89 results about "Spot color" patented technology

The invention provides an intelligent image processing method and device for UV curing 3D ink-jet printing and a storage medium, and the method comprises the steps: carrying out the contour feature extraction of a slice image, and intelligently recognizing a supporting region based on the interlayer contour change and geometric features; printing data corresponding to the color ink layer, the white ink layer, the gloss oil layer, the shaping layer and the supporting layer are generated according to the contour features, the shrinkage judgment result and the overhanging area recognition result, the printing data serve as spot color channels and are combined with CMYK channels of the color ink layer, halftone processing is carried out on the data of the channels, and the color ink layer is obtained. And finally, generating and outputting a TIF format image file comprising at least eight channels, wherein the TIF format image file is used for driving the UV curing 3D ink-jet printer, the equipment and the storage medium storage and is used for realizing the intelligent image processing method during execution. According to the method, the printing precision and the material utilization rate are improved, and the problems of support generation, color management and quality control in multi-material 3D printing are effectively solved.

A method for improving the utilization rate of spray holes by obliquely arranging a spray head comprises the steps that the spray head is rotated by a certain angle to be obliquely installed on a printing trolley, a parting line is arranged on the spray head, the length direction of the parting line is consistent with the advancing direction of the printing trolley, and spray holes in all constant-color spray holes in a small coverage area on one side of the parting line are closed; the spray holes in the spot color spray holes in the small coverage area on the other side of the parting line are closed; according to the method, after the spray head is obliquely arranged, a dividing line located in the middle can divide two kinds of spray holes in an unequal division mode, a color printing area and a spot color printing area which are different in size are formed on the inner side and the outer side of the spray head in a staggered mode, and after the color printing area and the spot color printing area which are slightly closed at opposite angles are formed, the color printing area and the spot color printing area are formed. A large color printing area and a large spot color printing area are formed on the inner side and the outer side of the spray head, the utilization rate of spray holes in the spray head can be effectively increased, and the printing efficiency is improved.

The invention relates to the technical field of package printing, in particular to an offset printing lithographic plate high-saturation package color reduction printing method, device and equipment and a medium, and the method comprises the following steps: obtaining a standard Lab color value of a large-area intermediate color in a target image based on an international standardized color management system; separating an intermediate color in a target image to a user-defined spot color layer according to the standard Lab color value, and determining an overprinting proportional relation between basic CMY three colors and the intermediate color according to the user-defined spot color layer; screening optimization processing is carried out on an area corresponding to the overprinting proportional relation so as to reduce interference of basic CMY three colors on an intermediate color; and generating a standardized printing file containing the spot color layer and the basic CMY color, and finishing printing through an offset printing process. The offset printing method has the effect of solving the problems of insufficient color saturation and poor color stability in existing offset printing package printing.

The invention relates to the technical field of spot color matching, in particular to a color matching method based on natural pigment water-based spot color ink, which comprises the following steps: preparing natural pigment water-based primary color ink according to a predetermined concentration gradient, printing to obtain a gradient printed product, collecting optical data of the gradient printed product and a target sample, and constructing a primary color database; converting the spectral reflectance in the primary color database into an absorption-scattering ratio, fitting the absorption-scattering ratio, establishing a linear relation coefficient between the concentration gradient and the optical characteristics of the natural pigment primary color ink, and calculating the absorption-scattering ratio of the mixed primary color ink; solving an initial ink formula by taking the root-mean-square error of the spectral reflectivity and the CIE1931 chromatic aberration or the CIE1976 chromatic aberration as target minimum values; and comparing the spectral difference and chromatic aberration of the initial printing sample and the target printing sample, and optimizing the formula to obtain a corrected formula. Compared with a traditional ink color matching method, an accurate spot color formula can be output for color matching of the natural pigment water-based spot color ink, and therefore the application range of the natural pigment water-based ink is widened.

Methods for aggregating resources enhance the management of printing resources within a printing system. A shared attribute related to printing operations is used for aggregating a set of papers within a paper catalog used for printing operations at a printing device. Changes to a feature or a printing resource for one or more papers within the aggregated set of papers is managed using the integrated resources. Printing resources include the paper catalog, calibrations, and spot color adjustments. Integrated resource management also occurs across peer calibration groups to update resources.

