33results about How to "Accurate color registration" patented technology

Disclosed are an apparatus for and a method of correction color registration in an electro-photographic printer. An apparatus for correcting color registration in an electro-photographic printer, in which exposure start points of each color unit for a photosensitive drum are adjusted to superpose images developed in a plurality of colors on matching positions of a transfer belt, includes an exposure unit to project light beams on the photosensitive drum to form latent images of one or more marks for each color unit. A developing unit is also disclosed to generate developed images by developing the latent images of the marks and a mark sensing unit is provided to detect the developed images transferred on a surface of the transfer belt for a predetermined time period. A color registration controller stores information on time points at which the developed images are detected and compares the number of the time points with the number of the marks. Thus, the color registration controller controls the exposure start points in response to the compared result.

The invention relates to a method for printing an embossment microstructure with a positioned color register, in particular to a method for the integrated online printing of an embossment type optical microstructure layer which is positioned and nested with an ink color. The method comprises the following steps: taking a microstructure area as a special color for printing; printing a molding ink at a specified position; in the state that the ink area is not completely dried and solidified, attaching and die-casting the ink area in a positioning mode by an embossment microstructure mother set roller on a next printing plate roller so that the ink is embedded in an embossment microstructure groove on a mother set; and solidifying and molding a hinge for drying the ink in a coating area of a printing material and a microstructure image, wherein the embossment shaped microstructure on the mother set roller is completely copied to the ink surface of a printing stock in a mirror image mode, and a copying molding area serves as a color register printed at the specified position and can be connected with front and back printing colors to form a +/-0.15 millimeter printing registration accuracy. The method can achieve the positioned color register with a common printing and the accurate positioning of pattern and ink printing on the mother set.

A method and apparatus for correcting a color registration are provided for improving the quality of images of an image forming apparatus. A surface condition is estimated of an intermediate transfer belt used to correct a color registration. A determination is made as to whether an abnormal section exists on the intermediate transfer belt. Location information is stored regarding the abnormal section on the intermediate transfer belt, if the abnormal section exists. A mark for color registration correction is formed on a normal section, other than the abnormal section. The color registration is corrected using the mark. Accordingly, if a partially inferior section appears in the intermediate transfer belt and a mark is not normally formed, the color registration is successfully corrected.

The invention relates to an extinction casting PE film and a production process thereof. The extinction casting PE film comprises a heat sealing layer, an intermediate layer and a corona layer, wherein the heat sealing layer comprises extinction masterbatch, a PP elastomer, PP ternary coating resin, opening masterbatch, a slipping agent and a processing aid; the intermediate layer comprises cast linear PE resin, high density polyethylene and a processing aid; and the corona layer comprises cast linear PE resin. The extinction cast PE film prepared by the composition is suitable for the requirements of printing equipment: excellent thickness uniformity, stable friction coefficient, 10% high tensile strength, high tensile breaking force, low surface gloss of extinction surface, high overallhaze of the film, fine appearance of the film surface, suitability for high-speed printing of intaglio and flexographic plates, accurate color coating and no deviation during intaglio multi-color printing.

An image adjustment method for an image forming apparatus in which an adjustment image is formed by transferring a plurality of reference images formed by a color component to be the reference among a plurality of color components and a plurality of images to be adjusted, which are formed by other color component to be adjusted, onto a transfer medium so that the images to be adjusted are superposed on the reference images, the density of the formed adjustment image is detected, and an image forming position of the other color component to be adjusted is adjusted based on the detected density of the adjustment image. The density of the surface of the transfer medium is detected, and the position of forming the image to be adjusted is adjusted, based on the detected density of the surface of the transfer medium and the detected density of the adjustment image.

A transfer belt driving control method and transfer belt driving control apparatus for color registration correction. The color registration correction method and apparatus performs the color registration correction by setting a pattern forming section, in which patterns for the color registration correction are able to be formed, and a non-pattern forming section, in which the patterns are not able to be formed, on a transfer belt in which the patterns are formed, performing the color registration correction by driving the transfer belt at a first speed in the pattern forming section, and driving the transfer belt at a second speed, which is faster than the first speed, in the non-pattern forming section.

The present invention relates to printing machinery, and is especially one kind of monochromatic lustering printing machine. The monochromatic lustering printing machine includes paper feeding unit, printing unit, lustering unit, stoving unit, paper withdrawing unit. The paper feeding stage of the paper feeding unit is connected to the paper transferring cylinder, the impression cylinder in the printing unit has one end connected to one end of paper transferring cylinder in the lustering unit, one end of the impression cylinder in the lustering unit and the paper guide air cushion in the infrared drying and ultraviolet curing system are connected to the paper withdrawing toothed bar in the paper withdrawing unit. Compared with available technology, the printing machine of the present invention has comprehensive functions of offset printing, lustering printing and flexible printing.

The invention provides a topping protection tool. The topping protection tool comprises a hub and hub window protection plates matched with hub windows of the hub in shape, and the hub window protection plates can be tightly attached to the hub windows of the hub through extrusion. The topping protection tool further comprises a rim protection ring, a center hole protection plug and a spoke protection plate, wherein the rim protection ring is matched with the hub side vertical plate of the hub in shape, the center hole protection plug is matched with a center hole of the hub, the spoke protection plate is matched with spokes of the hub in shape, the rim protection ring can be tightly attached to the rim side vertical plate of the hub through extrusion, the center hole protection plug is inserted into the center hole of the hub, and the spoke protection plate can be tightly attached to spokes of the hub through extrusion. The topping protection tool can meet topping protection requirements of different shapes, and is accurate in topping, easy and convenient to use, capable of being used repeatedly and low in cost.

