Inspection method of opening force and torque of bottle cap for drug packaging

Abstract: the opening torque is one of the important properties of drugs in bottle or hose Taking the opening torque test process of medical glass bottle as an example, this paper describes the test method of the opening torque of the bottle cap, and introduces the Labthink Languang njy-20 involved in the test The scope of application, parameter information and other contents of the torque meter are introduced, which is helpful for enterprises to understand the test process and related detection principles of the opening torque, so as to provide reference for enterprises to monitor the opening performance of related products Key words: glass bottle, plastic bottle, hose, packaging container, bottle cap, opening torque, torque meter, medicine 1, meaning the opening torque of bottle cap refers to the torque value required for opening the bottle cap, which is a physical quantity indicating the difficulty of opening the bottle cap The value of opening torque has an important impact on the transportation, storage period quality, Zui final consumption and other links of container drugs Therefore, it has also become one of the key process parameters for off-line or on-line control of drug manufacturers If the opening torque value of the bottle cap is low, it will bring certain risks to the sealing performance of the package, and it is easy to have problems such as air leakage and liquid leakage, which will affect the efficacy of the drug within the shelf life; if the opening torque value of the bottle cap is too large, it will increase the difficulty of opening the package, and it is necessary to open the package with other external forces, which not only increases the difficulty of using by consumers, but also may cause the opening of the package Accidents such as hand scratch caused by unpacking Therefore, it is of great significance to control the appropriate opening torque of the cap Fig 1 common medical packaging containers 2 The inspection standards related to the opening torque of the cap are BB / T 0025-2004 30 / 25mm plastic anti-theft cap, BB / T 0034-2006 aluminum anti counterfeiting cap, GB / T 17876-2010 plastic anti-theft cap of packaging containers, etc This paper is the "opening performance test" in the reference standard BB / T 0034-2006 aluminum anti counterfeiting cap“ The test is carried out according to clause 3 Test sample: glass bottle with cover (aluminum) for packaging of certain brand of medicine 4 In this paper, njy-20 torque meter developed by Jinan Languang Electromechanical Technology Co., Ltd is used to test the samples Fig 2 application scope of njy-20 torque meter 4.1 bottled container: it is applicable to the torque value test of bottle cap locking and opening of bottled drugs and food, such as medicine bottle, beverage bottle, etc Hose packaging products: it is applicable to the torque value test of locking and opening the cap of hose packaging food, medicine, cosmetics, etc., such as eyedropper, hand cream, shoe polish (threaded connection), etc Extended application: applicable to the torque value test of nut and bolt locking and opening, or the torque value test of thermos bottle and thermos cup (threaded connection) cap locking and opening Standard: This equipment can meet many national and international standards, such as GB / T 17876, ASTM D 2063, ASTM d3198, ASTM d3474, BB / T 0025, BB / T 0034, etc 4.2 there are three specifications of equipment parameters: 20 N · m, 40 n · m and 50 N · M the test accuracy is level 1, and the resolution of the system is 0.001 n · M The clamping range of the sample of the equipment is Φ 5 mm ~ Φ 170 mm The equipment provides two test modes of opening force and locking force The test peak value is automatically maintained to ensure that the test results are accurately recorded The intelligent configuration of overload protection, automatic clearing and fault prompt ensures the operation safety of users Support Lystem TM laboratory data sharing system, and manage test results and test reports in a unified way 5 During the test (1) turn on the power switch of the torque meter, set the test mode, statistical quantity and other parameter information (2) Place the sample on the fixture and clamp it (3) Click the test option, loosen the cap by hand, and the instrument will automatically test the Zui large torque value of the sample in the process of cap unscrewing, which will be displayed as the opening torque of the sample Fig 3 test process 6 Test results five samples were tested in this paper The opening torques of five samples were 0.964 n · m, 0.910 n · m, 0.937 n · m, 0.976 n · m and 0.961 n · m respectively 7 Conclusion the opening torque of the bottle cap is very related to the quality and convenience of the product Nyj-20 torque meter is a special equipment which is used to lock and open the cap It has high measuring accuracy and good stability It is an indispensable testing equipment in the production process This equipment is not only used for the testing of bottle caps for drug packaging, but also suitable for food, cosmetics, chemicals and other fields, with a wide range of applications Labthink Languang is always committed to providing professional packaging testing equipment and services for global customers The testing equipment and services cover the performance indicators of packaging barrier performance, mechanical performance, health performance, etc you can log in Jinan Languang company to view relevant information or call for consultation The more you understand, the more you trust! 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