1792 results about "Printing ink" patented technology

The invention discloses a colorful acid and alkali resistant laser printing ink and a preparation method thereof. The printing ink is composed of the following components in parts by weight: 0 to 30 parts of butanone, 10 to 30 parts of isopropanol, 2 to 6 parts of curing agent, 10 to 15 parts of pigment, and 10 to 30 parts of glycidyl ether epoxy resin. The glycidyl ether epoxy resin is adopted to produce the printing ink, aliphatic polyamine is further chosen as the curing agent, the acid and alkali resistant performance of the printing ink is strengthened through optimizing the formula, thus the shortage that the colorful laser printing ink is lost when being mixed with acid and alkali is overcome, moreover, the color of the laser printing product is more abundant, and the patterns are more clear.

The invention provides a photosensitive resin composition containing an anthracene methyl modified melamine photosensitizer, a photosensitive dry film and application of the photosensitive dry film, the photosensitizer adopts a melamine skeleton to connect three anthracene 9-methyl structures, and through a rigid structure of the melamine skeleton and a methylene bridging (-CH2-An) design of an anthracene group, the photosensitive resin composition has the remarkable advantages that the methylene bridging structure can be used for preparing a photosensitizer, and the photosensitizer can be used as a photosensitizer for photosensitization of the anthracene methyl modified melamine photosensitizer. The breakage of carbon-oxygen bonds on alkoxy caused by p-pi conjugation is avoided, so that the migration of small molecular fragments after initiation is reduced, permeable crystallization to a polyethylene protective film is effectively inhibited, and the risk of short circuit of a line is remarkably reduced; the light quantum yield can be greatly improved by introducing a plurality of light sensing units; the melamine skeleton is used, so that the adhesive force of the initiation system on the metal foil surface can be effectively improved; in addition, the photosensitizer also shows excellent solubility and formula compatibility, and can be widely applied to the photocuring fields of dry films, paints, coatings, printing inks, molding materials and the like.

The invention is about a method of marking ink which is only used to defend fake. The composition of it is: lipidol or lipid, surface active agent, integration agent, water, buffering agent. Their mass percents are: 1,2-hexylene glycol: 5%-15%, butanol: 1-5%, DH-1: 5-10%, EDTA: 0.1-0.5%, MS-1: 0.1-1%, water: the rest. The process is: a. dissolving the colorant in water, b. put the correct percent of 1,2-hexylene glycol and butanol into the solvent, then dropping the MS-1 and EDTA solution when mixing the solvent for 30-50 min, c. put the rest precent of water into the printing ink box. The picture and word would be shown red fluorescence in the UV but blank in the usual light.

The invention provides anthracene methyl phenothiazine for a photosensitive resin composition, and relates to the field of photopolymerization. The invention further comprises a photosensitive resin composition containing the anthracene methyl phenothiazine, a photosensitive dry film containing the anthracene methyl phenothiazine and application of the photosensitive resin composition and the photosensitive dry film. The anthracene methyl phenothiazine disclosed by the invention has photosensitivity, can be used as a photosensitizer in the photosensitive resin composition, can improve the adhesive force of the photosensitive resin composition on various metal surfaces, and has the characteristic of low migration; the method can be widely applied to the photo-curing fields of dry films, paints, coatings, printing ink, forming materials and the like.

The invention discloses an alkali-washable aluminum foil etching gravure printing UV ink. The gravure UV ink comprises the following components in parts by weight: 30-50 parts of a UV prepolymer, 20-30 parts of a UV monomer, 6-20 parts of an initiator, 10-30 parts of an inorganic filler, 1-5 parts of a pigment, 0.1-3 parts of a dispersant, 0.1-2 parts of a leveling agent, 0.1-2 parts of a defoaming agent and 0.1-2 parts of an adhesion aid. According to the gravure UV etching protection ink, the special UV prepolymer and the UV monomer are matched with the filler, so that the prepared gravure UV etching protection ink not only has excellent aluminum foil adhesive force, but also has excellent corrosion resistance of hot hydrochloric acid, particularly provides effective protection for circuit edges, and meanwhile, the gravure UV etching protection ink can rapidly retreat a film in a sodium hydroxide aqueous solution with the concentration of 1% or above and the temperature of 40 DEG C, so that the service life of the gravure UV etching protection ink is prolonged. When the prepared gravure UV ink is used for gravure printing, diffusion of knife lines and printing lines cannot be generated, and possibility is brought to cost reduction and efficiency improvement of the industry.

