In the fast-evolving packaging industry, particularly for items like beverage labels, shrink wraps for bottles, sausage packaging, and even cigarette boxes, ensuring the optimal shrinkage performance of films is crucial. Films must shrink tightly around products to guarantee both protection and an appealing presentation. This is where precise and reliable film shrinkage testing comes into play. At the forefront of this testing technology is the GBK-D1 Film Shrinkage Performance Tester, designed by Guangzhou Biaoji Instrument. This advanced device provides manufacturers with the ability to accurately test and analyze various shrinkage parameters of packaging films. In this blog, we'll explore the importance of film shrinkage properties, how the GBK-D1 works, and why it’s an essential tool for today’s packaging industry. What Is Film Shrinkage Testing? Film shrinkage testing measures how a plastic film responds when exposed to heat. The process involves the material shrinking tightly around the product, creating a secure fit. This is essential in packaging industries where the film serves not only as a protective layer but also as an aesthetic feature. Films used for packaging are typically made from materials like polyethylene (PE), ethylene copolymers, and blends of these polymers. These materials are chosen for their excellent ability to shrink uniformly when heated. The testing process helps to ensure that the film performs consistently under various environmental conditions, which is key for the overall quality and functionality of the product packaging. Why Shrinkage Properties Matter Shrink films play a critical role in ensuring packaging integrity. Whether it's a beverage bottle label or a sausage wrap, the film must shrink to fit the contours of the product perfectly. If the film doesn't shrink properly, it can result in packaging defects such as wrinkles, loose wraps, or uneven seals. For example: Beverage Packaging: Shrink film ensures that labels conform to bottles without wrinkles, providing a sleek appearance. Food Packaging: Shrink films for sausages, for instance, need to form tightly around the product to preserve freshness and protect it from contaminants. Cosmetics and Pharmaceuticals: For sensitive products, shrink films must maintain a tight seal to protect the contents from damage or contamination. The GBK-D1: A Game-Changer in Film Shrinkage Testing Guangzhou Biaoji Instrument's GBK-D1 Film Shrinkage Performance Tester is a highly advanced tool that addresses the limitations of traditional testing methods, offering comprehensive insights into a film's shrinkage behavior. Here’s what sets it apart: Multi-Parameter Testing While traditional testing methods, like ovens or oil baths, typically measure only the shrinkage rate, the GBK-D1 takes a more detailed approach. It evaluates multiple parameters, such as: Shrinkage Force: Measures the force required for the film to shrink. Shrinkage Rate: Tracks how quickly...

The Application of Water Vapor Permeability Analyzer (WVPA) and Water Vapor Transmission Rate (WVTR) in the Rubber Industry Introduction In the rubber industry, quality control and product performance are paramount. Rubber materials are used in various sectors like automotive, construction, and healthcare, where durability and environmental resistance are crucial. A key property affecting rubber’s performance is its Water Vapor Transmission Rate (WVTR)—the rate at which water vapor permeates through a material. Measuring WVTR helps manufacturers understand how well rubber materials resist moisture. To achieve this, the Water Vapor Permeability Analyzer (WVPA) becomes an essential tool. This article explores the significance of WVTR, the role of WVPA, and how these measurements benefit the rubber industry. Understanding Water Vapor Transmission Rate (WVTR) in Rubber WVTR is a measure of how much water vapor can pass through a material over a specific period. Rubber materials, though generally resistant to water vapor, have varying permeability rates based on their composition and intended use. For instance, tires, seals, and medical devices often require low WVTR to enhance durability and prevent degradation in moist environments. A high WVTR in rubber can lead to accelerated material degradation, especially in humid conditions. This can result in issues like cracking, hardening, or loss of elasticity, which compromise the material’s functionality. Therefore, understanding and controlling WVTR in rubber is essential for ensuring product longevity and reliability. The Role of Water Vapor Permeability Analyzer (WVPA) in Measuring WVTR A WVPA is a specialized instrument designed to accurately measure the WVTR of various materials, including rubber. In the rubber industry, WVPA is used to: Optimize Material Composition: By measuring the WVTR, manufacturers can modify rubber formulations to achieve desired levels of moisture resistance. For example, adding fillers like carbon black can decrease WVTR, making the material more resistant to moisture. The WVPA provides precise data on WVTR, helping manufacturers create materials tailored for specific applications. Quality Control: Regular WVTR testing ensures consistency across production batches. For industries where rubber products must meet stringent performance criteria—like automotive or medical sectors—consistent WVTR is critical. WVPA helps verify that all rubber products maintain the required WVTR values, ensuring high-quality output. Predict Product Lifespan: Understanding WVTR in rubber allows manufacturers to estimate how long a product will last under certain environmental conditions. A low WVTR is often associated with longer product lifespan, as reduced moisture absorption prevents early material degradation. Research and Development: In R&D, WVPA is essential for developing rubber materials with specific WVTR values. By experimenting with different additives...