Methods for aggregating resources enhance the management of printing resources within a printing system. A shared attribute related to printing operations is used for aggregating a set of papers within a paper catalog used for printing operations at a printing device. Changes to a feature or a printing resource for one or more papers within the aggregated set of papers is managed using the integrated resources. Printing resources include the paper catalog, calibrations, and spot color adjustments. Integrated resource management also occurs across peer calibration groups to update resources.

The invention relates to the technical field of novel ink, and provides a spot color separation method and system for ink recovery. The method comprises the following steps: acquiring an RGB image of a printing recovery product; pixel segmentation is carried out on the image, and color and coordinate data of pixels are marked; performing region clustering according to the color data to obtain a plurality of recovery regions; identifying coordinates of the recovery area, and controlling the recovery device to dissolve and separate the ink in the target area to obtain mixed ink; and constructing a spot color adjustment module, and blending the mixed ink with the ground color ink to obtain the spot color ink. The technical problems that in a traditional ink recycling technology, due to the fact that different color areas cannot be accurately separated, the recycled novel ink is low in purity and cannot be directly recycled are solved, high-precision color area segmentation is achieved through multi-stage clustering, local dissolution and a special hue and process are combined, and the efficiency is improved. And the purity of the recovered novel ink and the direct reuse rate of the novel ink are improved.

Methods for aggregating resources enhance the export or import of printing resources within a printing system. A resource is selected for a paper. The resource can be a paper catalog entry, a calibration, an ICC profile, or a spot color associated with a paper. One or more calibrations associated with the resource are determined. Peer calibration groups are aggregated based on calibrations sharing the same calibration source data. The resources and groups are displayed so that an operator selects which resources to export or import within the printing system.

Methods for aggregating resources enhance the management of printing resources within a printing system. A shared attribute related to printing operations is used for aggregating a set of papers within a paper catalog used for printing operations at a printing device. Changes to a feature or a printing resource for one or more papers within the aggregated set of papers is managed using the integrated resources. Printing resources include the paper catalog, calibrations, and spot color adjustments. Integrated resource management also occurs across peer calibration groups to update resources.

To provide an image formation apparatus, image formation method, program, and management device that can efficiently form an image including a specific color.SOLUTION: An image formation apparatus 1 includes: an image formation unit 22 which can form an image including a specific color on a recording medium P; a determination unit 25 that determines the necessity of additional printing for image formation of printing job data on the basis of the formation order of each color based on the acquired printing job data and the arrangement order of each color in the image formation unit 22; and a division unit 25 that divides the printing job data when the determination unit 25 determines that the additional printing is required.SELECTED DRAWING: Figure 4

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 invention discloses an invisible anti-counterfeiting method based on a printing dot structure, electronic equipment and a storage medium. The method comprises the following steps: acquiring a first image of an anti-counterfeiting mark of a to-be-verified product; performing identification processing on the first image, and confirming a first verification area and a second verification area of the anti-counterfeiting mark; obtaining a first grid structure of the first verification area and a second grid structure of the second verification area according to the first image; and determining an authenticity identification result of the to-be-verified product according to the first grid structure and the second grid structure. The printing steps of the anti-counterfeiting mark are as follows: acquiring a preset standard image; based on a preset partitioning strategy, determining a first printing area and a second printing area in the standard image; and controlling a spot color printing module in the invisible anti-counterfeit printing equipment to print based on the first printing area of the standard image, and controlling a color-colliding printing module in the invisible anti-counterfeit printing equipment to print based on the second printing area of the standard image to obtain the anti-counterfeit mark.

The utility model provides a printing spot-color ink blending device which comprises an integrated ink storage tank, a plurality of beveled through pipes, a communicating tank, a connector seat, a premixing tank and a pneumatic mixing pump, and the integrated ink storage tank is communicated with the connector seat of the communicating tank through the beveled through pipes. The connecting tank and the premixing tank are respectively and fixedly provided with a connector seat, and the connecting tank and the premixing tank are communicated with each other; the pneumatic mixing pump is fixedly mounted on a connector seat of the premixing tank; the compact integrated ink storage tank overcomes the defect that a traditional ink blending device is loose in layout. And the compact structure reduces the raw material injection difficulty, reduces the preparation time and improves the working efficiency. The storage tank is not directly connected with production equipment, premixing is achieved through the connecting tank, the efficient mixing capacity of the pneumatic mixing pump is effectively combined, rapid and uniform premixing of raw materials is achieved, the burden of the production equipment is relieved, and the production period is remarkably shortened.

