Sealing Integrity Testing and Cap Torque Strength Testing of Stand-up Package with Spout

In recent years, stand-up package with spout, owing to its multiple open-close cap, low material consumption, high printing standard, low costs in logistics and low disposal quantity, has become a popular kind of packaging. The sealing performance and torque strength of stand-up package with spout would directly influence the product shelf-life and its properness for usage. Hereafter, we would introduce sealing performance testing of the package and open easiness testing of its cap with the help of Labthink leak tester and torque tester.
 

1. The Sealing Integrity Testing of Stand-up Packaging with Spout

MFY-01 Leak Tester

The sealing integrity of stand-up packaging with spout refers to the reliability of the packaging’s sealing performance. This test can help evaluate sealing integration of the whole package, so as to avoid leakage, contamination or deterioration caused by inferior sealing performance. There are several testing methods for sealing performance, for which, leak tester is the most common means. Labthink MFY-01 Leak Tester applies vacuum method to maintain 0.5 minute intervals at -30kpa, -50kpa, -70kpa and -90kpa respectively. As to vacuum package, revival is observed after testing. The above-mentioned method is by visual observation, and is a qualitative testing method. As to the leak and seal strength performance testing for stand-up package with spout, instrument of positive method can be used, such as Labthink LSSD-01 Leak and Seal Strength Tester.
 

2. Torque Strength Testing for the Cap of Stand-up Packaging with Spout

The cap torque strength for open and close stand-up package with spout is an important index for manufacturers for online and offline observation. Properness of the cap torque strength would greatly influence transportation and consumption. Labthink NJY-20 Torque Tester is monitored by mini-computer to realize dual testing modes for lock force and open easiness. The instrument is easy to operate with human-friendly interface. It can keep peak value automatically, display in multiple units, and carry out statistical analysis. Labthink NJY-20 Torque Tester is precise in measurement and stable in performance. It’s a necessity for production.

When sealing performance of the package and torque strength of the cap are qualified, other indexes, including sealing strength and barrier property/permeation, should be evaluated, so as to guarantee shelf-life and properness for usage. For more information, please visit www.labthinkinternational.com.cn

Cap/Closure Torque Strength Testing for Beverage Bottles

Mineral water, carbonated soft drink and alcoholic beverage is usually packaged in a variety of sizes of plastic (PET) bottles and it is essential that the caps on their bottles are easy to open, while at the same time applied tightly enough to ensure the bottles do not leak.

To guarantee the quality of their packaging, manufacturers of beverage should test their bottles compliance with domestic and international standards.

International Standards 

• ASTM D2063 -- Standard Test Methods for Measurement of Torque Retention for Packages with Continuous Thread Closures Using Non-Automated (Manual) Torque Testing Equipment
• ASTM D3198 -- Standard Test Method for Application and Removal Torque of Threaded or Lug Style Closures
• ASTM D3474 -- Standard Practice for Calibration and Use of Torque Meters Used in Packaging Applications

Apparatus
We recommend Labthink NJY-20 Digital Torque Tester for this torque strength testing of bottle caps. The easy-to-use 20N.m capacity Torque Tester has proven to be a good choice for open force and close force of bottle capes.

Labthink NJY-20 is a precision instrument that measures OPEN and CLOSE torque strength for bottlers, food and beverage companies, and others who need to measure closure torque.

1. Its portable design make NJY-20 can be placed on the production line or into the laboratory
2. Peek Value real-time display on the LCD screen 
3. Special design and precise sensor make sure the accuracy test results (up to 1% of reading) and high resolution 0.001Nm

For more information about Torque Strength Testing of Bottles caps, please contact us via trade5@labthink.cn or call us on 86-531-85060139