201results about How to "Reduce shedding" patented technology

The utility model discloses a patch type variable inductor, and relates to the technical field of variable inductors. The inductor comprises a base, a magnetic core is fixedly matched with one side of the base, and pins are wound around the periphery of the magnetic core in a matched mode. The winding part is fixedly matched with one side of the base, a T-shaped plate and two T-shaped blocks are elastically and slidably matched with one side of the winding part, an L-shaped plate is fixedly matched with the upper side of the T-shaped plate, and a rotating plate is rotatably matched between one side of the L-shaped plate and one side of each T-shaped block. According to the utility model, through the arrangement of the T-shaped plate, the rotating plate drives one side of the T-shaped plate to slide towards the direction of the base under the action of the T-shaped block, and the pin is positioned on the peripheral side of the winding part through the T-shaped plate, so that the effect of clamping and fixing the pin is achieved, and the problem that the pin falls off from the winding part is reduced.

The utility model relates to the technical field of washing machines, and discloses a drying device for an embedded bathroom cabinet washing machine all-in-one machine, the drying device comprises an exhaust pipe and a collection box, the exhaust pipe is arranged between a cabinet and an outer cylinder; the air inlet end of the exhaust pipe is communicated with an outer barrel of the washing machine; the air outlet end part of the exhaust pipe is arranged outside the cabinet body; the position, close to the air outlet end, of the exhaust pipe is lower than the position, close to the air inlet end, of the exhaust pipe. The collecting box is communicated with the exhaust pipe. The drying device has the effect of reducing the possibility that the interior of the cabinet body is moistened by damp and hot gas exhausted by the drying device.

The utility model provides a kind of for corn planting seed coating device, including frame body and install coating bin on frame body, the frame body is provided with stirring assembly, the stirring assembly includes driving motor and connecting shaft, spiral blade is fixedly installed on the connecting shaft, the driving motor is used to drive connecting shaft rotation.The utility model is communicated with extension ring on the upper end of cover plate, and integrates the drying structure of "blower fan+heating wire":blower fan inhales outside air downward into extension ring, heating wire heats air into hot air of suitable temperature, and hot air enters coating bin through grid plate, and seed in stirring is contacted fully, and water in coating agent is evaporated in real time, and coating agent is solidified rapidly and adhered on seed surface;Meanwhile, the air pipe on cover plate can discharge humidity and excess hot air in bin in time, maintain dry environment in bin, fundamentally avoid the problem of seed adhesion, reduce coating agent drop, guarantee coating stability.

A kind of special unloading device of coal dust container, including crane bridge, both ends of crane bridge are equipped with trolley running mechanism, and the top of crane bridge is equipped with hoist trolley, and hoist trolley is equipped with lifting mechanism, and the below of hoist trolley is equipped with sling, sling includes sling frame, the top of sling frame is equipped with movable pulley assembly, and the top of sling frame is equipped with balance beam assembly, and sling frame is rotatably equipped with rotary lock, and the top of sling frame is equipped with rotary lock driving mechanism;The below of sling frame is equipped with hanging frame, and the top of hanging frame is equipped with lock slot, and the below of hanging frame is equipped with box, and there is turnover mechanism between box and hanging frame, and lifting mechanism includes first lifting drum and second lifting drum, and hoist trolley is equipped with lifting drive mechanism, and there is steel wire rope between sling frame and first lifting drum and second lifting drum.The utility model structure is simple, and convenient to use.

The application relates to a limiting device in the climbing process of a bridge high-pier climbing frame; the limiting device comprises a plurality of bearers, the bearers are rotationally connected on a middle platform of the climbing frame respectively, each bearer is perpendicular to the facade of the bridge high-pier, at least one roller is arranged on the side of the bearer close to the bridge high-pier, the roller is preferably a universal roller, the bearer is rotationally connected with the middle platform through a turnover mechanism, the bearer is fixedly connected with the turnover mechanism, the angle change between the bearer and the middle platform is realized through the movement of the turnover mechanism, and the bearers are arranged on the four edges of the middle platform; the application realizes the limiting effect of the climbing frame in the X and Y directions in the horizontal direction, strengthens the limiting function of the climbing frame, and guarantees the construction safety and construction quality.

