57results about How to "Accurate overprint" patented technology

The invention discloses a method for manufacturing a wide-width color flexible preprinted corrugated carton, which comprises the steps of: plate making, ink preparing, varnish preparing, web-feed printing, cardboard flailing, cutter template manufacturing, die cutting and the like. Printed products manufactured by the method have bright color, accurate chromatograph, thick ink layers and vivid pattern restoration, can synchronously realize indexes of gloss, abrasion resistance, skid resistance and high-temperature resistance. In the method, an international environmentally-friendly honeycomb ceramic roll with water-based ink, water-based varnish and high reticles and the shortest ink transferring path are adopted, so the printing cost is saved, and the product quality and production efficiency are improved greatly.

A method for controlling multicolor print quality including a) placing color patches onto a print substrate; b) combining primary colors C, M, and Y to form secondary colors and overprinting the secondary colors and an opposite primary color thereof in a pre-determined halftone % to yield neutral grey tone; c) comparing the neutral grey tone with a black “K” halftone as a monochrome gray reference in the color patches, and d) amending the color patches to control color changes.

The invention relates to a printing mechanism achieving synchronous digital printing and rotary screen printing and a printing method. A printing method for effectively combining digital printing and rotary screen printing to finish synchronous overprinting is hardly achieved at present. The printing method comprises the following steps that firstly, a rotary screen conducts printing on a printed fabric, and a screen printing pattern is formed; secondly, feature points are assigned on the screen printing pattern, feature points in a front rotary screen circumference and a rear rotary screen circumference are shot through a front camera, and the deviation value of the rotary screen is obtained; thirdly, the digital printing pattern is subjected to corresponding zooming operation according to the deviation value of the rotary screen, and after digital printing, a combined printing pattern is formed on the printed fabric; and fourthly, corresponding feature points of the combined printing pattern or corresponding feature points of the screen printing pattern and the digital printing pattern are shot through a rear camera, whether deviation exists between digital printing and rotary screen printing or not is detected, and whether an accurate overprinting effect is completely achieved or not is judged. According to the printing mechanism and the printing method, respective advantages of digital printing and rotary screen printing are truly and effectively combined.

The invention relates to a group-type logistics bidirectional holographic positioning overprinting machine, which belongs to the technical field of anti-counterfeit printing equipment. The overprinting machine is characterized by consisting of an unwinding device, a photoelectric recognition control device, an electric control base, a traction device, an overprinting device and a winding device, wherein the winding and unwinding devices are integrated with the electric control base; the overprinting device is positioned above the electric control base; the winding and unwinding devices are positioned on both sides of the overprinting device; the photoelectric recognition control device is arranged in front of the overprinting device and matched with the unwinding device; the unwinding device consists of a group of reel printing stock unwinding devices and multiple groups of reel holographic anti-counterfeit film unwinding devices; each unwinding device corresponds to a group of photoelectric recognition control devices; the unwinding modes of the multiple groups of reel holographic anti-counterfeit film unwinding devices are independent unwinding; and group sequence arrangement patterns correspond to preserved overprinting regions of reel printing stocks one by one. The equipment of the invention has the advantages of realizing correct and continuous overprinting, reducing rejection rate, shortening production period, effectively lowering production cost and greatly improving production efficiency.

A print medium, on which individual labeling information made up of one or more labeling elements that are selectively shown, of common labeling information made up of a plurality of labeling elements, is formed by a printing device, wherein the common labeling information is printed in advance and a background color of an area where at least a plurality of labeling elements is printed is a print color that is printable by the printing device, is disclosed.

The invention discloses a full-automatic machine which comprises an embossing machine body and a plurality of clamps used for locating the embossing machine body. The embossing machine body is arranged on table boards, an operating rail of the embossing machine body is arranged on the table boards, the number of the table boards is plural, and the table boards are arranged side by side and connected through turning systems, a shifting car and turning rails of the shifting car are arranged on the turning systems, the shifting car is used for shifting the embossing machine body, a signal emission device is arranged on the shifting car, the turning rails are rectilinear rails and perpendicular to the plane of the table boards, and included angles of 90 degrees are formed between the turning rails and the table boards. The full-automatic machine has the advantages of being high in automation degree and capable of enlarging product category, improving efficiency for dozens of times, improving product quality, reducing labor intensity and reducing production cost and complexity of labor.

The invention provides a tipping paper gravure online fine gold stamping device and gold stamping process. The device is mounted between a final-stage printing color set of a gravure press and a glazing machine unit. The device comprises a gravure cold stamping machine rack. Paper guide rollers are mounted on the two sides of the lower portion of the gravure cold stamping machine rack. A glue tank, a cold stamping plate roller set, a pre-curing UV lamp, a cold stamping press roller set, a curing UV lamp set, a winding machine and an unwinding machine are mounted in the gravure cold stamping machine rack from bottom to top in sequence. The winding machine and the unwinding machine are used in cooperation to complete winding and unwinding of a cold stamping film. The cold stamping plate roller set coats cold stamping glue to tipping paper. The cold stamping press roller set laminates the tipping paper with the cold stamping film to complete transfer of the gold stamping effect without aheating device. Energy consumption is reduced, and the overprinting effect is accurate.