The invention discloses a mineral oil defoaming agent for water-based paint ink and a preparation method of the mineral oil defoaming agent, and belongs to the technical field of defoaming agents. A hydroxyl-terminated butenyl polymer and hydrogen-containing silicone oil are used for preparing a modified butenyl polymer under the condition of a platinum catalyst; and preparing the mineral oil defoaming agent from the obtained modified butenyl polymer, mineral oil, white carbon black, fatty acid metal soap and wax under the action of an emulsifier. The mineral oil defoaming agent prepared by the invention not only has the advantage of high defoaming speed of a conventional mineral oil defoaming agent, but also has improved compatibility and stability, is a defoaming agent with strong defoaming ability, good foam inhibition performance, good compatibility with paint and ink and reduced coating shrinkage phenomenon, and has good application prospects in the fields of paint and ink. The method has a wide application prospect especially in the field of home decoration water-based paint ink.

The invention discloses a selective ink transfer printing method based on a liquid-like surface. The selective ink transfer printing method comprises the following steps that 1, the surface of a base body is treated through oxygen plasma; step 2, dissolving a reaction monomer in methylbenzene containing saturated water; step 3, placing the substrate subjected to oxygen plasma treatment in the reaction solution in the step 2 to form a PDMS molecular brush; step 4, performing pattern design on the surface of the PDMS molecular brush by adopting a mask process, treating by using an alkali solution, selectively removing the molecular brush in an unprotected area, and restoring the molecular brush to a hydrophilic glass surface; step 5, coating oil-based ink on the surface treated in the step 4 to form a clear pattern; and step 6, enabling the surface of the printing ink with the pattern to be in direct contact with a target substrate, and applying pressure to transfer the printing ink. According to the method, the problems of resolution, ink diffusion control and pattern uniformity of the existing printing technology are solved, and the printing precision and applicability are improved.

The invention relates to 3D printing silk fibroin-based conductive hydrogel as well as a preparation method and application thereof, and belongs to the technical field of hydrogel. The preparation method comprises the following steps: S1, adding silk fibroin, a graphene oxide dispersion liquid and glycidyl methacrylate into a lithium bromide solution for reaction, and performing dialysis, centrifugation and freeze drying to obtain modified silk fibroin; s2, dissolving the modified silk fibroin, polyethylene glycol diacrylate and a photoinitiator in water, and centrifuging and defoaming to obtain bio-ink; s3, preparing the bio-ink into the 3D printing silk fibroin-based conductive hydrogel through a DLP 3D printing technology. Methacrylic acid silk fibroin is used as a base material, polyethylene glycol diacrylate is used as a reinforcing material, and graphene oxide is introduced to construct the photocuring printing ink. In addition, the silk fibroin-based conductive hydrogel with excellent performance can be prepared by combining the structural design of multilevel porous and triple-period extremely small curved surfaces.

The present invention discloses a gas infrared radiation and hot air dual-mode drying furnace for drying printing inks, which comprises a furnace body housing. Inside the furnace body housing, there are a heating chamber and two machine position chambers. The two machine position chambers are symmetrically distributed at the top and bottom of the heating chamber. An inlet and an outlet penetrating through the furnace body housing are respectively arranged on both sides of the middle of the heating chamber. The present invention heats printing paper through two modes of gas infrared radiation and hot air. Due to the physical properties that infrared rays can penetrate and objects can actively absorb the heat of infrared rays, the ink and the interior of the paper can be quickly heated. In the later stage, the high-temperature flue gas waste gas generated by the front-end gas infrared radiation burner is used, and is guided to the air knife for drying through the hot air circulation mode by a blower and a forced air blower. The gas consumption of the burner is lower, and the heating speed is faster, further reducing the gas energy consumption. Under the condition of the same gas consumption, the speed of the printing press is significantly increased, meeting the requirement of lower gas energy consumption of existing conventional gas burners.

