4609results about "Containers preventing decay" patented technology

A packaged, sealed container system for stable storage of a formulation of an oxygen-sensitive pharmaceutical compound, the packaged, sealed container system comprising a primary container including therein a formulation of an oxygen-sensitive pharmaceutical compound, a secondary outer container comprising a first flexible sheet layer, an opposing second flexible sheet layer, and a seal disposed along a common peripheral edge of the first and second flexible sheet layers, such that the primary container is disposed between and enclosed by the first and second flexible sheet layers of the secondary outer container. An oxygen scavenger is also disposed between and enclosed by the first and second flexible sheet layers of the secondary outer container. The oxygen scavenger is in fluid communication with the contents of the primary container.

The invention discloses a heat preservation box and processing equipment thereof, and belongs to the technical field of heat preservation boxes. The heat preservation box comprises a box body and a box cover, the box body is formed by wrapping a heat preservation layer with an inner shell and an outer shell, and the heat preservation layer is wrapped with a box cover shell. An aerogel groove and a vacuum plate groove which are overlapped are formed in the heat preservation layer and filled with aerogel particles and a vacuum heat insulation plate respectively, and the surface of the heat preservation layer is sprayed with a nanometer aerogel coating and provided with a reflecting film. The box body is connected with the box cover through a supporting hinge, and is provided with a supporting piece, a roller, a limiting sinking groove, a flow guide channel and a residual volume space measuring system. The processing equipment comprises a bracket, a rotary power source, a rotary platform, a vibration unit and a filling device, and can realize uniform filling and compaction of aerogel particles. The problems that a traditional heat preservation box is poor in heat preservation performance, pressure is accumulated, and transportation is inconvenient are solved, and the heat preservation box is suitable for cold-chain transportation and other scenes.

A rotary locking flip type preservation box comprises a box body and a box cover, a sealing structure is arranged between the box body and the box cover, a rotary locking structure is arranged on one side of the box body and the box cover, a flip mechanism is arranged on the other side of the box body and the box cover, the rotary locking structure comprises a downwards-concave rotary groove formed in the box cover, a rotary knob is arranged in the rotary groove, and the flip mechanism is arranged in the rotary groove. A locking plate is arranged on the knob, a box edge which is higher upwards is arranged at the opening part of the box body corresponding to the locking plate, a corresponding lock hole is formed in the box edge, and the locking plate is matched with the lock hole. Compared with an existing preservation box in the market, a rotary locking structure is adopted, the lock plate is matched with the lock hole, abrasion is almost zero, locking is reliable, the service life is longer, the sealing performance is better, and the food preservation locking effect is more reliable.

The invention discloses a high-barrier antibacterial packaging material, a preparation method thereof and a packaging bag, and belongs to the technical field of packaging, the packaging material comprises the following raw materials by weight: 75-85 parts of polylactic acid, 15-25 parts of poly (butylene succinate), 2-6 parts of epoxidized urushiol, and 1-3 parts of benzyl quaternary ammonium salt modified montmorillonite; the epoxidized urushiol is prepared by carrying out epoxidation reaction on urushiol and organic peroxy acid; the packaging material further comprises the following raw materials: 2-5 parts of sepiolite fiber loaded magnesium oxide; according to the invention, biodegradable polylactic acid and poly (butylene succinate) are taken as base materials, and epoxidized urushiol is taken as a reactive compatilizer, so that the compatibility between polylactic acid and poly (butylene succinate) is improved, and meanwhile, the binding property between a polymer matrix and benzyl quaternary ammonium salt modified montmorillonite and sepiolite loaded magnesium oxide is enhanced; the packaging material with good mechanical property, barrier property and antibacterial property is obtained.

The utility model provides a crystal ingot turnover device which comprises a turnover box, a lining is inserted in the turnover box, a plurality of V-shaped grooves used for storing crystal ingots are evenly formed in one face of the lining, and a plurality of round grooves used for storing the crystal ingots are evenly formed in the face, away from the V-shaped grooves, of the lining. First vent grooves are formed in the middle positions of the two parallel side faces of the lining, an insertion groove is formed in the middle position of one side face in each first vent groove, an insertion plate is inserted in each insertion groove, a round hole is formed in the middle position of the upper surface of each insertion plate, a column rod is installed in each round hole, and two vertical grooves are symmetrically formed in the upper surface of the lining. Threaded blind holes are formed in the two ends of the column rod, connecting rods are in threaded connection with the interiors of the threaded blind holes, and a cross rod is fixedly connected to the end, away from the column rod, of each connecting rod. The crystal ingot turnover box has the advantages that the specifications of turnover boxes used for storing crystal ingots of different specifications are uniform, and the management difficulty of the turnover boxes for storing the crystal ingots is lowered.

