Heat Shrinkage Testing for BOPP Cigarette Film
Heat shrinkage testing for BOPP film is mainly used for the evaluation of heat stability under different conditions or different factors. For rigid cigarette package, such rigid package has good support effect, around which high shrinkage film can be applied so as to achieve even and beautiful visual effects. Therefore, rigid package requires the heat shrinkage of BOPP cigarette film to be up to 8% to 12%.
But, deformation cause by high shrinkage rate is a problem for ordinary flexible cigarette package. Generally, the shrinkage rate is controlled within 3%-7%. For heat shrinkage testing of BOPP cigarette film, ASTM D 2732 is applied. Take Labthink PARAM RSY-R2 Film Free Shrink Tester as an example; mark the vertical and crosswise lines on the specimen with clear indication of direction. Put the specimen in between the frame, and immediately emerge into 120±2C constant temperature medium for 20 seconds. Then, emerge the specimen into the prepared normal temperature bath for 5 seconds, and take it out. Lay horizontally and measure the vertical and crosswise size within 30 minutes. The measurement should be with accuracy up to 1 mm. At present, some companies heats 1 minute, 5 minutes or other conditions under 120C with different testing results.
For more details and whole quality control project for BOPP Films, please feel free to contact Shirley Wu via trade2@labthink.cn or (tel)0086-531-85061080.
More about Labthink:
Labthink, focusing on laboratory testing instrument R&D, production and laboratory IT services as the core business, is dedicated to provide perfect and professional product quality control solutions for customers in packaging, food, pharmaceutical, medical, daily chemistry, printing, adhesive, automotive, petrochemistry, bioscience, construction, new energy and other industries.
Labthink is an international enterprise headquartered in Jinan, China with administrative, sales and service institutions in Shanghai, Guangzhou and Brussels as well as other over 40 countries and regions.
Labthink, as a knowledge-base enterprise, advocates scientific research and combines production with IT services. Labthink is devoted to share the most excellent testing technologies and the most advanced IT achievements with customers worldwide. Labthink instruments are now operating in more than 5000 laboratories of authoritative institutions and renowned enterprises. Labthink IT service, with the innovative online cloud computing information management mode, promotes the informationization trend of Laboratories!
Labthink, as a customer-focused enterprise, has a perfect service system. Labthink Global Customer Service Center can provide customers with professional, prompt and sustained pre-sale, point-of-sale and after-sale services in Chinese, English, French, Spanish, Portuguese, Russian, Arabic and other languages. Labthink Global Customization Center provides tailor-made professional solutions for customers.
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