The invention discloses high-adhesiveness water-based printing ink and a preparation method thereof, and belongs to the technical field of printing, and the high-adhesiveness water-based printing ink comprises the following components: water-based acrylic resin, SiO2 (at) TiO2 (at) EPS composite filler, pigment, a dynamic covalent cross-linking agent, nano cellulose, a wetting dispersant, a defoaming agent and deionized water. The preparation method comprises the following steps: firstly, preparing an EPS terpolymer containing a multi-functional group, and then modifying a SiO2 / TiO2 preassembly to prepare a composite filler; meanwhile, a dynamic covalent cross-linking agent generated by the reaction of furan methacrylate and maleimide propyl triethoxy silane is prepared; and finally, mixing the components step by step to obtain the ink. The multi-stage structure of the composite filler enhances the interface effect and covering power, the dynamic covalent cross-linking agent forms a reversible network to improve the stability and the self-repairing property, and the nano cellulose and other components have the synergistic effect, so that the ink has good adhesiveness and stability.

The invention discloses an anti-counterfeiting code printing method of variable temperature-sensitive ink, and belongs to the technical field of printing anti-counterfeiting. The invention provides a dynamic data and temperature response collaborative anti-counterfeiting scheme to solve the problems that an existing anti-counterfeiting code is easy to copy in a static state, and temperature-sensitive ink is single in function and fuzzy in superimposed information. The method comprises the following steps: generating unique dynamic data through an encryption algorithm and dividing the unique dynamic data into a plain code segment and a hidden code segment; configuring double-layer temperature-sensitive printing ink and a low-temperature layer, partially covering the plain code section, and enabling the high-temperature layer to be transparent at normal temperature and to be heated to develop hidden codes; a multi-channel high-precision printing device is adopted to superpose ink layers step by step, and a protective film is covered after ultraviolet curing to enhance durability. A user triggers hierarchical display and hiding through temperature, and dynamic data and physical characteristic dual verification is realized by combining a terminal verification system. The anti-counterfeiting information capacity is expanded, the problem of information blurring caused by ink diffusion is solved, high-security scenes such as packages, labels and certificates are compatible, and the anti-counterfeiting strength and the practical value are achieved.

The utility model provides a roller printing ink adjusting mechanism which comprises a printing roller rotationally connected to a rack, and an ink distributing mechanism is arranged in the printing roller and used for distributing ink to the printing roller. The ink distributing mechanism comprises a mounting support, an ink distributing roller, an ink roller and a distance adjusting assembly, the mounting support is connected to the rack, the ink distributing roller and the ink roller are rotationally connected to the mounting support and are arranged in parallel, and an ink storage groove for containing ink is formed between the ink distributing roller and the ink roller; the distance adjusting assembly is connected to the mounting support and used for adjusting the distance between the ink distributing roller and the ink roller, and then the ink outlet amount is adjusted. The distance adjusting assembly is arranged on the installation support, the distance between the ink distributing roller and the ink roller can be properly adjusted according to the specific environment temperature, and therefore the ink distributing device can adapt to the viscosity of ink in different environments, and it is guaranteed that the ink outlet amount is stable.

The invention discloses a powder coating imitation copper wire drawing coating based on a gradient composite structure and a preparation method of the powder coating imitation copper wire drawing coating, and relates to the technical field of novel printing ink. The invention relates to a gradient composite structure-based powder coating copper-wire-drawing-imitating coating, which is characterized by comprising a bottom layer, a middle layer and a surface layer, wherein the bottom layer is an epoxy resin-based powder coating layer containing nano silicon dioxide; the middle layer is a copper-imitating ink wiredrawing layer containing micro-nano copper powder in directional arrangement; the surface layer is a water-based gloss oil layer containing a self-repairing flatting agent; wherein the bottom layer is formed by electrostatic spraying. Through the gradient composite structure design of the bottom layer, the middle layer and the surface layer, the coating provided by the invention shows remarkable advantages in the aspects of hardness (4H), salt fog resistance (more than 1000 hours), self-repairing property and the like, and overcomes the limitation that the traditional coating is insufficient in adhesive force and hard to consider both hardness and wear resistance.

