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.

Quality control (QC) testing for barrier films during the converting process is crucial to ensure they meet performance specifications. Here's a condensed overview of QC testing stages: Raw Material Inspection: Verify resin quality and absence of impurities before production begins. Thickness and Uniformity: Use micrometers or laser gauges to measure film thickness, ensuring consistency. Optical Quality: Assess clarity, gloss, and haze to ensure visual properties are within specifications. Barrier Properties: Oxygen Transmission Rate (OTR): Test with OTR meters to ensure low oxygen permeability. Water Vapor Transmission Rate (WVTR): Use WVTR meters to confirm moisture barrier effectiveness. Mechanical Properties: Tensile Strength and Elongation: Determine film strength and stretchability. Puncture Resistance: Test resistance to tearing or breaking. Seal Integrity: Evaluate the strength and uniformity of seals, if applicable. Surface Energy: Verify surface properties for adequate ink adhesion in printing processes. Lamination Bond Strength: For laminated films, check the adhesion between layers. Dart Drop Impact Test: Assess impact resistance by dropping a dart from a set height. Aging Tests: Simulate storage conditions to predict long-term barrier performance. These tests are interspersed at critical points, such as post-extrusion, post-lamination, after printing, and on the final product. Consistent QC ensures the barrier film maintains its protective functions, adheres to industry standards, and meets customer requirements.

Different manufacturing processes of plastic films lead to differences in the surface morphology of the product, which usually affects the smoothness of film when it passes through machines and equipment. Effectively control the coefficient of friction（COF) of packaging films to improve production line efficiency. coefficient of friction（COF) has always been a major difficulty in the flexible packaging industry. The coefficient of friction (COF) of packaging film production processes is an issue that film manufacturers and distributors have to grapple with every day. In order to solve this problem, film manufacturers usually use additives in the film manufacturing process to further improve the film manufacturing process, thereby controlling the friction coefficient of flexible packaging and minimizing the impact of this adverse factor.  Click here to know more about Coefficient of friction tester Coefficient of friction tester(COF tester) is used to measure the coefficient of friction of plastic films, sheets, paper and other materials when they slide on the surface of itself or other materials. It is used in quality inspection, drug inspection, scientific research, packaging, film, food, medicine, daily chemical and other industries. In order to detect changes in friction coefficient of materials under various conditions, packaging film manufacturers generally use professional friction coefficient testers as a means of detection and control.   standards:  ASTM D1894-2014, ISO 8295-2004, TAPPI 816 Therefore, it is the time for film manufacturers to find the best way to control the coefficient of friction so that direct users and end users can obtain high-quality products with large output and few failures that can continue to operate, and tailor solutions according to customer needs and actual applications. problems that need to be faced. 

Abstract Pet food is food specially provided for pets and small animals. It is a high-end animal food between human food and traditional livestock and poultry feed. Its main nutrients are protein and fat. Under the influence of a certain temperature, oxygen and moisture, it is easy to absorb moisture and agglomerate or be oxidized and decomposed by microorganisms, resulting in the loss of nutrients and even deterioration. Therefore, pet food packaging is required to have better barrier properties. GBPI uses the N530 2.0 gas transmission rate tester complied with ASTM D1434, ISO 15105-1, ISO 2556, JIS K7126-1 to test the oxygen transmission rate of dog food packaging bags sent by customers . this machine was independently developed by GBPI R&D Team. Click to See GBPI N530 2.0 Gas Transmission Rate Tester Testing Principle GBPI N530 2.0 gas transmission rate tester comply with the principle of differential pressure method. Place the processed sample between the upper and lower chambers, use a vacuum pump to evacuate the entire gas system, and then add an atmospheric pressure experimental gas to the upper chamber to form a constant pressure difference between the upper and lower chambers. Under the action of the pressure gradient, gas penetrates from the upper chamber to the lower chamber through the film. The system can calculate the gas permeability and other barrier performance parameters of the sample through the pressure changes in the lower chamber. Prepare Test Sample The dog food packaging bags provided by the customer are multi-layer co-extruded films and bags which are with PA as the main barrier function resin. The structure of sample A is PE/Tie/PA/TIE/PE, and the structure of sample B is PA/Tie/ PE/TIE/PA/Tie/PE. Testing Process (1) Cut the sample: Place the clean and pollution-free sample to be tested on the cutting table, and use a special sample cutter to cut the test sample. (2) Sample loading: Press the button to open the pneumatic chamber cover, apply a ring of sealing grease evenly on the cavity, place the filter paper in the middle of the cavity, and then place the cut sample on the cavity coated with sealing grease, then close the test chamber cover. (3) Open the control software and set experimental parameters such as test pressure and temperature. (4) In the software operation setting interface, select the measurement mode and fill in the test sample name, detection standard, test unit and other experimental information. (5) Start the test. (6) After the test is completed, the instrument pops up a prompt message indicating that the test has been completed, and automatically calculates and displays the test results. Test Results The oxygen transmission rate test results of this dog food packaging bag are: Sample A: 39.9 cm3/(m2·24h·0.1MPa), Sample B: 15.8cm3/(m2·24h·0.1MPa). Conclusion In order to ensure the quality of pet food and extend the shelf life of pet food, it is very necessary to test the oxygen transmi...

Every two years, PACK EXPO Las Vegas brings together packaging and processing solutions suppliers and end users from 40+ vertical industries. Exhibitors launch products, showcase their latest innovations and problem-solve with customers. Attendees explore thousands of packaging and processing technologies on display and discover game-changing solutions to their packaging and processing challenges. Be there! PACK EXPO | Las Vegas Packaging Trade Show, is a wrap! The GBPI team is very grateful to our customers for having conversation with us! Thanks so much for  taking your valuable time and support to GBPI. We will be happy to provide you with quality product testing services and laboratory series instrument solutions. Please feel free to contact us with any questions or further cooperation.