Biodegradation generally refers to the decomposition of microorganisms. Microbial decomposition substances that exist in nature will not cause negative effects on the  environment. The degree of degradation is called degradation index. Biodegradable materials refer to materials that can be completely decomposed by microorganisms (such as bacteria, fungi, algae, etc.) into low-molecular compounds under natural environmental conditions with appropriate and indicative deadlines. Biodegradability is an important property of PBS polyester. At present, the main method for evaluating the biodegradability of plastics in the world is the composting method. Compost contains rich sources of microorganisms, which can macroscopically reflect the biodegradation of plastics in the natural environment to a certain extent. performance. GBPI Compost Degradation Tester can provide compost performance testing of most plastic products on the market. Testing products Test items Testing standard Disposable plastic tableware, Plastic particles disposable plastic straws, Disposable degradable tableware：plastic bags, Biodegradation rate of aerobic composting test GB/T 18006.1 General technical requirements for plastic disposable tableware HJ/T 202 Technical Requirements for Environmental Labeling Products Disposable Tableware  Packaging products and plastic products: 1. Plastic shopping bag, 2. Mulch, 3. Sealing tape, 4. Plastic, Biodegradability EN 13432:2000 Packaging. Requirements for evaluating the recyclability of packaging through synthesis and biodegradation ASTM D 5338 Test method for aerobic biodegradation of plastic materials under composting conditions ASTM D 5510 Improved MITI test (rapid biodegradability) OECD 301C thermal aging degradation plastic operating standard ASTM D 5511 Method for measuring the anaerobic biodegradability of plastics under high-solid anaerobic digestion conditions ASTM D 6954 Test requirements for oxidation and biodegradation of plastics under environmental conditions GB/T 16716.7-2012 Packaging and Packaging Waste Part 7 Biodegradation and Composting GB/T 20197-2006 Definition, classification, marking and degradation performance requirements of degradable plastics GB/T 22047-2008 Determination of the final aerobic biodegradability of plastic materials in the soil-using the method of measuring the required amount in a closed absorption meter or measuring the released carbon dioxide GB/T 19277.1-2011 (IDT ISO 14855-1:2012) Determination of the final aerobic biodegradability and disintegration capacity of materials under controlled composting. The method for measuring the released carbon dioxide is used. Part 1 General method GB/T 2461-1999 Degradable polyethylene film for packaging  Packaging products         and plastic     products: 1. Plastic shopping bag, 2. Mulch, 3. Sealing tape, 4. Plastic, Biodegradability EN 13432:2000 Packaging. Requirements for e...

Importance of compressive strength of packaging bags： Product packaging is prone to stacking cracks and crush damage during transportation and storage. Therefore, the main concern in the field of product testing is the protective effect of packaging. This requires us to formulate a test plan to evaluate the effect of packaging, and continuously improve the design based on the results to achieve the best results-under the premise of meeting product protection: reduce the total cost of product packaging as much as possible, and ensure the hot adhesion of the packaging bag The test is qualified, and the puncture resistance of the packaging bag is improved.It is well known that the packaging bags under stacking will bear a lot of pressure. If the pressure resistance of the packaging is poor, bag breakage is easy to occur. Therefore, it is required that the packaging bag body and the sealing part should have high pressure resistance. This article uses the GBPI compression tester for bag packaging to test the pressure resistance of food packaging bags as an example to introduce the test principle and test process content to everyone. Provide a reference for companies to monitor the pressure resistance of product packaging. Many food factories use inflatable packaging bags. For nitrogen-filled packaging, the food can be placed in a low-oxygen environment, which has the effect of preventing food from oxidative deterioration and mold. However, the gas filled in the packaging has advantages and disadvantages. While protecting the food, it will have a greater impact on the packaging bag when it is squeezed or impacted by external forces, which requires the packaging bag to have higher flexibility. And sealing fastness, so strengthening the test of the pressure resistance of inflatable packaging can effectively reduce the bag breaking rate in the process of stacking and transportation. By simulating the squeezing situation of the test sample stacking, a certain pressure is applied to the sample, and the deformation and leakage of the test sample after being kept under the applied pressure for a certain period of time. In addition, you can also set the pressure value to be applied to the test sample multiple times by testing the maximum pressure, and each setting is increased on the basis of the last force value. After the predetermined number of times is reached, the total deformation of the test sample is detected, etc. Test the compressive resistance of the test sample. compressive strength of packaging bags test process: 5 samples of inflatable packaging bags with intact packaging are randomly selected. Set the test pressure, test time and other parameters. Please note that the pressure cannot be adjusted too high, otherwise it will damage the sensor, it is recommended to adjust to 0.1Mpa first, if the pressure is too low, you can gradually adjust) (1) Take one of the samples and put it between the two test boards of the device, click the test option...

