As a routine consumer goods, dairy products play an important role in people's lives. With the improvement of quality of life, consumers are becoming more and more critical. Many dairy manufacturers are constantly introducing new products to meet the needs of consumers while introducing new products. Dairy products are packed to meet the demand. Today, aseptic dairy packaging, fresh dairy packaging, retort resistant dairy packaging, as well as square box, roof, soft plastic packaging, bottled, etc., the flexible packaging of dairy products has its unique advantages. The proportion of the entire dairy packaging industry is growing, and the quality control of flexible packaging products is becoming more and more prominent. The following is an introduction to the quality inspection and analysis techniques for dairy flexible packaging products. Details.
I. Detection and analysis of composite strength of dairy soft packaging materials
The soft packaging of dairy products on the market, such as sterile pillows, mostly as composite plastics, composite paper. The higher the composite strength, the better, the tear-resistant or destructive zui is ideal, and the high viscosity and value can prevent the composite layer from detaching. After the composite material is processed into a bag, it is exposed to harsh environments or affected by moisture and chemical components, and the composite layer is likely to cause damage. The use of high viscosity adhesives will undoubtedly achieve high quality compounding, but production costs will increase. It can not only achieve the required compounding, but also save costs. This requires the detection and analysis of the quality of the composite layer in order to find the appropriate composite technical indicators. At present, there are peeling tests for both domestic and imported tensile machines, but they are all general-purpose, simple force calculations. Jinan Languang's PC-type intelligent electronic tensile testing machine is professionally used in the flexible packaging industry test. It fully complies with the GB 8808-88 soft composite stripping test, the unique hoe-tailing function, and uses the integral method to find the value in the middle section; Accurately display the force value and curve in real time, determine the use of the adhesive according to the measured force value; understand the uniformity of the composite according to the fluctuation of the displayed curve; analyze the stability of the sample by the curve superposition; According to this, the production process and compound parameters are adjusted.
Second, the detection and analysis of the friction coefficient of dairy soft packaging materials
The test of the friction coefficient of the packaging material can control and adjust the opening quality of the flexible packaging bag, the packaging speed of the packaging machine and other production quality process indicators. At present, the equipment manufactured in China has been in line with the international standards, and has a unique oscillating coefficient setting to suit different materials of film and paper, intelligent data processing, effectively judge the confidence of the results of this group of samples, large-screen LCD real-time display curve, Visually determine the uniformity of the surface friction coefficient of the material. For manufacturers of packaging materials, the coefficient of friction is controlled by testing the type and amount of opening agent and slip agent in the resin. For the use of packaging materials manufacturers can effectively control the quality of raw materials. At present, the friction coefficient of dairy packaging is different because of the currently enforceable standards. For example, the differences in testing conditions between GB10006, ASTM D1894, ISO8295 and other standards have caused enterprises to encounter many difficulties in the friction coefficient of packaging materials. , Labthink Languang's MXD-02 machine has a number of standard detection functions, which is an excellent solution to the problems caused by different standards in the testing.
Third, the detection and analysis of the permeability and moisture permeability of dairy packaging materials
The study of the breathability and moisture permeability of dairy packaging materials is particularly important in the dairy industry, which directly affects the quality of the product. Internationally, such as the United States Membrane, Danish PBI, Labthink Languang's PERME OX2/230 oxygen transmission rate test system can measure this indicator. Labthink's PERME OX2/230 oxygen transmission rate test system uses the Coulomb principle to test the oxygen permeability of packaging containers for bottles, bags, cans, etc. of dairy flexible packaging films, sheet materials and dairy products. The instrument has advanced functions and precision to the international advanced level. It adopts host and satellite mode. One host can connect nine satellites, which can simultaneously test 30 samples, greatly improving the efficiency of testing.
Fourth, the detection and analysis of the heat seal strength of dairy product flexible packaging
Heat sealing strength is an important performance index for packaging materials. For any kind of flexible packaging materials, packaging bags should be used to package various commodities, and packaging products should be sealed by heat sealing. The seal of the dairy product packaging must have a certain strength to withstand the weight of the contents of a certain weight, to ensure that the goods do not crack during the circulation. The PC type intelligent electronic tensile testing machine can professionally complete this test, and the device automatically reads the data, automatically judges the force value, and can perform superposition analysis on the same group of samples. In addition, the sealing strength of the laboratory (also known as the heat sealing strength test) is also required to prepare the heat seal sample by means of a heat seal tester.
V. Sealing test analysis of dairy product packaging
V. Sealing test analysis of dairy product packaging
The tightness of flexible packaging is also an important performance indicator, especially in the dairy packaging industry. Sealing has a great impact on the quality of the product. Poor sealing is the main cause of leakage and corruption in the future. There are many methods for sealing test. The common method used by Zui is to use the sealing tester, using the vacuum principle, and keep it at -30kpa, -50kpa, -70kpa, -90kpa for 0.5 minutes according to national standards. And the leakage of the sample during vacuum maintenance, observe whether there is continuous bubble generation, when the isolated bubble is not considered as leakage. The quality of the package is measured by the measurement of the sealing property, and the rationality of the sealing process is determined.
Of course, the above method is based on the principle of visual inspection, which is a qualitative test method; if you want to quantitatively test the sealing and leakage performance of the package, you can use the positive pressure method to seal the performance test equipment, such as labthink LSSD-01 leakage. Quantitative testing is performed with a seal strength tester.
Sixth, other quality inspection analysis of dairy packaging
The ultimate goal of dairy packaging is to promote sales. The beautifully printed dairy packaging will undoubtedly attract consumers' attention and expand market share. Density, density difference, color, color difference, overprint ratio of dairy packaged prints, printing contrast can be measured by American X-Rite company spectrodensitometer; and for ink layer packaging printing ink layer bonding fastness or printing ink resistance The detection of grinding performance can be carried out by using the MCJ-01A friction tester and the BLJ-02 disc peeling tester of Labthink, in order to control the printing and color quality control of the printed matter.
The above-mentioned analysis of the detection indexes of soft packaging of dairy products is essential in the actual production to adjust the production process and improve the quality of the products. Through continuous testing and mastering various reasonable production parameters, the production of dairy products is guided.
Jinan Languang Electromechanical Technology Co., Ltd.
: Jinan Languang Market Department
:
Black Garlic contains 18 kinds of amino acids,
garlic-ene, peptides, polyphenols, active SOD,
biological enzymes, glycosides, vitamins, lipids,
trace elements, carbohydrates, green sulfur
compounds, easily absorbed by the human body
composition. The structure ratio is reasonable, and
without any side effects.
18 kinds of amino acids:
Alanine Ala. Isoleucine. Leucine. Lysine. Methionine. Cystine. Phenylalanine. TYR. Threonine. Trytophan. Valine. Arginine. Histidine. Asparagine. Glutamine. Glycin. Proline. Serine.
Black Garlic Extract/Concentrate/Juice
Black Garlic Extract,Black Garlic Juice,Black Garlic Concentrate,Organic Garlic Juice
Zhucheng Tongxi Commercial And Trade Co.,Ltd. , https://www.blackgarlicgroup.com