In order to compete with new packaging materials and containers such as paper product containers and plastic bottles, glass bottle and can manufacturers in developed countries have been committed to making products more reliable in quality, more beautiful in appearance, lower in cost and cheaper in price.
In order to achieve these goals, the development trend of foreign glass packaging industry is mainly manifested in the following aspects:
increase labor productivity
The key to improving the labor productivity of glass bottle manufacturing is how to improve the forming speed of glass bottles. At present, the commonly adopted method in developed countries is to use multi-group and multi-drop forming machines. A large furnace matched with a high-speed molding machine must have the ability to supply a large amount of high-quality molten glass stably, and the temperature and viscosity of the gob must meet the requirements of the best molding conditions.
Adopt advanced energy saving technology
Another way to save energy, improve melting quality, and prolong the kiln to save energy is to increase the amount of cullet, and the amount of cullet from abroad reaches 60%-70%. The ideal is to use 100% cullet to achieve the goal of “ecological” glass production.
Improve production concentration
In order to adapt to the severe competition situation caused by the challenges of other new packaging products in the glass packaging industry, a large number of glass packaging production enterprises have begun to merge and reorganize to increase the concentration of the glass container industry in order to optimize resource allocation, improve economies of scale, and reduce disorderly competition. Enhance development capability, which has become the current trend of the world’s glass packaging industry.
80% of the glass bottles and jars produced by Obedand Company in Germany are lightweight disposable bottles. The precise control of raw material composition, the precise control of the whole melting process, the small mouth pressure blowing technology (NNPB), the spraying of the cold and hot ends of the bottle and the can, and the online inspection are the fundamental guarantees for realizing the lightweight of the bottle and can. Some countries are developing new surface enhancement technologies for bottles and cans in an attempt to further reduce the weight of bottles and cans.