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1283 results about "Inkjet printing" patented technology

Inkjet printing is a type of computer printing that recreates a digital image by propelling droplets of ink onto paper, plastic, or other substrates.

Spray head driving method, system and equipment and storage medium

The invention relates to the technical field of ink-jet printing, and discloses a nozzle driving method, system and device and a storage medium, and the method comprises the steps: generating a digital waveform signal based on a printing demand, and converting the digital waveform signal into an analog voltage waveform through a digital-to-analog conversion module; performing waveform configuration on the analog voltage waveform through an analog switch matrix to generate a target analog waveform; controlling a high-voltage amplification circuit to boost and amplify the target analog waveform to output an initial driving level; driving a nozzle to jet ink droplets based on the initial driving level, and collecting ink droplet state parameters by using an ink droplet monitoring module; comparing the ink droplet state parameters with a preset target value to obtain a comparison result, and generating an adjustment parameter set according to the comparison result; optimizing the initial driving level generation process based on the adjustment parameter set to obtain an optimized driving level; according to the invention, through a closed-loop control process, the problem of poor driving signal adaptability caused by existing open-loop control is effectively solved.
Owner:JIHUA LAB

Decorative material with 3D texture structure and preparation method and application thereof

The invention relates to the technical field of decorative materials, in particular to a decorative material with a 3D texture structure and a preparation method and application of the decorative material. The method comprises the following steps: carrying out digital printing on a pretreated substrate to obtain a 2D pattern layer on the surface of the substrate; coating the surface of the 2D pattern layer with a photocuring coating, carrying out preliminary curing, and then carrying out ink-jet printing of a texture developing solution on the surface subjected to preliminary curing to carry out secondary curing, so as to obtain a cured coating; the cured coating comprises a hardened part and an unhardened part; and after an unhardened part in the cured coating is removed through polishing and wire drawing, a surface coating is coated, and the decorative material with the 3D texture structure is obtained. The textures with different widths and depths can be obtained in a manner of combining primary curing of the coating with ultraviolet absorption of the developing solution, and then a microcosmic coarse and visual smooth form is obtained through polishing and wire drawing treatment, so that the obtained 3D texture structure is closer to natural textures.
Owner:HUNAN BANFERT NEW MATERIALS TECH

Multi-station collaborative operation ink-jet printing intelligent production line and control method

The invention relates to the technical field of ink-jet printing, in particular to a multi-station collaborative operation ink-jet printing intelligent production line and a control method. According to the technical scheme, the system comprises a multi-station module, a cooperative transmission system, a sensing monitoring system and a central control unit, the multi-station module sequentially comprises a feeding station, a preprocessing station, a printing station, a curing station, a quality detection station and a discharging station, and the cooperative transmission system is composed of a two-way circulating conveying belt and a multi-degree-of-freedom mechanical arm; the sensing monitoring system is used for collecting workpiece, environment and injection state data and transmitting the data to the central control unit. The control method comprises the steps of data collection and environment monitoring, production task modeling, path optimization and task allocation, parallel scheduling and conflict avoidance, defect detection and local compensation, and dynamic feedback and parameter adaptive optimization. Through multi-station parallel operation, bidirectional flexible transmission, real-time defect detection and adaptive scheduling optimization, the efficiency, scheduling and finished product quality of the ink-jet printing production line are improved.
Owner:SHANGHAI CROSS VISION INTELLIGENT TECH CO LTD

Outer packing carton two-dimensional code jet printing quality online monitoring and error correction process

The invention belongs to the technical field of packaging jet printing, and discloses an external packaging carton two-dimensional code jet printing quality online monitoring and error correction process, which comprises the following steps: building a vision, laser, spectrum and pressure four-source sensing positioning system in a preprocessing stage, comprehensively collecting carton material and form related data, and forming a pre-calibration closed loop in cooperation with microsample jet printing verification; in the jet printing process, a high-speed imaging system of self-adaptive light supplement works synchronously, after an image is preprocessed through a combinatorial algorithm, various defects such as blooming and scratches are accurately recognized through a ResNet34-Transform-GAN fusion model, and then an LSTM neural network is used for predicting the development trend of the defects and conducting early warning; a three-level parameter configuration system of cloud decision, edge execution and twin simulation is utilized, an edge calculation unit uploads data such as materials, sizes and flatness collected in real time to the cloud, historical optimal parameters of the corresponding materials are called, and then dynamic adjustment is conducted in combination with the conveying speed.
Owner:HEFEI HUAGUAN PRINTING

