper conveying structure to enable the temperature of the surface of the tension roller to rise; s14, after the tensioning roller is heated, the facial tissue is tensioned through the tensioning roller, and meanwhile, the heated tensioning roller preheats the facial tissue; S15, based on an image needing to be subjected to ink jet on the surface of the facial tissue, the control center drives the heating element to heat the position needing to be subjected to ink jet on the facial tissue so that the temperature of the position needing to be subjected to ink jet on the facial tissue is higher than the temperature of other positions of the facial tissue; S16, the control center drives the spray head to be close to the facial tissue, and ink is sprayed on the surface of the facial tissue based on the image pattern and the image position, so that a corresponding image is formed on the surface of the facial tissue; S17, after the ink jet is finished, drying the ink marks by a heating component arranged on the other side of the ink jet device, and detecting the ink marks at the same time; S18, judging that the current facial tissue is dried and is finished if no ink mark remains on the facial tissue, jumping to S19 for shaping before winding, otherwise, increasing the temperature of the heating piece, and jumping to S19 for shaping before winding; s19, moving the dried facial tissues to a receiving rack, and secondarily heating and drying the facial tissues on the receiving rack by a secondary heating component of the receiving rack; and S110, after the drying is finished, rolling the printed facial tissue to finish the processing.
  2. 2. A control method for a large-width roll paper ink-jet printing apparatus according to claim 1, wherein in said step S17, the ink mark detection is provided in the middle of the heating member near the side of the take-up rack.
  3. 3. The control method for a large-width web inkjet printing apparatus according to claim 1, further comprising a print order switching method including the steps of S21 detecting a new order pattern to be rotated and comparing with an original batch order pattern; S22, after comparison is completed, traversing each nozzle in the device and detecting the nozzle, if the current nozzle is internally connected with the ink box and the sprayed color does not exist in the new order, assigning 0 to the current nozzle, if the current nozzle is internally connected with the ink box and the sprayed color exists in the new order, assigning 1 to the current nozzle, if the current nozzle is not internally connected with the ink box, not assigning and skipping the current nozzle, and after traversing each nozzle, jumping to S23 to carry out nozzle treatment; s23, the control center detects the spray heads, if the current spray head is assigned to be 0, the spray heads are cleaned, the color recorded in the control center is deleted, and otherwise, the next spray head is jumped to for detection; And S24, the control center detects the color of the new order, if the color which is not recorded by the control center exists in the new order, the spray heads are fed, the feeding spray heads are spray heads with the non-assigned value of 0 and the non-assigned value of 1, and otherwise, the spray heads do not need to be fed.
  4. 4. A control method for a large-width web inkjet printing apparatus according to claim 3 wherein the cleaning of the nozzles in step S23 includes the steps of S231 detecting the nozzles, if the current nozzle assignment is detected to be 0, driving the shutter to block the current nozzle and unload the ink cartridge, otherwise, jumping to the next nozzle to detect, repeating until all the nozzles are detected; s232, after the ink box is unloaded, injecting clear water into each spray head and the pipeline, and blocking the liquid by the baffle plate; s233, after the cleaning is finished, absorbing the residual moisture in the ink box, and drying the spray head and the ink box; s234, after the drying is finished, the assignment of the ink box to be cleaned is cleared.
  5. 5. The control method for the large-width web inkjet printing apparatus according to claim 1, further comprising a cutting method of winding up the web, comprising the steps of S31, putting the printed and wound up web into a cutting mechanism, and tensioning and transporting the web by the cutting mechanism; s32, detecting the input facial tissues by a cutting mechanism, cutting the current facial tissues if a preprinted cutting line is detected, otherwise, continuing to transport the facial tissues and detecting; and S33, stacking and storing the cut facial tissues to finish processing.
