Package Performance Standards

A method for testing the moisture vapor permeability of large-capacity packaging bags when traditional methods fail due to bag size limitations. The method involves filling the bag with a mixture of anhydrous calcium chloride and expanded polystyrene (EPS) foam particles instead of just anhydrous calcium chloride. This allows accurate testing of large bags that cannot be fully filled with desiccant alone. The bag with the mixed particles is sealed and weighed before and after a 24-hour test period. The change in weight represents the moisture absorbed by the bag and filling. The permeability is calculated based on the weight change and the bag volume.

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A device to accurately test the packaging quality of soft pack batteries like those used in electric vehicles. The device allows testing the packaging strength and leakage resistance of soft pack batteries in a more realistic manner compared to existing methods. It does this by securing the battery between fixed supports and applying pressure to simulate internal rupture conditions. The device has features like a load-bearing assembly, driving assembly, and ventilation joint to enable this testing. It also has a pressure detector to measure the force required to rupture the battery packaging. The device improves the accuracy of soft pack battery packaging effect testing, providing data support for battery development and packaging improvement.

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Detecting the packaging quality of soft-pack battery aluminum-plastic film to improve the packaging effectiveness and safety of lithium-ion batteries. The method involves a systematic and accurate testing process to inspect and determine the effect of the aluminum-plastic film casing packaging of soft-pack batteries. It involves measuring the average packaging tensile force of the plastic film case sample, inspecting the bonding condition of the aluminum-plastic film at the joints, and using a microscope to examine the film for any micro-pores or defects. These steps provide a comprehensive and reliable method to assess the packaging quality of soft-pack batteries using aluminum-plastic film.

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Rapidly evaluating the performance and quality stability of photovoltaic packaging films to identify reliability risks. The method involves pretreating the photovoltaic encapsulating film by constant temperature or cyclic high-low temperature exposure. This simulates transportation and storage conditions. The pretreated and untreated films are laminated and tested for cross-linking and peel strength. The pretreatment accelerates identifying reliability issues compared to long-term tests.

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A device and method for accurately measuring the drop resistance of packaging materials. The device has a test chamber, a clamping system, a drop platform, and an air tightness detection system. The packaging material is clamped and dropped onto the platform inside the chamber. After impact, the air tightness of the dropped bag is checked to determine if it remained sealed. This provides an objective, quantitative, and accurate way to evaluate packaging drop resistance compared to subjective visual inspection. The chamber allows testing at controlled temperatures and humidity to simulate transportation conditions.

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Method to accurately evaluate the packaging strength of soft pack lithium batteries to prevent premature opening and leakage due to internal gas buildup. The method involves measuring the packaging strength of the aluminum-plastic film used in soft pack lithium batteries after they are assembled. This is done by compressing the soft pack battery to a specific force, inflating an internal bladder to simulate gas expansion, and measuring the force required to open the packaging. This provides a more accurate representation of the packaging strength under actual battery conditions compared to testing the film alone.

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Packaging material, bag, and container for preventing moisture-induced degradation of sensitive items like pharmaceuticals, food, and electronics during storage. The packaging has a moisture-absorbing layer with specific thickness uniformity. The ratio of minimum to maximum thickness is 0.6 or higher. This reduces variations in moisture absorption capacity across the packaging. The moisture-absorbing layer contains a resin component and granular moisture absorbent. The resin component can be low-density polyethylene (LDPE). The packaging may also have a gas barrier layer. The packaging bag or container can be used for items sensitive to moisture to prevent degradation over time.

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Testing the compression resistance of heavy-duty packaging bags to determine their ability to withstand stacking loads. The method involves stacking the filled and sealed bags in 3 or more layers on a flat base with a top plate. Lowering the plate applies compression until the bags break. This closely simulates real-life stacking conditions versus testing single bags. The stacked configuration allows local loads that better reflect actual usage. It also stabilizes test results compared to tall stacks prone to misalignment.

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A test structure and method to evaluate the overall sealing effectiveness of pouch batteries. The test involves extruding the battery between two plates with a pressure sensor between them. By measuring the pressure required to deform the seals, it provides a quick and simple way to assess the heat sealing quality of pouch battery packaging materials. The test allows comprehensive, effective, and economic evaluation of the sealing strength and integrity of pouch battery packaging without destructive testing.

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A packaging box testing machine that can simulate the performance of electric vehicle packaging in humid and pressurized conditions to ensure durability during transportation. The machine has an enclosed chamber with a platform inside to hold the tested packaging. A humidifier above the platform sprays water to create a humid environment. Side walls with a vertical load mechanism apply pressure to the package. A controller can separately activate the humidifier and load mechanism based on signals. This allows testing electric vehicle packaging in humid and pressurized conditions to evaluate strength and durability.

