2010 results about "Color printing" patented technology

A tandem color electrostatographic printer apparatus has five or more color printing stations or modules for applying respective color separation toner images to a receiver member to form a pentachrome color image in a single pass. A fuser station fuses the pentachrome color image. A clear toner overcoat is then applied to the fused pentachrome toner image and enhanced glossing of the image is provided by a belt glosser to improve color gamut.

An Agile-Beam Laser Array Transmitter (ABLAT) uses an array of emitters and an array of lenses to project electromagnetic beams over a wide angular coverage area in the far field. Differences in the separation pitches of the two arrays allows the ABLAT to project beams to contiguous and/or overlapping positions, depending on the ratio of the separation pitches and the lens focal length. Compared to other beam steering technology, the ABLAT is a smaller, lighter, and more efficient means of projecting beams over wider angular coverage areas. Various embodiments can be used in any beam steering application, including, but not limited to: free-space optical communications; light detection and ranging (lidar); optical scanning (e.g., retinal or bar-code scanning); display projection; image capture; optical character recognition; scanning laser microscopy; non-destructive testing; printing; facsimiles; map making; web inspection; color print processing; phototypesetting and platemaking; laser marking; material processing; DNA analysis; and drug discovery.

A method and apparatus for color printing on a dark textile piece, the method including the steps of digitally applying a white ink layer directly onto a textile piece, optionally curing the white ink layer, and digitally printing a colored image on said ink layer.

In monochrome printing mode, a first correction value is set for correcting printing positional deviation between ink droplets printed during forward and reverse main scanning passes. In color printing mode, a second correction value is set for correcting printing positional deviation between ink droplets printed during forward and reverse main scanning passes. An adjustment value is determined for reducing printing positional deviation during forward and reverse main scanning passes. For this, in monochrome printing mode the first correction value is used as an adjustment value, and in color printing mode at least a second correction value is used to determine an adjustment value. Following this, the adjustment value is used to adjust printing positions during forward and reverse main scanning passes.

The invention discloses a three-dimensional (3D) printer, the 3D printer comprises an X-Y working platform, spray heads installed on the X-Y working platform, light-emitting diode (LED) ultraviolet (UV) light sources, moving supporting frames, a base, fixed supporting frames, a supporting platform and UV resin material-feeding units, wherein the fixed supporting frames and the supporting platform are installed on the base, and the spray heads are connected with the UV resin material-feeding units. Through use of the 3D printer, one-way single-layer printing and one-way multi-layer printing can be carried out, multi-material printing, color printing, coating printing and other effects can be realized, and the printing efficiency is improved by times compared with that of the traditional 3D printers.

A process for manufacturing three-dimensionally shaped polymeric sheets and laminates with color-matched digitally printed full color ink jet images. A flexible thermoformable polymeric baseweb is placed in an ink jet printer and a solvent-based (non-aqueous) digital printing ink is applied directly to the baseweb, in the absence of an ink receptive layer on the baseweb, to form a decorative pattern in multiple colors in a single pass through the printer. The finished product can be thermoformed or injection molded to a three-dimensional shape. A protective topcoat can be laminated to the digitally printed sheet prior to the thermoforming and/or injection molding step. A process for making color-matched products comprises producing a software-driven image of a pattern on a screen representing a standard color print pattern; evaluating and adjusting the standard displayed on the screen using software-driven image related adjustments for hue, contrast, lightness/darkness, etc.; producing a test print by applying a decorative pattern to the baseweb by a digital ink jet printer and making an optional software-driven image-related adjustment in the standard to color match the standard to the test print image; and when the adjusted standard image displayed on the screen is acceptable, passing an image-related output to the digital ink jet printer for printing a decorative print color-matched to the accepted onscreen standard.

The invented antifalse mark is different from general color printing label and traditional holographic mark on aluminum foil. The mark includes basal lamina, information layer, isolation layer, color printing layer, special type printing layer and not dried glue layer etc. Technical flow includes following procedures: designing, plate making, raw materials preparing, die pressing, color printing, special type printing, glue spreading, die cutting, parting cut and checking up pack. The invention possesses advantages of integrating multiple antifalse techniques, easy of recognition and convenient use.

The invention relates to a method for distinguishing false iris images based on robust texture features and machine learning, which comprises the following steps: preprocessing true iris images or false iris images; extracting the partitioned statistical features of a robust weighted partial binary pattern; and carrying out training and sorting of a support vector machine, and judging whether thetest images are false iris images or not according to the output result of a sorter. The method of the invention combines SIFT descriptors and partial binary pattern features to extract the robust texture features, the description of textures is more stable because of the robustness of the SIFT to brightness, translation, rotation and scale change, and the support vector machine enables the method to have better universality. The invention can be used for effectively distinguishing the false iris images, has the advantages of high precision, high robustness and high reliability, can be used for distinguishing false irises such as paper printing irises, color printing contact lenses, synthetic eyes and the like, and can improve the safety of the system when being applied to the applicationsystem in which iris recognition is used for carrying out identification.

A method for scheduling print jobs for a plurality of printers (40,42,44,46, 48, 50) includes, for each of a plurality of print jobs, determining a number of pages of a first print modality (such as black only printing) and of a second print modality (such as color printing) for the print job. A file header is determined, based on the number of pages of the first and second print modalities in the print job. The file header is associated with the print job and the print job transmitted, along with the file header, to a print job scheduler (10). The scheduler schedules a sequence for printing the plurality of print jobs by the plurality of printers, based on minimizing, for at least one of the plurality of printers, a number of periods of time during the sequence of printing where the at least one printer is in a non-operational mode; and/or maximizing continuous run time for at least one of the printers.

