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  • Full-Automatic Total Migration Test Technology and Application of Disposable Paper Cups
    Full-Automatic Total Migration Test Technology and Application of Disposable Paper Cups 2024-02-27
    Paper cups are one of the main disposable packaging containers. The general raw materials of disposable paper cups are food-grade wood pulp paper and food-grade PE film, although the outer layer is paper, but the contact with food is the inner plastic film. In the process of use, disposable paper cups usually come into contact with high temperature, acidic and alkaline liquids, and if the paper cups contain more migratory substances, this will migrate to the human body through the food in the process of use, which will have an impact on human health. In order to ensure its safety,worldwide countries have established their own designated food contact materials testing regulations, such as the U.S. FDA 21 CFR, the European Union EU NO 10/2011, Germany LFGB, France DGCCRF, Japan JFSL 370, Italy D.M.21/03/73, UK SI 898, China GB 4806, GB 9685, GB-31604.8. Experimental principles The migration test is performed by selecting the appropriate pretreatment conditions and food simulants according to the characteristics of the food products to which the samples will be exposed in the actual use scenario. The evaporator cup is heated at a set temperature, cooled, weighed, and the procedure is repeated until a constant weight is reached. The simulants were added into the evaporation cup, evaporated in a water bath, dried in a chamber heated to 105℃, and cooled. After the evaporation dish is cooled, the constant weight is determined by a balance (with a sensitivity of 0.01mg), and the experiment is terminated to meet the constant weight requirement of the project. Full-Automatic Total Migration Tester ZF900 Experimental conditions Food simulants selected 4% acetic acid (v/v) and 20% ethanol (v/v); experimental conditions for 70 ℃, 2h; samples for disposable paper cups using the filling method, paper cups filled volume of 150mL food simulants ,S according to the actual contact area for calculation, the number of samples for a blank and 2 parallel samples. The experimental process A food simulant of V=150mL was measured in a measuring cylinder, filled into a disposable cup, sealed with two layers of plastic wrap, tied with a rubber band, and immersed in a preheated oven at 70°C for 2h. A 4% acetic acid blank solution and a 20% ethanol solution were made from the same batch. The contact surface of the food simulants in the disposable cups was calculated as S. A 4% acetic acid blank and a 20% ethanol solution were made from the same batch. Quantitatively measure 100 mL of the pre-treated sample solution, denoted as V1. The solutions were separately added to the AUTO ZF900 Total Migration and Nonvolatility Tester for testing. The automated process of constant weight in empty cup, evaporation in water bath, constant weight in residue and solvent recovery was carried out. Analysis of results The assay data of disposable paper cups measured in 4% acetic acid and 20% ethanol food simulants are shown in Table 1. Table 1 Test results of disposable pap...
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  • OTR & WVTR for Mono Plastics Packaging Material
    OTR & WVTR for Mono Plastics Packaging Material 2024-01-15
    Mono packaging films typically have inherent barrier properties that depend on the specific polymer used. For instance, certain mono films made from materials like polyethylene or polypropylene offer a degree of moisture resistance. However, they might have limited barrier capabilities against gases such as oxygen and carbon dioxide. If your packaging requirements demand superior barrier properties, you might consider multi-layer films or coatings that can enhance resistance to specific elements, providing better protection for the packaged contents.  Mono plastic packaging films can provide certain barrier properties, but their effectiveness depends on the specific type of plastic used. For example, materials like high-density polyethylene (HDPE) or polyethylene terephthalate (PET) offer good moisture and gas barrier properties. However, for applications requiring enhanced barrier performance, such as oxygen or light barrier, multi-layer films with additional coatings or laminations may be more suitable. It's essential to consider the specific requirements of the product being packaged and choose the packaging material accordingly. OTR (Oxygen Transmission Rate) and WVTR (Water Vapor Transmission Rate) tester are crucial for assessing the barrier properties of packaging materials. For mono packaging products, these tests help ensure the integrity and quality of the packaging.  1. OTR Tester Application:    - Purpose: Determines the rate at which oxygen permeates through the packaging material.    - Importance: Essential for products sensitive to oxygen exposure, such as certain food items, pharmaceuticals, and chemicals.    - Application: Mono packaging products can use OTR testing to optimize material selection, ensuring extended shelf life and product stability. 2. WVTR Tester Application:    - Purpose: Measures the rate at which water vapor passes through the packaging material.    - Importance: Critical for products susceptible to moisture, like electronics, pharmaceuticals, and certain foods.    - Application: Mono packaging products benefit from WVTR testing to prevent moisture-related issues, maintaining product quality and longevity. By employing both OTR and WVTR testing, manufacturers can tailor mono packaging materials to specific product requirements, minimizing spoilage, degradation, or damage caused by oxygen and moisture.
