Labthink Instruments Co., Ltd. [email protected] +86-531-85068566 A Comparison of Oil Bath, Drying Oven, and Air Heating Shrink Film Test Methods Many shrink film types exist (PE, POF, etc.) used for packaging a wide variety of products. Different products require films with specific shrink performance (shrink rate, shrinking force, contracting force) for optimal packaging. Poor shrink performance can lead to loose or crushed products. The most widely used test methods measuring shrink performance are oil bath, drying oven, and air heating. Oil Bath Method Film sample is submerged in hot oil (e.g., silicone oil) at a set temperature. Sample size is measured before and after submersion to determine shrinkage ratio. Not ideal for measuring shrinking or contracting force. Labthink RSY-R2 Film Free Shrink Tester
Open the catalog to page 1Labthink Instruments Co., Ltd. [email protected] +86-531-85068566 Drying Oven Method Film sample is placed in an oven at a set temperature for a set time. Sample size is measured before and after heating to determine shrinkage ratio. Similar to oil bath method, cannot measure shrinking or contracting force. Air Heating Method Film sample is heated by hot air inside a chamber. Measures shrinkage rate, shrinking force, and contracting force. Offers automated measurement and real-time force display. Heating environment differs from other methods, so results may not be comparable. Labthink C631H...
Open the catalog to page 2Labthink Instruments Co., Ltd. [email protected] +86-531-85068566 More packaging material testers adopting various test method are available from Labthink, please visit the website www.labthink.comto learn more! Labthink encourages collaboration with packaging industry companies for quality control!
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