The invention discloses nano UV light-cured printing ink and a preparation method thereof, and relates to the technical field of printing ink preparation. The nano UV light-cured printing ink is prepared from nano UV light, the invention discloses a UV (ultraviolet) photoinitiator, which is prepared from the following raw materials in parts by weight: 20 to 40 parts of polyurethane acrylate oligomer, 15 to 30 parts of modified bisphenol A type epoxy acrylate, 10 to 15 parts of tripropylene glycol diacrylate, 5 to 10 parts of ethoxylated trimethylolpropane triacrylate, 5 to 15 parts of modified nano titanium dioxide, 3 to 8 parts of nano silver wire, 2 to 5 parts of photoinitiator 1173 and 1 to 3 parts of benzoin dimethyl ether. The invention relates to a silver-loaded zirconium phosphate composite material which is prepared from the following components in parts by weight: 0.5-2 parts of polyether modified polydimethylsiloxane, 0.3-1 part of a defoaming agent, 1-3 parts of a dispersing agent, 1-5 parts of silver-loaded zirconium phosphate, 0.5-2 parts of an antioxidant 1010, 0.5-2 parts of a coupling agent KH-550 and 10-25 parts of propylene glycol methyl ether acetate. The raw materials are scientifically proportioned and contain various modified components, and parameters of each step are clear. The preparation method is reasonable in process, the performance of the ink is improved through multi-step modification, and the obtained ink is good in dispersity and compatibility, high in curing efficiency and excellent in comprehensive performance and has good practicability and innovativeness.

The invention relates to rosin modified resin and a preparation process thereof and low-odor printing ink, the rosin modified resin is prepared from maleic anhydride, sulfonate alkyd resin, rosin and a metal organic framework, and the sulfonate alkyd resin is prepared from neopentyl glycol, dibutyltin dilaurate, m-phthalic acid-5-sodium sulfonate, phthalic anhydride and pentaerythritol. The printing ink has the effect of improving the strength and smell of the printing ink.

The invention discloses high-stability gravure ink and a preparation device thereof, and belongs to the technical field of printing materials, and the ink is prepared from polyurethane acrylate hybrid resin, phthalocyanine blue pigment, nano-zinc oxide dispersion, environment-friendly ester solvent, isopropanol and a plurality of auxiliaries according to a specific weight part ratio. The anti-settling property, the leveling property and the storage stability are excellent. The preparation device comprises an intelligent batching unit, a multi-stage efficient mixing and dispersing unit, a vacuum defoaming and curing unit and an online filtering and filling unit which are sequentially arranged in the material flow direction, and is integrally controlled by a central intelligent control system. According to the device, through the unique coaxial different-direction stirring assembly, ultrasonic-assisted dispersion and full-process automatic control, efficient, uniform and continuous production of printing ink is achieved, and the consistency of product quality and production efficiency are remarkably improved. The problems that traditional gravure ink is poor in stability, the production process is dispersed, and the traditional gravure ink depends on manpower are effectively solved.

The disclosure relates to a method for printing a paper by a digital printing system which has a plurality of ink application units for applying printing ink of different colours to the paper. The paper to be printed is guided past the ink application units in a feed direction. The digital printing system has a device which is designed and suitable for preventing or reducing the formation of condensation on the ink application units, and this device is used to prevent or reduce the formation of condensation on the ink application units. The device has a temperature-control device and an electrical controller, wherein the temperature-control device is designed to influence a temperature of the ink application units, and the electrical controller is designed to control the temperature-control device in such a way that the ink application units have different temperatures. The temperatures of the ink application units increase in the feed direction and temperatures of two adjacent ink application units differ by at least 0.5° C. and by at most 1.5° C. The temperatures of the first ink application unit in the feed direction and of the last ink application unit in the feed direction differ by at most 10° C.

