54results about How to "Speed up printing" patented technology

The invention provides a method and a device for ink-jet printing on curved container surfaces. The method involves moving a curved surface for printing relative to at least one row of nozzles which is aligned transversely to movement direction. Ink drops are discharged at the ejection timing which is adjusted according to respective printing gaps of ejection nozzles with respect to each drop, so that printed pattern twisting caused by different printing distances can be compensated and outline printing can be improved.

The invention discloses a random color two-dimensional code based anti-counterfeiting method, which comprises the steps of S1, adopting random color two-dimensional codes to be associated with anti-counterfeiting information, coding anti-counterfeiting information, association information and two-dimensional code color information through a database table, storing the coded information into a database, wherein the color of each two-dimensional code is allocated randomly; S2, processing the two-dimensional codes in the step S1 into tags which are attached to commodities or directly printing the two-dimensional codes on packages of commodities; S3, recognizing the anti-counterfeiting information, the association information and the two-dimensional code color information carried in the two-dimensional codes through a two-dimensional code recognition device; S4, performing color decoding on the two-dimensional code color information recognized in the step S3 through codes of the database table, and finally outputting the decoded colors according to a preset shape; and S5, distinguishing the authenticity according to the recognized anti-counterfeiting information. By adopting random color two-dimensional codes generated according to the method and a random background, a generated PDF with two-dimensional codes being vectors can be printed with high quality directly.

The invention discloses a solvent-resistance polyurethane rubber roller and a manufacturing method and application thereof, and belongs to the field of rubber roller preparing. The solvent-resistance polyurethane rubber roller is achieved through combination of multicomponent systems and is formed by mixing and pouring a material component A, a material component B and a material component C, wherein the material component A comprises, by mass, 40%-60% of polyester polyol and 7%-20% of toluene disocynate, the material component B comprises, by mass, 2%-10% of 4-4'-diphenylmethane diisocyanate, 5%-40% of plasticizer and 1%-4% of filler, and the material component C comprises, by mass, 2.5%-8% of chain extender and 0.02%-0.05% of catalysts. The wear-resistance, solvent-resistance and mechanical properties of the solvent-resistance polyurethane rubber roller are obviously improved, and the solvent-resistance polyurethane rubber roller can be widely used in the fields of printing, coating and painting.

The invention relates to a bovine base solution packaging raw paper used in production of liquid packaging boxes. The base solution packaging raw paper comprises a surface layer, a core layer, a base layer and a coating layer and is characterized in that the surface layer comprises chemical hardwood pulp and softwood pulp; the core layer comprises mechanical pulp, chemical hardwood pulp and unbleached pulp; the base layer comprises unbleached pulp; and the coating layer comprises calcium carbonate, porcelain clay, adhesive, a water-retaining agent and a water repellent agent. The base solution packaging raw paper disclosed by the invention has the advantages of environment protection, low cost, high physical strength as well as good decoration property and printing performance of products, accordance with the food requirement and no harm to human bodies, wherein the using amount of chemicals is reduced so that the environment pollution is reduced, and the using amount of chemicals is reduced so that the cost is reduced.

The invention provides functionalized polypropylene (PP) for flexible packages and a preparation method thereof. The functionalized PP for flexible packages comprises the following components: (a) 30to 70 weight parts of irradiated PP powder; (b) 30 to 70 weight parts of non-irradiated PP powder; and (c) 0.4 to 15 weight parts of polar co-monomer formed by subjecting the irradiated PP powder in component (a) and the non-irradiated PP powder in component (b) to graft copolymerization, and optionally comprising (d) antioxidant and/or lubricant, wherein, the PP powder in component (a) is irradiated in the protective presence of nitrogen with the irradiation source thereof being a cobalt source, the irradiation dose thereof being 20kGy to 60kGy, and the dose rate thereof being 2 to 0.5 kGf/h.The invention intends to prepare PP with higher polarity and improve the print and compound properties of PP films by grafting the polar monomer of glycidyl methacrylate (GMA) and styrene on PP powder on the basis of the pre-irradiation method.

