Physical and mechanical properties test of cosmetics packaging and packaging materials

Abstract: the physical and mechanical properties of cosmetic packaging play an important role in the packaging, transportation and shelf life of cosmetics Its quality directly determines the safety of food in circulation All inspection items of packaging materials are summarized, including: tensile strength and elongation, peel strength of composite film, heat sealing strength, sealing and leakage, impact resistance, material surface smoothness, etc Key words: tensile strength and elongation, peeling strength of composite film, heat sealing strength, sealing and leakage, impact resistance, smooth surface of materials, physical and mechanical properties of cosmetic packaging play an important role in the packaging, transportation and shelf life of cosmetics Its quality directly determines the safety of food in circulation All inspection items of packaging materials are summarized, including: tensile strength and elongation, peel strength of composite film, heat sealing strength, sealing and leakage, impact resistance, material surface smoothness, etc 1 Tensile strength and elongation, peel strength, heat sealing strength and tear performance tensile strength refer to the large stress value of Zui that the material bears before breaking Through detection, it can effectively solve the packaging damage and fracture caused by external force because the mechanical strength of the selected packaging material is not enough Peel strength, also known as composite strength or composite fastness, is to detect the bonding strength between layers in composite films If the adhesive strength is too low, it is easy to cause the leakage caused by the interlayer separation in the use of packaging Heat sealing strength, also known as heat sealing strength, is to detect the strength of sealing Once the heat sealing strength is too low in the process of product storage and transportation, it will lead to problems such as cracking at the heat sealing place, leakage of contents, etc In order to test the above indexes, it is necessary to use the tensile testing machine for inspection Take the XLW (PC) intelligent electronic tensile test of Labthink blue light as an example, prepare the samples according to the corresponding test standards of different inspection items, place the prepared samples in the upper and lower clamps of the tensile testing machine, set the test speed of 300 mm / min (the tensile test can also be set to 500 mm / min), and start the test Test results are calculated XLW (PC) intelligent electronic tensile testing machine can complete the standard test only by selecting different test items with functional menu In addition, for the test of heat sealing strength, it is necessary to use "hst-h3 heat sealing tester" for sample preparation, which is also one of the commonly used equipment in cosmetics packaging laboratory 2 Impact resistance test the control of impact resistance of packaging materials can prevent the damage of packaging surface caused by the lack of toughness of materials, and effectively avoid the damage caused by the poor impact resistance or drop performance of packaging materials in the circulation link Generally, dart impact tester is used for detection Taking bmc-b1 falling dart impact tester of Labthink blue light as an example, the falling dart impact tester determines the impact resistance of plastic film by free falling dart method This is a fast and simple test method used by most cosmetic packaging manufacturers and cosmetic manufacturers to test the energy required to tear the film sample under the specified free falling dart impact conditions When 50% of the film sample is damaged under the specified conditions, the energy of package damage 3 The friction coefficient of the material is an important index to evaluate the smoothness of the material inside and outside Through testing to ensure that it has a good opening or in high-speed production line can be successfully transported and packed Generally, the friction coefficient instrument is used to measure the friction coefficient according to gb10006 Take the mxd-02 friction coefficient instrument of Labthink blue light as an example 1) first adjust the sample according to the standard, and fix the test surface of one sample upward and flat on the horizontal test bench The length direction of the specimen and the test bench shall be parallel 2) place the test surface (63 mm × 63 mm) of the other specimen downward, wrap the slider, and fix the specimen on the front and upper surface of the slider with adhesive tape 3) place the sliding block fixed with the specimen in the center of the first specimen (separator) without impact, and make the test direction of the two specimens parallel to the sliding direction and the force measuring system just free of force 4) start the instrument to make the two samples move relative to test the dynamic and static friction coefficients   Jinan Languang mechanical and Electrical Technology Co., Ltd is a high-tech enterprise specializing in the R & D and production of packaging testing equipment and packaging testing services The existing equipment can be used to test and research almost all the performance indicators of different types of packaging materials, such as barrier performance, mechanical performance, health performance, etc to understand the relevant testing equipment and testing service information, you can log on to Jinan Languang mechanical and Electrical Technology Co., Ltd Technology Co., Ltd stands for specific information or calls for consultation The more you understand, the more you trust! 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