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  • the Importance of WVTR Testing for Semiconductor Package
    the Importance of WVTR Testing for Semiconductor Package 2023-12-18
    A semiconductor package is a metal, plastic, glass, or ceramic casing containing one or more discrete semiconductor devices or integrated circuits. Individual components are fabricated on semiconductor wafers (commonly silicon) before being diced into die, tested, and packaged. Water Vapor Transmission Rate (WVTR) testing is critical for semiconductor packaging for several reasons: 1. Protection Against Moisture: Semiconductors are highly susceptible to damage from moisture. Moisture can lead to corrosion of the metal interconnects, oxidation of the lead frames, and other moisture-related failures. WVTR testing ensures that the packaging material has a low permeability to water vapor, thereby protecting the semiconductor from moisture. 2. Reliability and Performance: The reliability of semiconductor devices is paramount, especially in critical applications such as automotive, aerospace, medical, and military. WVTR testing of the packaging material ensures that devices will perform reliably over their intended lifespan. 3. Preventing Delamination and Internal Stresses: Moisture inside the package can cause the different materials within the semiconductor package to expand at different rates, leading to delamination and internal stresses. These can cause cracks and other failures. WVTR testing helps in selecting materials that minimize these risks. 4. Avoiding "Popcorning" During Solder Reflow: The solder reflow process involves high temperatures that can cause trapped moisture to expand rapidly, potentially causing the package to crack or "popcorn." This can lead to catastrophic failure of the semiconductor device. WVTR testing helps to ensure that packaging materials are sufficiently moisture-resistant to prevent this. 5. Quality Control and Assurance: WVTR testing is part of comprehensive quality control and assurance programs for semiconductor manufacturing. It helps to verify that packaging materials meet the required specifications for moisture barrier properties. 6. Compliance with Industry Standards: Various industry standards, such as those set by JEDEC, may specify WVTR requirements. WVTR testing ensures compliance with these standards, which is important for interoperability and reliability across different environments and applications. 7. Long-Term Stability and Shelf Life: Semiconductor devices may be stored for extended periods before being used. WVTR testing ensures that the packaging can protect the device from moisture for the duration of its shelf life. 8. Cost Savings: By ensuring that the semiconductor packaging has a low WVTR, manufacturers can avoid costly failures and warranty claims. It is much more cost-effective to test and ensure proper packaging than to deal with the fallout of device failures in the field. In summary, WVTR testing is a key aspect of ensuring the durability and reliability of semiconductor packages, which in turn affects the performance and longevity of electronic devices. GBPI advanced infrared me...
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  • Come visit GBPI at ArabPlast 2023
    Come visit GBPI at ArabPlast 2023 2023-12-13
    ArabPlast 2023, the largest trade expo for the plastics, petrochemicals, and rubber industry in the MENA (Middle East and North Africa)region, is set to take place from December 13th to 15th, 2023, at the prestigious Dubai World Trade Centre (DWTC) in Dubai, United Arab Emirates. Come visit GBPI at ArabPlast 2023 in Dubai, United Arab Emirates. Address: Dubai International Convention and Exhibition Centre, Dubai, United Arab Emirates Date: December 13-15 ,2023 Booth No.: Hall 6 E03
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  • ASTM E96 Gravimetric Method GBPI Water Vapor Permeability Analyzer AUTO W806
    ASTM E96 Gravimetric Method GBPI Water Vapor Permeability Analyzer AUTO W806 2023-12-12
    GBPI Water Vapor Permeability Analyzer AUTO W806 is based on the test principle of ASTM E96 gravimetric method water vapor transmission and equipped with 6 test chambers. It provides a wide range and high efficiency water vapor transmission rate detection for low, medium and high water vapor barrier materials testing. It is suitable for the water vapor transmission performance test of films, sheets, paper, fabrics, non-woven fabrics and related materials in the fields of food, medicine, medical equipment, daily chemicals, etc.
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