35 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 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.

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.

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.

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.

The invention provides a spectrum matching-based spot color production switching method from digital proofing to offset printing. The method comprises the following steps of: obtaining target spectrum characteristic data; color matching processing is conducted on the target spectrum data through a preset ink optical characteristic database, offset printing color matching data are obtained, and the offset printing color matching data are base ink types and base ink combinations needed for ink blending; on the basis of a preset spectrum matching algorithm, blending calculation processing is conducted on the target spectrum characteristic data, offset printing matching data are obtained, and the offset printing matching data are used for determining the type of the base ink or the dosage proportion of the base ink in the base ink combination; and on the basis of the offset printing color matching data and the offset printing matching data, generating a corresponding offset printing result to realize seamless, high-fidelity and metamerism-free spot color conversion from digital proofing to offset printing production, so that the dependence on artificial experience is reduced, the proofing cost is reduced, and the production efficiency and the color consistency are improved.

A method implemented by a computer device for defining sets of different colors in a color space, each of which consists of spot colors that make it possible to reproduce one or more sensitive colors of the reference pattern to be printed continuously and exactly, and of process colors to be used to produce color combinations, so as to be able to obtain all of the colors of the reference pattern to be printed, other than the one or more sensitive colors, in the livery, and for selecting one of these sets of colors taking into account at least one selection criterion, in order to obtain a set of colors that is optimized in particular in terms of precision and or ink consumption.

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

The invention provides a myopia-preventing spot color ink blending system, which comprises a spectrum acquisition module used for acquiring spectrum data of a target color block in real time; the colorimetric analysis module is used for converting the spectral data into CIEXYZ tristimulus values and Lab color space parameters and positioning a yellow-green area; the algorithm calculation module is used for generating an optimal ink ratio based on the mask equation, the Uilenson correction and the genetic algorithm; the stirring control module is used for mixing the raw materials and regulating and controlling the temperature; and the quality detection module is used for detecting the viscosity, density, granularity and chromatic aberration of the printing ink in real time. According to the technical scheme, full-automatic and high-precision myopia-preventing ink blending is realized.

A method for manufacturing a panel having a substrate, a decorative layer that includes a digital print, and a translucent or transparent wear layer may involve providing the substrate with the digital print by jetting one or more inks from a set of inks using a digital inkjet printer. The inks of the set of inks may include a binding agent. An additional spot color channel in the digital inkjet printer may be used to jet a colorless ink with an increased concentration of binder or binding agent.

The invention provides a gradient-optimized spot color ink color matching method and system, and belongs to the technical field of printing, the gradient-optimized spot color ink color matching method comprises the following steps: S1, preparing a plurality of base ink samples with different concentration gradients; s2, preparing the base ink sample into a color display sample sheet, and preparing a color sample corresponding to the base ink sample; s3, measuring spectrum data of each color sample through spectrum detection equipment; s4, based on the spectral data, performing first screening on the database building samples by analyzing a spectral change rule to obtain initial sample points; s5, based on the initial sample points, analyzing the linear relation between the color intensity and the concentration of the initial sample points, performing secondary screening, and selecting two sub-samples; s6, calculating the optical constant of the base ink by using the sub-samples screened out for the second time; and S7, constructing a corresponding base ink database according to the optical constants for spot color ink color matching. In the printing process, for the needed target color, the optical constant can be used for reversely deducing the base ink, labor can be reduced, and efficiency and color matching accuracy can be improved.

A data processing system implements techniques for mapping RNA to identify genes therein. Reporter probes are bound to molecular targets on the RNA. Each reporter probe is associated with a spot color representing a wavelength of light emitted by a fluorophore. Specific target genes are associated with a barcode comprising a specific set of spot colors. An RNA mapping pipeline is provided to identify candidate gene transcripts that include a complete or partial barcode. The mapping pipeline determines various quality metrics for each of the candidate gene transcripts and analyzes each of the candidate gene transcripts using machine learning models to determine whether the candidate gene transcripts are false codes or negative probes. The mapping pipeline then calculates a quality score for each of the candidate transcripts based on the quality metrics and whether the candidate transcripts are predicted to be false codes or negative probes.

The invention discloses a color evaluation method for large-scale set book printing. The method comprises the following steps: designing a color test sample; sending the designed color test specimen page to a plurality of test printing factories for printing, and collecting a printing draft of the color test specimen page; performing multi-dimensional evaluation on each collected printing draft according to a pre-constructed color evaluation strategy to obtain a total scoring result of each printing draft; the pre-constructed color evaluation strategy is used for evaluating the color separation color and gray balance uniformity of the character color separation standard test pattern area, evaluating the cover color of the cover simulation area of the book to be printed, and evaluating the spot color tone and the light dot of the color gradient area; evaluating the filling condition of black dots in the fine line in the dot filling detection area in the fine line, and evaluating the fine line registration condition in the fine line registration detection area to obtain a scoring result of a corresponding dimension; and screening the plurality of test printing factories based on the total scoring result of each printing draft to obtain qualified printing factories.

The special-effect sand-feeling oil is applied to the surface of the package, so that the finished product not only has extremely strong visual impact force, but also is more wear-resistant and scratch-resistant than a scratch-resistant matt film on the market. The characteristic can effectively resist friction damage in the transportation process, and the completeness of the appearance of the product is kept. In some traditional processes, when secondary processing such as gold stamping is carried out on a reverse UV frosted surface, the adhesive force between a gold stamping layer and the frosted surface is poor, according to the process, a laser effect pattern is located below a film and is not prone to falling off, and special-effect sand sense oil is printed on the film and is not prone to being scratched; no plastic packaging film is arranged outside the special-effect sand sense oil, so that the product has high-grade sense; two effects of lens and laser are generated on the same layout by utilizing a holographic photoetching technology, and the lighting effect intensity of the lens is controlled by adjusting the depth of the two groups of spot-color black ink, so that a unique and fine halo effect is created. The fashion sense and the science and technology sense of packaging are improved, and meanwhile the identification degree and attraction of products are enhanced.