132 results about "Flexography" patented technology

A method for producing a surface finish on an electrically conductive substrate includes transferring an ink having a plurality of electrically conductive particles onto an area of a predetermined form and / or size on a surface of the electrically conductive substrate by gravure and / or flexo printing. The ink is heated to a temperature that is higher than a melting point of the electrically conductive particles to create a melt. The melt solidifies into the surface finish on the electrically conductive substrate.

The invention discloses a preparation method and device of a paper environment-friendly product adopting flexographic printing UV glue, the device comprises a gluing device, a die cutting device and a laminating device, the gluing device comprises a transmission assembly, an oil coating device and a gluing assembly, and the oil coating device and the gluing device are sequentially arranged along the transmission assembly; the laminating device comprises a mounting plate, a positioning frame, a pressing device, a lower pushing device and two-side pushing devices, the positioning frame, the pressing device, the lower pushing device and the two-side pushing devices are mounted on the same side face of the mounting plate, the positioning frame is arranged under the pressing device, the lower pushing device is arranged below the positioning frame, and the two-side pushing devices are arranged on the left side and the right side of the positioning frame respectively. The material pushing devices on the two sides obliquely extend from bottom to top. A through hole is formed in the portion, below the forming plate, of the mounting plate, and the through hole is in a long strip shape. A traditional UV adhesive tape is replaced with an online UV glue coating method, the production cost is greatly reduced, the production efficiency is improved, the use flexibility is high, the practicability is high, and high popularization significance is achieved.

Mold cylinder (06), wherein the mold cylinder (06) has a cylinder head (16) and two cylinder pins (17), and wherein the mold cylinder (06) has at least one cylinder channel (21), and wherein at least one holding device (22) for at least one application mold (04) is arranged in the cylinder channel (21), and wherein the at least one holding device (22) has a front fastening device (23) for receiving a beginning (26) of the at least one application mold (04) and a rear fastening device (24) for receiving an end (27) of the at least one application mold (04), and wherein the rear fastening device (24) is designed as a clamping device (24), and wherein the front fastening device (23) is pivotably arranged in the cylinder channel (21), and wherein two adjustable lateral support points (28;29) are arranged, on which the front mounting device (23) is supported in a circumferential direction (U) relative to the cylinder channel (21), characterized in that the two lateral support points (28; 29) are each adjustable by means of a respective eccentric device (32; 33) and that the two eccentric devices (32; 33) are connected to each other via at least one connecting device (36) movable relative to the cylinder channel (21) and that an adjustment mechanism (34) is arranged, by means of which the relative position of the two eccentric devices (32; 33) and the connecting device (36) is adjustable on the one hand to the cylinder channel (21) on the other hand and that in addition to the two lateral support points (28;29) a central support point (31) is arranged at which the front mounting device (23) is supported in the circumferential direction (U) relative to the cylinder channel (21) and that the front mounting device (23) is arranged pivotably about the central support point (31) in the cylinder channel (21).

The utility model relates to the technical field of printing machines, in particular to flexible printing equipment with adjustable cold and hot gold stamping positions. Comprising a rack, a plurality of flexographic printing devices, a guide column arranged at the top of the rack, an adjusting plate which is connected to the top of the rack in a sliding mode and is connected with the guide column in a sliding mode, a locking piece used for locking the adjusting plate to the guide column or / and locking the adjusting plate to the rack, and digital jet printing devices sequentially arranged on the adjusting plate. The gold stamping film placing mechanism and the waste rolling mechanism are arranged on the adjusting plate and located above the hot gold stamping device, the digital jet printing device, the cold gold stamping device and the hot gold stamping device are all arranged above the flexographic printing devices in a suspended mode, and the adjusting plate can be adjusted to the position between any two flexographic printing devices. The digital jet printing position and the cold and hot gold stamping position can be adjusted conveniently, cold gold stamping and hot gold stamping can be integrated for selective use, and practicability is high.

This invention relates to the field of flexographic printing plate-making technology, specifically to a printing plate engraving device and method. The device includes a base, a vacuum adsorption worktable, a gantry frame, an engraving head assembly, and an anti-clogging mechanism. When cleaning is required, the drive assembly rotates the limiting shaft, causing the threaded rod to extend or retract via threaded transmission. This pushes the mounting base and dust collection hood to reciprocate on the upper surface of the vacuum adsorption worktable, simultaneously pushing the mounting arm to reciprocate along a translational track. This activates the external negative pressure dust collection system, allowing the dust collection hood to thoroughly suction the upper surface of the vacuum adsorption worktable, sucking in and collecting resin debris clogged in the adsorption holes and scattered on the surface. This technical solution actively removes debris from the vacuum adsorption worktable, restoring the adsorption holes to unobstructed flow, thereby maintaining a uniform distribution of adsorption force, preventing localized warping of the plate, and ensuring consistent micro-dot engraving depth.