The invention provides scrape-removable water-based ink for flexographic printing, which comprises raw materials of color paste, base ink and an admixture, wherein the base ink comprises water-based silver ink, shading black, peeling oil and protective water-based oil. The invention further provides a preparation method of the scrape-removable water-based ink for flexographic printing. The preparation method comprises the steps as follows: step 1, the water-based silver ink is prepared for reserve; step 2, the shading block is prepared for reserve; step 3, the peeling oil is prepared for reserve; step 4, the protective water-based oil is prepared for reserve; step 5, the base ink is prepared for reserve; step 6, the color paste is prepared in an agitator for reserve; step 7, the color paste prepared in the step 6 is added to water and dispersed and ground in a dispersion machine for reserve; and step 8, the color paste, the base ink and the admixture are taken by weight percentage andevenly agitated and mixed, and then the product is prepared. The invention provides the one-step water-based ink and the manufacturing method thereof, which have the advantages that the production process flow of special water-based ink is changed, the manufacturing time is shortened, production procedures are reduced and complete grinding is not needed.

The invention provides a preparation method of an inorganic micro-powder/PBAT full-degradable composite film. A certain proportion of inorganic micro-powder is added before the process of producing the PBAT film through hot melting film blowing, so that the fully-degradable composite film with excellent performance is produced; the inorganic micro-powder is derived from various kinds of stone powder in the nature and is rich in reserves and low in price; by adding a certain amount of inorganic micro-powder, the easy adhesion characteristic of the PBAT film is reduced, the stiffness of the filmis improved, and therefore the PBAT film blowing bag making process is facilitated; meanwhile, the production cost is reduced by adding the inorganic micro-powder, and a shortcut is provided for rapid popularization and application of full-degradable materials.

The invention relates to a production process of a crystalline silicon double-sided solar battery, comprising the following steps of: etching to enable a silicon substrate to have an etched face; manufacturing a window which accords with an electrode pattern on a backlight face of the silicon substrate; carrying out heat treatment on the silicon substrate to form a PN junction in the window; washing the silicon substrate; plating at least two layers of antireflection films on a light reflective face of the silicon substrate; plating the antireflection film on a backlight face of the silicon substrate; printing electrode slurry on a silk screen; and sintering to obtain a metal electrode so as to finish the manufacturing of a battery cell. The production process disclosed by the invention is ingenious in concept, is compatible with a conventional industrial battery production line and is easy for industrial manufacture; compared with the conventional solar battery, an electrode grid line is not arranged on the light reflective face of the double-sided solar battery so as to prevent the electrode grid line of the light reflective face from shielding sunlight; the backlight face is provided with a light trapping structure and an antireflection film layer so that the backlight face of the battery also can absorb and utilize the sunlight; and the antireflection films of the light reflective face and the backlight face can passivate the solar battery, so as to be good for improving the efficiency of the battery.

The invention provides a method for preparing an oily electrothermal conversion ink. The method comprises: crushing expanded graphite to obtain crushed expanded graphite; pre-mixing the crushed expanded graphite, an electric conduction filler, a resin, an auxiliary agent and a solvent to obtain a premix; adding a solvent to the premix, and stirring to obtain a uniform and foam-free ink precursor dispersion liquid; and peeling the ink precursor dispersion liquid to obtain the oily electrothermal conversion ink, wherein the mass percentages of the resin, the solvent and the auxiliary agent respectively are 10-40%, 35-80% and 0.3-4%. According to the present invention, the prepared oily electrothermal conversion ink has good adaptability to printing processes, and further has high electrothermal film uniformity.

The invention belongs to the field of material chemical synthesis, and discloses fluorine-containing alkenyl polysiloxane, a preparation method thereof and an application. The preparation method for the fluorine-containing alkenyl polysiloxane mainly comprises the following steps: (1) under the action of a solvent and a catalyst, enabling alkenyl siloxane units M1, D1 and T1 to react with a nucleophilic reagent of a fluorine-containing chain segment R3X, and purifying the obtained reaction liquor after the reaction is ended, thereby obtaining fluorine-containing alkenyl polysiloxane M, D and T; and (2) enabling at least one of D and T and at least one of D1, T1 and Q to generate hydrolytic condensation reaction under the action of the catalyst, adding M or M1 to generate end capping reaction after the reaction is ended, and purifying the reaction product to obtain the fluorine-containing alkenyl polysiloxane with a line-type or a body-type structure. The fluorine-containing alkenyl polysiloxane is added, so that a solvent-free organic polysiloxane composite forms a surface with lower surface energy, and therefore, a fluoride-containing siloxane anti-adhesion coating with lower release force is obtained.