A preparation method of a bacteriostatic and antioxidant zein / hyaluronic acid degradable preservative film relates to the field of foods.The method comprises the steps that a zein-hyaluronic acid solution and a citrus polyphenol solution are mixed, distilled water is dropwise added, vacuum concentration is performed, the mixture is mixed with a laminarin solution, auxiliary materials are added, uniform mixing, bubble removing and film preparing are performed, and the preservative film is obtained. After drying, obtaining a zein-HA film of laminarin and citrus polyphenol; or mixing the zein-hyaluronic acid solution with the moringa oleifera leaf extract powder, dropwise adding distilled water, concentrating under reduced pressure, mixing with the laminarin solution, adding the sodium alginate solution and auxiliary materials, defoaming, pouring to form a film, and drying to obtain the zein-HA film of the laminarin and the moringa oleifera leaf extract. The synergistic effect among the substances of the protein film can effectively improve the fresh-keeping effect of the composite film, and the release property of the composite film can further improve the fresh-keeping effect on fresh-cut food.

The utility model discloses a storage device for prolonging the use stability of repackaged solid medicine, which comprises a main body unit, the main body unit comprises a bottom plate, the two sides of the bottom plate are fixedly connected with supporting plates, a heat preservation shell is fixedly connected between the supporting plates, the upper side surface of the heat preservation shell is provided with a medicine taking opening, and the medicine taking opening is provided with a medicine storage cavity; and a rotating door is rotationally connected to the interior of the medicine taking opening. Through the elastic force of the spring, the sliding block fixedly connected with the spring slides on the surface of the fixing rod, the connecting rod rotationally connected with the sliding block pushes the connecting block to slide in the sliding groove, the fixedly-connected storage tank is driven to move outwards, and when the rotating door is turned over and opened, the storage tank can stretch out of the interior of the medicine taking opening and is clamped with the medicine taking opening; when the overhead door is opened to store and take medicine from the inside of the storage tank, the internal and external environments of the bottom plate are not communicated with each other, and the storage environments of other medicine are not affected.

The invention discloses an antibacterial film loaded with a fucoxanthin nano material and a preparation method of the antibacterial film. The antibacterial film is prepared by taking a nitrogen-rich hollow carbon material-fucoxanthin (NHC-FX) nano material as an antibacterial photosensitizer, chitosan as a substrate of a film and glycerol as a plasticizer of the film through a solution casting method. The antibacterial film disclosed by the invention is good in hydrophobicity and high in stability, can reduce transmission of ultraviolet light, and has a good photodynamic antibacterial effect. The antibacterial food packaging material can be used as an antibacterial food packaging material or a preservative film, can prevent food from being polluted by microorganisms, and can isolate damage of ultraviolet rays to the food.

The invention discloses a natural eutectic solvent enhanced konjac glucomannan film as well as a preparation method and application thereof, and belongs to the technical field of food packaging. The konjac glucomannan film enhanced by the natural deep eutectic solvent, provided by the invention, comprises konjac glucomannan, the natural deep eutectic solvent and gallic acid modified MXene nanoparticles; the mass ratio of the konjac glucomannan to the natural eutectic solvent to the gallic acid modified MXene nanoparticles is (850 to 950) to (50 to 250) to (10 to 40). Through the synergistic effect of all the components, the defects that KGM is insufficient in intrinsic mechanical strength, weak in antibacterial and antioxidant performance and poor in moisture resistance are overcome, the comprehensive performance of the film is remarkably improved, and the film can be used for cold-chain packaging of high-value fresh food and has environment friendliness and functional practicability.

According to the basket bearing structure and the transfer basket, the bottom support is arranged in the basket body, the supporting strips are arranged on the bottom support, the groove-shaped structures with the openings in the upper portions are formed among the supporting strips, the bottom and the four sides of the bottom support are closed faces, and therefore the liquid storage space capable of collecting and containing blood is formed, and the problem that the blood leaks is solved; the buffer permeation pad is arranged above the bottom support, fresh meat is prevented from being pressed by the bottom support to form indentations, meanwhile, downward permeation of blood is not affected, meanwhile, the bottom support and the buffer permeation pad are locked by arranging the locking mechanism, the situation that the buffer permeation pad is lost due to the fact that the buffer permeation pad is separated from the bottom support in the circulation process of the transfer basket is avoided, and continuous application of the transfer basket is facilitated; the structure is simple, the cost is saved, the loading and transporting efficiency is improved, and the surface of the buffer permeation pad is smooth and does not absorb water, so that all blood water can be guided to the permeation holes and permeates into the bottom support downwards through the permeation holes, and the bottom support and the buffer permeation pad can be cleaned conveniently in the follow-up process.