Vibration reduction optimization control method, device and equipment for jet printing equipment and storage medium

The invention belongs to the technical field of vibration reduction control of jet printing equipment, and discloses a vibration reduction optimization control method, device and equipment for the jet printing equipment and a storage medium, and the method comprises the steps: obtaining the dynamic data of the OLED jet printing equipment, building a vibration dynamic model of the OLED jet printing equipment through a frequency domain identification method, and carrying out the vibration reduction optimization control of the OLED jet printing equipment based on the vibration dynamic model. A state space model is constructed, and a designed system excitation signal is respectively input into a discretization equation corresponding to the state space model and a disturbance calculation model corresponding to the state space model so as to calculate the predicted acceleration and the feed-forward compensation amount of the OLED jet printing equipment after active vibration reduction in combination with dynamic data. Establishing a model prediction algorithm cost function and a state parameter constraint condition corresponding to the predicted acceleration to perform vibration reduction optimization control on the OLED jet printing equipment in combination with the feed-forward compensation amount; by means of the method, damping optimization control over the OLED jet printing equipment can be achieved.
Owner:JIHUA LAB

Ink droplet image simulation generation method, device and equipment for OLED ink-jet printing and storage medium

The invention relates to the technical field of image generation, in particular to an ink droplet image simulation generation method and device for OLED ink-jet printing, equipment and a storage medium. According to the method, image simulation is taken as a core target, a framework is generated by setting a submerged space condition diffusion, condition generation is carried out in a submerged space constructed by a pre-training auto-encoder, and direct and controllable mapping from parameters to key frame drop images is realized by taking ink jet waveform parameters as constraints; through a unified parameter coding and condition injection mechanism, waveform parameters are subjected to standardization and embedded representation, and conditions are continuously applied to each layer of the generation backbone by adopting characteristic linear modulation, so that the stability and the fine granularity controllability of the generation process are ensured; the key frame image with high consistency with the high-speed ink droplet imaging appearance and geometry can be quickly output, so that a large number of early physical tests are converted into image-level substitution, and the period for determining the available parameter range and the communication cost are remarkably shortened.
Owner:JIHUA LAB

Stepping error compensation method and device for ink-jet printing and ink-jet printer

The invention belongs to the technical field of ink-jet printing, and relates to a stepping error compensation method and device for ink-jet printing and an ink-jet printer. Before printing, obtaining a target reference distance based on a camera and a preset calibration strategy; in the printing process, stepping error compensation is executed according to the distance between the camera and the target reference, including obtaining the overlapping length and the stepping distance of adjacent jet printing strips, calculating the target reference position of a target, obtaining a stepping error value, and executing hole moving or remedying operation according to the error value. According to the method, the stepping deviation of multi-PASS printing can be corrected in real time, the splicing error and the PASS channel phenomenon are reduced, the strip alignment precision and the image consistency are improved, meanwhile, the production efficiency is considered, the dependence on mechanical precision and manual intervention is reduced, and therefore the overall printing quality and stability of corrugated paper digital jet printing are improved.
Owner:DONGGUAN CNTOP PRINTING EQUIP CO

Pixel slot substrate automatic correction method and device, electronic equipment and storage medium

The invention provides an automatic correction method and device for a pixel slot substrate, electronic equipment and a storage medium, and relates to the technical field of OLED ink-jet printing. The method comprises the steps that a camera is controlled to scan a substrate, all effective targets on the substrate are recognized, preliminary pixel coordinates are obtained, estimated coordinates of the preliminary pixel coordinates are obtained, and the view field center of the camera is aligned to the estimated coordinates; controlling a camera to obtain an image of an effective target, and obtaining a sub-pixel center coordinate and a corresponding fitting quality score through a pixel fitting model; according to the sub-pixel center coordinates, the attitude deviation of the micro-motion platform is obtained, and the attitude of the micro-motion platform is corrected. The method aims at solving the technical problems that in an existing OLED ink-jet printing platform, the substrate posture correction precision is insufficient, the target recognition stability is poor, and the correction efficiency is low, the substrate posture correction precision, efficiency and stability are remarkably improved, and a powerful guarantee is provided for the production efficiency and the product quality of OLED ink-jet printing.
Owner:JIHUA LAB

Digital twinning virtual debugging method for jet printing manufacturing control optimization

