What are the factors that cause 'bottle breaking' when cosmetic bottles are freeze-dried?

In the production practice of freeze-dried powder injections, we found that cosmetic bottles are prone to 'broken bottles' during freeze-drying, especially after domestic cosmetic bottles are used, the bottles are broken during freeze-drying. u0026#;The problem is relatively prominent, so we have done a lot of work starting from the craftsmanship, equipment and the quality of cosmetic bottles, and finally solved this long troubled problem. This article starts from the phenomenon of 'broken bottle' during freeze-drying of cosmetic bottles, and tries to analyze the reasons

. Reasons for equipment manufacturing

At present, some domestic freeze dryers are still imitating other people's products. The lack of understanding of the design and manufacturing principles of freeze dryers and the differences in the technical quality, design structure and manufacturing process of these products have led to some manufacturers’ The shelf flatness of freeze dryer products is not good, especially the shelf with a larger area. During the compression stopper process after the freeze-drying, the pressure distribution is uneven, which causes individual cosmetic bottles to be crushed.

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The reasons for the quality of the cosmetic bottle itself

The quality of the cosmetic bottle itself is an important factor affecting the breaking speed of freeze-drying bottles. Everyone knows that before filling cosmetic bottles, they need to go through ultrasonic cleaning and high temperature disinfection to remove the heat source. No matter which process, it is a test for the cosmetic bottle itself. The intensity of ultrasonic waves and the impact of water vapor during cleaning will affect the glass, and the uneven distribution of the tunnel oven is prone to sudden heating or sudden cooling, which may even cause damage to cosmetic bottles with poor quality. The appearance of the bottle cannot be changed with the naked eye, but it is very likely that tiny cracks will occur, making it insufficient to withstand the temperature changes in the subsequent freeze-drying process.

.The reasons for the influence of freeze-drying

While investigating the quality of cosmetic bottles, we focused on the freeze-drying process and analyzed the causes of 'broken bottles'. Normally, cosmetic bottles have a greater impact on the temperature when heated evenly. Tolerance range. However, if the temperature of different parts of the same bottle (especially the bottom of the bottle) undergoes sudden cold or sudden heat changes, a relatively large temperature difference will be formed. At this time, each part of the bottle will be subjected to different expansion forces. When the force exceeds the endurance of the glass bottle itself, it will inevitably cause damage to the glass bottle. This situation is very easy to happen during the freeze-drying process.

Well, the above are the main factors that cause broken cosmetic bottles during freeze-drying. Do you want to know how to deal with these broken bottles? Please stay tuned

Botou Cosmetic Packaging Material Manufacturer Glass Products Co., Ltd.

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