This application relates to the technical field of chip printing inks. More specifically, it relates to a high-temperature resistant ink for chip screen printing and a preparation method thereof. The high-temperature resistant ink for chip screen printing is prepared from the following raw materials in parts by weight: 50-60 parts of silicone resin, 10-20 parts of epoxy resin, 2-6 parts of curing agent, 2-8 parts of auxiliary agent, 40-60 parts of solvent, and 0-5 parts of pigment. The high-temperature resistant ink for chip screen printing prepared by using the above raw materials has good high-temperature resistance and adhesion performance. During the use of the chip, the ink is not easy to change color or fall off.

The invention discloses a tank body printing ink curing method. The method comprises the following steps that S1, a printing tank body is fixed; s2, rotating the printing tank body; s3, ink spraying: ink is sprayed through a color spray head and a gloss oil spray head which are arranged at the bottom of the printing trolley, and the ink is sprayed on the surface of the printing tank body; s4, ink curing irradiation is conducted, specifically, irradiation is controlled by a curing lamp set in a partitioned mode, and the jet printing ink on the surface of the printing tank is subjected to irradiation curing; s5, curing of the ink in the printing tank is completed, the printing trolley moves in the bus direction of the printing tank, the other surfaces of the printing tank are sprayed with the ink, the printing tank rotates, and the ink sprayed on the surfaces of the curing lamp sets is irradiated and cured until the printing ink on the surfaces of the printing tank is completely cured; according to the method, the gloss oil is sprayed by the gloss oil spray head through the partitioned irradiation of the curing lamp set, and compared with the existing integrated control irradiation of curing lamp beads, the method realizes the gloss oil curing brightness of the surface of the tank body through the partitioned irradiation design of the curing lamp set.

The invention discloses a bio-based low-VOC (volatile organic compound) water-based ink composition based on microbial fermentation PHA (polyhydroxyalkanoate) as well as a preparation method, application and a printing method thereof, and belongs to the technical field of printing ink and water-based polymer dispersion. The ink adopts a unique protective colloid-free PHA latex system, and is supplemented with precise crosslinking equivalent regulation and control. Compared with the conventional bio-based water-based ink which can be applied to a plastic film only by depending on prime coat or high-energy-consumption drying in the market, the bio-based water-based ink disclosed by the invention can realize excellent adhesion (0-1 level) and wet rubbing resistance on base materials such as BOPP / BOPET and the like without prime coat, and the printing process is greatly simplified. Under the condition that the environment-friendly high standard of low VOC and no PFAS is ensured, the high-speed printing energy consumption is remarkably reduced with lower drying enthalpy, the back sticking pain point is solved, meanwhile, the long working life and the excellent paper-based ink removal property are achieved, and the industrial problem that environment-friendly compliance and high-performance printing are difficult to achieve at the same time is effectively solved.

The invention relates to the field of printing inks and discloses a wear-resistant and scratch-resistant printing ink, a preparation method thereof, and an application thereof. The printing ink comprises: a modified aqueous polyurethane emulsion, a modified mica sheet, a pigment, an additive, and deionized water; the modified aqueous polyurethane emulsion is prepared by introducing a double-terminal hydroxyl chain extender into a polymer; the double-terminal hydroxyl chain extender is reacted with a Schiff base intermediate obtained by reacting salicylaldehyde and p-aminobenzyl alcohol and isocyanoethyl methacrylate, and the obtained double-bonded Schiff base intermediate is reacted with 1,1,3,3-tetramethyldisiloxane to prepare the ink; the modified mica sheet is reacted with triethylenetetramine, formaldehyde, and acetone, and then formaldehyde is added under alkaline conditions for polycondensation, the obtained cationic polymer and glutaraldehyde are prepared into the cationic mica sheet, and finally polyaniline is grown on the surface of the mica sheet through interfacial polymerization. The ink prepared by the invention has good adhesion, high hardness, and excellent water resistance, wear resistance, heat resistance, antistatic properties, and antibacterial properties.