The invention relates to a digital twin virtual debugging method for jet printing manufacturing control optimization, and belongs to the technical field related to intelligent manufacturing and industrial control. Comprising the following steps: configuring a control logic program for each equipment sub-module in a jet printing manufacturing equipment twin model through an equipment master controller, and writing the control logic program into a corresponding virtual controller; establishing communication connection between each virtual controller and the twin model, verifying a control logic program in the virtual controller, and verifying and optimizing the control logic program through general control; and inputting each optimized control logic program into the entity controller of the corresponding equipment sub-module, sending a control instruction to the entity controller corresponding to the equipment sub-module of which the current motion is to be verified through general control, driving the equipment sub-module to execute an action, optimizing the control logic program in the current entity controller through the general control, and verifying the current motion of the equipment sub-module. And through multi-round program optimization, a control program of the jet printing manufacturing equipment is obtained. The debugging time and cost of the ink-jet printing equipment can be reduced.
Owner:HUAZHONG UNIV OF SCI & TECH +1

Ink-jet printing device and printing method

The ink-jet printing device comprises a printing trolley, a supporting cross beam, a supporting clamp of a rotating mechanism, an automatic angle adjusting device of the rotating mechanism and a control system, in the printing process, a spray head is located above a to-be-printed area, and when the to-be-printed object rotates by one circle, the spray head is located above the to-be-printed area; the nozzle steps by a fixed distance along the bus direction of the to-be-printed object, the fixed distance is N times of the distance between two pixel points in the resolution of the to-be-printed image, N is a positive integer, the nozzle continuously jets ink droplets to form an image-text in the stepping process, and the to-be-printed object rotates at a constant speed around the rotation center axis of the to-be-printed object while ink is jetted. According to the dynamic micro-deviation printing mode, the printing efficiency is improved while the inkjet effect is guaranteed, and the dynamic micro-deviation printing mode can be used for printing various curved-surface objects.
Owner:BEIJING MEIKEYI

Ink-jet printing dry film defect detection system

The invention discloses an ink-jet printing dry film defect detection system, and belongs to the technical field of OLED pixel groove dry film defect detection, the ink-jet printing dry film defect detection system comprises a shaping part, and a linear polarizer and a shaping lens are arranged in the shaping part; the shaping lens comprises a first lens and a second lens. The side face, facing the linear polarizer, of the first lens is flat and is vertically incident by the vertically polarized light. The side surface of the first lens back to the linear polaroid is concave in center and flat in periphery; the second lens protrudes outwards towards the center of the side face of the first lens and is flat in periphery. The side of the second lens back to the first lens is flat. The invention aims to solve the problems of the existing ink-jet printing OLED panel dry film defect detection method, the detection efficiency and the detection quality can be effectively improved, the cost is reduced, the introduction of new defects or the damage to a substrate is avoided, and the requirements of large-scale industrial production are met.
Owner:JIHUA LAB

Luxury stone ceramic and method for manufacturing the same

ActiveCN120864908BGlazeGreen body
The present application relates to a kind of luxury stone ceramics and its preparation method, belong to ceramic production manufacturing technical field.The preparation method of the luxury stone ceramics includes: glaze is applied on the surface of green body;After glaze is applied on the surface of green body, matt color glaze is applied;After matt color glaze is applied on the surface of green body, inkjet printing is printed on the surface of green body;After inkjet printing is printed on the surface of green body, whitening glaze is applied;After whitening glaze is applied on the surface of green body, color inkjet printing is printed;After color inkjet printing is printed on the surface of green body, number code protection glaze is applied;After number code protection glaze is applied on the surface of green body, it is fired and polished, and the luxury stone ceramics is obtained.The present application can highly restore the luxury stone color and detail of various different textures, and production process stability is good.
Owner:MONALISA GRP CO LTD

Multi-nozzle scheduling method, system and equipment and storage medium

ActiveCN121340784APrintingData packData set
The invention relates to the technical field of ink-jet printing, and discloses a multi-nozzle scheduling method, system and device and a storage medium, and the method comprises the steps: collecting an initial state data set; generating configuration parameters and printing parameters based on the initial state data and a preset printing task requirement; activating an integrated channel based on the configuration parameters; analyzing the printing parameters to obtain an instruction data packet and a spray hole data packet, and distributing the instruction data packet and the spray hole data packet to each integrated channel; performing compression coding processing on the instruction data packet or the spray hole data packet to form a driving data packet; the nozzle driving board is controlled to convert the driving data packet into a driving voltage waveform matched with the nozzle, and the driving voltage waveform is transmitted to the nozzle to complete the jet printing action; according to the invention, by constructing an OLED ink jet equipment transmission link and utilizing integrated channel directional distribution processing, multi-nozzle efficient scheduling is realized, and the requirements of large-size OLED printing equipment on stable scheduling and efficient jet printing of a large number of nozzles are met.
Owner:JIHUA LAB