To provide a water-based flexographic ink capable of obtaining a printed matter having good storage stability and good leveling property and blocking resistance and a laminate having good laminate strength.SOLUTION: There is provided a water-based flexographic ink comprising a pigment, an aqueous urethane resin and / or an aqueous acrylic urethane resin, water and an organic solvent, wherein the organic solvent includes two or more alcohol solvents (A) having different boiling points, the alcohol solvents (A) includes an alcohol solvent (a1) which is a glycol monoalkyl ether having a boiling point of 115 to 180°C and an alcohol solvent (a2) having a boiling point lower than the boiling point of the alcohol solvent (a1) and the water-based flexographic ink contains 0.5 to 9.5 mass% of the alcohol solvent (a1) and 0.5 to 8.5 mass% of the alcohol solvent (a2) in the total mass of the water-based flexographic ink and has a surface tension of 28 to 35 mN / m.SELECTED DRAWING: None

The invention discloses a preparation method of coated gift packaging paper. The preparation method comprises the following operation steps: S1, pulping: respectively pulping bleached sulfate softwood chemical pulp, bleached sulfate broadleaf wood chemical pulp and alkaline hydrogen peroxide bleached poplar chemimechanical pulp, and mixing to form mixed pulp; s2, auxiliary material adding, wet paper sheet forming and pre-drying; s3, coating and sizing are conducted, specifically, the front face and the back face of the paper sheet are coated with a coating respectively, and the coating comprises coating-grade light calcium carbonate, coating-grade talcum powder, a dispersing agent, sodium hydroxide, modified acrylic copolymer emulsion, polyvinyl acetate latex, coating starch, sodium carboxyl cellulose, a lubricating agent and a defoaming agent; s4, carrying out post-drying and carrying out super-soft calendering treatment by adopting eight rollers and seven pressing areas; the invention also provides the coated gift packaging paper prepared by adopting the preparation method, the smoothness of the coated gift packaging paper is greater than 1200s, the roughness of the coated gift packaging paper is less than 1.2 microns, and the coated gift packaging paper completely meets the requirements of the coated gift packaging paper for absorbing and drying gravure or flexographic printing water-based ink.

A method and apparatus are provided for drying a flexographic plate previously subjected to washing with a water-based or solvent-based liquid. The method involves providing a support member made of a thermo-conductive material, wherein the support member comprises at least a first main surface adapted to allow the support of the plate to be dried. The method involves positioning the plate to be dried on the support element so that a base face of the plate rests on the first main surface. The method further provides the step of heating the support element to a preestablished temperature so that the thermal energy supplied to the support element is transferred by conduction to the plate resting on the support element so as to cause evaporation of residual liquid contained in the plate. The apparatus is provided for carrying out the drying method.

A treatment method for a waste aqueous development liquid generated through development of a flexographic printing original plate by using an aqueous development liquid, the method including: a first filtration step of filtering the waste aqueous development liquid at 5° C. or more and 48° C. or less through a microfiltration membrane to give a recovered liquid and a concentrated waste liquid; and a reuse step of reusing the recovered liquid for development of a flexographic printing original plate.

To provide a paperboard with excellent flexographic printing quality.SOLUTION: A paperboard includes a coating layer on at least one surface of a paper substrate, wherein the coating layer contains an epichlorohydrin compound.SELECTED DRAWING: None

The invention discloses a valve terminal type centralized ink supply system which comprises a box body, a double-valve terminal is fixedly installed in the box body, and the double-valve terminal is externally communicated with an ink return pump and an ink inlet pump; the double-valve terminal structurally comprises a large valve terminal and a small valve terminal which are connected into a whole, the outer end faces of the large valve terminal and the small valve terminal are respectively provided with corresponding control interfaces and liquid inlets and outlets, each control interface is respectively provided with an angle seat valve, and each liquid inlet and outlet is correspondingly communicated with an ink or cleaning liquid inlet and outlet pipeline; each angle seat valve, the ink inlet pump and the ink return pump are correspondingly provided with a two-position three-way electromagnetic valve, the ink inlet pump is further provided with a speed regulating valve, and the ink return pump is further provided with another speed regulating valve. The invention belongs to the technical field of flexographic printing equipment, the assembly efficiency is greatly improved, the later maintenance is clearer, the utilization rate of ink and a cleaning agent is greatly improved, and the printing quality is more stable.