A contact lens packaging container and a contact lens product are provided. The contact lens packaging container is formed by a plastic material and a color powder material dispersed in the plastic material. The contact lens packaging container has a light blocking rate of not less than 20% under a wavelength measurement range between 380 nanometers and 780 nanometers through a spectrophotometer.

The invention relates to the technical field of medicinal material storage, and discloses a white muscardine silkworm storage device which comprises a temperature control assembly and a protective shell, a plurality of storage layers are arranged in the protective shell, two symmetrical moving plates are arranged in each storage layer, trays are arranged on the upper surfaces of the moving plates, each storage layer comprises an upper shell and a lower shell, and the upper shell and the lower shell are arranged in the upper shell. Two symmetrical rotating assemblies used for reciprocating up and down are arranged in the upper shell, a plurality of exhaust pipes are arranged on the bottom face of the lower shell, the exhaust pipes sequentially penetrate through the lower shell and the moving plate, piston sets used for exhausting air are arranged in the exhaust pipes, and a plurality of rotating blades are arranged on the outer surfaces of the rotating assemblies; by changing the positions of the moving plate and the tray, a plurality of exhaust pipes are inserted into the silkworm larva, so that internal heat can be discharged, when the expansion material expands again, the upper shell and the lower shell can be separated, and the first wind shield on the side face is opened, so that ventilation and heat dissipation are further performed, and the silkworm larva is prevented from going bad.

The invention discloses a bacteriostatic and antiviral bamboo pulp paper-based sanitary isolation bag as well as a preparation method and application thereof, and belongs to the field of functional paper-based packaging materials. The isolation bag takes bamboo pulp fiber paper as a base material, and the surface of the isolation bag is coated with a water-based polyhydroxyalkanoate functional coating. According to the preparation method, a special polyphenol derivative-chitosan quaternary ammonium salt-nano zinc oxide organic-inorganic hybrid factor is introduced, and the problem of agglomeration of nano particles is effectively solved by utilizing the special bridging effect of polyphenol, so that high-density cation capture and oxidation inactivation sites are constructed on the surface of the coating. Compared with the prior art, the method has the advantages that the method does not need to depend on organic fluorine compounds, and the excellent waterproof and oil-proof barrier effect and the efficient inactivation of viruses can be achieved only through the extremely low coating amount. In addition, the isolation bag has unique environmental chemical responsiveness, can be efficiently dissociated under the alkaline condition to facilitate repulping recovery, can be completely biodegraded in the natural environment, and perfectly considers the requirements of biological safety protection and green environmental protection.

The invention provides a storage system for immunofluorescence slide glass and an intelligent temperature and humidity coupling control method thereof. The system comprises a closed sample cabin, a controller, a passive buffer layer and other structures, and the temperature and humidity in the cabin can be stably controlled in a dynamic environment. The temperature and humidity in the cabin and the temperature of the key cold surface are monitored in real time through the sensing unit, the local dew point is calculated, and temperature and humidity control is executed. And the controller executes a layered gradient coupling control algorithm according to the dynamic dew point safety margin to ensure accurate control of temperature and humidity. The passive buffer layer is of a composite structure of a phase change material and a moisture absorption material, and the temperature and humidity are adjusted through solid-liquid phase change and molecular adsorption. The system can effectively improve the storage stability and safety of the immunofluorescence slide, and is suitable for sample storage management in industries such as life science and biological pharmacy.

Systems and methods for providing compostable food containers, which preserve the quality of a food product for an extended duration of time, and which optionally, allow for cooking of the food product therein. In some implementations, the food containers are sturdy, stackable, insulating, and require minimal or no manual labor to assemble. In some implementations, the food container includes a base and a cover, which cooperate to form a closed chamber for supporting, protecting, insulating and optionally cooking a food product, such as a pizza. The base and cover may each be formed of a single layer of material including, but not limited to, molded sugarcane fiber (“bagasse”), molded wood fiber, molded bamboo fiber, molded paper or plastic.

The invention discloses a propolis ethanol extract loaded ZIF-8 cellulose starch-based sustained-release film and a preparation method thereof, and belongs to the technical field of food preservative films. The propolis ethanol extract loaded ZIF-8 cellulose starch-based sustained release membrane is prepared from the following raw materials in parts by weight: 30 to 70 parts of starch, 30 to 70 parts of cellulose nanofiber, 7.5 to 17.5 parts of glycerol and 4 to 8 parts of filler. The starch wastewater is used as a starch raw material source, and the cellulose nanofibers loaded with ZIF-8 by the propolis ethanol extract are added, so that the prepared slow-release film is high in strength and good in toughness, can be naturally degraded after being used, reduces environmental pollution, ensures the safety of the product, has antibacterial and antioxidant effects, provides benefits for fresh keeping of fruits, and has a wide application prospect. Meanwhile, a new thought is provided for resource utilization of the starch wastewater.

