Labthink Instruments Co., Ltd. [email protected] +86-531-85068566 Testing Packaging Barrier Performance for Crispy Snacks Crispy snacks are a universally loved treat, and they come in a vast array of forms. The satisfying snap of a potato chip, the airy pop of popcorn, the salty bite of a pretzel – these are the hallmarks of a beloved crispy snack. Maintaining crispy snack perfection from factory to consumer relies on precise packaging and quality control. Crispy snacks are vulnerable to moisture and oxygen. Moisture turns them soggy, oxygen renders them rancid, and physical pressure crushes them into crumbs. Thus, the packaging must act as an impenetrable shield, safeguarding the snack's integrity. This means the packaging must protect the snacks from factors like moisture, oxygen, and physical damage. Crispy snack packaging commonly utilizes multi-layered films like MET PET/BOPP for light and oxygen barriers, and PE for moisture protection. EVOH and aluminum foil provide superior defense for sensitive snacks. Stand-up pouches offer convenience using these films, while coated paper serves niche applications. To guarantee packaging protects the snack's crunch, rigorous testing is essential. Barrier Testing involves precise measurement of moisture vapor transmission rate (MVTR) and 1
Open the catalog to page 1Labthink Instruments Co., Ltd. [email protected] +86-531-85068566 oxygen transmission rate (OTR) through the packaging material, utilizing specialized chambers and sensors. These simulations replicate real-world storage conditions, quantifying how effectively the packaging resists moisture and oxygen ingress, crucial factors in preventing sogginess and rancidity. Subsequent tests include seal strength test which ensures robust seams to prevent leaks and maintain airtightness and tensile strength test measuring tear resistance for transport durability. Labthink C403H Oxygen /Water Vapor Transmission...
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