This invention discloses a method for producing granules that reduces the loss of active ingredients, relating to the field of granule preparation technology. This method addresses the problem of active ingredient loss in traditional granule production due to high temperatures, oxidation, mechanical friction, and solvent residue. It employs a four-stage process—low-temperature pretreatment, inert gas-protected granulation, gradient drying, and nano-coating and end-capping—combined with the application of a specialized composite binder, significantly improving the retention rate of active ingredients. Experimental data shows that granules produced using this method have a higher retention rate of active ingredients than those produced by traditional methods, while also exhibiting high granule formation rate and dissolution rates that meet relevant standards. The process of this invention is highly stable and widely adaptable, and can be widely applied to granule production in the pharmaceutical, pesticide, food, and feed industries.

This invention discloses a deposition apparatus, including a deposition chamber with a deposition cavity inside. The deposition chamber has an inlet for single-atom or cluster particles to enter the deposition cavity, and a nozzle is provided on the inlet. The deposition cavity has a mounting position for mounting a deposition carrier, and an extraction port for connecting a vacuum pump to create a vacuum in the deposition cavity. The nozzle of this invention features a gradually decreasing inner diameter in the second cavity, accelerating the particles to form a high-speed jet, enhancing the bonding force with the deposition carrier, reducing detachment, and ensuring deposition stability and device reliability. The bottom wall, side walls, and end cap of the deposition chamber are removable and equipped with a sealing structure, facilitating sampling, cleaning, and maintenance, and reducing operational difficulty. The third groove on the mounting platform positions the carrier, and the fourth groove facilitates separation, improving ease of handling. The extraction port maintains a vacuum environment and removes unbound particles, ensuring deposition quality.

The utility model relates to the technical field of dryers, and discloses a dryer with an up-down automatic sideslip sealing door, which comprises a dryer body used for drying driving operation, and a door frame is arranged at the right front end of the dryer body; the air cylinder is arranged on the machine body; one end of the clothes loading door is connected with the output end of the air cylinder; the U-shaped bracket is arranged around the edge of the door frame; the inflatable sealing piece is arranged around the U-shaped support, one end of the inflatable sealing piece is connected with an external air source to control inflation and deflation, and the surface of the inflatable sealing piece abuts against the surface of the clothes loading door after inflation; the guide shaft is arranged on the side, away from the inflation sealing piece, of the clothes loading door and used for assisting the clothes loading door to move linearly. Through the cooperative arrangement of the U-shaped support, the inflatable sealing piece and the clothes containing door, when the clothes containing door is closed, the periphery of the clothes containing door can be completely sealed through the inflatable sealing piece, outward heat dissipation is reduced, the drying efficiency is improved, and then through fixing of the U-shaped support, the situation that the inflatable sealing piece changes before and after movement is reduced.

The invention discloses a ternary material precursor, a ternary material and a preparation method, and belongs to the field of lithium ion battery positive electrode materials. The ternary material precursor is of a multi-layer composite structure and sequentially comprises a core layer, a first transition layer and a second transition layer from inside to outside, and all the layers are prepared by adopting the same ternary (nickel-cobalt-aluminum) system. Through reasonable design of the proportion and thickness of the ternary system of the core layer and the transition layer, the ternary material precursor gives consideration to the high-capacity characteristic of the high-nickel core and the stability of the shell, and the stable structure of the shell can effectively inhibit the structural change and interface side reaction of the high-nickel material in the charging and discharging process. The phenomena of particle cracking and shell layer falling are reduced, and the material shows excellent specific discharge capacity, good cycle performance and thermal stability when being used as a lithium ion battery positive electrode material.

The application discloses a kind of copper foil tension detection equipment, belong to copper foil tension detection technical field.Mainly including workbench, workbench top is equipped with fixed block, and workbench top is equipped with movable block that can move along horizontal direction, workbench top is equipped with baffle, baffle side is equipped with a pair of supercharging mechanism, fixed block and movable block top are equipped with limit mechanism.The copper foil tension detection equipment of the application, movable block is moved synchronously during copper foil tension detection process telescopic column, make piston in fixed cylinder of one end of telescopic column slide, to be respectively discharged into multiple installation groove with gas, to movable block is pressurized, to spring is compressed, enhance the elastic force that limit block is received, to gradually strengthen the elastic force that limit block exerts to copper foil with the continuous movement of movable block, to improve fixing effect, reduce copper foil detection process copper foil both ends fall off, guarantee the normal progress of copper foil tension detection.

The present invention relates to a bioactive conjugate, a preparation method therefor, and use thereof. In particular, the present invention relates to a novel type of bioactive molecular conjugates obtained by improving the coupling of a drug to a targeted moiety in ADC or SMDC, a preparation method therefor, and use thereof in the preparation of drugs for treating diseases associated with abnormal cellular activity.