The disclosure aims at achieving highly-accurate spot color correction. An embodiment of the present invention is an image forming apparatus including: a reception unit to receive first Lab values of a target color and ΔLab values; a generation unit to generate image data of a layout where multiple patch images each containing an image section filled with a single color are arranged based on the first Lab values and the ΔLab values using a printer profile; a formation unit to form the multiple patch images on a print medium based on the image data of the layout; and an obtaining unit to measure a color in the image section of each of the multiple patch images formed by the formation unit and thereby obtain second Lab values for each of the multiple patch images.

An image processing system includes control circuitry. The control circuitry acquires print data of CMYK or RGB without a spot color specification. The control circuitry specifies an input profile to convert the print data into a color value in a device-independent space and specifies an output profile for a metallic colorant. The control circuitry separates the print data into five or more plates including the metallic colorant based on the specified input profile and the specified output profile to generate data for a printed material.

The utility model discloses a colorful transparent window panel for digital printing, which comprises a surface film base layer, back glue is arranged below the surface film base layer, a colorful ink layer, a white ink layer and a shading ink layer are arranged between the surface film base layer and the back glue, colorful transparent windows I are arranged on the surface of the surface film base layer and the surface of the colorful ink layer, and a transparent window II is arranged on the surface of the shading ink layer. A second colored transparent window and a third colored transparent window are arranged on the surface of the mask base layer, through holes are formed in the surface of the mask base layer, and keys are installed on the surface of the mask base layer. According to the utility model, a large amount of silk-screen printing plates are not required to be prepared, a large amount of spot-color printing ink is not required to be prepared, and the operation of repeatedly operating set silk-screen and drying is not required, so that a large amount of production materials, manpower and energy are saved, and the yield is improved; uV ink jet printing is used for replacing silk-screen printing of traditional ink, so that environmental friendliness is achieved.

The invention provides a printing file color management method and device and a storage medium. The method comprises the following steps: acquiring a characteristic color of a to-be-printed file, and preparing characteristic ink according to the characteristic color; acquiring spot color information of the characteristic ink; making a multi-channel color separation printing ICC file according to the spot color information and a CMYK color standard; and printing file color separation according to the multichannel color separation printing ICC file. According to the method, spot color ink manufacturing can be carried out according to color features of product images, color separation of exclusive ICC is achieved, the printing color gamut is directionally expanded, and printed products have uniqueness and novelty.

To develop a technique that can execute image processing corresponding to both an image including a color other than a special color and an image represented in the special color, to print the images.SOLUTION: An image processing apparatus acquires image data including first image data representing a first image in a plurality of colors including a color other than a special color and second image data representing a second image in the special color, acquires a representative coloring material amount indicating the amount of a plurality of coloring materials used for printing a representative color included in the special color with a printer, converts the first image data into first coloring material amount data representing the color of the first image in the amount of the plurality of coloring materials used in the printer on the basis of a color conversion profile, converts the second image data into second coloring material amount data representing the color of the second image in the amount of the plurality of coloring materials used in the printer on the basis of the representative coloring material amount, and combines the first coloring material amount data with the second coloring material amount data to generate third coloring material amount data.SELECTED DRAWING: Figure 1

Provided are an information processing apparatus, a control method, and a storage medium that can suppress occurrence of unintended print results. To this end, a plurality of spot colors that can be designated is displayed in a spot color setting screen. A user selects a color to be used as a spot color while visually checking the plurality of spot colors that the user can designate.