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Determining the photoprotective performance of packaged products using a controlled light exposure chamber. The chamber provides uniform light dose to three-dimensional packages of varying shape and size. It allows studying multiple packages simultaneously to quantitatively compare light exposure effects. The chamber has temperature control, light sources, positioning mechanisms, and monitoring instruments. It enables determining the package's ability to protect contents from light-induced degradation by exposing filled packages to defined light doses at controlled temperatures.

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Testing the water vapor transmission rate of polymer materials under pressure conditions to evaluate their water resistance for use in packaging materials for deep sea equipment. The method involves subjecting the polymer samples to high hydrostatic pressures while measuring their water vapor transmission rates. This allows assessing the material's water barrier performance at the actual pressures experienced by deep sea equipment.

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Testing method to evaluate the melt adhesion properties of aluminum-plastic films used in lithium-ion battery packaging. The method allows predicting the melt glue effect of the film after electrolyte pollution before battery assembly. This enables faster, cheaper, and more accurate detection compared to visual inspection or mechanical testing methods. The steps involve long-term storage of batteries with the film exposed to electrolyte, followed by evaluating the film's resistance to electrolyte melting and encapsulation integrity. This simulates battery operation conditions and directly assesses the film's anti-pollution melt adhesion performance.

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A method for testing the packaging effectiveness of soft pack lithium batteries to evaluate the quality of the aluminum-plastic film encapsulation. The method involves a combination of steps to provide a more comprehensive assessment of the packaging. The steps include: (1) Applying a pressure of 200 kPa for 60 seconds to the battery to simulate internal gas pressure during production. (2) Immersing the battery in boiling water for 15 minutes to test the seal integrity. (3) Peeling off the aluminum-plastic film to inspect the bond between layers and check for gaps. This provides a visual assessment of the packaging quality. The combined steps provide a more accurate reflection of the packaging effectiveness compared to just measuring tensile force or peel strength.

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Method for testing compatibility of amoxol hydrochloride and sodium chloride injection with packaging materials to ensure quality and safety of these critical care drugs. The method involves migration experiments to assess if packaging materials interact with the medicinal solution. It also involves methodological verification to ensure accuracy and reliability of the migration test results. The verification includes parameters like detection limit, quantification limit, linear range, accuracy, precision, and durability. This provides a basis for selecting packaging materials for amoxol hydrochloride and sodium chloride injection that won't negatively impact drug quality.

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Method for designing cushioning packaging to reduce cushioning while providing scientifically reasonable protection for packaged products. The method involves determining the fragility value of the product through testing, estimation, or reference. Then, by plotting the maximum acceleration-static stress curve for cushioning materials, intersecting points are found between the product fragility curve and the material curve. These points represent the optimal thickness and corresponding load for cushioning.

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A device to test compatibility of packaging materials for injectable drugs by simulating conditions like light, heat, and humidity that can degrade drug quality. The device has a box with a door that can be closed to create a sealed environment. Inside the box is a mounting plate and a removable placement plate with holes for inserting items. The box also has a chute to slide a water tank in and out. The top of the box has a hinged door with a telescoping lighting fixture. The bottom of the tank has a matching chute. The telescoping lighting and sliding tank allow adjustment of the lighting and humidity levels inside the box. This enables testing the drug packaging materials in realistic conditions to assess if they degrade the drug.

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Compression testing device for evaluating the protective performance of transport packaging. The device has an electric screw lifting mechanism, a pressure plate, and a force sensor. The lifting mechanism allows raising and lowering the pressure plate with adjustable force. The force sensor measures the compression force applied to the packaged item. This allows testing the packaging's ability to withstand compression forces encountered during transportation.

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Method for testing the load-bearing capacity of packaging cartons using automated block placement during suspension to improve efficiency and consistency. The cartons are suspended from their vent holes using hooks. Test blocks are dropped onto the cartons using a mechanism that squeezes and releases a sliding plate to lower the blocks. This allows testing multiple cartons simultaneously without manual block placement. The cartons are also arranged in order using a set block device. Qualified cartons have blocks fall out while unqualified cartons have vent holes torn by the falling block.

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A device for testing the migration and barrier properties of dry content packaging materials, such as food packaging. The device has a bottom plate with an upward-facing cavity to hold the packaging material. A sealing ring between flanges on the bottom plate is clamped shut to seal the cavity. An upper plate with air inlets and outlets connects to the bottom plate cavity. This allows testing both the migration of chemicals from the packaging material into the content, and the barrier properties of the packaging against chemical migration from the content.

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