Keywords: plastic film testing, tensile tester, quality control, mechanical performance testing, single-column electronic tensile tester In today's manufacturing industry, product quality control is of paramount importance. Whether it's plastic films, food packaging, or pharmaceutical packaging, strict quality standards are essential to ensure product safety and reliability. In this context, the GBL-L2 Plastic Film Tensile Tester, as a multifunctional quality inspection device, is gaining favor among numerous manufacturers and research institutions. The Versatility of GBL-L2 The GBL-L2 is a popular single-column electronic tensile tester with impressive versatility. This device can perform not only routine tensile tests but also peeling, heat-sealing, and tearing tests, among various other mechanical performance tests. This multifunctionality makes the GBL-L2 an ideal choice for testing a wide range of metallic and non-metallic materials. Compliance with National Standards A notable advantage is that the GBL-L2 fully meets the requirements of national technical supervision departments for testing technology. This means that test results obtained using the GBL-L2 are authoritative and credible, providing a solid foundation for product quality control. Wide Range of Applications The GBL-L2 has an extremely broad range of applications, including but not limited to: Plastic Film Manufacturing: Testing the tensile strength and extensibility of films. Food Packaging: Ensuring the sealing integrity and durability of packaging materials. Pharmaceutical Industry: Testing the integrity and safety of drug packaging. Quality Control Departments: Conducting routine product quality inspections. Research Institutions: For experiments in materials science and engineering. University Teaching: As an important tool for experimental education. Technical Advantages As a modern testing device, the GBL-L2 has several technical advantages: Precision: Advanced electronic measurement technology ensures high accuracy of test results. Reliability: Stable performance guarantees consistency and reproducibility of tests. Ease of Use: User-friendly interface design makes operation simple and intuitive. Data Processing: Built-in data analysis functions for rapid generation of test reports. Contribution to Quality Control The GBL-L2 plays a crucial role in product development and production processes: Raw Material Inspection: Ensuring raw materials meet specification requirements. Production Process Control: Real-time monitoring of material performance during production. Finished Product Quality Assurance: Final quality verification of finished products. R&D Support: Providing necessary performance data for new product development. Future Outlook As manufacturing industry requirements for quality control continue to rise, high-performance testing equipment like the GBL-L2 will play an increasingly important role. We can anticipate future development trends may include: Highe...

