Test method for resistance to sputum in self-supporting bags of frozen products
Abstract : Stand-up pouches are the form of packaging commonly used in sucking frozen products. The anti-caries properties of such packages are important factors affecting the quality of the products they package. Employed herein by Labthink FDT-02 rubbing tester for the production of plastic composite film were standing pouch rubbing test, and after rubbing the sample with turpentine results of an evaluation method by the test procedure, the principle of the device, and parameters The description of the scope of application, etc., can provide a reference for enterprises to monitor the tamper resistance of soft plastic packaging materials. Key words : suction freeze, stand-up pouch, smash resistance, sputum tester, aluminum-plastic composite film, turpentine method, pinhole 1 , meaning As a name suggests, stand-up pouch is a kind of packaging bag that can stand without any support and whether it can be opened or not. This type of packaging has the advantages of improving product grade, enhancing visual effect, carrying light, convenient use, fresh keeping and good sealing performance. And many other advantages, has been used in the packaging of jelly, edible oil, jam, beverage, laundry liquid and other liquid, colloidal, semi-solid products. At present, the common stand-up pouches are mainly five types of ordinary stand-up pouches, self-standing pouches with suction nozzles, self-standing pouches with zippers, self-standing pouches, and self-supporting pouches. The materials used are mainly aluminum-plastic composite film. The self-supporting bag made of aluminum-plastic composite film has high stiffness and good barrier property. However, due to the poor resistance of the aluminum foil layer, the aluminum foil layer is easily broken and pinholes are formed under the action of external force distortion and folding. For aluminum-plastic composite film, the barrier function is mainly aluminum foil layer. If pinholes appear in the aluminum foil layer, the barrier property of the whole material will decrease, the product will deteriorate, and even pinholes will be formed throughout the material to make the package. Loss of barrier properties and product leakage. Therefore, by strengthening the detection of the tamper resistance of the aluminum-plastic composite film, it is possible to effectively prevent the self-standing bag made of the needle-hole at the bottom crease of the bag or other parts of the bag body. Figure 1 various types of stand-up pouches 2 , test basis At present, there is no domestic standard for the relevant performance of soft plastic packaging. The test process is based on the American standard ASTM F392 . 3 , test samples The test sample used in this test is an aluminum-plastic composite film used for sucking the frozen stand-up pouch. 4 , test equipment The test equipment used in this paper is the FDT-02 æ‰æ“ tester independently developed by Jinan Languang Electromechanical Technology Co., Ltd. Figure 2 FDT-02 æ‰æ“ tester 4.1 Test principle This equipment is designed to simulate the soft and plastic packaging material samples during the use of the sputum effect, the horizontal and vertical direction of the sample is carried out, the strength of the æ‰æ“ can be determined by selecting different æ‰æ“ mode (the number of æ‰æ“ different ) . There are two main methods for evaluating the tamper resistance of the sample. One is to determine the barrier properties of the sample before and after the ruthenium. The sample with good tamper resistance has little change in the barrier properties before and after the ruthenium, and the sample with poor stagnation resistance, æ‰æ“The barrier property is much lower than that of the sputum before; the other is to analyze the sputum sample by the turpentine method. If there is a pinhole penetrating the whole sample, turpentine spots will be formed on the white paper, and the number of spots will be The size is compared to obtain the sample's resistance to enthalpy. 4.2 Equipment parameters (1) Film type: It is suitable for testing the anti-cracking performance of plastic film, sheet and composite film, such as various composite film for packaging, aluminized film, aluminum-plastic composite film, nylon film, coating film and the like. (2) Paper: Suitable for the anti-caries performance test of paper materials. (3) Standard: Meet ASTM F392 . 5 , the test process (1) from the surface of the sample for standing pouch clipping rectangular plastic composite film sample 3 of 200 mm × 280 mm. (2) The three samples were wrapped in three pairs of rotary shaft rubbing tester, and the sample is fixed with a clip. (3) Select the appropriate æ‰æ“ mode, this test uses C mode. (4) Start the test and after the set number of turns is reached, the device will automatically stop and take 3 samples. (5) in each cutting-out 150 mm × 200 mm specimens from one of the three sample after kneading. (6) Take a white tile in the test plate, and wherein the sample is a 150 mm × 200 mm was placed on white paper, the prepared surface of the sample repeatedly applied turpentine, stand for one minute After that, take the sample and observe the presence or absence of red spots and spots on the white paper. (7) Repeat (6) operation until all three samples have been tested. 6 , test results More than 4 spots of different diameters ranging from 3 mm to 5 mm appeared on all three white papers. This indicates that penetrating pinholes appeared on the surface of the sample under the action of C mode , which was tested in this test. The sample is less resistant to tampering. 7 , conclusion The sturdy resistance of the aluminum-plastic composite film used in the production of the stand-up pouch is an extremely important performance index. The value of the index determines the barrier property of the self-supporting pouch after being subjected to external force during use. In this test, the FDT-02 æ‰æ“ tester was used to test the sample in the C mode. The pinholes formed on the surface of the sample were verified by the turpentine method. The test procedure is simple, the equipment is easy to operate, and the test results are easy to count. It is a simple and easy test method for the resistance test of soft plastic packaging materials. Labthink is a high-tech enterprise specializing in R&D and production of packaging testing equipment. In addition to the helium tester involved in this article, Labthink also includes gas permeability tester, oxygen permeability tester and water vapor. Through the tester, intelligent electronic tensile testing machine, friction coefficient meter, head air body analyzer, atomization tester, torque meter, heat seal tester, evaporation residue constant weight instrument and other testing equipment, to understand the relevant information of the equipment Jinan Languang . The more you understand, the more you trust! Jinan Languang Electromechanical Technology Co., Ltd. is looking forward to enhancing technical exchanges and cooperation with enterprises and institutions in the industry! Fruit juice drinks is a beverage made of fruit juice products obtained by physical methods such as pressing, centrifugation and extraction. Fruit juice retains most of the nutrients in the fruit, such as vitamins, minerals, sugar and pectin in dietary fiber. Often drinking fruit juice can help digestion, moisten the intestines and supplement the lack of nutrients in the diet. Juice Drinks,Honey Tea,Honey Citron Tea,Goji Berry Juice Xi'an Gawen Biotechnology Co., Ltd , https://www.seoagolyn.com
There are two kinds of fruit juice: pure fruit juice and compound fruit juice. As far as pure fruit juice is concerned, it can be divided into two types: one is to directly use the original juice, and the other is to dehydrate the freshly squeezed fruit juice first, and then add water to reduce it into concentrated fruit juice. Most pure fruit juices are concentrated. AGOLYN offers various flavors of honey tea, such as honey Citron tea etc.