In developed countries such as Europe, America and Japan, lightweight bottles have become the leading products of cosmetic glass bottle manufacturers. 80% are lightweight disposable bottles. Precise control of raw material composition, precise control of the whole melting process, small mouth pressure blowing technology (NNPB), spraying of hot and cold ends of bottles and cans, online inspection and other advanced technologies are the fundamental guarantee for the realization of lightweight bottles and cans.
Another way to save energy, improve the melting quality, and extend the furnace to save energy is to increase the amount of cullet. The amount of cullet in foreign countries can reach 60%-70%. The most ideal is to use 100% broken glass to achieve the goal of "ecological" glass production.
In order to adapt to the severe competition situation caused by the challenges of other new packaging products in the cosmetic glass bottle packaging industry, a large number of cosmetic glass packaging manufacturers have begun to merge and reorganize to increase the concentration of the glass container and bottle industry in order to optimize resource allocation, increase economies of scale, and reduce disorderly competition to enhance development capabilities. This has become the current trend of the world's glass bottle packaging material industry.
China’s cosmetic glass bottle industry is now facing various challenges. It is hoped that large Chinese companies can learn from foreign management methods and technologies to make Chinese cosmetic glass bottles everlasting and full of vitality abroad.
The key to improving the labor productivity of cosmetic glass bottles is how to increase the molding speed of cosmetic glass bottles.
At present, the method generally adopted by developed countries is to choose a molding machine with multiple groups and multiple gobs. Large kilns matched with high-speed forming machines must have the ability to supply a large amount of high-quality molten glass stably, and the temperature and viscosity of the gobs must meet the requirements of the best forming conditions. For this reason, the composition of raw materials must be very stable. Most of the refined standardized raw materials used by glass bottle manufacturers in developed countries are provided by specialized raw material manufacturers. The thermal parameters of the kiln to ensure the quality of the melting should adopt a digital control system to achieve the optimal control of the entire process.