Ink-jet printing head integrated structure based on microfluidics

The invention relates to an ink-jet printing head integrated structure based on microfluidics, and belongs to the technical field of microfluidics. The device comprises an ink supply device, a micro-fluidic chip and an ink-jet printing head, the micro-fluidic chip is internally provided with a group of micro-channels and an active control element, the active control element controls the size, the shape and the speed of liquid drops in the micro-channels, the ink supply end of the ink supply device is connected with the inlet end of the micro-channels of the micro-fluidic chip, and the ink-jet printing head is connected with the micro-channels of the micro-fluidic chip. A micro-channel outlet end of the micro-fluidic chip is connected with an ink-jet printing head, the ink-jet printing head is internally provided with nozzles which are correspondingly communicated with the micro-channel outlet end in a one-to-one mode, and a movable substrate is arranged in the ink-jet direction of the nozzles. The micro-fluidic chip and the ink-jet printing head are integrally arranged, liquid drops are accurately regulated and controlled through the micro-fluidic chip, accurate sorting and conveying of the liquid drops are achieved, controllable printing of the liquid drops is achieved through the ink-jet printing head, and the printing quality and efficiency are improved.
Owner:EAST CHINA INST OF OPTOELECTRONICS INTEGRATEDDEVICE

Inkjet printing apparatus, printing method thereof, and image processing apparatus

PendingUS20260113411A1Visual representation by matrix printersPrintingColor imageImaging processing
An inkjet printing apparatus comprises: a first printing unit that prints a specific color image by applying a specific color ink having a specific color on a printing medium; a second printing unit that prints a color image by applying a color ink onto the specific color image printed on the printing medium; and a control unit that controls an application amount of the specific color ink by the first printing unit. The control unit determines an application amount per unit area of the specific color ink in accordance with a viewing condition in a case where an observer views a printing medium on which the color image is printed.
Owner:CANON KK

Curved surface circuit jet printing droplet spreading prediction method based on GA-BP neural network

The invention provides a curved surface circuit jet printing droplet spreading prediction method for optimizing a BP neural network (GA-BP) based on a genetic algorithm, and belongs to the technical field of inkjet printing process parameter optimization and curved surface electronic manufacturing. A high-precision prediction model is constructed for solving the problem that spreading behaviors of micro-droplets on a cylindrical surface substrate are complex due to coupling influences of material physical properties, substrate characteristics and process parameters. The dynamic viscosity, the surface tension, the density, the surface wettability, the curvature radius, the impact speed and the temperature serve as input, the circumferential and axial maximum spreading diameters serve as output, and training data are obtained through high-speed camera shooting or CFD simulation; globally optimizing the initial weight and threshold of the BP network by adopting a genetic algorithm, and simulating binary crossover and Gaussian mutation strategies by taking the reciprocal of a verification set MSE as a fitness function and combining roulette selection; finally, the GA-BP model obtained through training meets the conditions that R2 is larger than or equal to 0.92 and RMSE is smaller than or equal to 0.05, and real-time prediction of the spreading behavior under the new process condition can be achieved. The method effectively overcomes the problems that an empirical formula is poor in applicability and low in numerical simulation efficiency, and traditional BP is prone to sinking and local minimum and the like, and has high precision, strong generalization and engineering practicability.
Owner:GUILIN UNIV OF ELECTRONIC TECH

Method and device for determining ink-jet printing parameters of three-dimensional object surface and computer equipment

The invention relates to an ink-jet printing parameter determination method and device for the surface of a three-dimensional object and computer equipment. The method comprises the following steps: performing fusion processing on three-dimensional scanning data, surface state data and pattern design data of an ink-jet printing task to obtain workpiece basic data and target appearance field data; according to the workpiece basic data and the target appearance field data, internal reference path collaborative modeling is carried out on printing parameters of the ink-jet printing task, and a curved surface process operator is obtained; according to the curved surface process operator, microphysical simulation analysis is carried out on the jetting physical process of the ink droplets, and a microfilming response field is obtained; and according to the curved surface process operator and the micronizable film-forming response field, performing micronizable optical mapping inversion analysis on the appearance response of the ink-jet printing task to obtain a printing parameter instruction set. By adopting the method, the batch consistency and the yield can be effectively improved to meet the production requirements.
Owner:SHENZHEN SHENLONGJIE TECH CO LTD