A crater device for preventing evaporation source pollution comprises a crucible assembly, the crucible assembly comprises a rotating table and a plurality of crucibles arranged above the rotating table, metal sources are placed in the crucibles, and the rotating table drives the crucibles to rotate around the central axes of the crucibles; the crater assembly comprises a rotating disc and a rotating shaft for driving the rotating disc to rotate, and the rotating disc comprises a plurality of craters corresponding to the crucibles; when the crucible rotates, the rotating shaft drives the rotating disc to rotate at a preset angle, and the crater is rotated to the position above the corresponding crucible. The device is suitable for single-layer and multi-layer metal film evaporation, the multiple craters corresponding to the metal sources in the crucibles are formed in the rotating disc, the rotating disc rotates at the preset angle while the crucibles rotate, the craters with the corresponding numbers are rotated to the positions above the corresponding crucibles, metal source pollution is avoided, and meanwhile the production efficiency is improved.

This invention discloses a method for preparing and applying an antibacterial composite coating based on quaternized zinc oxide nanoparticles. The preparation method includes: grafting quaternary ammonium salt compounds onto the surface of zinc oxide nanoparticles to prepare synergistic antibacterial nanoparticles; modifying the substrate surface by co-deposition of dopamine and polyethyleneimine to introduce active functional groups; and spraying or dipping the quaternized zinc oxide nanoparticles onto the modified substrate surface to obtain the antibacterial composite coating. This novel antibacterial material preparation scheme can integrate the advantages of zinc oxide nanoparticles and quaternary ammonium salts, while solving key technical problems such as nanoparticle aggregation, weak interfacial bonding, and limited antibacterial efficiency. It is of great significance for promoting the upgrading of hygiene and safety in the fields of medicine, food, and building materials.

This invention discloses a high-stability lithium battery separator, its preparation method, and its application, relating to the field of lithium-ion battery separator materials technology. The key technical points are that the separator is a multilayer composite structure, comprising: a polyolefin microporous base membrane; a ceramic nanoparticle layer uniformly loaded on the surface of the base membrane; and a cross-linked polymer coating covering the ceramic layer. The ceramic nanoparticles have a particle size of 10-100 nm, the coating thickness is 1-5 μm, and the overall separator porosity is 35%-55%. The ceramic nanoparticles are selected from at least one of alumina (Al2O3), titanium dioxide (TiO2), or magnesium hydroxide (Mg(OH)2), and are fixed to the base membrane surface by a sol-gel method or a spraying method. The ceramic nanoparticle layer constructs a heat-resistant support framework, which can limit the dimensional shrinkage of the polyolefin microporous base membrane under high-temperature conditions, reducing the risk of short circuits caused by separator thermal shrinkage.

The utility model belongs to the technical field of insulating board, specifically a kind of high-strength insulating plastic insulating board, including insulating board body, the insulating board body lateral wall is fixedly connected with lug, the insulating board body is distantly located lug lateral wall and is equipped with recess, lug and recess middle part are equipped with multiple groups of jack, and symmetrically set, the top of the insulating board body close to recess is detachably installed with connecting plate, the connecting plate bottom is fixedly connected with plug rod, this step is equipped with the setting of insulating board body, lug, recess, connecting plate, plug rod, ceramic plate and locking assembly, and high-strength insulating plastic insulating board structure is formed, the function of the multiple insulating board body quick splicing is realized, the cumbersome step of needing to screw bolt fixed when the multiple insulating board body is spliced is solved, the convenience when insulating board body splicing is improved, the speed when insulating board body splicing is improved, the step of insulating board body splicing is simplified.

This invention provides a multilayer coated low-temperature carbon capture material, its preparation method, and its application. The preparation method employs a four-layer sandwich multilayer coating process: a mixed slurry-alumina slurry-mixed slurry-alumina slurry. A mixed slurry coating (active layer), an alumina slurry coating (bonding transition layer), a mixed slurry (active layer), and an alumina slurry (protective layer) are sequentially formed on the surface of a porous honeycomb carrier. The transition layer and protective layer formed by the alumina slurry enhance the bonding strength between the active ingredient (potassium carbonate) and the carrier, while preventing the active ingredient from directly contacting external moisture, reducing potassium carbonate shedding during cycling, and ensuring stable carbon capture performance during multiple adsorption-desorption cycles. The multilayer thin-coating method ensures the effective loading of the active ingredient and avoids cracking and peeling caused by excessive internal stress in thick coatings, thus improving the overall stability of the coating.

