GBPI Packaging Testing Equipment Engineer Mr Yang in our pakistan customers laboratory supply overseas after-sales service and equipment training from 15th March to 29th March 2019. GBPI always pay great attention to our customers after-sales service. our engineer overseas training and services every 3 months to ensure our customers instruments working stable and help their work. This time Mr Yang mainly training and maintenance our pakistan customers water vapor permeability tester,oxygen permeation analyzer,tensile tester,gas chromatography

How to produce the aseptic bags? The production environment of aseptic bags needs to be performed in a clean room above level C. Aseptic bag production process is mainly divided into blown film, cutting, heat sealing bag, vacuum packaging, sterilization and so on. Blown film: Must first open the air purification system in the workshop, disinfect and sterilize the workshop and operating personnel, and then blow the membrane through the purified polyethylene particles at a certain temperature; Cutting: The tubular film obtained after blown film is cut into different size film barrels according to the customer’s requirements; Heat sealed bag: Sealing the film cylinder with a heat sealer; Vacuum packaging: The aseptic packaging bag after sealing is vacuum packed according to a certain amount; Because it is very easy to be polluted during the transportation. Sterilization: The packaged aseptic bags are gamma sterilized to achieve the sterility requirements of the product. Compared with ordinary food packaging bags, the essence of aseptic packaging bags is still a plastic bag, and its material and production process are not much different. However, aseptic bags must be carried out in a clean room, through a complex sterilization process to achieve the strict requirements of aseptic packaging. It is a specialized manufacturing process in which food, pharmaceutical, or other contents are sterilized separately from packaging. The contents are then inserted into the pouches in a sterile environment How to test your aseptic bags water vapor transmission rate WVTR? GBPI W501 Water Vapor Permeability Tester can greatly help you testing your aseptic bags WVTR,below introduce some technical details about our WVTR Tester W501 Application W501 Water Vapor Permeability Analyzer test the water vapor transmission rate of various materials, including: plastic film, composite film, aluminum-plated film, aluminum foil etc.; sheets, such as PP sheet, PVC sheet, rubber, building material, porcelain; other application, such as solar panel, paint film, medical patch etc. It is widely used in packaging, plastic film, food, pharmaceuticals, personal care industries, inspection agency, research institute, college and so on. Working Principle Gravimetric method. Fix the test sample in the middle of test chamber to separate the chamber into upper room and lower room; humid gas flows in upper room, and place desiccant device in lower room; as in lower room it remains dry (0-8%RH) by desiccant, water molecules penetrate through the sample from upper room into lower room, absorbed by desiccant; then the cup weight will increase; system weigh the increasing cup weight so as to calculate the water vapor transmission rate. Testing Standard: GB 1037, GB/T 16928, YBB00092003, ASTM E96, ASTM D1653, ISO 2528, TAPPI T464, DIN 53122-1, JIS Z0208

Before putting much faith in a Chinese factory's test results it makes sense to ensure that the laboratory which conducted the tests has a China laboratory accreditation certificate. Although many factory's have their own laboratories, few of these are independently certified so requesting testing by external testing body is a wise move in many circumstances. These testing bodies should be accredited and you can make sure of this by requesting a copy of their China laboratory accreditation certificate. What is a China Laboratory Accreditation Certificate? The China laboratory accreditation certificate is a certificate issued to test laboratories in Mainland China which have been deemed to conform to the requirements of international laboratory standard ISO/IEC 17025. The certificate is issued in two versions, one in Chinese and the other in English. Either way, the certificate is easily recognizable thanks to the prominently displayed "ilac-MRA" and "CNAS" logos. What Information is Contained in a China Laboratory Accreditation Certificate? China laboratory accreditation certificates are only issued by the China National Accreditation Service for Conformity Assessment (CNAS) and should be similar in appearance to the certificates above. Who Issues a China Laboratory Accreditation Certificate? As Mainland China's only signatory to the International Laboratory Accreditation Cooperation (ILAC) under the Mutual Recognition Arrangement (MRA), CNAS is the only authority which can issue China laboratory accreditation certificates. International Mutual Recognition China national accreditation system for conformity assessment has been a part of international accreditation multilateral recognition system, and is playing an important role in it. CNAS was the accreditation body member of International Accreditation Forum (IAF) and International Laboratory Accreditation Cooperation (ILAC)，as well as the member of Asia Pacific Laboratory Accreditation Cooperation (APLAC) and Pacific Accreditation Cooperation (PAC) GBPI CNAS Laboratory supply water vapor permeability testing,oxygen transmission rate testing,tensile testing,coefficient of friction testing,leakage testing,heat sealing testing etc.

In the food packaging industry, using a material composition that extends shelf life is a key component to ensuring the safety of the product and preserving the taste of the food. In addition, using packaging material that prolongs a products shelf life can drastically cut down on waste of perishable products, and creates a longer window for grocery stores to stock product before it reaches the hands of the consumer. A great way to achieve this is by using a packaging material that reduces the amount of oxygen that permeates the plastic, such as EVOH. So what is EVOH film and how does it contribute to increasing the shelf life of packaged food products? EVOH stands for Ethylene-vinyl alcohol copolymer and is a flexible, crystal clear, glossy thermoplastic copolymer. This material has excellent flex-crack resistance, and exhibits a high resistance to hydrocarbons, oils and organic solvents. EVOH is known for having some of the best barrier resistance to gases such as oxygen, nitrogen, and carbon dioxide which makes it particularly suited for packaging food, drugs, cosmetics, and other perishable products. When compared to other common films, EVOH is considered to have superior barrier properties. You might be thinking so how to test EVOH oxygen transmission rate.GBPI Oxygen Permeability Analyzer Y110 help you find out the answer.This oxygen permeation tester is our GBPI design for EVOH Barrier film oxygen transmission rate testing,popular for our EVOH Barrier material customers. Advanced technology Temperature control: International advanced electromagnetic technology, program controlled, auto heating and cooling; and no need of external accessories. Precision: 0.1℃. Humidity control: Dual gas flow method(dry gas and humid gas), with broad range, high precision (1%RH) and stable flow. Carrying cutting-edge ARM controlling system, can run independently without computer.

产品的质量和完整性很重要。高水分阻隔薄膜是最有效的保护方式，同时仍能吸引各种商品。 高阻隔膜是一种优质产品，具有以下特点： 防潮膜-这种包装非常适合防潮。防潮膜可以用多层专用膜定制，以防止水分损害您的产品。确保食品和其他粉状物品保持干燥，并具有高阻隔薄膜的防潮保护功能。 隔氧膜–膜的气密安全性通过特殊的涂层设计来防止氧气透过，从而保护您的产品免于透过氧气。隔氧膜旨在保持您产品的风味，气味和颜色。 因此，如何确认您的阻隔膜是高性能的。凭借超过16年的包装测试设备经验，我们的专家团队随时可以帮助您找到满足您需求的完美的高防潮包装。低于GBPI 水蒸气渗透率测试仪W403和氧渗透率测试仪 Y310可以极大地帮助您测量阻隔膜的水蒸气和氧气透过率。