2582 results about "Film coating" patented technology

The invention discloses a polyhydroxyalkanoate water-based barrier coating composition and application, and belongs to the technical field of packaging materials. The composition takes water as a dispersion medium and comprises polyhydroxyalkanoate, a plasticizer, an emulsifier and an inorganic nano filler. The stable emulsion with the volume average particle size of 400-700nm is prepared under specific proportioning and process conditions. After the emulsion is applied to a paper substrate according to the dry film coating weight of 10-12 g / m, the obtained coating shows good comprehensive performance: the oxygen permeability is not higher than 580 cm / m.d, the water vapor permeability is not higher than 290 g / m.d, and the heat sealing strength at 130 DEG C is not lower than 5.0 N / 15 mm. The biodegradable paper-based packaging film does not contain fluorine compounds, can be completely biodegraded, and provides a technical path for sustainable paper-based packaging.

The invention belongs to the technical field, and discloses a film coating processing technology simulation and optimization system based on digital twinning. The system is composed of a data acquisition module, a feature recognition and analysis module, a behavioral digital twinborn simulation module, a coating uniformity evaluation module, a process parameter optimization module and a coating distribution prediction module. The method comprises the following steps: acquiring a three-dimensional roughness digital model of a base material, accurately identifying a micron-sized local rough region and extracting geometrical characteristic parameters of the micron-sized local rough region; constructing a coating growth behavior digital twinborn model based on the geometrical characteristic parameters and the process parameters, and accurately simulating the coating growth process of the local rough area; and establishing a global coating uniformity quantitative evaluation system, and optimizing a process parameter combination by applying machine learning and a genetic algorithm. The system breaks through the limitation of traditional static shadow hypothesis, real-time tracking and accurate simulation of microstructure evolution in the deposition process are achieved, and the coating growth prediction accuracy is remarkably improved.

The invention discloses a photovoltaic POSS (polyhedral oligomeric silsesquioxane)-containing antireflection film coating liquid and a preparation method thereof, the coating liquid comprises the following raw materials in parts by weight: 80-100 parts of modified emulsion, 10-15 parts of modified graphene, 3-5 parts of sodium dodecyl benzene sulfonate, 1-3 parts of triethylene tetramine and 40-60 parts of deionized water, a modified additive in the coating liquid contains a polyhedral oligomeric silsesquioxane structure, the polyhedral oligomeric silsesquioxane structure can form uniformly-distributed nanopores and is matched with a two-dimensional honeycomb lattice structure in the graphene oxide, the surface roughness can be increased, the microstructure can scatter incident light and reduce specular reflection, so that the surface light transmittance is improved, and meanwhile, the modified additive molecule contains a fluoroalkyl structure, so that the surface light transmittance is improved. The fluoroalkane has a high refractive index, so that light reflection can be reduced, and the light transmittance is further improved.

The invention discloses a coating production line control method, device and equipment, a storage medium and a program product, and relates to the field of production scheduling, and the coating production line control method comprises the steps: monitoring production environment parameters and equipment operation parameters of coating production line equipment; parameter adjustment is carried out according to the production environment parameters and the equipment operation parameters through a pre-trained deep reinforcement learning model, the equipment parameter adjustment amount is obtained, and the pre-trained deep reinforcement learning model is obtained by carrying out model training on a preset initial deep reinforcement learning model based on historical coating production data obtained in advance; and adjusting the equipment operation parameters of the coating production line equipment according to the equipment parameter adjustment amount, and controlling the coating production line equipment subjected to parameter adjustment to perform coating production. The production line equipment parameters are dynamically adjusted through the deep reinforcement learning model, the problem that the film coating production quality is affected by film coating production line equipment parameter immobilization in the prior art is solved, and the film coating production quality is guaranteed.

The invention discloses a postharvest mango preservation method based on chitosan, citric acid and electron beam irradiation, and the method specifically comprises the following steps: dissolving chitosan with the deacetylation degree of more than or equal to 85% in a 0.7-0.8% citric acid solution, and adjusting the pH value to 4.4-4.6 to prepare a film coating solution; the method comprises the following steps: dipping mangoes, drying to form a continuous coating film, packaging, carrying out 380-440Gy double-sided irradiation treatment, and finally storing in a storage environment with the temperature of 11 + / -1 DEG C and the humidity of 85 + / -5%. According to the method, through synergistic antibiosis of chitosan and citric acid, low-dose irradiation precise sterilization and low-temperature microenvironment regulation and control, the rotting rate and browning degree of the harvested mangoes are effectively reduced, the storage period is prolonged, the fruit hardness, vitamin C and other nutritional ingredients are maintained, and the method is suitable for large-scale postharvest preservation and long-distance storage and transportation of the mangoes.