The utility model belongs to the technical field of microbial culture, and particularly relates to a microbial culture shaking table which comprises an operation table, a workbench is installed on one side of the operation table, a culture chamber is formed in the middle of the workbench, a cover is arranged at the top of the culture chamber and hinged to the workbench, a shaking table assembly is installed in the middle of the culture chamber, a plurality of containing grooves are formed in the top of the shaking table assembly, and a plurality of silica gel blocks are fixedly connected to the middles of the containing grooves. By arranging the silica gel blocks, the friction force between the silica gel blocks and the culture dishes can be increased, the culture dishes are assisted to be clamped more firmly in the placement grooves, and the phenomenon that the culture dishes fall off when the shaking table assembly operates is reduced.

The utility model belongs to the technical field of milling cutter coating clamps, and particularly relates to a milling cutter coating spraying clamp which comprises a guide rod fixedly connected to the upper surface of a base, a connecting column fixedly connected to the fixed center of the upper surface of the guide rod, a wafer detachably connected to the connecting column, a mounting groove formed in the lower surface of the base, and a positioning mechanism arranged on the base. According to the milling cutter spraying device, a plurality of milling cutters can be conveniently sprayed at the same time, the spraying efficiency is greatly improved, the milling cutter spraying device is suitable for large-scale production scenes, the base is placed on the rotating base, it can be guaranteed that the milling cutters can be evenly sprayed, the limiting rods penetrate through the mounting grooves and are fixedly connected with the positioning openings, and the positioning openings in the positioning pieces abut against the milling cutters; and the precise position of the milling cutter in the spraying process is ensured, and the spraying uniformity and accuracy can be ensured.

The invention provides a negative electrode plate, a negative electrode plate preparation method and a battery, the negative electrode plate comprises a negative electrode active material layer, the negative electrode active material layer comprises a negative electrode active material and a modified binder, the negative electrode active material comprises a silicon carbon material and a polar coating, and the polar coating coats the silicon carbon material; the modified binder comprises a binder precursor, and an epoxy compound is grafted on the binder precursor. According to the negative plate provided by the invention, the silicon-carbon material is coated with the polar coating, the negative plate can be tightly attached to the silicon-carbon surface by utilizing polar interaction, the volume expansion of the silicon-carbon material is inhibited in the cyclic charging and discharging process, and meanwhile, the modified binder grafted with the epoxy compound can be used for inhibiting the volume expansion of the silicon-carbon material through the strong interaction among the epoxy compound, the silicon-carbon material and the polar coating. According to the present invention, the structure loosening caused by expansion is inhibited, and the flexibility of the binder is optimized, such that the binder can adapt to the expansion and shrinkage of silicon carbon, and the shedding of the active material and the side reaction of the electrolyte during the circulation process are reduced so as to effectively alleviate the capacity fading and improve the cycle life.

The utility model provides fruit juice enzymolysis separation equipment, and belongs to the technical field of fruit juice processing. The problems that in the prior art, when juice is separated, a filter screen is prone to being blocked, juice discharging is affected, and the filter screen is not easy to clean are solved. The fruit juice enzymolysis separation equipment comprises an enzymolysis tank and is characterized in that a cover body is connected to the top of the enzymolysis tank in a sealed mode, a feeding hopper penetrating through the cover body is arranged on the cover body, a sealing cover is arranged on the top of the feeding hopper, a motor is arranged in the middle of the top of the cover body, and the output end of the motor penetrates through the cover body and is in transmission connection with a stirrer; and the outer side of the stirrer is detachably connected with a filter net basket. The juice extractor has the advantages that the filter screen basket is large in filter area and not prone to blockage, normal juice output is guaranteed, the filter screen basket is convenient to take out for cleaning, and cleaning efficiency is improved.

The utility model discloses a bionic artificial muscle fixing structure and a bionic robot, and relates to the technical field of robots. The bionic artificial muscle fixing structure comprises a bionic body, and the bionic body comprises a hose and a woven mesh layer arranged on the outer side of the hose in a sleeving mode; a first crimping part and a second crimping part, wherein the first crimping part and the second crimping part are respectively abutted against the outer side and the inner side of the bionic main body; and the third crimping part is arranged on the second crimping part in a sleeving manner, and extrudes and fixes the hose and the woven mesh layer together with the first crimping part or the second crimping part. Based on the technical scheme disclosed by the utility model, on the premise that the hose is not damaged, the hose and the woven mesh layer are fully fixed, the probability that the crimping part falls off from the woven mesh layer is reduced, the failure of the expansion bearing function of the bionic artificial muscle is avoided, and the service life of the bionic artificial muscle and the service life of the corresponding bionic robot are prolonged.