Printing method, device and equipment for outputting ink quantity of any times and storage medium

PendingCN121764415Asynchronized mobilitySynchronization requirementsOther printing apparatusDigital output to print unitsInformation controlProcess engineering
The invention discloses a printing method, device and equipment for any-fold ink quantity output and a storage medium, and relates to the technical field of ink-jet printing. The method comprises the steps that the reciprocating scanning frequency, initial stepping information and ink amount adjusting information of a to-be-printed task are obtained; actual printing stepping information is obtained according to the reciprocating scanning times and the ink amount adjusting information; processing the to-be-printed data corresponding to each type of to-be-adjusted ink according to the reciprocating scanning times and the ink amount adjustment multiple to obtain actual printing data; and controlling a printing nozzle and a printing medium to move relative to each other according to the actual printing stepping information, and performing ink jetting in the moving process according to the actual printing data. The technical problem that an existing printing method cannot conveniently and accurately output the doubled ink amount with any multiple can be solved.
Owner:SHENZHEN HOSONSOFT CO LTD

Nozzle calibration image acquisition method and device, equipment and storage medium

The invention discloses a nozzle calibration image acquisition method and device, equipment and a storage medium, and relates to the technical field of ink-jet printing. The method comprises the following steps: determining an initial nozzle calibration image required for nozzle calibration; determining an ink dot pattern corresponding to the initial nozzle calibration image, wherein the ink dot pattern comprises any one of a large dot, a middle dot, a small dot and a mixed dot; and obtaining a to-be-printed nozzle calibration image according to the initial nozzle calibration image and the ink dot pattern. According to the method, the initial nozzle calibration image and the corresponding ink dot type are combined to obtain the to-be-printed nozzle calibration image, then nozzle calibration is performed, it can be ensured that the calibration image obtained through printing can accurately reflect the printing state of the nozzle, and therefore printing deviation can be rapidly recognized and corrected, and the calibration process is more efficient and accurate.
Owner:SHENZHEN HOSONSOFT CO LTD

Powder-bonded forming apparatus and method for complex geological models

The application discloses a powder bonding forming device and method for a complex geological model, which comprises a 3D printing control system, a material conveying tank, a powder falling and paving assembly, a forming box, an inkjet printing assembly, a rack, a forming box moving assembly, a longitudinal beam module and a powder cleaning assembly; the material conveying tank is fixed above the powder falling and paving assembly; the powder falling and paving assembly and the inkjet printing assembly are respectively fixed on longitudinal beam sliding rails of the longitudinal beam module through sliding blocks, and the two are separately moved without interfering with each other during printing and forming; the forming box is located directly below a rectangular space surrounded by the longitudinal beam module, and a forming platform is located in the forming box; the forming box moving assembly is arranged at the bottom of the forming box, and the forming box can be moved along a tow chain to realize moving in for printing and moving out for powder cleaning. The powder paving and bonding functions of the equipment are realized through different modules, the printing efficiency is improved, in addition, the forming platform is lifted from the side, the overall height of the equipment is greatly reduced, and stable vertical movement of the equipment is ensured.
Owner:HEBEI UNIV OF TECH

Pole piece dressing ink-jet printing device and printing method

The invention discloses a pole piece dressing ink-jet printing device and method, the ink-jet printing device comprises a base, a platform assembly, a visual assembly, a printing assembly, a curing assembly and a control assembly, the platform assembly is fixedly installed on the base, and the visual assembly, the printing assembly and the curing assembly are slidably installed on the base; the visual component shoots the pole piece placed on the platform component and generates a picture; the printing assembly prints a dressing on the surface of the pole piece; the curing assembly is used for curing the dressing printed on the pole piece through an ultraviolet lamp; and the control assembly obtains the pictures shot by the visual assembly and the printing times, and controls the printing assembly to print the dressing on the surface of the pole piece. According to the ink-jet printing device, non-contact coating is adopted, plate making is not needed, patterns can be flexibly edited through software, the edge effect can be remarkably reduced, and the ink-jet printing device has the advantages of being high in material utilization rate, high in coating precision, high in thickness consistency and the like and meets the technological requirements of high-precision batteries.
Owner:湖南三迪数字涂装系统有限公司