The invention discloses a coating device, a coating uniformity correction method and an optical device. The coating device comprises a coating workpiece disc, a first rotating mechanism, a coating source and a target coating correction plate, the first rotating mechanism is used for driving the coating workpiece disc to rotate; the film coating workpiece disc comprises a film coating surface facing one side of the film coating source; the plurality of substrates are positioned on the coating film surface; the target coating correction plate is positioned between the coating source and the coating workpiece disc; the target coating correction plate comprises a plurality of shielding parts, and the shielding parts are symmetrical about the central axis of the target coating correction plate; the coating source is used for gasifying the coating material, and the target coating correction plate prevents part of the coating material from being deposited on the surface of the substrate. By adopting the technical means, a uniform and compact dielectric film with an approximately rectangular effective area can be plated on the substrate, the film plating uniformity of the substrate is ensured, the product performance is further improved, and the film plating efficiency is high.

The invention discloses a crystal resonator sputter coating device and a preparation method of a crystal resonator, and belongs to the field of electronic components, the crystal resonator sputter coating device comprises a bottom plate, a lower electrode mask plate, a positioning plate, an upper electrode mask plate and a magnetic cover plate in sequence, the positioning plate is provided with a wafer positioning groove, a wafer is installed in the wafer positioning groove, and the magnetic cover plate is provided with a magnet. The upper electrode mask plate and the lower electrode mask plate are both provided with electrode holes, the thickness of the positioning plate is recorded as h < definite >, and one surface of at least one of the upper electrode mask plate and the lower electrode mask plate, which faces a wafer, is provided with a diffusion prevention bulge for preventing diffusion of electrode particles during film coating, and the thickness of the diffusion prevention bulge is recorded as h < definite >. The size of the dispersion preventing protrusion is matched with the size of the wafer positioning groove, the dispersion preventing protrusion is located in the wafer positioning groove during assembly, the thickness of the wafer is recorded as h wafer, and h wafer lt is smaller than or equal to 0.017 mm; and h, setting. The sputtering coating device solves the problem of electrode diffusion of the high-frequency crystal resonator in the existing sputtering coating device for the crystal resonator due to too small wafer thickness.

The utility model relates to the field of mattress production equipment, in particular to a mattress packaging line which comprises a film covering mechanism, a folding mechanism, a rolling and pressing mechanism and a stacking mechanism which are sequentially arranged, the stacking mechanism comprises a V-shaped material supporting frame, a lifting assembly and a translation assembly, a material pushing plate is arranged in the V-shaped material supporting frame, and a material stacking frame is arranged on one side of the V-shaped material supporting frame. The translation assembly is fixed to the top of the lifting assembly, the outer side of a mattress is coated with an adhesive film through the film coating mechanism, the mattress is folded in half through the folding mechanism, the mattress is rolled and pressed into a columnar long roll through the rolling and pressing mechanism, and finally the rolled mattress is blanked and falls onto the V-shaped material supporting frame, so that the rolled mattress is prevented from rolling, the production reliability is improved, and the production efficiency is improved. The roll-shaped mattresses are pushed into the material stacking frame through the material pushing plate, the V-shaped material supporting frame is driven to horizontally move through the translation assembly, the V-shaped material supporting frame is driven to ascend and descend through the lifting assembly, stacking of the roll-shaped mattresses at different horizontal positions and different heights is achieved, the automation degree is high, and the production efficiency is improved.