The invention discloses a color prediction method for packaging spot color printing primary colors and color matching application, and belongs to the technical field of spot color matching. Comprising the following steps: S1, constructing a multi-stage color gamut model; S11, collecting optical characteristic data of primary color ink; s12, generating all possible primary color mixed combinations, and converting the possible primary color mixed combinations into a color space to obtain a theoretical mixed color data set; s13, constructing a multi-stage color gamut boundary based on the theoretical mixed color data set, wherein the multi-stage color gamut boundary comprises a core color gamut, an extended color gamut and a boundary region; s2, real-time color matching processing is carried out; S21, color space coordinates of a target color are received; s22, performing color gamut pre-judgment on a target color based on the multi-stage color gamut model, and determining a matching type; s23, selecting a corresponding optimization algorithm according to the matching type to carry out formula calculation; and S24, outputting a printing ink formula and a matching quality report. According to the invention, the problems of low color matching precision and poor efficiency caused by inaccurate color gamut description and lack of intelligent judgment of the existing spot color ink color matching system are solved.

The invention relates to a method for calculating a parameter for pre-inking a printing unit of an offset printing press with a spot color, comprising the following steps: a) predetermining the printing unit, the spot color, a substrate to be printed with the spot color, and a specific ink coverage necessary for achieving predetermined color coordinates of the spot color to be achieved on the substrate, b) determining, from at least two different reference spot colors, the number of times that the vibrating roller is in contact with the ink fountain roller, which is necessary for obtaining the specific ink coverage, which has been predetermined in step a), by printing a predetermined spot color onto a predetermined substrate with a predetermined printing unit, each of at least two different reference spot colors has been printed with a different predetermined specific ink coverage onto the substrate that has been predetermined in step a) with a printing unit that has been predetermined in step a).

Methods and systems for determining an optimized ink color set for printing a pattern on an object are disclosed. The method in particular comprises steps implemented by a computer device for: defining, in a color space (19), a plurality of different color sets, each of said plurality of different color sets consisting of, on the one hand, spot colors enabling the continuous and accurate reproduction of one or more sensitive colors (C6, C7) of a reference pattern to be printed and, on the other hand, trap colors intended for producing color combinations in order to be able to obtain, in the coating, all the colors (C1, C2, C3, C4, C5) of the reference pattern to be printed other than the one or more sensitive colors (C6, C7); and for selecting one of these color sets taking into account at least one selection criterion in order to obtain an optimized color set in particular in terms of accuracy and / or ink consumption.

The utility model relates to a research and development device for a tangent plane color or spot color heat transfer printing process, and relates to the technical field of heat transfer printing process equipment, the research and development device comprises a frame body, a transfer printing mechanism for transferring a pattern on a transfer printing film to a target material, and a cooling assembly for cooling the transferred target material, the roller is rotationally arranged on the frame body and is rolled on a target material and a transfer printing film; the water inlet pipe is used for discharging cooling water into the cooling roller; and the drainage pipe is used for discharging the cooling water in the cooling roller. According to the transfer printing device, patterns on a transfer printing film are transferred to a target material through the transfer printing mechanism, then the transferred target material is rolled through the cooling roller, cooling water is continuously discharged into the cooling roller through the water inlet pipe, and therefore heat on the transferred target material is absorbed and finally discharged through the water discharging pipe; the probability of deformation of the pattern on the target material due to long-time heating is reduced, and finally the stability of the product quality is improved.

To perform variable magnification processing that is suitable for a printing process.SOLUTION: An image forming device, which simultaneously executes printing and fixing of color data included in printing data and printing and fixing of specific color data included in the printing data, comprises: first processing means that magnifies the printing data at a first magnification ratio and executes rasterization of outputting raster data for each color; and second processing means that magnifies the raster data on a specific color of the raster data for each color, at a second magnification ratio that is different from the first magnification ratio.SELECTED DRAWING: Figure 6

The application relates to the technical field of new inks, and provides a spot color separation method and system for ink recycling. The method comprises the following steps: acquiring an RGB image of a printed recycling product; performing pixel segmentation on the image, and marking color and coordinate data of the pixels; performing region clustering according to the color data, and obtaining a plurality of recycling regions; identifying the coordinates of the recycling regions, controlling a recycling device to dissolve and separate the ink of a target region, and obtaining mixed ink; constructing a spot color adjustment module, and blending the mixed ink with base ink to obtain spot color ink. The application solves the technical problem that, in traditional ink recycling technology, different color regions cannot be accurately separated, so that the purity of recycled new inks is low and the new inks cannot be directly reused, and achieves the technical effects of realizing high-precision color region segmentation through multi-level clustering, improving the purity of recycled new inks and the direct reuse rate of new inks by combining local dissolution and spot color blending processes.

