The packaging test of packages is the use of a series of electromechanical techniques in the laboratory to simulate the main environmental load of the package during the flow and test the reliability of the package. Correctly simulating the hazards of various loads on packages during the circulation process is an important condition for selecting test methods in packaging testing. Of course, the simulation test does not require or reproduce the real environment completely. It simulates the effect of the real environment on the package and checks the protective performance of the package. With the improvement of simulation technology, the test results are closer and closer to reality. The test methods of packages are usually divided into three types: single test, multiple test and comprehensive test. The color of eye shadow products is the most colorful in eye cosmetics, including blue, cyan, green, brown, tea, brown, purple, etc., and other colors for coloring include black, white, yellow, and red. High-Pigment Eyeshadow Palette is popular.
In China and Japan, women use cinchona skin for eye beauty, and Phoenician women use black paste made of gum arabic, musk, ebony and powdery black insects to decorate their eyebrows.
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1 single test. The other purpose is to assess the ability of the package to protect the product under a specific environmental load. It only selects one of the numerous test items to be tested. When testing, the same or different test intensity and test sample status can be used to repeat multiple tests.
2 multiple tests. Its purpose is generally used to assess the protective performance of the package throughout the distribution process. It is selected from a number of pilot projects and tested in sequence.
3 comprehensive test. Its purpose is generally to assess the protective performance of the package under a variety of environmental loads. It is to apply multiple environmental loads to the package at the same time and then test it according to a predetermined procedure.
Packaging tests should be performed in a certain order:
1 single test. Temperature and humidity pretreatments are required before testing.
2 multiple tests. First of all, according to the actual situation of the hazards contained in the various aspects of the circulation process, determine a number of test items, and based on the order of occurrence of these hazards, reasonable arrangements for the test sequence. In a relatively simple case, the typical test sequence is: temperature and humidity pretreatment, stacking test, impact test, climatic test, vibration test and so on.
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The shade of eye shadow changes with popular shades, and its color and style are trendy, and should match the needs of individual skin color, clothing, different seasons and occasions.
Eye Makeup is the most important part of overall makeup. Over the centuries, people have gone through several stages of development in order to make it more delicate and beautiful. Whether it is a smoky eyeshadow or a flaky blue eyeshadow, it is a process that people keep trying.
Eye beauty cosmetics have a long history, with a history of thousands of years. In ancient times, women used black eye rim ointment based on antimony sulfide.
In ancient Egypt, whether it was Cleopatra who was amazing at the time or ordinary people, they liked to turn their eyes into a charming smoky gray. The relics and documents left from ancient Egypt show that people in Egypt at that time, regardless of their status, would apply black and green powder thickly around their eyes. Because they believe that eye shadow has the magic power of the sun god, not only can make themselves more attracted to the attention of others, but also can prevent the spread of eye diseases.
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