  6. 6. The inkjet printing device for the large-width roll paper is suitable for any one of claims 1-5 and is characterized by comprising a winding roller, facial tissue arranged in the winding roller, inkjet equipment arranged at the top of the winding roller and a paper conveying structure arranged between the inkjet equipment and the winding roller, wherein the inkjet equipment comprises a mounting frame, a plurality of spray heads arranged on the mounting frame, an inkjet channel arranged on the spray heads and an ink box arranged in the inkjet channel, the paper conveying structure comprises a tension roller, a material collecting frame and a transmission screw arranged between the tension roller and the material collecting frame, the position of the transmission screw is matched with that of the inkjet equipment, and heating assemblies are arranged on the tension roller, the material collecting roller and the transmission screw, and the spray heads are uniformly arranged along the length direction of the mounting frame.

Description

Production process for large-width web ink-jet printing Technical Field The present invention relates to a printing apparatus, and more particularly, to a production process for inkjet printing of large-width webs. Background In the using process of the corrugated paper box, for the purposes of attractive appearance and convenience in distinguishing directions, corresponding characters, symbols or images are usually required to be printed on the facial tissues of the corrugated paper box, so that the facial tissues of the corrugated paper box are required to be printed on the surface, but certain pressure is required to be applied to the corrugated paper box during printing, and therefore, certain loss is caused to the strength of the corrugated paper box; there is also a pasting printing method in the market, namely, firstly, corresponding characters, symbols or figures are printed on paper, and then, the corresponding characters, symbols or figures are pasted on the face paper of the corrugated paper box by using machinery or hands; The method has the advantages that the method has better printing quality and manufacturing quality, can improve the processing efficiency, is especially suitable for mass production, but generally needs more than ten paper boxes, and has the biggest defect of being unsuitable for the production of small-batch corrugated paper boxes due to high cost; At present, an inkjet printing method is disclosed in the market, a rolled facial tissue is printed, then the printed facial tissue is rolled, and then the rolled facial tissue is processed to form a corrugated board, but the process has a drying step of printed patterns between the printed facial tissue and the rolled facial tissue, the step needs to reserve a large-area position in equipment to pave the facial tissue, and the production area and the production time are greatly occupied, so that the production efficiency is reduced, the manufacturing cost is improved, the energy is wasted, meanwhile, the printed facial tissue needs additional space to be stacked, the occupied space is further increased, the planning of the space is additionally required when the small-batch production is carried out, and the overall processing effect is poor. Disclosure of Invention Aiming at the defects of the prior art, the invention aims to provide a production process for inkjet printing of large-width web, which can automatically perform inkjet printing of the web, can quickly dry ink marks after printing, has small overall occupied area and high processing efficiency. S11, carrying out induction integration on small-batch orders based on order patterns to be processed, so that colors of positions where ink is required to be ejected of all orders are similar; S12, the control center loads the ink box of the spray head based on the colors in the order, so that the colors sprayed by the spray head are matched with the colors corresponding to the order, and the colors after the loading are recorded; s13, heating the tension roller of the paper conveying structure to enable the temperature of the surface of the tension roller to rise; s14, after the tensioning roller is heated, the facial tissue is tensioned through the tensioning roller, and meanwhile, the heated tensioning roller preheats the facial tissue; S15, based on an image needing to be subjected to ink jet on the surface of the facial tissue, the control center drives the heating element to heat the position needing to be subjected to ink jet on the facial tissue so that the temperature of the position needing to be subjected to ink jet on the facial tissue is higher than the temperature of other positions of the facial tissue; S16, the control center drives the spray head to be close to the facial tissue, and ink is sprayed on the surface of the facial tissue based on the image pattern and the image position, so that a corresponding image is formed on the surface of the facial tissue; S17, after the ink jet is finished, drying the ink marks by a heating component arranged on the other side of the ink jet device, and detecting the ink marks at the same time; S18, judging that the current facial tissue is dried and is finished if no ink mark remains on the facial tissue, jumping to S19 for shaping before winding, otherwise, increasing the temperature of the heating piece, and jumping to S19 for shaping before winding; s19, moving the dried facial tissues to a receiving rack, and secondarily heating and drying the facial tissues on the receiving rack by a secondary heating component of the receiving rack; and S110, after the drying is finished, rolling the printed facial tissue to finish the processing. The invention is further arranged that in the step S17, the ink mark detection is arranged in the middle of the heating component close to one side of the material receiving frame. S21, detecting new order patterns needing to be rotated and comparing the new order patterns with the origin