12 results about "Screentone" patented technology

The present application discloses a method for spectral prediction and closed-loop feedback wide-width corrugated box extended gamut flexographic pre-printing, belonging to the field of packaging engineering and printing technology. The method comprises: establishing a dot gain mapping function based on the Yule-Nielsen correction model by testing the roughness, ink absorption and surface energy of the corrugated paper; printing a CMYKOGV seven-color characteristic color card to generate an adaptive ICC profile; using the CIEDE2000 color difference formula and constant hue angle mapping algorithm for gamut compression and color separation; selecting a low-hardness flat-top dot flexographic plate and configuring a anisotropic screen roller; introducing the Walker-Fetsko rheological ink transfer equation during printing, combining with real-time feedback of an online spectrophotometer to dynamically adjust the printing pressure and ink viscosity, and realizing closed-loop compensation. The present application realizes high-precision simulation of more than 90% of the PANTONE spot color library, completely gets rid of the dependence on spot colors, significantly improves the color stability and production efficiency of wide-width flexographic printing, and is suitable for extended gamut pre-printing production of high-quality corrugated boxes.

The application discloses a hot-pressing dot cluster arrangement processing technology for improving the efficiency of BLU picture improvement, S1: light guide plate design, CAD software is used to draw design drawings of the light guide plate, and G code programs are exported for use of numerical control machine tools; S2: material selection and pretreatment; S3: installation and calibration; S4: according to the design requirements of the light guide plate, appropriate hot-pressing molds are designed and selected, the hot-pressing molds are divided into several independent areas, each area has different heating elements and pressure adjusting devices; S5: segmented processing, the light guide plate is divided into multiple areas, each area corresponds to different dot arrangements, different processing parameters are set in the G code programs; S6: detection and analysis. The dot cluster arrangement of the light guide plate processed by the application greatly improves the gap between clusters, so that the dot density reaches 100%, and the gap between clusters is also guaranteed to be greater than 40% of the length of the cluster dot, and the requirement of the hot-pressing equipment for transfer printing can be met.

This utility model relates to the field of screen printing equipment technology, specifically to a prism sheet ink coating device, including a frame, a printing platform, and a screen. Two ink feeding boxes are symmetrically arranged on the top of the frame, and each ink feeding box is connected to an inclined conveying channel at its bottom. The printing platform is equipped with a lifting mechanism. A removable flat pressure plate is placed above the screen, the area of ​​which is equal to the effective working area of ​​the screen. A double-scraper mechanism is correspondingly arranged at the outlet end of the conveying channel. The ink formula is injected into the ink feeding box, and the ink flows through the conveying channel to the double-scraper mechanism. The flat pressure plate presses down vertically, causing the ink to be extruded through the gradient dots of the screen, thus pressing the ink onto the substrate and avoiding height differences. After using the flat pressure plate, it is removed. The double-scraper mechanism is then activated, and the screen is scraped twice by the double-scraper mechanism, eliminating the need for a return ink blade, thereby achieving an ink-free operation and preventing ink stagnation and solidification.

The present application relates to the technical fields of printing dot test, especially relates to a printing dot adhesion test method and device, and a printing dot adhesion test device, which comprises a bottom plate, the upper end of the bottom plate is provided with two groups of corresponding X-axis sliding tables, Y-axis sliding tables are installed between the driving blocks of the X-axis sliding tables, Z-axis sliding tables are installed on the driving blocks of the Y-axis sliding tables, horizontal rods are fixedly installed on the driving blocks of the Z-axis sliding tables, the axis of the horizontal rods is parallel to the axis of the X-axis sliding tables, vertical rods are fixedly installed at the ends of the horizontal rods, test component mounting parts for connecting with test components are arranged at the lower ends of the vertical rods, the printing dot adhesion test method and device can realize semi-automatic grid division and adhesive tape pulling operation, can reduce the test error of printing dot adhesion caused by human factors such as force size, force angle, force speed, force uniformity and action time, and can improve test accuracy and uniformity.

The application discloses a kind of super capacity invisible two-dimensional code technology based on true color multicolor halftone dot array.The technology takes two-dimensional code information capacity and its anti-fake application as target, based on printed true color CMYK corresponding quaternary encoding rule, through self-defined color coding technology, original information is modulated to generate multicolor halftone dot array two-dimensional code.The code takes single printing dot as encoding unit, collects its microscopic image to obtain the dot array distribution data of single dot, and decoding can be realized.Compared with prior art, the super capacity invisible two-dimensional code of the application has large encoding density, high identification reliability, and has the functional advantages of super capacity, invisible anti-fake, and has very high actual market value in e-commerce, printing and packaging, product traceability and other fields.