Inkjet printing method

The present invention provides an inkjet printing method for forming a printed image on a printing medium, the printed image including a rich image forming section and a light image forming section, the printing duty ratio of an ink containing a colorant being greater than the printing duty ratio of the ink containing the colorant being greater than the printing duty ratio of the ink containing the colorant being greater than the printing duty ratio of the light image forming section. The inkjet printing method includes: a step 1 of applying a pretreatment liquid to an outer edge portion of a portion where a dense image forming portion is formed to obtain a printing medium having a pretreatment liquid applying portion; and a step 2 of applying an ink containing a colorant to a region on the surface of the printing medium obtained in the step 1, said region becoming a dense image forming section, said surface having the pretreatment liquid applying section.
Owner:KAO CORP

Printing method, device and equipment based on printing file splicing, and storage medium

The application provides a printing method, device and equipment based on printing file splicing and a storage medium, relates to the field of inkjet printing technology, and solves the problem of low production efficiency caused by the need for multiple reset operations of a printing device when multiple printing files exist in the prior art. The method comprises the following steps: obtaining substrate information; obtaining a plurality of to-be-printed images, processing the to-be-printed images according to the substrate information, and generating a plurality of first printing files; splicing the first to-be-printed files to generate a second printing file; and controlling a nozzle to perform inkjet printing on a substrate according to the second printing file. The first printing files are spliced to generate the second printing file, the number of printing files is reduced, the reset operation of the printing device is reduced, and the production efficiency is improved.
Owner:SHENZHEN HOSONSOFT CO LTD

Medicine packaging box packing conveying and positioning device

This utility model relates to the field of pharmaceutical manufacturing technology, and in particular to a packaging, conveying, and positioning device for pharmaceutical boxes. It includes a first conveyor belt and a second conveyor belt arranged sequentially. A packaging machine is installed at the junction of the first and second conveyor belts. An inkjet printer is installed next to the first conveyor belt. A box-turning mechanism is installed on the end of the second conveyor belt away from the first conveyor belt. A sensor mechanism for measuring the conveying speed of the second conveyor belt is installed on the other end of the second conveyor belt away from the first conveyor belt. The sensor mechanism includes an encoder for electrical connection to a control system that controls the inkjet printer. A roller is mounted on the encoder for rolling friction contact with the surface of the second conveyor belt. The conveying speed of the second conveyor belt is measured by the encoder and roller, and the result is fed back to the control system to control the inkjet printer's inkjet timing, thereby ensuring the consistency of the inkjet printing position for each box.
Owner:BEIJING TONGRENTANG TECH DEV (TANGSHAN) CO LTD

Method and Device for Determining the State of the Filter Unit of an Ink Supply System

A device is described for determining the state of a filter unit of an ink supply system of a print bar of an inkjet printing device. The filter unit at a supply line to the print bar is arranged in series with a supply valve. The device is configured to determine an opening degree of the supply valve that thereby occurs while ink is conveyed with a defined target volumetric flow through the supply line. Furthermore, the device is configured to determine state information with respect to the state of the filter unit on the basis of the determined opening degree of the supply valve.
Owner:CANON PRODN PRINTING HLDG BV

A test printing method before jet printing processing and an inkjet printing system

The application relates to a test printing method before jet printing processing and an inkjet printing system. The test printing method comprises the following steps: dividing all nozzles of a nozzle module into multiple groups; making each group of nozzles print according to a test pattern, the test pattern comprising a test area and a code area, and multiple nozzles in the same group printing along a test straight line in the Y direction in the test area; multiple nozzles of each group of nozzles printing identification codes in the code area respectively; acquiring deviation amounts of droplets sprayed by each nozzle in the test area in the X direction and the Y direction; judging whether the ratio of the number of normal nozzles to the number of all nozzles is greater than or equal to a preset qualified ratio; if the ratio of the number of normal nozzles to the number of all nozzles is greater than or equal to the qualified ratio, shielding all abnormal nozzles except the normal nozzles, and completing the test printing. The application is convenient for determining the landing point deviation of the droplets sprayed by the nozzles, and abnormal nozzles can be quickly found out by using the identification codes.
Owner:WUHAN NATIONAL INNOVATION TECHNOLOGY OPTOELECTRONICS EQUIPMENT CO LTD