A processing apparatus for processing a photosensitive flexographic printing plate precursor is disclosed which includes a novel and improved filter system and allows continuous processing by re-using used processing solution without requiring frequent user intervention to replace clogged filter material. The filter system includes three tanks in a cascade configuration whereby the solution in the third tank can suitably be used for rinsing the processed plate so that no separate rinsing station is required.

The invention relates to the technical field of printing auxiliary tools, in particular to an auxiliary pasting device and method for a cylinder printing plate for flexographic printing. The auxiliary pasting device comprises a rack, a display amplification unit is installed on the rack, and a printing cylinder is rotationally connected to the rack and located in a camera shooting area of the display amplification unit; the adjusting frame is connected with the machine frame, a containing frame is rotationally connected to the adjusting frame, the rotating axis of the containing frame is parallel to the rotating axis of the printing cylinder, and a positioning area used for containing a flexible printing plate is formed on one side of the containing frame; the adjusting and aligning unit is used for enabling the placing frame to move in the axial direction of the printing cylinder, the adjusting and aligning unit is connected with the rack, and the adjusting and aligning unit is connected with the placing frame; the device has the effects that the pasting efficiency and pasting alignment precision of the flexible printing plate are improved, the influence of human factors such as the proficiency of operators on the pasting precision of the flexible printing plate is reduced, and the later cigarette case printing quality is improved.

1. Name of the designed product: printed rubber sleeve (full-plate without carving type). 2. Use of the designed product: used for flexographic printing and printing. 3. Design points of the designed product: in shape. 4. Picture or photo best indicating the design points: perspective view.

1. Name of the designed product: Flexographic printing press (LF series). 2. Use of the designed product: for printing. 3. Design points of the designed product: in shape. 4. Picture or photograph best indicating the design points: perspective view.

A method for inline offset flexographic printing of tactile ink involves using an offset color printing unit to print a base color on the surface of a paper packaging box, followed by two or more flexographic printing steps to print the tactile ink onto the paper packaging box, resulting in a tactile ink thickness of ≥6μm on the packaging box surface. After finishing the paper packaging box using this method, the surface exhibits a matte gloss effect, and a subtle velvety feel can be detected by touch, enhancing the packaging box's aesthetics. Compared to single-pass printing of tactile ink, this invention uses a two-step flexographic printing process, improving the leveling effect of the tactile ink on the paper packaging box surface, increasing the ink thickness, and effectively reducing the accumulation of tactile ink during printing due to increased ink thickness and viscosity. Inline production results in less product deformation, smoother subsequent processes, and improved efficiency and product yield in later stages.

The utility model discloses a quick replacement device for an ink roller of a six-color flexo printing machine, and belongs to the technical field of printing machinery. The quick replacing device for the ink roller of the six-color flexographic printing machine comprises a bottom plate, universal wheels are installed at the four corners of the bottom end of the bottom plate, a stand column is installed on one side of the top end of the bottom plate, a top frame is installed at the top end of the stand column, a height adjusting mechanism is connected to the bottom end of the top frame and comprises a one-way threaded rod, and the top end of the one-way threaded rod is rotationally connected with the bottom end of the top frame; the bottom end of the one-way threaded rod is rotationally connected with a holding seat, the bottom end of the holding seat is rotationally connected with the top end of the bottom plate, the outer side of the one-way threaded rod is sleeved with a lifting arm, a frame is installed on the side, away from the one-way threaded rod, of the bottom end of the lifting arm, and clamping seats are arranged on the two sides of the bottom end of the frame; the height of the ink roller can be effectively and rapidly adjusted, the ink roller can be conveniently and rapidly positioned and installed, and the ink roller adjusting device has high practical value.

The invention relates to a rotary printing press (1), in particular a gravure printing press or a flexographic printing press, for printing on material webs (2), comprising at least one inking unit (4) for the exchangeable mounting of a screen roller (6), further comprising an impression cylinder (8) assigned to the inking unit (4), and further comprising a control unit (10) for carrying out a printing job for printing on the material web (2), wherein the control unit (10) can be connected / is connected to at least one data memory (12), wherein individual specific data values of available mountable screen rollers (6) can be stored in the data memory (12). The invention is characterised by at least one measuring and / or evaluation device (14) for detecting at least one individual specific data value of at least one screen roller (6) used in the printing job during the printing job, wherein the control unit (10) is designed in such a way that, during or upon completion of the printing job, the detected individual specific data value of said screen roller (6) can be stored in the data memory (12) and / or individual specific data values already stored in the data memory (12) can be updated and / or supplemented for the screen roller (6).