Y310 2.0 Oxygen Transmission Rate Tester Precautions The laboratory temperature affects the experimental results and should be controlled at (23±2)℃. Only one person should be allowed to conduct experiments in every 20㎡ laboratory. Too many people will cause the laboratory temperature to rise, which will affect the experimental data. At the same time, the temperature control and experimental process should not be frequently entered and exited to reduce the impact of changes in the test environment on the experimental data. The sample should not have creases, pinholes, or gaps. It is forbidden to wipe the instrument housing with alcohol cleaners (such as isopropyl alcohol, anhydrous alcohol, alcohol), otherwise it will cause the housing to crack or scratch. It is recommended to clean the sealing grease remaining in the cavity before loading the sample, and then apply a layer of sealing grease to ensure that there is no leakage. Maintenance The voltage of the power supply during operation must meet the value allowed by the equipment, otherwise a voltage regulator greater than 1/3 of the actual power should be set. The current allowable value of the power supply line should be greater than 1/3 of the actual current. The instrument must be well grounded when installed. Keep the instrument test environment temperature at 23℃±2℃ and the humidity at 50±10%. The instrument must be installed on a horizontal, solid, stable, and vibration-free table. There is no airflow interference and no strong electromagnetic interference. 99.999% high-purity nitrogen must be used for experiments, otherwise the sensor will be damaged. When the gas interface on the back of the instrument is empty, it must be sealed with a blind plug, otherwise it will affect the performance of the gas filter. The cavity seal will age after long-term use and affect the sealing effect, and must be replaced in time. After each experiment, you need to wipe the cavity with pure cotton paper or a clean rag to avoid dirt. When the instrument is not in use, keep it clean and dry and cut off the power supply. If the instrument is not used for a long time, it is recommended to rinse it once a week for 8 hours, and place an aluminum film before rinsing. When cleaning the instrument on a daily basis, it is recommended to use a soft cloth dipped in water or a mild detergent to clean the outside of the instrument regularly. Do not allow dust to enter the test chamber, otherwise it may damage the internal circuit or sensor of the instrument, resulting in unstable readings or no readings.

With the development of the economy and the improvement of people's living standards, more and more people have pets. People use pets as a support for their feelings and to meet our emotional needs, corresponding to the rapid development of the pet food industry, the market competition is gradually fierce, the importance of pet food packaging has gradually come to the fore. Cat food / dog food packaging bags selected plastic material should have a barrier, heat resistance, sealing, able to prevent food deterioration. General selection of multi-layer plastic composite, common materials include PET/AL/PE, PET/NY/PE, PET/MPET/PE, PET/AL/PET/PE, PET/NY/AL/PE, PET/NY/AL/RCPP, high-temperature dry distillation bags for wet food, soft canned food packaging. Like other foods, pet food has a shelf life. During the shelf life, pet food needs to ensure that no spoilage or loss of nutrients occurs. Pet food nutrients can meet the needs of pet growth, but also is a good natural medium for microbial growth. If the packaging material has poor barrier properties, the oxygen and moisture that passes through the packaging can lead to the growth of microorganisms. Under the action of microorganisms, the nutrients (proteins, fats, etc.) in the pet food will be decomposed, which not only affects the sensory of the pet food, but also loses the nutritional value of proteins, fats and other original substances. The growth of microorganisms is mainly due to three factors: temperature, oxygen, moisture, oxygen is the main external cause of rancidity, so the pet food packaging must have a good barrier performance to the outside world of oxygen, in order to effectively ensure the quality of pet food in the shelf period. This paper utilizes     GBPI's self-developed N530 2.0 differential pressure gas permeability tester to test the oxygen barrier performance of dog food packaging bags sent by customers to provide technical references for relevant pet food package production and use of enterprises to select the oxygen barrier performance test equipment and test methods. Test Principle: N530 2.0 Gas Transmission Rate Tester adopts the principle of differential pressure method. The treated specimen is placed between the upper and lower chambers, the vacuum pump is used to evacuate the whole gas circuit system, and then an atmospheric pressure of experimental gas is added to the upper chamber to form a constant pressure difference between the upper and lower chambers. Under the action of pressure gradient, the gas permeates through the film from the upper cavity to the lower cavity, and the system can calculate the gas permeability and other barrier performance parameters of the specimen through the pressure change of the lower cavity. 01 Test Sample The customer provided dog food packaging bags, its main component to PA as the main barrier function resin multi-layer co-extruded film, bags, sample A's structure PE / Tie / PA / TIE / PE, sample B's structure f...