The application relates to the plastic raw material mixing technology field, in particular to a plastic raw material dehumidification mixing device, a heating plate is arranged at the bottom of a mixing kettle, the heating temperature can be controlled to compensate for the insufficient heat generated by plastic mixing friction, the accelerated water evaporation of plastic raw material mixing is ensured, a feeding door is arranged at the top of the mixing kettle, a water absorption pad is arranged on the inner wall of the top of the feeding door and fixed on the inner wall of the top of the feeding door through a bearing frame, the hollow structure of the bearing frame enlarges the water vapor contact area, the positioning column of the bearing frame and the positioning hole of the water absorption pad are inserted and matched to reduce the deviation of the water absorption pad, the water vapor in the closed mixing environment is effectively absorbed, the water pollution of the plastic mixing is reduced, and the quality of the plastic products is improved.

The utility model relates to the technical field of photovoltaic supports, and discloses a photovoltaic support which comprises a bottom beam, at least part of the side edge of the bottom beam in the first direction is turned outwards or bent inwards to form a first fixing piece, and the first fixing piece is provided with a first installation position; the supporting connecting pieces are arranged on the bottom beam at intervals in the first direction, and each supporting connecting piece comprises a photovoltaic connecting piece and a second fixing piece; the photovoltaic connecting piece is arranged on the second fixing piece, and the photovoltaic connecting piece is suitable for being fixedly connected with a photovoltaic module; according to the photovoltaic support provided by the utility model, the loosening and deformation of the connecting part caused by the performance degradation of the connecting piece under the influence of mechanical stress and severe environment are avoided, the stability of the overall structure of the photovoltaic support is improved, the capability of resisting extreme weather is enhanced, the service life of the photovoltaic support is prolonged, the service life of the photovoltaic support is prolonged, and the service life of the photovoltaic support is prolonged. Potential safety hazards such as displacement and falling off of the photovoltaic module are reduced, and the problem that a traditional support is poor in connection stability is effectively solved.

The utility model relates to the field of power transformers, in particular to an anti-seismic stable power transformer which comprises a transformer body. The transformer further comprises a supporting frame and a supporting table, the supporting frame is mounted at the lower end of the transformer body, second mounting grooves are formed in the front and back of one side of the supporting table, moving frames used for moving cables are slidably connected to the inner sides of the second mounting grooves, threaded rods are in threaded connection with the ends of one sides of the moving frames, and the threaded rods are rotationally connected with the supporting table through rotating shafts. The transformer body is supported through the supporting frame and the supporting table and connected with a cable, the cable is coiled through the cable coiling roller, the position of the cable coiling roller is adjusted through the movable frame and the rotating base, then the tension degree of the cable is relaxed, and during an earthquake, the cable coiling roller is supported through the third spring and the rotating base to rotate and reset so as to support the cable; therefore, the acting force of displacement between the cables is reduced, the possibility of cable falling is reduced, the possibility of electric leakage is further reduced, and the working stability of the device during an earthquake is improved.

This invention discloses a method for preparing rare earth metals by electrolytic oxides using a fluoride system, belonging to the field of rare earth metal preparation technology. This invention modifies graphite anodes used in rare earth molten salt electrolysis. It improves oxidation and corrosion resistance, reduces anode wear, lowers replacement frequency, and increases production efficiency, yielding high-purity, low-carbon rare earth metal lanthanum. A three-dimensional network framework material is constructed using Prussian blue self-assembly and SiC is deposited to obtain a composite framework material. During pre-calcination with graphite and other materials, the derivatives optimize the crystal structure and interfacial bonding, enhancing the strength of the pre-shaped anode material and ensuring the integrity and performance stability of the electrode structure. Thirdly, the pre-shaped anode material is impregnated with a specific impregnation solution, altering the gas diffusion path and resistance, inhibiting oxidation reactions, and high-temperature sintering generates substances that fill the pores, forming a dense microstructure. Simultaneously, the compounds formed by phosphoric acid enhance cohesion and adhesion, improving oxidation and molten salt corrosion resistance, and extending the service life of the graphite anode.