The invention relates to a process for preparing a selective emitter of a monocrystalline silicon solar cell with a corrosion slurry method. A utilized technology is designed based on a common cell plate production line, the original step of growing an antireflecting film by adopting PECVD (Plasma Enhanced Chemical Vapor Deposition) is advanced to the completion of primary diffusion, meanwhile, the printing step and the removing step of corrosion slurry and secondary diffusion of a phosphorus element are added. Silicon nitride is simultaneously utilized as a barrier layer of the secondary diffusion and the antireflecting film of a cell plate. In the invention, the silicon nitride is utilized as the barrier layer of the diffusion, and the step of growing the antireflecting film by adopting the PECVD is an indispensable procedure for producing the monocrystalline silicon cell plate, therefore no addition step is added. The silicon nitride barrier layer of a selective emitter region is broken by the corrosion slurry; compared with a general physical method, the process does not need a special device and high temperature; and compared with a general chemical method, the process is simple. After the process is utilized, the average conversion efficiency of the cell plates produced in batches by a company reaches 18.5%, which is far higher than the industrial average level and achieves world-leading levels.

The invention discloses a tensioning device for a screen printing machine. The technical scheme of the device is characterized by comprising a machine frame, a printing device and a drying device; themachine frame is further provided with a printing tensioning mechanism and a drying tensioning mechanism; the printing tensioning mechanism comprises a tensioning roller and a tensioning motor, wherein the tensioning roller is used for allowing a strip-shaped material to be wound therearound, and an output end of the tensioning motor is provided with a magnetic powder clutch used for driving thetensioning roller to maintain the constant tension of the strip-shaped material; and the drying tensioning mechanism comprises a gravity tensioning frame capable of tensioning the strip-shaped material wound around the tensioning roller under the action of gravity, wherein the gravity tensioning frame is located at a feeding end of the drying device, one end of the gravity tensioning frame is rotationally connected to the machine frame, the other end of the gravity tensioning frame is provided with a gravity roller, and the gravity tensioning frame can maintain the strip-shaped material woundaround the tensioning roller in a tensioned state through the gravity roller under the action of gravity in the process of axially rotating around the machine frame. The tensioning device can keep thestrip-shaped material automatically tensioned, so that the printing effect and the drying effect of the strip-shaped material are improved.

The invention belongs to the technical field of printing press equipment, and particularly relates to an anti-counterfeiting printing press which includes a feed roller, a discharge roller, a work table, a printing unit and a heating unit. The printing unit includes a rolling wheel, a printing wheel and a drying wheel; the heating unit includes a motor, a cam, a hinge plate, a heating block and anejector rod; the ejector rod is slidably connected in a through hole, the bottom end of the ejector rod is slidably connected in a second slide groove, and the top end of the ejector rod is in contact with the heating block; the anti-counterfeiting printing of packaging paper is realized by the cooperation of the feed roller, the discharge roller, the work table, the printing unit and the heatingunit; and the situation of shrinking and curling of the packaging paper due to a large temperature difference of the packaging paper in the process of direct contact with the drying wheel is avoided,the printing processing quality of the packaging paper is ensured, and therefore the packaging paper can still ensure a relatively flat surface after printing processing.

The invention relates to a single-color spraying and printing dual-purpose machine for terrace printing and a work method thereof. The machine is characterized in that the single-color spraying and printing dual-purpose machine for terrace printing comprises a walking frame and a containing hopper arranged on the walking frame; a storage pond is arranged on the lower portion of the containing hopper, a material transferring roller is arranged in the storage pond, a transfer printing roller is arranged at the first end of the walking frame, a middle roller is arranged between the transfer printing roller and the material transferring roller, a walking wheel is arranged at the second end of the walking frame, and the walking wheel and the transfer printing roller serve as supporting wheels for advancing of the walking frame. The single-color spraying and printing dual-purpose machine for terrace printing is simple in structure and reasonable in design, and printing of the terrace surfacepattern can be improved.

The invention provides a silk screen printing technology for a high temperature co-fired ceramic. The silk screen printing technology can increase the printing and porefilling efficiency of the innerside walls of through holes. According to the technical scheme, the silk screen printing technology for the high temperature co-fired ceramic is characterized by comprising the following steps that 1,a green ceramic blank is placed on a table surface of a screen printer, and a first vacuum port of the table surface of the screen printer is aligned with through holes of the green ceramic blank; 2,a vacuum pumping device is turned on, a second vacuum port of the table surface is used for adsorbing the green ceramic blank, and the vacuum suction is transmitted to the through holes of the greenceramic blank through the first vacuum port; and 3, the green ceramic blank is subject to silk screen printing through the screen printer.