The invention discloses a method for preparing a cordyceps culture medium by taking polygonatum kingianum as a culture medium, and relates to the technical field of culture medium preparation. The method comprises the following steps: performing enzymolysis treatment on a polygonatum kingianum raw material to obtain enzymatic hydrolysate rich in micromolecular nutrition; active components of polygonatum kingianum are extracted to prepare microcapsules with response release characteristics; preparing at least two kinds of 3D biological printing ink by utilizing the enzymatic hydrolysate and a component containing the microcapsule and a polygonatum kingianum material which is not subjected to enzymolysis; the ink is constructed into a three-dimensional culture medium with a layered or gradient structure layer by layer through a 3D printing technology and is solidified, the culture medium prepared by the method can realize gradient distribution of nutrients and programmed release of active ingredients, and an optimized microenvironment is provided for growth of cordyceps sinensis, so that the culture efficiency, yield and quality of cordyceps sinensis are effectively improved.

The invention relates to the technical field of ink-jet printing, and discloses reactive dye ink-jet printing ink based on ionic association regulation and a printing method of the reactive dye ink-jet printing ink. According to the method, on the basis of a cationic compound with the relative molecular weight of 50-1000 in an ink system, the aggregate structure of the anionic surfactant is accurately induced to be controllably converted from a spherical structure to a wormlike or layered structure by virtue of the action of ionic bonds; under the action of not additionally adding a viscosity modifier, the rheological property and dynamic surface tension of reactive dye ink are accurately regulated and controlled, and the dynamic surface tension response rate is remarkably improved, so that the uniformity and stability of the morphology of ink droplets in inkjet printing are improved, the dynamic wetting behavior in the collision process of the ink droplets and a base material is effectively improved, and the printing quality is improved. And high-precision ink-jet printing of the reactive dye ink on the textile fabric is realized.

The invention relates to a preparation method of environment-friendly multifunctional printing ink based on excimer UV curing, and belongs to the field of printing ink preparation. The preparation method comprises the following steps: compounding a hydroxyl-containing aliphatic polyurethane acrylate prepolymer and a carboxyl-containing epoxy acrylate oligomer according to a specific ratio; and adding a compound photoinitiator, a modified nano silicon dioxide filler and other components, and carrying out secondary sanding, vacuum defoaming and other processes to obtain the ink. According to the method, the adhesive force of a base material is improved through a hydroxyl-carboxyl synergistic effect, the wear resistance and hardness of a film layer are enhanced through nanofiller modification and a gradient grinding process, and efficient curing under 172nm excimer ultraviolet light is realized by compounding a photoinitiator. The curing time of the prepared ink is less than or equal to 1.5 seconds (the film thickness is 10 microns), the pencil hardness is more than or equal to 3H, the acetone wiping resistance is more than or equal to 50 times, the solid content is 65-75%, no VOC (Volatile Organic Compounds) is discharged, the problems that the traditional UV ink is slow in curing and unbalanced in performance are solved, and the ink is suitable for the fields of high-speed printing, high-end packaging, electronic circuits and the like.

The invention relates to the technical field of fishing rod cleaning, and discloses a fishing rod surface cleaning device and a printing ink cleaning method for fishing rod processing.The fishing rod surface cleaning device comprises a cleaning box body, a clamping conveying mechanism is arranged in the cleaning box body, and the clamping conveying mechanism comprises a rotating roller rotationally connected to the inner wall of the cleaning box body; the rotating rollers are sleeved with a conveying belt. By driving the discharging rotating roller in the storage box to rotate and through the clamping groove formed in the discharging rotating roller in a surrounding mode, fishing rods falling into the clamping groove can be driven to intermittently rotate along the inner wall of the storage box, continuous pressure during discharging can be reduced through intermittent rotation, excessive accumulation or blockage of materials is avoided, and it is guaranteed that discharging is smooth; the fishing rod is driven by the clamping assembly to enter the cleaning water tank to be cleaned, so that the fishing rod is automatically fed and discharged in the cleaning process, feeding, discharging and cleaning tasks are rapidly completed, it can be ensured that the fishing rod rotates or moves at a stable rhythm and angle in the cleaning process, and therefore the more uniform cleaning effect is achieved.