A gas barrier laminate including: a substrate layer which contains a polyolefin resin; a barrier layer; and an overcoat layer which contains a polyvinyl alcohol resin, the overcoat layer having a surface which has a surface hardness of 1.5 GPa or less, as measured by a nanoindentation method.

The invention relates to the related technical field of food processing. The invention relates to a packaging material, in particular to a high-tannic-acid-loading nano titanium dioxide antibacterial packaging material, a preparation method and application thereof. According to the preparation method, the capacity of loading a bacteriostatic agent tannic acid on mesoporous nano titanium dioxide is improved through amination modification, amination modified nano titanium dioxide loaded with high tannic acid is prepared, polyethylene glycol and glycerol are used as plasticizers, a polylactic acid base material is embedded, and the nano titanium dioxide loaded with high tannic acid is prepared. Further, the high-tannic-acid-loading nano titanium dioxide bacteriostatic packaging material with good tannic acid loading, antibacterial performance, oxidation resistance and fresh-keeping effect is prepared, and a new bacteriostatic packaging choice is provided for the food processing industry.

The invention belongs to the technical field of preservation, and particularly relates to a chitosan-MOF composite film and a preparation method and application thereof. The preparation method comprises the following steps: (I) preparing nanoparticles; and (II) preparing the chitosan-MOF composite membrane. In the preparation process, different proportions of Co-MOF are added into the chitosan-based film, so that the mechanical property, hydrophobic property, barrier property, ammonia response property, antibacterial property and the like of the chitosan-based film are enhanced, the enhanced CS / MOF film can meet the practical application of subsequent fresh-keeping packaging, and a foundation is laid for fresh-keeping research of fresh meat, fruits, vegetables and the like.

The utility model relates to the technical field of tobacco leaf storage, in particular to a tobacco leaf storage device with an insect repelling function, which comprises a body for storing tobacco leaves, the body is made of corrugated paper, and the body comprises two opposite first side walls and two opposite second side walls; a breathable insect prevention plate is arranged on the inner side of the first side wall; the insect prevention plate is matched with the first side wall in the horizontal direction of the first side wall to form a plurality of containing cavities. The containing cavity is used for containing volatile insect repellant, the insect repellant enters the tobacco leaves close to the insect prevention plate along the insect prevention plate on the first side wall, a middle pipe is arranged at the top of the body, and the middle position of the tobacco leaves can be communicated with the position where the insect repellant is located through air holes in the middle pipe. Through ventilation of the middle pipe, all the tobacco leaves in the storage box can make contact with the insect repellant easily in the storage process, and the effect that tobacco pests eat the tobacco leaves is reduced.

Storage containers include a body with an interior space and a lid, connected at an edge to the body. A dehumidifier is in the interior space, configured to dehumidify air within the interior space. An actuator, mounted between the body and the lid, is configured to lift the lid when an arm of the actuator extends. Actuator control circuitry is configured to extend the arm of the actuator responsive to a received signal.

It is often difficult to dry sports kits in a holder. Here, a portable sport kit box has an air circulation structure that assists in drying activewear or warming it before use. A false bottom distributes airflow in the box. Ducts are present in accessory holders. The tub walls have slots for holding the lid in a vertical plane to hang clothes on for initial draining. A drain plug drains water after washing activewear. A filter is mounted on a wall through which air enters or exits the box. The filter can be connected to an external fan powered by a vehicle or internal or external battery. A solar panel, internal heater or internal fan may be included.

The invention discloses an after-finishing method applied to a buccal nicotine product production process and the buccal nicotine product production process, the after-finishing method comprises the following steps: obtaining a newly produced first nicotine product, the water content of the first nicotine product being lower than the factory target water content; loading a preset number of first nicotine products into a preset sealed container; arranging a humidifying bag in the sealed container and then sealing the sealed container; the sealed container is stored at normal temperature, the first nicotine product is moistened to the target water content within the preset time range to form a second nicotine product, and the water activity in the sealed container is kept within the preset water activity range. On the premise that the factory water content standard of nicotine products is not changed, the initial water content of the formula is reduced in the production and packaging stage, so that the productivity and the packaging qualification rate are improved; and after sealing, a target value is reached within several days, so that the overall manufacturing cost and the consistency risk are reduced.

Systems and methods for providing compostable food containers, which preserve the quality of a food product for an extended duration of time, and which optionally, allow for cooking of the food product therein. In some implementations, the food containers are sturdy, stackable, insulating, and require minimal or no manual labor to assemble. In some implementations, the food container includes a base and a cover, which cooperate to form a closed chamber for supporting, protecting, insulating and optionally cooking a food product, such as a pizza. The base and cover may each be formed of a single layer of material including, but not limited to, molded sugarcane fiber (“bagasse”), molded wood fiber, molded bamboo fiber, molded paper or plastic.