52 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 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.

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.

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.

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.

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

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.

An information processing device includes at least one processor configured to: refer to a spot color setting information, the spot color setting information being information generated by registering a shape of an object and a predetermined spot color in association with each other; replace, if a shape of an object indicated by image data included in a print job matches a shape of an object registered in the spot color setting information, a color of the object indicated by the image data by a spot color associated with the matched shape of the object registered in the spot color setting information; and output print data reflecting the spot color of the object indicated by the image data.

The utility model relates to the technical field of color ink proportioning, and discloses a gravure spot color ink automatic proportioning device which comprises a fixing frame, an automatic proportioning mechanism is arranged on the upper middle portion of the inner side of the fixing frame and used for automatically proportioning color ink, and a mixing box is fixedly connected to the bottom of the inner side of the fixing frame and used for automatically proportioning color ink. The top of the mixing box is provided with a mixing mechanism, the mixing mechanism is used for uniformly mixing various kinds of color ink in the mixing box, the right end of the bottom of the inner side of the fixing frame is provided with a water outlet mechanism, the water outlet mechanism is used for cleaning the interior of the mixing box, and the automatic proportioning mechanism comprises a plurality of ink outlet valves. According to the utility model, the ink outlet valve automatically controls the ink outlet quantity, the metering pump realizes precise conveying of color ink, the reinforcing fiber layer is arranged in the conveying pipe, stable conveying is ensured, the flow sensor on the outer wall of the conveying pipe monitors the flow speed in real time, closed-loop adjustment is formed with a control system, precise quantitative output of the color ink is realized, and the complexity is reduced.

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.

The present invention relates to a method for calculating the parameters for the pre-inking of a printing unit of an offset printing press with a spot colour comprising the following steps: a) predetermining a printing unit, a spot colour, a substrate to be printed with the spot colour and a specific ink coverage necessary to achieve predetermined colour coordinates of the spot colour to be achieved on the substrate, b) determining the number of vibrator roller contacts to the ink duct roller being necessary to obtain, by printing the predetermined spot colour with the predetermined printing unit onto the predetermined substrate, the specific ink coverage having been predetermined in step a) from at least two different reference spot colours, wherein each of the at least two different reference spot colours has been printed with the printing unit having been predetermined in step a) onto the substrate having been predetermined in step a) with a different predetermined specific ink coverage.

The invention discloses a Lab prediction method for printing spot color screen hue, and relates to the technical field of package printing. Aiming at the problems that spot color full-tone hue cannot be predicted in advance and the effect after printing is not consistent in the prior art, the spot color is divided into six color systems, three characteristic spot colors are selected for each color system, Lab values of 100% and 50% tones of a printing sample and a digital sample and paper white are collected, a full-tone Lab value is calculated through a CIE Lab space linear interpolation method, and the spot color full-tone hue can be predicted in advance. And establishing a compensation model of the two by using a multiple linear regression method, popularizing and applying to all spot colors of corresponding color systems, and verifying that each tone E00 is less than or equal to 2.0. According to the method, the 0-100% tone hue of the spot color before printing is accurately predicted, the digital sample can accurately simulate the printing effect, brand owners can control the design effect in advance, rework waste is avoided, the applicability is wide, the precision is high, large-scale equipment transformation is not needed, and the popularization cost is low.

The application provides a kind of intelligent image processing method, equipment and storage medium for UV curing 3D inkjet printing, the method is by contour feature extraction to slice image, support area is intelligently identified based on interlayer contour change and geometric feature;According to the contour feature, the shrinkage judgment result and the overhanging area identification result, the printing data corresponding to the color ink layer, white ink layer, varnish layer, shaping layer and support layer are generated respectively, the above printing data is used as spot color channel, combined with the CMYK channel of color ink layer, and half tone processing is carried out on each channel data, finally a TIF format image file containing at least eight channels is generated and output, used to drive UV curing 3D inkjet printer, equipment and storage medium store for execution to realize intelligent image processing method.The application realizes the improvement of printing precision and material utilization rate, effectively solves the problems of support generation, color management and quality control in multi-material 3D printing.

This utility model provides a sand mill for the production of UV four-color and spot color inks, belonging to the field of sand mill technology, to solve the problem of inconvenient daily maintenance and cleaning of equipment; it includes a base; a sand milling component is fixedly installed on the top of the base, and an auxiliary structure is fixedly installed on the top of the base, with a discharge component installed inside the auxiliary structure; an adjusting screw is fixedly installed inside the base; an adjusting seat is slidably installed inside the base, and the adjusting seat is threadedly connected to the outside of the adjusting screw, and the adjusting seat is fixedly connected to the sliding seat; the sand milling cylinder is installed on the base through the cooperation of the sliding seat and the guide rail. When maintenance or cleaning of the equipment is required, the adjusting screw is rotated by controlling the motor device, which drives the adjusting seat and the sliding seat to move, and the sand milling cylinder can be easily removed from the equipment; this design greatly simplifies the installation and disassembly process of the sand milling cylinder, making it convenient for operators to perform daily maintenance and cleaning work.

The application discloses a spot color formula prediction method based on an enhanced elephant trunk search algorithm, and comprises the following steps: acquiring the absorption spectrum of a base color and a spot color, calculating the molar concentration of the base color by using a least square method, and obtaining the base color composition quantity of the spot color; constructing an enhanced elephant trunk search algorithm; calculating the molar concentration of the base color by using the enhanced elephant trunk search algorithm, and predicting the spot color formula. The spot color formula prediction method based on the enhanced elephant trunk search algorithm narrows the base color search space by using the least square method, reduces the search workload, and improves the search speed; by constructing the enhanced elephant trunk search algorithm, the search range is increased suddenly, the possibility of the algorithm falling into a local optimum is reduced, the elephant search direction is corrected, the search direction behavior intervention is realized, the search ability and the search speed of the algorithm are improved, and finally the color matching efficiency and the accuracy are improved.

The utility model discloses a lining paper ink spot color sample coating device which comprises a supporting frame, a sample coating groove is formed in the top of the supporting frame, supporting rollers are symmetrically and rotatably connected to the inner wall of the supporting frame, and stand columns are symmetrically and fixedly connected to the top of the supporting frame relative to the sample coating groove. Through cooperation of the supporting frame, the sample coating groove, the supporting roller, the winding motor and the winding roller, lining paper can be supported and wound, at the moment, through cooperation of the stand column, the ink storage box, the ink pump, the driving groove, the driving column, the lifting block, the supporting strip, the fixing block, the ink roller, the flow dividing pipe and the atomization spray head, the lining paper can be conveniently and rapidly coated; the height of the printing ink roller can be adjusted according to the actual demand of the lining paper, so that the printing ink roller can be attached to the surface of the lining paper, and the surface of the printing ink roller can be uniformly sprayed and covered by utilizing the flow dividing pipe and the atomizing nozzle, so that the lining paper can be uniformly coated by the printing ink roller.