74 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.

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.

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.

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.

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.

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.

An information processing apparatus includes a processor configured to execute a process of detecting an object that includes readable information regarding spot color designation in document data, excluding the detected object from a drawing target at a time of outputting the document data, and reflecting spot color drawing designated by the readable information on the drawing target.

The invention discloses spot-color UV ink for traffic signs. The spot-color UV ink comprises the following components: 15-56.5% of a pre-mixed pigment, 40-70% of UV-cured resin, 3-10% of a photoinitiator and 0.5-5% of an auxiliary agent, the auxiliaries comprise a flatting agent, a defoaming agent and a dispersing agent; the preset pigment is selected from one standard traffic color of yellow, orange, red, green, blue, brown and black; the preparation method of the spot-color UV ink for the traffic signs is characterized by comprising the following steps: (a) mixing UV curing resin and a pre-mixed pigment according to a ratio, and pre-dispersing to form a base material; (b) grinding the base material in a nanoscale sand mill until the particle size of the pigment is less than or equal to 1 mu m; (c) adding a photoinitiator and an auxiliary agent, and stirring for 30-60 minutes at the speed of 800-1500 rpm to form a homogeneous mixture; (d) filtering the mixture, and controlling the aperture of a filter screen to be less than or equal to 1 mu m to obtain finished ink; the UV ink has the advantages that the color space and the retroreflection brightness of the UV ink can meet the standard requirements, the color is stable, and the problems of inaccurate color and the like caused by the influence of the voltage waveform of a printer nozzle are solved.

To provide a unique ink color set of a process color and a spot color providing a combination for surprisingly and unexpectedly beneficial performance improvement when being used in an inkjet printing process.SOLUTION: A method for producing a printed image on a substrate includes the steps of: selecting no more than eight process color from a color set of known process ink; providing two or more spot color to form the color set including the process color and the spot color; and optionally printing an image using the formed color set. A ratio of the number of the spot color to the number of the process color is at least 0.5:1.SELECTED DRAWING: Figure 1

The invention discloses a spot color ink concentration control device for package printing, and relates to the technical field of package printing. The device comprises a bottom plate, one side of the top of the bottom plate is fixedly connected with a blending mechanism, and one side of the top of the bottom plate is fixedly connected with a mixing mechanism. The precision and efficiency of ink blending are greatly improved through the blending mechanism, the three storage tanks can store different basic ink or additives correspondingly and are convenient to take and use according to needs, a first pump body is matched with a high-pressure spray head, cleaning liquid can be sprayed into the storage tanks in a high-pressure mode through a first conveying pipe and a second conveying pipe, and the cleaning liquid is sprayed into the storage tanks in a high-pressure mode. The second pump body is connected with the storage tank through the connecting pipe, raw materials can be accurately conveyed to the filtering assembly through the third conveying pipe, the whole blending process is accurate and controllable, manual blending errors are greatly reduced, and the consistency of the concentration of all batches of printing ink is guaranteed.

The invention provides a color code design and preparation method and system special for camera color correction for detecting the spot color of a laser printing product, and relates to the technical field of printing, and the method comprises the steps: setting a stepping value according to a basic spot color and a ground white ink dot value, and generating a dot combination value; generating corresponding digital color bars and arranging the digital color bars into a page image; printing and outputting a color bar printed product; measuring a chromatic value and calculating a chromatic aberration, a lightness difference, a saturation difference and a hue angle difference with the target spot color; color bars with the color difference smaller than or equal to 6.3 and uniform color difference size and parameter positive and negative distribution are screened and fixed to the black rough surface base material to form the special color code. The color detection device is matched with a laser paper base material and is used for spot color printing online detection of cigarette packets, cosmetics and the like, and the color detection precision and the detection efficiency are improved.

A trace ink supply system based on a variable plate diameter comprises an ink fountain, an ink delivery roller arranged in the ink fountain, a printing plate roller matched with the ink delivery roller in a tangent mode and an ink circulation system connected with the ink fountain, the ink delivery roller is connected with a swing arm, and the swing arm rotates around a fixed point along with the change of the diameter of the printing plate roller. The positions of the drop roller in the horizontal direction and the vertical direction are changed; the ink fountain comprises a circulating ink fountain and an ink supply fountain, the ink supply fountain is provided with a first adjusting mechanism for adjusting the position of the ink supply fountain in the horizontal direction, and the circulating ink fountain is provided with a second adjusting mechanism for adjusting the position of the ink supply fountain in the vertical direction; an ink outlet of the ink circulation system is connected with the inner layer cavity, and an ink return opening of the ink circulation system is connected with the circulation ink groove. The device adapts to the diameter change of a printing plate roller, reduces the use amount of spot-color ink, and solves the problems of more spot-color ink stock and overdue storage.

The invention discloses a color mixing and ink supplying system and a control method thereof, and relates to the technical field of ink-jet printing. The color mixing and ink supply system comprises an ink storage unit, a color mixer and a circulating ink supply device, the ink storage unit is used for storing basic ink of different colors; the liquid inlet end of the color mixer is communicated with the ink storage unit and is used for mixing the basic ink to form spot color ink; the liquid inlet end of the circulating ink supply device communicates with the liquid outlet end of the color mixer, the liquid outlet end of the circulating ink supply device is suitable for communicating with an ink inlet of the printing nozzle, and the liquid return end of the circulating ink supply device is suitable for communicating with an ink outlet of the printing nozzle. The structure of the color mixing and ink supplying system is improved, the printing color gamut is improved, the equipment manufacturing cost is low, the ink usage amount is small, the uncontrollability of manual ink mixing is effectively avoided, and the color mixing efficiency is improved.