Plush fabric invisible anti-counterfeiting method based on optically variable material

The invention provides a plush fabric invisible anti-counterfeiting method based on an optically variable material, and belongs to the technical field of textile anti-counterfeiting. The method comprises the following steps: providing a plush fabric with a final style; preparing anti-counterfeiting slurry containing photochromic microcapsules, a low-temperature crosslinking adhesive, a flatting agent and deionized water; applying the slurry to the base cloth of the fabric or the root of fluff through screen printing or digital ink-jet printing; and carrying out low-temperature fixation at 80-120 DEG C. The obtained fabric has the same appearance and handfeel under natural light, an anti-counterfeiting pattern is shown under ultraviolet light or sunlight irradiation, and the pattern disappears after a light source is removed. According to the method, complete invisibility of anti-counterfeiting is achieved, the soft hand feeling of the plush fabric is not damaged, the anti-counterfeiting threshold is high, and the method is suitable for the fields of high-end plush toys, home textiles and the like.
Owner:BEIJING POP MART CULTURAL & CREATIVE CO LTD

Moisturizing structure and moisturizing method of continuous ink-jet printer

The invention relates to a moisturizing structure and a moisturizing method of a continuous ink-jet printer. The moisturizing structure and the moisturizing method solve the problem that the moisturizing mode of an existing ink-jet printer cannot meet the long-term moisturizing requirement of the continuous ink-jet printer. The device comprises an ink supply liquid storage barrel, a spray head and an ink outlet liquid storage barrel which are connected in sequence, in the flowing direction of the moisturizing liquid, the ink supply and storage barrel is connected with an ink inlet of the spray head through an ink inlet controller, an ink outlet of the spray head is connected with an ink outlet and storage barrel through an ink outlet controller, and the ink outlet and storage barrel is connected with the ink supply and storage barrel through a first circulation controller; the spray head is provided with a spray hole for ink-jet printing, and a liquid receiving disc is arranged below the spray hole. According to the method, ink of the continuous ink-jet printer is replaced with the moisturizing liquid, intermittent small-scale ink dripping of the spray head is controlled through the arrangement of moisturizing circulation, long-term effective moisturizing is conducted on the ink flow channel of the continuous ink-jet printer, ink residue curing and blocking of the flow channel and a spray hole are avoided, and the method is low in cost, good in moisturizing effect and easy to operate.
Owner:SHANGHAI REALFAST DIGITAL TECH CO LTD

A Simulation Design and Optimization Method and System for Nylon Fabric Inkjet Printing Based on Finite Element Analysis

PendingCN122366060AMicroscopic imageYarn
This invention relates to the field of fabric printing simulation optimization technology, specifically a method and system for nylon fabric printing simulation design optimization based on finite element analysis. The method includes: acquiring microscopic images and physical property parameters of the nylon fabric; constructing a three-dimensional microscopic finite element model reflecting the yarn interweaving structure; selecting a printing area on the model surface and defining ink droplet ejection and ink fluid property parameters; using these parameters as initial conditions, employing a fluid-structure coupling algorithm to simulate the dynamic process of ink droplet impact, wetting, and penetration, acquiring three-dimensional ink distribution data and fabric stress-strain response data; extracting printing quality characteristic indicators, comparing stress-strain data with fabric deformation thresholds, and evaluating the impact of printing on fabric structural integrity; and generating an optimization and adjustment scheme for printing process parameters based on the evaluation results. This method improves simulation accuracy, achieves simultaneous evaluation of printing quality and fabric structural integrity, and optimizes printing process design.
Owner:SHAOXING QIANYONG TEXTILE CO LTD

A method of oligonucleotide inkjet printing

The application provides a method for inkjet printing of oligonucleotides, and belongs to the technical field of in-situ synthesis of oligonucleotides.The method comprises the following steps: modifying the surface of a solid carrier with a chemically active functional group; depositing oligonucleotide synthesis reagents onto the surface of the modified solid carrier by inkjet to perform in-situ synthesis; and the solvent in the oligonucleotide synthesis reagents comprises one or two of glutaronitrile, acetonitrile and propylene carbonate.The application uses a new type of difficult-to-vaporize solvent, greatly reduces the volatilization of reagents during inkjet synthesis and the generation of organic vapors during synthesis, and thus maintains a high in-situ synthesis reaction efficiency of oligonucleotides.
Owner:BEIJING MINGYI INTELLIGENT MFG TECH CO LTD