This utility model relates to the field of cold-sealing film production technology. It provides a printing device for producing reusable cold-sealing film, including a support base. A take-up roller and an unwind roller are respectively installed at both ends of the top of the support base. A flexographic printing assembly is installed at the end of the top of the support base near the take-up roller. The device also includes a water tank, fixedly connected to the end of the top of the support base near the unwind roller. Support frames are fixedly connected to both ends of the water tank, and a hollow cooling roller A is fixedly connected between the two support frames. A confluence pipe and a diversion pipe are rotatably connected to the two ends of the hollow cooling roller A. This utility model provides a printing device for producing reusable cold-sealing film, which solves the problem in the prior art where heat in the airflow is difficult to concentrate and transfer to the cold-sealing film, easily affecting the drying efficiency of the cold-sealing film.

The object of the present invention is to provide an aqueous flexographic ink that achieves a balance of long-term stability, color density, leveling properties, and retort resistance. [Solution] The above problem is solved by providing a heat-resistant organic pigment, a binder resin, and water, wherein the bulk density of the heat-resistant organic pigment is 0.15 g / cm³. 3 The above is a water-based flexographic ink, or one containing a heat-resistant organic pigment, a binder resin, and water, wherein the bulk density of the heat-resistant organic pigment is 0.15 g / cm³. 3 The above problem can be solved with water-based flexographic ink that is resistant to retort processing.

The present invention addresses the problem of providing a photosensitive resin composition which enables printing having good solid-concealing properties with respect to cardboard, while maintaining cleaning performance as a water-developing plate, and which exhibits excellent long-term storage properties and resistance to design chipping due to impact. The means to solve the problem of the present invention is a photosensitive resin composition containing (A) a thermoplastic elastomer, (B) hydrophilic polymer particles, (C) a photopolymerizable monomer, (D) a photopolymerization initiator, (E) a low-polarity plasticizer, and (F) a high-polarity plasticizer, wherein the low-polarity plasticizer (E) is an organic compound that has, as its constituent atoms, only carbon atoms and hydrogen atoms, and the high-polarity plasticizer (F) is an organic compound that has, as its constituent atoms, carbon atoms and hydrogen atoms, as well as atoms other than carbon atoms and hydrogen atoms.

The drawer type ink box module easy-to-replace structure of the flexo printing machine comprises a printing machine rack, an ink box module is arranged on the printing machine rack, an installation position matched with the ink box module is arranged on the printing machine rack, and a bearing seat capable of being pulled and sliding towards the outer side of the installation position is arranged on the installation position. The bearing seat is provided with a bearing plate which can be pulled and slide towards the outer side of the bearing seat, and the ink box module is detachably installed on the bearing plate. According to the ink box module, the bearing seat capable of being pulled and sliding towards the outer side of the mounting position is arranged at the mounting position, and the bearing plate capable of being pulled and sliding towards the outer side of the bearing seat is arranged on the bearing seat, so that the ink box module can be moved out of the outer side of a printing machine when the ink box module needs to be disassembled or cleaned and maintained, and the ink box module can be disassembled or cleaned and maintained conveniently; printing quality is improved, and long-term normal work of the printer is guaranteed.

The invention discloses a mesh type drying device and a drying method for a flexographic printing substrate, and belongs to the technical field of printing drying. The device comprises a combustion box and a drying oven formed by splicing a drying oven bottom box and an openable and closable drying oven upper box, a combustor is arranged in the combustion box and connected with a fresh air inlet pipe and a fan, the fan is communicated with the drying oven bottom box, a printing stock guide roller is arranged in the drying oven bottom box, the top of the drying oven bottom box is communicated with the drying oven upper box, and the drying oven bottom box is connected with the combustion box through an air return pipeline. An air volume regulator, a temperature-resistant sealing rubber strip, a flow guide rib, a temperature sensor and other components are arranged in a matched mode. The method comprises the standardization steps of printing stock clamping, heating air supply, mesh drying, return air circulation and parameter adjustment. The problems that an existing device is poor in drying uniformity, insufficient in operation stability and non-uniform in drying process are solved.

1. Name of the product in this design: Engraved rubber sleeve (1). 2. Intended use of this design: for flexographic printing and printing. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

The purpose of the current invention is to provide a photosensitizing resin component for... Flexographic printing (photosensitive resin composition for flexographic printing) Excellent resistance to solvents; photosensitive resin components for flexographic printing. The graphic of the present invention consists of the following components (A) through (E): (A) styrene- Butadiene-styrene block copolymer type one (SBS):(B)styrene-butadiene-styrene Type II block copolymers (SBS):(C)Polybutadiene or its derivatives;(D) (A) photopolymersible monomers; and (E) photopolymerization initiators. and consists of 5 to 100% by weight of (B), 10 to 40% by weight of (C), 40 to 200% by weight of (D) and 4 to 20% by weight of (E) compared to (A);