The heat shrinkage rate of the beer packaging heat shrinkable film refers to the change rate of the film size under a certain temperature condition and time, and has an influence on the size, shape and aesthetics of the package. The suitable shrinkage ratio of the heat shrinkable film of the beer packaging can make the packaging compact, and the process is not loose and not deformed. How to detect the heat shrinkage rate of beer packaging heat shrinkable film has become the focus of attention of manufacturers, quality inspection departments and scientific research institutions.
Heat shrinkable film heat shrinkage tester
Abstract: This paper mainly introduces the heat shrinkable film heat shrinkage tester RSY-03 produced by Jinan Sanquan Zhongshi Experimental Instrument Co., Ltd. to detect the heat shrinkage and shrinkage index of beer packaging heat shrinkable film.
First, the significance of testing the heat shrinkage rate of beer packaging heat shrinkable film
PE heat shrinkable film is a kind of packaging form commonly used in beer and beverage packaging. It is suitable for high-speed automatic production, good sealing performance, tight shrinkage, high strength, unloading and no deformation during handling, especially suitable for heavy packaging. The shrink film is wrapped around the product or the package, and the shrink film is wrapped around the product or the package by heating to fully display the appearance of the article, improve the product's marketing performance, and increase the appearance and value. Therefore, the detection of heat shrinkage rate of beer packaging heat shrinkable film is the focus of beer manufacturers.
Second, beer packaging heat shrinkable film heating shrinkage testing equipment
The heat shrinkable film heat shrinkage tester RSY-03 produced by Jinan Sanquan Zhongshi Experimental Instrument Co., Ltd. is also called plastic film heat shrinkage tester. The instrument adopts digital PID temperature control technology, equipped with high precision circuit processing technology and instrument structure design. Compact, beautiful in appearance, light and easy to handle.
Beer packaging heat shrink film image source network
Third, the heat shrinkable film heating shrinkage tester experimental principle
The heat shrinkable film heat shrinkage tester accurately controls the temperature of the heat carrier oil in the heating tank, cuts the sample into a certain size, and puts it into a certain amount in the heating tank. After the time is reached, the sample is taken out, and after cooling to room temperature, the sample is taken. The size of the heat shrinkage rate is calculated.
Fourth, the experimental implementation standards
GB/T 13519, ASTM D2732
V. Beer packaging heat shrinkable film heating shrinkage test device
1. Constant temperature bath: used to hold liquid heat transfer medium, the volume should be enough to accommodate the film frame.
2. Liquid heat transfer medium: The choice of heat transfer medium is based on the principle of no influence on the sample. Glycerin is generally used.
3. Frame: Two frames with metal mesh embedded, slightly larger than the specimen. The distance between the two metal meshes is 1 to 3 mm, which should not affect the free shrinkage of the sample.
Six, beer packaging heat shrinkable film heating shrinkage test steps
1 Mark a symmetry axis in the longitudinal and lateral directions of the specimen, and mark the vertical and horizontal directions.
2 Place the sample flat between the two frames, then quickly immerse it in a constant temperature medium of 120±2°C (the heat transfer medium is usually glycerin), shrink it freely, take it out after 20S, immerse it in a spare room temperature bath, and take it out after cooling for 5s. Sample, horizontally rest, measure the vertical and horizontal axis of symmetry within 30 minutes.
3 Accurate to 1mm and record the measurement data.
The above is a partial analysis of the experimental scheme of the heat shrinkage rate of the beer packaging heat shrinkable film summarized by Sanquan Zhongshi. For more details, please refer to Sanquan Zhongshi, or you can send the sample to Sanquan Zhongshi Laboratory for your testing needs. We will provide all-round. Testing program. About beer packaging testing equipment Jinan Sanquan Zhongshi Experimental Instrument Co., Ltd. also produces carton compression machine, packaging compressive strength tester, label adhesive tester, heat shrinkable packaging film thickness gauge, packaging film puncture tester and other equipment .
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