The invention relates to the technical field of rust-proof treatment of metal products, in particular to a rust-proof discoloration-proof packaging system and method for a bronze-plated tire bead wire. The system sequentially comprises a cleaning unit, a surface treatment unit, a drying box, a film coating device, a cooling unit, a post-treatment unit, a take-up device and a packaging system according to the process. The core of the process method is as follows: the steel wire is immediately coated with a special antirust film coating agent to be cured by using waste heat generated after the steel wire is dried, and the film coating agent comprises water-based resin, a silane coupling agent, a conductive polymer, a nano filler and benzotriazole; during packaging, an intelligent packaging system with a built-in humidity response humidity control bag is adopted, and the humidity control bag can automatically release inert gas and a moisture absorbent when the environment humidity reaches a preset threshold value. Multiple synergistic protection on the surface of the steel wire is achieved, the anti-rust period is remarkably prolonged to 12 months or above through dynamic humidity control, meanwhile, the bonding performance and the retention rate of the steel wire and rubber are improved, and energy conservation and environment protection are achieved.

The invention relates to a production system and a production method of a polyhydroxyalkanoate paper-plastic composite material. The production system comprises an unwinding mechanism, a coating device, a drying device, a pressing device, a winding mechanism and a post-processing device, wherein the unwinding mechanism is used for conveying base material paper; the coating device is used for coating the base material paper conveyed out by the unwinding mechanism and comprises an extrusion type coating machine head; the drying device is used for heating and drying the coated base material paper; the pressing device is used for pressing the dried base material paper; the winding mechanism is used for storing the laminated base material paper; and the post-processing device is used for performing post-processing on the laminated base material paper, and the post-processing device comprises an elastic roll mechanism and a drying box. According to the preparation method, an extrusion type coating process is adopted, extrusion granulation, high-temperature melt extrusion casting or film spraying forming of the polyhydroxyalkanoate is not needed, the degradation risk of the polyhydroxyalkanoate is avoided, degradation of the polyhydroxyalkanoate is reduced, and the production cost is reduced.

The invention belongs to the technical field of sandy soil reinforcement, and relates to a sandy soil reinforcement method combining modified chitosan film coating and cementation with biomimetic mineralization and application, the sandy soil reinforcement method comprises the following steps: S1, chitosan is subjected to swelling, alkalization, carboxymethylation and refining treatment to obtain modified chitosan; s2, respectively preparing a calcium chloride solution and a sodium carbonate solution with the same concentration; a calcium chloride solution is a cementing solution A; adding modified chitosan into a sodium carbonate solution, and uniformly stirring to form a cementing solution B; s3, the cementing liquid A is sprayed to the sandy soil, then the cementing liquid B is sprayed, and primary cementing is completed; carrying out circulating cementing for 5-20 times according to the spraying mode; and then air drying is conducted to complete sandy soil reinforcement. According to the invention, the agglomeration among calcium carbonate particles is enhanced by utilizing the cementing, film covering, mineralized crystal form adjusting and filling coupling effects of the modified chitosan, so that the calcium carbonate particles form effective cementing connection among sand particles, thereby improving the mechanical properties of the sand.

The invention relates to the field of positive electrode materials, in particular to a lithium manganese iron phosphate / carbon fiber composite positive electrode material and a preparation method thereof, which are used for solving the problems of poor electronic conductivity of lithium manganese iron phosphate and the like. The preparation method comprises the following steps: firstly, carrying out graft modification and ZrO2 film coating on carbon fibers, and then compounding the modified carbon fibers with lithium iron manganese phosphate to obtain the lithium iron manganese phosphate / carbon fiber composite positive electrode material. The lithium manganese iron phosphate / carbon fiber composite positive electrode material can greatly improve the electronic conductivity and improve the rate capability; active substance dissolution and side reaction can be inhibited, and the cycling stability is improved; a lithium ion diffusion channel can be optimized, and the ion conduction efficiency is improved; the electrode mechanical performance can be enhanced, and the structural reliability is improved. Meanwhile, the advantages of all the components are exerted, and finally the electrochemical performance and structural stability of the composite positive electrode are remarkably improved.