Methods and devices for forming, such as by printing, high quality, high throughput, ultraviolet curable gel ink images on flexible substrates for packaging applications are disclosed. The methods and devices have excellent image quality and do not require pinning of the ink during color printing or nitrogen inerting during curing.

The invention relates to a method and a device for three-dimensional color printing, wherein at least a first printing material with a first printing material color and at least another printing material with another printing material color is used to construct a printing object (7), wherein an arrangement of the printing materials in a surface region and a near surface interior region of the printing object (7) is determined based on a desired color reproduction of the printing object.

A technique for profiling a color printing device employs a modified Neugebauer color mixing model. The modeling technique makes use of a variable dot gain value and “n factor.” The variable dot gain adjustment value may vary according to the particular tristimulus channel under evaluation. In addition, the variable dot gain value may vary according to the particular Neugebauer primary over which a halftone dot is printed. Accordingly, the technique may rely on an array of different dot gain values and n factors that correspond to different combinations of color channels and overprint conditions. As a further feature, the techniques may rely on a dot gain formula that relates halftone dot variation, i.e., fringe thickness, to the size of the halftone dot. This relationship tends to produce a dot gain model that more closely resembles the actual dot gain behavior on a printing press.

There are provided an ink jet head unit which is capable of incorporating a large number of ink jet heads with ease and precision, and an ink jet printing apparatus incorporating the ink jet head unit. The ink jet head unit performs printing color printing by using a plurality of ink nozzle arrays each for use in printing one line, the plurality of ink nozzle arrays corresponding to a plurality of basic colors. A plurality of head groups are each formed by a plurality of ink jet heads, and have the plurality of ink nozzle arrays arranged therein such that the plurality of ink nozzle arrays are divided among the plurality of head groups. A plurality of sub-carriages have respective ones of the plurality of head groups mounted thereon. A unitizing carriage has the plurality of sub-carriages mounted thereon.

A thermal transfer film which can carry out continuous thermal transfer in a large area directly forms a single-color or colorful printing pattern with excellent layer film structure intensity on the transferred surfaces of various metal, glass or ceramic substances. The manufacturing technique of the thermal transfer film includes that printing is carried out a whole volume of continuous plastic film material or paper material the surface of which comprises a release layer with the ink of a high temperature-resistance dye by a gravure printer to generate the ink layer of the high temperature-resistance dye; the layer of a high temperature-resistance thermal reaction hot melt adhesive is coated on the surface of the ink layer of the high temperature-resistance dye. The thermal transfer steps include: a. the steps of degreasing, dust removing, purifying of the transferred surface of a substance; b. the step of fictitiously fixing: the thermal transfer film comprising the ink of the high temperature-resistance dye and the layer of the high temperature-resistance thermal reaction hot melt adhesive are taken to carry out thermal transfer on the transferred surface of the step a to lead the ink layer of the high temperature-resistance dye and the layer of the high temperature-resistance thermal reaction hot melt adhesive to be fictitiously fixed on the transferred surface; c. the step of roasting for leading the ink of the high temperature-resistance dye and the layer of the high temperature-resistance thermal reaction hot melt adhesive to be firmly combined with the transferred surface.

There is provided a thermal activator for a heat sensitive adhesive sheet capable of preventing or removing the heat sensitive adhesive and a product of denaturation of the heat sensitive adhesive from adhering to means for transporting the heat sensitive adhesive sheet and a printer apparatus utilizing the thermal activator. In a thermal activator for a heat sensitive adhesive sheet having at least heating means for activation (a thermal head 40 for thermal activation and a heating element H) for heating and activating a heat sensitive adhesive layer of a heat sensitive adhesive sheet (a heat sensitive adhesive label R) constituted of a printable surface (a thermal coat layer 501 and a color printing layer 502) and the heat sensitive adhesive layer (K) formed on one and another side of a base material (base paper 500) respectively and transport means (a platen roller 41 for thermal activation and the like) for transporting the heat sensitive adhesive sheet in a predetermined direction, there is provided anti-adhesion means (sheet materials 81 and 600 for cleaning) for preventing the heat sensitive adhesive or a product of denaturation of the heat sensitive adhesive from adhering to the transport means or removal means (a scraper 50, a rotary body 610 having a spiral groove or protrusion, a cylindrical rotary body 700 having a spiral blade, wires W, scraping tools 900 and 1100 in the form of a cutter blade, a transfer material 60, a cleaning roller 70, or the like) for removing the heat sensitive adhesive and the product of denaturation of the heat sensitive adhesive that have adhered to the transport means.

A color printing system which deposits colors on a separation by separation basis provides trapping to correct misregistration between printer output colors due to imperfect placement of the separation colors. The system includes a trapping calculation processor, determining trapping requirements based on visibility, measured in a color space in which equivalent color differences in human color perception are approximately equivalent values.

The invention provides a preparation method and a product of full-color carbon dots for multi-color fluorescent printing. Citric acid is used as a single carbon resource, a nitrogen-containing compound is added, and a solvothermal reaction is carried out for 6-8 hours for obtaining a full-color carbon dot mixture. The fine separation of blue, green, yellow and orange fluorescence carbon dots can be realized through the regulation and control of the volume ratio of methanol to dichloromethane by using a column chromatography method. The obtained carbon dots have excellent water solubility, light stability and luminosity, so that the obtained carbon dots can be used to prepare multi-color fluorescent ink, and multi-color printing is realized. The preparation process provided by the inventionis simple, the repeatability is strong, the reaction condition is mild, and the product has excellent stability and practicability.

A method and apparatus for processing image data representing a color separation or mono-color image includes processing the color separation image data or mono-color image data in accordance with first and second or more halftone screen processings at different screen angles and obtaining results of the processings and combining the results of the processings to generate composite image data of the first and second or more halftone screen processings. The resulting print of the composite image data forms relatively pleasing rosettes or diamond structures in the particular color.