The invention discloses a multifunctional micro-nano structure color film production device and a work method. The multifunctional micro-nano structure color film production device comprises an unreeling device which unreels a plastic film, a drawing device which draws the plastic film so as to convey the plastic film forward, an intaglio printing device which performs image-text printing on the plastic film, a first drying oven heating system which performs printing ink drying on the plastic film, a scraper coating device which coats the surface of the plastic film with a resin layer, a second drying oven heating system which performs resin layer drying on the plastic film, a micro-nano structure impressing device which performs micro-nano structure image impressing, a cooling device which performs cooling on the plastic film, a coiling device which coils the plastic film and a bridge crossing guide roller which guides feeding of the film, wherein the intaglio printing device and themicro-nano structure impressing device realize printing image-text and micro-nano structure image-text overprinting. The multifunctional micro-nano structure color film production device can realize production of a micro-nano structure color film, and can does not use printing ink for printing at all or only use a small amount of environmentally-friendly ink for the printing.

The invention relates to a volute iron printing side mark device of an iron printing machine, which belongs to the field of iron printing equipment, and is mainly used for solving the problems of low utilization ratio of raw materials and increased labor cost because the conventional iron-printing equipment of the prior art cannot normally and accurately print volute irons. The volute iron printing side mark device is realized through the following technical scheme that the volute iron printing side mark device comprises a leaning body and a side mark, wherein the leaning body comprises a main support rod A, a lateral support A, a longitudinal support A and a space regulation device, and a bearing pack A is installed on the main support rod A, is connected with a pressing plate of the leaning body through a connecting rod A and is connected with the longitudinal support A through a connecting part A; and the side mark comprises a main support rod B, a lateral support B, a longitudinal support B and a pressing regulation device, wherein a bearing pack B is fixedly installed on the main support rod B, is connected with the pressing plate of the side mark through a connecting rod B and is connected with the longitudinal support B through a connecting part B. The volute iron printing side mark device is mainly used in the volute iron printing equipment.

The invention provides screen frame positioning equipment and a screen frame positioning method. The screen frame positioning equipment comprises a base, a worktable, a conveying device, a driving device, guide rails, positioning pillars, a dual-rod left-and-right positioning cylinder, a positioning push block, an artificial screen frame positioning device, a cross beam, a cross beam cylinder and a scraper assembly. The screen frame positioning equipment and the screen frame positioning method have the benefits that the mounting and dismounting are convenient, and a screen frame does not need to be changed; the safety is achieved, the manual positioning can be simulated, and the positioning is accurate; after power failure, the manual operation can be automatically converted; panels are called out, the overprinting is accurate, and the efficiency is high.

The invention belongs to the technical field of printing, and particularly relates to a composite printing machine. The machine comprises an unwinding unit, a base material receiving unit, a unit printing mechanism, a digital printing mechanism, a unit gloss oil applying mechanism and a winding unit which are sequentially arranged. The digital printing mechanism comprises a jet printing rack, a jet printing roller and a pressing roller are rotatably mounted on the jet printing rack, and a jet printing assembly is arranged at the position, located above the jet printing roller, of the jet printing rack. According to the composite printing machine, spot color printing is conducted on a printing base material through the unit printing mechanism, digital printing is conducted on the printing base material through the digital printing mechanism, the printing base material is wound around the jet printing roller for ink jet printing in the digital printing process, and the printing base material is good in conveying stability and high in printing precision and is matched with the unit printing mechanism to achieve complementary advantages; and wide-width high-speed full-color printing of the printing base material is achieved, the width of the base material can exceed 1 m, and the conveying speed of the base material is high and exceeds 100 m/min.

The invention provides a novel single-paper press which is different from the existing offset press in the aspects of two functions: first, an ink-controlling device for and adjusting and controlling ink supply of an inking roller is not required to adjust and control mass color in the whole process of printing due to the ink supply of printed material so that automatic mass color control is achieved; an electric device which can be used for heating and adjustment is arranged in an ink-stirring roller and an ink-ending controlling device; second, the new process in which the printing can be completed only by taking printing stocks in an exchange way changes the original multi-exchange process. In the attached drawing, only a double-side printing monochromatic group is provided; the press with the printing process can be connected with two, four, five and six color classes as well as connected with double-side printing and single-side printing. Moreover, the press provided by the invention can be produced in large size and can print thick material, namely such thick plane plates as PVC, metal, etc; furthermore, the press ensures that the offset press plays a more important role in commercial products such as decoration, packaging, etc., of home appliance.