The invention provides film-free computer direct plate making equipment and a making method. The equipment comprises an exposure light source, a print image imaging device and a printing plate carrying device, which are arranged coaxially; the exposure light source is used for irradiating light to cure a photosensitive material loaded on a printing plate; the print image imaging device is used for forming a target image to replace a film, and the target image masks the light from the exposure light source so that a corresponding exposure image is formed on the printing plate; and in order to improve the exposure efficiency and the plate making efficiency, the print image imaging device is provided with a light guide layer for trimming non-uniform exposure light to uniform parallel light. Meanwhile, a plate making process formed by the plate making equipment can adapt to the plate making requirements of high precision and low cost.

The invention discloses a printing method of a melamine resin product. The printing method comprises the following steps of baking, preparation of melamine-formaldehyde resin slurry water, slurry brushing, baking, cutting, preheating, compression molding, stained paper pasting, gold adding, polishing, inspection and packaging. According to the printing method, the melamine tableware product is manufactured through three times of compression molding, the melamine tableware product with a plain surface is manufactured through the first time of compression molding, stained paper is printed on the outer surface of the melamine tableware product through the second time of compression molding, stained paper is pasted to the inner surface of the melamine tableware product through the third time of compression molding, so that colors and patterns on the melamine tableware product are not prone to being destroyed, and the melamine tableware product has bright colors and luster as porcelains and is exquisite in appearance, high in hardness, resistant to collision and corrosion and good in stability.

The invention discloses a high-speed base paper digital pre-printing machine and aims to solve the problem that an existing pre-printing machine is not suitable for small-batch orders. The high-speedbase paper digital pre-printing machine comprises an outer cover, an active force mechanism, an ink stack ink wiping mechanism, a printing mechanism, a position detection mechanism, a drying mechanismand an electric control system, wherein the active force mechanism comprises an active force motor, a central roller and a tensioning roller, and the printing mechanism comprises a spray head, a trolley plate, a negative pressure cylinder, a primary ink box, a secondary ink box and a trolley motor. The high-speed base paper digital pre-printing machine is reasonable in design, the problem of small-batch orders can be solved through cooperation of components such as the active force mechanism, the ink stack ink wiping mechanism, the printing mechanism and the like, so that the high-speed basepaper digital pre-printing machine is suitable for both large-batch orders and small-batch orders; the high-speed base paper digital pre-printing machine integrates multiple colors to the trolley plate, the printing width is not limited, and the application range is wide; the high-speed base paper digital pre-printing machine adopts the design of the central roller, the base paper clings to the central roller, wrinkles and deformation are avoided, the color matching is more accurate, printed patterns are more delicate, and the high-speed base paper digital pre-printing machine is suitable forhigh-end customers.

An electrophotographic image forming apparatus for enhancing color registration is provided. The electrophotographic image forming apparatus includes a developing unit including a photosensitive medium, an image transferring device, and a paper feeding device. The image transferring device includes a pair of conveying rollers, a conveying belt, and a plurality of transfer rollers. The conveying belt is supported by the conveying rollers and rotates around the conveying rollers and conveys a recording medium by attaching a recording medium to a surface thereof. The plurality of transfer rollers are disposed inside the conveying belt and form a transfer nip between the recording medium and the photosensitive medium. The paper feeding device provides the recording medium to the image transferring device. The force of the image transferring device that maintains the position of the recording medium with respect to the conveying belt during image transferring is equal to or greater than the maximum force applied to the recording medium by the paper feeding device.

The present invention discloses a lead-free glass container produced though a thermal transfer printing process, and belongs to the field of glass manufacturing. According to the present invention, lead-free white broken glass, white quartz sand, soda ash, sodium feldspar, calcite, sodium sulfate, cobalt powder, and a heat-resistant substrate film with color pattern are adopted as raw materials, and lead-free glass container manufacturing and thermal transfer printing are performed to obtain the finished product. According to the present invention, the method has characteristics of simple production, less production steps, high efficiency, no pollution, small occupation area and less investment, the pattern printed on the glass container surface has characteristics of good adhesion, high gloss, clear pattern, accurate chromatic printing, bright color, safety and no toxicity, and after lettering is performed, oil spraying sand blasting, secondary injection molding and other post-treatments can be performed.

The invention discloses an image chromatography printing control method, device and equipment and a storage medium, and relates to the technical field of ink-jet printing. According to the method, the triggering edge of a printing stock is obtained, pixel point sampling is conducted on the edge of a to-be-colored image, the actual distance between the triggering edge of the printing stock and the edge of the to-be-colored image is obtained according to sampling points, and therefore the triggering distance is automatically adjusted to control a sprayer to spray gloss oil, gold stamping ink and other ink to cover the to-be-colored image. Accurate color register of the covering layer and the image is achieved when ink covering printing is conducted on the image to be subjected to color register, and the image printing quality is improved.