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ACRN News
Resin Degassing: The Vacuum Chamber Guide
Resin degassing is the step that removes air bubbles trapped in an epoxy, polyurethane or silicone resin before it cures. Skip this step and every casting keeps micro-bubbles that are invisible in the mix but perfectly visible, or damaging, once the part has set:...
Cosmetic Tube Weld Testing: The Frequency-Based Test Method in Production
A shampoo tube leaking on the shelf, a pharmaceutical cream tube whose tail splits open at the first squeeze, a food condiment tube weeping in transit: in all three cases, the defect comes from a poorly controlled weld that should have been caught before the product...
Child-Resistant Caps: Why the Test Requires Measuring Both Torque and Angle
A child-resistant cap rests on a mechanical paradox: it must resist a child under 52 months while remaining easy to open for a senior adult. This trade-off plays out in a two-step mechanism whose compliance cannot be verified with a simple torque measurement. Two...
Breakaway Torque and Opening Torque: How the SkillTork+ Measures Both in a Single Test
On a tamper-evident cap (with a tamper-evident ring), opening the cap generates two successive torque peaks: the torque required to break the ring, followed by the torque required to rotate the cap. Virtually all the relationship meters on the market measure just one....
Cap Torque Testing Standards: How to Measure and Control Tightening Torque
Cap torque testing standards define how manufacturers should measure and control this critical parameter. In the packaging industry, the tightening torque of a cap is one of the most critical quality parameters—and yet one of the most overlooked. A cap that is not...
How to Choose Your Leak Testing Equipment? The Complete Guide
Packaging leak-tightness is often the last thing you think about… until the day a product leaks, gets contaminated, or fails quality control. In the cosmetic, pharmaceutical, food & beverage, and chemical packaging industries, ensuring packaging integrity is not...
How can you detect a micro leak in a bottle or tube that is invisible to the naked eye?
In the cosmetic, pharmaceutical, and food packaging sectors, the tightness of packaging plays a fundamental role in the quality and safety of the final product. A bottle or tube may appear to be perfectly compliant during a visual inspection, yet have a micro leak...
A new standard for leak testing in the packaging industry: AgileakFlow
In many industries such as cosmetics, pharmaceuticals, food processing, and chemicals, checking the tightness of packaging is an essential step in ensuring the quality of the final product. ACRN, the French test equipment specialist, is expanding its range with an...
Peel test: weld strength test
Table of ContentsIntroductionWhat is a Peel tester?Definition of Peel testerOperating principleDifference from other test equipmentWhy use a peel tester?Ensuring the quality of weldsCompliance with standards and regulationsRisk and cost reductionThe main applications...