To achieve accurate spot color correction.SOLUTION: An embodiment of the present invention is an image forming apparatus having: receiving means that receives a first Lab value and a ΔLab value of a target color; generation means that uses a printer profile to generate image data of a layout in which a plurality of patch images are arranged on the basis of the first Lab value and the ΔLab value, in which the plurality of patch images each include an image part filled with a single color; formation means that forms the plurality of patch images on a recording medium on the basis of the image data of the layout; acquisition means that measures the colors of the image parts of the plurality of patch images formed by the formation means, to acquire second Lab values for the plurality of patch images; and determination means that determines, from the plurality of patch images, a patch image having the second Lab value closest to the first Lab value of the target color.SELECTED DRAWING: Figure 3

The present disclosure provides a method for making spot color plates, comprising the following steps. A concentration step test is performed on a target fabric to generate a concentration characteristic curve of the target fabric. A computer software is used to separate a target pattern into a first group of spot color patterns. A first spot color concentration curve is generated based on the concentration characteristic curve and the first group of spot color patterns. The first spot color concentration curve is compressed to form a second group of spot color concentration curves. A straight line connecting the highest value and the lowest value of the second group of spot color concentration curves is set as a standard line. A reverse compensation curve is generated by subtracting the difference between the second group of spot color concentration curves and the standard line from the standard line. A second group of spot color patterns is generated based on the reverse compensation curve and the first group of spot color patterns. A plurality of spot color plates of the target pattern are made based on the second group of spot color patterns.

An image processing apparatus caused to perform controlling for making a first lightness compression ratio of a first image region higher than a second lightness compression ratio of a second image region based on a setting for printing an image using a spot color that is different from process colors being set, the first image region not corresponding to the spot color in the image, and the second image region corresponding to the spot color in the image, and controlling for displaying the image after the first controlling is executed.

The embodiment of the invention discloses a UV (ultraviolet) wide-color-gamut printing process for PET (polyethylene terephthalate) and PP (polypropylene) transparent base materials. The technology comprises the following steps that PET and PP transparent base materials are pretreated, in the pretreatment process, standing is conducted for 24 hours in a workshop at the temperature of 22-27 DEG C and the humidity of 40-60%, and Feida online static electricity elimination is conducted during printing; cMYK wide-color-gamut four-color ink or CMYK wide-color-gamut four-color ink and OGV spot-color ink are adopted for printing and then UV curing is conducted; white ink with high adhesive force and high covering force is printed for UV curing; and carrying out surface process treatment on the cured product, wherein the surface process comprises UV oil reversing, film covering, gold stamping and the like. The base material does not need to be pre-coated or prime-coated, and VOC emission is reduced; the white color ink is formed through one-time printing, and the process is shortened by 30%; the color gamut is expanded by more than 40%, and the color saturation is obviously improved; the adhesive force per square is greater than or equal to 4B, and the product can be folded for 500 times without color explosion; the method is suitable for industrial high-speed production, the rejection rate is lower than 5%, good application prospects are achieved, and a large number of applied products are put into the market.

The present invention relates to a multi-information thin-layer identification spot fingerprint of Sargentodoxae medicinal materials and a method thereof. It is characterized in that: a test sample and a control medicinal material solution are obtained by a simple and quick pretreatment method, and more than 30 chemical components of Sargentodoxae medicinal materials from fat-soluble to water-soluble are examined on 5 thin-layer plates under a variety of inspection conditions with gradient developing agents of different polarities, forming a set of thin-layer identification spot fingerprints and a method thereof. The total time is 2 hours, the extraction solvent is 4 ml, and the developing agent is 50 ml. Several thin-layer plates and tens of milliliters of developing agent carry more information than their high-performance liquid fingerprints, but the low cost, ultra-high efficiency, and intuitiveness of spot colors are not available in high-performance liquid fingerprints. It is simple, quick, and efficient, and has the application prospect of greatly improving the identification and subscription rate of Sargentodoxae medicinal materials in compound preparations and supervising their quality through multi-index evaluation.