The invention discloses a paper product printing ink quantity intelligent control method based on artificial intelligence. The method comprises the steps that firstly, paper face visual image data and a structured working condition parameter sequence are collected; 2, preprocessing is carried out, and a visual feature tensor and a structured parameter tensor are generated; 3, carrying out the combined feature extraction and fusion modeling of the visual feature tensor and the structured parameter tensor through an improved MobileViT network; 4, frequency domain enhancement and predictive reasoning are executed through the improved TabPFN predictive model, and an ink quantity predictive value and an ink quantity adjustment amplitude are generated; 5, an ink supply control instruction optimization objective function is constructed, and an optimal ink supply control instruction is generated; 6, executing ink quantity adjustment based on the optimal ink supply control instruction; and step 7, collecting feedback data after the ink amount is adjusted, and performing incremental updating on the improved TabPFN prediction model. The precision and the multi-working-condition self-adaptive capacity of paper product printing ink quantity regulation and control are improved.

The invention provides a flexible temperature sensor based on aerosol jet printing and a preparation method and application thereof, and belongs to the technical field of novel materials. The preparation method of the flexible temperature sensor comprises the following steps: (1) mixing polyimide with N, N-dimethylformamide to obtain a PI solution; coating paper with the PI solution, and drying to obtain a PI / paper-based composite material substrate; (2) preparing graphene and deionized water into a solution, and adding a dispersing agent to obtain conductive printing ink; and (3) taking the PI / paper-based composite material as a substrate, printing conductive printing ink on the PI / paper-based composite material substrate through aerosol jet printing, and drying to obtain the flexible temperature sensor. The flexible temperature sensor provided by the invention is mainly used for monitoring the internal temperature of a heat-sensitive food package. Through the improvement and innovation of materials and processes, the overall performance (such as stability, accurate monitoring performance, good bending adaptability, quick response and the like) and environmental protection performance of the sensor are improved, so that the sensor can be used for monitoring the internal temperature of a heat-sensitive food package.

The present invention provides a method for electroplating gold on the surface of a circuit board. The method comprises the following steps: (1) first printing ink on the surface of the circuit board to form an ink layer; (2) slotting the ink layer to form grooves; (3) second printing a conductive silver paste in the grooves and curing the paste, then grinding the circuit board to remove the ink; and (4) electroplating the circuit board after the ink is removed with gold, and then removing the conductive silver paste. The method can effectively solve problems such as residual conductive wires or gaps in the gold plating pattern that occur during the gold plating process for drawing conductive wires, and does not require etching, thereby reducing costs and improving efficiency.

The utility model provides an ink supply system for cell coating printing. The battery cell coating printing ink supply system comprises a first ink barrel and a stirring device, the stirring device comprises a first ink barrel cover which ascends and descends relative to the first ink barrel through a lifting mechanism and a first stirring mechanism which ascends and descends together with the first ink barrel cover, one end of the first stirring mechanism is installed on the first ink barrel cover, and the other end of the first stirring mechanism extends into the first ink barrel. The first ink barrel cover is provided with a first ink suction pipe extending into the first ink barrel. The stirring mechanism is additionally arranged, ink in the ink barrel can be effectively stirred, the phenomenon that the color of the ink becomes light due to deposition is avoided, electric stirring is achieved, and the labor intensity of manual stirring is reduced.

The invention belongs to the technical field of solar photovoltaics, and provides novel efficient light conversion photovoltaic glass and a preparation method thereof.The preparation method comprises the steps that glass colored glaze ink corresponding to the novel efficient light conversion photovoltaic glass is prepared, and glass powder, a light conversion material, pearl powder, light diffusion particles and an organic carrier are mixed; the content of the light conversion material is more than 5% and less than 30%; the particle size of the pearl powder is larger than 5 microns and smaller than 20 microns, and the content is larger than 1% and smaller than 10%; the content of the light diffusion particles is greater than 0.1% and less than 5%; printing the prepared glass colored glaze ink on the surface of the front plate glass layer; carrying out toughening treatment on the front plate glass layer printed with the glass colored glaze printing ink, and sintering the glass colored glaze printing ink to form a glass colored glaze layer; the battery piece is bonded to the front plate glass layer with the glass colored glaze layer through the upper adhesive film layer, the back plate glass layer is bonded to the battery piece through the lower polymer adhesive film layer, and preparation of the novel efficient light conversion photovoltaic glass is completed.