The invention relates to the field of survey sampling, in particular to a soil body sampling device and method for penetrating through a tunnel in a broken fault zone, the device comprises a supporting framework, a mounting base, a sampling component, a first driving component and a second driving component, the sampling component comprises a sampling pipe and a mandrel, and a spiral blade is arranged on the outer wall of the mandrel; the sampling pipe sleeves the outer side of the core shaft, the sampling pipe and the core shaft are rotationally connected to the mounting seat, the first driving part is used for driving the sampling pipe to move along the height direction of the supporting framework, the movement of the sampling pipe drives the mounting seat to slide along the slide way so as to drive the core shaft to move, and the second driving part can drive the core shaft to rotate. And the mandrel rotates to discharge the sample. The device is reasonable in structural design and simple and convenient to sample, the risk that soil falls off or is disturbed in the lifting and transporting process can be remarkably reduced in the sampling process, the collected soil sample can be easily and completely taken out, and meanwhile, redundant or residual soil can be efficiently discharged.

The utility model provides a kind of rear spoiler that inhibits the turbulence of airflow around vehicle and reduces the possibility of falling during angle adjustment of the wing part of rear spoiler.The wing part (14) of rear spoiler (12) is supported by supporting part (16) via fixed position support structure (18) and adjustment support structure (20) at its both ends.The fixed position support structure and adjustment support structure are configured inside the vehicle width direction of supporting part.The fixed position support structure includes bonding flange (22) arranged on the wing part, and the adjustment support structure includes support bar (28) as the part of bonding flange extending rearward and support bracket (30) fixed on the inner side of the vehicle width direction of the side of supporting part.Angular adjustment long hole (32) and brace receiving opening (50) receiving support bar are formed on the support bracket.The falling of wing part is prevented by the support bar hooked on the lower edge of brace receiving opening.

This application relates to the field of warehousing and logistics technology, and more particularly to a warehousing system and lifting mechanism. The warehousing system includes a first conveying mechanism configured to move items; a robot including a mobile chassis and a lifting mechanism, the lifting mechanism being disposed on the mobile chassis and configured to carry items and place them onto the first conveying mechanism; and a first correction component configured to correct the posture of the items moving on the first conveying mechanism. The warehousing system and lifting mechanism provided in this application can correct the posture of items, thereby preventing items from slipping and improving warehouse operation safety.

The utility model belongs to the field of offshore wind power, and discloses a charging device for a grouting ship for offshore wind power, which is mounted on the grouting ship in a matched manner and comprises a charging mechanical arm and a mooring clamping mechanism, the charging mechanical arm comprises a mechanical arm body and a grouting ship charging mechanism arranged at the execution end of the mechanical arm body, the mechanical arm body drives the grouting ship charging mechanism to move, and the grouting ship charging mechanism is used for being matched with a platform charging device on the parking charging platform to achieve charging of the grouting ship. According to the utility model, charging and parking functions are integrated in one set of device. Integrated butt joint is achieved through precise positioning of the mechanical arm, auxiliary fixing of the suction cup and the charging head of the grouting ship controlled by the telescopic driver. Compared with an existing scattered charging and anchoring mode, the integrated design simplifies the operation process and improves the working efficiency.

This utility model provides a recyclable, biodegradable, and environmentally friendly ink-absorbing needle-punched nonwoven fabric, relating to the field of nonwoven fabric technology. It includes: a nonwoven fabric body; the nonwoven fabric body has a three-layer composite structure, with an upper dense surface layer and a lower dense surface layer, and a middle loose support skeleton. Both the upper and lower dense surface layers are composed of fibers with a diameter of 2 micrometers. A nanofiber cellulose film with a thickness of 8 micrometers is laminated to the surface of the nonwoven fabric body. The nonwoven fabric body has a three-layer composite structure, with upper and lower polylactic acid dense layers (2 micrometers in diameter, each accounting for 20% of the total thickness) controlling ink diffusion and improving strength, and a middle loose support skeleton (6 micrometers in diameter, accounting for 60%, with a porosity of 75%) storing and penetrating ink. The three-dimensional structure is formed by needle punching at 200 needles / cm². The film contains 3% titanium dioxide for UV resistance. Both polylactic acid and nanofiber cellulose are biodegradable materials, suitable for printing, medical, and packaging fields, balancing environmental friendliness, printing performance, and functionality.