The invention provides a preparation process of an environment-friendly film coating, and belongs to the technical field of coatings, the preparation process comprises the following steps: S1, mixing 3-4 parts of epoxy resin, 25-28 parts of polyurethane emulsion, 35-38 parts of water-based acrylic resin emulsion, 0.5-1 part of a curing agent, 0.5-1 part of an accelerant, 2-2.5 parts of a dispersing agent, 0.3-0.5 part of a wetting agent and 6-8 parts of PVA emulsion to obtain a first mixture; s2, adding 4-5 parts of fluorine-doped hexagonal boron nitride and 10-12 parts of nano aluminum oxide into the first mixture, and stirring to obtain a second mixture; adding 2-3 parts of polyoxyethylene, 0.4-0.5 part of citric acid, 2-4 parts of a coalescing agent and 0.5-1 part of a defoaming agent into the second mixture, and stirring to obtain a coating; s3, performing plasma activation on the PET film to obtain a pretreated PET film; and S4, uniformly coating the pretreated PET film with the coating, and curing to obtain the environment-friendly film coating. The ink-jet adhesive force is improved, and meanwhile, the mechanical property of a PET film coated with a coating is improved.

The invention discloses pole piece processing equipment, and relates to the technical field of battery pole piece processing, and the pole piece processing equipment is characterized in that a conveying device conveys a pole piece material belt to pass through a cleaning position, a film covering position and a glue dispensing position in sequence; the laser assembly is arranged at the cleaning position and used for cleaning a pole piece material belt and forming a plurality of pole lug grooves, and each pole lug groove is provided with a dispensing forming area; the film covering device comprises a film supply assembly and an isolating film, the film supply assembly is arranged at the film covering position and used for providing the isolating film, the isolating film and the pole piece material belt move synchronously and are attached to the pole piece material belt, a plurality of through holes are formed in the isolating film, and the through holes are matched with the dispensing forming areas in a one-to-one correspondence mode; the glue dispensing mechanism is arranged at the glue dispensing position and used for spraying glue, the glue covers the glue dispensing forming area, at least part of the glue extends to the isolating membrane, and the glue is formed into a glue layer in the glue dispensing forming area. The pole piece processing equipment provided by the technical scheme of the invention can control the shape of the adhesive layer and improve the quality of the battery.

The invention relates to the technical field of pharmaceutical preparations, and provides a minoxidil film coating agent as well as a preparation method and application thereof. The minoxidil film coating agent provided by the invention comprises 40-60% of propylene glycol, 3-7% of polyvinyl alcohol, 20-30% of ethanol, 1-7% of minoxidil and the balance of water. According to the invention, propylene glycol is taken as a solvent, a plasticizer and a transdermal absorption enhancer, polyvinyl alcohol is taken as a film-forming material, and ethanol is taken as a volatile agent, after administration, ethanol is volatilized to promote film formation of polyvinyl alcohol, and propylene glycol enhances the plasticity of the formed film, so that the effect of reducing liquid medicine loss is achieved, the local medicine concentration is increased, and the bioavailability is improved. The minoxidil liniment disclosed by the invention has excellent skin permeability, can effectively convey a medicine to a required part, and can ensure that the medicine is released at a fixed position of the skin and is accurately administered in a medicine release process, so that the stimulation of liquid medicine flow to other parts is reduced, and a good treatment effect is achieved.

The invention discloses aluminum gusset plate surface film coating processing equipment, and aims to solve the problems that the surface temperature of a film coating roller needs to be set to be far higher than the activation temperature of a glue layer in the conventional equipment, so that the temperature control requirement on a heating element is relatively high, otherwise, a film is easy to shrink and deform to a certain extent under the action of high temperature. According to the technical scheme, the aluminum gusset plate surface film coating machining equipment is characterized by comprising a film coating roller, a matching roller and a driving part for driving the matching roller to rotate, a plate input platform is arranged at the front end of the film coating roller and the front end of the matching roller, and a plate input assembly is arranged on the plate input platform. According to the aluminum gusset plate surface film coating processing equipment, a film is preheated step by step through the preheating assembly, the temperature of the film is closer to the temperature needed by film coating when the film reaches the film coating position, the heating temperature of the film coating roller only needs to be controlled to be slightly higher than the activation temperature, and the heating temperature requirement of the film coating roller is lowered; and the problem that the film shrinks and deforms due to overhigh surface temperature of the film laminating roller is avoided.