Guangzhou Biaoji Packaging Equipment Co., Ltd. (GBPI) is a professional manufacturer of laboratory testing equipment. It has an elite team with more than 20 research and development experience in the testing industry. The face mask testing machine such as EN14683 BFE test apparatus、paticulate filtration efficiency tester、flame retardant face mask tester and so on developed by our company is well received by customers in the market. GBPI mask consultant takes you to understand the test process and steps of the synthetic blood penetration test instrument for masks. Mask synthetic blood penetration tester Principle: The synthetic blood permeability tester for masks is used to test the resistance of medical masks, disposable masks and other protective masks to the penetration of synthetic blood under different test pressure levels. Standards: GB/T 19083-2010 Technical requirements for medical protective masks 5.6 Synthetic blood penetration barrier performance YY/T0469-2011 Medical surgical mask 5.5 Synthetic blood penetration test ASTMF1862 Test Method for Resistance of Synthetic Blood Permeability of Medical Masks (Fixed Volume of Horizontal Jet at Known Speed) ASTMF2100 Synthetic blood penetration resistance in the performance requirements of medical masks EN14683 Specifies the structure, design, performance requirements and test methods of medical masks Parameters: 1.Spraying distance: 300mm~305mm adjustable 2.Jet speed: 400cm/s-7000cm/s adjustable Features: 1. The sample is specially customized for the fixing device to simulate the actual use of the outlet cover, and the sample is kept in the special experimental area; 2. Constant pressure spray device, which can spray a certain volume of synthetic blood within a controlled time; 3. It can fully simulate the injection speed corresponding to the average human blood pressure 10.6kPa, 16kPa, and 21.3kPa for testing. Testing process: Fix the mask sample on the sample holder of the instrument, and spray the synthetic blood from the nozzle horizontally to the target area of  the sample to be tested at a distance from the center of the sample at the set pressure, and visually inspect it within 10 seconds after removal. Testing steps: 1.Pull down the sample cover of the instrument, clamp the sample on the fixture, and close the sample holder and protective cover after fixing. 2.Set the relevant parameters (spray pressure and spray time), click [feed] to pour the synthetic blood, adjust the height of the nozzle, and press "[Start]. At this time, spray horizontally toward the tested mask behind the positioning target, and hear With a beep, the instrument automatically stops spraying and the experiment is over. 3.After the test is all over, the synthetic blood residue in the test solution tank is cleaned, replaced with distilled water, and the entire pipeline is cleaned. After the nozzle sprays clean water, continue to drain all the clean water in the test solution tank. Close the outlet valve of the ...

The heat sealing testser is a testing instrument researched and produced for packaging heat seal strength testing. The heat sealing testser is mainly used to measure the heat sealing temperature and heat sealing time of plastic film substrates, flexible packaging composite films, coated paper and other heat sealing composite films , Heat sealing pressure and other parameters. Because the equipment is a precision laboratory instrument, it is generally used for laboratory testing applications in packaging material factories, food, medicine, quality inspection institutes, research institutions and other enterprises and institutions. Among the many items of product packaging inspection , the heat-sealing strength inspection of the packaging is an important analysis index to evaluate the sealing strength of the heat-sealed parts. This requires heat sealing tests on the products. If the heat-sealing strength is insufficient, it will cause the package to crack at the heat-sealed place, causing problems such as food and medicine leakage and contamination. Equipment classification According to the design of the heat sealing head, the heat sealing instrument can be divided into a single head heat sealing instrument and a double five-point heat sealing instrument Single head heat sealing instrument Five-point heat sealer The single-head heat-sealing instrument can conduct heat-sealing tests on flexible packaging materials at a set temperature, pressure, and time, so as to quickly and easily find the best heat-sealing process parameters of the material. As the name implies, the equipment head is designed as a single head, the lower head accurately controls the temperature, and can be controlled by the experiment temperature. The temperature control adopts P.I.D temperature control technology, which is accurate in temperature control and fast in temperature rise. The five-point heat sealing instrument can measure the heat sealing parameters of plastic film substrates, flexible packaging composite films, coated paper and other heat sealing composite films at a certain heat sealing speed, heat sealing pressure and five heat sealing temperatures. The melting point, thermal stability, fluidity and thickness of the heat-sealing materials will show different heat-sealing performance, and the sealing process parameters may vary greatly. Using this equipment can accurately and efficiently obtain the best heat sealing performance parameters. The equipment adopts the design of independent temperature control of the upper and lower heads, and the unique five independent temperature control designs of the upper head, which facilitates the high standards of temperature and test efficiency for customers during the test. The heat-sealing strength tester with ASTM F2029 developed and produced by GBPI is mainly suitable for the determination of heat-sealing temperature, heat-sealing time and heat-sealing pressure of materials such as films, composite films, PVC hard shee...

The Leak tester is designed and manufactured in accordance with the relevant regulations of GB/T15171 soft package sealing performance test method. It is suitable for the sealing test of soft package in food, pharmaceutical, daily chemical and other industries. Through the test, it can effectively compare and evaluate the sealing technology and The sealing performance provides a scientific basis for determining the relevant technical requirements. It can also carry out the sealing performance test of the specimen after the drop and pressure test. Key words: seal tester, leak testing machines ,  leak tester, bag leak tester,leak detection equipment . Equipment use: The Leak tester is suitable for the sealing test of packaging parts in food, pharmaceutical, daily chemical and other industries. The test can effectively compare and evaluate the sealing technology and sealing performance of the flexible package, Provide a scientific basis for determining relevant technical requirements. It can also analyze the quality of packaging and sealing. Equipment classification: According to different testing principles of the equipment, the leak tester can be divided into the following three types: 1. Vacuum attenuation method equipment: soft packaging, semi-rigid packaging, hard packaging tightness test 2. Ultrasonic principle equipment: quality analysis of soft bag sealing 3. High-voltage discharge method equipment: filling liquid packaging The Leak tester produced by Guangzhou GBPI complies with the executive standard GB/T 15171-1994, ASTM D3078-2002 (2013) It has the advantages of using compressed air, pneumatic drive; automatic and manual operation; LCD display test parameters.