Monitoring method for delamination of toothpaste composite hose

Key words: toothpaste; composite hose; delamination; composite strength; peel strength; test significance of XLW (PC) intelligent electronic tensile testing machine: toothpaste is a necessity of people's daily life Now there are a variety of toothpastes on the market, but most of them are packed with hose, and the common ones are all plastic and aluminum plastic composite hose The general structure from the inside to the outside is heat sealing layer / adhesive layer / barrier layer / adhesive layer / printing layer The barrier layer of all plastic is EVOH, and the barrier layer of aluminum plastic is aluminum foil The composite strength of the composite layer has a direct impact on the overall performance of the toothpaste hose, with the effect of 1 + 1 > 2 in mechanical properties and barrier properties If the composite strength is low, it may lead to the separation of composite layer in toothpaste hose during transportation and storage, which may affect the shelf-life quality of toothpaste In addition, if the toothpaste contains lipid essence, the essence will penetrate into the hot seal layer, or even reach the adhesive layer, resulting in the separation of the thermal seal layer from the barrier layer, resulting in the phenomenon of stratification of the toothpaste hose, which will affect the quality of the shelf life while reducing the consumers' expectations for the quality of toothpaste Therefore, in order to ensure the shelf-life quality and consumer impression of toothpaste, it is necessary to monitor the composite strength of toothpaste composite hose Test method: the composite strength of toothpaste composite hose can be evaluated by testing the peel strength of the hose QB / T 2901-2007 "aluminum plastic composite hose for toothpaste" specifies the test method for peel strength of the hose Requirement: cut out the spline with the width of 15 mm and the length of 150 mm Take the left, middle and right three strips along the longitudinal direction of the composite sheet, strip the composite layer and the base material 50 mm in advance along the length direction of the sample, and there shall be no obvious damage on the stripped part Clamp it on the fixture of the tensile machine, use the 90 ° angle, test at the speed of 100 mm / min, and record the stable data Fig 1 test instrument and process of peel strength sample clamping schematic diagram: intelligent electronic tensile testing machine XLW (PC): independently developed and produced by Jinan Languang Electromechanical Technology Co., Ltd The instrument is a professional instrument for testing the composite strength of various composite films, bags and hoses, with a test accuracy of 0.5, which can effectively ensure the accuracy of the test results Prepare samples according to QB / T 2901-2007 Adjust the distance between the instrument clamps to 50 mm, and clamp the sample Set the test parameters, set the test speed to 100 mm / min, and start the test In order to ensure the accuracy of the test results, the invalid head length and invalid tail length can be set to eliminate the unstable data at the beginning and the end of the test XLW (PC) is equipped with professional software and large LCD screen During the test, it can observe the change curve of force value intuitively, judge the peeling process conveniently and effectively, find and record the fluctuation of force value during the test, and provide guidance for the judgment of composite strength Summary: with the continuous progress of production technology, toothpaste products are constantly updated, and the quality and grade are improved At the same time, the packaging materials of toothpaste are constantly updated and upgraded In order to ensure the shelf-life quality of toothpaste and consumer impression, it is necessary to monitor the various performances of toothpaste packaging Labthink Languang has been committed to providing professional testing services and equipment for customers around the world Over the years, it has provided various testing services for toothpaste packaging for customers around the world, such as peel strength, bursting strength, friction coefficient, heat sealing strength test, etc., providing customers with reliable data support and accumulated rich experience For more information about related instruments, you can visit Languang company for specific information or call for consultation Labthink is looking forward to enhancing technical exchanges and cooperation with enterprises and institutions in the industry Copyright notice: the copyright of this article is Jinan Languang Electromechanical Technology Co., Ltd It is forbidden to reprint without permission!