The invention belongs to the field of advanced scientific devices integrating optics, quantum mechanics, atomic physics and a vacuum technology, and particularly relates to a glass vacuum cavity and a manufacturing method thereof.The manufacturing method includes the steps that the inner surfaces of window pieces are machined firstly, an inner working face with high surface shape precision can be obtained, and after the inner surfaces are machined, the four window pieces are plated with films, and the working faces are plated with antireflection films; the optical cement surface is plated with an optical cement auxiliary film, and the diffraction film is rubbed after the optical cement surface is plated with the film, so that the optical cement strength is ensured to be optimal. After every two of the four window sheets are subjected to optical cement deepening, the outer surfaces are processed, and when the outer surfaces are processed, the inner surfaces are protected, so that the quality of a film layer is not damaged. By means of the method that optical processing, film coating and optical cement deepening are conducted on the inner surface alternately, and then optical processing, film coating and optical cement deepening are conducted on the outer surface alternately, the glass vacuum cavity which is high in window piece surface shape precision, high in window piece parallel precision, high in combination strength and good in air tightness, and the film layer surface quality is not prone to pollution or damage can be machined.

The invention discloses a magnetron sputtering device for coating and a using method thereof.The magnetron sputtering device for coating comprises a sputtering chamber, a heating assembly and a cooling assembly, the sputtering chamber is used for coating a substrate, the magnetron sputtering device further comprises a bearing module and a conveying module, the bearing module is arranged in the sputtering chamber, and the conveying module is used for conveying the substrate to the substrate; the carrying module is used for carrying a substrate to be coated, and the conveying module is used for selectively driving one of the heating assembly and the cooling assembly to be far away from the carrying module and the other one of the heating assembly and the cooling assembly to be close to the carrying module so as to heat or cool the substrate. The conveying module drives the heating assembly and the cooling assembly to be matched with the bearing module, so that the temperature of the substrate can be adjusted and controlled in a limited space, the influence between the heating assembly and the cooling assembly can be effectively reduced, and the heating and cooling efficiency is guaranteed.

The invention relates to the field of optical elements, in particular to a coating method of a high-precision intense laser optical lens. The film coating method comprises the following steps: step 1, substrate pretreatment; step 2, surface activation; 3, a preparation stage; step 4, coating treatment; and step 5, post-processing. According to the method disclosed by the invention, the problems of adhesive force, uniformity, damage resistance and the like of a traditional method in strong laser lens coating are solved through fusion of double-plasma cooperation and a self-adaptive gradient composite coating technology. The method provided by the invention can be used for customized production for different laser scenes, and is suitable for high-end fields such as high-energy laser industry, quantum calculation, infrared imaging and the like.

The present application discloses a film coating device and a film coating method. A magnetic drive conveying device drives a battery cell to move; and during movement of the battery cell, the position of a magnetic levitation mover is determined on the basis of preset positions in a magnetic levitation guide rail, and the position of the magnetic levitation mover is used as the position of the battery cell to be transmitted to an encoder, such that the encoder outputs a pulse signal on the basis of the change in the position of the magnetic levitation mover to trigger an image collection device to perform image collection on the battery cell. Compared with the conventional mode of controlling a line scan camera to perform image collection on a battery cell on the basis of a grating ruler and a grating encoder, the scheme provided by embodiments of the present application has less requirements on installation precision, is easier to implement, and is less affected by the environment, thereby making an imaging result more accurate.

The invention discloses a multifunctional fully-degradable mulching film with water taking, slow release and soil improvement functions and a preparation method thereof, and belongs to the technical field of agricultural mulching films. The method comprises the following steps: preparing a PVA aqueous solution; the preparation method comprises the following steps: extracting a 3-8wt% nano cellulose solution from plant fibers by a two-step DES method; preparing a silicon source dispersion liquid; adding 10 parts of a nanocellulose solution, 1.25 parts of a silicon source dispersion liquid and 20 parts of glycerol into 100 parts of a PVA aqueous solution to obtain a film coating liquid; adding humic acid and an ion-based fertilizer into the film coating liquid, uniformly mixing, and carrying out curtain coating and drying to form a base film; the preparation method comprises the following steps: preparing 8-12wt% of a hydrophobic degradable material solution, and performing electrostatic spinning on a base film by using the solution to form a Janus structure, thereby obtaining the multifunctional full-degradable mulching film which can realize water extraction from air. The device has a function of taking water from air and a fertilizer slow release function, can release different fertilizers in a gradient manner, and meets the requirements of plants in different growth cycles. After being used, the soil conditioner can be directly turned into soil, the rest part directly acts with the soil, and PVA and humic acid synergistically improve the soil environment.