This invention provides a halftone processing method for inkjet printing based on cross-gradient halftone screens, comprising: S1, color space conversion; S2, dot basic unit design; S3, halftone screen generation and filling; S4, error diffusion processing; and S5, image compositing. The advantages of this method in terms of fundamental technology are: accurate color space conversion; stable error diffusion control; and a reliable channel processing mechanism. The advantages of this method in terms of innovation are: cross-line halftone dots provide better directionality; gradient transitions reduce graininess; and overlapping filling ensures smoothness.

This application relates to a breathable printed fabric and its production process. The production process includes color separation of the pattern to be printed and film preparation; fabrication of a screen and selection of a squeegee; preparation of a film screen; preparation of digital white plastisol; addition of the digital white plastisol to the film screen; and printing the digital white plastisol onto the fabric using a squeegee. During the color separation process, a corresponding grayscale value is selected based on the color distribution of the pattern to be printed to adjust the film. The grayscale value ranges from 20% to 80%. The grayscale value provides a basis for the depth of color in the pattern to be printed, using the solidity and blurriness of the halftone dots to represent the depth of color. Based on the pattern to be printed, a grayscale value corresponding to the color distribution of the pattern is selected within the 20%-80% grayscale range, allowing the film to present an effect that matches the pattern. Combined with digital white plastisol printing, the resulting fabric not only effectively displays the color distribution of the pattern but also achieves a breathable, non-film-forming effect.

This disclosure relates to the field of industrial automation technology, and provides a method and apparatus for calculating the screen printing path of a convex irregular bottle. The method includes: decomposing the convex contour point set of the bottle to be printed into several continuous straight line segments and / or curve segments according to a preset straightness tolerance parameter, generating a segment information set; for the curve segment, according to the target rotation angle, rotating the contour points in the current curve segment in the opposite direction of the origin by the target rotation angle, searching for the point with the largest ordinate value in the rotation point set as a tangent candidate point, performing secondary interpolation within the interval formed by the tangent candidate point and its adjacent points to obtain the brush point coordinates, and calculating the halftone dot coordinates according to the segment starting length of the current curve segment and the cumulative length of the brush point within the segment of the current curve segment; generating printing path data containing brush point trajectory and halftone dot trajectory, wherein the brush point trajectory is composed of brush point coordinates and the halftone dot trajectory is composed of halftone dot coordinates.

This invention discloses a method and storage medium for color compensation of laminated printed sheets. The method acquires the target color data and printing material combination of the document to be printed, inputs them into a pre-established color compensation model, and outputs the corresponding dot compensation value. Then, based on this compensation value, reverse dot compensation is performed on the document to be printed to generate the final printed document. The color compensation model is trained based on paired color data before and after lamination and corresponding material information, and can accurately characterize the color change patterns caused by the lamination process. This invention also includes a self-learning mechanism, which continuously optimizes the model parameters by detecting the color of the finished laminated sheet and comparing it with the target value. This solution achieves accurate and efficient pre-compensation for lamination color, effectively solving the problems of large color difference and low efficiency caused by traditional reliance on manual experience, and can be widely applied in printing proofing and production processes.

The present application relates to the technical fields of multilayer ceramic capacitor manufacturing, and specifically relates to a high-resolution pattern design method for MLCC manufacturing, which comprises the following steps: converting a pattern drawing into an image file format (S10); and loading the converted image file into a design program to design a plurality of dots constituting the pattern (S20). The feature of the present application is that in the step S20, the dots are independently designed in a plane unit and are arranged in space with adjacent dots to form a partition wall. The present application significantly improves the pattern resolution by optimizing the dot structure and layout, improves the printing flow flatness, effectively avoids defects such as bleeding and missing printing in the printing process, and improves the printing quality of the internal electrode of the MLCC and the product reliability.

This application discloses an invisible anti-counterfeiting method, electronic device, and storage medium based on printed dot structure. The method includes: acquiring a first image of an anti-counterfeiting label of a product to be verified; performing recognition processing on the first image to identify a first verification area and a second verification area of ​​the anti-counterfeiting label; obtaining a first grid structure of the first verification area and a second grid structure of the second verification area based on the first image; and determining the authenticity identification result of the product to be verified based on the first grid structure and the second grid structure. The printing steps of the anti-counterfeiting label are as follows: acquiring a preset standard image; determining a first printing area and a second printing area in the standard image based on a preset partitioning strategy; controlling a spot color printing module in an invisible anti-counterfeiting printing device to print based on the first printing area of ​​the standard image; and controlling a contrasting color printing module in the invisible anti-counterfeiting printing device to print based on the second printing area of ​​the standard image, thereby obtaining the anti-counterfeiting label.

1. The name of the design product: wisdom counter (ZT2508). 2. The use of the design product: for bank outlets to handle financial business. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view 1.