The making process of the plastic bottles and matters needing attention

Cleanser tube wholesale is a process of two-way stretch blow molding process, in this process, PET chains are arranged two-way stretch, orientation, and, thus increasing the bottle wall mechanical performance, can improve the tensile, tensile, impact strength, and has good air tightness. While stretching helps to improve the strength, but not excessively stretching, to control good stretch blow ratio: radial not more than 3. Five to four. 2, the axial not more than 2. 8 ~ 3. 1. The bottle preform thickness not more than 4. 5mm。 In the plastic bottle blowing and is between temperature and crystallization temperature, general control between 90 ~ 120 degrees. PET show is within the range of the high elastic state, blow molding, cooling rapidly become transparent bottle after setting. In step method, the temperature is determined by the cooling time length in molding process ( Such as aoki bottle blowing machine) , so to join good note - The relationship between the two stations. Blow molding process are: tensile - A blow - Second blow, three action time is very short, but be sure to cooperate well, especially the former two step determines the overall distribution of the material, by the quality of bottle blowing. So to adjust good: stretch the starting time, stretching rate, blow the start and end time, air pressure, blowing air flow, etc, be like likely, can control the temperature of the bottle preform general distribution, bottle preform, both inside and outside wall temperature gradient. Hand cream hose wholesale not proper heating drinks 'buy heating, because their intestines and stomach bad, can warm the stomach, can also warm hands. Just heating chose a bottle of milk tea ', says ms Yang vendors want to very thoughtful, so cold day, walk on the outside, or would like to buy some warm. , experts said, common on the market of mineral water, milk tea, carbonate and other plastic triangle within the number '1', representing the PET, labeled '1' plastic resistant to high temperature at 65 degrees Celsius, it is safe, is used in low temperature is not suitable for repeated heating, heating or even boil, PET would release a heated DEHP toxic substances, endanger human body health.