The invention provides a radio frequency control device and method and semiconductor process equipment, and the device comprises a radio frequency connection unit which is used for enabling a radio frequency end and a grounding end of a radio frequency source to be electrically connected with a wafer boat in a process chamber of the semiconductor process equipment, and enabling the polarities of two adjacent boat sheets in the wafer boat to be opposite; the impedance control unit is connected between the radio frequency connection unit and the grounding end of the radio frequency source and can be switched between a first impedance state and a second impedance state, and in the first impedance state, the impedance control unit is used for enabling the radio frequency current to return to the grounding end of the radio frequency source through the first radio frequency loop; and in the second impedance state, the impedance control unit is used for enabling the radio frequency current to return to the grounding end of the radio frequency source through the second radio frequency loop. According to the scheme, the problems that in the prior art, film coating cannot be conducted on the wafer between every two adjacent boat pieces, and cleaning is incomplete in the cleaning process can be solved.

The invention discloses a PVC film coating uniformity detection method based on spectral analysis, and relates to the technical field of optical detection, and the method comprises the following steps: S001, adopting a controllable incident illumination system with a multi-angle rotation function to carry out continuous angle scanning on the surface of a PVC film, collecting reflection spectrum intensity data in a corresponding wave band range according to different incident angles, and generating a spectrum data matrix containing interference characteristics; and S002, carrying out continuous wavelet transform processing on the spectral data matrix, carrying out multi-scale local decomposition on a spectral response signal, extracting and separating a periodic interference characteristic signal, and obtaining a purified spectral matrix after interference reduction. According to the method, through multi-angle spectrum collection and interference feature stripping, accurate identification of a coating thickness abnormal area and combination of strength indexes, spraying parameters are regulated and controlled, a detection-compensation-reinspection closed-loop mechanism is constructed, interference misjudgment is effectively avoided, and the accuracy and regulation and control efficiency of uniformity detection of the PVC film coating are improved.

The utility model discloses coating equipment for improving the uniformity of a magnetron sputtering film, and belongs to the technical field of semiconductor production equipment.The coating equipment comprises a substrate table, the substrate table is provided with a cooling channel and a cooling air hole, and a supporting part is arranged at the upper end of the substrate table in a protruding mode; the air hole plug is arranged on the substrate table in a lifting adjusting manner; and the base plate is placed on the supporting part. Opening and closing of the cooling air holes in the corresponding positions can be adjusted according to the temperature distribution condition of the substrate in the debugging stage, the cooling air holes are opened in the high-temperature area to be communicated with the cooling channel, cooling air is used for cooling, and when the cooling air is sent out from the cooling air holes, the air uniformizing space can be used for uniformizing the cooling air in a small range, so that the cooling efficiency is improved. Regional cooling is achieved, the purpose of temperature regulation and control is achieved, the temperature of the surface of the substrate is uniform and consistent, and then the uniformity of coating is improved.

The invention belongs to the technical field of pharmaceutical preparations, and particularly relates to a melogabalin besylate tablet containing a stabilizer and a preparation method of the melogabalin besylate tablet. The melogaba besylate tablet containing the stabilizer comprises a coating and a tablet core, wherein the tablet core comprises the following components: melogaba besylate, the stabilizer, a disintegrating agent, a lubricating agent and the balance of a filling agent; and the coating is prepared from the following materials: an Intai W100 film coating premixing agent and acrylic resin IV. The filling agent comprises xylitol, pregelatinized starch and maltodextrin in a mass ratio of (3-4): 3: (1-2). The stabilizer is vitamin E succinic acid polyethylene glycol ester. The coating is prepared from the following materials: an Intai W100 film coating premixing agent and acrylic resin IV in a mass ratio of (1-1): (1-2). According to the melogabalin besylate tablet prepared by the invention, the stability and the dissolution performance can be synchronously improved.

The invention discloses a precise positioning control method and system for photovoltaic module laminating welding, particularly relates to the technical field of welding positioning, and is used for solving the problem of systematic alignment deviation caused by independent control of welding and laminating procedures, lack of unified reference and physical deformation of battery strings in the prior art. A battery string image is obtained after welding, a morphological feature point set is extracted, the morphological feature point set is registered with a theoretical feature point set to calculate a current deformation field, then local curved surface fitting residual and equivalent strain energy density collaborative analysis identification is carried out, a pseudo deformation area is filtered out, and a credible physical deformation field is obtained. And generating importance weight distribution by combining functional information of a battery string region, performing compensation reconstruction on theoretical positioning coordinates of a film coating material by taking the weight as a target, generating a target fitting track under a film coating process reference coordinate system, and finally controlling an execution mechanism to operate according to the track, thereby realizing high-precision alignment fitting of the battery string and the film coating material.

The invention relates to the field of pharmacy, and discloses a felodipine sustained release tablet and a preparation method thereof.The felodipine sustained release tablet comprises a tablet core and a film coating layer wrapped outside the tablet core, and the tablet core comprises the following components in parts by mass: 3.5-5.0 parts of felodipine nanocrystals; 50 to 65 parts of modified hydroxypropyl methylcellulose; the preparation method comprises the following steps: S1, preparing felodipine nanocrystals: dissolving felodipine in an organic solvent, and carrying out anti-solvent precipitation and high-pressure homogenization treatment, so as to obtain a nanocrystal suspension; drug nanocrystals are embedded between silicate layers through an ultrasonic embedding technology, and burst release is inhibited by combining physical confinement and electrostatic adsorption; the gradient pore skeleton constructs a pore layer-by-layer decreasing structure through fluidized bed multi-temperature zone deposition, the release rate is accurately regulated and controlled, and collapse is avoided; the ionic liquid stabilizer is introduced, and the problems of nanocrystal aggregation and degradation are synchronously solved through hydrogen bond anchoring and an antioxidant function.

The invention relates to the technical field of laser holographic image generation, in particular to a thin film hologram generation method and device, and the system comprises the steps: S1, thin film pretreatment; s2, coating operation and continuity detection are carried out; s3, analyzing the mass ratio of the coating film; s4, checking the hologram image; s5, adjusting coating quality detection parameters; the method comprises the following steps: performing surface pretreatment on a film, performing coating operation, performing continuity detection on a film coating liquid, performing mass ratio analysis when a detection result is a local discontinuous category, and performing corresponding re-coating measures; and after illumination treatment, carrying out quality inspection on a hologram on the thin film through an image recognition technology, and adjusting related parameters based on quality fluctuation occurring in the coating process so as to ensure that a final product meets the quality standard. According to the invention, a high-efficiency and stable coating technology is adopted, the production efficiency is improved while the film quality is ensured, and the device has the production capacity of being widely applied to anti-counterfeit labels, trademarks and self-defined stickers.

The invention belongs to the field of food additives-compound coating agents and medicine solid preparation thin film coating premixing agents, and relates to a preparation method of a solid dispersion and a water-based gastric-soluble efficient moisture-proof coating composition containing the solid dispersion. According to the solid dispersion provided by the invention, stearic acid and magnesium stearate are selected as indissolvable components, polyglycerol fatty acid ester is used as a surfactant, hydroxypropyl methylcellulose / hydroxy propyl cellulose / sodium alginate is used as a carrier, and a grinding process is combined to treat the raw materials, so that a good synergistic effect is formed among the components; and the solid dispersion which can be stably amorphized is prepared. Tests find that the content of insoluble components in the prepared solid dispersion is obviously improved unexpectedly, and a coating composition of a carrier containing the solid dispersion has extremely excellent moisture resistance after film formation.

The utility model relates to the technical field of film production, and discloses spraying equipment for film production, which comprises a machine body, an unwinding roller and a winding roller, a spraying mechanism for spraying liquid, a heating mechanism for accelerating curing of the coating liquid, a drying box fixedly mounted on the machine body and a camera are sequentially arranged along the moving direction of the film. According to the utility model, the position of the heating roller moves upwards and simultaneously drives the transmission rod and the abutting rod to move upwards, at the moment, the abutting rod pushes the air deflectors to rotate through the fixed shaft and the rotating shaft, and the abutting plates on the two groups of air deflectors push the other two groups of air deflectors to move synchronously, so that the size of an air guide port formed by the four groups of air deflectors is larger, and the outlet area is larger; in addition, the thin film coating is preheated through the heating roller, and it is further guaranteed that the thin film coating is not blown away by hot air, and the machining effect of the thin film is not affected.